:root {
  --bg: #FAFAF8;
  --surface: #FFFFFF;
  --primary: #0D9488;
  --primary-dark: #0F766E;
  --accent: #F59E0B;
  --text: #1C1917;
  --text-muted: #57534E;
  --border: #E7E5E4;
  --shadow: 0 4px 24px rgba(28, 25, 23, 0.08);
}

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

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

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

/* NAV */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 248, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-logo {
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  letter-spacing: -0.02em;
}
.nav-tagline {
  font-size: 13px;
  color: var(--text-muted);
}

/* HERO */
.hero {
  padding: 80px 24px 60px;
}
.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
}
.hero-headline {
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 40px;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
}
.stat-num {
  font-family: 'Sora', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  display: block;
  letter-spacing: -0.02em;
}
.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  display: block;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}
.hero-right {
  position: relative;
}
.hero-robot-img img {
  width: 100%;
  border-radius: 16px;
  box-shadow: var(--shadow);
  display: block;
  aspect-ratio: 4/3;
  object-fit: cover;
}

/* TECH SPECS */
.tech-specs {
  background: var(--text);
  color: #FAFAF8;
  padding: 80px 24px;
}
.specs-inner { max-width: 1200px; margin: 0 auto; }
.specs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
}
.spec-card {
  background: #292524;
  padding: 36px 28px;
  border-radius: 0;
  border: 1px solid rgba(255,255,255,0.06);
}
.spec-icon {
  color: var(--primary);
  margin-bottom: 20px;
}
.spec-value {
  font-family: 'Sora', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: #FAFAF8;
  margin-bottom: 4px;
}
.spec-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
}
.spec-desc {
  font-size: 14px;
  color: #A8A29E;
  line-height: 1.6;
}

/* FEATURES */
.features {
  padding: 100px 24px;
  background: var(--bg);
}
.features-inner { max-width: 1200px; margin: 0 auto; }
.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}
.section-headline {
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 60px;
}
.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 24px;
}
.feat-main { grid-column: 1; grid-row: 1; }
.feat {}
.features-grid .feat:nth-child(2) { grid-column: 2; grid-row: 1; }
.features-grid .feat:nth-child(3) { grid-column: 3; grid-row: 1; }
.features-grid .feat:nth-child(4) { grid-column: 2; grid-row: 2; }
.features-grid .feat:nth-child(5) { grid-column: 3; grid-row: 2; }
.feat-visual {
  background: #F5F4F2;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 16px;
  aspect-ratio: 16/10;
}
.feat-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.feat-content h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}
.feat-content p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* SURFACES */
.surfaces {
  padding: 100px 24px;
  background: var(--surface);
  border-top: 1px solid var(--border);
}
.surfaces-inner { max-width: 1200px; margin: 0 auto; }
.surfaces-text {
  margin-bottom: 60px;
}
.surfaces-text h2 {
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  color: var(--text);
}
.surfaces-body {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 540px;
  line-height: 1.7;
}
.surfaces-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.surface-card img {
  width: 100%;
  border-radius: 12px;
  display: block;
  aspect-ratio: 1;
  object-fit: cover;
  margin-bottom: 14px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.surface-label {
  font-family: 'Sora', sans-serif;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}
.surface-desc {
  font-size: 13px;
  color: var(--text-muted);
}

/* MANIFESTO */
.manifesto {
  padding: 100px 24px;
  background: #0F172A;
  color: #FAFAF8;
}
.manifesto-inner { max-width: 900px; margin: 0 auto; text-align: center; }
.manifesto-pill {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.2);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
}
.manifesto-headline {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  color: #FAFAF8;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.manifesto-body {
  font-size: 18px;
  color: #A8A29E;
  line-height: 1.75;
  margin-bottom: 48px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}
.manifesto-principles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 40px;
  text-align: left;
  max-width: 560px;
  margin: 0 auto;
}
.principle {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: #D6D3D1;
}
.principle-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: white;
}

/* FOOTER */
.footer {
  padding: 40px 24px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.footer-inner { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer-logo {
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  font-size: 16px;
}
.footer-by {
  font-size: 13px;
  color: var(--text-muted);
  margin-left: 8px;
}
.footer-meta {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-dot { color: var(--border); }

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-right { order: -1; }
  .specs-grid { grid-template-columns: 1fr 1fr; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .features-grid .feat-main { grid-column: 1; grid-row: 1; }
  .features-grid .feat:nth-child(2) { grid-column: 2; grid-row: 1; }
  .features-grid .feat:nth-child(3) { grid-column: 1; grid-row: 2; }
  .features-grid .feat:nth-child(4) { grid-column: 2; grid-row: 2; }
  .features-grid .feat:nth-child(5) { grid-column: 1 / -1; }
  .surfaces-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .hero { padding: 48px 20px 40px; }
  .hero-stats { flex-direction: column; align-items: flex-start; gap: 16px; }
  .stat-divider { display: none; }
  .specs-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .features-grid .feat { grid-column: auto !important; grid-row: auto !important; }
  .surfaces-grid { grid-template-columns: 1fr 1fr; }
  .manifesto-principles { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-meta { justify-content: center; flex-wrap: wrap; }
}