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

:root {
  --bg:    #0a0a0a;
  --blue:  #6495ed;
  --blue2: #4169e1;
  --white: #ffffff;
  --muted: rgba(255,255,255,0.5);
  --border: rgba(255,255,255,0.08);
  --card-bg: rgba(255,255,255,0.03);
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--white);
  min-height: 100vh;
}
.nav-dropdown-icon {
  font-size: 16px; width: 20px; text-align: center;
}

/* ── HERO ────────────────────────────────────── */
.hero {
  padding: 140px 24px 60px;
  text-align: center;
  position: relative; overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 70% 50% at 50% 0%, rgba(100,149,237,0.1) 0%, transparent 70%);
  pointer-events: none;
}
.section-label {
  font-family: 'Space Mono', monospace;
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--blue); margin-bottom: 20px;
}
.hero h1 {
  font-family: 'Space Mono', monospace;
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 700; line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.hero-sub {
  font-size: 17px; font-weight: 300; line-height: 1.7;
  color: var(--muted); max-width: 650px;
  margin: 0 auto;
}

/* ── FEATURE BLOCKS ──────────────────────────── */
.content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 60px 24px 80px;
}

.feature-block {
  display: flex;
  align-items: center;
  gap: 60px;
  margin-bottom: 80px;
}
.feature-block.reverse {
  flex-direction: row-reverse;
}
.feature-text {
  flex: 1;
}
.feature-text h2 {
  font-family: 'Space Mono', monospace;
  font-size: 24px; font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.3;
}
.feature-text p {
  font-size: 16px; line-height: 1.7;
  color: var(--muted);
}
.feature-img {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.feature-img img {
  width: 100%;
  max-width: 500px;
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}
.feature-img img:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

/* Lightbox modal */
.lightbox {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(8px);
  z-index: 10000;
  align-items: center; justify-content: center;
  padding: 24px;
  cursor: zoom-out;
}
.lightbox.active { display: flex; }
.lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: 12px;
  box-shadow: 0 8px 48px rgba(0,0,0,0.5);
}
.lightbox-close {
  position: absolute; top: 20px; right: 24px;
  background: none; border: none;
  color: rgba(255,255,255,0.7); font-size: 32px;
  cursor: pointer; line-height: 1;
  transition: color 0.15s;
}
.lightbox-close:hover { color: #fff; }
.feature-placeholder {
  width: 100%; max-width: 500px;
  aspect-ratio: 16/10;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 64px;
}

/* ── CTA ─────────────────────────────────────── */
.cta-section {
  text-align: center;
  padding: 80px 24px;
  border-top: 1px solid var(--border);
}
.cta-section h2 {
  font-family: 'Space Mono', monospace;
  font-size: 28px; font-weight: 700;
  margin-bottom: 12px;
}
.cta-section p {
  font-size: 16px; color: var(--muted);
  margin-bottom: 32px;
}
.cta-btn {
  display: inline-block;
  padding: 14px 36px;
  background: var(--blue);
  color: #000; font-weight: 700; font-size: 15px;
  border-radius: 8px; text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s;
}
.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(100,149,237,0.4);
}

/* ── FOOTER ──────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  display: flex; flex-direction: column;
  align-items: center; gap: 20px;
}
.footer-links {
  display: flex; gap: 24px;
  flex-wrap: wrap; justify-content: center;
}
.footer-links a {
  font-size: 13px; color: rgba(255,255,255,0.5);
  text-decoration: none; transition: color 0.15s;
}
.footer-links a:hover { color: #fff; }
.footer-copy {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

/* ── RESPONSIVE ──────────────────────────────── */
@media (max-width: 768px) {
  .hero { padding: 100px 20px 40px; }
  .feature-block, .feature-block.reverse {
    flex-direction: column;
    gap: 32px;
  }
  .feature-text h2 { font-size: 20px; }
}