/* Synathra Lab static skeleton v0.1
   Mobile-first CSS. No external dependencies. */

:root {
  --bg: #0d1117;
  --bg-elevated: #111827;
  --panel: #151d2b;
  --panel-soft: #1b2536;
  --text: #eef3fb;
  --muted: #aebbd0;
  --subtle: #7d8aa2;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #9be7d1;
  --accent-strong: #5fe1bb;
  --warning: #f6d365;
  --danger: #ff9a9e;
  --ok: #9be7d1;
  --max: 1120px;
  --radius: 18px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
  --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  margin: 0;
  font-family: var(--font);
  background:
    radial-gradient(circle at top left, rgba(95, 225, 187, 0.14), transparent 34rem),
    radial-gradient(circle at top right, rgba(98, 141, 255, 0.14), transparent 30rem),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
}

img, svg { max-width: 100%; height: auto; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #071018;
  padding: 0.75rem 1rem;
  z-index: 100;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(13, 17, 23, 0.82);
  border-bottom: 1px solid var(--line);
}

.nav {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.85rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 760;
  color: var(--text);
  letter-spacing: 0.01em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--accent), #83a6ff);
  color: #081018;
  font-weight: 900;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: wrap;
  justify-content: flex-start;
}

.nav-links a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 0.45rem 0.72rem;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--text);
  background: rgba(255, 255, 255, 0.07);
  text-decoration: none;
}

main { min-height: 70vh; }

.section, .hero {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
}

.hero {
  padding: 4.5rem 0 3.25rem;
}

.hero.compact { padding: 3.25rem 0 2rem; }

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 750;
}

h1, h2, h3 {
  line-height: 1.08;
  letter-spacing: -0.03em;
}

h1 {
  margin: 0;
  max-width: 920px;
  font-size: clamp(2.35rem, 12vw, 5.5rem);
}

h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.65rem, 5vw, 3rem);
}

h3 {
  margin: 0 0 0.6rem;
  font-size: 1.2rem;
}

.lead {
  margin: 1.25rem 0 0;
  max-width: 760px;
  font-size: clamp(1.05rem, 2.8vw, 1.35rem);
  color: var(--muted);
}

.kicker-row {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.badge, .status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 32px;
  padding: 0.32rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.045);
  font-size: 0.92rem;
}

.status-badge.ok { color: #071018; background: var(--ok); border-color: transparent; font-weight: 800; }
.status-badge.warn { color: #231a00; background: var(--warning); border-color: transparent; font-weight: 800; }

.cta-row {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  align-items: stretch;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1rem;
  border-radius: 999px;
  font-weight: 760;
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255,255,255,0.06);
}

.button.primary {
  color: #071018;
  background: var(--accent-strong);
  border-color: transparent;
}

.button:hover { text-decoration: none; transform: translateY(-1px); }

.section { padding: 2.5rem 0; }
.section.narrow { max-width: 840px; }

.grid {
  display: grid;
  gap: 1rem;
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.035));
  padding: 1.15rem;
  box-shadow: var(--shadow);
}

.card.soft { background: rgba(255,255,255,0.04); box-shadow: none; }

.card p:last-child { margin-bottom: 0; }

.metric {
  font-size: clamp(1.75rem, 8vw, 3.5rem);
  line-height: 1;
  letter-spacing: -0.055em;
  font-weight: 860;
}

.metric-label { margin-top: 0.45rem; color: var(--muted); }

.muted { color: var(--muted); }
.subtle { color: var(--subtle); }

.chain {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.chain span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.45rem 0.7rem;
  background: rgba(255,255,255,0.04);
}

.boundary {
  border-left: 4px solid var(--warning);
  padding: 1rem 1.1rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(246, 211, 101, 0.08);
}

.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.035);
}

table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

th, td {
  padding: 0.9rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  color: var(--text);
  font-size: 0.88rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: rgba(255,255,255,0.05);
}

td { color: var(--muted); }
tr:last-child td { border-bottom: 0; }

.form {
  display: grid;
  gap: 1rem;
}

label { display: grid; gap: 0.35rem; color: var(--muted); font-weight: 650; }

input, textarea, select {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.05);
  color: var(--text);
  border-radius: 12px;
  padding: 0.72rem 0.85rem;
  font: inherit;
}

textarea { min-height: 120px; resize: vertical; }

input:focus, textarea:focus, select:focus {
  outline: 3px solid rgba(95, 225, 187, 0.23);
  border-color: var(--accent);
}

.site-footer {
  margin-top: 3rem;
  border-top: 1px solid var(--line);
  color: var(--subtle);
  background: rgba(0,0,0,0.16);
}

.footer-inner {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  padding: 2rem 0;
  display: grid;
  gap: 1rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.note {
  border: 1px dashed rgba(255,255,255,0.22);
  border-radius: var(--radius);
  padding: 1rem;
  color: var(--muted);
  background: rgba(255,255,255,0.035);
}

@media (min-width: 640px) {
  .cta-row { flex-direction: row; align-items: center; }
  .button { width: auto; }
  .grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 860px) {
  .hero { padding: 6rem 0 4.5rem; }
  .grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .split { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 1.25rem; align-items: start; }
  .footer-inner { grid-template-columns: 1fr auto; align-items: center; }
}