:root {
  --bsk-navy: #0f135a;
  --bsk-navy-soft: #171e8e;
  --bsk-cyan: #06b6d4;
  --bsk-cyan-dark: #0891b2;

  --ink: #0f172a;
  --ink-soft: #334155;
  --ink-mute: #64748b;

  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --bg-card: #ffffff;

  --border: #e2e8f0;
  --border-strong: #cbd5e1;

  --terminal-bg: #0b1027;
  --terminal-text: #e2e8f0;
  --terminal-dim: #94a3b8;
  --terminal-ok: #34d399;

  --shadow-sm: 0 1px 2px rgba(15, 19, 90, 0.04);
  --shadow-md:
    0 1px 3px rgba(15, 19, 90, 0.06), 0 4px 12px rgba(15, 19, 90, 0.05);
  --shadow-lg: 0 10px 30px rgba(15, 19, 90, 0.08);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --font-sans:
    "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    sans-serif;
  --font-mono:
    "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco,
    "Cascadia Code", monospace;
}

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

* {
  margin: 0;
}

html,
body {
  font-size: 100%;
}

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  font-size: 1.0625rem;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

a {
  color: var(--bsk-navy);
  text-decoration: none;
  transition: color 120ms ease;
}

a:hover {
  color: var(--bsk-cyan-dark);
}

code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  color: var(--bsk-navy);
}

/* ---- layout ---- */

.site-header,
main,
.site-footer {
  max-width: 960px;
  margin-inline: auto;
  padding-inline: 24px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 28px 8px;
}

.logo img,
.logo-small img {
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 12px;
}

.badge {
  display: inline-block;
  padding: 6px 12px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--bsk-cyan-dark);
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.25);
  border-radius: 999px;
}

/* ---- hero ---- */

.hero {
  padding-block: 64px 48px;
  text-align: left;
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.025em;
  font-weight: 800;
  color: var(--bsk-navy);
  margin-bottom: 20px;
}

.hero h1 .accent {
  color: var(--bsk-cyan);
}

.lede {
  font-size: 1.1875rem;
  color: var(--ink-soft);
  max-width: 62ch;
  margin-bottom: 36px;
}

/* ---- terminal ---- */

.terminal {
  background: var(--terminal-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.terminal-bar {
  display: flex;
  gap: 6px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.terminal-bar .dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
}

.terminal pre {
  margin: 0;
  padding: 20px 22px 24px;
  color: var(--terminal-text);
  overflow-x: auto;
}

.terminal pre code {
  background: transparent;
  border: 0;
  padding: 0;
  color: inherit;
  font-family: inherit;
  font-size: inherit;
}

.terminal .prompt {
  color: var(--bsk-cyan);
  user-select: none;
}

.terminal .cmd {
  color: #ffffff;
  font-weight: 500;
}

.terminal .ok {
  color: var(--terminal-ok);
  font-weight: 700;
}

.terminal .dim {
  color: var(--terminal-dim);
}

.terminal .link {
  color: var(--bsk-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---- features ---- */

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-block: 64px 56px;
}

.feature {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition:
    border-color 160ms ease,
    transform 160ms ease,
    box-shadow 160ms ease;
}

.feature:hover {
  border-color: var(--bsk-cyan);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(6, 182, 212, 0.1);
  color: var(--bsk-cyan-dark);
  margin-bottom: 16px;
}

.feature h2 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--bsk-navy);
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.feature p {
  color: var(--ink-soft);
  font-size: 0.9375rem;
  line-height: 1.55;
}

.feature code {
  font-size: 0.85em;
}

/* ---- what ---- */

.what {
  padding-block: 24px 80px;
  max-width: 70ch;
}

.what h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--bsk-navy);
  letter-spacing: -0.015em;
  margin-bottom: 16px;
}

.what p {
  color: var(--ink-soft);
  margin-bottom: 16px;
  font-size: 1.0625rem;
}

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

/* ---- footer ---- */

.site-footer {
  border-top: 1px solid var(--border);
  padding-block: 32px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.muted {
  color: var(--ink-mute);
  font-size: 0.9375rem;
}

/* ---- responsive ---- */

@media (max-width: 720px) {
  .site-header {
    padding-block: 20px 4px;
  }

  .hero {
    padding-block: 40px 32px;
  }

  .features {
    grid-template-columns: 1fr;
    gap: 16px;
    padding-block: 40px;
  }

  .what {
    padding-block: 16px 56px;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    padding-block: 24px 36px;
  }

  .terminal {
    font-size: 0.875rem;
  }
}