/* ============================================================
   DESIGN SYSTEM — Universal SaaS Template
   Derived from: VTS (OKLch dark theme) + MagicDocs (gradient accents)

   COLOR SPACE: OKLch (perceptually uniform, modern browsers)
   APPROACH: Dark-first with light mode override
   FONTS: Self-hosted (privacy-first, no external requests)
   ============================================================ */

/* ============================================================
   1. DESIGN TOKENS (CSS Custom Properties)
   Change these per product deployment.
   ============================================================ */
:root {
  /* --- Backgrounds (dark theme) --- */
  --bg-void:      oklch(0.08 0.005 260);   /* Deepest background */
  --bg-surface:   oklch(0.12 0.008 260);   /* Card/raised surfaces */
  --bg-elevated:  oklch(0.15 0.010 260);   /* Hover states, modals */
  --bg-subtle:    oklch(0.18 0.012 260);   /* Input fields, wells */

  /* --- Primary Accent (CTA, links, focus)
         Alpha Audit: Teal-cyan gradient — cybersecurity identity.
         Distinct from VTS (indigo), ContractPilot (navy), ComplianceBot (sky). --- */
  --accent-start: oklch(0.62 0.18 160);    /* Teal */
  --accent-end:   oklch(0.58 0.20 200);    /* Cyan */
  --accent-solid: oklch(0.62 0.18 160);    /* Flat fallback */
  --accent-hover: oklch(0.55 0.20 160);    /* Darker on hover */

  /* --- Secondary Accent --- */
  --secondary:    oklch(0.75 0.12 250);    /* Violet (links, badges) */
  --secondary-hover: oklch(0.68 0.14 250);

  /* --- Text --- */
  --text-primary:   oklch(0.96 0.005 260); /* Near-white */
  --text-secondary: oklch(0.72 0.010 260); /* Muted body */
  --text-tertiary:  oklch(0.50 0.010 260); /* Captions, hints */
  --text-inverse:   oklch(0.08 0.005 260); /* On accent backgrounds */

  /* --- Borders --- */
  --border:       oklch(0.22 0.008 260);
  --border-subtle: oklch(0.16 0.005 260);
  --border-accent: var(--accent-solid);

  /* --- Semantic --- */
  --success:  oklch(0.72 0.18 145);
  --warning:  oklch(0.78 0.16 85);
  --error:    oklch(0.65 0.22 28);
  --info:     oklch(0.72 0.14 230);

  /* --- Typography --- */
  --font-sans:  'Plus Jakarta Sans', 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:  'JetBrains Mono', 'Fira Code', ui-monospace, monospace;
  --font-display: var(--font-sans);

  /* --- Type Scale (fluid: clamp) --- */
  --text-xs:   clamp(0.75rem, 0.7rem + 0.2vw, 0.8rem);
  --text-sm:   clamp(0.825rem, 0.8rem + 0.2vw, 0.875rem);
  --text-base: clamp(0.9rem, 0.85rem + 0.25vw, 1rem);
  --text-lg:   clamp(1rem, 0.95rem + 0.3vw, 1.125rem);
  --text-xl:   clamp(1.15rem, 1rem + 0.5vw, 1.25rem);
  --text-2xl:  clamp(1.4rem, 1.2rem + 0.8vw, 1.75rem);
  --text-3xl:  clamp(1.75rem, 1.5rem + 1.2vw, 2.4rem);
  --text-4xl:  clamp(2.2rem, 1.8rem + 2vw, 3.5rem);
  --text-5xl:  clamp(2.8rem, 2.2rem + 3vw, 4.5rem);

  /* --- Spacing Scale --- */
  --space-1:  0.25rem;   /* 4px */
  --space-2:  0.5rem;    /* 8px */
  --space-3:  0.75rem;   /* 12px */
  --space-4:  1rem;      /* 16px */
  --space-5:  1.25rem;   /* 20px */
  --space-6:  1.5rem;    /* 24px */
  --space-8:  2rem;      /* 32px */
  --space-10: 2.5rem;    /* 40px */
  --space-12: 3rem;      /* 48px */
  --space-16: 4rem;      /* 64px */
  --space-20: 5rem;      /* 80px */
  --space-24: 6rem;      /* 96px */
  --space-32: 8rem;      /* 128px */

  /* --- Border Radius --- */
  --radius-sm:  0.375rem;  /* 6px */
  --radius-md:  0.5rem;    /* 8px */
  --radius-lg:  0.75rem;   /* 12px */
  --radius-xl:  1rem;      /* 16px */
  --radius-2xl: 1.5rem;    /* 24px */
  --radius-full: 9999px;

  /* --- Shadows (OKLch for perceptual accuracy) --- */
  --shadow-sm:  0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md:  0 4px 12px oklch(0 0 0 / 0.25);
  --shadow-lg:  0 8px 24px oklch(0 0 0 / 0.3);
  --shadow-xl:  0 16px 48px oklch(0 0 0 / 0.35);
  --shadow-glow: 0 0 24px oklch(0.62 0.18 160 / 0.3);

  /* --- Easing --- */
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);

  /* --- Layout --- */
  --container-max: 1280px;
  --container-narrow: 768px;
  --nav-height: 64px;

  /* --- Z-Index Scale --- */
  --z-base:    0;
  --z-above:   10;
  --z-nav:     100;
  --z-modal:   1000;
  --z-toast:   2000;
}

/* ============================================================
   2. LIGHT MODE OVERRIDE
   Activated by user preference or class toggle.
   ============================================================ */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg-void:      oklch(0.98 0.002 260);
    --bg-surface:   oklch(1.00 0.000 0);
    --bg-elevated:  oklch(0.97 0.003 260);
    --bg-subtle:    oklch(0.95 0.005 260);
    --text-primary:   oklch(0.15 0.005 260);
    --text-secondary: oklch(0.40 0.008 260);
    --text-tertiary:  oklch(0.45 0.006 260); /* darkened: 4.5:1+ on white (was 0.60) */
    --border:       oklch(0.88 0.005 260);
    --border-subtle: oklch(0.92 0.003 260);
    --shadow-sm:  0 1px 2px oklch(0 0 0 / 0.06);
    --shadow-md:  0 4px 12px oklch(0 0 0 / 0.08);
    --shadow-lg:  0 8px 24px oklch(0 0 0 / 0.1);
    --shadow-xl:  0 16px 48px oklch(0 0 0 / 0.12);
  }
}

[data-theme="light"] {
  --bg-void:      oklch(0.98 0.002 260);
  --bg-surface:   oklch(1.00 0.000 0);
  --bg-elevated:  oklch(0.97 0.003 260);
  --bg-subtle:    oklch(0.95 0.005 260);
  --text-primary:   oklch(0.15 0.005 260);
  --text-secondary: oklch(0.40 0.008 260);
  --text-tertiary:  oklch(0.45 0.006 260); /* darkened: 4.5:1+ on white (was 0.60) */
  --text-inverse:   oklch(0.96 0.005 260);
  --border:       oklch(0.88 0.005 260);
  --border-subtle: oklch(0.92 0.003 260);
  --shadow-sm:  0 1px 2px oklch(0 0 0 / 0.06);
  --shadow-md:  0 4px 12px oklch(0 0 0 / 0.08);
  --shadow-lg:  0 8px 24px oklch(0 0 0 / 0.1);
  --shadow-xl:  0 16px 48px oklch(0 0 0 / 0.12);
}

/* Manual dark override — set by JS theme toggle (data-theme="dark" on <html>) */
[data-theme="dark"] {
  --bg-void:      oklch(0.08 0.005 260);
  --bg-surface:   oklch(0.12 0.008 260);
  --bg-elevated:  oklch(0.15 0.010 260);
  --bg-subtle:    oklch(0.18 0.012 260);
  --text-primary:   oklch(0.96 0.005 260);
  --text-secondary: oklch(0.72 0.010 260);
  --text-tertiary:  oklch(0.50 0.010 260);
  --text-inverse:   oklch(0.08 0.005 260);
  --border:       oklch(0.22 0.008 260);
  --border-subtle: oklch(0.16 0.005 260);
  --shadow-sm:  0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md:  0 4px 12px oklch(0 0 0 / 0.25);
  --shadow-lg:  0 8px 24px oklch(0 0 0 / 0.3);
  --shadow-xl:  0 16px 48px oklch(0 0 0 / 0.35);
}

/* ============================================================
   3. RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-primary);
  background: var(--bg-void);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body { min-height: 100dvh; overflow-x: hidden; }

img, video, svg { display: block; max-width: 100%; height: auto; }

a {
  color: var(--secondary);
  text-decoration: none;
  transition: color 0.2s var(--ease-smooth);
}
a:hover { color: var(--secondary-hover); }

/* Focus visible (accessibility) */
:focus-visible {
  outline: 3px solid var(--secondary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* Selection */
::selection {
  background: oklch(0.62 0.18 160 / 0.3);
  color: var(--text-primary);
}

/* ============================================================
   4. SKIP LINK (Accessibility)
   ============================================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: var(--accent-solid);
  color: var(--text-inverse);
  border-radius: var(--radius-md);
  font-weight: 600;
  z-index: var(--z-toast);
  transition: top 0.2s;
}
.skip-link:focus {
  top: var(--space-4);
}

/* ============================================================
   5. CONTAINER
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}
.container--narrow {
  max-width: var(--container-narrow);
}

/* ============================================================
   6. TYPOGRAPHY UTILITIES
   ============================================================ */
.section__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.15;
  color: var(--text-primary);
}

.section__subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  margin-top: var(--space-4);
  max-width: 600px;
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-16);
}
.section__header .section__subtitle {
  margin-left: auto;
  margin-right: auto;
}

/* ============================================================
   7. BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.25s var(--ease-out);
  white-space: nowrap;
  text-decoration: none;
  line-height: 1;
}

/* Sizes */
.btn--sm  { font-size: var(--text-sm); padding: var(--space-2) var(--space-5); }
.btn--md  { font-size: var(--text-base); padding: var(--space-3) var(--space-6); }
.btn--lg  { font-size: var(--text-lg); padding: var(--space-4) var(--space-8); }
.btn--full { width: 100%; }

/* Primary: gradient accent */
.btn--primary {
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  color: white;
  box-shadow: var(--shadow-md), var(--shadow-glow);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), 0 0 32px oklch(0.62 0.18 160 / 0.4);
  color: white;
}
.btn--primary:active {
  transform: translateY(0);
}

/* Ghost: transparent with border */
.btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn--ghost:hover {
  background: var(--bg-elevated);
  border-color: var(--border-accent);
  color: var(--text-primary);
}

/* ============================================================
   8. BADGES
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
}

.badge--mono {
  font-family: var(--font-mono);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse 2s ease infinite;
}

.badge--save {
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  color: white;
  font-size: 0.65rem;
  padding: 2px 6px;
  margin-left: var(--space-2);
}

/* ============================================================
   9. CARDS (Base)
   ============================================================ */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all 0.3s var(--ease-out);
}
.card:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* ============================================================
   10. ANIMATIONS
   ============================================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(1.4); }
}

@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-8px); }
}

/* Scroll-triggered reveal (applied via JS IntersectionObserver) */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }
.reveal:nth-child(5) { transition-delay: 0.4s; }
.reveal:nth-child(6) { transition-delay: 0.5s; }

/* Gradient text */
.gradient-text {
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================================
   11. THEME TOGGLE BUTTON
   Icon-only button for manual light/dark mode switching.
   ============================================================ */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s var(--ease-smooth);
  flex-shrink: 0;
}
.theme-toggle:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border-color: var(--border-accent);
}
.theme-toggle:focus-visible {
  outline: 3px solid var(--secondary);
  outline-offset: 2px;
}

/* Show/hide sun vs moon icon based on active theme */
.theme-toggle__sun  { display: none; }
.theme-toggle__moon { display: block; }

[data-theme="light"] .theme-toggle__sun  { display: block; }
[data-theme="light"] .theme-toggle__moon { display: none; }

/* When OS is dark and no manual override */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle__sun  { display: block; }
  :root:not([data-theme="light"]) .theme-toggle__moon { display: none; }
}

/* ============================================================
   12. STRIPE-LEVEL ENHANCEMENTS
   Derived from stripe.com audit: flashlight hover, grid lines,
   hero gradient orb, enhanced reveal animations.
   ============================================================ */

/* --- 12a. Flashlight Card Hover Effect (Stripe signature) ---
   Mouse-tracking radial gradient on feature cards.
   Requires JS to set --mouse-x / --mouse-y CSS vars on hover. */
.feature-card {
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    650px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    oklch(0.62 0.18 160 / 0.08),
    transparent 40%
  );
  border-radius: inherit;
  z-index: 0;
  opacity: 0;
  transition: opacity 0.4s var(--ease-out);
  pointer-events: none;
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card > * {
  position: relative;
  z-index: 1;
}

/* Vertical card flashlight variant */
.vertical-card {
  position: relative;
  overflow: hidden;
}

.vertical-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    650px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    oklch(0.62 0.18 160 / 0.06),
    transparent 40%
  );
  border-radius: inherit;
  z-index: 0;
  opacity: 0;
  transition: opacity 0.4s var(--ease-out);
  pointer-events: none;
}

.vertical-card:hover::before {
  opacity: 1;
}

.vertical-card > * {
  position: relative;
  z-index: 1;
}

/* --- 12b. Visible Grid Lines (Stripe signature) ---
   Subtle 4-column grid pattern visible behind content sections.
   Creates Stripe's iconic alignment rhythm. */
.has-grid-lines {
  position: relative;
}

.has-grid-lines::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      to right,
      var(--border-subtle) 0,
      var(--border-subtle) 1px,
      transparent 1px,
      transparent 25%
    );
  pointer-events: none;
  opacity: 0.4;
  z-index: 0;
}

.has-grid-lines > * {
  position: relative;
  z-index: 1;
}

/* --- 12c. Hero Gradient Orb ---
   Animated gradient blob behind hero content.
   Creates depth without requiring WebGL (CSS fallback). */
.hero--gradient-orb::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 60%;
  height: 140%;
  background: radial-gradient(
    ellipse at center,
    oklch(0.62 0.18 160 / 0.15) 0%,
    oklch(0.58 0.20 200 / 0.08) 40%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 0;
  animation: gradientOrbFloat 12s ease-in-out infinite;
}

.hero--gradient-orb > * {
  position: relative;
  z-index: 1;
}

@keyframes gradientOrbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%      { transform: translate(2%, -3%) scale(1.02); }
  66%      { transform: translate(-1%, 2%) scale(0.98); }
}

/* --- 12d. Enhanced Reveal Animations ---
   Staggered entrance with configurable delay per child.
   Stripe uses custom cubic-bezier(0.2, 1, 0.2, 1) easing. */
.reveal-stagger > .reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.7s cubic-bezier(0.2, 1, 0.2, 1),
    transform 0.7s cubic-bezier(0.2, 1, 0.2, 1);
}

.reveal-stagger > .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-stagger > .reveal:nth-child(1) { transition-delay: 0s; }
.reveal-stagger > .reveal:nth-child(2) { transition-delay: 0.08s; }
.reveal-stagger > .reveal:nth-child(3) { transition-delay: 0.16s; }
.reveal-stagger > .reveal:nth-child(4) { transition-delay: 0.24s; }
.reveal-stagger > .reveal:nth-child(5) { transition-delay: 0.32s; }
.reveal-stagger > .reveal:nth-child(6) { transition-delay: 0.40s; }

/* --- 12e. WebGL Gradient Canvas ---
   Full-bleed canvas behind hero for mesh gradient animation.
   Falls back to CSS gradient orb if WebGL unavailable. */
.hero__gradient-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.6;
}

/* Fallback gradient when canvas/WebGL not supported */
.hero__gradient-canvas--fallback {
  background: radial-gradient(
    ellipse at 70% 50%,
    oklch(0.62 0.18 160 / 0.12),
    oklch(0.58 0.20 200 / 0.06) 50%,
    transparent 75%
  );
}

/* --- 12f. Enhanced Final CTA Gradient Orb ---
   Larger, more prominent gradient effect for the closing section. */
.final-cta--enhanced::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(800px, 90vw);
  height: min(800px, 90vw);
  background: radial-gradient(
    circle,
    oklch(0.62 0.18 160 / 0.18),
    oklch(0.58 0.20 200 / 0.08) 40%,
    transparent 70%
  );
  pointer-events: none;
  animation: gradientOrbFloat 15s ease-in-out infinite;
}

/* --- 12g. SVG Icon System ---
   Consistent icon sizing for feature cards and step indicators. */
.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.icon svg {
  width: 100%;
  height: 100%;
}

.icon--sm { width: 20px; height: 20px; }
.icon--md { width: 24px; height: 24px; }
.icon--lg { width: 32px; height: 32px; }
.icon--xl { width: 48px; height: 48px; }

/* Feature card icon container */
.feature-card__icon svg {
  width: 24px;
  height: 24px;
  color: white;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* --- 12h. Step connector animation ---
   Animated progress line between how-it-works steps. */
.step__connector {
  position: relative;
  overflow: hidden;
}

.step__connector::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--accent-start), var(--accent-end));
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 0.6s cubic-bezier(0.2, 1, 0.2, 1);
}

.step__connector.is-filled::after {
  transform: scaleX(1);
}

/* Vertical connector variant */
@media (max-width: 768px) {
  .step__connector::after {
    transform-origin: top;
  }
}

/* ============================================================
   13. PRINT STYLES
   ============================================================ */
@media print {
  body { background: white; color: black; }
  .nav, .footer, .btn, .pricing__toggle { display: none; }
  .hero__gradient-canvas,
  .has-grid-lines::after,
  .hero--gradient-orb::before,
  .final-cta::before { display: none; }
  .container { max-width: 100%; padding: 0; }
}

/* ==========================================================================
   14. PRODUCT DEMO CAROUSEL — animated mockup section below hero
   ========================================================================== */

.product-demo {
  padding: 0 0 var(--section-py);
  position: relative;
}

.hero-mockup {
  width: 100%;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.carousel-tabs {
  display: flex;
  justify-content: center;
  gap: 0.25rem;
  margin-bottom: 1.25rem;
}

.carousel-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  padding: 0.4rem 0.85rem;
  border-radius: 12px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-subtle);
  border: none;
  border-bottom: 2px solid transparent;
  background: transparent;
  cursor: pointer;
  transition: opacity 0.3s ease, border-color 0.3s ease, background 0.3s ease;
  opacity: 0.5;
}

.carousel-tab.is-active {
  opacity: 1;
  border-bottom-color: var(--accent-solid);
  color: var(--fg);
  background: color-mix(in oklch, var(--accent-solid) 8%, transparent);
}

.carousel-tab-doc {
  display: block;
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: none;
  color: var(--fg-subtle);
  transition: color 0.3s ease;
}

.carousel-track-wrapper {
  overflow: hidden;
  border-radius: 16px;
}

.carousel-track {
  display: flex;
  align-items: stretch;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-slide {
  min-width: 100%;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.mockup-flow {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0 0.5rem;
}

.mockup-card {
  width: 100%;
  background: oklch(0.15 0.01 270);
  border: 1px solid oklch(0.25 0.01 270);
  border-radius: 12px;
  overflow: hidden;
  box-shadow:
    0 0 0 1px oklch(1 0 0 / 0.04),
    0 24px 80px oklch(0 0 0 / 0.5),
    0 0 40px color-mix(in oklch, var(--accent-solid) 6%, transparent);
}

.mockup-card-body {
  padding: 1.25rem 1.5rem 1.5rem;
  font-size: 0.82rem;
  line-height: 1.6;
}

.mockup-field {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.mockup-label {
  color: var(--fg-subtle);
  flex-shrink: 0;
  min-width: 52px;
}

.mockup-value {
  color: var(--fg-muted);
}

.mockup-highlight {
  color: var(--accent-solid);
}

.mockup-body-text {
  margin-top: 0.85rem;
  padding-top: 0.85rem;
  border-top: 1px solid oklch(0.25 0.01 270);
  color: var(--fg-muted);
  font-size: 0.8rem;
  line-height: 1.55;
}

.mockup-body-text p { margin: 0; }

.mockup-doc-title {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--fg);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid oklch(0.25 0.01 270);
}

.mockup-doc-line {
  display: flex;
  gap: 0.75rem;
  padding: 0.35rem 0;
  font-size: 0.78rem;
  line-height: 1.45;
}

.mockup-doc-date {
  color: var(--fg-subtle);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  flex-shrink: 0;
  min-width: 40px;
}

.mockup-doc-text { color: var(--fg-muted); }

.mockup-doc-line.mockup-doc-new {
  background: color-mix(in oklch, var(--accent-solid) 8%, transparent);
  border-left: 2px solid var(--accent-solid);
  border-radius: 0 4px 4px 0;
  padding: 0.5rem 0.75rem;
  margin: 0.25rem 0;
}

.mockup-doc-new .mockup-doc-text { color: var(--fg); }

.mockup-doc-badge {
  margin-top: 0.85rem;
  text-align: right;
}

.mockup-doc-badge .badge--mono {
  font-size: 0.65rem;
  color: var(--accent-solid);
  border-color: color-mix(in oklch, var(--accent-solid) 30%, transparent);
}

.mockup-connector {
  flex-shrink: 0;
  width: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: rotate(90deg);
  margin: 0 auto;
}

.mockup-connector svg { overflow: visible; }

.terminal-chrome {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1rem;
  background: oklch(1 0 0 / 0.03);
  border-bottom: 1px solid oklch(0.25 0.01 270);
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-dot.red    { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green  { background: #27c93f; }

.terminal-title {
  flex: 1;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--fg-subtle);
  letter-spacing: 0.03em;
}

@media (max-width: 768px) {
  .carousel-tabs { flex-wrap: wrap; gap: 0.35rem; }
  .carousel-tab  { font-size: 0.6rem; padding: 0.25rem 0.5rem; }
  .mockup-connector { display: none; }
}

/* ============================================================
   INSTANCE OVERRIDE: alpha-audit
   Generated by new-instance.sh — do not edit manually.
   ============================================================ */
:root {
  --accent-start: oklch(0.62 0.18 160);
  --accent-end:   oklch(0.58 0.20 200);
  --accent-solid: oklch(0.62 0.18 160);
  --accent-hover: oklch(0.62 0.18 160);
  --secondary:    oklch(0.75 0.12 250);
  --secondary-hover: oklch(0.75 0.12 250);
}

/* ============================================================
   WCAG AA CONTRAST FIXES — LIGHT MODE
   Overrides instance accent/secondary values for 4.5:1 on white.
   Must come after the instance :root block to take precedence.
   ============================================================ */
[data-theme="light"] {
  --accent-solid:    oklch(0.42 0.18 160); /* teal darkened: ~7:1 on white */
  --accent-start:    oklch(0.42 0.18 160);
  --accent-end:      oklch(0.39 0.20 200);
  --accent-hover:    oklch(0.36 0.18 160);
  --secondary:       oklch(0.36 0.12 250); /* purple darkened: ~7:1 on white */
  --secondary-hover: oklch(0.30 0.12 250);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --accent-solid:    oklch(0.42 0.18 160);
    --accent-start:    oklch(0.42 0.18 160);
    --accent-end:      oklch(0.39 0.20 200);
    --accent-hover:    oklch(0.36 0.18 160);
    --secondary:       oklch(0.36 0.12 250);
    --secondary-hover: oklch(0.30 0.12 250);
  }
}