/* ============================================
   AI LAO BAN - Main Stylesheet
   ============================================ */

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

html { scroll-behavior: smooth; }

body {
  background: #000;
  color: #f5f5f5;
  font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
  cursor: none;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #000; }
::-webkit-scrollbar-thumb { background: #333; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #555; }

::selection { background: rgba(240,192,64,0.3); color: #fff; }

/* ===== Backgrounds ===== */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.bg-glow {
  position: fixed;
  top: -300px;
  left: -300px;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(240,192,64,0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  transition: transform 0.1s ease-out;
}

/* ===== Cursor ===== */
.cursor-ring {
  position: fixed;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(240,192,64,0.4);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.3s, height 0.3s, border-color 0.3s, opacity 0.3s;
}
.cursor-ring.hover {
  width: 60px;
  height: 60px;
  border-color: rgba(240,192,64,0.8);
  background: rgba(240,192,64,0.05);
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s;
  background: transparent;
}
.header.scrolled {
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  padding: 12px 40px;
}

.logo { font-size: 22px; font-weight: 700; color: #f5f5f5; letter-spacing: 2px; }
.logo-accent { color: #f0c040; }

.header-left, .header-right { display: flex; align-items: center; gap: 24px; }
.nav-links { display: flex; gap: 24px; }
.nav-link {
  font-size: 12px;
  color: #888;
  text-decoration: none;
  letter-spacing: 1px;
  transition: color 0.3s;
  font-family: "JetBrains Mono", monospace;
}
.nav-link:hover { color: #f5f5f5; }

/* ===== Hero ===== */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 120px 20px 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid rgba(240,192,64,0.2);
  border-radius: 100px;
  font-size: 11px;
  color: #f0c040;
  letter-spacing: 2px;
  margin-bottom: 40px;
  font-family: "JetBrains Mono", monospace;
}
.badge-dot { width: 6px; height: 6px; background: #f0c040; border-radius: 50%; }

.hero-title {
  font-size: clamp(36px, 7vw, 72px);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -1px;
}
.gradient-text {
  background: linear-gradient(135deg, #f0c040, #f59e0b, #f97316);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 16px;
  color: #666;
  max-width: 500px;
  line-height: 1.8;
  margin-bottom: 40px;
}

.hero-cta { margin-bottom: 60px; }

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 40px;
  background: #f0c040;
  border: none;
  border-radius: 12px;
  color: #0a0a0a;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  letter-spacing: 1px;
}
.cta-btn:hover {
  background: #f59e0b;
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(240,192,64,0.2);
}

.hero-stats {
  display: flex;
  gap: 48px;
}
.stat-item { text-align: center; }
.stat-num {
  font-family: "JetBrains Mono", monospace;
  font-size: 36px;
  font-weight: 700;
  color: #f5f5f5;
  display: inline;
}
.stat-plus, .stat-percent { font-family: "JetBrains Mono", monospace; font-size: 20px; color: #f0c040; }
.stat-label {
  display: block;
  font-size: 12px;
  color: #555;
  margin-top: 8px;
  letter-spacing: 1px;
}

/* ===== Sections ===== */
section { position: relative; z-index: 1; }
.section-tag {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  color: #f0c040;
  letter-spacing: 3px;
  margin-bottom: 16px;
  text-align: center;
}
.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
  line-height: 1.3;
}
.section-desc {
  text-align: center;
  color: #666;
  font-size: 15px;
  max-width: 500px;
  margin: 0 auto 60px;
  line-height: 1.8;
}

/* ===== Modules ===== */
.modules { padding: 100px 20px; max-width: 1100px; margin: 0 auto; }
.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 12px;
}
.module-card {
  background: #111;
  border: 1px solid #222;
  border-radius: 16px;
  padding: 28px;
  transition: all 0.3s;
}
.module-card:hover {
  border-color: #333;
  transform: translateY(-4px);
  background: #1a1a1a;
}
.module-number {
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  color: #f0c040;
  margin-bottom: 12px;
}
.module-card h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.module-card p { font-size: 13px; color: #64748b; line-height: 1.7; }

/* ===== Trust ===== */
.trust { padding: 100px 20px; max-width: 1100px; margin: 0 auto; }
.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
  margin-bottom: 60px;
}
.trust-card {
  background: #111;
  border: 1px solid #222;
  border-radius: 16px;
  padding: 28px;
  text-align: center;
  transition: all 0.3s;
}
.trust-card:hover { border-color: #333; transform: translateY(-2px); }
.trust-icon { font-size: 32px; margin-bottom: 16px; }
.trust-card h3 { font-size: 15px; font-weight: 600; margin-bottom: 8px; }
.trust-card p { font-size: 13px; color: #64748b; line-height: 1.7; }

.trust-metrics {
  display: flex;
  justify-content: center;
  gap: 60px;
  padding: 40px;
  background: #111;
  border: 1px solid #222;
  border-radius: 16px;
}
.tm-item { text-align: center; }
.tm-num {
  font-family: "JetBrains Mono", monospace;
  font-size: 40px;
  font-weight: 700;
  color: #f5f5f5;
  display: inline;
}
.tm-plus, .tm-percent { font-family: "JetBrains Mono", monospace; font-size: 24px; color: #f0c040; }
.tm-label { display: block; font-size: 12px; color: #555; margin-top: 8px; }

/* ===== Story ===== */
.story { padding: 100px 20px; max-width: 1100px; margin: 0 auto; }
.story-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}
.story-card {
  background: #111;
  border: 1px solid #222;
  border-radius: 16px;
  padding: 28px;
  transition: all 0.3s;
}
.story-card:hover { border-color: #333; }
.story-avatar { font-size: 40px; margin-bottom: 16px; }
.story-name { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.story-role { font-size: 11px; color: #f0c040; margin-bottom: 12px; }
.story-text { font-size: 13px; color: #64748b; line-height: 1.8; font-style: italic; }

/* ===== FAQ ===== */
.faq { padding: 100px 20px; max-width: 700px; margin: 0 auto; }
.faq-list { display: flex; flex-direction: column; gap: 8px; }
.faq-item {
  background: #111;
  border: 1px solid #222;
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.3s;
}
.faq-item:hover { border-color: #333; }
.faq-item.open { border-color: #333; }
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  background: none;
  border: none;
  color: #f5f5f5;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: color 0.3s;
}
.faq-question:hover { color: #f0c040; }
.faq-arrow { font-size: 12px; color: #555; transition: transform 0.3s; }
.faq-item.open .faq-arrow { transform: rotate(180deg); color: #f0c040; }
.faq-answer {
  max-height: 0;
  padding: 0 24px;
  font-size: 13px;
  color: #666;
  line-height: 1.8;
  overflow: hidden;
  transition: all 0.3s;
}
.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 24px 20px;
}

/* ===== CTA Section ===== */
.cta-section { padding: 100px 20px; max-width: 700px; margin: 0 auto; }
.cta-card {
  background: linear-gradient(135deg, #1a1a1a, #111);
  border: 1px solid rgba(240,192,64,0.2);
  border-radius: 20px;
  padding: 60px 40px;
  text-align: center;
}
.cta-title { font-size: 28px; font-weight: 700; margin-bottom: 12px; }
.cta-text { font-size: 14px; color: #666; line-height: 1.8; margin-bottom: 32px; max-width: 450px; margin-left: auto; margin-right: auto; }

/* ===== Footer ===== */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid #111;
  padding: 40px;
}
.footer-content {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-desc { font-size: 12px; color: #555; margin-top: 8px; }
.footer-links span { font-size: 12px; color: #444; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .header { padding: 12px 16px; }
  .header.scrolled { padding: 10px 16px; }
  .nav-links { display: none; }
  .hero-title { font-size: 32px; }
  .hero-stats { gap: 24px; flex-wrap: wrap; justify-content: center; }
  .stat-num { font-size: 28px; }
  .trust-metrics { gap: 30px; padding: 24px; flex-wrap: wrap; }
  .tm-num { font-size: 30px; }
  .modules-grid { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: 1fr; }
  .story-grid { grid-template-columns: 1fr; }
  .cta-card { padding: 40px 20px; }
  .footer-content { flex-direction: column; gap: 12px; text-align: center; }
  body { cursor: auto; }
  .cursor-ring { display: none; }
}

@media (max-width: 480px) {
  .hero { padding: 100px 16px 60px; }
  .hero-title { font-size: 28px; }
  .hero-sub { font-size: 14px; }
  .cta-btn { padding: 14px 28px; font-size: 13px; }
}