/* ================================
   DESIGN SYSTEM — 測速照相機 OUT!
   ================================ */

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

:root {
  /* Colors */
  --bg-primary: #0a0a1a;
  --bg-secondary: #0f0f23;
  --bg-tertiary: #161630;
  --bg-card: rgba(22, 22, 48, 0.7);
  --bg-glass: rgba(22, 22, 48, 0.5);

  --text-primary: #f0f0f5;
  --text-secondary: #a0a0b8;
  --text-muted: #6a6a82;

  --accent: #f59e0b;
  --accent-light: #fbbf24;
  --accent-dark: #d97706;
  --accent-glow: rgba(245, 158, 11, 0.25);

  --success: #34d399;
  --danger: #f87171;
  --info: #60a5fa;

  --border: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(245, 158, 11, 0.3);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Typography */
  --font-sans: 'Inter', 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', monospace;

  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.25rem;
  --fs-2xl: 1.5rem;
  --fs-3xl: 1.875rem;
  --fs-4xl: 2.25rem;
  --fs-5xl: 3rem;
  --fs-6xl: 3.75rem;
  --fs-hero: clamp(2.5rem, 6vw, 5rem);

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-base: 300ms;
  --duration-slow: 500ms;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px var(--accent-glow);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: var(--fs-base);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: var(--accent-light);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
  color: var(--accent);
}

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

code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  padding: 0.15em 0.4em;
  background: rgba(245, 158, 11, 0.12);
  color: var(--accent-light);
  border-radius: var(--radius-sm);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ---------- NAVBAR ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-md) 0;
  transition: all var(--duration-base) var(--ease-out);
}

.navbar.scrolled {
  background: rgba(10, 10, 26, 0.85);
  backdrop-filter: blur(20px) saturate(1.5);
  -webkit-backdrop-filter: blur(20px) saturate(1.5);
  border-bottom: 1px solid var(--border);
  padding: var(--space-sm) 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-primary);
  font-weight: 800;
  font-size: var(--fs-lg);
  transition: transform var(--duration-fast) var(--ease-spring);
}

.nav-logo:hover {
  color: var(--text-primary);
  transform: scale(1.03);
}

.logo-icon {
  font-size: 1.5em;
}

.nav-menu {
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: var(--fs-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-full);
  transition: all var(--duration-fast) var(--ease-out);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.nav-link.active {
  color: var(--accent-light);
}

.nav-link--cta {
  background: var(--accent) !important;
  color: var(--bg-primary) !important;
  font-weight: 700;
  padding: var(--space-sm) var(--space-lg) !important;
}

.nav-link--cta:hover {
  background: var(--accent-light) !important;
  color: var(--bg-primary) !important;
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--duration-base) var(--ease-out);
}

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

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

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-4xl) var(--space-lg);
  overflow: hidden;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(245, 158, 11, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 100%, rgba(96, 165, 250, 0.05) 0%, transparent 50%),
    var(--bg-primary);
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--accent-light);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid var(--border-accent);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-xl);
  animation: fadeInDown 0.8s var(--ease-out) both;
}

.hero-title {
  font-size: var(--fs-hero);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--space-xl);
  animation: fadeInUp 0.8s 0.2s var(--ease-out) both;
}

.hero-title-line {
  display: block;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-title-highlight {
  display: block;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 50%, #fde68a 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 30px var(--accent-glow));
}

.hero-subtitle {
  font-size: var(--fs-lg);
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
  animation: fadeInUp 0.8s 0.4s var(--ease-out) both;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-3xl);
  animation: fadeInUp 0.8s 0.6s var(--ease-out) both;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: var(--fs-base);
  padding: 0.875rem 2rem;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--duration-base) var(--ease-out);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: var(--bg-primary);
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
}

.btn-primary:hover {
  color: var(--bg-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(245, 158, 11, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border);
}

.btn-outline:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.btn-block {
  width: 100%;
}

.btn-pulse {
  animation: pulse-glow 2.5s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3); }
  50% { box-shadow: 0 4px 32px rgba(245, 158, 11, 0.5), 0 0 60px rgba(245, 158, 11, 0.15); }
}

/* Hero Stats */
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xl);
  animation: fadeInUp 0.8s 0.8s var(--ease-out) both;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: var(--fs-4xl);
  font-weight: 900;
  color: var(--accent-light);
}

.stat-suffix {
  font-size: var(--fs-2xl);
  font-weight: 800;
  color: var(--accent);
}

.stat-label {
  display: block;
  font-size: var(--fs-xs);
  color: var(--text-muted);
  margin-top: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* Hero Scroll */
.hero-scroll-indicator {
  position: absolute;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-muted);
  font-size: var(--fs-xs);
  animation: float 2s ease-in-out infinite;
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
  opacity: 0.6;
}

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

/* ---------- SECTION COMMON ---------- */
.section {
  padding: var(--space-4xl) 0;
  position: relative;
}

.section:nth-child(even) {
  background: var(--bg-secondary);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-tag {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  background: rgba(245, 158, 11, 0.08);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: var(--fs-4xl);
  font-weight: 900;
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-desc {
  font-size: var(--fs-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- SCROLL REVEAL ---------- */
.reveal-item {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

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

/* ---------- NEWS SECTION ---------- */
.news-timeline {
  max-width: 750px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.news-card {
  display: flex;
  gap: var(--space-xl);
  padding: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--duration-base) var(--ease-out);
}

.news-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.news-card--highlight {
  border-color: var(--border-accent);
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.06) 0%, var(--bg-card) 100%);
}

.news-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 64px;
  padding-top: var(--space-xs);
}

.news-day {
  font-size: var(--fs-3xl);
  font-weight: 900;
  color: var(--accent-light);
  line-height: 1;
}

.news-month {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.news-body {
  flex: 1;
}

.news-badge {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  padding: 2px var(--space-sm);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.news-badge--hot {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-light);
}

.news-title {
  font-size: var(--fs-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.news-text {
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  line-height: 1.8;
}

/* ---------- GUIDE SECTION ---------- */
.guide-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  margin-bottom: var(--space-3xl);
}

.guide-step {
  padding: var(--space-2xl) var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  transition: all var(--duration-base) var(--ease-out);
}

.guide-step:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.step-number {
  font-size: var(--fs-6xl);
  font-weight: 900;
  color: rgba(245, 158, 11, 0.08);
  position: absolute;
  top: var(--space-md);
  right: var(--space-lg);
  line-height: 1;
}

.step-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-lg);
}

.step-title {
  font-size: var(--fs-xl);
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.step-desc {
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.step-tip {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: var(--fs-xs);
  color: var(--accent-light);
  background: rgba(245, 158, 11, 0.06);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--accent);
}

.tip-icon {
  flex-shrink: 0;
}

/* Guide Panel — Android Auto */
.guide-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
}

.panel-title {
  font-size: var(--fs-2xl);
  font-weight: 700;
  margin-bottom: var(--space-xl);
  text-align: center;
}

.panel-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.panel-card {
  padding: var(--space-xl);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--duration-base) var(--ease-out);
  position: relative;
}

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

.panel-card-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

.panel-card h4 {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-sm);
}

.panel-card p {
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  line-height: 1.7;
}

.panel-card--recommended {
  border-color: var(--accent);
  background: rgba(245, 158, 11, 0.04);
}

.panel-card-badge {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  font-size: var(--fs-xs);
  font-weight: 700;
  color: var(--bg-primary);
  background: var(--accent);
  padding: 2px var(--space-md);
  border-radius: var(--radius-full);
}

/* ---------- FEATURES SECTION ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.feature-card {
  padding: var(--space-2xl);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--duration-base) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light), var(--accent));
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
}

.feature-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md), 0 0 40px var(--accent-glow);
}

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

.feature-icon-wrapper {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(245, 158, 11, 0.08);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  transition: all var(--duration-base) var(--ease-out);
}

.feature-card:hover .feature-icon-wrapper {
  background: rgba(245, 158, 11, 0.15);
  transform: scale(1.05);
}

.feature-icon {
  font-size: 1.75rem;
}

.feature-title {
  font-size: var(--fs-xl);
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.feature-desc {
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  line-height: 1.8;
}

/* ---------- PRICING SECTION ---------- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  align-items: start;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  text-align: center;
  transition: all var(--duration-base) var(--ease-out);
  position: relative;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pricing-card--popular {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(245, 158, 11, 0.08) 0%, var(--bg-card) 100%);
  transform: scale(1.05);
}

.pricing-card--popular:hover {
  transform: scale(1.05) translateY(-4px);
}

.pricing-popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--bg-primary);
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
  padding: var(--space-xs) var(--space-xl);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.pricing-header {
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-xl);
}

.pricing-plan {
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.pricing-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
}

.price-currency {
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--text-secondary);
}

.price-amount {
  font-size: var(--fs-5xl);
  font-weight: 900;
  color: var(--text-primary);
  line-height: 1;
}

.price-period {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin-left: var(--space-xs);
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.pricing-features li {
  font-size: var(--fs-sm);
  padding: var(--space-xs) 0;
  padding-left: var(--space-xl);
  position: relative;
}

.pricing-features li::before {
  position: absolute;
  left: 0;
  font-size: var(--fs-sm);
}

.pricing-features li.included {
  color: var(--text-primary);
}

.pricing-features li.included::before {
  content: '✓';
  color: var(--success);
}

.pricing-features li.excluded {
  color: var(--text-muted);
}

.pricing-features li.excluded::before {
  content: '✗';
  color: var(--danger);
  opacity: 0.5;
}

.pricing-note {
  margin-top: var(--space-2xl);
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  padding: var(--space-xl);
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.08) 0%, rgba(245, 158, 11, 0.02) 100%);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
}

.pricing-note-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.pricing-note p {
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  line-height: 1.8;
}

.pricing-note strong {
  color: var(--accent-light);
}

/* ---------- PRIVACY SECTION ---------- */
.privacy-content {
  max-width: 800px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl) var(--space-3xl);
}

.privacy-block {
  margin-bottom: var(--space-2xl);
}

.privacy-block:last-of-type {
  margin-bottom: var(--space-lg);
}

.privacy-block h3 {
  font-size: var(--fs-xl);
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.privacy-block ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.privacy-block li {
  position: relative;
  padding-left: var(--space-xl);
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  line-height: 1.8;
}

.privacy-block li::before {
  content: '•';
  position: absolute;
  left: var(--space-sm);
  color: var(--accent);
}

.privacy-block p {
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  line-height: 1.8;
}

.privacy-email {
  display: inline-block;
  margin-top: var(--space-sm);
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--accent-light);
  padding: var(--space-sm) var(--space-lg);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-out);
}

.privacy-email:hover {
  background: rgba(245, 158, 11, 0.08);
}

.privacy-updated {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
}

.privacy-updated p {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-align: center;
}

/* ---------- DOWNLOAD SECTION ---------- */
.section-download {
  text-align: center;
  background:
    radial-gradient(ellipse at 50% 100%, rgba(245, 158, 11, 0.08) 0%, transparent 60%),
    var(--bg-secondary);
}

.download-actions {
  margin: var(--space-2xl) 0;
}

.google-play-badge {
  display: inline-block;
  transition: transform var(--duration-base) var(--ease-out);
}

.google-play-badge:hover {
  transform: scale(1.05);
}

.google-play-badge img {
  height: 80px;
  width: auto;
}

.download-requirements {
  max-width: 500px;
  margin: var(--space-2xl) auto 0;
}

.download-requirements h4 {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-lg);
}

.requirements-list {
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  flex-wrap: wrap;
}

.requirement {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

.req-icon {
  font-size: 1.25rem;
}

/* ---------- FOOTER ---------- */
.footer {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--border);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
}

.footer-copy {
  font-size: var(--fs-xs);
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-links a {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

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

/* ---------- KEYFRAMES ---------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

  .pricing-card--popular {
    transform: scale(1);
  }

  .pricing-card--popular:hover {
    transform: translateY(-4px);
  }
}

@media (max-width: 768px) {
  :root {
    --fs-hero: 2.5rem;
    --fs-4xl: 1.875rem;
  }

  /* Nav Mobile */
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    flex-direction: column;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border);
    padding: 80px var(--space-xl) var(--space-xl);
    gap: var(--space-xs);
    transition: right var(--duration-base) var(--ease-out);
    z-index: 999;
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-link {
    width: 100%;
    padding: var(--space-md);
    font-size: var(--fs-base);
    border-radius: var(--radius-md);
  }

  .nav-link--cta {
    text-align: center;
    margin-top: var(--space-md);
  }

  /* Section spacing */
  .section {
    padding: var(--space-3xl) 0;
  }

  /* Guide */
  .guide-steps {
    grid-template-columns: 1fr;
  }

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

  /* Features */
  .features-grid {
    grid-template-columns: 1fr;
  }

  /* Pricing */
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  /* Hero stats */
  .hero-stats {
    flex-direction: column;
    gap: var(--space-lg);
  }

  .stat-divider {
    width: 40px;
    height: 1px;
  }

  /* News */
  .news-card {
    flex-direction: column;
    gap: var(--space-md);
  }

  .news-date {
    flex-direction: row;
    gap: var(--space-sm);
    align-items: baseline;
  }

  /* Privacy */
  .privacy-content {
    padding: var(--space-xl);
  }

  /* Footer */
  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  /* Requirements */
  .requirements-list {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: var(--space-3xl) var(--space-md);
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 280px;
  }
}