/* AI Trader — Sales site (matches app theme) */
:root {
  --bg-0: #050a15;
  --bg-1: #0a1020;
  --bg-2: #0f172a;
  --border: rgba(99, 102, 241, 0.12);
  --accent: #6366f1;
  --accent-hover: #818cf8;
  --gradient: linear-gradient(135deg, #6366f1, #8b5cf6, #a78bfa);
  --text-1: #f1f5f9;
  --text-2: #94a3b8;
  --text-3: #64748b;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
  font-family: var(--font);
  background: var(--bg-0);
  color: var(--text-1);
  min-height: 100vh;
  line-height: 1.6;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(5, 10, 21, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-1);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
}

.site-logo img { border-radius: 8px; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-nav a {
  color: var(--text-2);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
}

.site-nav a:hover { color: var(--text-1); }

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
  font-family: var(--font);
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(99, 102, 241, 0.45);
}

.btn-ghost {
  background: transparent;
  color: var(--text-2);
  border: 1px solid var(--border);
}

.btn-ghost:hover { color: var(--accent); border-color: var(--accent); }

.btn-header { padding: 8px 18px; font-size: 0.9rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-xl { padding: 18px 36px; font-size: 1.1rem; }
.btn-block { width: 100%; text-align: center; }

/* Hero */
.hero {
  padding: 140px 24px 100px;
  text-align: center;
}

.hero-inner { max-width: 720px; margin: 0 auto; }

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

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

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-2);
  margin-bottom: 32px;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-bottom: 24px; }

.hero-badge {
  font-size: 0.85rem;
  color: var(--text-3);
}

/* Section */
.section { padding: 80px 24px; }

.container { max-width: 900px; margin: 0 auto; }

.section-title {
  font-size: 1.9rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 48px;
}

/* Features */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.feature-card {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  transition: border-color 0.2s;
}

.feature-card:hover { border-color: rgba(99, 102, 241, 0.35); }

.feature-icon { font-size: 2rem; margin-bottom: 12px; }

.feature-card h3 { font-size: 1.1rem; margin-bottom: 8px; }

.feature-card p { font-size: 0.9rem; color: var(--text-2); }

/* Pricing */
.pricing-card {
  max-width: 420px;
  margin: 0 auto;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px;
}

.pricing-header { text-align: center; margin-bottom: 24px; }

.pricing-header h3 { font-size: 1.5rem; margin-bottom: 4px; }

.pricing-header p { color: var(--text-2); font-size: 0.9rem; }

.pricing-price { text-align: center; margin-bottom: 28px; }

.price-amount { font-size: 3rem; font-weight: 800; }

.price-note { display: block; font-size: 0.9rem; color: var(--text-3); }

.pricing-features {
  list-style: none;
  margin-bottom: 28px;
}

.pricing-features li {
  padding: 8px 0;
  padding-left: 24px;
  position: relative;
  font-size: 0.95rem;
  color: var(--text-2);
}

.pricing-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #10b981;
  font-weight: 700;
}

/* Buy section */
.buy-box {
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
  padding: 48px 32px;
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid var(--border);
  border-radius: 20px;
}

.buy-intro { color: var(--text-2); margin-bottom: 24px; }

.buy-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-bottom: 16px;
}

.buy-box .btn-xl { margin-bottom: 0; }

.btn-crypto {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}

.btn-crypto:hover {
  background: rgba(99, 102, 241, 0.15);
  color: var(--accent-hover);
  border-color: var(--accent-hover);
}

.buy-note { font-size: 0.8rem; color: var(--text-3); }
.buy-note code { background: var(--bg-2); padding: 2px 6px; border-radius: 4px; font-size: 0.85em; }

/* FAQ */
.faq-list { max-width: 600px; margin: 0 auto; }

.faq-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}

.faq-item h4 { font-size: 1rem; margin-bottom: 8px; }

.faq-item p { font-size: 0.9rem; color: var(--text-2); }

/* Footer */
.site-footer {
  padding: 32px 24px;
  text-align: center;
  color: var(--text-3);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}

@media (max-width: 640px) {
  .site-nav { gap: 14px; }
  .site-nav a:not(.btn) { display: none; }
  .hero { padding-top: 120px; }
}