/* ============================================================
   Sanatana Grantha site-wide styles: header / nav / landing /
   placeholder. Single clean theme, no dark/light toggle.
   Section-specific styles live in each section's own folder.
   ============================================================ */

:root {
  --bg: #faf7f2;
  --surface: #ffffff;
  --glass: rgba(255, 255, 255, 0.55);
  --glass-hover: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.65);
  --border: #e8e1d3;
  --ink: #241c12;
  --ink-soft: #6f6252;
  --accent: #c2410c;
  --accent-strong: #9a3412;
  --accent-soft: #fdece0;

  --header-bg: rgba(250, 247, 242, 0.72);
  --header-border: rgba(255, 255, 255, 0.5);
  --scrim: rgba(36, 28, 18, 0.4);
  --search-panel-bg: rgba(255, 255, 255, 0.88);
  --card-shadow-rgb: 36, 28, 18;
  --card-highlight: rgba(255, 255, 255, 0.5);
  --card-highlight-hover: rgba(255, 255, 255, 0.6);
  --wash-1: rgba(194, 65, 12, 0.22);
  --wash-2: rgba(217, 119, 6, 0.2);
  --wash-3: rgba(154, 52, 18, 0.18);
  --wash-4: rgba(180, 90, 20, 0.14);
  --accent-border-hover: rgba(194, 65, 12, 0.35);
  --on-accent: #ffffff;
  --on-accent-dim: rgba(255, 255, 255, 0.8);
  --on-accent-border: rgba(255, 255, 255, 0.4);
  --verse-bg: rgba(255, 255, 255, 0.72);

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1410;
    --surface: #241d16;
    --glass: rgba(36, 29, 22, 0.6);
    --glass-hover: rgba(46, 37, 28, 0.75);
    --glass-border: rgba(255, 255, 255, 0.09);
    --border: #3a2f24;
    --ink: #f2e8da;
    --ink-soft: #b3a48e;
    --accent: #f0954f;
    --accent-strong: #ffbd85;
    --accent-soft: rgba(240, 149, 79, 0.16);

    --header-bg: rgba(26, 20, 16, 0.72);
    --header-border: rgba(255, 255, 255, 0.08);
    --scrim: rgba(0, 0, 0, 0.6);
    --search-panel-bg: rgba(30, 24, 18, 0.9);
    --card-shadow-rgb: 0, 0, 0;
    --card-highlight: rgba(255, 255, 255, 0.06);
    --card-highlight-hover: rgba(255, 255, 255, 0.1);
    --wash-1: rgba(194, 65, 12, 0.28);
    --wash-2: rgba(217, 119, 6, 0.22);
    --wash-3: rgba(154, 52, 18, 0.26);
    --wash-4: rgba(180, 90, 20, 0.18);
    --accent-border-hover: rgba(240, 149, 79, 0.4);
    --on-accent: #2a1608;
    --on-accent-dim: rgba(42, 22, 8, 0.75);
    --on-accent-border: rgba(42, 22, 8, 0.35);
    --verse-bg: rgba(36, 29, 22, 0.65);

    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-wrap: break-word;
}

/* Soft color wash behind everything so glass surfaces (backdrop-blur
   cards, the sticky header) have something to visibly refract — without
   it, blurring a flat background color is invisible. background-attachment:
   fixed keeps it steady as a depth cue while content scrolls over it. */
html, body {
  background:
    radial-gradient(ellipse 1000px 800px at 12% 8%, var(--wash-1), transparent 65%),
    radial-gradient(ellipse 900px 800px at 92% 20%, var(--wash-2), transparent 65%),
    radial-gradient(ellipse 1000px 900px at 40% 95%, var(--wash-3), transparent 65%),
    radial-gradient(ellipse 700px 700px at 75% 78%, var(--wash-4), transparent 65%),
    var(--bg);
  background-attachment: fixed;
}

/* Custom elements have no default display; without this they'd render
   inline and every layout rule below would silently no-op. */
site-header, site-footer { display: block; }

/* ---------- Noscript fallback ---------- */
/* Every page's header/nav (Web Components) and the Gita's verse content
   (rendered by engine.js) require JS — without this banner, a no-JS
   visitor would see an unexplained blank header and, on chapter pages,
   an empty content area with no indication why. */

.noscript-banner {
  text-align: center;
  padding: 14px 20px;
  font-size: 14px;
  color: var(--ink);
  background: var(--accent-soft);
  border-bottom: 1px solid var(--border);
}

/* ---------- Skip link (keyboard/screen-reader users) ---------- */

.skip-link {
  position: absolute;
  top: -48px;
  left: 8px;
  z-index: 1000;
  padding: 10px 18px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--on-accent);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: top 120ms ease;
}

.skip-link:focus {
  top: 8px;
}

/* Indic script helpers: apply the appropriate Noto face. */
.devanagari { font-family: "Noto Sans Devanagari", "Inter", sans-serif; }
.telugu     { font-family: "Noto Sans Telugu",     "Inter", sans-serif; }

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

/* ---------- Site header / nav ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--header-bg);
  border-bottom: 1px solid var(--header-border);
  box-shadow: 0 1px 24px rgba(var(--card-shadow-rgb), 0.05);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .site-header { background: var(--surface); }
}

.site-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px 10px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.header-panchangam {
  max-width: 1200px;
  margin: 0 auto;
  padding: 8px 24px 10px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 10px;
  font-size: 12px;
  color: var(--ink-soft);
  cursor: help;
}

.panchangam-label {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 11px;
  font-weight: 600;
}

.panchangam-item:not(:last-child)::after {
  content: "·";
  margin-left: 10px;
  color: var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-logo {
  width: 26px;
  height: 26px;
  color: var(--accent);
  flex-shrink: 0;
  display: block;
}

.brand-text {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.brand-mark {
  font-family: "Inter", sans-serif;
  font-size: 18px;
  letter-spacing: -0.2px;
  color: var(--ink);
  font-weight: 700;
  line-height: 1;
}

.brand-tag {
  font-size: 12px;
  color: var(--ink-soft);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
  flex-wrap: wrap;
}

.site-nav a {
  padding: 7px 14px;
  border-radius: 8px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: background 120ms ease, color 120ms ease;
}

.site-nav a:hover {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.site-nav a.active {
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 600;
}

.site-nav a.disabled {
  color: var(--border);
  cursor: not-allowed;
  pointer-events: none;
}

/* ---------- Search trigger + overlay ---------- */

.search-trigger {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-left: 6px;
  padding: 6px 10px 6px 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--ink-soft);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: border-color 120ms ease, color 120ms ease;
}

.search-trigger:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.search-trigger svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.search-trigger kbd {
  font: inherit;
  font-size: 11px;
  padding: 1px 5px;
  border-radius: 4px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--ink-soft);
}

/* ---------- Back to top ---------- */
/* Site-wide floating button (added once to <body> by components.js, not
   per page) — long chapters/sargas can run to dozens of screens, and
   this stays out of the reading column entirely (fixed, bottom-right)
   so it never disturbs the content, only fading in once there's
   somewhere to scroll back to. */

.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 40;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  background: var(--verse-bg);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  box-shadow: 0 8px 24px rgba(var(--card-shadow-rgb), 0.18);
  color: var(--accent-strong);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 200ms ease, transform 200ms ease, visibility 200ms, background 120ms ease, color 120ms ease;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover,
.back-to-top:focus-visible {
  background: var(--accent);
  color: var(--on-accent);
  border-color: var(--accent);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}

@media (max-width: 640px) {
  .back-to-top {
    right: 14px;
    bottom: 14px;
    width: 40px;
    height: 40px;
  }
}

@media print {
  .back-to-top { display: none; }
}

.search-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--scrim);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 12vh 20px 20px;
}

.search-overlay[hidden] { display: none; }

.search-panel {
  width: 100%;
  max-width: 620px;
  max-height: 70vh;
  display: flex;
  flex-direction: column;
  background: var(--search-panel-bg);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  box-shadow: 0 24px 64px rgba(var(--card-shadow-rgb), 0.25);
  overflow: hidden;
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .search-panel { background: var(--surface); }
}

.search-input-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.search-input-row svg {
  width: 18px;
  height: 18px;
  color: var(--ink-soft);
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  flex-shrink: 0;
}

.search-input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
  font-size: 16px;
  color: var(--ink);
  font-family: inherit;
}

.search-input::placeholder { color: var(--ink-soft); }

.search-results {
  overflow-y: auto;
  padding: 8px;
}

.search-result {
  display: block;
  padding: 10px 12px;
  border-radius: 10px;
  text-decoration: none;
  color: var(--ink);
}

.search-result:hover,
.search-result.active-result {
  background: var(--accent-soft);
}

.search-result-title {
  font-weight: 600;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-result-category {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
  color: var(--accent-strong);
  background: var(--accent-soft);
  padding: 1px 8px;
  border-radius: 50px;
}

.search-result.is-coming-soon .search-result-category {
  color: var(--ink-soft);
  background: var(--bg);
}

.search-result-snippet {
  font-size: 13px;
  color: var(--ink-soft);
  margin-top: 2px;
  line-height: 1.4;
}

.search-empty {
  padding: 28px 20px;
  text-align: center;
  color: var(--ink-soft);
  font-size: 14px;
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 60px;
  padding: 24px;
  text-align: center;
  font-size: 13px;
  color: var(--ink-soft);
}

.site-footer a { color: var(--ink-soft); text-decoration: underline; text-underline-offset: 2px; }
.site-footer a:hover { color: var(--accent); }

/* ---------- Landing page hero ---------- */

.landing {
  max-width: 1100px;
  margin: 0 auto;
  padding: 72px 24px 0;
}

.hero {
  text-align: center;
  padding: 0 0 56px;
}

.hero h1 {
  font-family: "Inter", sans-serif;
  font-size: 42px;
  line-height: 1.2;
  letter-spacing: -0.8px;
  margin: 0 0 16px;
  color: var(--ink);
  font-weight: 700;
}

.hero p {
  font-size: 18px;
  color: var(--ink-soft);
  margin: 0 auto;
  max-width: 620px;
  line-height: 1.65;
}

.hero .hero-mark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "Noto Sans Devanagari", "Inter", sans-serif;
  font-size: 14px;
  letter-spacing: 0.5px;
  color: var(--accent-strong);
  background: var(--accent-soft);
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 22px;
}

/* ---------- Tool cards grid ---------- */

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  padding-bottom: 60px;
}

.tool-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px;
  background: var(--glass);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  text-decoration: none;
  color: var(--ink);
  box-shadow: 0 8px 32px rgba(var(--card-shadow-rgb), 0.07), inset 0 1px 0 var(--card-highlight);
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.tool-card.available:hover {
  transform: translateY(-3px);
  background: var(--glass-hover);
  border-color: var(--accent-border-hover);
  box-shadow: 0 16px 40px rgba(var(--card-shadow-rgb), 0.13), inset 0 1px 0 var(--card-highlight-hover);
}

.tool-card.coming-soon {
  opacity: 0.6;
  cursor: not-allowed;
}

.tool-card {
  scroll-margin-top: 120px;
}

/* Brief highlight when arriving via an anchor link (e.g. a search result
   pointing at a "coming soon" card) so the jump is obvious. */
.tool-card:target {
  animation: tool-card-target-flash 1800ms ease-out;
}

@keyframes tool-card-target-flash {
  0% { box-shadow: 0 0 0 3px var(--accent), 0 8px 32px rgba(var(--card-shadow-rgb), 0.07); }
  100% { box-shadow: 0 8px 32px rgba(var(--card-shadow-rgb), 0.07), inset 0 1px 0 var(--card-highlight); }
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .tool-card { background: var(--surface); }
}

.tool-icon {
  width: 44px;
  height: 44px;
  margin-bottom: 6px;
  color: var(--accent);
  display: block;
}

.tool-card h2 {
  margin: 0;
  font-family: "Inter", sans-serif;
  font-size: 19px;
  color: var(--ink);
  font-weight: 600;
}

.tool-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-soft);
  flex: 1;
}

.tool-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
}

.tool-card.coming-soon .tool-status {
  color: var(--ink-soft);
  background: var(--bg);
  border: 1px dashed var(--border);
  padding: 3px 10px;
  border-radius: 50px;
  align-self: flex-start;
  font-weight: 500;
}

/* ---------- Generic content page (about / placeholder) ---------- */

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 60px 24px;
}

.page h1 {
  font-family: "Inter", sans-serif;
  font-size: 36px;
  letter-spacing: -0.6px;
  color: var(--ink);
  margin: 0 0 18px;
  font-weight: 700;
}

.page h2 {
  font-family: "Inter", sans-serif;
  font-size: 20px;
  color: var(--ink);
  margin-top: 36px;
  font-weight: 600;
}

.page p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page ul { line-height: 1.8; color: var(--ink-soft); }
.page a { color: var(--accent); }
.page kbd {
  font: 12px "Inter", sans-serif;
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--ink);
}

.placeholder-hero {
  text-align: center;
  padding: 70px 20px;
}

.placeholder-hero .icon {
  font-size: 48px;
  margin-bottom: 14px;
}

.placeholder-hero .badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin: 16px 0;
}

/* ---------- Responsive ---------- */

@media (max-width: 1180px) {
  .site-nav {
    flex-basis: 100%;
    margin-left: 0;
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .hero h1 { font-size: 28px; letter-spacing: -0.4px; }
  .hero p { font-size: 15px; }
  .site-header-inner { padding: 12px 16px 8px; gap: 10px; }
  .brand-tag { display: none; }
  .site-nav a { padding: 6px 10px; font-size: 13px; }
  .header-panchangam { padding: 6px 16px 8px; font-size: 11px; gap: 2px 8px; }
  .search-trigger span, .search-trigger kbd { display: none; }
  .search-trigger { padding: 7px; }
  .search-overlay { padding: 0; }
  .search-panel { max-width: 100%; max-height: 100%; height: 100%; border-radius: 0; }
  .landing { padding: 40px 16px 0; }
  .tool-card { padding: 18px; }
  .page { padding: 36px 18px; }
}

/* ---------- Print ---------- */

@media print {
  site-header, site-footer, .search-overlay, .skip-link {
    display: none !important;
  }

  html, body {
    background: #ffffff;
    color: #000000;
  }

  a {
    color: #000000;
    text-decoration: underline;
  }

  .hero-mark, .tool-status, .search-trigger {
    display: none;
  }

  .tool-card, .verse, .page {
    background: #ffffff;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border: 1px solid #ccc;
    break-inside: avoid;
  }

  .hero {
    padding: 0 0 24px;
  }

  .verse-lang-label, .chapter-eyebrow, .panchangam-label {
    color: #000000 !important;
  }
}