:root {
  --bg: #07090c;
  --surface: #0e1117;
  --surface-alt: #141820;
  --fg: #e8e9ed;
  --fg-muted: #6b7280;
  --accent: #ff6b35;
  --accent-dim: rgba(255, 107, 53, 0.12);
  --border: rgba(255,255,255,0.07);
  --font-display: 'Syne', sans-serif;
  --font-mono: 'DM Mono', monospace;
  --font-body: 'Inter', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 0;
  padding: 0 8vw;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 60% 40%, rgba(255,107,53,0.05) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner { position: relative; z-index: 2; }

.hero-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2rem;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(3rem, 5.5vw, 5.2rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 2.5rem;
  color: var(--fg);
}

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

.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  line-height: 1.7;
  color: var(--fg-muted);
  max-width: 460px;
  font-weight: 400;
}

/* ── PROXIMITY RINGS ── */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 480px;
  z-index: 2;
}

.proximity-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255, 107, 53, 0.18);
}

.ring-1 { width: 380px; height: 380px; }
.ring-2 { width: 240px; height: 240px; border-color: rgba(255,107,53,0.3); }
.ring-3 { width: 120px; height: 120px; border-color: rgba(255,107,53,0.5); background: radial-gradient(circle, rgba(255,107,53,0.15) 0%, transparent 70%); }

.ring-label {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: rgba(255,107,53,0.6);
  letter-spacing: 0.05em;
}
.r1 { top: 50%; left: calc(100% + 18px); transform: translateY(-50%); }
.r2 { top: 50%; right: calc(100% + 18px); transform: translateY(-50%); }
.r3 { top: 50%; right: calc(100% + 18px); transform: translateY(-50%); color: rgba(255,107,53,0.8); }

/* ── FEATURES ── */
.features {
  padding: 120px 8vw;
  background: var(--surface);
  position: relative;
}

.features::before {
  content: '';
  position: absolute;
  top: 0; left: 8vw; right: 8vw;
  height: 1px;
  background: var(--border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
}

.feature-card {
  background: var(--surface-alt);
  padding: 48px 44px;
  position: relative;
  transition: background 0.2s;
}

.feature-card:hover {
  background: #181d27;
}

.feature-number {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  margin-bottom: 1.5rem;
  letter-spacing: 0.1em;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
  color: var(--fg);
}

.feature-card p {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--fg-muted);
}

/* ── CLOSING ── */
.closing {
  padding: 120px 8vw;
  background: var(--bg);
  position: relative;
}

.closing::before {
  content: '';
  position: absolute;
  top: 0; left: 8vw; right: 8vw;
  height: 1px;
  background: var(--border);
}

.closing-inner { max-width: 700px; }

.closing blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 600;
  line-height: 1.25;
  color: var(--fg);
  margin-bottom: 3rem;
  letter-spacing: -0.02em;
}

.closing-statement {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--fg-muted);
}

/* ── FOOTER ── */
footer {
  padding: 48px 8vw;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.footer-inner {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.01em;
}

.footer-sep { color: var(--fg-muted); }

.footer-tagline {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--fg-muted);
  letter-spacing: 0.05em;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 100px 6vw 80px;
    min-height: auto;
    gap: 0;
  }

  .hero-visual { display: none; }

  .features { padding: 80px 6vw; }
  .features-grid { grid-template-columns: 1fr; }

  .closing { padding: 80px 6vw; }

  .footer-inner { flex-wrap: wrap; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: 2.8rem; }
  .feature-card { padding: 32px 28px; }
}

/* ── SHARED BUTTON TOKENS (landing page CTAs) ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 24px;
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: opacity 0.15s, transform 0.1s;
  text-decoration: none;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { opacity: 0.88; }
.btn-ghost { background: none; color: var(--fg-muted); border: 1px solid var(--border); }
.btn-ghost:hover { color: var(--fg); border-color: rgba(255,255,255,0.15); }
.btn-lg { padding: 14px 32px; font-size: 1rem; }