/* Axiom Robotics — placeholder site styles (part 1: base, header, hero) */
:root {
  --bg: #070d18;
  --bg-soft: #0b1526;
  --card: #0d1830;
  --card-alt: #0a1428;
  --border: rgba(148, 197, 255, 0.14);
  --text: #e8eef7;
  --muted: #9fb0c7;
  --accent: #22d3ee;
  --accent-dim: rgba(34, 211, 238, 0.14);
  --radius: 18px;
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.grid-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(56, 130, 190, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 130, 190, 0.07) 1px, transparent 1px),
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(34, 211, 238, 0.14), transparent);
  background-size: 44px 44px, 44px 44px, 100% 100%;
}

.container {
  width: min(1080px, calc(100% - 3rem));
  margin: 0 auto;
}

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(7, 13, 24, 0.78);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--text);
}
.brand-mark { display: inline-flex; }
.brand-text {
  font-weight: 800;
  letter-spacing: 0.12em;
  font-size: 0.95rem;
}
.brand-text span { color: var(--accent); }

.site-nav { display: flex; align-items: center; gap: 1.6rem; }
.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}
.site-nav a:hover { color: var(--text); }
.nav-cta {
  color: var(--accent) !important;
  border: 1px solid rgba(34, 211, 238, 0.45);
  padding: 0.45rem 1rem;
  border-radius: 999px;
  background: var(--accent-dim);
}
.nav-cta:hover { background: rgba(34, 211, 238, 0.24); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
}
.nav-toggle span {
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* hero */
.hero { padding: 5.5rem 0 3.5rem; }
.hero-inner { max-width: 760px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(34, 211, 238, 0.3);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 1.6rem;
}
.pulse {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1.4rem;
}
.accent {
  background: linear-gradient(92deg, #22d3ee, #7dd3fc 60%, #a5b4fc);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 56ch;
  margin-bottom: 2rem;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-bottom: 2.8rem; }
.btn {
  display: inline-block;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.8rem 1.5rem;
  border-radius: 12px;
}
.btn-primary { background: var(--accent); color: #04222a; }
.btn-primary:hover { background: #67e8f9; }
.btn-ghost {
  color: var(--text);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
}
.btn-ghost:hover { border-color: rgba(34, 211, 238, 0.5); }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  border-top: 1px solid var(--border);
  padding-top: 1.6rem;
}
.hero-stats div { display: flex; flex-direction: column; gap: 0.15rem; }
.hero-stats dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}
.hero-stats dd { font-weight: 600; font-size: 1.02rem; }

/* sections, cards, contact, footer, responsive */
.section { padding: 1.4rem 0; scroll-margin-top: 5rem; }
.card {
  background: linear-gradient(180deg, var(--card), var(--card-alt));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1.8rem, 4vw, 3rem);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), #7dd3fc, transparent);
}
.card-alt::before { background: linear-gradient(90deg, #7dd3fc, #a5b4fc, transparent); }
.card-highlight {
  border-color: rgba(34, 211, 238, 0.35);
  box-shadow: 0 0 60px rgba(34, 211, 238, 0.08);
}
.section-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.9rem;
}
.card h2 {
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
}
.section-body {
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 62ch;
}
.value-list {
  list-style: none;
  margin-top: 1.8rem;
  display: grid;
  gap: 0.9rem;
}
.value-list li {
  display: grid;
  gap: 0.15rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.2rem;
}
.value-list strong { font-size: 1rem; }
.value-list span { color: var(--muted); font-size: 0.93rem; }
.contact-box {
  text-align: center;
  border: 1px dashed rgba(34, 211, 238, 0.4);
  border-radius: var(--radius);
  padding: clamp(2rem, 5vw, 3.2rem);
  background: rgba(34, 211, 238, 0.04);
}
.contact-box h2 { font-size: 1.6rem; margin-bottom: 0.6rem; }
.contact-box p { color: var(--muted); }
.contact-email {
  display: inline-block;
  margin: 1.1rem 0 0.6rem;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, 0.4);
}
.contact-email:hover { color: #67e8f9; }
.contact-note { font-size: 0.85rem !important; opacity: 0.75; }
.site-footer {
  margin-top: 2.5rem;
  border-top: 1px solid var(--border);
  padding: 1.6rem 0 2.2rem;
  color: var(--muted);
  font-size: 0.88rem;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.25rem 0.8rem;
}
@media (max-width: 640px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--bg-soft);
    border-bottom: 1px solid var(--border);
    padding: 0.5rem 1.5rem 1rem;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 0.7rem 0; border-top: 1px solid var(--border); }
  .site-nav a:first-child { border-top: none; }
  .nav-cta { text-align: center; margin-top: 0.5rem; }
  .nav-toggle { display: flex; }
  .hero { padding: 3.5rem 0 2.5rem; }
  .hero-stats { grid-template-columns: 1fr; }
}