/* ==========================================================================
   TOOLKIT — Architectural Specification of Apple Design Systems
   Human Interface Principles: Clarity, Deference, Depth, Consistency
   Dynamic Semantic Tokens, Sub-10ms Feedback, SF Pro Typography
   ========================================================================== */

/* ── DYNAMIC SEMANTIC COLOR ARCHITECTURE ── */
:root {
  /* Dynamic Semantic System Colors */
  --sf-system-blue:   #0071E3;
  --sf-system-green:  #34C759;
  --sf-system-red:    #FF3B30;
  --sf-system-orange: #FF9500;
  --sf-system-yellow: #FFCC00;
  --sf-system-teal:   #5AC8FA;
  --sf-system-indigo: #5856D6;
  --sf-system-purple: #AF52DE;
  --sf-system-pink:   #FF2D55;

  /* Semantic Labels (WCAG AAA/AA Compliant) */
  --sf-label-primary:   #1D1D1F;
  --sf-label-secondary: rgba(0, 0, 0, 0.55);
  --sf-label-tertiary:  rgba(0, 0, 0, 0.35);
  --sf-label-quaternary:rgba(0, 0, 0, 0.18);

  /* Backgrounds & Grouped Containers */
  --sf-bg-primary:    #FFFFFF;
  --sf-bg-secondary:  #F5F5F7;
  --sf-bg-tertiary:   #E8E8ED;
  --sf-bg-grouped:    #F5F5F7;
  --sf-surface:       #FFFFFF;
  --sf-surface-elevated: #FFFFFF;

  /* Materials & Borders */
  --sf-separator:     rgba(60, 60, 67, 0.12);
  --sf-border:        rgba(0, 0, 0, 0.08);
  --sf-border-subtle: rgba(0, 0, 0, 0.04);
  --sf-material-nav:  rgba(245, 245, 247, 0.82);
  --sf-material-card: rgba(255, 255, 255, 0.95);

  /* Layering & Depth */
  --sf-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --sf-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06), 0 2px 4px rgba(0, 0, 0, 0.03);
  --sf-shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.04);
  --sf-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.09), 0 2px 6px rgba(0, 0, 0, 0.04);

  /* Apple Squircle Radii */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 9999px;

  /* Typography Stack */
  --font-sf: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "SF Pro", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", Menlo, Monaco, Consolas, "Liberation Mono", monospace;

  /* Easing Kinetics (Apple standard physical curve) */
  --ease-apple: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --anim-fast: 0.15s var(--ease-apple);
  --anim-base: 0.22s var(--ease-apple);
  --anim-smooth: 0.35s var(--ease-apple);

  /* Backward Compatibility Aliases */
  --bg: var(--sf-bg-secondary);
  --surface: var(--sf-surface);
  --text: var(--sf-label-primary);
  --sub: var(--sf-label-secondary);
  --border: var(--sf-border);
  --font: var(--font-sf);
  --shadow-sm: var(--sf-shadow-sm);
  --shadow-md: var(--sf-shadow-md);
  --shadow-lg: var(--sf-shadow-lg);
  --radius-md: 14px;
  --accent-blue: var(--sf-system-blue);
  --accent-purple: var(--sf-system-purple);
  --accent-green: var(--sf-system-green);
  --accent-orange: var(--sf-system-orange);
  --accent-rose: var(--sf-system-red);
  --accent-teal: var(--sf-system-teal);
}

/* ── DARK APPEARANCE MODE (Semantic Inversion) ── */
[data-theme="dark"],
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --sf-system-blue:   #0A84FF;
    --sf-system-green:  #30D158;
    --sf-system-red:    #FF453A;
    --sf-system-orange: #FF9F0A;
    --sf-system-yellow: #FFD60A;
    --sf-system-teal:   #64D2FF;
    --sf-system-indigo: #5E5CE6;
    --sf-system-purple: #BF5AF2;
    --sf-system-pink:   #FF375F;

    --sf-label-primary:   #FFFFFF;
    --sf-label-secondary: rgba(255, 255, 255, 0.60);
    --sf-label-tertiary:  rgba(255, 255, 255, 0.40);
    --sf-label-quaternary:rgba(255, 255, 255, 0.20);

    --sf-bg-primary:    #000000;
    --sf-bg-secondary:  #1C1C1E;
    --sf-bg-tertiary:   #2C2C2E;
    --sf-bg-grouped:    #000000;
    --sf-surface:       #1C1C1E;
    --sf-surface-elevated: #2C2C2E;

    --sf-separator:     rgba(84, 84, 88, 0.35);
    --sf-border:        rgba(255, 255, 255, 0.12);
    --sf-border-subtle: rgba(255, 255, 255, 0.06);
    --sf-material-nav:  rgba(28, 28, 30, 0.82);
    --sf-material-card: rgba(28, 28, 30, 0.92);

    --sf-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
    --sf-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.55);
    --sf-shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.7);
    --sf-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.65);

    --bg: var(--sf-bg-secondary);
    --surface: var(--sf-surface);
    --text: var(--sf-label-primary);
    --sub: var(--sf-label-secondary);
    --border: var(--sf-border);
  }
}

[data-theme="dark"] {
  --sf-system-blue:   #0A84FF;
  --sf-system-green:  #30D158;
  --sf-system-red:    #FF453A;
  --sf-system-orange: #FF9F0A;
  --sf-system-yellow: #FFD60A;
  --sf-system-teal:   #64D2FF;
  --sf-system-indigo: #5E5CE6;
  --sf-system-purple: #BF5AF2;
  --sf-system-pink:   #FF375F;

  --sf-label-primary:   #FFFFFF;
  --sf-label-secondary: rgba(255, 255, 255, 0.60);
  --sf-label-tertiary:  rgba(255, 255, 255, 0.40);
  --sf-label-quaternary:rgba(255, 255, 255, 0.20);

  --sf-bg-primary:    #000000;
  --sf-bg-secondary:  #1C1C1E;
  --sf-bg-tertiary:   #2C2C2E;
  --sf-bg-grouped:    #000000;
  --sf-surface:       #1C1C1E;
  --sf-surface-elevated: #2C2C2E;

  --sf-separator:     rgba(84, 84, 88, 0.35);
  --sf-border:        rgba(255, 255, 255, 0.12);
  --sf-border-subtle: rgba(255, 255, 255, 0.06);
  --sf-material-nav:  rgba(28, 28, 30, 0.82);
  --sf-material-card: rgba(28, 28, 30, 0.92);

  --sf-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --sf-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.55);
  --sf-shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.7);
  --sf-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.65);

  --bg: var(--sf-bg-secondary);
  --surface: var(--sf-surface);
  --text: var(--sf-label-primary);
  --sub: var(--sf-label-secondary);
  --border: var(--sf-border);
}

/* ── BASE & GLOBAL RESETS ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sf);
  background-color: var(--sf-bg-secondary);
  color: var(--sf-label-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.47059;
  letter-spacing: -0.022em;
  transition: background-color var(--anim-base), color var(--anim-base);
}

/* ── NAVIGATION (Frosted Glass & Deference) ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--sf-material-nav);
  backdrop-filter: saturate(190%) blur(25px);
  -webkit-backdrop-filter: saturate(190%) blur(25px);
  border-bottom: 0.5px solid var(--sf-separator);
  transition: all var(--anim-base);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 max(24px, env(safe-area-inset-right)) 0 max(24px, env(safe-area-inset-left));
  height: 52px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--sf-label-primary);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.025em;
  flex-shrink: 0;
  transition: opacity var(--anim-fast);
}
.logo:hover { opacity: 0.82; }
.logo-icon { font-size: 18px; }
.logo-text { font-weight: 600; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-links::-webkit-scrollbar { display: none; }

.nav-pill {
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: var(--font-sf);
  font-size: 13px;
  font-weight: 500;
  color: var(--sf-label-secondary);
  padding: 6px 14px;
  min-height: 32px;
  border-radius: var(--radius-pill);
  transition: all var(--anim-fast);
  letter-spacing: -0.015em;
  white-space: nowrap;
  user-select: none;
}
.nav-pill:hover {
  color: var(--sf-label-primary);
  background: rgba(120, 120, 128, 0.08);
}
.nav-pill:active {
  transform: scale(0.96);
}
.nav-pill.active {
  background: var(--sf-label-primary);
  color: var(--sf-bg-primary);
  font-weight: 600;
  box-shadow: var(--sf-shadow-sm);
}

.nav-back {
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  cursor: pointer;
  font-family: var(--font-sf);
  font-size: 13px;
  font-weight: 500;
  color: var(--sf-label-primary);
  padding: 6px 16px;
  min-height: 34px;
  border-radius: var(--radius-pill);
  transition: all var(--anim-fast);
  letter-spacing: -0.015em;
  display: inline-flex;
  align-items: center;
  box-shadow: var(--sf-shadow-sm);
}
.nav-back:hover {
  background: var(--sf-bg-tertiary);
  transform: translateY(-1px);
}
.nav-back:active {
  transform: scale(0.96);
}

.nav-theme-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--sf-label-secondary);
  font-size: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--anim-fast);
  flex-shrink: 0;
}
.nav-theme-btn:hover {
  background: rgba(120, 120, 128, 0.1);
  color: var(--sf-label-primary);
}
.nav-theme-btn:active {
  transform: scale(0.92);
}

/* ── HERO SECTION (Clarity & Scale) ── */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 72px 24px 40px;
  text-align: center;
}

.hero-eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--sf-system-blue);
  margin-bottom: 12px;
}

.hero-title {
  font-size: clamp(38px, 6vw, 64px);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.05;
  color: var(--sf-label-primary);
  margin-bottom: 18px;
}

.hero-sub {
  font-size: 18px;
  color: var(--sf-label-secondary);
  line-height: 1.5;
  max-width: 540px;
  margin: 0 auto 36px;
  font-weight: 400;
  letter-spacing: -0.015em;
}

/* ── SEARCH BAR (Minimalist Focus Ring) ── */
.hero-search {
  position: relative;
  max-width: 440px;
  margin: 0 auto;
}

.search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  color: var(--sf-label-tertiary);
  pointer-events: none;
}

.search-field {
  width: 100%;
  padding: 14px 44px 14px 44px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--sf-border);
  background: var(--sf-surface);
  font-family: var(--font-sf);
  font-size: 15px;
  color: var(--sf-label-primary);
  box-shadow: var(--sf-shadow-sm);
  outline: none;
  transition: all var(--anim-fast);
}
.search-field:focus {
  border-color: var(--sf-system-blue);
  box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.18), var(--sf-shadow-sm);
  background: var(--sf-surface-elevated);
}
.search-field::placeholder {
  color: var(--sf-label-tertiary);
}
.search-shortcut {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 11px;
  font-weight: 600;
  color: var(--sf-label-tertiary);
  background: var(--sf-bg-secondary);
  border: 1px solid var(--sf-border);
  border-radius: 6px;
  padding: 2px 7px;
  pointer-events: none;
  font-family: var(--font-mono);
}

/* ── SECTION LABELS ── */
.section-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sf-label-secondary);
  margin-bottom: 16px;
}

/* ── FEATURED CARDS (Visual Mechanics & Depth) ── */
.featured-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 48px;
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
@media (max-width: 700px) {
  .featured-grid { grid-template-columns: 1fr; }
}

.feat-card {
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  cursor: pointer;
  transition: all var(--anim-base);
  position: relative;
  overflow: hidden;
  box-shadow: var(--sf-shadow-sm);
  user-select: none;
}
.feat-card::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--anim-base);
  border-radius: inherit;
}
.feat-bg::before       { background: linear-gradient(135deg, rgba(175, 82, 222, 0.06), transparent 70%); }
.feat-pdf::before      { background: linear-gradient(135deg, rgba(255, 149, 0, 0.06), transparent 70%); }
.feat-qr::before       { background: linear-gradient(135deg, rgba(52, 199, 89, 0.06), transparent 70%); }
.feat-compress::before { background: linear-gradient(135deg, rgba(0, 113, 227, 0.06), transparent 70%); }

.feat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--sf-shadow-hover);
  border-color: rgba(0, 0, 0, 0.12);
}
.feat-card:hover::before { opacity: 1; }
.feat-card:active {
  transform: scale(0.98);
}

.feat-icon {
  font-size: 28px;
  width: 52px;
  height: 52px;
  background: var(--sf-bg-secondary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.feat-info { flex: 1; }
.feat-info h3 {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 3px;
  color: var(--sf-label-primary);
}
.feat-info p {
  font-size: 13px;
  color: var(--sf-label-secondary);
  line-height: 1.4;
}
.feat-arrow {
  font-size: 15px;
  color: var(--sf-label-tertiary);
  flex-shrink: 0;
  transition: transform var(--anim-fast);
}
.feat-card:hover .feat-arrow {
  transform: translateX(3px);
  color: var(--sf-label-primary);
}

/* ── ALL TOOLS GRID ── */
.tools-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 14px;
}
@media (max-width: 520px) {
  .tools-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
}

.tool-card {
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-md);
  padding: 20px 18px;
  cursor: pointer;
  transition: all var(--anim-base);
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
  box-shadow: var(--sf-shadow-sm);
  user-select: none;
}
.tool-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--sf-shadow-hover);
  border-color: rgba(0, 0, 0, 0.12);
}
.tool-card:active {
  transform: scale(0.975);
}

.tool-card-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: var(--sf-label-primary);
  color: var(--sf-bg-primary);
  padding: 2px 7px;
  border-radius: var(--radius-pill);
}

.tool-card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  transition: transform var(--anim-fast);
}
.tool-card:hover .tool-card-icon {
  transform: scale(1.05);
}

.tool-card h4 {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.3;
  color: var(--sf-label-primary);
}
.tool-card p {
  font-size: 12px;
  color: var(--sf-label-secondary);
  line-height: 1.4;
}

/* ── SEMANTIC ICON COLOR CONTAINERS ── */
.ic-blue   { background: rgba(0, 113, 227, 0.10); color: var(--sf-system-blue); }
.ic-purple { background: rgba(175, 82, 222, 0.10); color: var(--sf-system-purple); }
.ic-green  { background: rgba(52, 199, 89, 0.10); color: var(--sf-system-green); }
.ic-orange { background: rgba(255, 149, 0, 0.10); color: var(--sf-system-orange); }
.ic-rose   { background: rgba(255, 59, 48, 0.10); color: var(--sf-system-red); }
.ic-teal   { background: rgba(90, 200, 250, 0.12); color: var(--sf-system-teal); }
.ic-gray   { background: rgba(120, 120, 128, 0.10); color: var(--sf-label-secondary); }
.ic-amber  { background: rgba(255, 204, 0, 0.14); color: var(--sf-system-yellow); }
.ic-indigo { background: rgba(88, 86, 214, 0.10); color: var(--sf-system-indigo); }

/* ── SVG ICONS STYLING ── */
.svg-icon {
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
  stroke: currentColor;
}
.feat-icon .svg-icon {
  width: 26px;
  height: 26px;
}
.tool-card-icon .svg-icon {
  width: 22px;
  height: 22px;
}
.tw-icon-wrap .svg-icon {
  width: 32px;
  height: 32px;
}
.logo-icon .svg-icon {
  width: 20px;
  height: 20px;
  color: var(--sf-system-blue);
}
.file-thumb .svg-icon {
  width: 24px;
  height: 24px;
  color: var(--sf-system-blue);
}
.download-check .svg-icon {
  width: 44px;
  height: 44px;
  color: var(--sf-system-green);
}
.upload-icon-big .svg-icon {
  width: 44px;
  height: 44px;
  color: var(--sf-label-tertiary);
}

/* ── NO RESULTS ── */
.no-results {
  text-align: center;
  padding: 60px 24px;
  color: var(--sf-label-secondary);
  font-size: 15px;
}

/* ══════════════════════════════════════════════════════════
   TOOL WORKSPACE VIEW (Progressive Disclosure & Deference)
══════════════════════════════════════════════════════════ */
.tool-view {
  min-height: calc(100vh - 52px);
  animation: appleViewIn 0.3s var(--ease-apple);
}
@keyframes appleViewIn {
  from { opacity: 0; transform: translateY(12px) scale(0.99); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.tool-workspace {
  max-width: 780px;
  margin: 0 auto;
  padding: 48px 24px 100px;
}

.tw-header {
  text-align: center;
  margin-bottom: 40px;
}
.tw-icon-wrap {
  width: 68px;
  height: 68px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 34px;
  margin: 0 auto 16px;
  box-shadow: var(--sf-shadow-sm);
}
.tw-header h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
  color: var(--sf-label-primary);
}
.tw-header p {
  font-size: 15px;
  color: var(--sf-label-secondary);
  max-width: 460px;
  margin: 0 auto;
  line-height: 1.5;
}

/* ── UPLOAD ZONE (Interactive Target Protocol) ── */
.upload-zone {
  background: var(--sf-surface);
  border: 2px dashed var(--sf-border);
  border-radius: var(--radius-xl);
  padding: 56px 40px;
  text-align: center;
  cursor: pointer;
  transition: all var(--anim-base);
  position: relative;
  overflow: hidden;
  box-shadow: var(--sf-shadow-sm);
}
.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--sf-system-blue);
  background: rgba(0, 113, 227, 0.03);
  box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.12);
  transform: scale(1.005);
}
.upload-zone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}
.upload-icon-big {
  font-size: 44px;
  margin-bottom: 14px;
}
.upload-zone h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
  color: var(--sf-label-primary);
}
.upload-zone p {
  font-size: 13px;
  color: var(--sf-label-secondary);
  margin-bottom: 22px;
}

.upload-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--sf-label-primary);
  color: var(--sf-bg-primary);
  font-family: var(--font-sf);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 24px;
  min-height: 40px;
  border-radius: var(--radius-pill);
  border: none;
  cursor: pointer;
  transition: all var(--anim-fast);
  letter-spacing: -0.015em;
  box-shadow: var(--sf-shadow-sm);
}
.upload-btn-secondary:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}
.upload-btn-secondary:active {
  transform: scale(0.96);
}
.upload-hint {
  font-size: 12px;
  color: var(--sf-label-tertiary);
  margin-top: 12px;
}

/* ── GROUPED OPTIONS CONTAINER (Apple HIG standard) ── */
.options-panel,
.apple-grouped-section {
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  margin-top: 14px;
  box-shadow: var(--sf-shadow-sm);
}

.options-panel h4 {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--sf-label-secondary);
  margin-bottom: 14px;
}

.option-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 0.5px solid var(--sf-separator);
}
.option-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.option-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--sf-label-primary);
}
.option-sub {
  font-size: 12px;
  color: var(--sf-label-secondary);
  margin-top: 2px;
}

/* ── FORM CONTROLS (Switches, Ranges, Selects) ── */
.option-select {
  font-family: var(--font-sf);
  font-size: 13px;
  padding: 6px 12px;
  min-height: 34px;
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-sm);
  background: var(--sf-bg-secondary);
  color: var(--sf-label-primary);
  cursor: pointer;
  outline: none;
  transition: all var(--anim-fast);
}
.option-select:focus {
  border-color: var(--sf-system-blue);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.15);
}

/* iOS Toggle Switch */
.toggle {
  position: relative;
  width: 44px;
  height: 26px;
  flex-shrink: 0;
}
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute;
  inset: 0;
  background: rgba(120, 120, 128, 0.24);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background var(--anim-fast);
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 22px;
  height: 22px;
  left: 2px;
  top: 2px;
  background: #FFFFFF;
  border-radius: 50%;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
  transition: transform var(--anim-fast);
}
.toggle input:checked + .toggle-slider {
  background: var(--sf-system-green);
}
.toggle input:checked + .toggle-slider::before {
  transform: translateX(18px);
}

/* Range Slider */
.option-range {
  width: 140px;
  -webkit-appearance: none;
  height: 4px;
  border-radius: 2px;
  background: var(--sf-separator);
  outline: none;
  cursor: pointer;
}
.option-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--sf-label-primary);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
  transition: transform var(--anim-fast);
}
.option-range::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}
.range-val {
  font-size: 13px;
  font-weight: 600;
  min-width: 40px;
  text-align: right;
  color: var(--sf-label-primary);
}

/* Preset Segmented Buttons */
.bg-preset-btn,
.crop-ratio-btn {
  font-family: var(--font-sf);
  font-size: 12.5px;
  font-weight: 500;
  padding: 6px 14px;
  min-height: 32px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--sf-border);
  background: var(--sf-surface);
  color: var(--sf-label-secondary);
  cursor: pointer;
  transition: all var(--anim-fast);
  user-select: none;
}
.bg-preset-btn:hover,
.crop-ratio-btn:hover {
  color: var(--sf-label-primary);
  background: var(--sf-bg-tertiary);
}
.bg-preset-btn:active,
.crop-ratio-btn:active {
  transform: scale(0.96);
}
.bg-preset-btn.active,
.crop-ratio-btn.active {
  background: var(--sf-label-primary);
  color: var(--sf-bg-primary);
  border-color: var(--sf-label-primary);
  box-shadow: var(--sf-shadow-sm);
}

/* ── PRIMARY ACTION BUTTON (Haptic Feedback Simulation) ── */
.action-btn {
  width: 100%;
  margin-top: 20px;
  padding: 15px;
  min-height: 48px;
  background: var(--sf-label-primary);
  color: var(--sf-bg-primary);
  font-family: var(--font-sf);
  font-size: 15px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  letter-spacing: -0.015em;
  transition: all var(--anim-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: var(--sf-shadow-md);
}
.action-btn:hover {
  opacity: 0.88;
  transform: translateY(-1px);
  box-shadow: var(--sf-shadow-hover);
}
.action-btn:active {
  transform: scale(0.98);
}
.action-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ── PROGRESS BAR (Realistic Processing State) ── */
.progress-wrap {
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-top: 16px;
  text-align: center;
  display: none;
  box-shadow: var(--sf-shadow-sm);
}
.progress-wrap.visible {
  display: block;
  animation: appleFadeIn 0.3s var(--ease-apple);
}
.progress-label {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 12px;
  color: var(--sf-label-secondary);
}
.progress-bar-track {
  height: 4px;
  background: var(--sf-bg-secondary);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 10px;
}
.progress-bar-fill {
  height: 100%;
  background: var(--sf-system-blue);
  border-radius: 2px;
  width: 0%;
  transition: width 0.3s var(--ease-apple);
}
.progress-pct {
  font-size: 13px;
  font-weight: 600;
  color: var(--sf-label-secondary);
}

/* ── DOWNLOAD AREA (Completion Card) ── */
.download-area {
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  margin-top: 16px;
  text-align: center;
  display: none;
  box-shadow: var(--sf-shadow-sm);
}
.download-area.visible {
  display: block;
  animation: appleFadeIn 0.3s var(--ease-apple);
}
.download-check {
  font-size: 34px;
  margin-bottom: 8px;
}
.download-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--sf-label-primary);
  margin-bottom: 4px;
}
.download-sub {
  font-size: 13px;
  color: var(--sf-label-secondary);
  margin-bottom: 18px;
}
.download-actions-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 10px;
}
.download-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--sf-system-blue);
  color: #FFFFFF;
  font-family: var(--font-sf);
  font-size: 14px;
  font-weight: 600;
  padding: 12px 28px;
  min-height: 44px;
  border-radius: var(--radius-pill);
  border: none;
  cursor: pointer;
  transition: all var(--anim-fast);
  box-shadow: 0 4px 14px rgba(0, 113, 227, 0.28);
}
.download-btn:hover {
  opacity: 0.92;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 113, 227, 0.35);
}
.download-btn:active {
  transform: scale(0.97);
}
.reset-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--sf-bg-secondary);
  color: var(--sf-label-primary);
  border: 1px solid var(--sf-border);
  font-family: var(--font-sf);
  font-size: 14px;
  font-weight: 500;
  padding: 12px 24px;
  min-height: 44px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--anim-fast);
}
.reset-btn-secondary:hover {
  background: var(--sf-bg-tertiary);
  border-color: rgba(0, 0, 0, 0.15);
}
.reset-btn-secondary:active {
  transform: scale(0.97);
}
.reset-link {
  display: inline-block;
  margin-top: 14px;
  font-size: 13px;
  color: var(--sf-label-secondary);
  cursor: pointer;
  text-decoration: underline;
  transition: color var(--anim-fast);
  padding: 8px 12px;
  min-height: 44px;
  line-height: 28px;
}
.reset-link:hover {
  color: var(--sf-label-primary);
}

/* ── ERROR BOX (High-contrast Callout) ── */
.pt-error-box {
  background: rgba(255, 59, 48, 0.08);
  border: 1px solid rgba(255, 59, 48, 0.25);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 13px;
  color: var(--sf-system-red);
  margin-bottom: 14px;
  line-height: 1.4;
  font-weight: 500;
}

/* ── NOTICE BOX ── */
.it-bg-notice {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 113, 227, 0.08);
  border: 1px solid rgba(0, 113, 227, 0.2);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  margin-bottom: 18px;
  font-size: 13px;
  color: var(--sf-label-primary);
  line-height: 1.45;
}

/* ── FILE INFO BAR ── */
.pt-file-info-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  margin-bottom: 14px;
  font-size: 13px;
  color: var(--sf-label-secondary);
  flex-wrap: wrap;
  box-shadow: var(--sf-shadow-sm);
}
.pt-file-info-bar span:first-child {
  font-weight: 600;
  color: var(--sf-label-primary);
  margin-right: auto;
}

/* ── IMAGE TOOLS SPECIFIC STYLES ── */
.it-compare-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}
.it-compare-card {
  flex: 1;
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
  transition: opacity var(--anim-base);
  box-shadow: var(--sf-shadow-sm);
}
.it-compare-card.dimmed { opacity: 0.45; }
.it-compare-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sf-label-secondary);
  margin-bottom: 10px;
}
.it-compare-arrow {
  font-size: 20px;
  color: var(--sf-label-tertiary);
  align-self: center;
  flex-shrink: 0;
  padding-top: 16px;
}
.it-compare-meta {
  font-size: 12px;
  color: var(--sf-label-secondary);
  margin-top: 10px;
  line-height: 1.4;
}
.it-preview-img {
  max-width: 100%;
  max-height: 200px;
  width: auto;
  height: auto;
  border-radius: 8px;
  display: block;
  margin: 0 auto;
  object-fit: contain;
}
@media (max-width: 600px) {
  .it-compare-row { flex-direction: column; }
  .it-compare-arrow { transform: rotate(90deg); align-self: center; padding: 0; }
}

.it-checkered {
  background-image:
    linear-gradient(45deg, rgba(120, 120, 128, 0.15) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(120, 120, 128, 0.15) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(120, 120, 128, 0.15) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(120, 120, 128, 0.15) 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
  border-radius: 8px;
  overflow: hidden;
  display: inline-block;
  max-width: 100%;
}
#it-bg-canvas {
  display: block;
  max-width: 100%;
  max-height: 240px;
  object-fit: contain;
}

/* ── PDF TOOLS SPECIFIC STYLES ── */
.pt-file-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}
.pt-file-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--sf-bg-secondary);
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  cursor: grab;
  transition: background var(--anim-fast);
}
.pt-file-row:hover { background: var(--sf-bg-tertiary); }
.pt-file-drag { font-size: 16px; color: var(--sf-label-tertiary); cursor: grab; flex-shrink: 0; }
.pt-file-icon { flex-shrink: 0; }
.pt-file-name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 500;
  color: var(--sf-label-primary);
}
.pt-file-size { color: var(--sf-label-secondary); flex-shrink: 0; }
.pt-file-del {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 13px;
  color: var(--sf-label-tertiary);
  padding: 2px 6px;
  border-radius: 4px;
  transition: all var(--anim-fast);
}
.pt-file-del:hover { color: var(--sf-system-red); background: rgba(255, 59, 48, 0.1); }

.pt-add-btn {
  font-family: var(--font-sf);
  font-size: 13px;
  font-weight: 500;
  color: var(--sf-label-secondary);
  background: none;
  border: 1.5px dashed var(--sf-border);
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  min-height: 38px;
  cursor: pointer;
  width: 100%;
  text-align: center;
  transition: all var(--anim-fast);
}
.pt-add-btn:hover {
  border-color: var(--sf-label-primary);
  color: var(--sf-label-primary);
  background: var(--sf-bg-secondary);
}

/* Organize Grid */
.pt-org-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.org-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 10px;
  margin-bottom: 8px;
  min-height: 100px;
}
.org-page-card {
  position: relative;
  background: var(--sf-surface);
  border: 1.5px solid var(--sf-border);
  border-radius: var(--radius-md);
  padding: 8px;
  cursor: grab;
  text-align: center;
  transition: all var(--anim-fast);
  user-select: none;
}
.org-page-card:hover {
  box-shadow: var(--sf-shadow-md);
  border-color: var(--sf-label-secondary);
}
.org-page-card.dragging { opacity: 0.45; transform: scale(0.96); }
.org-page-card.drag-over-card {
  border-color: var(--sf-system-blue);
  box-shadow: 0 0 0 2px rgba(0, 113, 227, 0.25);
}
.org-thumb {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
  border: 1px solid var(--sf-border);
  background: var(--sf-bg-secondary);
}
.org-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--sf-label-secondary);
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.org-del-btn {
  position: absolute;
  top: 4px;
  right: 4px;
  background: rgba(255, 255, 255, 0.92);
  border: none;
  border-radius: 50%;
  width: 22px;
  height: 22px;
  font-size: 11px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--anim-fast);
}
.org-page-card:hover .org-del-btn { opacity: 1; }
.org-del-btn:hover { background: #fee2e2; color: var(--sf-system-red); }

/* ── VIDEO TOOLS SPECIFIC STYLES ── */
.vt-preview-wrap {
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 16px;
  box-shadow: var(--sf-shadow-md);
}
.vt-video-player {
  width: 100%;
  max-height: 380px;
  display: block;
  object-fit: contain;
  background: #000;
}
.vt-trim-wrap { padding: 8px 0; }
.vt-trim-inputs {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.vt-estimate-badge {
  font-size: 13px;
  font-weight: 500;
  color: var(--sf-label-primary);
  background: var(--sf-bg-secondary);
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--sf-border);
}
.vt-bg-preview-row {
  display: flex;
  gap: 14px;
  margin-bottom: 16px;
}
.vt-bg-card {
  flex: 1;
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-md);
  padding: 14px;
  text-align: center;
}
.vt-bg-card .it-compare-label { margin-bottom: 8px; }
.vt-bg-canvas {
  width: 100%;
  max-height: 280px;
  border-radius: 8px;
  display: block;
  margin: 0 auto;
  object-fit: contain;
  background: #fff;
}
@media (max-width: 640px) {
  .vt-bg-preview-row { flex-direction: column; }
}

/* ── CONVERT TOOLS SPECIFIC STYLES ── */
.ct-doc-preview {
  background: var(--sf-bg-secondary);
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-sm);
  padding: 16px;
  max-height: 240px;
  overflow-y: auto;
  font-size: 13px;
  line-height: 1.6;
  color: var(--sf-label-primary);
}
.ct-doc-preview h1, .ct-doc-preview h2, .ct-doc-preview h3 {
  margin: 10px 0 6px;
  font-weight: 600;
}
.ct-doc-preview p { margin-bottom: 8px; }

.ct-table-preview-wrap {
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-sm);
  padding: 12px;
  max-height: 260px;
  overflow: auto;
  font-size: 12.5px;
}
.ct-table-preview-wrap table {
  width: 100%;
  border-collapse: collapse;
}
.ct-table-preview-wrap th,
.ct-table-preview-wrap td {
  border: 1px solid var(--sf-separator);
  padding: 6px 10px;
  text-align: left;
  white-space: nowrap;
  color: var(--sf-label-primary);
}
.ct-table-preview-wrap tr:first-child td,
.ct-table-preview-wrap th {
  background: var(--sf-bg-secondary);
  font-weight: 600;
}

.ct-markdown-preview {
  width: 100%;
  height: 220px;
  background: var(--sf-bg-secondary);
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-sm);
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  color: var(--sf-label-primary);
  resize: vertical;
  outline: none;
  transition: border-color var(--anim-fast);
}
.ct-markdown-preview:focus {
  border-color: var(--sf-system-blue);
}

/* ── ADVANCED PDF TOOLS SPECIFIC STYLES ── */
.apt-sig-canvas {
  background: #FFFFFF;
  border: 1.5px dashed var(--sf-border);
  border-radius: var(--radius-sm);
  cursor: crosshair;
  display: block;
}

.apt-page-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  background: var(--sf-bg-secondary);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--sf-border);
}
.apt-page-nav span {
  font-size: 13px;
  font-weight: 500;
  color: var(--sf-label-primary);
}

.apt-doc-view-wrap {
  background: #3A3A3C;
  border-radius: var(--radius-md);
  padding: 20px;
  overflow: auto;
  text-align: center;
  max-height: 520px;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.2);
}

.apt-canvas-container {
  position: relative;
  display: inline-block;
  cursor: crosshair;
  background: #FFFFFF;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  border-radius: 4px;
}
.apt-canvas-container canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

.apt-sig-marker {
  position: absolute;
  pointer-events: none;
  border: 1.5px dashed var(--sf-system-blue);
  background: rgba(0, 113, 227, 0.12);
  border-radius: 4px;
  box-sizing: border-box;
}
.apt-sig-marker img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

/* ── QR CODE WORKSPACE ── */
.qr-input-wrap {
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--sf-shadow-sm);
}
.qr-field {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-sf);
  font-size: 15px;
  color: var(--sf-label-primary);
  background: var(--sf-bg-secondary);
  outline: none;
  margin-bottom: 12px;
  transition: all var(--anim-fast);
}
.qr-field:focus {
  border-color: var(--sf-system-blue);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.15);
}
.qr-output {
  margin-top: 24px;
  text-align: center;
  display: none;
}
.qr-output.visible {
  display: block;
  animation: appleFadeIn 0.3s var(--ease-apple);
}
.qr-canvas-wrap {
  display: inline-block;
  background: #FFFFFF;
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--sf-border);
  margin-bottom: 16px;
  box-shadow: var(--sf-shadow-sm);
}
#qr-canvas { display: block; }

/* ── FOOTER & LEGAL NAVIGATION ── */
.footer {
  text-align: center;
  padding: 40px 24px;
  font-size: 13px;
  color: var(--sf-label-secondary);
  border-top: 0.5px solid var(--sf-separator);
  background: var(--sf-bg-secondary);
}
.footer-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.footer-link {
  color: var(--sf-label-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: 13px;
  transition: color var(--anim-fast);
}
.footer-link:hover {
  color: var(--sf-system-blue);
  text-decoration: underline;
}
.footer-copy {
  color: var(--sf-label-tertiary);
  font-size: 12px;
}

/* ── LEGAL & CONTENT PAGES ── */
.content-page {
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 24px 80px;
  min-height: calc(100vh - 160px);
  animation: appleFadeIn 0.3s var(--ease-apple);
  overflow-x: hidden;
}
.content-page h1, .content-page h2, .content-page h3, .content-page h4, .content-page p, .content-page li, .content-page a {
  overflow-wrap: break-word;
  word-break: break-word;
}
.content-hero {
  text-align: center;
  padding: 32px 16px 36px;
  margin-bottom: 24px;
}
.content-hero h1 {
  font-size: clamp(26px, 4.5vw, 38px);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--sf-label-primary);
  margin-bottom: 12px;
  line-height: 1.25;
}
.content-hero p {
  font-size: 16px;
  color: var(--sf-label-secondary);
  max-width: 640px;
  margin: 0 auto 16px;
  line-height: 1.55;
}
.content-meta-bar {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  font-size: 13px;
  color: var(--sf-label-tertiary);
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  max-width: 100%;
}

/* ── TOC PILLS / QUICK NAV ── */
.legal-toc {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 2px 16px;
  margin-bottom: 24px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.legal-toc::-webkit-scrollbar { display: none; }
.legal-toc-pill {
  display: inline-block;
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  color: var(--sf-label-secondary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
  transition: all var(--anim-fast);
}
.legal-toc-pill:hover {
  background: var(--sf-bg-secondary);
  color: var(--sf-system-blue);
  border-color: rgba(0, 113, 227, 0.35);
}

/* ── LEGAL CARDS & SECTIONS ── */
.legal-card {
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--sf-shadow-sm);
  margin-bottom: 24px;
}
.legal-section {
  margin-bottom: 36px;
  scroll-margin-top: 80px;
}
.legal-section:last-child {
  margin-bottom: 0;
}
.legal-section-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}
.legal-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(0, 113, 227, 0.12);
  color: var(--sf-system-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}
.legal-section h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--sf-label-primary);
  letter-spacing: -0.015em;
  margin: 0;
}
.legal-section p, .legal-section li {
  font-size: 15px;
  line-height: 1.65;
  color: var(--sf-label-secondary);
  margin-bottom: 12px;
}
.legal-section ul {
  padding-left: 20px;
  margin-bottom: 16px;
}
.legal-section li {
  margin-bottom: 8px;
}

/* ── CALLOUT HIGHLIGHTS ── */
.legal-callout {
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin: 20px 0;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.legal-callout.green {
  background: rgba(52, 199, 89, 0.08);
  border: 1px solid rgba(52, 199, 89, 0.25);
  color: var(--sf-label-primary);
}
.legal-callout.blue {
  background: rgba(0, 113, 227, 0.08);
  border: 1px solid rgba(0, 113, 227, 0.25);
  color: var(--sf-label-primary);
}
.legal-callout.amber {
  background: rgba(255, 149, 0, 0.08);
  border: 1px solid rgba(255, 149, 0, 0.25);
  color: var(--sf-label-primary);
}
.legal-callout-icon {
  flex-shrink: 0;
  margin-top: 2px;
}
.legal-callout h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}
.legal-callout p {
  font-size: 14px;
  line-height: 1.5;
  margin: 0;
  color: var(--sf-label-secondary);
}

/* ── CONTACT GRID LAYOUT ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 24px;
  align-items: start;
}
.contact-info-card {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact-method {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  background: var(--sf-bg-secondary);
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-md);
  transition: transform var(--anim-fast);
}
.contact-method:hover {
  transform: translateY(-2px);
}
.contact-icon-box {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ── CONTACT FORM ── */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--sf-label-primary);
}
.form-input, .form-textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 12px 16px;
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-sf);
  font-size: 15px;
  color: var(--sf-label-primary);
  background: var(--sf-bg-secondary);
  outline: none;
  transition: all var(--anim-fast);
}
.form-input:focus, .form-textarea:focus {
  border-color: var(--sf-system-blue);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.15);
  background: var(--sf-surface);
}
.form-textarea {
  height: 130px;
  resize: vertical;
}

/* ── FAQ ACCORDION CARDS ── */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}
.faq-card {
  background: var(--sf-bg-secondary);
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
}
.faq-card h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--sf-label-primary);
  margin-bottom: 6px;
}
.faq-card p {
  font-size: 14px;
  color: var(--sf-label-secondary);
  line-height: 1.5;
  margin: 0;
}

/* ── ABOUT FEATURE GRID ── */
.about-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin: 28px 0;
}
.about-feat-card {
  background: var(--sf-surface);
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--sf-shadow-sm);
  transition: transform var(--anim-fast);
}
.about-feat-card:hover {
  transform: translateY(-3px);
}
.about-feat-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--sf-label-primary);
  margin: 14px 0 8px;
}
.about-feat-card p {
  font-size: 14px;
  color: var(--sf-label-secondary);
  line-height: 1.5;
  margin: 0;
}
.tech-pills {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 16px;
}
.tech-pill {
  padding: 6px 14px;
  background: var(--sf-bg-secondary);
  border: 1px solid var(--sf-border);
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 500;
  color: var(--sf-label-primary);
}

/* ── MOBILE RESPONSIVENESS OVERHAUL ── */
@media (max-width: 820px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

@media (max-width: 600px) {
  .content-page {
    padding: 24px 16px 60px;
  }
  .content-hero {
    padding: 16px 8px 24px;
  }
  .legal-card {
    padding: 24px 18px;
    border-radius: var(--radius-md);
  }
  .legal-callout {
    padding: 16px;
    flex-direction: column;
    gap: 10px;
  }
  .legal-section-header {
    gap: 10px;
  }
  .legal-num {
    width: 28px;
    height: 28px;
    font-size: 12px;
  }
  .legal-section h2 {
    font-size: 18px;
  }
}

/* ── CUSTOM APPLE SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(120, 120, 128, 0.25); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(120, 120, 128, 0.45); }

/* ── KEYFRAME ANIMATIONS ── */
@keyframes appleFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes appleViewIn {
  from { opacity: 0; transform: scale(0.985) translateY(12px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}