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

:root {
  --bg: #0F1419;
  --surface: #1A2330;
  --surface2: #222D3F;
  --accent: #00D4AA;
  --accent-dim: rgba(0, 212, 170, 0.15);
  --text: #F5F0E8;
  --text-muted: #8A99B0;
  --text-dim: #566276;
  --border: #2A3A50;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { font-family: 'Syne', sans-serif; line-height: 1.15; }

/* Navbar */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.25rem 2.5rem;
  background: rgba(15, 20, 25, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 1.25rem; color: var(--text); text-decoration: none; letter-spacing: -0.02em; }
.nav-tagline { font-size: 0.8rem; color: var(--text-muted); letter-spacing: 0.05em; text-transform: uppercase; }

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 2.5rem 5rem;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,212,170,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; width: 100%; }
.hero-eyebrow { display: inline-block; font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); font-weight: 500; margin-bottom: 1.25rem; border: 1px solid var(--accent-dim); padding: 0.35rem 0.85rem; border-radius: 2rem; }
.hero-headline { font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 800; color: var(--text); letter-spacing: -0.03em; margin-bottom: 1.5rem; }
.hero-sub { font-size: 1.1rem; color: var(--text-muted); max-width: 450px; line-height: 1.7; }

/* Product Card Stack */
.hero-visual { display: flex; justify-content: center; align-items: center; }
.product-card-stack { position: relative; width: 340px; height: 360px; }
.product-card {
  position: absolute;
  width: 240px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.pc-1 { top: 0; left: 0; transform: rotate(-6deg); z-index: 3; }
.pc-2 { top: 55px; left: 50px; transform: rotate(2deg); z-index: 2; }
.pc-3 { top: 110px; left: 0; transform: rotate(-3deg); z-index: 1; }
.pc-image { height: 200px; background: var(--surface2); position: relative; overflow: hidden; }
.pc-img-1 { background: linear-gradient(135deg, #1a3a4a 0%, #0d2030 100%); }
.pc-img-1::after { content: ''; position: absolute; inset: 0; background: repeating-linear-gradient(45deg, transparent, transparent 20px, rgba(0,212,170,0.05) 20px, rgba(0,212,170,0.05) 40px); }
.pc-img-2 { background: linear-gradient(135deg, #2a1a4a 0%, #150d30 100%); }
.pc-img-2::after { content: ''; position: absolute; inset: 0; background: repeating-linear-gradient(-45deg, transparent, transparent 20px, rgba(200,100,255,0.05) 20px, rgba(200,100,255,0.05) 40px); }
.pc-img-3 { background: linear-gradient(135deg, #1a3a2a 0%, #0d2a1a 100%); }
.pc-img-3::after { content: ''; position: absolute; inset: 0; background: repeating-linear-gradient(0deg, transparent, transparent 20px, rgba(100,255,150,0.05) 20px, rgba(100,255,150,0.05) 40px); }
.pc-label { padding: 0.75rem 1rem; font-size: 0.8rem; font-weight: 500; color: var(--accent); border-top: 1px solid var(--border); }

/* Manifesto */
.manifesto { padding: 7rem 2.5rem; background: var(--surface); }
.manifesto-inner { max-width: 1200px; margin: 0 auto; }
.manifesto-title { font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 700; margin-bottom: 4rem; letter-spacing: -0.02em; }
.manifesto-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px; }
.mg-item {
  padding: 2.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
}
.mg-icon { width: 36px; height: 36px; background: var(--accent-dim); border-radius: 50%; margin-bottom: 1.25rem; display: flex; align-items: center; justify-content: center; }
.mg-icon::after { content: ''; width: 14px; height: 14px; background: var(--accent); border-radius: 50%; }
.mg-item h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.75rem; color: var(--text); }
.mg-item p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.65; }

/* Process */
.process { padding: 7rem 2.5rem; }
.process-inner { max-width: 1200px; margin: 0 auto; }
.section-label { display: inline-block; font-size: 0.7rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); margin-bottom: 1rem; }
.process-title { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 700; margin-bottom: 4rem; letter-spacing: -0.02em; max-width: 500px; }
.process-steps { display: flex; align-items: flex-start; gap: 0; }
.step { flex: 1; }
.step-num { font-family: 'Syne', sans-serif; font-size: 3.5rem; font-weight: 800; color: var(--accent-dim); line-height: 1; margin-bottom: 1.25rem; letter-spacing: -0.04em; }
.step h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.75rem; }
.step p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.65; max-width: 280px; }
.step-connector { flex: 0 0 60px; height: 2px; background: linear-gradient(90deg, var(--accent-dim), var(--border)); margin-top: 1.75rem; }

/* Promise */
.promise { padding: 7rem 2.5rem; background: var(--surface); }
.promise-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr auto; gap: 4rem; align-items: center; }
.promise-title { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700; margin-bottom: 2rem; letter-spacing: -0.02em; }
.promise-list { list-style: none; display: flex; flex-direction: column; gap: 1rem; }
.promise-list li { display: flex; align-items: flex-start; gap: 0.85rem; font-size: 0.95rem; color: var(--text-muted); }
.promise-list li::before { content: ''; flex: 0 0 18px; height: 18px; background: var(--accent); border-radius: 50%; margin-top: 0.15rem; }
.trust-badge { width: 160px; height: 160px; background: var(--bg); border: 2px solid var(--accent); border-radius: 50%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.5rem; text-align: center; }
.tb-icon { font-size: 2.5rem; color: var(--accent); line-height: 1; }
.tb-text { font-size: 0.8rem; font-weight: 600; line-height: 1.4; }

/* Closing */
.closing { padding: 8rem 2.5rem; text-align: center; }
.closing-inner { max-width: 700px; margin: 0 auto; }
.closing-title { font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 800; letter-spacing: -0.03em; margin-bottom: 1.5rem; }
.closing-sub { font-size: 1.05rem; color: var(--text-muted); line-height: 1.7; }

/* Footer */
.footer { border-top: 1px solid var(--border); padding: 2.5rem; }
.footer-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.footer-logo { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 1.1rem; display: block; margin-bottom: 0.25rem; }
.footer-desc { font-size: 0.8rem; color: var(--text-muted); }
.footer-meta { font-size: 0.75rem; color: var(--text-dim); }

/* Responsive */
@media (max-width: 768px) {
  .hero { padding: 7rem 1.5rem 4rem; }
  .hero-content { grid-template-columns: 1fr; gap: 3rem; }
  .hero-visual { order: -1; }
  .product-card-stack { width: 260px; height: 280px; }
  .product-card { width: 180px; }
  .pc-image { height: 150px; }
  .manifesto-grid { grid-template-columns: 1fr; }
  .process-steps { flex-direction: column; gap: 2rem; }
  .step-connector { width: 2px; height: 40px; flex: 0 0 auto; background: linear-gradient(180deg, var(--accent-dim), var(--border)); margin: 0; }
  .promise-inner { grid-template-columns: 1fr; }
  .trust-badge { display: none; }
  .footer-inner { flex-direction: column; gap: 1rem; text-align: center; }
}