/* ==========================================================================
   MURMUR - MINIMALIST LUXURY DESIGN SYSTEM
   Matches Pathway & Mac Upgraded master website guidelines
   Clean Typography (Inter Tight + JetBrains Mono), Generous Whitespace,
   Subtle Hairlines, macOS Traffic Lights, and Thoughtful Micro-Interactions
   ========================================================================== */

/* --------------------------------------------------------------------------
   Design tokens — aligned with the Mac Upgraded master design system.
   Legacy Murmur variable names are kept as aliases so existing component CSS
   and JS hooks keep working, now fully light + dark aware.
   -------------------------------------------------------------------------- */
:root {
  color-scheme: light;

  /* ---- Native Mac Studio — warm neutral surfaces ---- */
  --paper: #f7f4ee;
  --surface: #fffdf8;
  --surface-2: #fbf8f1;
  --sunken: #ece7dc;
  --ink-tile: #1b1a16;

  /* Warm graphite ink ramp */
  --ink: #1b1a16;
  --ink-2: #514d44;
  --ink-3: #807a6c;
  --ink-4: #a8a193;

  /* Single confident accent — Murmur signature liquid-glass teal */
  --accent: #0d8b84;
  --accent-ink: #0a6f6a;
  --accent-bright: #13a89f;
  --accent-soft: rgba(13, 139, 132, 0.12);
  --accent-line: rgba(13, 139, 132, 0.35);

  /* Hairlines */
  --line: rgba(27, 26, 22, 0.12);
  --line-2: rgba(27, 26, 22, 0.20);
  --line-faint: rgba(27, 26, 22, 0.07);

  /* Radii — tight */
  --radius: 10px;
  --radius-lg: 14px;
  --radius-pill: 9999px;

  /* Motion */
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --transition: 0.18s var(--ease);

  /* Shadows — minimal */
  --shadow: 0 1px 0 rgba(27,26,22,0.04), 0 10px 30px -22px rgba(27,26,22,0.4);
  --shadow-lg: 0 2px 0 rgba(27,26,22,0.05), 0 36px 60px -34px rgba(27,26,22,0.5);

  /* Type */
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --display: "Space Grotesk", var(--sans);
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  /* ---- Legacy Murmur aliases → mapped onto master tokens ---- */
  --bg-page: var(--paper);
  --bg-subtle: var(--surface-2);
  --bg-sunken: var(--sunken);
  --bg-card: var(--surface);
  --bg-elevated: var(--surface);
  --bg-glass: color-mix(in srgb, var(--paper) 85%, transparent);
  --bg-paper: var(--paper);
  --bg-mist: var(--surface-2);
  --bg-dark-card: #1c1a14;
  --bg-dark-header: #211e17;
  --ink-primary: var(--ink);
  --ink-secondary: var(--ink-2);
  --ink-muted: var(--ink-3);
  --ink-faint: var(--ink-4);
  --accent-hover: var(--accent-ink);
  --accent-2: var(--accent-bright);
  --brand-gradient: var(--accent);
  --accent-blue: var(--accent);
  --accent-blue-hover: var(--accent-ink);
  --accent-blue-soft: var(--accent-soft);
  --accent-purple: var(--accent-bright);
  --accent-purple-soft: var(--accent-soft);
  --accent-teal: var(--accent);
  --border: var(--line);
  --border-strong: var(--line-2);
  --hairline: var(--line-faint);
  --border-hair: var(--line);
  --border-card: var(--line);
  --border-focus: var(--accent);
  --font-sans: var(--sans);
  --font-mono: var(--mono);
  --font-display: var(--display);
  --radius-sm: 10px;
  --radius-md: 12px;
  --radius-xl: 18px;
  --radius-full: 9999px;
  --shadow-subtle: var(--shadow);
  --shadow-card: var(--shadow);
  --shadow-elevated: var(--shadow-lg);
  --shadow-window: var(--shadow-lg);
  --shadow-terminal: 0 30px 60px -30px rgba(0, 0, 0, 0.45);
  --shadow-accent: var(--shadow);
}

/* ---- Dark theme: follow system unless user forced light ---- */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --paper: #15140f;
    --surface: #1c1a14;
    --surface-2: #211e17;
    --sunken: #0d0c09;
    --ink-tile: #f2eee3;
    --ink: #f3efe4;
    --ink-2: #c3bcac;
    --ink-3: #8c8575;
    --ink-4: #635d50;
    --accent: #2fbdb2;
    --accent-ink: #4fd0c5;
    --accent-bright: #4fd0c5;
    --accent-soft: rgba(47, 189, 178, 0.16);
    --accent-line: rgba(47, 189, 178, 0.4);
    --line: rgba(246, 240, 228, 0.13);
    --line-2: rgba(246, 240, 228, 0.22);
    --line-faint: rgba(246, 240, 228, 0.07);
    --bg-dark-card: #211e17;
    --bg-dark-header: #2a2720;
    --shadow: 0 1px 0 rgba(0,0,0,0.5), 0 12px 34px -24px rgba(0,0,0,0.8);
    --shadow-lg: 0 2px 0 rgba(0,0,0,0.5), 0 40px 70px -34px rgba(0,0,0,0.9);
    --shadow-terminal: 0 30px 60px -30px rgba(0, 0, 0, 0.7);
  }
}

/* ---- Dark theme: user forced ---- */
:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #15140f;
  --surface: #1c1a14;
  --surface-2: #211e17;
  --sunken: #0d0c09;
  --ink-tile: #f2eee3;
  --ink: #f3efe4;
  --ink-2: #c3bcac;
  --ink-3: #8c8575;
  --ink-4: #635d50;
  --accent: #2fbdb2;
  --accent-ink: #4fd0c5;
  --accent-bright: #4fd0c5;
  --accent-soft: rgba(47, 189, 178, 0.16);
  --accent-line: rgba(47, 189, 178, 0.4);
  --line: rgba(246, 240, 228, 0.13);
  --line-2: rgba(246, 240, 228, 0.22);
  --line-faint: rgba(246, 240, 228, 0.07);
  --bg-dark-card: #211e17;
  --bg-dark-header: #2a2720;
  --shadow: 0 1px 0 rgba(0,0,0,0.5), 0 12px 34px -24px rgba(0,0,0,0.8);
  --shadow-lg: 0 2px 0 rgba(0,0,0,0.5), 0 40px 70px -34px rgba(0,0,0,0.9);
  --shadow-terminal: 0 30px 60px -30px rgba(0, 0, 0, 0.7);
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--ink-primary);
  line-height: 1.5;
  font-feature-settings: "ss01", "cv01";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color 0.3s var(--ease), color 0.3s var(--ease);
}

::selection { background: var(--accent-soft); }

:focus-visible {
  outline: 2.5px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Layout Utilities */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Floating Clean Navbar */
.navbar-wrapper {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 16px 20px;
  pointer-events: none;
}

.navbar {
  pointer-events: auto;
  max-width: 1040px;
  margin: 0 auto;
  height: 54px;
  background: var(--bg-glass);
  backdrop-filter: blur(22px) saturate(180%);
  -webkit-backdrop-filter: blur(22px) saturate(180%);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px 0 18px;
  box-shadow: var(--shadow-subtle);
  transition: box-shadow var(--transition), background var(--transition);
}

/* Theme toggle (master pattern) */
.theme-toggle {
  width: 38px; height: 38px; border-radius: var(--radius-full);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--ink-secondary); border: 1px solid var(--border); background: transparent;
  transition: color var(--transition), background var(--transition), transform var(--transition);
}
.theme-toggle:hover { color: var(--ink-primary); background: var(--bg-subtle); transform: translateY(-1px); }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
}
.nav-right { display: flex; align-items: center; gap: 8px; }

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink-primary);
}

.brand-icon {
  width: 30px;
  height: 30px;
  border-radius: 7px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  transition: transform var(--transition);
}

.nav-brand:hover .brand-icon {
  transform: rotate(-8deg) scale(1.06);
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav-back-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  background: var(--bg-mist);
  color: var(--ink-secondary);
  font-size: 12.5px;
  font-weight: 650;
  text-decoration: none;
  border: 1px solid var(--border-card);
  transition: all var(--transition);
  white-space: nowrap;
}

.nav-back-pill:hover {
  background: var(--ink-primary);
  color: var(--bg-page);
  border-color: var(--ink-primary);
  transform: translateX(-2px);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  color: var(--ink-secondary);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-link:hover {
  color: var(--accent-blue);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 18px;
  background: var(--ink-primary);
  color: var(--bg-page);
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition);
}

.nav-cta:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-1px);
}

/* Minimalist Hero Section */
.hero {
  padding: 70px 0 90px;
  text-align: center;
}

.hero-mascot-wrapper {
  position: relative;
  display: inline-block;
  margin-bottom: 28px;
}

.hero-mascot-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  display: block;
  outline: none;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.hero-mascot-btn:hover {
  transform: scale(1.08) rotate(-4deg);
}

.hero-mascot-btn:active {
  transform: scale(0.95);
}

.mascot-img {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  box-shadow: 0 16px 32px -8px rgba(0, 113, 227, 0.3);
  display: block;
}

.mascot-hint {
  position: absolute;
  top: 50%;
  left: calc(100% + 14px);
  transform: translateY(-50%) rotate(-3deg);
  white-space: nowrap;
  font-size: 0.88rem;
  font-style: italic;
  font-weight: 500;
  color: var(--ink-muted);
}

.eyebrow-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  background: var(--accent-blue-soft);
  border: 1px solid rgba(0, 113, 227, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.84rem;
  font-weight: 650;
  color: var(--accent-blue);
  margin-bottom: 22px;
}

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-blue);
  box-shadow: 0 0 8px var(--accent-blue);
}

.hero-title {
  font-size: clamp(3rem, 7vw, 5.8rem);
  font-weight: 600;
  line-height: 0.98;
  letter-spacing: -0.045em;
  color: var(--ink-primary);
  max-width: 17ch;
  margin: 0 auto 26px;
}

.hero-title-accent {
  color: var(--accent-blue);
}

.hero-desc {
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  line-height: 1.48;
  color: var(--ink-secondary);
  max-width: 38ch;
  margin: 0 auto 36px;
  font-weight: 400;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.btn-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  height: 50px;
  padding: 0 28px;
  border-radius: var(--radius-full);
  font-size: 1.02rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn-pill-primary {
  background: var(--brand-gradient);
  color: #ffffff;
  box-shadow: var(--shadow-accent);
}

.btn-pill-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 46px -16px rgba(10, 132, 255, 0.6);
}

.btn-pill-secondary {
  background: transparent;
  color: var(--ink-primary);
  border: 1px solid var(--border-strong);
}

.btn-pill-secondary:hover {
  background: var(--bg-subtle);
  transform: translateY(-2px);
}

.hero-subtext {
  font-size: 0.95rem;
  color: var(--ink-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}

.hero-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--ink-faint);
}

/* Minimal Hero Showcase with macOS Window Frame */
.showcase-container {
  margin: 50px auto 0;
  max-width: 1040px;
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-window);
  border: 1px solid var(--border-hair);
  background: var(--bg-card);
}

.mac-window-topbar {
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border-hair);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.traffic-lights {
  display: flex;
  gap: 7px;
}

.traffic-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.dot-red { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green { background: #28c840; }

.mac-window-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-muted);
}

.mac-window-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-blue);
  background: var(--accent-blue-soft);
  padding: 3px 8px;
  border-radius: 6px;
  font-weight: 600;
}

.showcase-img {
  width: 100%;
  height: auto;
  display: block;
}

/* Section Framework */
.section {
  padding: 110px 0;
}

.section-mist {
  background-color: var(--bg-mist);
}

.section-label {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink-muted);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2.4rem, 4.8vw, 4.4rem);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--ink-primary);
  margin-bottom: 24px;
}

.section-subtitle {
  font-size: 1.25rem;
  color: var(--ink-secondary);
  line-height: 1.5;
  max-width: 42ch;
}

/* Narrative Beat Layout */
.narrative-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 70px;
  align-items: center;
  margin-top: 60px;
}

.beat-list {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.beat-item {
  padding-left: 20px;
  border-left: 2px solid var(--border-hair);
  transition: all var(--transition);
  cursor: pointer;
}

.beat-item.active {
  border-left-color: var(--accent-blue);
}

.beat-keycap {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-blue);
  margin-bottom: 8px;
}

.beat-heading {
  font-size: 1.8rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  margin-bottom: 8px;
  line-height: 1.2;
}

.beat-text {
  font-size: 1.05rem;
  color: var(--ink-secondary);
  line-height: 1.55;
}

/* Interactive Device / HUD Stage */
.preview-stage {
  background: var(--bg-card);
  border: 1px solid var(--border-hair);
  border-radius: var(--radius-xl);
  padding: 12px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  position: sticky;
  top: 100px;
}

.stage-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px 14px;
  border-bottom: 1px solid var(--border-hair);
}

.stage-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-muted);
}

.stage-body {
  padding: 22px 18px;
}

/* Simulated Audio Waveform & Speech HUD */
.hud-simulation {
  background: var(--bg-elevated);
  border: 1px solid var(--border-hair);
  border-radius: var(--radius-md);
  padding: 20px;
}

.hud-wave-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  height: 48px;
  margin-bottom: 18px;
}

.wave-bar {
  width: 4px;
  border-radius: 9999px;
  background: var(--accent-blue);
  animation: waveAnim 1.2s ease-in-out infinite alternate;
}

.wave-bar:nth-child(1) { height: 18px; animation-delay: 0.1s; }
.wave-bar:nth-child(2) { height: 32px; animation-delay: 0.2s; }
.wave-bar:nth-child(3) { height: 42px; animation-delay: 0.3s; }
.wave-bar:nth-child(4) { height: 26px; animation-delay: 0.15s; }
.wave-bar:nth-child(5) { height: 38px; animation-delay: 0.25s; }
.wave-bar:nth-child(6) { height: 16px; animation-delay: 0.05s; }
.wave-bar:nth-child(7) { height: 30px; animation-delay: 0.35s; }

@keyframes waveAnim {
  0% { transform: scaleY(0.4); opacity: 0.6; }
  100% { transform: scaleY(1.1); opacity: 1; }
}

.hud-transcription-box {
  background: var(--bg-mist);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--ink-primary);
  border-left: 3px solid var(--accent-blue);
  min-height: 84px;
}

.hud-cleaned-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #10b981;
  background: rgba(16, 185, 129, 0.1);
  padding: 2px 7px;
  border-radius: 4px;
  margin-bottom: 6px;
  font-weight: 600;
}

.hud-footer {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border-hair);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--ink-muted);
}

/* Feature Showcase Rows */
.feature-showcase-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: center;
  margin-top: 70px;
}

.feature-showcase-row.reverse {
  direction: rtl;
}

.feature-showcase-row.reverse > * {
  direction: ltr;
}

.feature-showcase-text h3 {
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.feature-showcase-text p {
  font-size: 1.1rem;
  color: var(--ink-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

.feature-showcase-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature-showcase-list li {
  font-size: 1rem;
  color: var(--ink-secondary);
  line-height: 1.5;
}

.feature-showcase-list strong {
  color: var(--ink-primary);
}

.feature-showcase-img-wrap {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-hair);
  background: var(--bg-card);
}

.feature-showcase-img-wrap img {
  width: 100%;
  height: auto;
  display: block;
}

/* Keycap Playground */
.key-tester-wrapper {
  margin-top: 48px;
  background: var(--bg-card);
  border: 1px solid var(--border-hair);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-card);
  text-align: center;
}

.keycaps-row {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.keycap-btn {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 12px 20px;
  border-radius: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-bottom: 3px solid var(--border-strong);
  color: var(--ink-primary);
  cursor: pointer;
  transition: all 0.12s ease;
  outline: none;
}

.keycap-btn:hover {
  background: var(--bg-subtle);
  transform: translateY(-1px);
}

.keycap-btn:active, .keycap-btn.active {
  transform: translateY(2px);
  border-bottom-width: 1px;
  background: var(--accent-blue-soft);
  color: var(--accent-blue);
  border-color: var(--accent-blue);
}

.kbd-badge {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", var(--font-mono);
  font-size: 0.85em;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-strong);
  border-bottom: 2px solid var(--border-strong);
  color: var(--ink-primary);
  display: inline-block;
  vertical-align: middle;
  line-height: 1.4;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.keycap-feedback {
  font-size: 1.05rem;
  color: var(--ink-secondary);
  min-height: 30px;
  font-weight: 500;
}

/* Three Clean Promises */
.promises-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 50px;
}

.promise-card {
  background: var(--bg-card);
  border: 1px solid var(--border-hair);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  box-shadow: var(--shadow-subtle);
  transition: all var(--transition);
}

.promise-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.promise-card h3 {
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  color: var(--ink-primary);
}

.promise-card p {
  font-size: 1rem;
  color: var(--ink-secondary);
  line-height: 1.55;
}

/* Setup Terminal Section */
.setup-section {
  background: var(--bg-mist);
}

.setup-stack {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 50px;
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

.terminal-card {
  background: var(--bg-dark-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-terminal);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.terminal-topbar {
  background: var(--bg-dark-header);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.terminal-step {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  font-weight: 600;
  color: #f7f7f8;
}

.step-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-blue);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}

.terminal-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.os-pill-group {
  display: flex;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  padding: 2px;
}

.os-tab {
  background: none;
  border: none;
  color: #a1a1aa;
  padding: 4px 12px;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.15s ease;
}

.os-tab.active {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.copy-btn {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #e4e4e7;
  padding: 4px 12px;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.15s ease;
}

.copy-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.terminal-content {
  padding: 18px 22px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.terminal-comment {
  color: #71717a;
  margin-bottom: 8px;
  font-size: 0.82rem;
}

.terminal-cmd-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.t-prompt {
  color: var(--accent-blue);
  margin-right: 8px;
  user-select: none;
}

.t-cmd {
  color: #e4e4e7;
  user-select: all;
}

.t-desc {
  font-size: 0.78rem;
  color: #a1a1aa;
  font-family: var(--font-sans);
}

/* Grand Close Section */
.close-section {
  padding: 120px 0;
  text-align: center;
}

.close-title {
  font-size: clamp(2.6rem, 5vw, 4.6rem);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.035em;
  margin-bottom: 22px;
  color: var(--ink-primary);
}

.close-desc {
  font-size: 1.25rem;
  color: var(--ink-secondary);
  line-height: 1.5;
  max-width: 40ch;
  margin: 0 auto 38px;
}

.bottom-actions-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.close-specs {
  font-size: 0.92rem;
  color: var(--ink-muted);
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-hair);
  padding: 40px 0;
  background: var(--bg-paper);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.9rem;
  color: var(--ink-secondary);
}

.footer-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

.footer-link {
  color: var(--ink-secondary);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-link:hover {
  color: var(--accent-blue);
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--ink-primary);
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 1000;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* Legal Pages (privacy.html & terms.html) */
.legal {
  max-width: 800px;
  margin: 40px auto 100px;
  padding: 0 24px;
}

.legal h1 {
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
  color: var(--ink-primary);
}

.legal .updated {
  font-size: 0.92rem;
  color: var(--ink-muted);
  margin-bottom: 36px;
  font-family: var(--font-mono);
}

.legal h2 {
  font-size: 1.5rem;
  font-weight: 650;
  margin: 36px 0 12px;
  color: var(--ink-primary);
  letter-spacing: -0.015em;
}

.legal p, .legal li {
  font-size: 1.05rem;
  color: var(--ink-secondary);
  line-height: 1.65;
  margin-bottom: 14px;
}

.legal ul {
  padding-left: 24px;
  margin-bottom: 24px;
}

.legal li {
  margin-bottom: 8px;
}

/* Responsive */
@media (max-width: 900px) {
  .narrative-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .preview-stage {
    position: static;
  }
  .feature-showcase-row, .feature-showcase-row.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: 30px;
  }
  .promises-grid {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
  }
}

@media (max-width: 600px) {
  .navbar-wrapper {
    padding: 10px 14px;
  }
  .navbar {
    padding: 0 8px 0 12px;
  }
  .nav-back-pill {
    font-size: 11px;
    padding: 4px 8px;
  }
  .brand-title {
    display: none;
  }
  .hero-actions {
    flex-direction: column;
  }
  .btn-pill {
    width: 100%;
  }
  .mascot-hint {
    display: none;
  }
  .keycaps-row {
    gap: 8px;
  }
  .keycap-btn {
    padding: 8px 12px;
    font-size: 0.85rem;
  }
}

/* ==========================================================================
   Native Mac Studio retrofit — flat toolbar, mono strip, numbered heads,
   display type, ink→accent buttons, accent underline marker.
   ========================================================================== */
body { font-feature-settings: normal; }
::selection { background: var(--accent-soft); color: var(--ink); }

/* Mono studio status strip */
.topstrip { border-bottom: 1px solid var(--line-faint); background: var(--surface-2);
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.04em; color: var(--ink-3); }
.topstrip-inner { max-width: 1140px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; height: 34px; }
.topstrip .dotok { color: #3f7d4e; }
:root[data-theme="dark"] .topstrip .dotok { color: #5cb570; }
.topstrip .sep { color: var(--ink-4); margin: 0 8px; }
@media (max-width: 640px) { .topstrip-right { display: none; } }

/* Flat full-width toolbar with bottom hairline */
.navbar-wrapper { padding: 0; pointer-events: auto;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line); }
.navbar { pointer-events: auto; max-width: 1140px; height: 64px;
  background: transparent; backdrop-filter: none; -webkit-backdrop-filter: none;
  border: none; border-radius: 0; box-shadow: none; padding: 0 24px; }
.brand-icon { border-radius: 8px; box-shadow: none; }
.brand-title { font-family: var(--display); font-weight: 700; }
.nav-back-pill { border-radius: 7px; font-family: var(--mono); font-weight: 500;
  font-size: 11.5px; background: var(--surface-2); border-color: var(--line); }
.nav-link { font-weight: 500; }
.nav-link:hover { color: var(--ink); }
.nav-cta { height: 40px; border-radius: 8px; background: var(--ink); color: var(--paper); font-weight: 600; }
.nav-cta:hover { background: var(--accent); color: #fff; }
:root[data-theme="dark"] .nav-cta { color: #1b1a16; }
:root[data-theme="dark"] .nav-cta:hover { color: #1b1a16; }

/* Display typography on headings */
.hero-title, .section-title, .close-title, .beat-heading,
.feature-showcase-text h3, .promise-card h3 { font-family: var(--display); letter-spacing: -0.03em; }
.hero-title { font-weight: 700; }
.hero-title-accent { color: var(--accent); }

/* Accent underline marker */
.title-highlight { position: relative; white-space: nowrap; color: var(--ink); }
.title-highlight::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0.06em;
  height: 0.26em; background: var(--accent-soft); border-bottom: 2px solid var(--accent); z-index: -1; }

/* Numbered mono section eyebrows */
body { counter-reset: musec; }
.section-label { display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 12px; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--accent); }
.section-label::before { counter-increment: musec; content: counter(musec, decimal-leading-zero);
  color: var(--ink-3); border: 1px solid var(--line-2); border-radius: 5px; padding: 2px 7px; font-size: 11px; }
.beat-keycap { font-family: var(--mono); color: var(--accent); }
.kbd-badge { font-family: var(--mono); background: var(--surface-2); border: 1px solid var(--line-2);
  border-radius: 6px; padding: 1px 7px; color: var(--ink); }
.hero-subtext { font-family: var(--mono); font-size: 12px; letter-spacing: 0.02em; color: var(--ink-3); }

/* Ink primary buttons that turn accent on hover; flat tight radius */
.btn-pill { border-radius: var(--radius); font-weight: 600; }
.btn-pill-primary { background: var(--ink); color: var(--paper); box-shadow: var(--shadow); }
.btn-pill-primary:hover { background: var(--accent); color: #fff; box-shadow: var(--shadow); transform: translateY(-1px); }
:root[data-theme="dark"] .btn-pill-primary { color: #1b1a16; }
:root[data-theme="dark"] .btn-pill-primary:hover { color: #1b1a16; }
.btn-pill-secondary { background: transparent; color: var(--ink); border: 1px solid var(--line-2); }
.btn-pill-secondary:hover { background: var(--surface-2); border-color: var(--ink); transform: translateY(-1px); }

/* Flat cards — hairline borders, tight radius */
.showcase-container, .feature-showcase-img-wrap, .preview-stage,
.key-tester-wrapper { border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.promise-card { padding: 28px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); }
.keycap-btn { border-radius: var(--radius); font-family: var(--mono); }
.close-section, .setup-section { background: var(--surface-2); }