/* ═══════════════════════════════════════════
   TradeAI.tools — Global Stylesheet
   ═══════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Playfair+Display:wght@700;800;900&display=swap');

:root {
  --bg: #0b0f1a;
  --bg-card: #111827;
  --bg-card-hover: #1a2234;
  --border: #1e293b;
  --border-hover: #334155;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent: #f97316;
  --accent-hover: #fb923c;
  --accent-glow: rgba(249, 115, 22, 0.15);
  --accent-glow-strong: rgba(249, 115, 22, 0.3);
  --white: #ffffff;
  --font-body: 'DM Sans', sans-serif;
  --font-display: 'Playfair Display', serif;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ── UTILITY ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ── TOPNAV ── */
.topnav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 15, 26, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.topnav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.topnav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}
.topnav-logo .bolt {
  font-size: 22px;
  color: var(--accent);
  filter: drop-shadow(0 0 6px var(--accent-glow-strong));
}
.topnav-logo .wordmark {
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.3px;
}
.topnav-logo .wordmark span { color: var(--accent); }

.topnav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.topnav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}
.topnav-links a:hover {
  color: var(--text);
  background: rgba(255,255,255,0.05);
}
.topnav-links a.active {
  color: var(--accent);
}
.topnav-cta {
  background: var(--accent) !important;
  color: var(--bg) !important;
  font-weight: 700 !important;
  padding: 9px 18px !important;
  border-radius: var(--radius-sm) !important;
  transition: background 0.2s, transform 0.15s !important;
}
.topnav-cta:hover {
  background: var(--accent-hover) !important;
  transform: translateY(-1px);
}

/* Mobile nav */
.topnav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 24px;
  cursor: pointer;
  padding: 4px;
}
@media (max-width: 768px) {
  .topnav-links { display: none; }
  .topnav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0; right: 0;
    background: rgba(11, 15, 26, 0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px 20px;
    gap: 4px;
  }
  .topnav-links.open a { padding: 12px 14px; width: 100%; }
  .topnav-toggle { display: block; }
}

/* ── FOOTER ── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  text-align: center;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.footer-brand {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
  margin-bottom: 8px;
}
.footer-brand span { color: var(--accent); }
.footer-tagline {
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 16px;
}
.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--accent); }
.footer-copy {
  font-size: 12px;
  color: var(--text-dim);
}

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-up {
  animation: fadeUp 0.6s ease-out forwards;
  opacity: 0;
}
.fade-up-d1 { animation-delay: 0.1s; }
.fade-up-d2 { animation-delay: 0.2s; }
.fade-up-d3 { animation-delay: 0.3s; }
.fade-up-d4 { animation-delay: 0.4s; }
.fade-up-d5 { animation-delay: 0.5s; }