:root {
  --bg: #0a0b0f;
  --bg-alt: #101218;
  --fg: #eef1f5;
  --fg-muted: #9aa3b2;
  --border: #23262f;
  --accent: #4fd7e0;
  --accent-fg: #06131a;
  --danger: #ff6b6b;
  --success: #4fd7a0;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  --container-w: 1100px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #fbfbfd;
    --bg-alt: #f2f3f6;
    --fg: #14161c;
    --fg-muted: #55596a;
    --border: #dfe2e8;
    --accent: #0f9aa6;
    --accent-fg: #ffffff;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow { max-width: 640px; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 12px;
}

h1, h2, h3 { line-height: 1.2; margin: 0 0 16px; }
h1 { font-size: clamp(2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); }
h3 { font-size: 1.1rem; margin-bottom: 8px; }
p { color: var(--fg-muted); margin: 0 0 12px; }

a { color: inherit; }

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  text-decoration: none;
  color: var(--fg);
  margin-right: auto;
}
.brand svg { color: var(--accent); }
.nav-links { display: flex; gap: 24px; }
.nav-links a { text-decoration: none; color: var(--fg-muted); font-size: 0.95rem; }
.nav-links a:hover { color: var(--fg); }

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary { background: var(--accent); color: var(--accent-fg); }
.btn-primary:hover { opacity: 0.9; }
.btn-ghost { border-color: var(--border); color: var(--fg); }
.btn-ghost:hover { border-color: var(--accent); }
.btn-small { padding: 8px 16px; font-size: 0.9rem; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* Hero */
.hero {
  position: relative;
  padding: 96px 0 72px;
  overflow: hidden;
  text-align: center;
  background: radial-gradient(ellipse 80% 60% at 50% -10%, color-mix(in srgb, var(--accent) 18%, transparent), transparent);
}
.hero .container { position: relative; z-index: 1; max-width: 760px; }
.hero-sub { font-size: 1.1rem; margin-bottom: 32px; }
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, color-mix(in srgb, var(--fg) 6%, transparent) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(90deg, color-mix(in srgb, var(--fg) 6%, transparent) 0 1px, transparent 1px 48px);
  mask-image: radial-gradient(ellipse 70% 60% at 50% 0%, black, transparent 70%);
}

/* Metrics */
.metrics { padding: 40px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.metric-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--accent);
}
.metric-label { display: block; font-size: 0.85rem; color: var(--fg-muted); margin-top: 4px; }

/* Sections */
.section { padding: 88px 0; }
.section-alt { background: var(--bg-alt); }
.section h2 { max-width: 560px; }

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.card, .team-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px;
  background: var(--bg);
}
.card-icon { color: var(--accent); margin-bottom: 16px; }
.card p, .team-card .role { font-size: 0.95rem; margin-bottom: 0; }

.avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 20%, transparent);
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 600;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}

/* Process flow */
.process-flow {
  list-style: none;
  margin: 40px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.process-flow li { border-top: 2px solid var(--accent); padding-top: 16px; }
.process-num {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.9rem;
  display: block;
  margin-bottom: 8px;
}
.process-flow p { font-size: 0.95rem; }

/* Contact form */
.contact-sub { margin-bottom: 32px; }
.field { margin-bottom: 20px; text-align: left; }
.field label {
  display: block;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: var(--fg-muted);
  margin-bottom: 6px;
}
.field input, .field textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 1rem;
}
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.field-hp {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
#form-status {
  margin-top: 16px;
  font-size: 0.9rem;
  min-height: 1.2em;
}
#form-status[data-state="success"] { color: var(--success); }
#form-status[data-state="error"] { color: var(--danger); }

/* Footer */
.footer { border-top: 1px solid var(--border); padding: 32px 0; }
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.brand-footer { font-size: 0.95rem; }
.footer-note { color: var(--fg-muted); font-size: 0.85rem; }

/* Reveal-on-scroll */
.reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }
  .reveal.is-visible {
    opacity: 1;
    transform: none;
  }
}

/* Responsive */
@media (max-width: 860px) {
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .card-grid { grid-template-columns: 1fr; }
  .process-flow { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .process-flow { grid-template-columns: 1fr; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
}