:root {
  /* Layout */
  --header-h: 58px;

  /* Color system — aligned to SJVIK Labs design system */
  --color-bg-900: #070c18;
  --color-bg-850: #0b1428;
  --color-bg-800: #111c34;
  --color-surface-glass: rgba(255, 255, 255, 0.06);
  --color-surface-glass-strong: rgba(255, 255, 255, 0.10);
  --color-border-glass: rgba(207, 223, 255, 0.2);
  --color-border-soft: rgba(207, 223, 255, 0.1);

  --color-text-strong: #f4f7ff;
  --color-text: #e7eeff;
  --color-text-muted: #9dafd4;
  --color-text-subtle: #7a90b8;

  --color-accent-cyan: #7ed7ff;
  --color-accent-indigo: #b8abff;
  --color-accent-blue: #67a9ff;

  /* Status colors */
  --ok:   #5adf9a;
  --warn: #ffce66;
  --err:  #ff7b90;

  --gradient-bg:
    radial-gradient(circle at 8% 10%,  rgba(63,  115, 194, 0.35), transparent 38%),
    radial-gradient(circle at 86% 18%, rgba(113,  77, 185, 0.28), transparent 44%),
    radial-gradient(circle at 48% 92%, rgba(37,   88, 170, 0.26), transparent 36%),
    linear-gradient(165deg, var(--color-bg-900) 0%, var(--color-bg-850) 52%, #060a15 100%);
  --gradient-button: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-indigo));

  /* Type scale */
  --font-sans: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --font-display: 'Plus Jakarta Sans', Inter, sans-serif;
  --font-size-xs: 0.84rem;
  --font-size-sm: 0.93rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.06rem;
  --font-size-h3: 1.12rem;
  --font-size-h2: clamp(1.55rem, 3vw, 2.35rem);
  --font-size-h1: clamp(2.35rem, 4.8vw, 4.25rem);
  --line-body: 1.72;
  --line-tight: 1.08;

  /* Spacing scale */
  --space-1: 0.4rem;
  --space-2: 0.65rem;
  --space-3: 0.9rem;
  --space-4: 1.2rem;
  --space-5: 1.5rem;
  --space-6: 1.9rem;
  --space-7: 2.4rem;
  --space-8: 3rem;
  --space-9: 4rem;
  --space-10: 5.8rem;

  /* Radius */
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-1: 0 12px 30px rgba(2, 8, 20, 0.36);
  --shadow-2: 0 20px 52px rgba(3, 8, 19, 0.5);
  --shadow-focus: 0 0 0 2px rgba(126, 215, 255, 0.35);

  /* Buttons */
  --button-text: #071124;
  --button-pad-y: 0.75rem;
  --button-pad-x: 1.08rem;
  --button-font-weight: 700;

  /* Motion (transform + opacity only) */
  --ease-premium: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 160ms;
  --dur-base: 230ms;
  --dur-reveal: 680ms;

  /* Layering */
  --z-below: -1;
  --z-base: 1;
  --z-sticky: 100;
  --z-menu: 110;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

html, body { margin: 0; padding: 0; }

body {
  min-height: 100vh;
  overflow-x: hidden;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--gradient-bg);
  padding-top: var(--header-h);
}

h1, h2, h3 {
  margin: 0 0 0.65rem;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--color-text-strong);
  font-family: var(--font-display);
}

p, ul {
  margin: 0;
  line-height: var(--line-body);
  color: var(--color-text-muted);
}

a { color: inherit; }

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

/* ── Background glows ──────────────────────────────────────────── */
.bg-glow {
  position: fixed;
  width: 38rem; height: 38rem;
  border-radius: 50%;
  filter: blur(94px);
  opacity: 0.22;
  pointer-events: none;
  z-index: var(--z-below);
}
.bg-glow--one { top: -14rem; left: -8rem;  background: #0ea5e9; }
.bg-glow--two { top: 22%;   right: -12rem; background: #8b5cf6; }

/* ── Glass ─────────────────────────────────────────────────────── */
.glass {
  border: 1px solid var(--color-border-glass);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--color-surface-glass-strong), var(--color-surface-glass));
  box-shadow: var(--shadow-2);
  backdrop-filter: blur(16px) saturate(130%);
  -webkit-backdrop-filter: blur(16px) saturate(130%);
}

/* ── Site Header ───────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: var(--z-sticky);
  background: rgba(7, 12, 24, 0.88);
  border-bottom: 1px solid var(--color-border-glass);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--space-4);
}

.brand {
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: .95rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}
.brand span { color: var(--color-accent-cyan); }

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.site-nav a {
  text-decoration: none;
  font-size: .86rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--dur-fast) var(--ease-premium);
}
.site-nav a:hover { color: var(--color-text); }

.nav-toggle {
  display: none;
  padding: 0.42rem 0.65rem;
  border-radius: 8px;
  border: 1px solid var(--color-border-glass);
  color: var(--color-text-muted);
  background: transparent;
  font-size: .82rem;
  cursor: pointer;
}

/* ── Hero ──────────────────────────────────────────────────────── */
.hero {
  padding: var(--space-10) 0 var(--space-8);
}

.eyebrow, .kicker {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--color-accent-cyan);
}
.eyebrow { margin-bottom: var(--space-4); }
.kicker  { margin-bottom: var(--space-3); }

h1 {
  max-width: 15ch;
  line-height: var(--line-tight);
  font-size: var(--font-size-h1);
  margin-bottom: var(--space-4);
}

.hero-copy {
  max-width: 64ch;
  font-size: var(--font-size-lg);
  color: var(--color-text);
}

.hero-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

/* ── Buttons ───────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--button-text);
  background: var(--gradient-button);
  padding: var(--button-pad-y) var(--button-pad-x);
  font-weight: var(--button-font-weight);
  box-shadow: var(--shadow-1);
  transition-property: transform, opacity;
  transition-duration: var(--dur-base);
  transition-timing-function: var(--ease-premium);
}
.btn:hover {
  opacity: 0.92;
  transform: translateY(-2px);
}
.btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}
.btn--ghost {
  color: var(--color-text);
  border: 1px solid var(--color-border-glass);
  background: rgba(255, 255, 255, 0.04);
  box-shadow: none;
}
.btn--small {
  padding: 0.42rem 0.72rem;
  font-size: .82rem;
}

/* ── Hero highlights ───────────────────────────────────────────── */
.hero-highlights {
  margin-top: var(--space-7);
  padding: var(--space-5);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}
.hero-highlights article { padding: var(--space-1); }
.hero-highlights h2 {
  font-size: 1.02rem;
  margin-bottom: 0.45rem;
}
.hero-highlights p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* ── Sections ──────────────────────────────────────────────────── */
.section {
  padding: var(--space-8) 0;
}

.section-head {
  max-width: 74ch;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-soft);
}
.section-head h2 {
  margin-bottom: var(--space-2);
  font-size: var(--font-size-h2);
}

/* ── Grid layouts ──────────────────────────────────────────────── */
.grid { display: grid; gap: var(--space-4); }
.cards-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cards-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

/* ── Cards / Panels ────────────────────────────────────────────── */
.card, .panel, .connect, .chip-wrap {
  padding: var(--space-5);
}
.card, .panel {
  border: 1px solid var(--color-border-soft);
}
.card h3, .panel h3 {
  font-size: var(--font-size-h3);
  margin-bottom: 0.55rem;
}
.card p + p { margin-top: var(--space-2); }

.meta {
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--color-accent-cyan);
  opacity: 0.7;
}

.panel ul {
  padding-left: 1.1rem;
  display: grid;
  gap: var(--space-2);
}

/* ── Chip / Stack ──────────────────────────────────────────────── */
.chip-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: var(--space-3);
}
.chip {
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-glass);
  background: rgba(207, 223, 255, 0.07);
  color: var(--color-text);
  font-size: 0.84rem;
  font-weight: 600;
  padding: 0.38rem 0.72rem;
  letter-spacing: 0.02em;
}
.chip--cert {
  border-color: color-mix(in srgb, var(--ok) 28%, transparent);
  color: var(--color-text-strong);
}
.chip--inprogress {
  border-color: color-mix(in srgb, var(--warn) 22%, transparent);
  color: var(--color-text-muted);
  opacity: 0.85;
}

/* ── Connect ───────────────────────────────────────────────────── */
.connect {
  text-align: center;
  padding: var(--space-7) var(--space-6);
}
.connect h2 { margin-bottom: 0.6rem; }
.connect p {
  max-width: 62ch;
  margin: 0 auto;
}
.connect-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

/* ── Footer ────────────────────────────────────────────────────── */
.footer {
  text-align: center;
  padding: var(--space-6) 0 var(--space-8);
  border-top: 1px solid var(--color-border-soft);
  margin-top: var(--space-2);
}
.footer p {
  font-size: 0.85rem;
  color: var(--color-text-subtle);
}

/* ── Reveal animation ──────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition-property: opacity, transform;
  transition-duration: var(--dur-reveal);
  transition-timing-function: var(--ease-premium);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ────────────────────────────────────────────────── */
@media (max-width: 1000px) {
  .hero-highlights,
  .cards-3,
  .cards-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .site-nav {
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    z-index: var(--z-menu);
    padding: var(--space-3) var(--space-5);
    border-bottom: 1px solid var(--color-border-glass);
    background: rgba(7, 12, 24, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: none;
    flex-direction: column;
    gap: var(--space-3);
  }
  .site-nav.open { display: flex; }
  .nav-toggle { display: inline-flex; }
}