/* ============================================================================
   skateable. site-wide stylesheet
   Source of truth: /docs/brand/ · /BRAND.md
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* -------- Tokens -------- */
:root {
  /* Brand */
  --brand-primary: #3b82f6;
  --brand-primary-hover: #60a5fa;
  --brand-primary-dim: rgba(59, 130, 246, 0.12);
  --brand-primary-border: rgba(59, 130, 246, 0.25);

  /* Status (non-brand, semantic) */
  --status-amber: #f59e0b;
  --status-amber-hover: #d97706;
  --status-red: #ef4444;
  --status-green: #22c55e;

  /* Surfaces (dark theme is the default) */
  --bg: #0f0f0f;
  --surface: #1a1a1a;
  --surface-2: #222222;
  --surface-sunken: rgba(0, 0, 0, 0.25);
  --border: #1e1e1e;
  --border-strong: #333333;

  /* Text */
  --text-primary: #f0f0f0;
  --text-secondary: #cccccc;
  --text-muted: #888888;
  --text-dim: #555555;

  /* Atmospheric gradients (decorative, not brand) */
  --grad-blue: linear-gradient(135deg, #0a1830 0%, #0d1f3c 100%);
  --grad-purple: linear-gradient(135deg, #1a0d3c 0%, #0a1830 100%);
  --grad-amber: linear-gradient(135deg, #2a1a0d 0%, #1a0d2e 100%);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-mono: 'SF Mono', 'Menlo', 'Consolas', monospace;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 999px;

  /* Space */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;

  /* Layout */
  --maxw: 720px;
  --maxw-narrow: 680px;
  --maxw-wide: 960px;
}

/* -------- Reset -------- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
}

/*
  body styles intentionally omit `background` and `color`. Each page picks
  its own theme (dark `#0f0f0f` for marketing, white for legal docs). site.css
  only contributes font-family, sizing, and rendering hints so brand tokens
  apply without forcing a theme.
*/
body {
  font-family: var(--font-sans);
  min-height: 100vh;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--brand-primary);
  text-decoration: none;
}

a:hover {
  color: var(--brand-primary-hover);
}

code,
pre {
  font-family: var(--font-mono);
  font-size: 0.92em;
}

/* -------- Wordmark -------- */
/*
  Canonical brand wordmark. Always `skateable.` (lowercase).
  The full-stop is always brand-primary, in every theme.
  Usage:
    <span class="sk-wordmark">skateable<span class="sk-wordmark-dot">.</span></span>
*/
.sk-wordmark {
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: inherit;
}

.sk-wordmark-dot {
  color: var(--brand-primary);
}

/*
  Logo + wordmark lockup. Used on pages where the icon-only v2.0 logo sits
  at the top of the page and would otherwise leave the brand name implicit.
  Inherits the page's text colour via `color: inherit` on .sk-wordmark.
*/
.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
  margin-bottom: 20px;
}
.brand-lockup img {
  flex-shrink: 0;
}
.brand-lockup .sk-wordmark {
  font-size: 22px;
  letter-spacing: -0.02em;
  line-height: 1;
}

/* -------- Typography -------- */
h1,
.h1 {
  font-size: clamp(36px, 5vw, 48px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: var(--space-3);
}

h2,
.h2 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin-bottom: var(--space-3);
}

h3,
.h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--space-2);
}

.tagline,
.subtitle {
  font-size: 20px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: var(--space-10);
}

.label {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--brand-primary);
  margin-bottom: var(--space-3);
}

.label-amber {
  color: var(--status-amber);
}

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

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

/* -------- Layout -------- */
.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container-narrow {
  max-width: var(--maxw-narrow);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: var(--space-16) var(--space-6) 0;
  text-align: center;
}

.hero-logo {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  margin: 0 auto var(--space-5);
}

.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--space-6) var(--space-20);
}

/* -------- Feature grid -------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}

.feature {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 28px;
}

.feature h2 {
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--brand-primary);
  margin-bottom: var(--space-2);
  font-weight: 600;
}

.feature p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* -------- Cards (engine / popsense / crew style) -------- */
.card {
  background: var(--grad-blue);
  border: 1px solid var(--brand-primary-border);
  border-radius: var(--radius-md);
  padding: 36px 32px;
}

.card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-3);
}

.card-pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-4);
  margin: var(--space-6) 0 var(--space-8);
}

.card-pillar {
  background: var(--surface-sunken);
  border-radius: var(--radius-sm);
  padding: 18px 16px;
}

.card-pillar strong {
  display: block;
  font-size: 14px;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.card-pillar span {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* -------- CTA button -------- */
.cta-btn {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-primary);
  text-decoration: none;
  padding: 10px 20px;
  border: 1px solid var(--brand-primary-border);
  border-radius: var(--radius-sm);
  transition:
    background 0.15s ease,
    color 0.15s ease;
}

.cta-btn:hover {
  background: var(--brand-primary-dim);
  color: var(--brand-primary-hover);
}

.cta-btn-solid {
  background: var(--brand-primary);
  color: #ffffff;
  border-color: var(--brand-primary);
}

.cta-btn-solid:hover {
  background: var(--brand-primary-hover);
  border-color: var(--brand-primary-hover);
  color: #ffffff;
}

.cta-btn-amber {
  color: var(--status-amber);
  border-color: rgba(245, 158, 11, 0.35);
}

.cta-btn-amber:hover {
  background: rgba(245, 158, 11, 0.08);
  color: var(--status-amber);
}

/* -------- Footer -------- */
.site-footer {
  max-width: var(--maxw-narrow);
  margin: 0 auto;
  padding: 48px var(--space-6) 28px;
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.footer-col h3 {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  color: var(--text-muted);
  font-size: 14px;
  padding: 2px 0;
  display: inline-block;
}

.footer-col a:hover {
  color: var(--text-secondary);
}

.footer-meta {
  margin-top: var(--space-8);
  padding-top: var(--space-5);
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 12px;
  text-align: center;
}

@media (min-width: 560px) {
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
  }
}

/* -------- Badges -------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: var(--brand-primary-dim);
  color: var(--brand-primary);
}

.badge-amber {
  background: rgba(245, 158, 11, 0.14);
  color: var(--status-amber);
}

/* -------- Form inputs -------- */
.input,
.textarea,
.select {
  width: 100%;
  background: var(--surface-sunken);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 15px;
  color: var(--text-primary);
  font-family: inherit;
  -webkit-appearance: none;
  appearance: none;
}

.textarea {
  resize: vertical;
}

.input::placeholder,
.textarea::placeholder {
  color: var(--text-dim);
}

.input:focus,
.textarea:focus,
.select:focus {
  outline: none;
  border-color: var(--brand-primary);
}

/* -------- Utilities -------- */
.text-center {
  text-align: center;
}

.mb-2 {
  margin-bottom: var(--space-2);
}
.mb-3 {
  margin-bottom: var(--space-3);
}
.mb-4 {
  margin-bottom: var(--space-4);
}
.mb-5 {
  margin-bottom: var(--space-5);
}
.mb-6 {
  margin-bottom: var(--space-6);
}
.mb-8 {
  margin-bottom: var(--space-8);
}

/* -------- Small-screen tweaks -------- */
@media (max-width: 480px) {
  .hero {
    padding-top: var(--space-12);
  }
  .card {
    padding: 28px 20px;
  }
  .section {
    padding-bottom: var(--space-16);
  }
}