/* ---------- Design tokens ---------- */
:root {
  --bg: #0A0F14;
  --surface: #121821;
  --text: #E6EEF6;
  --muted: #A9B5C2;
  --accent: #2DE2E6;
  --line: #1E2732;
  --success: #24C09A;
  --warning: #F5A623;

  --maxw: 1200px;
  --radius: 10px;
  --space-1: 8px;
  --space-2: 12px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 72px;

  --shadow-1: 0 10px 30px rgba(0,0,0,0.35);
}

@media (prefers-color-scheme: dark) {
  :root { color-scheme: dark; }
}

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

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  line-height: 1.55;
}

img { max-width: 100%; display: block; }

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

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.section {
  padding-block: clamp(56px, 8vw, 120px);
  border-top: 1px solid var(--line);
}

h1, h2, h3 {
  line-height: 1.2;
  margin: 0 0 var(--space-4) 0;
}
h1 { font-size: clamp(32px, 6vw, 56px); }
h2 { font-size: clamp(24px, 4vw, 36px); }
h3 { font-size: clamp(18px, 3vw, 24px); }

p { margin: 0 0 var(--space-4) 0; color: var(--muted); }

/* ---------- Header / Nav ---------- */
.skip-link {
  position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden;
}
.skip-link:focus {
  position: fixed; left: var(--space-4); top: var(--space-4);
  width: auto; height: auto; padding: var(--space-2) var(--space-3);
  background: var(--surface); color: var(--text); z-index: 1000; border-radius: 6px;
}

.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(18,24,33,0.8); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.navbar {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: 14px;
}
.logo { display: inline-flex; align-items: center; gap: 10px; }
.logo svg { height: 26px; width: auto; }
.nav {
  display: flex; gap: 22px; align-items: center;
}
.nav a {
  color: var(--text); opacity: 0.85;
  padding: 8px 6px; border-radius: 6px;
}
.nav a.active, .nav a:hover { opacity: 1; background: rgba(255,255,255,0.04); text-decoration: none; }
.cta {
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--accent);
  color: var(--bg);
  background: var(--accent);
  padding: 10px 14px;
  border-radius: 8px; font-weight: 600;
}
.cta.secondary {
  background: transparent; color: var(--accent);
}

/* Mobile menu (no JS) */
.menu-toggle { display: none; }
.menu-btn { display: none; }
@media (max-width: 1024px) {
  .menu-btn {
    display: inline-flex; gap: 8px; align-items: center;
    padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px;
    background: transparent; color: var(--text);
  }
  .nav { display: none; position: fixed; inset: 56px 0 0 0; background: var(--surface); padding: var(--space-5); flex-direction: column; gap: 12px; }
  .menu-toggle:checked ~ .nav { display: flex; }
  .cta { width: 100%; justify-content: center; }
}

/* ---------- Hero with abstract "caustics" ---------- */
.hero {
  position: relative; overflow: hidden;
  background: radial-gradient(1200px 600px at 10% 20%, rgba(45,226,230,0.10), transparent),
              radial-gradient(800px 400px at 90% 30%, rgba(45,226,230,0.06), transparent),
              linear-gradient(180deg, #0A0F14 0%, #0A0F14 60%, #0C141B 100%);
}
.hero .container { padding-block: clamp(64px, 10vw, 140px); }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--space-6); align-items: center; }
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; }
}

.hero-kicker { color: var(--accent); letter-spacing: .12em; text-transform: uppercase; font-size: 12px; margin-bottom: var(--space-2); }

.hero-visual {
  position: relative; aspect-ratio: 4/3; border-radius: var(--radius);
  background: #0B141C; border: 1px solid var(--line); overflow: hidden; box-shadow: var(--shadow-1);
}
.hero-visual .caption {
  position: absolute; bottom: 8px; right: 10px; font-size: 12px; color: var(--muted); background: rgba(0,0,0,0.35); padding: 4px 8px; border-radius: 6px;
}
/* "Caustics": animated conic gradients + mask */
.hero-visual::before,
.hero-visual::after {
  content: ""; position: absolute; inset: -20%;
  background:
    repeating-conic-gradient(from 0deg, rgba(45,226,230,0.18) 0 6deg, transparent 6deg 12deg);
  mix-blend-mode: screen; filter: blur(18px) saturate(120%);
  animation: drift 18s linear infinite;
  opacity: 0.35;
}
.hero-visual::after {
  animation-duration: 28s; animation-direction: reverse; opacity: 0.25;
}

@keyframes drift {
  0% { transform: translate3d(0,0,0) rotate(0deg) scale(1.1); }
  50% { transform: translate3d(2%, -1%, 0) rotate(180deg) scale(1.1); }
  100% { transform: translate3d(0,0,0) rotate(360deg) scale(1.1); }
}
@media (prefers-reduced-motion: reduce) {
  .hero-visual::before, .hero-visual::after { animation: none; }
}

/* ---------- Cards, grids, tables ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-5); }
@media (max-width: 900px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
}
.card {
  padding: var(--space-5); background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.00));
  border: 1px solid var(--line); border-radius: var(--radius);
}
.card h3 { margin-bottom: var(--space-2); }
.kpi { font-size: 28px; color: var(--text); font-weight: 600; }

.table {
  width: 100%; border-collapse: collapse; overflow: hidden; border-radius: var(--radius);
  border: 1px solid var(--line);
}
.table th, .table td { padding: 14px 16px; border-bottom: 1px solid var(--line); text-align: left; }
.table th { font-weight: 600; color: var(--muted); }
.table thead th { position: sticky; top: 56px; background: var(--surface); z-index: 1; }
@media (max-width: 768px) {
  .table { display: block; }
  .table thead { display: none; }
  .table tbody { display: grid; gap: var(--space-3); }
  .table tr { display: grid; gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
  .table td { display: grid; grid-template-columns: 40% 60%; border-bottom: 1px dashed var(--line); }
  .table td::before { content: attr(data-label); color: var(--muted); padding-right: var(--space-3); }
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: #0A1017;
}
.footer-top {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-6);
  padding-block: var(--space-6);
}
.footer-col h4 { margin: 0 0 var(--space-3) 0; font-size: 14px; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.footer-col a { display: block; margin: 8px 0; color: #C9D6E2; opacity: 0.85; }
.footer-col a:hover { opacity: 1; text-decoration: none; }
.footer-bottom {
  padding-block: var(--space-4); border-top: 1px solid var(--line); color: var(--muted); font-size: 14px;
}
@media (max-width: 900px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
}

/* ---------- Utilities ---------- */
.muted { color: var(--muted); }
.center { text-align: center; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-0 { margin-bottom: 0; }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; }
.badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; font-size: 12px; color: var(--muted); }
hr.div { border: none; border-top: 1px solid var(--line); margin-block: var(--space-5); }

/* ---------- Forms ---------- */
input, select, textarea {
  width: 100%; padding: 12px 14px; border-radius: 8px;
  background: #0E151D; border: 1px solid var(--line); color: var(--text);
}
label { display: block; margin-bottom: 8px; color: #DDE7F0; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
@media (max-width: 800px) { .form-row { grid-template-columns: 1fr; } }
.form-actions { display: flex; gap: 12px; align-items: center; }

/* ---------- Placeholder "product silhouette" ---------- */
.silhouette {
  position: relative; aspect-ratio: 16/9; border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.03), transparent);
  border: 1px solid var(--line); overflow: hidden;
}
.silhouette svg { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.7; }
.silhouette .caption { position: absolute; bottom: 8px; right: 10px; font-size: 12px; color: var(--muted); background: rgba(0,0,0,0.35); padding: 4px 8px; border-radius: 6px; }

/* ---------- Announcement bar ---------- */
.announce {
  background: linear-gradient(90deg, rgba(45,226,230,0.08), transparent);
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.announce .container { padding-block: 10px; display: flex; justify-content: space-between; align-items: center; gap: 12px; }