/* ThoughtLock landing — dark + light themes */
:root {
  --radius: 14px;
  --radius-sm: 8px;
  --font: "Inter", "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Consolas", monospace;
  --nav-h: 72px;
  --max-w: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  /* semantic accents (shared) */
  --laurie: #9bb7ff;
  --max: #ffb199;
  --pensiero: #9adbc5;
  --success: #2dd4a3;
  --warning: #f59e0b;
  --danger: #f87171;
  --col-triage: #9b85fd;
  --col-intent: #60a5fa;
  --col-exec: #7c5cfc;
  --col-cyan: #22d3ee;
  --col-amber: #f59e0b;

  /* product mockups stay dark in both themes (real app UI) */
  --mock-bg: #10151c;
  --mock-card: #1a212b;
  --mock-border: #2a3548;
  --mock-border-soft: #3a4658;
  --mock-phone-bg: #0f1419;
  --mock-board-bg: #0a0b10;
  --mock-board-col: #171a23;
  --mock-board-card: #1d202b;
  --mock-live-bg: #121820;
  --mock-detail-bg: #171a23;
  --mock-user: #9db8e8;
  --mock-laurie: #8fd3b6;
  --mock-max: #f0b37e;
  --mock-live-partial: #7a8fa8;
  --mock-btn-fg: #0d1117;
  --mock-pensiero-btn-bg: #1c2430;
  --mock-frame-inner: linear-gradient(180deg, #121820 0%, #0a0d12 100%);
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #050608;
  --bg-elevated: #0f1419;
  --surface: #151b22;
  --surface-hi: #1a212b;
  --card: #12141c;
  --border: #252936;
  --border-hi: #3a4658;
  --text: #f4f5f7;
  --text-muted: #a2a9b8;
  --text-subtle: #6b7285;
  --accent: #7c9cff;
  --accent-bright: #9bb7ff;
  --accent-fg: #0b1220;
  --accent-glow: rgba(124, 156, 255, 0.35);
  --nav-scrolled-bg: rgba(5, 6, 8, 0.85);
  --nav-mobile-bg: rgba(5, 6, 8, 0.95);
  --hero-glow: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(124, 156, 255, 0.18), transparent 70%),
    radial-gradient(ellipse 40% 30% at 80% 20%, rgba(154, 219, 197, 0.08), transparent 60%);
  --eyebrow-bg: rgba(21, 27, 34, 0.6);
  --frame-shadow: 0 0 0 1px rgba(255, 255, 255, 0.03), 0 32px 64px rgba(0, 0, 0, 0.55), 0 0 80px rgba(124, 156, 255, 0.08);
  --frame-overlay: radial-gradient(circle at 30% 0%, rgba(124, 156, 255, 0.06), transparent 50%);
  --laurie-bg: #1a2740;
  --max-bg: #2a1e1c;
  --pensiero-bg: #1e3a31;
  --section-tint: linear-gradient(180deg, rgba(21, 27, 34, 0.4), transparent);
  --board-section-bg: radial-gradient(ellipse 70% 50% at 80% 20%, rgba(124, 92, 252, 0.08), transparent 60%),
    linear-gradient(180deg, rgba(10, 11, 16, 0.5), transparent);
  --board-feat-bg: rgba(21, 27, 34, 0.55);
  --cta-bg: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(124, 156, 255, 0.12), transparent), var(--surface);
  --feature-icon-bg: rgba(124, 156, 255, 0.12);
  --feature-accent-bg: linear-gradient(180deg, rgba(124, 92, 252, 0.06), var(--surface));
  --feature-accent-icon: rgba(124, 92, 252, 0.18);
  --input-bg: var(--bg);
  --chip-bg: var(--surface);
  --lang-switch-bg: var(--surface);
  --theme-color: #050608;
}

[data-theme="light"] {
  color-scheme: light;
  --bg: #f6f7fa;
  --bg-elevated: #ffffff;
  --surface: #ffffff;
  --surface-hi: #f0f3f8;
  --card: #eef1f6;
  --border: #d8dee8;
  --border-hi: #bec7d6;
  --text: #0f1419;
  --text-muted: #4f5969;
  --text-subtle: #727d90;
  --accent: #4f73e6;
  --accent-bright: #3b5ed4;
  --accent-fg: #ffffff;
  --accent-glow: rgba(79, 115, 230, 0.28);
  --nav-scrolled-bg: rgba(246, 247, 250, 0.9);
  --nav-mobile-bg: rgba(255, 255, 255, 0.98);
  --hero-glow: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(79, 115, 230, 0.14), transparent 70%),
    radial-gradient(ellipse 40% 30% at 80% 20%, rgba(45, 158, 120, 0.1), transparent 60%);
  --eyebrow-bg: rgba(255, 255, 255, 0.92);
  --frame-shadow: 0 0 0 1px rgba(15, 20, 25, 0.06), 0 24px 48px rgba(15, 20, 25, 0.1), 0 0 60px rgba(79, 115, 230, 0.08);
  --frame-overlay: radial-gradient(circle at 30% 0%, rgba(79, 115, 230, 0.05), transparent 50%);
  --laurie-bg: #e8eefc;
  --max-bg: #fceee8;
  --pensiero-bg: #e6f5ef;
  --section-tint: linear-gradient(180deg, rgba(255, 255, 255, 0.85), transparent);
  --board-section-bg: radial-gradient(ellipse 70% 50% at 80% 20%, rgba(79, 115, 230, 0.07), transparent 60%),
    linear-gradient(180deg, rgba(240, 243, 248, 0.9), transparent);
  --board-feat-bg: rgba(255, 255, 255, 0.92);
  --cta-bg: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(79, 115, 230, 0.1), transparent), var(--surface);
  --feature-icon-bg: rgba(79, 115, 230, 0.1);
  --feature-accent-bg: linear-gradient(180deg, rgba(79, 115, 230, 0.07), var(--surface));
  --feature-accent-icon: rgba(79, 115, 230, 0.14);
  --input-bg: #ffffff;
  --chip-bg: var(--surface-hi);
  --lang-switch-bg: var(--surface-hi);
  --theme-color: #f6f7fa;
}

/* default before JS */
html:not([data-theme]) {
  color-scheme: dark;
  --bg: #050608;
  --bg-elevated: #0f1419;
  --surface: #151b22;
  --surface-hi: #1a212b;
  --card: #12141c;
  --border: #252936;
  --border-hi: #3a4658;
  --text: #f4f5f7;
  --text-muted: #a2a9b8;
  --text-subtle: #6b7285;
  --accent: #7c9cff;
  --accent-bright: #9bb7ff;
  --accent-fg: #0b1220;
  --accent-glow: rgba(124, 156, 255, 0.35);
  --nav-scrolled-bg: rgba(5, 6, 8, 0.85);
  --nav-mobile-bg: rgba(5, 6, 8, 0.95);
  --hero-glow: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(124, 156, 255, 0.18), transparent 70%),
    radial-gradient(ellipse 40% 30% at 80% 20%, rgba(154, 219, 197, 0.08), transparent 60%);
  --eyebrow-bg: rgba(21, 27, 34, 0.6);
  --frame-shadow: 0 0 0 1px rgba(255, 255, 255, 0.03), 0 32px 64px rgba(0, 0, 0, 0.55), 0 0 80px rgba(124, 156, 255, 0.08);
  --frame-overlay: radial-gradient(circle at 30% 0%, rgba(124, 156, 255, 0.06), transparent 50%);
  --laurie-bg: #1a2740;
  --max-bg: #2a1e1c;
  --pensiero-bg: #1e3a31;
  --section-tint: linear-gradient(180deg, rgba(21, 27, 34, 0.4), transparent);
  --board-section-bg: radial-gradient(ellipse 70% 50% at 80% 20%, rgba(124, 92, 252, 0.08), transparent 60%),
    linear-gradient(180deg, rgba(10, 11, 16, 0.5), transparent);
  --board-feat-bg: rgba(21, 27, 34, 0.55);
  --cta-bg: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(124, 156, 255, 0.12), transparent), var(--surface);
  --feature-icon-bg: rgba(124, 156, 255, 0.12);
  --feature-accent-bg: linear-gradient(180deg, rgba(124, 92, 252, 0.06), var(--surface));
  --feature-accent-icon: rgba(124, 92, 252, 0.18);
  --input-bg: var(--bg);
  --chip-bg: var(--surface);
  --lang-switch-bg: var(--surface);
  --theme-color: #050608;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

.container {
  width: min(var(--max-w), calc(100% - 2.5rem));
  margin-inline: auto;
}

/* ---- Nav ---- */
.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}

.nav.scrolled {
  background: var(--nav-scrolled-bg);
  backdrop-filter: blur(16px);
  border-color: var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.logo-mark-img {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  display: block;
}

.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent) 0%, #5b7fd4 100%);
  display: grid;
  place-items: center;
  font-size: 0.85rem;
  color: #0b1220;
  font-weight: 800;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.92rem;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.lang-switch {
  display: flex;
  padding: 3px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--lang-switch-bg);
}

.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--lang-switch-bg);
  color: var(--text-muted);
  display: grid;
  place-items: center;
  font-size: 1rem;
  line-height: 1;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.theme-toggle:hover {
  color: var(--text);
  border-color: var(--accent);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-sun {
  display: block;
}

[data-theme="light"] .theme-toggle .icon-moon {
  display: block;
}

html:not([data-theme]) .theme-toggle .icon-sun {
  display: block;
}

.lang-btn {
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: all 0.2s var(--ease);
}

.lang-btn.active {
  background: var(--accent);
  color: var(--accent-fg);
}

.nav-cta {
  padding: 0.55rem 1.15rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-fg);
  font-weight: 600;
  font-size: 0.9rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.menu-toggle {
  display: none;
  color: var(--text);
  font-size: 1.4rem;
  padding: 0.25rem;
}

/* ---- Hero ---- */
.hero {
  padding: calc(var(--nav-h) + 4rem) 0 5rem;
  position: relative;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  inset: -20% -10% auto;
  height: 70%;
  background: var(--hero-glow);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--eyebrow-bg);
  color: var(--text-muted);
  font-size: 0.82rem;
  margin-bottom: 1.25rem;
}

.hero-eyebrow .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 0 0 1.25rem;
  font-weight: 700;
}

.hero h1 .accent,
[data-theme="dark"] .hero h1 .accent,
html:not([data-theme]) .hero h1 .accent {
  background: linear-gradient(90deg, var(--accent-bright), var(--pensiero));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

[data-theme="light"] .hero h1 .accent {
  background: linear-gradient(90deg, var(--accent-bright), #2a9d7a);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  font-size: 1.12rem;
  color: var(--text-muted);
  max-width: 34rem;
  margin: 0 0 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 2.5rem;
}

.btn-primary {
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-fg);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px var(--accent-glow);
}

.btn-secondary {
  padding: 0.85rem 1.4rem;
  border-radius: 999px;
  border: 1px solid var(--border-hi);
  color: var(--text);
  font-weight: 500;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: border-color 0.2s, background 0.2s;
}

.btn-secondary:hover {
  border-color: var(--accent);
  background: rgba(124, 156, 255, 0.06);
}

.hero-stats {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.stat-value {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-subtle);
}

/* ---- Product preview ---- */
.preview-shell {
  position: relative;
}

.preview-tabs {
  display: flex;
  gap: 0.35rem;
  margin-bottom: 0.85rem;
  padding: 0.35rem;
  background: var(--surface);
  border-radius: 999px;
  border: 1px solid var(--border);
  width: fit-content;
}

.preview-tab {
  padding: 0.45rem 1rem;
  border-radius: 999px;
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: all 0.25s var(--ease);
}

.preview-tab.active {
  background: var(--accent);
  color: var(--accent-fg);
  font-weight: 600;
}

.preview-frame {
  position: relative;
  border-radius: calc(var(--radius) + 4px);
  border: 1px solid var(--border-hi);
  background: var(--mock-frame-inner);
  box-shadow: var(--frame-shadow);
  overflow: hidden;
  aspect-ratio: 16 / 11;
}

.preview-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--frame-overlay);
  pointer-events: none;
  z-index: 1;
}

.preview-panel {
  display: none;
  height: 100%;
  animation: fadeUp 0.45s var(--ease);
}

.preview-panel.active {
  display: block;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Desktop mockup */
.mock-desktop {
  display: flex;
  flex-direction: column;
  height: 100%;
  font-size: clamp(0.62rem, 1.1vw, 0.78rem);
}

.mock-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.85rem;
  background: var(--mock-bg);
  border-bottom: 1px solid var(--border);
}

.mock-dots {
  display: flex;
  gap: 0.35rem;
}

.mock-dots span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--mock-border-soft);
}

.mock-dots span:first-child { background: #ef5350; }
.mock-dots span:nth-child(2) { background: #ffb74d; }
.mock-dots span:nth-child(3) { background: #66bb6a; }

.mock-title {
  color: var(--text-muted);
  font-size: 0.75em;
}

.mock-version {
  font-size: 0.68em;
  font-weight: 500;
  color: var(--text-subtle);
  font-family: ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace;
  white-space: nowrap;
}

.mock-card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.mock-card-head h4 {
  margin: 0;
}

.preview-caption {
  margin: 0.85rem 0 0;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--text-subtle);
  text-align: center;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
}

.build-snapshot {
  margin: 0 0 2rem;
  padding: 1rem 1.15rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
}

.build-snapshot-title {
  margin: 0 0 0.35rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.build-snapshot-note {
  margin: 0 0 0.85rem;
  font-size: 0.88rem;
  color: var(--text-subtle);
  line-height: 1.45;
}

.build-snapshot-list {
  margin: 0;
  display: grid;
  gap: 0.55rem;
}

.build-snapshot-row {
  display: grid;
  grid-template-columns: minmax(8rem, 1.2fr) minmax(0, 2fr);
  gap: 0.75rem;
  align-items: baseline;
  padding-top: 0.55rem;
  border-top: 1px solid var(--border);
}

.build-snapshot-row:first-child {
  padding-top: 0;
  border-top: none;
}

.build-snapshot-row dt {
  margin: 0;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
}

.build-snapshot-row dd {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.65rem;
  align-items: baseline;
}

.build-snapshot-version {
  font-family: ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace;
  font-size: 0.82rem;
  color: var(--accent);
}

.build-snapshot-meta {
  font-size: 0.78rem;
  color: var(--text-subtle);
}

.product-version {
  display: inline-block;
  margin: 0.15rem 0 0.5rem;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-family: ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace;
  color: var(--accent);
  background: var(--feature-icon-bg);
  border: 1px solid var(--border);
}

.mock-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--mock-bg);
  padding: 0.75rem 0.85rem 0.65rem;
  min-height: 0;
}

.mock-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.5rem;
}

.mock-header h3 {
  margin: 0;
  font-size: 1.35em;
  font-weight: 700;
}

.mock-header p {
  margin: 0.2rem 0 0;
  color: var(--text-muted);
  font-size: 0.85em;
}

.mock-header-actions {
  display: flex;
  gap: 0.35rem;
}

.mock-chip {
  padding: 0.25rem 0.55rem;
  border-radius: 6px;
  background: var(--mock-card);
  color: var(--text-muted);
  font-size: 0.78em;
}

.mock-chat {
  flex: 1;
  background: var(--mock-card);
  border-radius: 8px;
  padding: 0.65rem 0.75rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  min-height: 0;
}

.mock-msg {
  line-height: 1.45;
}

.mock-msg .who {
  font-weight: 700;
  font-size: 0.82em;
  margin-right: 0.35rem;
}

.mock-msg.user .who { color: var(--mock-user); }
.mock-msg.laurie .who { color: var(--mock-laurie); }
.mock-msg.max .who { color: var(--mock-max); }
.mock-msg.system { color: var(--text-subtle); font-size: 0.88em; }

.mock-modebar {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.55rem;
}

.mock-modebar button {
  flex: 1;
  padding: 0.55rem;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.92em;
}

.mock-modebar .chat-btn {
  background: var(--accent);
  color: var(--mock-btn-fg);
}

.mock-modebar .pensiero-btn {
  background: var(--mock-card);
  color: var(--pensiero);
}

.mock-status {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.88em;
  margin-top: 0.45rem;
}

/* Android mockup */
.mock-phone-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 1rem;
  background: radial-gradient(circle at 50% 30%, rgba(124, 156, 255, 0.08), transparent 60%);
}

.mock-phone {
  width: min(72%, 260px);
  height: 92%;
  border-radius: 28px;
  border: 2px solid var(--mock-border);
  background: var(--mock-phone-bg);
  padding: 0.55rem;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
  display: flex;
  flex-direction: column;
}

.mock-phone-notch {
  width: 38%;
  height: 5px;
  background: var(--mock-border);
  border-radius: 999px;
  margin: 0.15rem auto 0.45rem;
}

.mock-phone-screen {
  flex: 1;
  border-radius: 20px;
  background: var(--mock-phone-bg);
  padding: 0.65rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-size: clamp(0.55rem, 1vw, 0.68rem);
}

.mock-card {
  background: var(--surface);
  border: 1px solid var(--border-hi);
  border-radius: 10px;
  padding: 0.55rem;
}

.mock-card h4 {
  margin: 0 0 0.35rem;
  font-size: 1.15em;
}

.mock-status-row {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
}

.mock-status-row .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
}

.mock-live {
  margin-top: 0.35rem;
  padding: 0.4rem 0.5rem;
  border-radius: 8px;
  background: var(--mock-live-bg);
}

.mock-live label {
  display: block;
  font-size: 0.72em;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.mock-live p {
  margin: 0.2rem 0 0;
  font-weight: 700;
  font-size: 1em;
}

.mock-live .partial {
  color: var(--mock-live-partial);
  font-weight: 400;
}

.mock-source-toggle {
  display: flex;
  gap: 0.25rem;
  margin-top: 0.35rem;
}

.mock-source-toggle span {
  flex: 1;
  text-align: center;
  padding: 0.3rem;
  border-radius: 6px;
  font-size: 0.85em;
  border: 1px solid var(--border);
}

.mock-source-toggle span.on {
  background: rgba(124, 156, 255, 0.15);
  border-color: var(--accent);
  color: var(--accent-bright);
}

.mock-links {
  display: flex;
  justify-content: space-between;
  font-size: 0.82em;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.mock-links .ok { color: var(--success); }

.mock-phone-actions {
  display: flex;
  gap: 0.35rem;
  margin-top: auto;
}

.mock-phone-actions button {
  flex: 1;
  padding: 0.45rem;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.88em;
}

.mock-phone-actions .chat {
  background: var(--accent);
  color: var(--accent-fg);
}

.mock-phone-actions .thought {
  background: var(--mock-pensiero-btn-bg);
  color: var(--pensiero);
}

.mock-bubble {
  padding: 0.35rem 0.5rem;
  border-radius: 10px;
  max-width: 88%;
  font-size: 0.92em;
  line-height: 1.4;
}

.mock-bubble.laurie {
  background: var(--laurie-bg);
  align-self: flex-start;
}

.mock-bubble.user {
  background: var(--pensiero-bg);
  align-self: flex-end;
}

/* Task Board mockup */
.mock-board {
  display: flex;
  flex-direction: column;
  height: 100%;
  font-size: clamp(0.5rem, 0.95vw, 0.68rem);
  background: var(--mock-board-bg);
}

.mock-board-header {
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
}

.mock-board-header h3 {
  margin: 0;
  font-size: 1.2em;
}

.mock-board-header span:not(.mock-version) {
  color: var(--text-muted);
  font-size: 0.85em;
}

.mock-board-cols {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 0.35rem;
  padding: 0.5rem;
  min-height: 0;
  overflow: hidden;
}

.mock-col {
  background: var(--mock-board-col);
  border-radius: 6px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.mock-col-head {
  padding: 0.35rem 0.4rem;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  font-size: 0.82em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mock-col-head.library { color: var(--success); }
.mock-col-head.triage { color: var(--col-triage); }
.mock-col-head.intento { color: var(--col-intent); }
.mock-col-head.esec { color: var(--col-exec); }

.mock-task-card {
  margin: 0.35rem;
  padding: 0.35rem 0.4rem 0.35rem 0.55rem;
  border-radius: 5px;
  border: 1px solid var(--border);
  background: var(--mock-board-card);
  border-left: 3px solid;
  font-size: 0.88em;
  line-height: 1.35;
}

.mock-task-card.purple { border-left-color: var(--col-exec); }
.mock-task-card.cyan { border-left-color: var(--col-cyan); }
.mock-task-card.green { border-left-color: var(--success); }
.mock-task-card.amber { border-left-color: var(--col-amber); }

.mock-task-card .meta {
  color: var(--text-subtle);
  font-size: 0.82em;
  margin-top: 0.15rem;
}

.mock-task-card.selected {
  border-color: rgba(124, 156, 255, 0.55);
  box-shadow: 0 0 0 1px rgba(124, 156, 255, 0.2);
}

/* ---- Task Board section ---- */
.board-section {
  padding: 5.5rem 0;
  border-block: 1px solid var(--border);
  background: var(--board-section-bg);
}

.board-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 3rem;
  align-items: start;
}

.board-copy .section-title {
  max-width: 22ch;
}

.board-columns {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 2rem 0 1.75rem;
}

.board-col-pill {
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
}

.board-col-pill.library { color: var(--success); border-color: rgba(45, 212, 163, 0.35); }
.board-col-pill.triage { color: var(--col-triage); border-color: rgba(155, 133, 253, 0.35); }
.board-col-pill.intent { color: var(--col-intent); border-color: rgba(96, 165, 250, 0.35); }
.board-col-pill.exec { color: var(--col-exec); border-color: rgba(124, 92, 252, 0.35); }
.board-col-pill.report { color: var(--success); border-color: rgba(45, 212, 163, 0.25); }

.board-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.board-feat {
  padding: 1rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--board-feat-bg);
}

.board-feat h3 {
  margin: 0 0 0.4rem;
  font-size: 0.95rem;
}

.board-feat p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

.board-cta {
  display: inline-flex;
}

.board-frame {
  aspect-ratio: 16 / 11;
}

.board-large {
  font-size: clamp(0.52rem, 0.9vw, 0.66rem);
}

.mock-board-detail {
  padding: 0.45rem 0.5rem 0;
  border-bottom: 1px solid var(--border);
}

.mock-detail-panel {
  padding: 0.5rem 0.65rem;
  border-radius: 6px;
  border: 1px solid var(--border-hi);
  background: var(--mock-board-col);
}

.mock-detail-panel strong {
  display: block;
  font-size: 1.05em;
  margin-bottom: 0.2rem;
}

.mock-detail-phase {
  display: inline-block;
  margin-bottom: 0.35rem;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  font-size: 0.82em;
  font-weight: 600;
  color: var(--col-exec);
  background: var(--feature-accent-icon);
}

.mock-detail-panel p {
  margin: 0;
  color: #a2a9b8;
  font-size: 0.92em;
  line-height: 1.4;
}

.feature-card-accent {
  border-color: rgba(124, 92, 252, 0.35);
  background: var(--feature-accent-bg);
}

.feature-card-accent .feature-icon {
  background: var(--feature-accent-icon);
}

/* ---- Sections ---- */
section {
  padding: 5.5rem 0;
}

.section-eyebrow {
  color: var(--accent-bright);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin: 0 0 1rem;
  max-width: 18ch;
}

.section-lead {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 52ch;
  margin: 0;
}

.problem {
  border-block: 1px solid var(--border);
  background: var(--section-tint);
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.quote-block {
  padding: 2rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  position: relative;
}

.quote-block::before {
  content: "\201C";
  position: absolute;
  top: 0.5rem;
  left: 1rem;
  font-size: 4rem;
  line-height: 1;
  color: var(--accent);
  opacity: 0.25;
}

.quote-block p {
  margin: 0;
  font-size: 1.15rem;
  line-height: 1.55;
  position: relative;
  z-index: 1;
}

.quote-block footer {
  margin-top: 1.25rem;
  color: var(--text-subtle);
  font-size: 0.88rem;
}

/* Workflow */
.workflow-tabs {
  display: flex;
  gap: 0.5rem;
  margin: 2.5rem 0 2rem;
  flex-wrap: wrap;
}

.workflow-tab {
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  color: var(--text-muted);
  text-align: left;
  min-width: 160px;
  transition: all 0.25s var(--ease);
}

.workflow-tab strong {
  display: block;
  color: var(--text);
  margin-bottom: 0.15rem;
}

.workflow-tab span {
  font-size: 0.82rem;
}

.workflow-tab.active {
  border-color: var(--accent);
  background: rgba(124, 156, 255, 0.08);
}

.workflow-tab.active strong {
  color: var(--accent-bright);
}

.workflow-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.workflow-panel {
  display: none;
}

.workflow-panel.active {
  display: contents;
  animation: fadeUp 0.4s var(--ease);
}

.workflow-text h3 {
  font-size: 1.5rem;
  margin: 0 0 0.75rem;
}

.workflow-text p {
  color: var(--text-muted);
  margin: 0 0 1rem;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.feature-list li {
  padding: 0.55rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--text-muted);
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.95rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.workflow-visual {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 1.5rem;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Pipeline diagram */
.pipeline {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.pipeline-node {
  padding: 0.65rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-hi);
  background: var(--card);
  font-size: 0.88rem;
  font-weight: 500;
  text-align: center;
}

.pipeline-node.highlight {
  border-color: var(--accent);
  background: rgba(124, 156, 255, 0.1);
  color: var(--accent-bright);
}

.pipeline-arrow {
  color: var(--text-subtle);
  font-size: 1.1rem;
}

/* Personas */
.personas-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.persona-card {
  padding: 1.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  transition: border-color 0.25s, transform 0.25s;
}

.persona-card:hover {
  transform: translateY(-3px);
}

.persona-card.laurie {
  border-color: rgba(155, 183, 255, 0.3);
}

.persona-card.max {
  border-color: rgba(255, 177, 153, 0.3);
}

.persona-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.35rem;
}

.persona-card.laurie h3 { color: var(--laurie); }
.persona-card.max h3 { color: var(--max); }

.persona-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.persona-tag {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.78rem;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-subtle);
}

/* Features grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.feature-card {
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  transition: border-color 0.25s;
}

.feature-card:hover {
  border-color: var(--border-hi);
}

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  margin-bottom: 1rem;
  background: var(--feature-icon-bg);
}

.feature-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.feature-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* Architecture */
.arch-flow {
  margin-top: 2.5rem;
  padding: 2rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
  font-family: var(--font-mono);
  font-size: clamp(0.72rem, 1.2vw, 0.88rem);
  color: var(--text-muted);
  line-height: 1.8;
  overflow-x: auto;
  white-space: pre;
}

/* CTA */
.cta-section {
  padding: 4rem 0 6rem;
}

/* FAQ — SEO + GEO: citable Q&A blocks */
.faq-section {
  padding: 5rem 0;
  border-top: 1px solid var(--border);
}

.faq-list {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  overflow: hidden;
}

.faq-item summary {
  padding: 1rem 1.15rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  color: var(--accent-bright);
  font-size: 1.2rem;
  font-weight: 400;
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-answer {
  padding: 0 1.15rem 1rem;
  border-top: 1px solid var(--border);
}

.faq-answer p {
  margin: 0.85rem 0 0;
  color: var(--text-muted);
  line-height: 1.6;
}

.cta-box {
  padding: 3.5rem;
  border-radius: calc(var(--radius) + 6px);
  border: 1px solid var(--border-hi);
  background: var(--cta-bg);
  text-align: center;
}

.cta-box h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.cta-box p {
  color: var(--text-muted);
  margin: 0 0 1.75rem;
  font-size: 1.05rem;
}

.waitlist-form {
  display: flex;
  gap: 0.65rem;
  max-width: 420px;
  margin: 0 auto;
  flex-wrap: wrap;
  justify-content: center;
}

.waitlist-form input {
  flex: 1;
  min-width: 220px;
  padding: 0.85rem 1.1rem;
  border-radius: 999px;
  border: 1px solid var(--border-hi);
  background: var(--input-bg);
  color: var(--text);
  font: inherit;
}

.waitlist-form input:focus {
  outline: none;
  border-color: var(--accent);
}

.form-note {
  margin-top: 1rem;
  font-size: 0.82rem;
  color: var(--text-subtle);
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.92rem;
  max-width: 32ch;
  margin: 0.75rem 0 0;
}

.footer-col h4 {
  margin: 0 0 0.85rem;
  font-size: 0.85rem;
  color: var(--text-subtle);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.footer-col a {
  display: block;
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 0.45rem;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--text);
}

.footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  color: var(--text-subtle);
  font-size: 0.82rem;
}

/* Reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 960px) {
  .hero-grid,
  .problem-grid,
  .workflow-content,
  .board-grid,
  .personas-grid,
  .features-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 2.5rem;
  }

  .preview-frame {
    aspect-ratio: 4 / 3;
  }

  .mock-board-cols {
    grid-template-columns: repeat(4, 1fr);
  }

  .build-snapshot-row {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .preview-caption {
    font-size: 0.78rem;
    padding: 0 0.5rem;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 1.25rem;
    background: var(--nav-mobile-bg);
    border-bottom: 1px solid var(--border);
    gap: 1rem;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-actions .nav-cta {
    display: none;
  }

  .menu-toggle {
    display: block;
  }
}

@media (max-width: 600px) {
  .hero-stats {
    gap: 1.25rem;
  }

  .workflow-tabs {
    flex-direction: column;
  }

  .workflow-tab {
    min-width: 100%;
  }

  .board-features {
    grid-template-columns: 1fr;
  }

  .cta-box {
    padding: 2rem 1.25rem;
  }
}