/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0F0F0F;
  --bg-2: #161616;
  --fg: #F2F2F2;
  --fg-2: #999999;
  --accent: #E8FF4E;
  --accent-dim: rgba(232, 255, 78, 0.08);
  --border: rgba(255,255,255,0.06);
  --card-bg: rgba(255,255,255,0.03);
  --radius: 12px;
  --font-display: 'Syne', system-ui, sans-serif;
  --font-body: 'Manrope', system-ui, sans-serif;
}

html { font-size: 16px; scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* === HERO === */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 0 8vw;
  gap: 4rem;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: -20%;
  width: 80%;
  height: 150%;
  background: radial-gradient(ellipse at center, rgba(232,255,78,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner { max-width: 580px; }

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--fg-2);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.dot:nth-child(2) { opacity: 0.5; }
.dot:nth-child(3) { opacity: 0.2; }

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  color: var(--fg);
}

.hero-title .accent {
  color: var(--accent);
  display: inline-block;
}

.hero-lede {
  font-size: 1.1rem;
  color: var(--fg-2);
  max-width: 480px;
  margin-bottom: 3rem;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.stat { display: flex; flex-direction: column; gap: 4px; }

.stat-num {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--fg);
  line-height: 1;
}

.stat-label {
  font-size: 0.7rem;
  color: var(--fg-2);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}

/* === HERO VISUAL === */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.card-stack {
  position: relative;
  width: 280px;
  height: 340px;
}

.card {
  position: absolute;
  width: 260px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  backdrop-filter: blur(12px);
}

.card-1 { top: 0; left: 0; z-index: 3; transform: rotate(-2deg); }
.card-2 { top: 60px; left: 40px; z-index: 2; transform: rotate(1deg); }
.card-3 { top: 120px; left: 20px; z-index: 1; transform: rotate(-0.5deg); }

.card-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--fg-2);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.card-value {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 0.25rem;
}

.card-delta {
  font-size: 0.75rem;
  font-weight: 500;
}
.card-delta.positive { color: var(--accent); }
.card-delta.neutral { color: var(--fg-2); }

/* === MODELS === */
.models {
  padding: 8rem 8vw;
  border-bottom: 1px solid var(--border);
}

.section-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  max-width: 640px;
}

.section-body {
  color: var(--fg-2);
  font-size: 1rem;
  max-width: 520px;
  margin-bottom: 4rem;
  line-height: 1.7;
}

.models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.model-card {
  background: var(--bg);
  padding: 2rem;
  transition: background 0.2s;
}

.model-card:hover { background: var(--bg-2); }

.model-icon {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.model-name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.model-desc {
  font-size: 0.85rem;
  color: var(--fg-2);
  line-height: 1.5;
  margin-bottom: 1rem;
}

.model-rev {
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 500;
  opacity: 0.8;
}

/* === WHY === */
.why {
  padding: 8rem 8vw;
  border-bottom: 1px solid var(--border);
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: start;
}

.why-right { display: flex; flex-direction: column; gap: 0; }


.why-stat {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}
.why-stat:first-child { border-top: 1px solid var(--border); }

.why-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.why-desc {
  font-size: 0.85rem;
  color: var(--fg-2);
  line-height: 1.5;
}

/* === MANIFESTO === */
.manifesto {
  padding: 8rem 8vw;
  border-bottom: 1px solid var(--border);
  background: var(--accent-dim);
}

.manifesto-inner { max-width: 800px; }

.manifesto-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 2rem;
}

.manifesto-text {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 600;
  line-height: 1.3;
  color: var(--fg);
  margin-bottom: 1.5rem;
}

.manifesto-text.accent { color: var(--accent); }

/* === CLOSING === */
.closing {
  padding: 8rem 8vw;
  border-bottom: 1px solid var(--border);
}

.closing-inner { max-width: 640px; }

.closing-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 2rem;
}

.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 2rem;
  color: var(--fg);
}

.closing-body {
  color: var(--fg-2);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}

.closing-signature {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  opacity: 0.7;
}

/* === FOOTER === */
.footer {
  padding: 2rem 8vw;
}

.footer-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
}

.footer-sep { color: var(--fg-2); opacity: 0.3; }

.footer-tagline {
  font-size: 0.85rem;
  color: var(--fg-2);
}

.footer-powered {
  font-size: 0.75rem;
  color: var(--fg-2);
  opacity: 0.4;
  margin-left: auto;
}

/* === RESPONSIVE === */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 6rem 6vw 4rem;
    min-height: auto;
  }
  .hero-visual { display: none; }
  .hero-title { font-size: 3rem; }
  .why-grid { grid-template-columns: 1fr; gap: 3rem; }
  .models-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 2rem; flex-wrap: wrap; }
}

@media (max-width: 600px) {
  .hero, .models, .why, .manifesto, .closing { padding-left: 1.5rem; padding-right: 1.5rem; }
  .footer { padding-left: 1.5rem; padding-right: 1.5rem; }
  .hero-stats { gap: 1.5rem; }
}