/* SkillCheck brand tokens — lifted exactly from getskillcheck.com DESIGN.md + index.html */
:root {
  --sc-dark: #1a1a1a;        /* near-black surfaces, footer, nav */
  --sc-mid: #2d2d2d;
  --sc-ink: #1f2937;         /* body text on light */
  --sc-light: #f5f5f5;       /* off-white section bg */
  --sc-accent: #047857;      /* primary green */
  --sc-accent-hover: #065f46;
  --sc-accent-light: #34d399;/* green on dark */
  --sc-muted: #5b616e;       /* WCAG AA: 5.70:1 on --sc-light #f5f5f5 (was #6b7280, 4.43:1) */
  --sc-muted-2: #696f7b;     /* WCAG AA: 4.63:1 on --sc-light #f5f5f5 (was #9ca3af, 2.32:1) */
  --sc-line: #e5e7eb;
  --sc-line-strong: #d1d5db;

  --sc-font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --sc-font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;

  --sc-maxw: 1080px;

  /* density-driven rhythm (overridden by [data-density]) */
  --sc-section-y: 80px;
  --sc-gap: 24px;
}

[data-density="compact"] {
  --sc-section-y: 52px;
  --sc-gap: 18px;
}

* { box-sizing: border-box; }

html { overflow-y: scroll; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sc-font-body);
  color: var(--sc-ink);
  background: #ffffff;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6,
.mono, code, pre, nav, .eyebrow {
  font-family: var(--sc-font-mono);
}

h1, h2, h3, h4 { font-weight: 700; line-height: 1.1; margin: 0; letter-spacing: -0.02em; }

a { color: inherit; }

code {
  font-family: var(--sc-font-mono);
  font-size: 0.86em;
}

.sc-wrap {
  max-width: var(--sc-maxw);
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
}

/* ── shared utility classes ─────────────────────────── */
.eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sc-accent);
}
.eyebrow.on-dark { color: var(--sc-accent-light); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--sc-font-mono);
  font-weight: 500;
  font-size: 16px;
  padding: 15px 26px;
  border: 1.5px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease;
  white-space: nowrap;
}
.btn-accent { background: var(--sc-accent); color: #fff; }
.btn-accent:hover { background: var(--sc-accent-hover); }
.btn-dark { background: var(--sc-dark); color: #fff; }
.btn-dark:hover { background: #000; }
.btn-ghost { background: transparent; color: var(--sc-ink); border-color: var(--sc-line-strong); }
.btn-ghost:hover { border-color: var(--sc-dark); background: var(--sc-dark); color: #fff; }
.btn-light { background: var(--sc-accent-light); color: var(--sc-dark); }
.btn-light:hover { background: #6ee7b7; }
.btn-ondark-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.28); }
.btn-ondark-ghost:hover { border-color: #fff; background: #fff; color: var(--sc-dark); }

.btn-lg { font-size: 17px; padding: 17px 30px; }
.btn-sm { font-size: 13px; padding: 9px 16px; }

/* small caps label */
.kicker { font-family: var(--sc-font-mono); font-size: 12px; color: var(--sc-muted); letter-spacing: 0.04em; }

/* tier chips */
.tier {
  display: inline-flex;
  align-items: center;
  font-family: var(--sc-font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 8px;
  border: 1px solid currentColor;
}
.tier-free { color: var(--sc-muted); }
.tier-pro { color: var(--sc-accent); }

/* hairline accent bar idiom */
.rule-accent { height: 3px; background: var(--sc-accent); width: 48px; }

::selection { background: var(--sc-accent-light); color: var(--sc-dark); }

/* entrance: reveal-on-scroll */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 480ms ease, transform 480ms ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none; }
  html { scroll-behavior: auto; }
}