/*
 * T.H.O.M.A.S. interface system
 *
 * Inspired by Apple Human Interface Guidelines and the system Liquid Glass
 * material without copying Apple assets. Content stays quiet and readable;
 * translucency, specular edges, and motion communicate hierarchy and state.
 * The system font stack supplies the native typeface on each platform and
 * avoids a font download on critical screens.
 */

:root {
  color-scheme: light;
  --bg: #f5f5f7;
  --bg-elevated: #ffffff;
  --bg-card: #ffffff;
  --bg-surface: #f5f5f7;
  --surface: #ffffff;
  --surface-0: #ffffff;
  --surface-1: #ffffff;
  --surface-2: #f5f5f7;
  --surface-3: #d2d2d7;
  --surface-lowest: #f5f5f7;
  --surface2: #f5f5f7;
  --surface3: #e8e8ed;
  --surface-hover: #f0f0f2;
  --border: rgba(0, 0, 0, 0.12);
  --border-strong: rgba(0, 0, 0, 0.2);
  --border-bright: rgba(0, 113, 227, 0.45);
  --text: #1d1d1f;
  --text-primary: #1d1d1f;
  --text-secondary: #5f5f64;
  --text-tertiary: #6e6e73;
  --text-muted: #6e6e73;
  --primary: #0071e3;
  --primary-hover: #006bd8;
  --primary-active: #0068d1;
  --primary-rgb: 0, 113, 227;
  --focus-ring: #0066cc;
  --primary-soft: rgba(0, 113, 227, 0.1);
  --accent: #0071e3;
  --accent-hover: #006bd8;
  --accent-ink: #ffffff;
  --text-on-accent: #ffffff;
  --status-ink: #ffffff;
  --accent-dim: rgba(0, 113, 227, 0.12);
  --accent-soft: rgba(0, 113, 227, 0.08);
  --accent-cyan: #0071e3;
  --cyan: #0071e3;
  --teal: #0071e3;
  --green: #176b35;
  --lime: #176b35;
  --success: #176b35;
  --success-rgb: 23, 107, 53;
  --success-soft: rgba(23, 107, 53, 0.1);
  --lime-soft: rgba(23, 107, 53, 0.1);
  --amber: #795000;
  --warning: #795000;
  --warning-rgb: 121, 80, 0;
  --warning-soft: rgba(121, 80, 0, 0.1);
  --red: #b4232a;
  --error: #b4232a;
  --error-rgb: 180, 35, 42;
  --error-text: #9f1d24;
  --error-soft: rgba(180, 35, 42, 0.09);
  --purple: #5e4db2;
  --tier-none: #5f5f64;
  --tier-lite: #0066cc;
  --tier-pro: #795000;
  --tier-departamento: #176b35;
  --tier-decanatura: #006b73;
  --tier-institucional: #5e4db2;
  --ghost-border: 1px solid var(--border);
  --primary-muted: rgba(0, 113, 227, 0.35);
  --font-body: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
  --font-serif: ui-serif, Georgia, serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --radius-xs: 8px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 18px 60px rgba(0, 0, 0, 0.12);
  --duration-fast: 120ms;
  --duration-normal: 180ms;
  --ease-out: cubic-bezier(0.2, 0.8, 0.2, 1);
  --liquid-duration: 420ms;
  --liquid-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --glass-surface: rgba(255, 255, 255, 0.68);
  --glass-surface-strong: rgba(255, 255, 255, 0.82);
  --glass-surface-soft: rgba(247, 250, 255, 0.58);
  --glass-edge: rgba(255, 255, 255, 0.82);
  --glass-edge-strong: rgba(255, 255, 255, 0.94);
  --glass-blur: 28px;
  --glass-saturation: 170%;
  --glass-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.88),
    inset 0 -1px 0 rgba(255, 255, 255, 0.24),
    0 12px 38px rgba(37, 55, 82, 0.1),
    0 2px 8px rgba(37, 55, 82, 0.05);
  --glass-shadow-hover: inset 0 1px 0 rgba(255, 255, 255, 0.96),
    inset 0 -1px 0 rgba(255, 255, 255, 0.32),
    0 20px 50px rgba(37, 55, 82, 0.14),
    0 4px 12px rgba(37, 55, 82, 0.07);
  --control-height: 44px;
  --content-max: 1180px;
  --app-content-max: 1600px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 100%;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg) !important;
  background-image: none !important;
  color: var(--text) !important;
  font-family: var(--font-body) !important;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before,
body::after {
  content: none !important;
}

.particles,
.hero-particles,
.page-loader,
.scroll-progress {
  display: none !important;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
[role="button"],
a,
input,
select,
textarea,
summary {
  -webkit-tap-highlight-color: transparent;
}

button,
[role="button"],
input[type="button"],
input[type="submit"],
select,
summary {
  min-height: var(--control-height);
}

a {
  color: var(--primary);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--primary-hover);
}

:where(button, a, input, select, textarea, summary, [tabindex]):focus-visible {
  outline: 3px solid var(--focus-ring) !important;
  outline-offset: 3px !important;
}

::selection {
  background: rgba(var(--primary-rgb), 0.2);
}

::placeholder {
  color: #76767b !important;
  opacity: 1 !important;
}

[hidden] {
  display: none !important;
}

.apple-skip-link,
.skip-link {
  position: fixed !important;
  top: 10px !important;
  left: 12px !important;
  z-index: 20000 !important;
  width: auto !important;
  height: auto !important;
  padding: 10px 14px !important;
  overflow: visible !important;
  clip: auto !important;
  clip-path: none !important;
  border: 1px solid var(--border-strong) !important;
  border-radius: 10px !important;
  background: #ffffff !important;
  color: var(--text) !important;
  box-shadow: var(--shadow-md) !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  text-decoration: none !important;
  transform: translateY(-150%);
  transition: transform var(--duration-fast) var(--ease-out);
}

.apple-skip-link:focus,
.skip-link:focus {
  transform: translateY(0);
}

/* Shared controls */

.btn,
.btn-generate,
.login-btn,
.mode-btn,
.price-btn,
.btn-bracket,
.btn-filled {
  min-height: var(--control-height);
  border: 1px solid var(--border) !important;
  border-radius: 999px !important;
  background: #ffffff !important;
  color: var(--text) !important;
  box-shadow: none !important;
  font-family: var(--font-body) !important;
  font-size: 14px;
  font-weight: 600 !important;
  line-height: 1.2;
  letter-spacing: -0.005em !important;
  text-transform: none !important;
  transition: background-color var(--duration-fast) ease, border-color var(--duration-fast) ease,
    color var(--duration-fast) ease, transform var(--duration-fast) ease !important;
}

.btn:hover,
.mode-btn:hover,
.price-btn:hover,
.btn-bracket:hover {
  border-color: var(--border-strong) !important;
  background: #f5f5f7 !important;
  transform: none !important;
}

.btn:active,
.btn-generate:active,
.login-btn:active,
.mode-btn:active,
.price-btn:active,
.btn-bracket:active,
.btn-filled:active {
  transform: scale(0.98) !important;
}

.btn-primary,
.btn-generate,
.login-btn,
.btn-export-primary,
.btn-confirm,
.page-ocr .btn-primary,
.page-landing .price-card.featured .price-btn,
.page-landing .btn-filled {
  border-color: var(--primary) !important;
  background: var(--primary) !important;
  color: #ffffff !important;
}

.btn-primary:hover,
.btn-generate:hover,
.login-btn:hover,
.btn-export-primary:hover,
.page-ocr .btn-primary:hover,
.page-landing .price-card.featured .price-btn:hover,
.page-landing .btn-filled:hover {
  border-color: var(--primary-hover) !important;
  background: var(--primary-hover) !important;
  color: #ffffff !important;
}

.btn-danger-subtle,
.app-modal-btn-danger {
  border-color: rgba(var(--error-rgb), 0.3) !important;
  background: var(--error-soft) !important;
  color: var(--error-text) !important;
}

.btn-icon,
.sa-icon-button,
.inbox-modal-close,
.toast-close {
  min-width: 44px !important;
  min-height: 44px !important;
  border: 0 !important;
  border-radius: 50% !important;
  background: transparent !important;
  color: var(--text-secondary) !important;
}

.btn-icon:hover,
.sa-icon-button:hover,
.inbox-modal-close:hover,
.toast-close:hover {
  background: rgba(0, 0, 0, 0.06) !important;
  color: var(--text) !important;
}

.neu-select,
.neu-input,
.neu-textarea,
.page-login input,
.page-ocr input,
.page-ocr select,
.sa-table-toolbar input[type="search"],
.sa-action-dialog input,
.sa-action-dialog textarea {
  width: 100%;
  min-height: var(--control-height) !important;
  border: 1px solid var(--border) !important;
  border-radius: 11px !important;
  background: #ffffff !important;
  color: var(--text) !important;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.02) !important;
  font-family: var(--font-body) !important;
  font-size: 16px !important;
  line-height: 1.35;
}

.neu-select:hover,
.neu-input:hover,
.neu-textarea:hover,
.page-login input:hover,
.page-ocr input:hover,
.page-ocr select:hover {
  border-color: var(--border-strong) !important;
}

.neu-select:focus,
.neu-input:focus,
.neu-textarea:focus,
.page-login input:focus,
.page-ocr input:focus,
.page-ocr select:focus {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.12) !important;
}

:where(button, input, select, textarea):disabled {
  cursor: not-allowed !important;
  opacity: 0.5 !important;
}

.form-group label {
  color: var(--text) !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  letter-spacing: -0.004em !important;
  text-transform: none !important;
}

.form-group .hint,
.section-hint,
.topic-mode-custom-hint {
  color: var(--text-secondary) !important;
  font-size: 14px !important;
  line-height: 1.45 !important;
}

.help-tip {
  width: 44px !important;
  min-width: 44px !important;
  height: 44px !important;
  min-height: 44px !important;
  border: 0 !important;
  border-radius: 50% !important;
  background: var(--surface-2) !important;
  color: var(--primary) !important;
  font-size: 15px !important;
  font-weight: 700 !important;
}

/* Exam workspace */

.page-app {
  min-height: 100vh;
  padding: 0 20px 56px;
  overflow-x: clip;
}

.page-app #app {
  width: min(100%, var(--app-content-max));
  max-width: var(--app-content-max);
  margin: 0 auto;
}

.page-app .top-bar {
  position: sticky !important;
  top: 0;
  z-index: 900;
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100vw;
  max-width: 100vw;
  min-height: 68px;
  /* Break out of the centered app container before applying matching
     viewport-derived gutters. */
  margin: 0 calc(50% - 50vw) !important;
  padding: 10px max(20px, calc((100vw - var(--app-content-max)) / 2)) !important;
  border: 0 !important;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08) !important;
  border-radius: 0 !important;
  background: rgba(250, 250, 252, 0.86) !important;
  box-shadow: none !important;
  box-sizing: border-box;
  overflow: visible;
  backdrop-filter: saturate(180%) blur(22px);
  -webkit-backdrop-filter: saturate(180%) blur(22px);
}

.page-app .top-bar-brand {
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
}

.page-app .brand-badge {
  padding: 0 !important;
  border: 0 !important;
  background: transparent !important;
  color: var(--text) !important;
  font-family: var(--font-body) !important;
  font-size: 18px !important;
  font-weight: 700 !important;
  letter-spacing: 0.04em !important;
  box-shadow: none !important;
}

.page-app .brand-tagline {
  padding-left: 10px;
  border-left: 1px solid var(--border);
  color: var(--text-secondary) !important;
  font-family: var(--font-body) !important;
  font-size: 14px !important;
  font-style: normal !important;
  line-height: 1.2 !important;
}

.page-app .top-bar-actions {
  flex: 1 1 auto;
  min-width: 0;
  flex-direction: row !important;
  align-items: center !important;
  justify-content: flex-end;
  flex-wrap: nowrap;
  gap: 8px !important;
}

.page-app .top-bar-account,
.page-app .top-bar-exports {
  display: flex;
  min-width: 0;
  align-items: center;
  flex-wrap: nowrap;
  gap: 8px;
}

.page-app .top-bar-account {
  flex: 0 1 auto;
}

.page-app .top-bar-exports {
  flex: 0 0 auto;
  white-space: nowrap;
}

.page-app .user-badge {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-rows: auto auto;
  flex: 0 1 320px;
  width: min(320px, 40vw);
  min-width: 0;
  max-width: 320px;
  height: 44px;
  min-height: 44px;
  column-gap: 8px;
  row-gap: 0;
  overflow: hidden;
  padding: 4px 10px !important;
}

.page-app .user-badge > .icon {
  grid-column: 1;
  grid-row: 1 / 3;
  flex-shrink: 0;
}

.page-app #userName,
.page-app #userUsage {
  grid-column: 2;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.page-app #userName {
  grid-row: 1;
  line-height: 1.2;
}

.page-app #userUsage {
  grid-row: 2;
  line-height: 1.2;
}

.page-app #tokenTicker {
  grid-column: 3;
  grid-row: 1 / 3;
  align-self: center;
  margin-left: 0 !important;
  white-space: nowrap;
}

.page-app .active-exam-badge {
  min-height: 40px;
  padding: 7px 11px !important;
  border: 1px solid var(--border) !important;
  border-radius: 999px !important;
  background: rgba(255, 255, 255, 0.72) !important;
  color: var(--text) !important;
}

.page-app .active-exam-badge {
  max-width: 180px;
}

.page-app #userUsage {
  color: var(--text-secondary) !important;
  font-family: var(--font-body) !important;
  font-size: 12px !important;
  opacity: 1 !important;
}

.page-app .tab-bar {
  position: sticky !important;
  top: 69px;
  z-index: 850;
  display: flex;
  justify-content: center;
  gap: 4px !important;
  width: fit-content;
  max-width: 100%;
  margin: 14px auto 24px !important;
  padding: 5px !important;
  overflow-x: auto;
  border: 1px solid rgba(0, 0, 0, 0.1) !important;
  border-radius: 16px !important;
  background: rgba(255, 255, 255, 0.82) !important;
  box-shadow: var(--shadow-sm) !important;
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  scrollbar-width: none;
}

.page-app .tab-bar::-webkit-scrollbar {
  display: none;
}

/* The header keeps all controls on one stable row at desktop widths. The
   active-exam chip and header exports are progressive conveniences: both
   remain available inside the app when these duplicates are removed at
   intermediate widths. */
@media (max-width: 1180px) {
  .page-app #exportBtnWrap {
    display: none !important;
  }
}

@media (max-width: 1040px) {
  .page-app #exportBtnWrap {
    display: none !important;
  }

  .page-app .brand-tagline {
    display: none;
  }
}

.page-app .tab-btn {
  min-height: 44px;
  padding: 8px 13px !important;
  border: 0 !important;
  border-radius: 11px !important;
  background: transparent !important;
  color: var(--text-secondary) !important;
  font-family: var(--font-body) !important;
  font-size: 13px !important;
  font-weight: 600 !important;
  letter-spacing: -0.004em !important;
  text-transform: none !important;
  white-space: nowrap;
}

.page-app .tab-btn:hover {
  background: rgba(0, 0, 0, 0.045) !important;
  color: var(--text) !important;
}

.page-app .tab-btn.active {
  background: var(--text) !important;
  color: #ffffff !important;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.16) !important;
}

.page-app .tab-btn::after {
  content: none !important;
}

.page-app .tab-btn .icon {
  font-size: 18px !important;
}

.page-app .view {
  width: 100%;
  animation: none !important;
}

.page-app .view:focus-visible {
  outline: 3px solid var(--focus-ring) !important;
  outline-offset: 4px !important;
}

body.is-generating #loadingState {
  background: rgba(29, 29, 31, 0.5) !important;
}

body.is-generating #loadingState .gen-stage {
  border: 1px solid var(--border) !important;
  background: var(--surface-0) !important;
  color: var(--text) !important;
  box-shadow: var(--shadow-lg) !important;
}

body.is-generating #loadingState .gen-stage::before {
  content: none !important;
}

body.is-generating #loadingState :is(.gen-step, .stream-out, .gen-log) {
  border-color: var(--border) !important;
  background: var(--surface-lowest) !important;
  color: var(--text) !important;
}

/* Restore active/done differentiation the blanket rule above flattened (V5):
   without these, every pipeline step renders the same washed-out gray and
   only a tiny icon signals which step is running. */
body.is-generating #loadingState .gen-step.active {
  background: color-mix(in srgb, var(--primary) 12%, var(--bg-elevated)) !important;
  border-color: color-mix(in srgb, var(--primary) 45%, transparent) !important;
}
body.is-generating #loadingState .gen-step.done {
  background: color-mix(in srgb, var(--success) 10%, var(--bg-elevated)) !important;
  border-color: color-mix(in srgb, var(--success) 38%, transparent) !important;
}

.page-app .view-header,
.page-app .section-label {
  color: var(--text) !important;
}

.page-app .section-label {
  margin-bottom: 18px !important;
  font-family: var(--font-body) !important;
  font-size: 20px !important;
  font-weight: 700 !important;
  letter-spacing: -0.02em !important;
  text-transform: none !important;
}

.page-app .view-header-title .eyebrow,
.page-app .source-section-label {
  color: var(--text-secondary) !important;
  font-family: var(--font-body) !important;
  font-size: 13px !important;
  font-weight: 600 !important;
  letter-spacing: 0.01em !important;
  text-transform: none !important;
}

.page-app .view-header-title h2 {
  color: var(--text) !important;
  font-family: var(--font-display) !important;
  font-size: clamp(28px, 4vw, 42px) !important;
  font-style: normal !important;
  font-weight: 700 !important;
  letter-spacing: -0.035em !important;
}

.page-app .config-surface,
.page-app .welcome-card,
.page-app .q-card,
.page-app .question-card,
.page-app .bank-card,
.page-app .billing-plan-card,
.page-app .billing-topup-card,
.page-app .rf-card,
.page-app .library-card,
.page-app .exam-surface,
.page-app .status-bar,
.page-app .export-meta-row {
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-lg) !important;
  background: #ffffff !important;
  background-image: none !important;
  box-shadow: var(--shadow-sm) !important;
}

.page-app .billing-plan-card,
.page-app .billing-topup-card {
  width: 100%;
  min-height: 150px;
  color: var(--text) !important;
  font-family: var(--font-body) !important;
  text-align: left;
  cursor: pointer;
}

.page-app .billing-plan-card:disabled {
  cursor: default !important;
  opacity: 1 !important;
}

.page-app .config-surface {
  padding: clamp(20px, 4vw, 36px) !important;
}

.page-app .config-grid {
  gap: 18px !important;
}

.page-app .workflow-picker {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px !important;
  margin-bottom: 22px !important;
}

.page-app .workflow-card {
  min-height: 112px;
  padding: 20px !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-lg) !important;
  background: #ffffff !important;
  color: var(--text) !important;
  box-shadow: none !important;
  text-align: left;
}

.page-app .workflow-card:hover {
  border-color: var(--border-strong) !important;
  background: #fafafa !important;
  transform: none !important;
}

.page-app .workflow-card.workflow-active {
  border-color: rgba(var(--primary-rgb), 0.55) !important;
  background: var(--primary-soft) !important;
  box-shadow: 0 0 0 1px rgba(var(--primary-rgb), 0.12) !important;
}

.page-app .workflow-icon {
  width: 42px !important;
  height: 42px !important;
  border-radius: 12px !important;
  background: var(--surface-2) !important;
  color: var(--primary) !important;
}

.page-app .workflow-card.workflow-active .workflow-icon {
  background: var(--primary) !important;
  color: #ffffff !important;
}

.page-app .workflow-text strong {
  color: var(--text) !important;
  font-size: 17px !important;
}

.page-app .workflow-subtitle {
  margin-top: 4px !important;
  color: var(--text-secondary) !important;
  font-size: 14px !important;
  line-height: 1.45 !important;
}

.page-app .welcome-gate {
  min-height: 360px !important;
}

.page-app .welcome-card {
  padding: clamp(28px, 6vw, 64px) !important;
  text-align: center;
}

.page-app .welcome-phrase {
  color: var(--text) !important;
  font-family: var(--font-display) !important;
  font-size: clamp(30px, 5vw, 50px) !important;
  font-style: normal !important;
  font-weight: 700 !important;
  letter-spacing: -0.04em !important;
}

.page-app .welcome-form {
  width: min(100%, 680px);
  margin-inline: auto;
}

.page-app .welcome-skip,
.page-app .ribbon-change-btn {
  min-height: 44px;
  color: var(--primary) !important;
  font-size: 14px !important;
  text-decoration: none !important;
}

.page-app .active-exam-ribbon,
.page-app .ai-disclaimer,
.page-app .quota-banner,
.page-app .generation-limit-notice,
.page-app .rf-active-banner,
.page-app .error-banner {
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-md) !important;
  background: #ffffff !important;
  color: var(--text) !important;
  box-shadow: none !important;
}

.page-app .ai-disclaimer {
  border-color: rgba(var(--primary-rgb), 0.25) !important;
  background: var(--primary-soft) !important;
}

.page-app .source-section {
  margin-top: 24px !important;
  padding-top: 24px !important;
  border-top: 1px solid var(--border) !important;
}

.page-app .source-radio-group {
  display: grid !important;
  grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  gap: 10px !important;
}

.page-app .source-radio,
.page-app .topic-mode-option,
.page-app .source-book-picker,
.page-app .toggle-row,
.page-app .config-details {
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-md) !important;
  background: #ffffff !important;
  color: var(--text) !important;
  box-shadow: none !important;
}

.page-app .source-radio {
  min-height: 108px;
  padding: 16px !important;
}

.page-app .source-radio:hover {
  border-color: var(--border-strong) !important;
  background: #fafafa !important;
}

.page-app .source-radio-active {
  border-color: var(--primary) !important;
  background: var(--primary-soft) !important;
}

.page-app .source-radio-help {
  color: var(--text-secondary) !important;
  font-size: 14px !important;
  line-height: 1.45 !important;
}

.page-app .source-radio-dot {
  border-color: var(--border-strong) !important;
  background: #ffffff !important;
}

.page-app .source-radio-active .source-radio-dot {
  border-color: var(--primary) !important;
  background: var(--primary) !important;
  box-shadow: inset 0 0 0 4px #ffffff !important;
}

.page-app .source-book-picker {
  padding: 16px !important;
  background: var(--surface-2) !important;
}

.page-app .config-details {
  margin-top: 18px !important;
  overflow: hidden;
}

.page-app .config-details-summary {
  min-height: 52px;
  padding: 12px 16px !important;
  color: var(--text) !important;
  font-size: 15px !important;
  font-weight: 600 !important;
}

.page-app .config-details[open] .config-details-summary {
  border-bottom: 1px solid var(--border) !important;
  background: var(--surface-2) !important;
}

.page-app .generate-dock {
  position: static !important;
  bottom: auto;
  z-index: auto;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  margin: 20px 0 0 !important;
  padding: 12px !important;
  border: 1px solid rgba(0, 0, 0, 0.1) !important;
  border-radius: 18px !important;
  background: rgba(255, 255, 255, 0.88) !important;
  box-shadow: var(--shadow-md) !important;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
}

.page-app .btn-generate-kbd {
  border-color: rgba(255, 255, 255, 0.28) !important;
  background: rgba(255, 255, 255, 0.16) !important;
  color: #ffffff !important;
}

.page-app .status-bar,
.page-app .export-meta-row {
  padding: 16px !important;
}

.page-app .q-card,
.page-app .question-card,
.page-app .bank-card {
  margin-bottom: 14px !important;
  padding: clamp(18px, 3vw, 26px) !important;
}

.page-app .q-vignette,
.page-app .preview-stem {
  color: var(--text) !important;
  font-size: 16px !important;
  line-height: 1.65 !important;
}

.page-app .q-opt,
.page-app .preview-opt {
  min-height: 44px;
  border-color: var(--border) !important;
  border-radius: 11px !important;
  background: #ffffff !important;
  color: var(--text) !important;
}

.page-app .q-meta,
.page-app .exam-stat,
.page-app .billing-tier-badge {
  color: var(--text-secondary) !important;
  font-family: var(--font-body) !important;
  font-size: 13px !important;
  letter-spacing: 0 !important;
  text-transform: none !important;
}

.page-app .empty,
.page-app .skeleton-card {
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-lg) !important;
  background: #ffffff !important;
  color: var(--text-secondary) !important;
}

.page-app .billing-plans-grid,
.page-app .billing-topups-grid {
  gap: 14px !important;
}

.page-app .billing-plan-card:hover,
.page-app .billing-topup-card:hover {
  border-color: var(--border-strong) !important;
  transform: none !important;
}

.page-app .billing-plan-card.current {
  border-color: var(--primary) !important;
  background: var(--primary-soft) !important;
}

.page-app :where(.billing-table, .admin-table, table) {
  color: var(--text) !important;
}

.page-app :where(.billing-table, .admin-table, table) th {
  background: var(--surface-2) !important;
  color: var(--text-secondary) !important;
  font-size: 13px !important;
  letter-spacing: 0 !important;
  text-transform: none !important;
}

.page-app :where(.billing-table, .admin-table, table) td {
  border-color: var(--border) !important;
  background: #ffffff !important;
  color: var(--text) !important;
  font-size: 14px !important;
}

/* Shared modal and transient layers */

.modal-overlay,
.app-modal-overlay,
.inbox-modal-overlay,
.sa-modal-backdrop {
  background: rgba(0, 0, 0, 0.38) !important;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.modal-surface,
.modal-card,
.app-modal-card,
.inbox-modal-card,
.sa-modal,
.sa-action-dialog {
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-lg) !important;
  background: #ffffff !important;
  color: var(--text) !important;
  box-shadow: var(--shadow-lg) !important;
}

.app-modal-card,
.modal-surface,
.inbox-modal-card {
  max-width: min(560px, calc(100vw - 32px)) !important;
}

.modal-surface h2,
.app-modal-title,
.inbox-modal-title,
.sa-modal-head strong,
.sa-action-dialog h2 {
  color: var(--text) !important;
  font-family: var(--font-display) !important;
  font-weight: 700 !important;
  letter-spacing: -0.02em !important;
}

.modal-surface p,
.app-modal-message,
.paywall-body,
.inbox-empty {
  color: var(--text-secondary) !important;
}

.toast-container {
  z-index: 20000 !important;
}

.toast {
  min-height: 52px;
  border: 1px solid var(--border) !important;
  border-radius: 14px !important;
  background: rgba(255, 255, 255, 0.94) !important;
  color: var(--text) !important;
  box-shadow: var(--shadow-md) !important;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

/* System operator */

.page-system-admin {
  min-height: 100vh;
  background: var(--bg) !important;
}

.page-system-admin .sa-app {
  width: min(100%, 1480px) !important;
  max-width: 1480px !important;
  margin: 0 auto !important;
  padding: 0 24px 64px !important;
  color: var(--text) !important;
  font-family: var(--font-body) !important;
}

.page-system-admin .sa-topbar {
  position: sticky !important;
  top: 0;
  z-index: 900;
  min-height: 72px;
  margin: 0 -24px 22px !important;
  padding: 10px 24px !important;
  border: 0 !important;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08) !important;
  border-radius: 0 !important;
  background: rgba(250, 250, 252, 0.86) !important;
  box-shadow: none !important;
  backdrop-filter: saturate(180%) blur(22px);
  -webkit-backdrop-filter: saturate(180%) blur(22px);
}

.page-system-admin .sa-topbar-brand strong {
  color: var(--text) !important;
  font-family: var(--font-body) !important;
  font-size: 18px !important;
  font-weight: 700 !important;
  letter-spacing: -0.01em !important;
}

.page-system-admin .sa-topbar-brand small,
.page-system-admin .sa-topbar-meta,
.page-system-admin .sa-build-id {
  color: var(--text-secondary) !important;
  font-family: var(--font-body) !important;
  font-size: 13px !important;
  letter-spacing: 0 !important;
  text-transform: none !important;
}

.page-system-admin .sa-pulse.sa-pulse-error {
  background: var(--error) !important;
  box-shadow: 0 0 0 4px var(--error-soft) !important;
}

.page-system-admin .sa-range {
  gap: 2px !important;
  padding: 4px !important;
  border: 1px solid var(--border) !important;
  border-radius: 12px !important;
  background: rgba(0, 0, 0, 0.045) !important;
}

.page-system-admin .sa-section-nav {
  position: sticky;
  top: 84px;
  z-index: 820;
  display: flex;
  width: fit-content;
  max-width: 100%;
  margin: 0 auto 22px;
  padding: 5px;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow-sm);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  scrollbar-width: none;
}

.page-system-admin .sa-section-nav::-webkit-scrollbar {
  display: none;
}

.page-system-admin .sa-section-nav button {
  min-height: 44px;
  padding: 8px 15px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.page-system-admin .sa-section-nav button[aria-pressed="true"],
.page-system-admin .sa-section-nav button[aria-selected="true"] {
  background: var(--text);
  color: #ffffff;
}

.page-system-admin .sa-range button,
.page-system-admin .sa-filter-pill {
  min-height: 44px;
  padding: 7px 11px !important;
  border: 0 !important;
  border-radius: 9px !important;
  background: transparent !important;
  color: var(--text-secondary) !important;
  font-family: var(--font-body) !important;
  font-size: 13px !important;
  font-weight: 600 !important;
  letter-spacing: 0 !important;
  text-transform: none !important;
}

.page-system-admin .sa-range button.sa-range-active,
.page-system-admin .sa-filter-pill.sa-filter-active {
  background: #ffffff !important;
  color: var(--text) !important;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12) !important;
}

.page-system-admin .sa-hero {
  gap: 12px !important;
}

.page-system-admin .sa-kpi,
.page-system-admin .sa-card,
.page-system-admin .sa-tile,
.page-system-admin .sa-sec-check,
.page-system-admin .sa-sec-stat,
.page-system-admin .sa-model-row,
.page-system-admin .sa-job-diagnostic,
.page-system-admin .sa-account-controls {
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-md) !important;
  background: #ffffff !important;
  background-image: none !important;
  color: var(--text) !important;
  box-shadow: var(--shadow-sm) !important;
}

.page-system-admin .sa-kpi {
  min-height: 122px;
  padding: 18px !important;
}

.page-system-admin .sa-kpi-label,
.page-system-admin .sa-kpi-sub,
.page-system-admin .sa-tile-label,
.page-system-admin .sa-tile-sub,
.page-system-admin .sa-card-head,
.page-system-admin .sa-section-title,
.page-system-admin .sa-model-role,
.page-system-admin .sa-sec-check-detail {
  color: var(--text-secondary) !important;
  font-family: var(--font-body) !important;
  font-size: 14px !important;
  letter-spacing: 0 !important;
  text-transform: none !important;
}

.page-system-admin .sa-kpi-value,
.page-system-admin .sa-tile-value {
  color: var(--text) !important;
  font-family: var(--font-display) !important;
  font-variant-numeric: tabular-nums;
  font-weight: 700 !important;
  letter-spacing: -0.03em !important;
}

.page-system-admin .sa-card {
  overflow: hidden;
}

.page-system-admin .sa-card-head {
  min-height: 54px;
  padding: 14px 16px !important;
  border-bottom: 1px solid var(--border) !important;
  background: #ffffff !important;
}

.page-system-admin .sa-card-head strong {
  color: var(--text) !important;
  font-size: 15px !important;
}

.page-system-admin .sa-alert,
.page-system-admin .sa-scope-notice,
.page-system-admin .sa-danger-notice {
  border: 1px solid var(--border) !important;
  border-radius: 12px !important;
  background: #ffffff !important;
  color: var(--text) !important;
}

.page-system-admin .sa-alert-ok {
  border-color: rgba(36, 138, 61, 0.25) !important;
  background: var(--success-soft) !important;
}

.page-system-admin .sa-alert-warn {
  border-color: rgba(148, 98, 0, 0.25) !important;
  background: var(--warning-soft) !important;
}

.page-system-admin .sa-alert-crit,
.page-system-admin .sa-danger-notice {
  border-color: rgba(var(--error-rgb), 0.25) !important;
  background: var(--error-soft) !important;
}

.page-system-admin .sa-table-toolbar {
  gap: 10px !important;
  padding: 12px 14px !important;
  border-bottom: 1px solid var(--border) !important;
  background: var(--surface-2) !important;
}

.page-system-admin .sa-table {
  width: 100%;
  border-collapse: collapse;
  color: var(--text) !important;
  font-family: var(--font-body) !important;
  font-size: 14px !important;
}

.page-system-admin .sa-table th {
  padding: 12px 14px !important;
  border-color: var(--border) !important;
  background: var(--surface-2) !important;
  color: var(--text-secondary) !important;
  font-size: 13px !important;
  font-weight: 600 !important;
  letter-spacing: 0 !important;
  text-transform: none !important;
}

.page-system-admin .sa-table td {
  padding: 13px 14px !important;
  border-color: var(--border) !important;
  background: #ffffff !important;
  color: var(--text) !important;
  font-size: 14px !important;
  line-height: 1.4;
}

.page-system-admin .sa-table tr:hover td {
  background: #f8f8fa !important;
}

.page-system-admin .sa-user-row button,
.page-system-admin .sa-account-controls .btn,
.page-system-admin .sa-action-dialog-actions .btn {
  min-height: 44px !important;
}

.page-system-admin .sa-action-dialog::backdrop {
  background: rgba(0, 0, 0, 0.38) !important;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.page-system-admin .sa-action-dialog-head,
.page-system-admin .sa-action-dialog-actions {
  border-color: var(--border) !important;
  background: #ffffff !important;
}

.page-system-admin code,
.page-system-admin .sa-model-id {
  color: var(--primary) !important;
}

/* Public landing page */

.page-landing {
  opacity: 1 !important;
  overflow-x: clip !important;
  animation: none !important;
}

.page-landing .nav-header {
  position: fixed !important;
  top: 0 !important;
  z-index: 1000 !important;
  width: 100%;
  padding: 12px 20px !important;
  transform: none !important;
  opacity: 1 !important;
  background: rgba(250, 250, 252, 0.86) !important;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08) !important;
  backdrop-filter: saturate(180%) blur(22px);
  -webkit-backdrop-filter: saturate(180%) blur(22px);
}

.page-landing .nav-header.hide-nav,
.page-landing .nav-header.scrolled {
  transform: none !important;
}

.page-landing .nav-inner,
.page-landing .nav-pill {
  width: min(100%, var(--content-max)) !important;
  max-width: var(--content-max) !important;
  margin: 0 auto !important;
}

.page-landing .nav-pill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  padding: 0 !important;
  border: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
}

.page-landing .nav-brand {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--text) !important;
  font-family: var(--font-body) !important;
  font-size: 17px !important;
  font-weight: 700 !important;
  letter-spacing: 0.04em !important;
}

.page-landing .nav-links {
  gap: 4px !important;
}

.page-landing .nav-links a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 8px 12px !important;
  border-radius: 999px;
  color: var(--text-secondary) !important;
  font-family: var(--font-body) !important;
  font-size: 13px !important;
  font-weight: 500 !important;
  letter-spacing: 0 !important;
  text-transform: none !important;
}

.page-landing .nav-links a:hover {
  background: rgba(0, 0, 0, 0.05) !important;
  color: var(--text) !important;
}

.page-landing .nav-links .nav-cta {
  padding-inline: 17px !important;
  background: var(--primary) !important;
  color: #ffffff !important;
}

.page-landing .nav-hamburger {
  width: 44px !important;
  min-width: 44px;
  height: 44px !important;
  padding: 11px !important;
  border: 0 !important;
  border-radius: 50% !important;
  background: transparent !important;
}

.page-landing .nav-hamburger span {
  background: var(--text) !important;
}

.page-landing .container {
  width: min(100%, var(--content-max)) !important;
  max-width: var(--content-max) !important;
  padding-inline: 24px !important;
}

.page-landing .hero,
.page-landing .section-dark,
.page-landing .section-light,
.page-landing .cta-section,
.page-landing .footer {
  position: relative;
  background: #ffffff !important;
  background-image: none !important;
  color: var(--text) !important;
  transform: none !important;
}

.page-landing .hero {
  min-height: 760px !important;
  padding: 190px 0 110px !important;
}

.page-landing .hero-content {
  max-width: 900px !important;
  margin-inline: auto;
  text-align: center;
}

.page-landing .hero-acronym {
  margin-bottom: 28px !important;
  color: var(--text-secondary) !important;
  font-family: var(--font-body) !important;
  font-size: 13px !important;
  line-height: 1.45 !important;
  letter-spacing: 0 !important;
  text-transform: none !important;
}

.page-landing .hero-acronym strong {
  color: var(--text) !important;
  font-size: 15px;
  letter-spacing: 0.04em;
}

.page-landing .hero h1 {
  margin: 0 auto 28px !important;
  color: var(--text) !important;
  font-family: var(--font-display) !important;
  font-size: clamp(50px, 8vw, 88px) !important;
  font-weight: 700 !important;
  line-height: 0.98 !important;
  letter-spacing: -0.06em !important;
  text-transform: none !important;
}

.page-landing .hero h1 .accent,
.page-landing .gradient-text,
.page-landing .hero h1 .serif {
  background: none !important;
  color: var(--primary) !important;
  font-family: inherit !important;
  font-style: normal !important;
  -webkit-text-fill-color: currentColor !important;
}

.page-landing .hero-desc {
  max-width: 720px !important;
  margin: 0 auto 34px !important;
  color: var(--text-secondary) !important;
  font-size: clamp(18px, 2.3vw, 21px) !important;
  line-height: 1.5 !important;
}

.page-landing .hero-ctas {
  justify-content: center !important;
  gap: 12px !important;
}

.page-landing .hero-ctas .btn-bracket {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 12px 22px !important;
  text-decoration: none !important;
}

.page-landing .hero-ctas .btn-bracket:first-child {
  border-color: var(--primary) !important;
  background: var(--primary) !important;
  color: #ffffff !important;
}

.page-landing .btn-bracket::before,
.page-landing .btn-bracket::after,
.page-landing .ripple-circle {
  content: none !important;
  display: none !important;
}

.page-landing .section-light,
.page-landing .section-dark {
  padding: 112px 0 !important;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.page-landing .section-dark {
  background: var(--bg) !important;
}

.page-landing .section-label,
.page-landing .section-label.on-light,
.page-landing .section-label.on-dark {
  color: var(--primary) !important;
  font-family: var(--font-body) !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  letter-spacing: 0 !important;
  text-transform: none !important;
}

.page-landing .section-label::before,
.page-landing .section-label::after {
  content: none !important;
}

.page-landing .section-title,
.page-landing .ethos-title,
.page-landing .cta-title {
  color: var(--text) !important;
  font-family: var(--font-display) !important;
  font-size: clamp(36px, 6vw, 64px) !important;
  font-weight: 700 !important;
  line-height: 1.05 !important;
  letter-spacing: -0.045em !important;
  text-transform: none !important;
}

.page-landing .section-title .serif,
.page-landing .ethos-title .serif,
.page-landing .cta-title .serif,
.page-landing [style*="font-family: var(--font-serif)"] {
  color: inherit !important;
  font-family: inherit !important;
  font-style: normal !important;
}

.page-landing .ethos-body,
.page-landing .cta-desc,
.page-landing .value-card-desc,
.page-landing .timeline-desc,
.page-landing .alt-flow-body,
.page-landing .topup-detail,
.page-landing .topup-per,
.page-landing .topup-usecase,
.page-landing .topup-note,
.page-landing .price-features,
.page-landing .stat-source {
  color: var(--text-secondary) !important;
  font-family: var(--font-body) !important;
  font-size: 16px !important;
  line-height: 1.55 !important;
}

.page-landing .price-features li {
  color: var(--text-secondary) !important;
  font-size: 14px !important;
  line-height: 1.5 !important;
}

.page-landing .price-features li.is-unavailable {
  color: var(--text-tertiary) !important;
}

.page-landing .value-card,
.page-landing .step-card,
.page-landing .cap-card,
.page-landing .stats-card,
.page-landing .bib-card,
.page-landing .alt-flow-card,
.page-landing .price-card,
.page-landing .topup-card {
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-lg) !important;
  background: #ffffff !important;
  background-image: none !important;
  color: var(--text) !important;
  box-shadow: var(--shadow-sm) !important;
  transform: none !important;
}

.page-landing .section-light .value-card,
.page-landing .section-light .price-card,
.page-landing .section-light .topup-card {
  background: #ffffff !important;
}

.page-landing :where(.value-card, .step-card, .cap-card, .stats-card, .bib-card, .alt-flow-card, .price-card, .topup-card):hover {
  border-color: var(--border-strong) !important;
  box-shadow: var(--shadow-md) !important;
  transform: none !important;
}

.page-landing .value-card-title,
.page-landing .step-card h3,
.page-landing .cap-card h3,
.page-landing .bib-card h3,
.page-landing .alt-flow-card h3,
.page-landing .price-tier,
.page-landing .topup-name,
.page-landing .stat-header {
  color: var(--text) !important;
  font-family: var(--font-body) !important;
  font-weight: 700 !important;
  letter-spacing: -0.015em !important;
  text-transform: none !important;
}

.page-landing .value-card-number,
.page-landing .cap-number,
.page-landing .step-num,
.page-landing .alt-flow-badge,
.page-landing .timeline-label,
.page-landing .timeline-tag,
.page-landing .bib-tag {
  color: var(--primary) !important;
  font-family: var(--font-body) !important;
  letter-spacing: 0 !important;
  text-transform: none !important;
}

.page-landing .price-card.featured {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 1px rgba(var(--primary-rgb), 0.1), var(--shadow-md) !important;
}

.page-landing .price-amount,
.page-landing .topup-amount,
.page-landing .stat-row .value {
  color: var(--text) !important;
  font-family: var(--font-display) !important;
  font-weight: 700 !important;
  letter-spacing: -0.035em !important;
}

.page-landing .check,
.page-landing .included,
.page-landing .highlight {
  color: var(--success) !important;
}

.page-landing .no {
  color: var(--text-tertiary) !important;
}

.page-landing .cta-section {
  padding: 120px 0 !important;
  background: var(--bg) !important;
  text-align: center;
}

.page-landing .footer {
  padding: 34px 0 !important;
  border-top: 1px solid var(--border) !important;
  background: #ffffff !important;
}

.page-landing .footer p,
.page-landing .footer .brand {
  color: var(--text-secondary) !important;
  font-family: var(--font-body) !important;
}

.page-landing .footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 20px;
  margin-top: 18px;
}

.page-landing .footer-links a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--text-secondary) !important;
  font-size: 14px;
}

.page-landing .reveal,
.page-landing .reveal-scale,
.page-landing .reveal-left,
.page-landing .reveal-right,
.page-landing .reveal-blur,
.page-landing .stagger-children > *,
.page-landing .stagger-scale > *,
.page-landing .hero-content > *,
.page-landing .line-reveal .line-inner,
.page-landing .stat-row-anim,
.page-landing .draw-border,
.page-landing .rotate-in,
.page-landing .title-underline,
.page-landing .word {
  opacity: 1 !important;
  filter: none !important;
  transform: none !important;
  animation: none !important;
  clip-path: none !important;
  transition: none !important;
}

.page-landing .gradient-text,
.page-landing .gradient-border::before,
.page-landing .typewriter-cursor::after,
.page-landing .float-anim,
.page-landing .btn-pulse,
.page-landing .shimmer::after {
  animation: none !important;
}

/* Login and account creation */

.page-login {
  min-height: 100vh;
  align-items: center !important;
  justify-content: center !important;
  padding: 36px 20px;
  overflow-y: auto !important;
  opacity: 1 !important;
  animation: none !important;
}

.page-login .login-container {
  width: min(100%, 480px) !important;
  max-width: 480px !important;
  padding: 0 !important;
}

.page-login .login-brand {
  margin-bottom: 24px !important;
}

.page-login .login-brand h1,
.page-login .login-brand h1 .accent {
  margin-bottom: 8px !important;
  color: var(--text) !important;
  font-family: var(--font-body) !important;
  font-size: 24px !important;
  font-weight: 700 !important;
  letter-spacing: 0.04em !important;
}

.page-login .login-brand .full-name {
  display: none;
}

.page-login .login-brand .university {
  color: var(--text-secondary) !important;
  font-family: var(--font-body) !important;
  font-size: 15px !important;
  font-weight: 400 !important;
  letter-spacing: 0 !important;
  text-transform: none !important;
}

.page-login .mode-toggle {
  display: grid !important;
  grid-template-columns: 1fr 1fr;
  gap: 3px !important;
  margin-bottom: 12px !important;
  padding: 4px !important;
  border: 1px solid var(--border) !important;
  border-radius: 13px !important;
  background: rgba(0, 0, 0, 0.045) !important;
}

.page-login .mode-toggle button {
  min-height: 44px;
  border: 0 !important;
  border-radius: 9px !important;
  background: transparent !important;
  color: var(--text-secondary) !important;
  font-size: 14px !important;
  font-weight: 600 !important;
}

.page-login .mode-toggle button.active {
  background: #ffffff !important;
  color: var(--text) !important;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12) !important;
}

.page-login .login-card {
  padding: clamp(22px, 6vw, 34px) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-lg) !important;
  background: #ffffff !important;
  box-shadow: var(--shadow-md) !important;
}

.page-login .login-card::before,
.page-login .login-card::after {
  content: none !important;
}

.page-login .form-panel[hidden] {
  display: none !important;
}

.page-login .form-group {
  margin-bottom: 18px !important;
}

.page-login .form-group label {
  margin-bottom: 7px !important;
}

.page-login .login-btn {
  width: 100%;
  min-height: 48px;
  margin-top: 4px;
}

.page-login .msg-box {
  border-radius: 11px !important;
  font-size: 14px !important;
  line-height: 1.45 !important;
}

.page-login .msg-box.error {
  border-color: rgba(var(--error-rgb), 0.25) !important;
  background: var(--error-soft) !important;
  color: var(--error-text) !important;
}

.page-login .msg-box.success {
  border-color: rgba(36, 138, 61, 0.25) !important;
  background: var(--success-soft) !important;
  color: var(--success) !important;
}

.page-login .invite-icon {
  opacity: 0.65;
}

.page-login .plan-grid {
  gap: 10px !important;
}

.page-login .plan-card {
  width: 100%;
  min-height: 92px;
  padding: 14px !important;
  border: 1px solid var(--border) !important;
  border-radius: 13px !important;
  background: #ffffff !important;
  color: var(--text) !important;
  box-shadow: none !important;
  font-family: var(--font-body) !important;
  text-align: left;
}

.page-login .plan-card:hover {
  border-color: var(--border-strong) !important;
  transform: none !important;
}

.page-login .plan-card.selected {
  border-color: var(--primary) !important;
  background: var(--primary-soft) !important;
}

.page-login .plan-card.current-plan:not(.selected) {
  border-color: rgba(var(--success-rgb), 0.45) !important;
  background: var(--success-soft) !important;
}

.page-login .password-toggle {
  min-width: 64px;
  min-height: 44px;
  color: var(--text-secondary) !important;
}

.page-login .login-help a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--primary) !important;
}

.page-app .btn-iconish,
.page-app .delete-book-btn {
  min-width: 44px;
  min-height: 44px;
}

.page-app input[type="file"]:not([hidden]) {
  min-height: 44px;
  max-width: 100%;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-2);
}

.page-app .billing-table-scroll {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  -webkit-overflow-scrolling: touch;
}

.page-login .plan-name,
.page-login .plan-price,
.page-login .plan-quota,
.page-login .plan-step-title,
.page-login .plan-step-subtitle {
  color: var(--text) !important;
  font-family: var(--font-body) !important;
}

.page-login .plan-quota,
.page-login .plan-step-subtitle {
  color: var(--text-secondary) !important;
}

.page-login .plan-skip-button {
  min-height: 44px;
  padding: 8px 12px;
  border: 0;
  background: transparent;
  color: var(--primary);
  font-size: 14px;
  cursor: pointer;
}

.page-login .login-footer a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--text-secondary) !important;
  font-size: 14px !important;
}

/* OCR operations */

.page-ocr {
  min-height: 100vh;
  padding: 28px 20px 64px;
  background: var(--bg) !important;
}

.page-ocr #authGate {
  background: var(--bg) !important;
  color: var(--text) !important;
}

.page-ocr #authGateActions a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 8px 14px;
}

.page-ocr .app-wrap {
  width: min(100%, 980px) !important;
  max-width: 980px !important;
  margin: 0 auto !important;
}

.page-ocr .header {
  margin-bottom: 28px !important;
  text-align: left !important;
}

.page-ocr .header h1,
.page-ocr .header h1 span {
  color: var(--text) !important;
  font-family: var(--font-display) !important;
  font-size: clamp(32px, 5vw, 48px) !important;
  font-weight: 700 !important;
  letter-spacing: -0.04em !important;
}

.page-ocr .header h1 span {
  color: var(--primary) !important;
}

.page-ocr .header p,
.page-ocr .dropzone-hint,
.page-ocr .progress-info,
.page-ocr .job-meta {
  color: var(--text-secondary) !important;
  font-size: 14px !important;
}

.page-ocr .back-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--primary) !important;
  font-size: 14px !important;
  text-decoration: none !important;
}

.page-ocr .engine-badge {
  border: 1px solid rgba(var(--primary-rgb), 0.2) !important;
  border-radius: 999px !important;
  background: var(--primary-soft) !important;
  color: var(--primary) !important;
  font-family: var(--font-body) !important;
  font-size: 13px !important;
  letter-spacing: 0 !important;
  text-transform: none !important;
}

.page-ocr .card,
.page-ocr .result-wrap,
.page-ocr .progress-wrap,
.page-ocr .cost-banner,
.page-ocr .stat-box,
.page-ocr .job-item,
.page-ocr .chapter-item {
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-lg) !important;
  background: #ffffff !important;
  background-image: none !important;
  color: var(--text) !important;
  box-shadow: var(--shadow-sm) !important;
}

.page-ocr .file-item {
  border: 1px solid var(--border) !important;
  background: var(--surface-2) !important;
  color: var(--text) !important;
}

.page-ocr .file-move,
.page-ocr .file-remove {
  min-width: 40px;
  min-height: 40px;
  border-radius: 8px;
}

.page-ocr .inline-feedback {
  border-color: rgba(var(--error-rgb), 0.25) !important;
  background: var(--error-soft) !important;
  color: var(--error-text) !important;
}

.page-ocr .card {
  padding: clamp(18px, 4vw, 28px) !important;
}

.page-ocr .card-title {
  color: var(--text) !important;
  font-family: var(--font-body) !important;
  font-size: 17px !important;
  font-weight: 700 !important;
  letter-spacing: -0.015em !important;
}

.page-ocr .mode-btn {
  flex: 1;
  min-height: 44px;
}

.page-ocr .mode-btn.active {
  border-color: var(--primary) !important;
  background: var(--primary-soft) !important;
  color: var(--primary) !important;
}

.page-ocr .dropzone {
  width: 100%;
  min-height: 210px;
  border: 2px dashed var(--border-strong) !important;
  border-radius: var(--radius-lg) !important;
  background: var(--surface-2) !important;
  color: var(--text) !important;
}

.page-ocr .dropzone:hover,
.page-ocr .dropzone.dragover {
  border-color: var(--primary) !important;
  background: var(--primary-soft) !important;
}

.page-ocr .dropzone-icon,
.page-ocr .dropzone-text,
.page-ocr .stat-val,
.page-ocr .progress-status,
.page-ocr .job-name,
.page-ocr .ch-title {
  color: var(--text) !important;
}

.page-ocr .dropzone-icon,
.page-ocr .dropzone-text,
.page-ocr .dropzone-hint {
  display: block;
}

.page-ocr .progress-bar-bg {
  background: var(--surface-3) !important;
}

.page-ocr .progress-bar-fill {
  background: var(--primary) !important;
}

.page-ocr .result-preview {
  border: 1px solid var(--border) !important;
  border-radius: 12px !important;
  background: var(--surface-2) !important;
  color: var(--text) !important;
  font-family: var(--font-body) !important;
  font-size: 15px !important;
  line-height: 1.65 !important;
}

.page-ocr .bib-item {
  width: 100%;
  min-height: 52px;
  font: inherit;
  text-align: left;
  border-color: var(--border) !important;
  color: var(--text) !important;
}

.page-ocr .chapter-item {
  width: 100%;
  min-height: 52px;
  font: inherit;
  text-align: left;
}

.page-ocr .bib-item:hover {
  background: var(--surface-2) !important;
}

.page-ocr #copyrightModal,
.page-ocr #chapterModal {
  width: 100vw;
  max-width: none;
  height: 100vh;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: rgba(0, 0, 0, 0.38) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

.page-ocr #copyrightModal[open] {
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-ocr #chapterModal[open] {
  display: block;
}

.page-ocr #copyrightModal::backdrop,
.page-ocr #chapterModal::backdrop {
  background: transparent;
}

.page-ocr #copyrightModal > div,
.page-ocr #chapterModal > div {
  border-color: var(--border) !important;
  background: #ffffff !important;
  color: var(--text) !important;
  box-shadow: var(--shadow-lg) !important;
}

.page-ocr #copyrightDecline,
.page-ocr #copyrightAccept {
  min-height: 48px;
  border-radius: 999px !important;
  font-family: var(--font-body) !important;
}

.page-ocr #copyrightDecline {
  border-color: var(--border) !important;
  background: #ffffff !important;
  color: var(--text) !important;
}

.page-ocr #copyrightAccept {
  background: var(--primary) !important;
  color: #ffffff !important;
}

/* Liquid Glass enhancement layer
 *
 * The Apple sample groups related glass elements and animates state changes
 * between them. On the web, the equivalent is a restrained shared material,
 * a bright specular edge, and short spring-like transitions. Repeated reading
 * surfaces stay more opaque than navigation and transient controls.
 */

.page-app,
.page-system-admin,
.page-login,
.page-ocr,
.page-landing {
  background:
    radial-gradient(70rem 38rem at 4% -8%, rgba(0, 122, 255, 0.14), transparent 64%),
    radial-gradient(58rem 36rem at 102% 2%, rgba(91, 214, 199, 0.12), transparent 62%),
    radial-gradient(52rem 34rem at 72% 84%, rgba(139, 116, 255, 0.08), transparent 66%),
    linear-gradient(180deg, #f9fbff 0%, #f4f6fa 42%, #f5f5f7 100%) !important;
}

.page-landing .hero,
.page-landing .section-light {
  background: rgba(255, 255, 255, 0.24) !important;
}

.page-landing .section-dark,
.page-landing .cta-section {
  background: rgba(241, 246, 253, 0.48) !important;
}

.page-landing .footer {
  background: rgba(255, 255, 255, 0.94) !important;
}

/* Integrated title bars and floating navigation materials. */
.page-app .top-bar,
.page-system-admin .sa-topbar {
  border-color: rgba(255, 255, 255, 0.72) !important;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(244, 248, 255, 0.62)) !important;
  box-shadow: inset 0 -1px 0 rgba(62, 77, 103, 0.08), 0 12px 36px rgba(37, 55, 82, 0.07) !important;
  backdrop-filter: saturate(var(--glass-saturation)) blur(var(--glass-blur));
  -webkit-backdrop-filter: saturate(var(--glass-saturation)) blur(var(--glass-blur));
}

.page-landing .nav-header {
  border: 0 !important;
  background: transparent !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

.page-landing .nav-pill,
.page-app .tab-bar,
.page-app .generate-dock,
.page-system-admin .sa-section-nav,
.page-login .login-card,
.page-ocr .mode-options,
.page-landing .nav-mobile-overlay,
.page-ocr #copyrightModal > div,
.page-ocr #chapterModal > div,
:is(
  .modal-surface,
  .modal-card,
  .app-modal-card,
  .inbox-modal-card,
  .sa-modal,
  .sa-action-dialog,
  .toast
) {
  border-color: var(--glass-edge) !important;
  background:
    linear-gradient(145deg, var(--glass-surface-strong), var(--glass-surface-soft)) !important;
  box-shadow: var(--glass-shadow) !important;
  backdrop-filter: saturate(var(--glass-saturation)) blur(var(--glass-blur));
  -webkit-backdrop-filter: saturate(var(--glass-saturation)) blur(var(--glass-blur));
}

/* Segmented controls inside a glass parent share that parent's blur plane. */
.page-login .mode-toggle,
.page-system-admin .sa-range {
  border-color: rgba(29, 29, 31, 0.12) !important;
  background: rgba(255, 255, 255, 0.72) !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.92), 0 1px 4px rgba(37, 55, 82, 0.06) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

.page-landing .nav-pill {
  min-height: 58px;
  padding: 6px 9px 6px 17px !important;
  border: 1px solid var(--glass-edge) !important;
  border-radius: 24px !important;
}

/* Primary content material. These surfaces use a higher white component so
   clinical text and tabular data retain their normal contrast. */
.page-app :is(
  .config-surface,
  .welcome-card,
  .q-card,
  .question-card,
  .bank-card,
  .billing-plan-card,
  .billing-topup-card,
  .rf-card,
  .library-card,
  .exam-surface,
  .status-bar,
  .export-meta-row,
  .generate-dock
),
.page-system-admin :is(
  .sa-kpi,
  .sa-card,
  .sa-tile,
  .sa-sec-check,
  .sa-sec-stat,
  .sa-model-row,
  .sa-job-diagnostic,
  .sa-account-controls
),
.page-landing :is(
  .value-card,
  .step-card,
  .cap-card,
  .stats-card,
  .bib-card,
  .alt-flow-card,
  .price-card,
  .topup-card
),
.page-login :is(.login-card, .plan-card),
.page-ocr :is(
  .card,
  .result-wrap,
  .progress-wrap,
  .cost-banner,
  .stat-box,
  .job-item,
  .chapter-item
),
:is(
  .modal-surface,
  .modal-card,
  .app-modal-card,
  .inbox-modal-card,
  .sa-modal,
  .sa-action-dialog,
  .toast
) {
  border-color: var(--glass-edge) !important;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(248, 251, 255, 0.9)) !important;
  background-image:
    linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(248, 251, 255, 0.9)) !important;
  box-shadow: var(--glass-shadow) !important;
}

.page-app :is(.active-exam-ribbon, .ai-disclaimer, .quota-banner, .generation-limit-notice, .rf-active-banner),
.page-system-admin :is(.sa-alert, .sa-scope-notice),
.page-ocr .engine-badge {
  border-color: rgba(255, 255, 255, 0.78) !important;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(var(--primary-rgb), 0.08)) !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9), 0 8px 24px rgba(37, 55, 82, 0.06) !important;
}

/* Status meaning outranks the generic glass treatment. */
.page-system-admin .sa-alert-ok {
  border-color: rgba(36, 138, 61, 0.3) !important;
  background: var(--success-soft) !important;
}

.page-system-admin .sa-alert-warn {
  border-color: rgba(148, 98, 0, 0.3) !important;
  background: var(--warning-soft) !important;
}

.page-system-admin .sa-alert-crit,
.page-system-admin .sa-danger-notice {
  border-color: rgba(var(--error-rgb), 0.3) !important;
  background: var(--error-soft) !important;
}

.page-system-admin .sa-sec-warn {
  border-color: rgba(var(--warning-rgb), 0.38) !important;
}

.page-system-admin .sa-sec-crit,
.page-system-admin .sa-job-diagnostic-error {
  border-color: rgba(var(--error-rgb), 0.42) !important;
}

/* Nested controls remain quieter than their containing glass surface. */
.page-app :is(.workflow-card, .source-radio, .topic-mode-option, .source-book-picker, .toggle-row, .config-details, .q-opt, .preview-opt),
.page-ocr :is(.dropzone, .file-item, .result-preview, .bib-item),
.page-system-admin .sa-card-head,
.neu-select,
.neu-input,
.neu-textarea,
.page-login input,
.page-ocr input,
.page-ocr select,
.sa-table-toolbar input[type="search"],
.sa-action-dialog input,
.sa-action-dialog textarea {
  border-color: rgba(29, 29, 31, 0.14) !important;
  background: rgba(255, 255, 255, 0.9) !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.92), 0 1px 3px rgba(37, 55, 82, 0.06) !important;
  transition: border-color var(--duration-normal) ease, background-color var(--duration-normal) ease,
    box-shadow var(--duration-normal) ease, transform var(--liquid-duration) var(--liquid-spring) !important;
}

.page-app :is(.workflow-card.workflow-active, .source-radio-active, .billing-plan-card.current),
.page-login .plan-card.selected,
.page-ocr .mode-btn.active {
  border-color: rgba(var(--primary-rgb), 0.48) !important;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.8), rgba(var(--primary-rgb), 0.15)) !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.94), 0 10px 28px rgba(var(--primary-rgb), 0.11) !important;
}

/* Glass buttons preserve a physical press response while keeping the primary
   action unmistakably blue. */
.btn,
.mode-btn,
.price-btn,
.btn-bracket,
.btn-filled,
.page-landing .nav-links a,
.page-app .btn-icon,
.page-system-admin .sa-icon-button,
.page-login .password-toggle {
  transition: color var(--duration-normal) ease, border-color var(--duration-normal) ease,
    background-color var(--duration-normal) ease, box-shadow var(--liquid-duration) var(--liquid-spring),
    transform var(--liquid-duration) var(--liquid-spring) !important;
}

.btn:not(:where(.btn-primary, .btn-generate, .login-btn, .btn-danger-subtle, .btn-export-primary, .btn-confirm)),
.mode-btn:not(.active),
.price-btn:not(.featured .price-btn),
.btn-bracket:not(:first-child) {
  border-color: rgba(29, 29, 31, 0.14) !important;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(244, 248, 255, 0.84)) !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.94), 0 7px 18px rgba(37, 55, 82, 0.07) !important;
}

.btn-primary,
.btn-generate,
.login-btn,
.btn-export-primary,
.btn-confirm,
.page-ocr .btn-primary,
.page-landing .price-card.featured .price-btn,
.page-landing .btn-filled,
.page-landing .hero-ctas .btn-bracket:first-child,
.page-landing .nav-links .nav-cta {
  border-color: rgba(0, 94, 214, 0.42) !important;
  background: linear-gradient(180deg, #0071e3, #0068d1) !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.42), 0 10px 24px rgba(var(--primary-rgb), 0.24) !important;
}

.page-app .tab-btn,
.page-system-admin .sa-section-nav button,
.page-login .mode-toggle button {
  transition: color var(--duration-normal) ease, background-color var(--duration-normal) ease,
    box-shadow var(--liquid-duration) var(--liquid-spring), transform var(--liquid-duration) var(--liquid-spring) !important;
}

/* Segmented controls have stronger selectors than the shared :where() focus
   rule, so keep their keyboard focus treatment explicit and dependable. */
.page-app .tab-btn:focus-visible,
.page-system-admin .sa-section-nav button:focus-visible,
.page-system-admin .sa-range button:focus-visible,
.page-login .mode-toggle button:focus-visible {
  outline: 3px solid var(--focus-ring) !important;
  outline-offset: 0 !important;
}

.page-app .tab-btn.active,
.page-system-admin .sa-section-nav button[aria-pressed="true"],
.page-system-admin .sa-section-nav button[aria-selected="true"],
.page-login .mode-toggle button.active {
  background: linear-gradient(180deg, #0071e3, #0068d1) !important;
  color: #ffffff !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45), 0 7px 18px rgba(var(--primary-rgb), 0.24) !important;
}

@media (hover: hover) and (pointer: fine) {
  .page-landing :is(.value-card, .step-card, .cap-card, .stats-card, .bib-card, .alt-flow-card, .price-card, .topup-card):hover,
  .page-app :is(.workflow-card, .billing-plan-card:not(.current), .billing-topup-card, .source-radio):hover {
    border-color: var(--glass-edge-strong) !important;
    box-shadow: var(--glass-shadow-hover) !important;
    transform: translateY(-3px) !important;
  }

  .btn:not(:disabled):hover,
  .mode-btn:not(:disabled):hover,
  .price-btn:not(:disabled):hover,
  .btn-bracket:not(:disabled):hover,
  .page-app .tab-btn:not(:disabled):hover,
  .page-system-admin .sa-section-nav button:not(:disabled):hover,
  .page-landing .nav-links a:hover {
    transform: translateY(-1px) scale(1.012) !important;
  }
}

:is(.btn, .btn-generate, .login-btn, .mode-btn, .price-btn, .btn-bracket, .btn-filled, .tab-btn):not(:disabled):active {
  transform: scale(0.98) !important;
  transition-duration: 90ms !important;
}

/* Short, state-linked motion. Nothing loops continuously. */
@keyframes liquid-shell-enter {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.992);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes liquid-panel-enter {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.996);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes liquid-dialog-enter {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.975);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes liquid-toast-enter {
  from {
    opacity: 0;
    transform: translateY(-8px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-login .login-container,
.page-ocr .app-wrap,
.page-system-admin :is(#saAuthBlock, #saContent) {
  animation: liquid-shell-enter 680ms var(--liquid-spring) both !important;
}

.page-app .view.active,
.page-system-admin [data-sa-panel]:not([hidden]) {
  transform-origin: top center;
  animation: liquid-panel-enter var(--liquid-duration) var(--liquid-spring) both !important;
}

:is(.modal-surface, .modal-card, .app-modal-card, .inbox-modal-card, .sa-modal, .sa-action-dialog[open]),
.page-ocr :is(#copyrightModal[open], #chapterModal[open]) > div {
  transform-origin: center;
  animation: liquid-dialog-enter 360ms var(--liquid-spring) both !important;
}

.toast:not(.toast-closing) {
  animation: liquid-toast-enter 360ms var(--liquid-spring) both !important;
}

.toast.toast-closing {
  animation: toastOut 250ms ease-in forwards !important;
}

.app-modal-closing .app-modal-card {
  animation: appModalCardOut 150ms ease-in forwards !important;
}

.toast.toast-error {
  border-color: rgba(var(--error-rgb), 0.5) !important;
}

.toast.toast-warning {
  border-color: rgba(var(--warning-rgb), 0.5) !important;
}

.page-ocr .progress-bar-fill,
.progress-fill,
.usage-bar-fill {
  transition: width 520ms var(--liquid-spring) !important;
}

/* Progressive motion only starts after JavaScript has prepared every target.
   Opacity and transforms keep the work on the compositor. */
@media (prefers-reduced-motion: no-preference) {
  body.page-landing.motion-ready .hero-content > * {
    animation: liquid-shell-enter 640ms var(--liquid-spring) both !important;
  }

  body.page-landing.motion-ready .hero-content > *:nth-child(2) {
    animation-delay: 60ms !important;
  }

  body.page-landing.motion-ready .hero-content > *:nth-child(3) {
    animation-delay: 120ms !important;
  }

  body.page-landing.motion-ready .hero-content > *:nth-child(4) {
    animation-delay: 180ms !important;
  }

  body.page-landing.motion-ready [data-motion],
  body.page-landing.motion-ready [data-motion-stagger] > * {
    opacity: 1 !important;
    transform: none !important;
    transition: opacity 620ms var(--liquid-spring),
      transform 620ms var(--liquid-spring) !important;
  }

  body.page-landing.motion-ready [data-motion]:not(.is-visible) {
    opacity: 0 !important;
    transform: translate3d(0, 16px, 0) !important;
  }

  body.page-landing.motion-ready [data-motion-stagger]:not(.is-visible) > * {
    opacity: 0 !important;
    transform: translate3d(0, 14px, 0) scale(0.985) !important;
  }

  body.page-landing.motion-ready [data-motion-stagger].is-visible > *:nth-child(2) {
    transition-delay: 50ms !important;
  }

  body.page-landing.motion-ready [data-motion-stagger].is-visible > *:nth-child(3) {
    transition-delay: 100ms !important;
  }

  body.page-landing.motion-ready [data-motion-stagger].is-visible > *:nth-child(4) {
    transition-delay: 150ms !important;
  }

  body.page-landing.motion-ready [data-motion-stagger].is-visible > *:nth-child(5) {
    transition-delay: 200ms !important;
  }

  body.page-landing.motion-ready [data-motion-stagger].is-visible > *:nth-child(n + 6) {
    transition-delay: 250ms !important;
  }
}

/* Material fallbacks preserve contrast and hierarchy when transparency is
   unavailable or the user asks the operating system to reduce it. */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .page-app .top-bar,
  .page-app .tab-bar,
  .page-app .generate-dock,
  .page-system-admin .sa-topbar,
  .page-system-admin .sa-section-nav,
  .page-system-admin .sa-range,
  .page-landing .nav-pill,
  .page-landing .nav-mobile-overlay,
  .page-login .mode-toggle,
  .page-login .login-card,
  .page-ocr .mode-options,
  .page-ocr #copyrightModal > div,
  .page-ocr #chapterModal > div,
  :is(.modal-surface, .modal-card, .app-modal-card, .inbox-modal-card, .sa-modal, .sa-action-dialog, .toast) {
    background: #ffffff !important;
  }
}

/* Responsive behavior and text enlargement */

@media (min-width: 1500px) {
  .page-app #reformatterContent {
    display: grid;
    grid-template-columns: minmax(340px, 0.42fr) minmax(0, 1fr);
    align-items: start;
    gap: 20px;
  }

  .page-app #reformatterContent .rf-overview-card {
    position: sticky;
    top: 150px;
    grid-column: 1;
    grid-row: 1;
    margin-bottom: 0;
  }

  .page-app #reformatterContent .rf-facts {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-app #reformatterContent .rf-compose-card {
    grid-column: 2;
    grid-row: 1;
    margin-bottom: 0;
  }

  .page-app #reformatterContent :is(#rfJobsContainer, #rfJobDetail) {
    grid-column: 1 / -1;
  }

  .page-app #reformatterContent :is(#rfJobsContainer, #rfJobDetail):empty {
    display: none;
  }
}

@media (max-width: 980px) {
  .page-app {
    padding-inline: 16px;
  }

  .page-app .top-bar {
    margin-inline: calc(50% - 50vw) !important;
    padding-inline: 16px !important;
  }

  .page-app .top-bar-actions {
    flex: 1 1 auto;
    min-width: 0;
    max-width: none;
  }

  .page-system-admin .sa-topbar {
    align-items: flex-start !important;
    flex-wrap: wrap !important;
  }

  .page-system-admin .sa-section-nav {
    position: relative;
    top: auto;
    width: 100%;
    justify-content: flex-start;
  }

  .page-system-admin .sa-topbar-spacer {
    display: none;
  }

  .page-system-admin .sa-topbar-meta {
    width: 100%;
    overflow-x: auto;
  }

  .page-system-admin .sa-main,
  .page-system-admin .sa-main-security,
  .page-system-admin .sa-bottom {
    grid-template-columns: 1fr !important;
  }
}

@media (min-width: 761px) and (max-width: 900px) {
  .page-landing .nav-pill {
    padding: 6px 8px 6px 14px !important;
  }

  .page-landing .nav-brand {
    font-size: 15px !important;
  }

  .page-landing .nav-links {
    gap: 2px !important;
  }

  .page-landing .nav-links a {
    padding: 8px 7px !important;
    font-size: 12px !important;
    white-space: nowrap;
  }

  .page-landing .nav-links .nav-cta {
    padding-inline: 12px !important;
  }
}

@media (max-width: 760px) {
  html {
    scroll-padding-bottom: calc(96px + env(safe-area-inset-bottom));
  }

  body {
    font-size: 16px;
  }

  .page-app {
    padding: 0 12px 96px;
  }

  .page-app .top-bar {
    position: relative !important;
    min-height: 60px;
    margin: 0 calc(50% - 50vw) !important;
    padding: 8px 12px !important;
  }

  .page-app .brand-tagline {
    display: none;
  }

  .page-app .top-bar-actions {
    flex: 1 1 auto;
    min-width: 0;
    max-width: none;
  }

  .page-app .user-badge .icon,
  .page-app #userUsage,
  .page-app #tokenTicker {
    display: none;
  }

  .page-app .tab-bar {
    position: fixed !important;
    inset: auto 8px 8px 8px !important;
    z-index: 1500;
    width: auto;
    max-width: none;
    margin: 0 !important;
    padding: 5px max(5px, env(safe-area-inset-right)) calc(5px + env(safe-area-inset-bottom)) max(5px, env(safe-area-inset-left)) !important;
    justify-content: flex-start;
    border-radius: 18px !important;
  }

  .page-app .tab-btn {
    flex: 1 0 68px;
    min-width: 68px;
    min-height: 54px;
    padding: 5px 7px !important;
    flex-direction: column;
    gap: 2px !important;
    font-size: 11px !important;
  }

  .page-app .tab-btn .icon {
    font-size: 20px !important;
  }

  .page-app :is(input, select, textarea, button, [contenteditable="true"], [tabindex]) {
    scroll-margin-bottom: calc(96px + env(safe-area-inset-bottom));
  }

  .page-app #returnToTopBtn {
    bottom: calc(84px + env(safe-area-inset-bottom)) !important;
    z-index: 1490 !important;
  }

  .page-app .workflow-picker,
  .page-app .source-radio-group,
  .page-app .config-grid,
  .page-app .billing-plans-grid,
  .page-app .billing-topups-grid {
    grid-template-columns: 1fr !important;
  }

  .page-app .workflow-card {
    min-height: 96px;
  }

  .page-app .config-surface {
    padding: 18px !important;
    border-radius: 17px !important;
  }

  .page-app .source-radio {
    min-height: 96px;
  }

  .page-app .generate-dock {
    bottom: auto;
    align-items: stretch;
    flex-direction: column;
  }

  .page-app .generate-dock #generationSummary {
    margin: 0 !important;
  }

  .page-app .generate-dock .btn-generate {
    width: 100%;
  }

  .page-app .export-bar,
  .page-app .view-header-actions,
  .page-app .bank-actions,
  .page-app .admin-row-actions {
    align-items: stretch !important;
    flex-direction: column !important;
    width: 100%;
  }

  .page-app .export-bar .btn,
  .page-app .view-header-actions .btn,
  .page-app .bank-actions .btn {
    width: 100%;
  }

  .modal-overlay,
  .app-modal-overlay,
  .inbox-modal-overlay,
  .sa-modal-backdrop {
    padding: 12px !important;
  }

  .page-system-admin .sa-app {
    padding: 0 12px 48px !important;
  }

  .page-system-admin .sa-topbar {
    position: relative !important;
    margin-inline: -12px !important;
    padding-inline: 12px !important;
  }

  .page-system-admin .sa-range {
    order: 3;
    width: 100%;
    overflow-x: auto;
  }

  .page-system-admin .sa-hero {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }

  .page-system-admin .sa-table-toolbar {
    align-items: stretch !important;
    flex-direction: column !important;
  }

  .page-system-admin .sa-card:has(.sa-table) {
    overflow-x: auto;
  }

  .page-system-admin .sa-table {
    min-width: 760px;
  }

  .page-landing .nav-header {
    padding-inline: 12px !important;
  }

  .page-landing .nav-links {
    display: none !important;
  }

  .page-landing .nav-hamburger {
    display: flex !important;
  }

  .page-landing .nav-mobile-overlay {
    background: rgba(245, 245, 247, 0.96) !important;
    backdrop-filter: blur(22px);
  }

  .page-landing .nav-mobile-overlay a {
    min-height: 44px;
    color: var(--text) !important;
    font-family: var(--font-body) !important;
    font-size: 19px !important;
    font-weight: 600 !important;
    letter-spacing: -0.01em !important;
    text-transform: none !important;
  }

  .page-landing .container {
    padding-inline: 18px !important;
  }

  .page-landing .hero {
    min-height: auto !important;
    padding: 142px 0 80px !important;
  }

  .page-landing .hero h1 {
    font-size: clamp(46px, 14vw, 68px) !important;
  }

  .page-landing .hero-ctas {
    align-items: stretch !important;
    flex-direction: column !important;
  }

  .page-landing .section-light,
  .page-landing .section-dark,
  .page-landing .cta-section {
    padding: 78px 0 !important;
  }

  .page-landing .value-cards,
  .page-landing .steps-grid,
  .page-landing .cap-grid,
  .page-landing .stats-grid,
  .page-landing .bib-grid,
  .page-landing .pricing-grid,
  .page-landing .topups-grid,
  .page-landing .ethos-grid {
    grid-template-columns: 1fr !important;
  }

  .page-login {
    align-items: flex-start !important;
    padding: 24px 16px 48px;
  }

  .page-login .plan-grid {
    grid-template-columns: 1fr !important;
  }

  .page-ocr {
    padding: 20px 12px 48px;
  }

  .page-ocr .form-row,
  .page-ocr .result-stats,
  .page-ocr .phase-steps {
    grid-template-columns: 1fr !important;
  }

  .page-ocr .btn-row {
    align-items: stretch;
    flex-direction: column;
  }

  .page-ocr .btn-row .btn {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .page-app .tab-bar {
    justify-content: flex-start;
    gap: 4px !important;
    overflow-x: auto;
    overflow-y: hidden;
    padding-inline: 8px !important;
    scroll-padding-inline: 8px;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .page-app .tab-bar::-webkit-scrollbar {
    display: none;
  }

  .page-app .tab-btn {
    flex: 0 0 auto;
    width: auto;
    min-width: 76px;
    padding-inline: 8px !important;
    font-size: 11px !important;
    line-height: 1.15;
    scroll-snap-align: start;
  }

  .page-app .tab-btn > span:not(.icon):not(.tab-badge) {
    display: block;
    width: auto;
    max-width: none;
    overflow: visible;
    text-align: center;
    white-space: nowrap;
  }
}

@media (max-width: 420px) {
  .page-app .brand-badge {
    font-size: 16px !important;
  }

  .page-app .top-bar-actions {
    gap: 2px !important;
  }

  .page-app .user-badge {
    max-width: 118px;
    overflow: hidden;
  }

  .page-app #userName {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .page-system-admin .sa-hero {
    grid-template-columns: 1fr !important;
  }

  .page-landing .hero h1 {
    font-size: 44px !important;
  }

  .page-login .login-card {
    padding: 20px !important;
  }

  .page-ocr #copyrightModal [style*="display:flex"] {
    flex-direction: column;
  }
}

@media (min-width: 761px) {
  .page-landing .nav-hamburger,
  .page-landing .nav-mobile-overlay {
    display: none !important;
  }
}

/* Dark appearance follows the operating system. The material uses a deep,
   neutral canvas with brighter glass edges so content remains legible without
   turning every panel into a flat black rectangle. */
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #090b10;
  --bg-elevated: #161921;
  --bg-card: #171a22;
  --bg-surface: #11141a;
  --surface: #171a22;
  --surface-0: #171a22;
  --surface-1: #1c2029;
  --surface-2: #222731;
  --surface-3: #343a46;
  --surface-lowest: #101218;
  --surface2: #222731;
  --surface3: #2a303b;
  --surface-hover: #252b36;
  --border: rgba(255, 255, 255, 0.13);
  --border-strong: rgba(255, 255, 255, 0.24);
  --border-bright: rgba(64, 156, 255, 0.58);
  --text: #f5f5f7;
  --text-primary: #f5f5f7;
  --text-secondary: #b7b7bf;
  --text-tertiary: #98989f;
  --text-muted: #98989f;
  --primary: #409cff;
  --primary-hover: #64d2ff;
  --primary-active: #0a84ff;
  --primary-rgb: 64, 156, 255;
  --focus-ring: #64d2ff;
  --primary-soft: rgba(64, 156, 255, 0.16);
  --accent: #409cff;
  --accent-hover: #64d2ff;
  --accent-ink: #ffffff;
  --status-ink: #111111;
  --accent-dim: rgba(64, 156, 255, 0.18);
  --accent-soft: rgba(64, 156, 255, 0.12);
  --accent-cyan: #409cff;
  --cyan: #409cff;
  --teal: #409cff;
  --green: #30d158;
  --lime: #30d158;
  --success: #30d158;
  --success-rgb: 48, 209, 88;
  --success-soft: rgba(48, 209, 88, 0.15);
  --lime-soft: rgba(48, 209, 88, 0.15);
  --amber: #ffd60a;
  --warning: #ffd60a;
  --warning-rgb: 255, 214, 10;
  --warning-soft: rgba(255, 214, 10, 0.14);
  --red: #ff6961;
  --error: #ff6961;
  --error-rgb: 255, 105, 97;
  --error-text: #ff9f9a;
  --error-soft: rgba(255, 105, 97, 0.14);
  --purple: #bf5af2;
  --tier-none: #52525a;
  --tier-lite: #0066cc;
  --tier-pro: #9a6700;
  --tier-departamento: #248a3d;
  --tier-decanatura: #007b80;
  --tier-institucional: #6e5bbd;
  --glass-surface: rgba(31, 35, 45, 0.72);
  --glass-surface-strong: rgba(38, 43, 55, 0.84);
  --glass-surface-soft: rgba(19, 22, 29, 0.64);
  --glass-edge: rgba(255, 255, 255, 0.16);
  --glass-edge-strong: rgba(255, 255, 255, 0.26);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.28), 0 5px 16px rgba(0, 0, 0, 0.22);
  --shadow-md: 0 12px 34px rgba(0, 0, 0, 0.34);
  --shadow-lg: 0 24px 70px rgba(0, 0, 0, 0.48);
  --glass-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.13),
    inset 0 -1px 0 rgba(255, 255, 255, 0.025),
    0 14px 42px rgba(0, 0, 0, 0.32),
    0 3px 10px rgba(0, 0, 0, 0.2);
  --glass-shadow-hover: inset 0 1px 0 rgba(255, 255, 255, 0.2),
    inset 0 -1px 0 rgba(255, 255, 255, 0.04),
    0 22px 56px rgba(0, 0, 0, 0.4),
    0 5px 15px rgba(0, 0, 0, 0.24);
}

:root[data-theme="dark"] body,
:root[data-theme="dark"] .page-app,
:root[data-theme="dark"] .page-system-admin,
:root[data-theme="dark"] .page-login,
:root[data-theme="dark"] .page-ocr,
:root[data-theme="dark"] .page-landing {
  background:
    radial-gradient(70rem 38rem at 4% -8%, rgba(10, 132, 255, 0.2), transparent 64%),
    radial-gradient(58rem 36rem at 102% 2%, rgba(64, 200, 224, 0.12), transparent 62%),
    radial-gradient(52rem 34rem at 72% 84%, rgba(191, 90, 242, 0.1), transparent 66%),
    linear-gradient(180deg, #090b10 0%, #0c0f15 48%, #0a0c11 100%) !important;
}

:root[data-theme="dark"] ::placeholder {
  color: #98989f !important;
}

:root[data-theme="dark"] :is(.apple-skip-link, .skip-link) {
  border-color: var(--glass-edge-strong) !important;
  background: #20242d !important;
  color: var(--text) !important;
}

:root[data-theme="dark"] .page-landing :is(.hero, .section-light) {
  border-color: rgba(255, 255, 255, 0.07) !important;
  background: rgba(20, 23, 30, 0.3) !important;
}

:root[data-theme="dark"] .page-landing :is(.section-dark, .cta-section) {
  border-color: rgba(255, 255, 255, 0.07) !important;
  background: rgba(8, 10, 15, 0.5) !important;
}

:root[data-theme="dark"] .page-landing .footer {
  background: rgba(14, 17, 23, 0.94) !important;
}

:root[data-theme="dark"] .page-app .top-bar,
:root[data-theme="dark"] .page-system-admin .sa-topbar {
  border-color: rgba(255, 255, 255, 0.11) !important;
  background: linear-gradient(180deg, rgba(29, 33, 43, 0.88), rgba(15, 18, 24, 0.7)) !important;
  box-shadow: inset 0 -1px 0 rgba(255, 255, 255, 0.06), 0 14px 40px rgba(0, 0, 0, 0.28) !important;
}

:root[data-theme="dark"] :is(
  .page-landing .nav-pill,
  .page-app .tab-bar,
  .page-app .generate-dock,
  .page-system-admin .sa-section-nav,
  .page-login .login-card,
  .page-ocr .mode-options,
  .page-landing .nav-mobile-overlay,
  .page-ocr #copyrightModal > div,
  .page-ocr #chapterModal > div,
  .modal-surface,
  .modal-card,
  .app-modal-card,
  .inbox-modal-card,
  .sa-modal,
  .sa-action-dialog,
  .toast
) {
  border-color: var(--glass-edge) !important;
  background: linear-gradient(145deg, var(--glass-surface-strong), var(--glass-surface-soft)) !important;
  background-image: linear-gradient(145deg, var(--glass-surface-strong), var(--glass-surface-soft)) !important;
  box-shadow: var(--glass-shadow) !important;
}

:root[data-theme="dark"] :is(.page-login .mode-toggle, .page-system-admin .sa-range) {
  border-color: var(--border) !important;
  background: rgba(10, 12, 17, 0.62) !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.07), 0 1px 5px rgba(0, 0, 0, 0.28) !important;
}

:root[data-theme="dark"] .page-app :is(
  .config-surface,
  .welcome-card,
  .q-card,
  .question-card,
  .bank-card,
  .billing-plan-card,
  .billing-topup-card,
  .rf-card,
  .library-card,
  .exam-surface,
  .status-bar,
  .export-meta-row,
  .generate-dock
),
:root[data-theme="dark"] .page-system-admin :is(
  .sa-kpi,
  .sa-card,
  .sa-tile,
  .sa-sec-check,
  .sa-sec-stat,
  .sa-model-row,
  .sa-job-diagnostic,
  .sa-account-controls
),
:root[data-theme="dark"] .page-landing :is(
  .value-card,
  .step-card,
  .cap-card,
  .stats-card,
  .bib-card,
  .alt-flow-card,
  .price-card,
  .topup-card
),
:root[data-theme="dark"] .page-login :is(.login-card, .plan-card),
:root[data-theme="dark"] .page-ocr :is(
  .card,
  .result-wrap,
  .progress-wrap,
  .cost-banner,
  .stat-box,
  .job-item,
  .chapter-item
),
:root[data-theme="dark"] :is(
  .modal-surface,
  .modal-card,
  .app-modal-card,
  .inbox-modal-card,
  .sa-modal,
  .sa-action-dialog,
  .toast
) {
  border-color: var(--glass-edge) !important;
  background: linear-gradient(145deg, rgba(32, 36, 46, 0.96), rgba(18, 21, 28, 0.92)) !important;
  background-image: linear-gradient(145deg, rgba(32, 36, 46, 0.96), rgba(18, 21, 28, 0.92)) !important;
  color: var(--text) !important;
  box-shadow: var(--glass-shadow) !important;
}

:root[data-theme="dark"] .page-app :is(.active-exam-ribbon, .ai-disclaimer, .quota-banner, .generation-limit-notice, .rf-active-banner),
:root[data-theme="dark"] .page-system-admin :is(.sa-alert, .sa-scope-notice),
:root[data-theme="dark"] .page-ocr .engine-badge {
  border-color: rgba(255, 255, 255, 0.14) !important;
  background: linear-gradient(145deg, rgba(31, 35, 45, 0.94), rgba(var(--primary-rgb), 0.14)) !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 9px 26px rgba(0, 0, 0, 0.24) !important;
}

:root[data-theme="dark"] .page-app :is(.workflow-card, .source-radio, .topic-mode-option, .source-book-picker, .toggle-row, .config-details, .q-opt, .preview-opt),
:root[data-theme="dark"] .page-ocr :is(.dropzone, .file-item, .result-preview, .bib-item),
:root[data-theme="dark"] .page-system-admin .sa-card-head,
:root[data-theme="dark"] :is(
  .neu-select,
  .neu-input,
  .neu-textarea,
  .page-login input,
  .page-ocr input,
  .page-ocr select,
  .sa-table-toolbar input[type="search"],
  .sa-action-dialog input,
  .sa-action-dialog textarea
) {
  border-color: var(--border) !important;
  background: rgba(10, 12, 17, 0.68) !important;
  color: var(--text) !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), 0 1px 4px rgba(0, 0, 0, 0.28) !important;
}

:root[data-theme="dark"] .page-app :is(.workflow-card.workflow-active, .source-radio-active, .billing-plan-card.current),
:root[data-theme="dark"] .page-login .plan-card.selected,
:root[data-theme="dark"] .page-ocr .mode-btn.active {
  border-color: rgba(var(--primary-rgb), 0.58) !important;
  background: linear-gradient(145deg, rgba(32, 36, 46, 0.92), rgba(var(--primary-rgb), 0.2)) !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14), 0 11px 30px rgba(0, 0, 0, 0.28) !important;
}

:root[data-theme="dark"] .btn:not(:where(.btn-primary, .btn-generate, .login-btn, .btn-danger-subtle, .btn-export-primary, .btn-confirm)),
:root[data-theme="dark"] .mode-btn:not(.active),
:root[data-theme="dark"] .price-btn:not(.featured .price-btn),
:root[data-theme="dark"] .btn-bracket:not(:first-child),
:root[data-theme="dark"] .page-ocr #copyrightDecline {
  border-color: var(--border) !important;
  background: linear-gradient(145deg, rgba(39, 44, 55, 0.94), rgba(23, 26, 34, 0.9)) !important;
  color: var(--text) !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 8px 20px rgba(0, 0, 0, 0.25) !important;
}

:root[data-theme="dark"] :is(
  .btn-primary,
  .btn-generate,
  .login-btn,
  .btn-export-primary,
  .btn-confirm,
  .page-ocr .btn-primary,
  .page-landing .price-card.featured .price-btn,
  .page-landing .btn-filled,
  .page-landing .hero-ctas .btn-bracket:first-child,
  .page-landing .nav-links .nav-cta
) {
  border-color: rgba(100, 210, 255, 0.34) !important;
  background: linear-gradient(180deg, #0077ed, #0066cc) !important;
  color: #ffffff !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.28), 0 11px 27px rgba(0, 83, 182, 0.38) !important;
}

:root[data-theme="dark"] .page-app .tab-btn.active,
:root[data-theme="dark"] .page-system-admin .sa-section-nav button[aria-pressed="true"],
:root[data-theme="dark"] .page-system-admin .sa-section-nav button[aria-selected="true"],
:root[data-theme="dark"] .page-login .mode-toggle button.active {
  background: linear-gradient(180deg, #0077ed, #0066cc) !important;
  color: #ffffff !important;
}

:root[data-theme="dark"] .page-system-admin :is(.sa-range button.sa-range-active, .sa-filter-pill.sa-filter-active) {
  background: #343a46 !important;
  color: var(--text) !important;
  box-shadow: 0 1px 5px rgba(0, 0, 0, 0.42) !important;
}

:root[data-theme="dark"] .page-app :is(.active-exam-badge, .empty, .skeleton-card),
:root[data-theme="dark"] .page-app :where(.billing-table, .admin-table, table) td {
  border-color: var(--border) !important;
  background: #171a22 !important;
  color: var(--text) !important;
}

:root[data-theme="dark"] .page-app .source-radio:not(.source-radio-active):hover {
  background: #222731 !important;
}

:root[data-theme="dark"] .page-app .source-radio-dot {
  background: #171a22 !important;
}

:root[data-theme="dark"] .page-app .source-radio-active .source-radio-dot {
  background: var(--primary) !important;
  box-shadow: inset 0 0 0 4px #171a22 !important;
}

:root[data-theme="dark"] :is(.modal-overlay, .app-modal-overlay, .inbox-modal-overlay, .sa-modal-backdrop) {
  background: rgba(0, 0, 0, 0.64) !important;
}

@media (prefers-reduced-transparency: reduce) {
  :root {
    --glass-surface: #ffffff;
    --glass-surface-strong: #ffffff;
    --glass-surface-soft: #ffffff;
  }

  .page-app,
  .page-system-admin,
  .page-login,
  .page-ocr,
  .page-landing {
    background: #f5f5f7 !important;
  }

  .page-app *,
  .page-system-admin *,
  .page-login *,
  .page-ocr *,
  .page-landing * {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  .page-system-admin .sa-action-dialog::backdrop {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  .page-app :is(
    .top-bar, .tab-bar, .generate-dock, .config-surface, .welcome-card,
    .q-card, .question-card, .bank-card, .billing-plan-card,
    .billing-topup-card, .rf-card, .library-card, .exam-surface
  ),
  .page-system-admin :is(
    .sa-topbar, .sa-section-nav, .sa-range, .sa-kpi, .sa-card, .sa-tile,
    .sa-sec-check, .sa-sec-stat, .sa-model-row, .sa-job-diagnostic
  ),
  .page-landing :is(
    .nav-pill, .nav-mobile-overlay, .value-card, .step-card, .cap-card,
    .stats-card, .bib-card, .alt-flow-card, .price-card, .topup-card, .footer
  ),
  .page-login :is(.mode-toggle, .login-card, .plan-card),
  .page-ocr :is(.mode-options, .card, .result-wrap, .progress-wrap, .cost-banner, .stat-box, .job-item, .chapter-item),
  :is(.modal-surface, .modal-card, .app-modal-card, .inbox-modal-card, .sa-modal, .sa-action-dialog, .toast) {
    background: #ffffff !important;
    background-image: none !important;
  }

  .page-landing :is(.hero, .section-light, .section-dark, .cta-section) {
    background: #f5f5f7 !important;
  }

  :root[data-theme="dark"] {
    --glass-surface: #171a22;
    --glass-surface-strong: #1c2029;
    --glass-surface-soft: #171a22;
  }

  :root[data-theme="dark"] :is(
    .page-app,
    .page-system-admin,
    .page-login,
    .page-ocr,
    .page-landing,
    .page-landing .hero,
    .page-landing .section-light,
    .page-landing .section-dark,
    .page-landing .cta-section
  ) {
    background: #090b10 !important;
  }

  :root[data-theme="dark"] .page-app :is(
    .top-bar, .tab-bar, .generate-dock, .config-surface, .welcome-card,
    .q-card, .question-card, .bank-card, .billing-plan-card,
    .billing-topup-card, .rf-card, .library-card, .exam-surface
  ),
  :root[data-theme="dark"] .page-system-admin :is(
    .sa-topbar, .sa-section-nav, .sa-range, .sa-kpi, .sa-card, .sa-tile,
    .sa-sec-check, .sa-sec-stat, .sa-model-row, .sa-job-diagnostic
  ),
  :root[data-theme="dark"] .page-landing :is(
    .nav-pill, .nav-mobile-overlay, .value-card, .step-card, .cap-card,
    .stats-card, .bib-card, .alt-flow-card, .price-card, .topup-card, .footer
  ),
  :root[data-theme="dark"] .page-login :is(.mode-toggle, .login-card, .plan-card),
  :root[data-theme="dark"] .page-ocr :is(.mode-options, .card, .result-wrap, .progress-wrap, .cost-banner, .stat-box, .job-item, .chapter-item),
  :root[data-theme="dark"] :is(.modal-surface, .modal-card, .app-modal-card, .inbox-modal-card, .sa-modal, .sa-action-dialog, .toast) {
    background: #171a22 !important;
    background-image: none !important;
  }
}

@media (prefers-contrast: more) {
  :root {
    --glass-edge: rgba(0, 0, 0, 0.34);
    --glass-edge-strong: rgba(0, 0, 0, 0.5);
  }

  .page-app *,
  .page-system-admin *,
  .page-login *,
  .page-ocr *,
  .page-landing * {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  .page-system-admin .sa-action-dialog::backdrop {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  .page-app :is(.workflow-card, .source-radio, .topic-mode-option, .source-book-picker, .toggle-row, .config-details, .q-opt, .preview-opt),
  .page-ocr :is(.dropzone, .file-item, .result-preview, .bib-item),
  .neu-select,
  .neu-input,
  .neu-textarea,
  .page-login input,
  .page-ocr input,
  .page-ocr select,
  .sa-table-toolbar input[type="search"],
  .sa-action-dialog input,
  .sa-action-dialog textarea,
  .btn:not(:where(.btn-primary, .btn-generate, .login-btn, .btn-danger-subtle, .btn-export-primary, .btn-confirm)),
  .mode-btn:not(.active),
  .price-card:not(.featured) .price-btn,
  .btn-bracket:not(:first-child) {
    border-color: rgba(0, 0, 0, 0.48) !important;
  }

  .page-app :is(.top-bar, .tab-bar, .generate-dock, .config-surface),
  .page-system-admin :is(.sa-topbar, .sa-section-nav, .sa-card, .sa-kpi),
  .page-landing :is(.nav-pill, .value-card, .price-card),
  .page-login :is(.mode-toggle, .login-card),
  .page-ocr :is(.mode-options, .card),
  :is(.modal-surface, .modal-card, .app-modal-card, .inbox-modal-card, .sa-modal, .sa-action-dialog, .toast) {
    border-color: var(--glass-edge) !important;
    background: #ffffff !important;
    background-image: none !important;
  }

  :root[data-theme="dark"] {
    --glass-edge: rgba(255, 255, 255, 0.42);
    --glass-edge-strong: rgba(255, 255, 255, 0.62);
  }

  :root[data-theme="dark"] .page-app :is(.workflow-card, .source-radio, .topic-mode-option, .source-book-picker, .toggle-row, .config-details, .q-opt, .preview-opt),
  :root[data-theme="dark"] .page-ocr :is(.dropzone, .file-item, .result-preview, .bib-item),
  :root[data-theme="dark"] :is(
    .neu-select,
    .neu-input,
    .neu-textarea,
    .page-login input,
    .page-ocr input,
    .page-ocr select,
    .sa-table-toolbar input[type="search"],
    .sa-action-dialog input,
    .sa-action-dialog textarea
  ) {
    border-color: rgba(255, 255, 255, 0.52) !important;
  }

  :root[data-theme="dark"] .page-app :is(.top-bar, .tab-bar, .generate-dock, .config-surface),
  :root[data-theme="dark"] .page-system-admin :is(.sa-topbar, .sa-section-nav, .sa-card, .sa-kpi),
  :root[data-theme="dark"] .page-landing :is(.nav-pill, .value-card, .price-card),
  :root[data-theme="dark"] .page-login :is(.mode-toggle, .login-card),
  :root[data-theme="dark"] .page-ocr :is(.mode-options, .card),
  :root[data-theme="dark"] :is(.modal-surface, .modal-card, .app-modal-card, .inbox-modal-card, .sa-modal, .sa-action-dialog, .toast) {
    border-color: var(--glass-edge) !important;
    background: #171a22 !important;
    background-image: none !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto !important;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .page-app :is(.workflow-card, .source-radio, .topic-mode-option, .source-book-picker, .toggle-row, .config-details, .q-opt, .preview-opt),
  .page-ocr :is(.dropzone, .file-item, .result-preview, .bib-item),
  .page-system-admin .sa-card-head,
  .neu-select,
  .neu-input,
  .neu-textarea,
  .page-login input,
  .page-ocr input,
  .page-ocr select,
  .sa-table-toolbar input[type="search"],
  .sa-action-dialog input,
  .sa-action-dialog textarea,
  .btn,
  .mode-btn,
  .price-btn,
  .btn-bracket,
  .btn-filled,
  .page-landing .nav-links a,
  .page-app .btn-icon,
  .page-system-admin .sa-icon-button,
  .page-login .password-toggle,
  .page-app .tab-btn,
  .page-system-admin .sa-section-nav button,
  .page-login .mode-toggle button,
  .page-ocr .progress-bar-fill,
  .progress-fill,
  .usage-bar-fill {
    transition: none !important;
  }

  .page-login .login-container,
  .page-ocr .app-wrap,
  .page-system-admin :is(#saAuthBlock, #saContent),
  .page-app .view.active,
  .page-system-admin [data-sa-panel]:not([hidden]),
  :is(.modal-surface, .modal-card, .app-modal-card, .inbox-modal-card, .sa-modal, .sa-action-dialog[open]),
  .page-ocr :is(#copyrightModal[open], #chapterModal[open]) > div,
  .toast:not(.toast-closing),
  .toast.toast-closing,
  .app-modal-closing .app-modal-card {
    animation: none !important;
  }

  .page-landing :is(.value-card, .step-card, .cap-card, .stats-card, .bib-card, .alt-flow-card, .price-card, .topup-card):hover,
  .page-app :is(.workflow-card, .billing-plan-card:not(.current), .billing-topup-card, .source-radio):hover,
  .btn:not(:disabled):hover,
  .mode-btn:not(:disabled):hover,
  .price-btn:not(:disabled):hover,
  .btn-bracket:not(:disabled):hover,
  .page-app .tab-btn:not(:disabled):hover,
  .page-system-admin .sa-section-nav button:not(:disabled):hover,
  .page-landing .nav-links a:hover,
  :is(.btn, .btn-generate, .login-btn, .mode-btn, .price-btn, .btn-bracket, .btn-filled, .tab-btn):not(:disabled):active {
    transform: none !important;
  }
}

@media (forced-colors: active) {
  .page-app *,
  .page-system-admin *,
  .page-login *,
  .page-ocr *,
  .page-landing * {
    background-image: none !important;
    box-shadow: none !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  .page-system-admin .sa-action-dialog::backdrop {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  :where(button, a, input, select, textarea, summary):focus-visible {
    outline: 3px solid CanvasText !important;
  }

  .page-app .tab-btn:focus-visible,
  .page-system-admin .sa-section-nav button:focus-visible,
  .page-system-admin .sa-range button:focus-visible,
  .page-login .mode-toggle button:focus-visible {
    outline: 3px solid CanvasText !important;
    outline-offset: 0 !important;
  }

  .page-app .tab-btn.active,
  .page-system-admin .sa-section-nav button[aria-pressed="true"],
  .page-system-admin .sa-section-nav button[aria-selected="true"],
  .page-login .mode-toggle button.active,
  .page-app .workflow-card[aria-pressed="true"],
  .page-app .source-radio-active,
  .page-app .billing-plan-card.current,
  .page-app .btn[aria-pressed="true"],
  .page-login .plan-card[aria-pressed="true"],
  .page-ocr .mode-btn[aria-pressed="true"],
  .page-system-admin .sa-range button[aria-pressed="true"],
  .page-system-admin .sa-filter-pill[aria-pressed="true"],
  .btn-primary,
  .btn-generate,
  .login-btn {
    border: 2px solid Highlight !important;
    background: Highlight !important;
    color: HighlightText !important;
  }

  .page-app,
  .page-system-admin,
  .page-login,
  .page-ocr,
  .page-landing,
  .page-landing :is(.hero, .section-light, .section-dark, .cta-section, .footer) {
    background: Canvas !important;
    background-image: none !important;
    box-shadow: none !important;
  }

  .page-app :is(
    .top-bar, .tab-bar, .generate-dock, .config-surface, .welcome-card,
    .q-card, .question-card, .bank-card, .billing-plan-card,
    .billing-topup-card, .rf-card, .library-card, .exam-surface,
    .status-bar, .export-meta-row, .active-exam-ribbon, .ai-disclaimer,
    .quota-banner, .generation-limit-notice, .rf-active-banner
  ),
  .page-system-admin :is(
    .sa-topbar, .sa-section-nav, .sa-range, .sa-kpi, .sa-card, .sa-tile,
    .sa-sec-check, .sa-sec-stat, .sa-model-row, .sa-job-diagnostic,
    .sa-account-controls, .sa-alert, .sa-scope-notice
  ),
  .page-landing :is(
    .nav-pill, .nav-mobile-overlay, .value-card, .step-card, .cap-card,
    .stats-card, .bib-card, .alt-flow-card, .price-card, .topup-card
  ),
  .page-login :is(.login-card, .mode-toggle, .plan-card),
  .page-ocr :is(
    .mode-options, .card, .result-wrap, .progress-wrap, .cost-banner,
    .stat-box, .job-item, .chapter-item, .engine-badge
  ),
  .page-ocr #copyrightModal > div,
  .page-ocr #chapterModal > div,
  :is(.modal-surface, .modal-card, .app-modal-card, .inbox-modal-card, .sa-modal, .sa-action-dialog, .toast) {
    border-color: CanvasText !important;
    background: Canvas !important;
    background-image: none !important;
    box-shadow: none !important;
    color: CanvasText !important;
  }

  .neu-select {
    appearance: auto !important;
    -webkit-appearance: menulist !important;
    background-image: none !important;
  }
}

@media print {
  .top-bar,
  .tab-bar,
  .generate-dock,
  .nav-header,
  .nav-mobile-overlay,
  .toast-container,
  .btn,
  button {
    display: none !important;
  }

  body,
  .page-app,
  .page-system-admin,
  .page-ocr,
  .page-login,
  .page-landing {
    padding: 0 !important;
    background: #ffffff !important;
    color: #000000 !important;
  }

  .page-app *,
  .page-system-admin *,
  .page-login *,
  .page-ocr *,
  .page-landing * {
    background-image: none !important;
    box-shadow: none !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  .page-app :is(
    .top-bar, .tab-bar, .generate-dock, .config-surface, .welcome-card,
    .q-card, .question-card, .bank-card, .billing-plan-card,
    .billing-topup-card, .rf-card, .library-card, .exam-surface,
    .status-bar, .export-meta-row, .active-exam-ribbon, .ai-disclaimer,
    .quota-banner, .generation-limit-notice, .rf-active-banner
  ),
  .page-system-admin :is(
    .sa-topbar, .sa-section-nav, .sa-range, .sa-kpi, .sa-card, .sa-tile,
    .sa-sec-check, .sa-sec-stat, .sa-model-row, .sa-job-diagnostic,
    .sa-account-controls, .sa-alert, .sa-scope-notice
  ),
  .page-landing :is(
    .nav-pill, .nav-mobile-overlay, .value-card, .step-card, .cap-card,
    .stats-card, .bib-card, .alt-flow-card, .price-card, .topup-card, .footer
  ),
  .page-login :is(.login-card, .mode-toggle, .plan-card),
  .page-ocr :is(
    .mode-options, .card, .result-wrap, .progress-wrap, .cost-banner,
    .stat-box, .job-item, .chapter-item, .engine-badge
  ),
  .page-ocr #copyrightModal > div,
  .page-ocr #chapterModal > div,
  :is(.modal-surface, .modal-card, .app-modal-card, .inbox-modal-card, .sa-modal, .sa-action-dialog, .toast) {
    background: #ffffff !important;
    background-image: none !important;
    box-shadow: none !important;
  }

  .page-system-admin .sa-action-dialog::backdrop {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  .page-landing [data-motion],
  .page-landing [data-motion-stagger],
  .page-landing [data-motion-stagger] > * {
    opacity: 1 !important;
    transform: none !important;
    animation: none !important;
    transition: none !important;
  }
}