/* ===========================================================================
   site.css — full page foundation (body, typography, containers, hero,
   cards, buttons) PLUS the nav + footer styling from nav-block.css.
   For pages without a fully custom layout (everything except the
   manifesto and harness).
   Pages with their own layout import nav-block.css instead.
   =========================================================================== */
@import url('nav-block.css');

/* ---- Reset + tokens ---------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

:root {
  /* Colour tokens */
  --bg:            #fafaf7;
  --bg-alt:        #f3f3ee;
  --surface:       #ffffff;
  --text:          #1a1a1a;
  --text-muted:    #6a6a6a;
  --text-faint:    #999;
  --border:        #d8d8d2;
  --border-faint:  #ececec;
  --accent:        #2a6f4a;
  --accent-hover:  #1e5538;
  --accent-bg:     #eef4ee;
  --highlight:     #fdf3c4;
  --highlight-hover: #fde68a;
  --warn:          #c46900;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', Monaco, 'Cascadia Code', monospace;
  --font-nayana: 'Nayana', var(--font-sans);

  /* Spacing scale (4px base) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;

  /* Layout */
  --container: 1100px;
  --container-narrow: 760px;
  --radius: 6px;
  --shadow: 0 2px 6px rgba(0,0,0,0.04);
}

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

/* ---- Nayana font face (single source for all pages) ------------------- */
@font-face {
  font-family: 'Nayana';
  src: url('fonts/Nayana-Regular.otf') format('opentype');
  font-display: swap;
}

/* ---- Container + layout helpers --------------------------------------- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-4);
}
.container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 var(--space-4);
}
@media (min-width: 600px) {
  .container, .container-narrow { padding: 0 var(--space-5); }
}

/* ---- Typography -------------------------------------------------------- */
h1, h2, h3 { line-height: 1.25; margin: var(--space-6) 0 var(--space-3); }
h1 { font-size: 28px; font-weight: 700; }
h2 { font-size: 22px; font-weight: 600; }
h3 { font-size: 18px; font-weight: 600; }
@media (min-width: 720px) {
  h1 { font-size: 36px; }
  h2 { font-size: 26px; }
  h3 { font-size: 20px; }
}
p { margin: 0 0 var(--space-4); }
.lead { font-size: 17px; color: var(--text-muted); line-height: 1.6; }
@media (min-width: 720px) { .lead { font-size: 19px; } }

code { font-family: var(--font-mono); font-size: 0.92em; background: var(--bg-alt); padding: 1px 5px; border-radius: 3px; }
pre { font-family: var(--font-mono); background: var(--bg-alt); padding: var(--space-3); border-radius: var(--radius); overflow-x: auto; }
hr  { border: none; border-top: 1px solid var(--border); margin: var(--space-6) 0; }

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

/* ---- Top navigation + Footer come from nav-block.css (imported above).
   The .site-nav and .site-footer rules live there so they can be used
   on pages that don't want the full site.css. ---------------------------- */

/* ---- Buttons + CTA cards (used by landing) ---------------------------- */
.btn {
  display: inline-block;
  font: inherit;
  font-weight: 500;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease;
}
.btn:hover { background: var(--bg-alt); text-decoration: none; }
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-hover); color: #fff; }

/* Card grid for landing-page CTAs */
.card-grid {
  display: grid;
  gap: var(--space-4);
  margin: var(--space-6) 0;
}
@media (min-width: 600px) { .card-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 960px) { .card-grid { grid-template-columns: repeat(3, 1fr); } }

.card {
  display: block;
  padding: var(--space-5);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: inherit;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.card:hover {
  text-decoration: none;
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}
.card-icon { font-family: var(--font-nayana); font-feature-settings: "ss01" on, "liga" on; font-size: 36px; line-height: 1; margin-bottom: var(--space-2); color: var(--accent); }
.card h3 { margin: 0 0 var(--space-2); font-size: 18px; }
.card p { color: var(--text-muted); margin: 0; font-size: 14px; }

/* ---- Hero (used by landing) ------------------------------------------ */
.hero {
  padding: var(--space-7) 0 var(--space-6);
  text-align: center;
}
@media (min-width: 720px) {
  .hero { padding: var(--space-8) 0 var(--space-7); }
}
.hero h1 {
  margin: 0 0 var(--space-3);
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
@media (min-width: 720px) { .hero h1 { font-size: 48px; } }
.hero-tagline {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 580px;
  margin: 0 auto var(--space-5);
}
@media (min-width: 720px) { .hero-tagline { font-size: 22px; } }
.hero-actions {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
}

/* ---- Notice box (banners, callouts) ---------------------------------- */
.notice {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius);
  background: var(--accent-bg);
  border-left: 3px solid var(--accent);
  margin: var(--space-4) 0;
  font-size: 14px;
}
.notice-warn {
  background: #fff8e8;
  border-left-color: var(--warn);
}

/* ---- Nayana-text helper ---------------------------------------------- */
.nayana-text {
  font-family: var(--font-nayana);
  font-feature-settings: "ss01" on, "liga" on;
}

/* ---- TTS play button (small inline 🔊) ------------------------------- */
.tts-btn {
  display: inline-block;
  background: transparent;
  border: 0;
  padding: 0 4px;
  margin-left: 6px;
  cursor: pointer;
  font-size: 0.65em;
  opacity: 0.45;
  vertical-align: middle;
  line-height: 1;
  transition: opacity 0.15s, transform 0.1s;
  user-select: none;
}
.tts-btn:hover  { opacity: 1; }
.tts-btn:active { transform: scale(0.92); }
.tts-btn.tts-playing {
  opacity: 1;
  animation: tts-pulse 0.7s ease-in-out infinite;
}
@keyframes tts-pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.18); }
}

/* ---- Skip-link for keyboard navigation ------------------------------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  padding: 8px 16px;
  background: var(--text);
  color: #fff;
  border-radius: var(--radius);
  z-index: 200;
}
.skip-link:focus { left: 8px; color: #fff; }