:root {
  --bg-dark: #0a0b10;
  --bg-card: rgba(22, 24, 38, 0.7);
  --bg-card-hover: rgba(30, 33, 52, 0.85);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(99, 102, 241, 0.4);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-purple: #8b5cf6;
  --accent-emerald: #10b981;
  --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 50%, #06b6d4 100%);
  --gradient-glow: radial-gradient(circle at 50% 0%, rgba(99, 102, 241, 0.25) 0%, rgba(10, 11, 16, 0) 70%);
  --font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --container-max: 1140px;
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

.ambient-glow {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 800px;
  background: var(--gradient-glow);
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Header & Nav */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(10, 11, 16, 0.75);
  border-bottom: 1px solid var(--border-glass);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.25rem;
}

.logo img {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

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

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
}

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

.cta-nav {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-glass);
  padding: 8px 18px;
  border-radius: 999px;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: var(--transition);
}

.cta-nav:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-1px);
}

/* Hero Section */
.hero {
  padding: 100px 0 80px;
  text-align: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  font-size: 0.85rem;
  font-weight: 600;
  color: #60a5fa;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 24px;
  max-width: 850px;
  margin-left: auto;
  margin-right: auto;
}

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 40px;
  font-weight: 400;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.app-store-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #ffffff;
  color: #000000;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.05rem;
  box-shadow: 0 10px 30px rgba(255, 255, 255, 0.15);
  transition: var(--transition);
}

.app-store-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(255, 255, 255, 0.25);
}

.app-store-btn svg {
  width: 24px;
  height: 24px;
}

.compatibility {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Stats Ribbon */
.stats {
  padding: 30px 0 70px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 32px 40px;
  backdrop-filter: blur(10px);
}

.stat-item {
  text-align: center;
}

.stat-value {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Section styling */
.section {
  padding: 90px 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}

.section-tag {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-cyan);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  transition: var(--transition);
  backdrop-filter: blur(12px);
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  font-size: 1.5rem;
}

.card-icon.blue { background: rgba(59, 130, 246, 0.15); color: var(--accent-blue); }
.card-icon.purple { background: rgba(139, 92, 246, 0.15); color: var(--accent-purple); }
.card-icon.cyan { background: rgba(6, 182, 212, 0.15); color: var(--accent-cyan); }
.card-icon.emerald { background: rgba(16, 185, 129, 0.15); color: var(--accent-emerald); }

.card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Feature Spotlight / Xcode Clean Section */
.spotlight {
  background: linear-gradient(180deg, rgba(22, 24, 38, 0.4) 0%, rgba(10, 11, 16, 0.8) 100%);
  border-top: 1px solid var(--border-glass);
  border-bottom: 1px solid var(--border-glass);
}

.spotlight-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.spotlight-content h2 {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.spotlight-content p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 28px;
}

.spotlight-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.spotlight-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-primary);
  font-weight: 500;
}

.check-icon {
  color: var(--accent-emerald);
  font-weight: bold;
}

.spotlight-preview {
  background: #11131e;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  font-family: ui-monospace, Menlo, Monaco, "Cascadia Mono", monospace;
  font-size: 0.88rem;
}

.terminal-header {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.terminal-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: #a5b4fc;
}

.terminal-row {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 8px;
}

.row-val {
  color: #34d399;
  font-weight: 600;
}

/* FAQ */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  max-width: 800px;
  margin: 0 auto;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 24px 28px;
}

.faq-item h4 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.faq-item p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* CTA Banner */
.cta-banner {
  text-align: center;
  padding: 80px 30px;
  background: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.15) 0%, rgba(22, 24, 38, 0.8) 100%);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  margin-bottom: 90px;
}

.cta-banner h2 {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-banner p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 550px;
  margin: 0 auto 32px;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-glass);
  padding: 48px 0;
  color: var(--text-tertiary);
  font-size: 0.9rem;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

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

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

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

/* Responsive */
@media (max-width: 868px) {
  .nav-links {
    display: none;
  }
  .spotlight-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .stats-grid {
    grid-template-columns: 1fr;
    padding: 24px;
    gap: 20px;
  }
}