/* ═══════════ RESET & BASE ═══════════ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { transition: background-color 0.5s, color 0.5s; overflow-x: hidden; }

/* ═══════════ THEME: DARK (default) ═══════════ */
:root {
  --bg: #08080f; --bg2: #0d0d1a;
  --surface: rgba(255,255,255,0.03); --surface-border: rgba(255,255,255,0.08);
  --text: #e0e0e0; --text2: #888; --text3: #555; --text4: #333;
  --accent: #00d4ff; --accent2: #0099ff; --accent-bg: rgba(0,212,255,0.08);
  --danger: #ff4757; --verified: #00d4ff;
  --gradient: linear-gradient(135deg, #00d4ff, #ff00aa);
  --font: 'Fira Code', monospace;
  --hero-p1: #00d4ff; --hero-p2: #ff00aa; --hero-p3: #0099ff;
}

/* ═══════════ THEME: LIGHT ═══════════ */
[data-theme="light"] {
  --bg: #f0f0f2; --bg2: #ffffff;
  --surface: rgba(0,0,0,0.02); --surface-border: rgba(0,0,0,0.08);
  --text: #1a1a2e; --text2: #555; --text3: #888; --text4: #bbb;
  --accent: #2563eb; --accent2: #1d4ed8; --accent-bg: rgba(37,99,235,0.06);
  --danger: #dc2626; --verified: #16a34a;
  --gradient: linear-gradient(135deg, #2563eb, #7c3aed);
  --font: 'Helvetica Neue', 'Segoe UI', sans-serif;
  --hero-p1: #2563eb; --hero-p2: #7c3aed; --hero-p3: #1d4ed8;
}

/* ═══════════ THEME: CYBER ═══════════ */
[data-theme="cyber"] {
  --bg: #0a0012; --bg2: #0f0019;
  --surface: rgba(255,0,170,0.04); --surface-border: rgba(255,0,170,0.15);
  --text: #f0e0ff; --text2: #c080ff; --text3: #8040c0; --text4: #4a2070;
  --accent: #ff00aa; --accent2: #ff6600; --accent-bg: rgba(255,0,170,0.08);
  --danger: #ff003c; --verified: #00ff88;
  --gradient: linear-gradient(135deg, #ff00aa, #ffcc00);
  --font: 'Fira Code', monospace;
  --hero-p1: #ff00aa; --hero-p2: #ffcc00; --hero-p3: #ff6600;
}

/* ═══════════ THEME: CALM ═══════════ */
[data-theme="calm"] {
  --bg: #f5f0eb; --bg2: #faf8f4;
  --surface: rgba(120,100,80,0.04); --surface-border: rgba(120,100,80,0.1);
  --text: #3d3427; --text2: #7a6e5d; --text3: #a89880; --text4: #d0c8b8;
  --accent: #6b8f71; --accent2: #8ab490; --accent-bg: rgba(107,143,113,0.08);
  --danger: #c2645a; --verified: #6b8f71;
  --gradient: linear-gradient(135deg, #6b8f71, #c4956a);
  --font: Georgia, Palatino, serif;
  --hero-p1: #6b8f71; --hero-p2: #c4956a; --hero-p3: #8ab490;
}

/* ═══════════ BODY ═══════════ */
body { background: var(--bg); color: var(--text); font-family: var(--font); line-height: 1.6; }

/* ═══════════ UTILITIES ═══════════ */
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.accent-color { color: var(--accent); }
.danger-color { color: var(--danger); }
.text-color { color: var(--text); }
.text2-color { color: var(--text2); }
.text3-color { color: var(--text3); }
.text4-color { color: var(--text4); }
.bg2 { background: var(--bg2); }
.surface-bg { background: var(--surface); }
.surface-border { border: 1px solid var(--surface-border); }
.accent-bg { background: var(--accent-bg); }
.accent-border { border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent); }
.danger-bg { background: color-mix(in srgb, var(--danger) 5%, var(--bg)); }
.danger-border { border: 1px solid color-mix(in srgb, var(--danger) 15%, transparent); }

/* ═══════════ NAV ═══════════ */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--surface-border);
}
.site-nav-inner {
  max-width: 72rem; margin: 0 auto; padding: 0 1.5rem;
  height: 3.5rem; display: flex; align-items: center; justify-content: space-between;
}

/* ═══════════ THEME SWITCHER ═══════════ */
.theme-btn {
  width: 1.5rem; height: 1.5rem; border-radius: 0.375rem;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all 0.25s; border: 2px solid;
}
.theme-btn.active { box-shadow: 0 0 10px color-mix(in srgb, var(--accent) 40%, transparent); }
.theme-btn-dot { width: 0.375rem; height: 0.375rem; border-radius: 50%; }
.theme-switcher { display: flex; gap: 0.375rem; }

/* ═══════════ BUTTONS ═══════════ */
.btn-primary {
  display: inline-block; padding: 1rem 2rem; border-radius: 0.75rem;
  font-weight: 700; font-size: 1rem; text-decoration: none; text-align: center;
  background: var(--gradient); color: #000;
}
.btn-outline {
  display: inline-block; padding: 1rem 2rem; border-radius: 0.75rem;
  font-weight: 700; font-size: 1rem; text-decoration: none; text-align: center;
  color: var(--accent); border: 2px solid color-mix(in srgb, var(--accent) 30%, transparent);
}
.btn-sm {
  padding: 0.5rem 1rem; font-size: 0.75rem; border-radius: 0.5rem;
}

/* ═══════════ CARDS ═══════════ */
.card {
  padding: 1.5rem; border-radius: 0.75rem;
  background: var(--surface); border: 1px solid var(--surface-border);
}
.card-accent {
  padding: 1.5rem; border-radius: 0.75rem;
  background: var(--accent-bg);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
}

/* ═══════════ SECTIONS ═══════════ */
.section { padding: 8rem 1.5rem; }
.section-alt { background: var(--bg2); }
.section-inner { max-width: 72rem; margin: 0 auto; }
.section-narrow { max-width: 48rem; margin: 0 auto; }
.section-label {
  font-size: 0.75rem; letter-spacing: 0.3em; text-transform: uppercase;
  margin-bottom: 1rem; color: var(--accent);
}
.section-title { font-size: 2rem; font-weight: 700; color: var(--text); }

/* ═══════════ SCROLL REVEAL ═══════════ */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s, transform 0.7s; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.15s; }
.reveal-delay-2 { transition-delay: 0.3s; }
.reveal-delay-3 { transition-delay: 0.45s; }

/* ═══════════ FAQ ACCORDION ═══════════ */
.faq-item { border-radius: 0.75rem; border: 1px solid var(--surface-border); }
.faq-toggle {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.25rem; cursor: pointer;
}
.faq-toggle span { font-weight: 600; color: var(--text); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-answer.open { max-height: 500px; }
.faq-answer-inner { padding: 0 1.25rem 1.25rem; color: var(--text2); }
.faq-chevron { transition: transform 0.3s; flex-shrink: 0; }
.faq-chevron.open { transform: rotate(180deg); }

/* ═══════════ AUDIENCE TABS ═══════════ */
.audience-tab {
  padding: 0.75rem 1.5rem; font-size: 0.875rem; letter-spacing: 0.05em;
  text-transform: uppercase; font-weight: 600; cursor: pointer;
  border-bottom: 2px solid transparent; transition: all 0.3s;
  background: none; border-top: none; border-left: none; border-right: none;
  color: var(--text3);
}
.audience-tab.active { border-bottom-color: var(--accent); color: var(--accent); }
.audience-content { display: none; }
.audience-content.active { display: block; }

/* ═══════════ FOOTER ═══════════ */
.site-footer {
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--surface-border);
}
.site-footer-inner {
  max-width: 72rem; margin: 0 auto;
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1rem;
}
.footer-links { display: flex; gap: 1.5rem; font-size: 0.75rem; }
.footer-links a { color: var(--text3); text-decoration: none; }
.footer-links a:hover { text-decoration: underline; }
.footer-links .active { color: var(--accent); }

/* ═══════════ HERO CANVAS ═══════════ */
#hero-canvas {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 0;
}

/* ═══════════ LEGAL PAGES ═══════════ */
.legal-content { line-height: 1.8; color: var(--text2); }
.legal-content section { margin-bottom: 2.5rem; }
.legal-content h2 { font-size: 1.25rem; font-weight: 700; color: var(--text); margin-bottom: 1rem; }
.legal-content p { margin-bottom: 0.75rem; }
.legal-content a { color: var(--accent); text-decoration: none; }
.legal-content a:hover { text-decoration: underline; }
.legal-content strong { color: var(--text); }
.legal-content .danger { color: var(--danger); }
.legal-content table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
.legal-content th { text-align: left; padding: 0.75rem 1rem 0.75rem 0; font-weight: 600; color: var(--text); border-bottom: 1px solid var(--surface-border); }
.legal-content td { padding: 0.75rem 1rem 0.75rem 0; border-bottom: 1px solid var(--surface-border); }
.legal-content tr:last-child td { border-bottom: none; }

/* ═══════════ ICONS (inline SVG) ═══════════ */
.icon-x { display: inline-flex; }
.icon-check { display: inline-flex; }

/* ═══════════ COMING SOON BADGE ═══════════ */
.coming-soon {
  display: inline-block; padding: 0.25rem 0.75rem; border-radius: 9999px;
  font-size: 0.625rem; letter-spacing: 0.1em; text-transform: uppercase;
  font-weight: 700; color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
}

/* ═══════════ RESPONSIVE ═══════════ */
@media (max-width: 640px) {
  .section { padding: 4rem 1.5rem; }
  .section-title { font-size: 1.5rem; }
  .hide-mobile { display: none; }
}

/* ═══════════ SCROLLBAR ═══════════ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--text4); border-radius: 3px; }