/* Strata landing — Cursor-inspired dark theme */

:root {
  --bg: #0E1A2B;
  --bg-elevated: #132238;
  --bg-card: #172A42;
  --bg-card-hover: #1D344F;
  --text: #F7F1E8;
  --text-muted: #B9C7C9;
  --text-subtle: #849AA2;
  --border: rgba(226, 168, 106, 0.16);
  --border-strong: rgba(226, 168, 106, 0.3);
  --accent: #2DD4BF;
  --accent-cyan: #22D3EE;
  --accent-muted: rgba(45, 212, 191, 0.86);
  --glow: rgba(34, 211, 238, 0.18);
  --earth-1: #6B4A37;
  --earth-2: #9A6A47;
  --earth-3: #C2854F;
  --earth-4: #E2A86A;
  --success: #2DD4BF;
  --warning: #E2A86A;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --max-width: 1100px;
  --nav-height: 64px;
  --font: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: linear-gradient(180deg, #0E1A2B 0%, #132238 48%, #0E1A2B 100%);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 640px;
  line-height: 1.7;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(14, 26, 43, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  line-height: 1;
  min-width: max-content;
}

.nav-brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  flex: 0 0 36px;
  object-fit: cover;
}

.nav-brand-wordmark {
  display: flex;
  align-items: baseline;
  gap: 4px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0;
  white-space: nowrap;
}

.nav-brand-wordmark span:first-child {
  color: var(--text);
}

.nav-brand-wordmark span:last-child {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-toggle {
  display: flex;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.lang-toggle button {
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 6px 10px;
  cursor: pointer;
  transition: all var(--transition);
}

.lang-toggle button.active {
  background: var(--bg-card-hover);
  color: var(--text);
}

.lang-toggle button:hover:not(.active) {
  color: var(--text);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-cyan));
  color: var(--bg);
  border-color: rgba(34, 211, 238, 0.42);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-muted), var(--accent-cyan));
  box-shadow: 0 0 24px var(--glow);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  background: var(--bg-elevated);
  border-color: var(--text-muted);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 0.9375rem;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  padding: 8px;
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
}

/* Hero */
.hero {
  padding: 80px 0 96px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: radial-gradient(rgba(247, 241, 232, 0.045) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9) 0%, transparent 85%);
}

.hero::after {
  content: "";
  position: absolute;
  top: -120px;
  left: 50%;
  z-index: 0;
  transform: translateX(-50%);
  width: min(720px, 90vw);
  height: 360px;
  background: radial-gradient(ellipse at center, rgba(34, 211, 238, 0.14) 0%, transparent 70%);
  filter: blur(40px);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--text-muted);
  background: rgba(19, 34, 56, 0.72);
  border: 1px solid rgba(45, 212, 191, 0.22);
  border-radius: 999px;
  padding: 6px 14px;
  margin-bottom: 24px;
  box-shadow: inset 0 1px 0 rgba(247, 241, 232, 0.04);
}

.hero-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.85); }
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 12px;
}

.hero-title-line {
  display: block;
}

.hero-title-line:empty {
  display: none;
}

.hero-highlight {
  display: block;
  background: linear-gradient(135deg, var(--accent), var(--accent-cyan), var(--earth-4));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-wordmark {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--text), var(--accent-cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  width: fit-content;
}

.hero-subtitle {
  font-size: 1.0625rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 520px;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.hero-pill {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(19, 34, 56, 0.72);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 12px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Vibe gissing section */
.vibe-section {
  padding: 60px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(circle at 50% 0%, rgba(45, 212, 191, 0.08), transparent 42%),
    rgba(19, 34, 56, 0.42);
}

.vibe-section-title {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: 40px;
}

.vibe-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.vibe-step {
  text-align: center;
  padding: 24px 20px;
  background: rgba(23, 42, 66, 0.55);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition), background var(--transition);
}

.vibe-step:hover {
  border-color: rgba(45, 212, 191, 0.28);
  background: rgba(23, 42, 66, 0.78);
}

.vibe-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  margin-bottom: 14px;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(45, 212, 191, 0.1);
  border: 1px solid rgba(45, 212, 191, 0.24);
  border-radius: 50%;
}

.vibe-step h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.vibe-step p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* Demo carousel */
.demo-carousel {
  max-width: 1040px;
  margin: 48px auto 0;
  padding: 12px;
  background:
    radial-gradient(circle at 20% 0%, rgba(45, 212, 191, 0.13), transparent 32%),
    linear-gradient(180deg, rgba(247, 241, 232, 0.05), rgba(247, 241, 232, 0.015));
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: 0 28px 100px rgba(4, 10, 18, 0.62), inset 0 1px 0 rgba(247, 241, 232, 0.06);
}

.demo-carousel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 6px 6px 14px;
}

.demo-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.demo-tab,
.demo-control {
  font-family: var(--font);
  cursor: pointer;
  transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition);
}

.demo-tab {
  padding: 8px 14px;
  background: rgba(19, 34, 56, 0.72);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-muted);
  font-size: 0.8125rem;
  font-weight: 600;
}

.demo-tab:hover,
.demo-tab.active {
  color: var(--text);
  background: rgba(45, 212, 191, 0.11);
  border-color: rgba(45, 212, 191, 0.34);
}

.demo-tab:focus-visible,
.demo-control:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
}

.demo-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-subtle);
}

.demo-control {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(19, 34, 56, 0.8);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-muted);
  font-size: 0;
}

.demo-control:hover {
  color: var(--text);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.demo-control[data-demo-prev]::before {
  content: "‹";
  font-size: 1.35rem;
  line-height: 1;
}

.demo-control[data-demo-next]::before {
  content: "›";
  font-size: 1.35rem;
  line-height: 1;
}

.demo-count {
  min-width: 42px;
  font-size: 0.75rem;
  font-weight: 600;
  text-align: center;
}

.demo-viewport {
  background: rgba(9, 17, 29, 0.72);
  border: 1px solid rgba(247, 241, 232, 0.07);
  border-radius: 18px;
  overflow: hidden;
}

.demo-slide {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(260px, 0.75fr);
  min-height: 520px;
}

.demo-slide[hidden] {
  display: none !important;
}

.demo-frame {
  position: relative;
  background: #0A111D;
  border-right: 1px solid var(--border);
  overflow: hidden;
  margin: 0;
}

.demo-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(247, 241, 232, 0.08), transparent 18%);
  z-index: 1;
}

.demo-frame img {
  width: 100%;
  height: 100%;
  min-height: 520px;
  display: block;
  object-fit: cover;
}

.demo-caption {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 34px;
  background:
    linear-gradient(180deg, rgba(23, 42, 66, 0.54), rgba(14, 26, 43, 0.96)),
    radial-gradient(circle at 90% 18%, rgba(226, 168, 106, 0.15), transparent 32%);
}

.demo-kicker {
  width: fit-content;
  margin-bottom: 18px;
  padding: 6px 10px;
  border: 1px solid rgba(45, 212, 191, 0.24);
  border-radius: 999px;
  color: var(--accent);
  background: rgba(45, 212, 191, 0.08);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.demo-caption h3 {
  font-size: clamp(1.35rem, 3vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 14px;
}

.demo-caption p {
  color: var(--text-muted);
  line-height: 1.75;
  font-size: 0.98rem;
}

/* Mockup */
.mockup {
  background: var(--bg-elevated);
  border: 1px solid rgba(45, 212, 191, 0.2);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow:
    0 24px 80px rgba(4, 10, 18, 0.58),
    0 0 48px rgba(34, 211, 238, 0.08);
  animation: mockup-float 6s ease-in-out infinite;
}

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

.mockup-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}

.mockup-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-strong);
}

.mockup-dot:nth-child(1) { background: var(--earth-2); }
.mockup-dot:nth-child(2) { background: var(--earth-4); }
.mockup-dot:nth-child(3) { background: var(--accent); }

.mockup-body {
  display: grid;
  grid-template-columns: 1fr 280px;
  min-height: 320px;
}

.mockup-map {
  background:
    linear-gradient(164deg, transparent 0 32%, rgba(226, 168, 106, 0.82) 32.5% 43%, transparent 43.5%),
    linear-gradient(169deg, transparent 0 45%, rgba(194, 133, 79, 0.88) 45.5% 59%, transparent 59.5%),
    linear-gradient(173deg, transparent 0 61%, rgba(107, 74, 55, 0.92) 61.5% 78%, transparent 78.5%),
    linear-gradient(135deg, #132238 0%, #0E1A2B 100%);
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: 16px;
}

.mockup-map-label {
  font-size: 0.6875rem;
  color: rgba(247, 241, 232, 0.72);
  background: rgba(14, 26, 43, 0.62);
  padding: 4px 8px;
  border-radius: 4px;
}

.mockup-map-shapes {
  position: absolute;
  inset: 20%;
}

.mockup-map-shapes::before,
.mockup-map-shapes::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(34, 211, 238, 0.34);
  border-radius: 4px;
}

.mockup-map-shapes::before {
  top: 10%;
  left: 15%;
  width: 45%;
  height: 35%;
  background: rgba(34, 211, 238, 0.12);
}

.mockup-map-shapes::after {
  bottom: 20%;
  right: 10%;
  width: 35%;
  height: 40%;
  background: rgba(45, 212, 191, 0.12);
  border-color: rgba(45, 212, 191, 0.3);
}

.mockup-chat {
  background: var(--bg-card);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

.mockup-chat-header {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 0.75rem;
  font-weight: 600;
}

.mockup-modes {
  display: flex;
  gap: 4px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}

.mockup-mode {
  font-size: 0.625rem;
  padding: 4px 8px;
  border-radius: 4px;
  color: var(--text-subtle);
  background: transparent;
}

.mockup-mode.active {
  background: var(--bg-elevated);
  color: var(--text);
}

.mockup-messages {
  flex: 1;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: hidden;
}

.mockup-bubble {
  font-size: 0.6875rem;
  line-height: 1.5;
  padding: 8px 10px;
  border-radius: 8px;
  max-width: 95%;
}

.mockup-bubble.user {
  align-self: flex-end;
  background: rgba(45, 212, 191, 0.14);
  color: var(--text);
  font-family: var(--font-mono);
}

.mockup-bubble.ai {
  align-self: flex-start;
  background: var(--bg-elevated);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.mockup-input {
  margin: 0 10px 10px;
  padding: 8px 10px;
  font-size: 0.625rem;
  font-family: var(--font-mono);
  color: var(--text-subtle);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  min-height: 30px;
  display: flex;
  align-items: center;
}

.mockup-cursor {
  color: var(--accent-cyan);
  animation: blink-cursor 1s step-end infinite;
}

@keyframes blink-cursor {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Problems */
.problems-header {
  text-align: center;
  margin-bottom: 56px;
}

.problems-header .section-subtitle {
  margin: 0 auto;
}

.problems-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color var(--transition), background var(--transition);
}

.problem-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-strong);
}

.problem-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-size: 1rem;
}

.problem-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.problem-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  line-height: 1.6;
}

.problem-fix {
  font-size: 0.8125rem;
  color: var(--success);
  padding-top: 12px;
  border-top: 1px solid var(--border);
  line-height: 1.5;
}

/* Solution */
.solution-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}

.solution-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.solution-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.solution-card p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.solution-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.solution-features li {
  font-size: 0.875rem;
  color: var(--text-muted);
  padding-left: 20px;
  position: relative;
}

.solution-features li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--text-subtle);
}

/* Speed comparison */
.speed-section {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.speed-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}

.speed-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.speed-card.highlight {
  border-color: var(--border-strong);
  box-shadow: 0 0 40px var(--glow);
}

.speed-card-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 16px;
}

.speed-card h3 {
  font-size: 1rem;
  font-weight: 600;
}

.speed-time {
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.speed-card.highlight .speed-time {
  color: var(--success);
}

.speed-card p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color var(--transition);
}

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

.feature-number {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-subtle);
  margin-bottom: 12px;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Setup */
.setup-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 48px;
}

.setup-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.setup-block h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.setup-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.setup-steps > li {
  display: flex;
  gap: 14px;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.step-num {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text);
}

.setup-sublist {
  list-style: none;
  margin-top: 8px;
  padding-left: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.setup-sublist li {
  font-size: 0.875rem;
  padding-left: 14px;
  position: relative;
}

.setup-sublist li::before {
  content: "·";
  position: absolute;
  left: 0;
  color: var(--text-subtle);
}

.privacy-box {
  margin-top: 20px;
  padding: 16px;
  background: rgba(226, 168, 106, 0.08);
  border: 1px solid rgba(226, 168, 106, 0.2);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--warning);
  line-height: 1.6;
}

.index-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.index-list li {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.7;
  padding-left: 20px;
  position: relative;
}

.index-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-subtle);
}

/* Download */
.download-header {
  text-align: center;
  margin-bottom: 48px;
}

.download-header .section-subtitle {
  margin: 0 auto 24px;
}

.download-status {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  margin: 0 auto 20px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.download-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition), transform var(--transition);
}

.download-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.download-os {
  font-size: 2rem;
  margin-bottom: 12px;
}

.download-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.download-sub {
  font-size: 0.8125rem;
  color: var(--text-subtle);
  margin-bottom: 16px;
}

.download-file {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 12px;
}

.download-note {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 20px;
}

.download-card .btn {
  width: 100%;
}

/* Footer */
.footer {
  padding: 48px 0;
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-brand strong {
  font-size: 0.9375rem;
}

.footer-brand span {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.footer-disclaimer {
  max-width: 560px;
  font-size: 0.75rem;
  color: var(--text-subtle);
  line-height: 1.5;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

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

/* Responsive */
@media (max-width: 960px) {
  .hero-grid,
  .vibe-steps,
  .solution-grid,
  .speed-compare,
  .setup-grid,
  .features-grid,
  .download-grid {
    grid-template-columns: 1fr;
  }

  .mockup-body {
    grid-template-columns: 1fr;
  }

  .mockup-chat {
    border-left: none;
    border-top: 1px solid var(--border);
  }

  .demo-carousel-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .demo-slide {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .demo-frame {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .demo-frame img {
    height: auto;
    min-height: 0;
    object-fit: contain;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
  }

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

  .nav-links a {
    padding: 12px 0;
    width: 100%;
  }

  .nav-toggle {
    display: block;
  }

  .navbar .container {
    position: relative;
  }

  .nav-actions .btn-primary {
    display: none;
  }
}

@media (max-width: 600px) {
  .section {
    padding: 64px 0;
  }

  .hero {
    padding: 48px 0 64px;
  }

  .hero-cta {
    flex-direction: column;
  }

  .hero-cta .btn {
    width: 100%;
  }

  .demo-carousel {
    margin-top: 36px;
    padding: 8px;
    border-radius: 18px;
  }

  .demo-tabs {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr;
  }

  .demo-tab {
    width: 100%;
    text-align: left;
  }

  .demo-controls {
    width: 100%;
    justify-content: space-between;
  }

  .demo-viewport {
    border-radius: 14px;
  }

  .demo-caption {
    padding: 24px;
  }

  .footer-grid {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 380px) {
  .nav-brand-wordmark {
    font-size: 0.92rem;
  }

  .nav-brand {
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-badge::before,
  .mockup,
  .mockup-cursor {
    animation: none;
  }
}