/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #0B1220;
  --bg-2: #0F1A2E;
  --fg: #E8EEF5;
  --fg-muted: #7A8FA8;
  --accent: #00E5C3;
  --accent-dim: rgba(0, 229, 195, 0.08);
  --danger: #E05C4B;
  --border: rgba(0, 229, 195, 0.15);
  --font-display: 'Syne', sans-serif;
  --font-mono: 'DM Mono', monospace;
}
html { font-size: 16px; scroll-behavior: smooth; }
body { background: var(--bg); color: var(--fg); font-family: var(--font-display); line-height: 1.6; overflow-x: hidden; }

/* ===== NAV ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 0 2rem; height: 64px;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  background: rgba(11, 18, 32, 0.8);
}
.nav-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; height: 100%;
}
.nav-logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.05rem; letter-spacing: 0.02em; }
.nav-tagline { font-family: var(--font-mono); font-size: 0.75rem; color: var(--fg-muted); letter-spacing: 0.08em; text-transform: uppercase; }

/* ===== HERO ===== */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  padding: 100px 2rem 80px;
  background: radial-gradient(ellipse 80% 60% at 60% 40%, rgba(0, 229, 195, 0.06) 0%, transparent 70%), var(--bg);
}
.hero-grid {
  max-width: 1100px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center;
}
.hero-badge {
  display: inline-block;
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--accent); background: var(--accent-dim); border: 1px solid var(--border);
  padding: 4px 12px; border-radius: 2px; margin-bottom: 1.5rem;
}
.hero-headline {
  font-size: clamp(3rem, 6vw, 5rem); font-weight: 800; line-height: 1.05;
  letter-spacing: -0.02em; margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #E8EEF5 0%, #A0B0C4 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-lede { font-size: 1.1rem; color: var(--fg-muted); max-width: 480px; line-height: 1.7; font-weight: 400; }
.hero-visual { display: flex; justify-content: center; align-items: center; }
.node-diagram { position: relative; }
.node-hub { width: 220px; height: 220px; animation: pulse 4s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.75; } }
.node-label { text-align: center; margin-top: 1rem; font-family: var(--font-mono); font-size: 0.7rem; color: var(--fg-muted); letter-spacing: 0.08em; text-transform: uppercase; }

/* ===== SECTIONS ===== */
.section-inner { max-width: 1100px; margin: 0 auto; padding: 0 2rem; }
.section-label { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-bottom: 1rem; }
.section-title { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; margin-bottom: 1.5rem; max-width: 640px; }
.section-body { font-size: 1.05rem; color: var(--fg-muted); line-height: 1.8; max-width: 600px; margin-bottom: 3rem; }

/* ===== WHY ===== */
.why { padding: 100px 0; }
.pain-points { display: flex; flex-direction: column; gap: 2rem; }
.pain { display: grid; grid-template-columns: 40px 1fr; gap: 1.5rem; align-items: start; padding: 1.5rem; border: 1px solid var(--border); border-radius: 4px; background: var(--bg-2); }
.pain-icon { margin-top: 2px; }
.pain-title { font-size: 1rem; font-weight: 600; margin-bottom: 0.5rem; }
.pain-desc { font-size: 0.9rem; color: var(--fg-muted); line-height: 1.7; }

/* ===== HOW ===== */
.how { padding: 100px 0; background: var(--bg-2); }
.how-steps { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.step { padding: 2rem; border: 1px solid var(--border); border-radius: 4px; background: var(--bg); }
.step-num { font-family: var(--font-mono); font-size: 0.7rem; color: var(--accent); letter-spacing: 0.1em; margin-bottom: 1rem; }
.step-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.75rem; }
.step-desc { font-size: 0.9rem; color: var(--fg-muted); line-height: 1.7; }

/* ===== STACK ===== */
.stack { padding: 100px 0; }
.capabilities { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.cap { padding: 2rem; border: 1px solid var(--border); border-radius: 4px; background: var(--bg-2); }
.cap-icon { margin-bottom: 1rem; }
.cap-body h4 { font-size: 1rem; font-weight: 700; margin-bottom: 0.75rem; }
.cap-body p { font-size: 0.9rem; color: var(--fg-muted); line-height: 1.7; }

/* ===== VISION ===== */
.vision { padding: 100px 0; background: var(--bg-2); }
.vision-content { max-width: 800px; margin: 0 auto; text-align: center; }
.vision-badge { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-bottom: 1.5rem; }
.vision-statement { font-size: clamp(1.3rem, 3vw, 2rem); font-weight: 500; line-height: 1.5; color: var(--fg); font-style: italic; }

/* ===== FOOTER ===== */
.footer { padding: 2rem; border-top: 1px solid var(--border); }
.footer-inner { max-width: 1100px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.footer-brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 0.9rem; }
.footer-tagline { font-family: var(--font-mono); font-size: 0.7rem; color: var(--fg-muted); letter-spacing: 0.08em; text-transform: uppercase; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero-grid { grid-template-columns: 1fr; gap: 3rem; }
  .hero-visual { order: -1; }
  .node-hub { width: 160px; height: 160px; }
  .how-steps, .capabilities { grid-template-columns: 1fr; }
  .section-title { max-width: 100%; }
  .footer-inner { flex-direction: column; gap: 0.75rem; text-align: center; }
}