/* ============================================
   CoinX Trader — Styles
   Dark crypto-trading aesthetic
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

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

:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #1a2235;
  --bg-card-hover: #1f2a40;
  --accent: #00d4aa;
  --accent-dim: rgba(0, 212, 170, 0.15);
  --accent-blue: #3b82f6;
  --accent-blue-dim: rgba(59, 130, 246, 0.15);
  --text-primary: #e8ecf1;
  --text-secondary: #8b95a5;
  --text-muted: #5a6577;
  --border: #1e293b;
  --border-light: #2a3548;
  --green: #22c55e;
  --red: #ef4444;
  --yellow: #eab308;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --max-width: 1200px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: #33e8be; }

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

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

/* --- Navigation --- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 14, 23, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.nav-logo span { color: var(--accent); }

.nav-links { display: flex; gap: 8px; list-style: none; }

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: var(--accent-dim);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* --- Hero --- */
.hero {
  padding: 100px 0 80px;
  text-align: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(0, 212, 170, 0.08) 0%, transparent 60%);
}

.hero-badge {
  display: inline-block;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero h1 .gradient {
  background: linear-gradient(135deg, var(--accent), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-ctas { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.25s;
}

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

.btn-primary:hover {
  background: #33e8be;
  color: var(--bg-primary);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(0, 212, 170, 0.25);
}

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

.btn-secondary:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  border-color: var(--accent);
}

.btn-sm { padding: 10px 20px; font-size: 0.85rem; }

/* --- Section --- */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-secondary); }

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

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

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all 0.3s;
}

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

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-dim);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-bottom: 16px;
}

.card-link {
  font-size: 0.875rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.card-link::after { content: '\2192'; transition: transform 0.2s; }
.card-link:hover::after { transform: translateX(4px); }

/* --- Comparison Table --- */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

thead { background: var(--bg-card); }

th {
  padding: 16px 20px;
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

td {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  white-space: nowrap;
}

tbody tr { transition: background 0.15s; }
tbody tr:hover { background: var(--bg-card); }

.exchange-name {
  font-weight: 600;
  color: var(--text-primary);
}

.rating {
  color: var(--yellow);
  font-weight: 600;
}

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-green { background: rgba(34, 197, 94, 0.15); color: var(--green); }
.badge-blue { background: var(--accent-blue-dim); color: var(--accent-blue); }
.badge-yellow { background: rgba(234, 179, 8, 0.15); color: var(--yellow); }
.badge-red { background: rgba(239, 68, 68, 0.15); color: var(--red); }

/* --- Feature / Info Cards --- */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

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

.info-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.info-card p { color: var(--text-secondary); font-size: 0.9rem; }

/* --- Stat Bar --- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 24px;
  padding: 40px 0;
}

.stat { text-align: center; }

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* --- Prose Content --- */
.prose { max-width: 780px; margin: 0 auto; }

.prose h1 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.prose h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 48px;
  margin-bottom: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.prose h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 12px;
}

.prose p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 1rem;
}

.prose ul, .prose ol {
  color: var(--text-secondary);
  margin: 0 0 20px 24px;
}

.prose li { margin-bottom: 8px; font-size: 0.95rem; }

.prose strong { color: var(--text-primary); }

.prose .callout {
  background: var(--accent-dim);
  border-left: 3px solid var(--accent);
  padding: 20px 24px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
}

.prose .callout p { color: var(--text-primary); margin: 0; }

.prose .warning {
  background: rgba(234, 179, 8, 0.1);
  border-left-color: var(--yellow);
}

/* --- Product Card (Wallets / Tools) --- */
.product-card {
  display: flex;
  gap: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 24px;
  transition: all 0.3s;
}

.product-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.product-rank {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  min-width: 40px;
}

.product-info { flex: 1; }

.product-info h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.product-meta {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.product-info p { color: var(--text-secondary); font-size: 0.92rem; margin-bottom: 14px; }

.product-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* --- Page Header --- */
.page-header {
  padding: 60px 0 40px;
  text-align: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(0, 212, 170, 0.06) 0%, transparent 50%);
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

/* --- Footer --- */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 60px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p { color: var(--text-secondary); font-size: 0.9rem; margin-top: 12px; }

.footer-col h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-col ul { list-style: none; }

.footer-col li { margin-bottom: 10px; }

.footer-col a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.footer-disclaimer {
  color: var(--text-muted);
  font-size: 0.78rem;
  max-width: 700px;
  line-height: 1.6;
  padding: 20px 0 0;
}

/* --- Form --- */
.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea { resize: vertical; min-height: 140px; }

.contact-form { max-width: 600px; margin: 0 auto; }

/* --- CTA Banner --- */
.cta-banner {
  background: linear-gradient(135deg, rgba(0, 212, 170, 0.1), rgba(59, 130, 246, 0.1));
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 48px;
  text-align: center;
  margin: 48px 0;
}

.cta-banner h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 12px; }
.cta-banner p { color: var(--text-secondary); margin-bottom: 24px; max-width: 480px; margin-left: auto; margin-right: auto; }

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
  }
  .nav-toggle { display: block; }

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

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

  .product-card { flex-direction: column; gap: 12px; }

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

  .footer-bottom { flex-direction: column; text-align: center; }

  .cta-banner { padding: 32px 20px; }

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

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero-ctas { flex-direction: column; align-items: center; }
}