/* ===== LANDING PAGE MODERN THEME ===== */
/* Palette: OKLCH, deep navy-teal base, vibrant teal accent, warm amber highlights */
/* Supports dark (default) and light modes via data-theme */

:root {
  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --bg-base: oklch(15% 0.015 260);
  --bg-surface: oklch(22% 0.02 260);
  --bg-elevated: oklch(28% 0.025 260);
  --bg-raised: oklch(34% 0.03 260);
  --text-primary: oklch(97% 0.005 260);
  --text-secondary: oklch(72% 0.02 260);
  --text-muted: oklch(55% 0.02 260);
  --accent: oklch(70% 0.14 170);
  --accent-dim: oklch(58% 0.11 170);
  --accent-glow: oklch(70% 0.14 170 / 0.35);
  --accent-warm: oklch(78% 0.12 80);
  --border: oklch(32% 0.02 260 / 0.45);
  --border-subtle: oklch(32% 0.02 260 / 0.2);
  --danger: oklch(58% 0.16 25);
  --success: oklch(65% 0.14 160);
  --hero-glow-1: oklch(25% 0.04 270 / 0.35);
  --hero-glow-2: oklch(22% 0.03 260 / 0.25);
  --hero-gradient: oklch(30% 0.04 270 / 0.2);
  --screen-gradient-start: oklch(24% 0.03 270);
  --screen-gradient-end: oklch(18% 0.02 260);
  --nav-bg: var(--bg-base);
  --nav-bg-mobile: var(--bg-base);
  --controls-bg: oklch(10% 0.01 260 / 0.75);
}

[data-theme="light"] {
  --bg-base: oklch(97% 0.005 260);
  --bg-surface: oklch(93% 0.01 260);
  --bg-elevated: oklch(88% 0.01 260);
  --bg-raised: oklch(82% 0.015 260);
  --text-primary: oklch(20% 0.02 260);
  --text-secondary: oklch(45% 0.03 260);
  --text-muted: oklch(60% 0.03 260);
  --accent: oklch(60% 0.14 170);
  --accent-dim: oklch(50% 0.11 170);
  --accent-glow: oklch(60% 0.14 170 / 0.25);
  --accent-warm: oklch(72% 0.12 80);
  --border: oklch(80% 0.02 260 / 0.45);
  --border-subtle: oklch(85% 0.02 260 / 0.35);
  --danger: oklch(55% 0.16 25);
  --success: oklch(55% 0.14 160);
  --hero-glow-1: oklch(70% 0.08 270 / 0.15);
  --hero-glow-2: oklch(75% 0.06 260 / 0.1);
  --hero-gradient: oklch(80% 0.06 270 / 0.12);
  --screen-gradient-start: oklch(88% 0.02 270);
  --screen-gradient-end: oklch(82% 0.02 260);
  --nav-bg: var(--bg-base);
  --nav-bg-mobile: var(--bg-base);
  --controls-bg: oklch(90% 0.01 260 / 0.75);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-base);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.nav-logo-img {
  width: 2rem;
  height: 2rem;
  object-fit: contain;
}

.nav-logo-text {
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav-link-muted {
  font-size: 0.88rem;
}

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

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: color 0.2s ease;
  position: relative;
  padding: 0.25rem 0;
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-cta {
  background: var(--accent);
  color: var(--bg-base);
  padding: 0.55rem 1.5rem;
  border-radius: 2rem;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}

.nav-cta:hover {
  background: oklch(78% 0.16 170);
  transform: translateY(-1px);
}

.nav-cta:active {
  transform: translateY(0);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.mobile-menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.3s ease;
  border-radius: 2px;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border-color: var(--text-muted);
}

.theme-toggle:active {
  transform: scale(0.95);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.theme-toggle svg {
  width: 1rem;
  height: 1rem;
}

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

[data-theme="dark"] .icon-moon,
[data-theme="light"] .icon-sun {
  display: none;
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background:
    radial-gradient(ellipse 70% 55% at 15% 35%, var(--hero-glow-1) 0%, transparent 55%),
    radial-gradient(ellipse 50% 45% at 90% 75%, oklch(78% 0.08 80 / 0.08) 0%, transparent 50%),
    var(--bg-base);
  overflow: hidden;
  padding: 6rem 0 4rem;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top left, var(--hero-gradient), transparent 55%);
}

.hero-particles {
  display: none;
}

.hero-video-bg {
  display: none;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 2;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  background: oklch(70% 0.14 170 / 0.1);
  border: 1px solid oklch(70% 0.14 170 / 0.2);
  border-radius: 2rem;
  padding: 0.4rem 1rem;
  width: fit-content;
}

.badge-text {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5.5vw, 4.2rem);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.accent-text {
  color: var(--accent);
}

.hero-description {
  font-size: 1.12rem;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 54ch;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 3rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
  line-height: 1;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-base);
}

.btn-primary:hover {
  background: oklch(78% 0.16 170);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

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

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

.btn-secondary:active {
  transform: translateY(0);
}

.btn-secondary:focus-visible {
  outline: 2px solid var(--text-muted);
  outline-offset: 2px;
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

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

.btn-large {
  padding: 1rem 2.25rem;
  font-size: 1.05rem;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

/* ===== PRODUCT MOCKUP ===== */
.product-mockup {
  width: 100%;
  max-width: 420px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 24px 48px oklch(8% 0.02 260 / 0.35);
}

.product-mockup-lg {
  max-width: 820px;
  margin: 0 auto;
}

.mockup-chrome {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 1rem;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-subtle);
}

.mockup-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--border);
}

.mockup-dot:nth-child(1) { background: oklch(62% 0.16 25 / 0.7); }
.mockup-dot:nth-child(2) { background: oklch(78% 0.12 80 / 0.7); }
.mockup-dot:nth-child(3) { background: oklch(65% 0.14 160 / 0.7); }

.mockup-title {
  margin-left: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
}

.mockup-body {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.mockup-body-split {
  flex-direction: row;
  gap: 0;
  padding: 0;
}

.mockup-video {
  position: relative;
  aspect-ratio: 16/10;
  background: linear-gradient(155deg, var(--screen-gradient-start), var(--screen-gradient-end));
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.mockup-body-split .mockup-video {
  flex: 1.2;
  border-radius: 0;
  min-height: 220px;
}

.mockup-video-lg {
  min-height: 280px;
}

.mockup-play {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  background: oklch(97% 0.005 260 / 0.12);
  border: 1px solid oklch(97% 0.005 260 / 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

.mockup-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: oklch(97% 0.005 260 / 0.1);
}

.mockup-progress-fill {
  display: block;
  height: 100%;
  background: var(--accent);
}

.timestamp-pill {
  position: absolute;
  bottom: 0.75rem;
  right: 0.75rem;
  font-size: 0.7rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  padding: 0.2rem 0.55rem;
  border-radius: 0.35rem;
  background: var(--accent-warm);
  color: oklch(18% 0.02 260);
}

.timestamp-pill-lg {
  position: static;
  display: inline-block;
  margin-top: 1rem;
}

.mockup-qa {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.mockup-body-split .mockup-qa {
  flex: 1;
  padding: 1rem;
  border-left: 1px solid var(--border-subtle);
  justify-content: center;
}

.mockup-question {
  align-self: flex-end;
  max-width: 90%;
  padding: 0.55rem 0.85rem;
  border-radius: 1rem 1rem 0.25rem 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-primary);
}

.mockup-answer {
  padding: 0.75rem;
  border-radius: 0.75rem;
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
}

.mockup-answer-badge,
.mockup-answer-label {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.mockup-answer p {
  font-size: 0.78rem;
  line-height: 1.45;
  color: var(--text-secondary);
  margin: 0;
}

.mockup-input-fake {
  margin-top: 0.5rem;
  padding: 0.55rem 0.75rem;
  border-radius: 0.5rem;
  border: 1px dashed var(--border);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.hero-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  padding: 1.5rem;
  width: 100%;
  max-width: 400px;
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.hero-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-dim);
}

.video-mockup {
  width: 100%;
  aspect-ratio: 16/10;
  background: var(--bg-base);
  border-radius: 0.75rem;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.video-screen {
  width: 100%;
  height: 100%;
  background: linear-gradient(160deg, var(--screen-gradient-start), var(--screen-gradient-end));
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: oklch(100% 0 0 / 0.1);
}

.video-progress::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 60%;
  background: var(--accent);
  border-radius: 0 2px 2px 0;
}

.ai-bubble {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 0.9rem 1rem;
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  max-width: 85%;
  margin-top: 1.5rem;
}

.ai-avatar {
  font-size: 1.1rem;
  width: 1.6rem;
  height: 1.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: 50%;
  flex-shrink: 0;
}

.ai-message {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

/* ===== SECTIONS ===== */
section {
  padding: 6rem 0;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

section.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.5vw, 2.75rem);
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
  letter-spacing: -0.025em;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 55ch;
  margin: 0 auto;
  line-height: 1.6;
}

/* ===== HOW IT WORKS ===== */
.how-it-works {
  background: var(--bg-base);
}

.steps-container {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 1.5rem;
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 280px;
  flex: 1;
}

.step-number {
  width: 2.75rem;
  height: 2.75rem;
  background: var(--accent);
  color: var(--bg-base);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.step-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.step-content p {
  color: var(--text-secondary);
  line-height: 1.55;
  font-size: 0.9rem;
}

.step-visual {
  margin-top: 1.25rem;
}

.step-image-placeholder {
  width: 4.5rem;
  height: 4.5rem;
  background: var(--bg-surface);
  border: 1px dashed var(--border);
  border-radius: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

.step-connector {
  width: 3rem;
  height: 1px;
  background: var(--border);
  margin-top: 1.35rem;
  position: relative;
  flex-shrink: 0;
}

.step-connector::after {
  content: '';
  position: absolute;
  right: -4px;
  top: -3px;
  width: 0;
  height: 0;
  border-top: 3.5px solid transparent;
  border-bottom: 3.5px solid transparent;
  border-left: 5px solid var(--border);
}

/* ===== AR REVOLUTION ===== */
.ar-revolution {
  background: var(--bg-surface);
}

.ar-comparison {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 2.5rem;
  align-items: stretch;
  margin-bottom: 4rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.ar-traditional,
.ar-augmented {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  padding: 2rem;
  transition: border-color 0.3s ease;
}

.ar-traditional:hover,
.ar-augmented:hover {
  border-color: var(--border);
}

.ar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.ar-header h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.ar-icon-traditional,
.ar-icon-augmented {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.625rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  background: var(--bg-raised);
  border: 1px solid var(--border-subtle);
}

.ar-features {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.ar-feature {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.5rem;
  border-radius: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.feature-status {
  font-size: 0.9rem;
  width: 1.5rem;
  height: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-weight: 700;
  flex-shrink: 0;
}

.feature-status.highlight {
  background: oklch(65% 0.14 160 / 0.15);
  color: var(--success);
}

.ar-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.arrow-line {
  width: 1px;
  height: 60px;
  background: var(--border);
  position: relative;
}

.arrow-line::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: -3.5px;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 6px solid var(--border);
}

.arrow-head {
  font-size: 1.25rem;
}

.ar-impact {
  text-align: center;
}

.ar-demo-image {
  display: inline-block;
  position: relative;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  padding: 1.5rem;
}

.ar-demo-content {
  width: 360px;
  height: 220px;
  position: relative;
}

.ar-frame {
  width: 100%;
  height: 100%;
  background: linear-gradient(160deg, var(--screen-gradient-start), var(--screen-gradient-end));
  border-radius: 0.875rem;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.ar-screen {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ar-elements {
  position: absolute;
  inset: 0;
}

.ar-info-bubble {
  position: absolute;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  padding: 0.75rem;
  border-radius: 0.75rem;
  max-width: 160px;
  text-align: left;
}

.bubble-1 { top: 15%; left: 8%; }
.bubble-2 { bottom: 20%; right: 10%; }

.bubble-header {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.bubble-content {
  font-size: 0.7rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.scan-overlay {
  display: none;
}

/* ===== WHAT IS ===== */
.what-is {
  background: var(--bg-base);
}

/* ===== FEATURE STRIP ===== */
.feature-strip {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 1rem;
  overflow: hidden;
}

.feature-strip-item {
  display: flex;
  gap: 1rem;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.feature-strip-item:nth-child(odd) {
  border-right: 1px solid var(--border-subtle);
}

.feature-strip-item:nth-last-child(-n+2) {
  border-bottom: none;
}

.feature-strip-icon {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
  background: oklch(70% 0.14 170 / 0.1);
  color: var(--accent);
}

.feature-strip-item h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--text-primary);
}

.feature-strip-item p {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

/* ===== COMPARISON ===== */
.comparison-section {
  background: var(--bg-surface);
}

.comparison-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}

.comparison-panel {
  padding: 2rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
}

.comparison-panel-muted {
  background: var(--bg-base);
  opacity: 0.85;
}

.comparison-panel-accent {
  background: var(--bg-elevated);
  border-color: var(--accent-dim);
}

.comparison-panel h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.comparison-panel ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.comparison-panel li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

.comparison-panel-accent li {
  color: var(--text-primary);
}

.comparison-panel li svg {
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.comparison-panel-muted li svg {
  color: var(--text-muted);
}

.comparison-panel-accent li svg {
  color: var(--success);
}

/* ===== STEPS TIMELINE ===== */
.steps-timeline {
  list-style: none;
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.step-timeline-item {
  display: flex;
  gap: 1.25rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.step-timeline-item:last-child {
  border-bottom: none;
}

.step-timeline-num {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg-base);
  font-weight: 700;
  font-size: 1rem;
}

.step-timeline-item h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--text-primary);
}

.step-timeline-item p {
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

/* ===== BENEFITS SPLIT ===== */
.benefits-split {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.benefit-block {
  padding: 1.75rem;
  border-radius: 0.875rem;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
}

.benefit-block-accent {
  background: oklch(70% 0.14 170 / 0.08);
  border-color: var(--accent-dim);
}

.benefit-block h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.benefit-block p {
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

/* ===== USE CASES LAYOUT ===== */
.use-cases-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 1.5rem;
  align-items: stretch;
}

.use-case-featured {
  padding: 2.5rem 2rem;
  border-radius: 1rem;
  border: 1px solid var(--accent-dim);
  background: linear-gradient(145deg, oklch(70% 0.14 170 / 0.12), var(--bg-surface));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 280px;
}

.use-case-featured h3,
.use-case-row h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.use-case-featured p,
.use-case-row p {
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

.use-case-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: auto;
  padding-bottom: 1rem;
}

.use-cases-secondary {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.use-case-row {
  display: flex;
  gap: 1rem;
  padding: 1.25rem;
  border-radius: 0.875rem;
  border: 1px solid var(--border);
  background: var(--bg-surface);
}

.use-case-row .use-case-tag {
  margin-bottom: 0;
  padding-bottom: 0;
  min-width: 4.5rem;
}

.demo-stage {
  display: flex;
  justify-content: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.footer-brand h3 {
  font-family: var(--font-display);
  margin: 0;
}

.footer-powered {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.what-is-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 0.875rem;
  transition: border-color 0.25s ease;
}

.feature-item:hover {
  border-color: var(--accent-dim);
}

.feature-icon {
  font-size: 1.4rem;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 0.625rem;
  flex-shrink: 0;
}

.feature-text h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--text-primary);
}

.feature-text p {
  color: var(--text-secondary);
  line-height: 1.55;
  font-size: 0.9rem;
}

.what-is-visual video {
  width: 100%;
  height: auto;
  max-height: 380px;
  object-fit: cover;
  border-radius: 0.875rem;
  border: 1px solid var(--border);
}

/* ===== BENEFITS ===== */
.benefits {
  background: var(--bg-surface);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.benefit-card {
  background: var(--bg-elevated);
  padding: 2rem 1.5rem;
  border-radius: 1rem;
  text-align: left;
  border: 1px solid var(--border);
  transition: border-color 0.3s ease, transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.benefit-card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-4px);
}

.benefit-icon {
  width: 2.75rem;
  height: 2.75rem;
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: 0.625rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--accent);
}

.benefit-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.benefit-card p {
  color: var(--text-secondary);
  line-height: 1.55;
  font-size: 0.9rem;
}

/* ===== USE CASES ===== */
.use-cases {
  background: var(--bg-base);
}

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.use-case-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  overflow: hidden;
  transition: border-color 0.3s ease, transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.use-case-card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-4px);
}

.use-case-image-main {
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}

.use-case-image-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.use-case-card:hover .use-case-image-main img {
  transform: scale(1.04);
}

.use-case-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 1.25rem 1.25rem 0.5rem;
  color: var(--text-primary);
}

.use-case-card p {
  color: var(--text-secondary);
  line-height: 1.55;
  font-size: 0.9rem;
  margin: 0 1.25rem 1.25rem;
}

/* ===== DEMO ===== */
.demo {
  background: var(--bg-surface);
}

.demo-container {
  display: flex;
  justify-content: center;
}

.demo-video-placeholder {
  width: 100%;
  max-width: 640px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 1rem;
  overflow: hidden;
}

.video-frame {
  aspect-ratio: 16/9;
  background: linear-gradient(160deg, var(--screen-gradient-start), var(--screen-gradient-end));
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border);
}

.video-controls {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--controls-bg);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.play-button {
  color: var(--text-primary);
  font-size: 1.25rem;
  cursor: pointer;
  line-height: 1;
}

.progress-bar {
  flex: 1;
  height: 3px;
  background: oklch(100% 0 0 / 0.15);
  border-radius: 2px;
  position: relative;
}

.progress-fill {
  height: 100%;
  width: 45%;
  background: var(--accent);
  border-radius: 2px;
}

.time {
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
}

.demo-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.demo-question {
  align-self: flex-start;
}

.question-bubble {
  background: var(--bg-base);
  border: 1px solid var(--border);
  padding: 0.6rem 1rem;
  border-radius: 1rem;
  font-size: 0.85rem;
  color: var(--text-primary);
}

.demo-answer {
  align-self: flex-end;
}

.ai-response-bubble {
  background: var(--bg-base);
  border: 1px solid var(--border);
  padding: 0.9rem 1rem;
  border-radius: 1rem;
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  max-width: 280px;
}

.ai-avatar-small {
  width: 1.5rem;
  height: 1.5rem;
  background: var(--accent-dim);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
  color: var(--text-primary);
}

.response-text {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

/* ===== PRICING ===== */
.pricing {
  background: var(--bg-base);
}

.pricing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  margin-bottom: 3.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 3rem;
  padding: 0.4rem;
  position: relative;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.toggle-btn {
  background: none;
  border: none;
  padding: 0.65rem 1.5rem;
  border-radius: 2rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color 0.25s ease;
  z-index: 2;
  position: relative;
  font-size: 0.9rem;
}

.toggle-btn.active {
  color: var(--bg-base);
}

.toggle-slider {
  position: absolute;
  top: 0.4rem;
  left: 0.4rem;
  width: calc(50% - 0.4rem);
  height: calc(100% - 0.8rem);
  background: var(--accent);
  border-radius: 2rem;
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.toggle-btn[data-period="yearly"].active ~ .toggle-slider,
.pricing-toggle:has(.toggle-btn[data-period="yearly"].active) .toggle-slider {
  transform: translateX(calc(100% + 0.4rem));
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 4rem;
}

.pricing-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  padding: 2rem;
  transition: border-color 0.3s ease, transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  position: relative;
  overflow: hidden;
}

.pricing-card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-6px);
}

.pricing-card.featured {
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 1px var(--accent-dim), 0 20px 50px oklch(10% 0.01 260 / 0.35);
}

.pricing-card.featured:hover {
  border-color: var(--accent);
}

.plan-badge {
  position: absolute;
  top: -0.6rem;
  right: 1.25rem;
  background: var(--accent-warm);
  color: var(--bg-base);
  padding: 0.35rem 1rem;
  border-radius: 2rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.plan-badge.featured {
  background: var(--accent);
}

.plan-badge.enterprise {
  background: var(--accent-dim);
}

.pricing-header {
  text-align: center;
  margin-bottom: 2rem;
}

.plan-name {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.plan-description {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
}

.plan-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.35rem;
  margin-bottom: 0.5rem;
}

.price-amount {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  letter-spacing: -0.04em;
}

.price-period {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 1rem;
}

.price-savings {
  background: oklch(65% 0.1 160 / 0.2);
  color: var(--success);
  padding: 0.2rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.pricing-features {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 2rem;
}

.feature {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.5rem;
  border-radius: 0.5rem;
  transition: background 0.2s ease;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.feature:hover {
  background: oklch(70% 0.14 170 / 0.05);
}

.feature-icon-container {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 0.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: oklch(65% 0.1 160 / 0.12);
  color: var(--success);
  flex-shrink: 0;
}

.feature-icon-container.disabled {
  background: oklch(55% 0.01 260 / 0.15);
  color: var(--text-muted);
}

.feature.disabled {
  opacity: 0.5;
}

.pricing-footer {
  text-align: center;
}

.pricing-btn {
  width: 100%;
  justify-content: center;
  padding: 0.9rem;
  font-size: 0.95rem;
  border-radius: 0.75rem;
}

.pricing-btn.featured {
  background: var(--accent);
  color: var(--bg-base);
}

.pricing-btn.enterprise {
  background: var(--bg-raised);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.pricing-btn.featured:hover {
  background: oklch(78% 0.16 170);
}

.pricing-btn.enterprise:hover {
  border-color: var(--text-muted);
}

.pricing-faq {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  padding: 2.5rem;
  margin-top: 3rem;
}

.pricing-faq h3 {
  text-align: center;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 2rem;
  color: var(--text-primary);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.faq-item {
  padding: 1.25rem;
  border-radius: 0.875rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
}

.faq-item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.faq-item p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.55;
}

/* ===== CTA ===== */
.cta {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.cta-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.cta-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.5vw, 2.75rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.025em;
}

.cta-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 55ch;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--bg-base);
  color: var(--text-secondary);
  padding: 3rem 0 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-section h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.footer-section h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-section p {
  color: var(--text-muted);
  line-height: 1.6;
  font-size: 0.9rem;
  max-width: 32ch;
}

.footer-section a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .use-cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--nav-bg-mobile);
    flex-direction: column;
    padding: 1.25rem;
    gap: 1rem;
    border-bottom: 1px solid var(--border);
  }

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

  .mobile-menu-toggle {
    display: flex;
  }

  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
    padding-top: 4rem;
    padding-bottom: 4rem;
  }

  .hero-title {
    font-size: clamp(2rem, 8vw, 3rem);
  }

  .hero-description {
    margin: 0 auto;
  }

  .hero-ar-comparison {
    margin: 0 auto;
  }

  .feature-strip {
    grid-template-columns: 1fr;
  }

  .feature-strip-item:nth-child(odd) {
    border-right: none;
  }

  .feature-strip-item:nth-last-child(-n+2) {
    border-bottom: 1px solid var(--border-subtle);
  }

  .feature-strip-item:last-child {
    border-bottom: none;
  }

  .comparison-grid {
    grid-template-columns: 1fr;
  }

  .benefits-split {
    grid-template-columns: 1fr;
  }

  .use-cases-layout {
    grid-template-columns: 1fr;
  }

  .mockup-body-split {
    flex-direction: column;
  }

  .mockup-body-split .mockup-qa {
    border-left: none;
    border-top: 1px solid var(--border-subtle);
  }

  .section-title {
    font-size: clamp(1.6rem, 6vw, 2.2rem);
  }

  .what-is-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .steps-container {
    flex-direction: column;
    gap: 2rem;
  }

  .step-connector {
    width: 1px;
    height: 2rem;
    margin-top: 0;
  }

  .step-connector::after {
    right: -3.5px;
    top: auto;
    bottom: -4px;
    border-top: 5px solid var(--border);
    border-bottom: none;
    border-left: 3.5px solid transparent;
    border-right: 3.5px solid transparent;
  }

  .ar-comparison {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .ar-arrow {
    order: -1;
    transform: rotate(90deg);
    flex-direction: row;
  }

  .arrow-line {
    width: 40px;
    height: 1px;
  }

  .arrow-line::after {
    bottom: auto;
    left: auto;
    right: 0;
    top: -3.5px;
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
    border-left: 6px solid var(--border);
    border-right: none;
  }

  .ar-demo-content {
    width: 100%;
    max-width: 320px;
    height: 200px;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
    width: 100%;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .btn-large {
    padding: 1rem 2rem;
  }

  .benefits-grid {
    grid-template-columns: 1fr;
  }

  .use-cases-grid {
    grid-template-columns: 1fr;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
  }

  .pricing-card.featured {
    transform: none;
  }

  .faq-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .footer-section p {
    margin: 0 auto;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  .hero-container {
    padding: 0 1rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .ar-demo-image {
    padding: 1rem;
  }

  .pricing-faq {
    padding: 1.75rem 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  section {
    transition: none;
    opacity: 1;
    transform: none;
  }
}