/* ═══════════════════════════════════════════════════════════════════════
   WEB HARMONIUM — shared content-page stylesheet
   Wood cabinet + iOS liquid-glass, matched to the homepage app theme.
   Governs every content page: guide/*, about, privacy, terms.
   Header & footer here are the single source of truth (markup lives in
   guide/build-components.js). Sections: tokens · base · header · hero ·
   content · callouts · cards · sidebar · footer · root-page components ·
   responsive.
   ═══════════════════════════════════════════════════════════════════════ */

/* ── Tokens ─────────────────────────────────────────────────────────── */
:root {
  /* rosewood cabinet */
  --wood-950: #190c04;
  --wood-900: #241108;
  --wood-800: #33190b;
  --wood-700: #45230f;
  --wood-600: #5a3015;
  --wood-500: #6f3d1c;

  /* liquid glass */
  --glass-bg: rgba(255, 244, 228, 0.05);
  --glass-bg-strong: rgba(255, 244, 228, 0.09);
  --glass-border: rgba(255, 236, 205, 0.28);
  --glass-border-bright: rgba(255, 242, 218, 0.55);
  --glass-highlight: rgba(255, 255, 255, 0.38);
  --glass-blur: blur(24px) saturate(170%);

  /* brass / amber accents */
  --gold: #e8b45a;
  --gold-bright: #ffd88a;
  --gold-deep: #b57e2c;
  --ember: #ff9d3c;

  /* legacy aliases kept so existing markup + inline styles still resolve */
  --primary: #e8b45a;
  --primary-glow: rgba(232, 180, 90, 0.30);
  --primary-soft: rgba(232, 180, 90, 0.12);
  --bg: #1d0d05;
  --surface: #241108;
  --card: rgba(255, 244, 228, 0.05);
  --border: rgba(255, 236, 205, 0.28);
  --border-hover: rgba(255, 242, 218, 0.55);
  --text: #f6ecda;
  --text-muted: #d4c0a0;
  --text-dim: #a8916e;

  --radius: 18px;
  --radius-sm: 12px;
  --radius-pill: 999px;
  --shadow: 0 8px 28px rgba(12, 4, 0, 0.42);
  --shadow-lg: 0 16px 46px rgba(12, 4, 0, 0.5);

  /* wood grain (inline SVG fractal noise — self-contained, offline-safe) */
  --grain-soft: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='900' height='420'><filter id='g'><feTurbulence type='fractalNoise' baseFrequency='0.006 0.045' numOctaves='5' seed='7' stitchTiles='stitch'/><feColorMatrix type='saturate' values='0'/></filter><rect width='900' height='420' filter='url(%23g)' opacity='0.4'/></svg>");
}

/* ── Base ───────────────────────────────────────────────────────────── */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI', Roboto, sans-serif;
  font-size: 15.5px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  /* polished rosewood: warm top light → grain → deep base */
  background-color: var(--wood-800);
  background-image:
    radial-gradient(120% 65% at 50% -8%, rgba(255, 187, 110, 0.14) 0%, rgba(255, 187, 110, 0) 55%),
    var(--grain-soft),
    linear-gradient(180deg, #3f2210 0%, #2a1409 48%, #1a0c04 100%);
  background-blend-mode: normal, soft-light, normal;
  background-attachment: fixed;
}

a { color: var(--gold); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--gold-bright); }

:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

/* ── Header (professional liquid-glass, sticky) ─────────────────────── */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  height: 60px;
  padding: 0 clamp(14px, 4vw, 30px);
  background: linear-gradient(180deg, rgba(45, 24, 11, 0.72), rgba(30, 15, 7, 0.62));
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: inset 0 1px 0 var(--glass-highlight), 0 6px 24px rgba(12, 4, 0, 0.35);
}

.header-title {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  white-space: nowrap;
  /* engraved brass lettering */
  background: linear-gradient(180deg, #ffe3a3 0%, var(--gold) 55%, var(--gold-deep) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.55));
}
.header-title i { font-size: 15px; -webkit-text-fill-color: var(--gold); }

.header-nav { display: flex; gap: 4px; align-items: center; }
.header-nav a {
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .6px;
  text-transform: uppercase;
  padding: 7px 13px;
  border-radius: var(--radius-pill);
  transition: color .2s ease, background .2s ease;
}
.header-nav a:hover { color: var(--gold-bright); background: rgba(255, 244, 228, 0.07); }
.header-nav a.active { color: var(--gold-bright); background: var(--primary-soft); }

/* Launch CTA pill in the header */
.header-nav a.header-cta {
  color: #2a1409;
  background: linear-gradient(180deg, var(--gold-bright), var(--gold));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5), 0 3px 10px rgba(232, 180, 90, 0.3);
}
.header-nav a.header-cta:hover {
  color: #2a1409;
  background: linear-gradient(180deg, #ffe6b0, var(--gold-bright));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6), 0 0 16px rgba(255, 157, 60, 0.4);
}

/* ── Hero ───────────────────────────────────────────────────────────── */
.hero-wrap {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--glass-border);
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(255, 157, 60, 0.12) 0%, transparent 60%),
    linear-gradient(180deg, rgba(255, 244, 228, 0.03) 0%, transparent 100%);
}
.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 58px 24px 50px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.hero-text h1 {
  margin: 0 0 14px;
  font-size: clamp(28px, 4.5vw, 44px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.5px;
  color: var(--text);
}
.hero-text h1 span { color: var(--gold); }
.hero-text > p {
  margin: 0 0 24px;
  max-width: 480px;
  font-size: 17px;
  line-height: 1.55;
  color: var(--text-muted);
}

.rating-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 20px;
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--gold-bright);
  border-radius: var(--radius-pill);
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: inset 0 1px 0 var(--glass-highlight);
}
.rating-pill i { color: var(--gold); }
.rating-pill .stars { color: var(--gold-bright); letter-spacing: 1px; }

/* small gold "NEW" tag used next to headings/links for new features */
.new-badge {
  display: inline-block;
  margin-left: 4px;
  padding: 1px 7px;
  font-size: 0.7em;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--gold-bright);
  border: 1px solid var(--glass-border-bright);
  border-radius: var(--radius-pill);
  background: var(--glass-bg-strong);
  vertical-align: middle;
}

.hero-cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .3px;
  cursor: pointer;
  color: #2a1409;
  border: none;
  border-radius: var(--radius-pill);
  background: linear-gradient(180deg, var(--gold-bright), var(--gold));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5), 0 6px 22px rgba(232, 180, 90, 0.32);
  transition: transform .25s ease, box-shadow .25s ease;
}
.btn-primary:hover {
  transform: translateY(-2px);
  color: #2a1409;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6), 0 10px 30px rgba(255, 157, 60, 0.4);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  color: var(--text-warm, var(--text));
  border-radius: var(--radius-pill);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  transition: border-color .25s ease, background .25s ease;
}
.btn-ghost:hover { border-color: var(--glass-border-bright); background: var(--glass-bg-strong); color: var(--gold-bright); }

.hero-img-wrap {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  box-shadow: var(--shadow-lg);
}
.hero-img-wrap::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(255, 216, 138, 0.4), transparent 50%, rgba(232, 180, 90, 0.12));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.hero-img-wrap img { display: block; width: 100%; height: auto; }
.hero-badge {
  position: absolute;
  bottom: 14px;
  left: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  border-radius: var(--radius-sm);
  background: rgba(25, 12, 4, 0.6);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
}
.hero-badge i { color: var(--gold); font-size: 11px; }

/* ── Content ────────────────────────────────────────────────────────── */
.container { max-width: 860px; margin: 0 auto; padding: 40px 22px 70px; }

.breadcrumbs {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 28px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-dim);
}
.breadcrumbs a { color: var(--text-dim); }
.breadcrumbs a:hover { color: var(--gold); }
.breadcrumbs i { font-size: 9px; color: var(--text-dim); }

h1 { color: var(--text); }
h2 {
  position: relative;
  margin-top: 44px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -.3px;
  color: var(--text);
}
h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 42px;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--gold), transparent);
}
h3 { margin-top: 32px; margin-bottom: 10px; font-size: 20px; font-weight: 600; color: var(--gold-bright); }
h4 { margin-top: 20px; margin-bottom: 8px; font-size: 16px; font-weight: 600; color: #ecd9b6; }
p { margin: 0 0 14px; color: #e2d3ba; }

.lead { margin-bottom: 28px; font-size: 17.5px; line-height: 1.6; font-weight: 400; color: #ecdcc2; }
.lead strong { color: var(--text); font-weight: 600; }

ul, ol { color: #e2d3ba; }
ul li, ol li { margin-bottom: 8px; }

/* callout cards */
.card {
  margin: 18px 0;
  padding: 22px;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: inset 0 1px 0 var(--glass-highlight);
  transition: border-color .3s ease, transform .3s ease;
}
.card:hover { border-color: var(--glass-border-bright); transform: translateY(-1px); }
.card-accent {
  background:
    radial-gradient(120% 90% at 15% 0%, rgba(255, 216, 138, 0.12) 0%, transparent 50%),
    linear-gradient(135deg, rgba(255, 157, 60, 0.07), rgba(255, 157, 60, 0.02));
  border: 1px solid rgba(255, 216, 138, 0.22);
}

.key-takeaway {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin: 24px 0;
  padding: 20px 22px;
  border-radius: var(--radius-sm);
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(255, 216, 138, 0.10) 0%, transparent 55%),
    linear-gradient(135deg, rgba(255, 157, 60, 0.06), rgba(255, 157, 60, 0.02));
  border: 1px solid rgba(255, 216, 138, 0.2);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
}
.key-takeaway i { flex-shrink: 0; margin-top: 2px; font-size: 18px; color: var(--gold); }
.key-takeaway div { flex: 1; }
.key-takeaway strong { display: block; margin-bottom: 4px; font-size: 14px; font-weight: 600; color: var(--gold-bright); }
.key-takeaway p { margin: 0; font-size: 14.5px; line-height: 1.55; color: #e2d3ba; }

.step-list { counter-reset: step; list-style: none; padding: 0; margin: 20px 0; }
.step-list li { position: relative; margin-bottom: 22px; padding-left: 58px; min-height: 38px; }
.step-list li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  font-weight: 700;
  font-size: 14px;
  color: #2a1409;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--gold-bright), var(--gold-deep));
  box-shadow: 0 4px 12px rgba(232, 180, 90, 0.28);
}

/* tables */
table {
  width: 100%;
  margin: 18px 0;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
}
th, td { padding: 12px 16px; text-align: left; font-size: 14px; }
th {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .8px;
  text-transform: uppercase;
  color: var(--gold-bright);
  background: linear-gradient(180deg, rgba(255, 216, 138, 0.10), rgba(255, 216, 138, 0.03));
}
tr:not(:last-child) td { border-bottom: 1px solid var(--glass-border); }
td { color: #e2d3ba; }
tr:hover td { background: rgba(255, 244, 228, 0.03); }

code {
  padding: 3px 8px;
  font-family: 'SF Mono', Consolas, monospace;
  font-size: 13px;
  color: var(--gold-bright);
  background: rgba(255, 216, 138, 0.10);
  border: 1px solid rgba(255, 216, 138, 0.16);
  border-radius: 5px;
}
kbd {
  padding: 3px 8px;
  font-family: 'SF Mono', Consolas, monospace;
  font-size: 12px;
  color: var(--text);
  background: rgba(25, 12, 4, 0.6);
  border: 1px solid var(--glass-border);
  border-radius: 5px;
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.3);
}

/* FAQ */
.faq-item {
  margin-bottom: 12px;
  padding: 20px 22px;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  transition: border-color .25s ease;
}
.faq-item:hover { border-color: var(--glass-border-bright); }
.faq-item h4 { display: flex; align-items: center; gap: 8px; margin: 0 0 8px; font-size: 15px; font-weight: 600; color: var(--gold-bright); }
.faq-item h4 i { font-size: 12px; opacity: .8; color: var(--gold); }
.faq-item p { margin: 0; font-size: 14.5px; line-height: 1.6; color: #d9c9af; }

/* legacy rating widget (kept harmless; used by a few hub pages) */
.rating-widget {
  position: relative;
  overflow: hidden;
  margin: 36px 0;
  padding: 28px;
  text-align: center;
  border-radius: var(--radius);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
}
.rating-widget .score { position: relative; margin-bottom: 4px; font-size: 22px; font-weight: 800; color: var(--text); }
.rating-widget .reviews { position: relative; margin-bottom: 16px; font-size: 13px; color: var(--text-muted); }
.rating-widget .quote { position: relative; max-width: 500px; margin: 0 auto 18px; font-style: italic; font-size: 15px; line-height: 1.55; color: #d9c9af; }
.rating-widget .quote::before { content: '"'; margin-right: 4px; font-size: 24px; font-weight: 700; color: var(--gold); }

.cta-box {
  position: relative;
  overflow: hidden;
  margin: 40px 0;
  padding: 32px;
  text-align: center;
  border-radius: var(--radius);
  background:
    radial-gradient(120% 90% at 50% 0%, rgba(255, 216, 138, 0.10) 0%, transparent 55%),
    linear-gradient(135deg, rgba(255, 157, 60, 0.07), rgba(255, 157, 60, 0.02));
  border: 1px solid rgba(255, 216, 138, 0.2);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
}
.cta-box h3 { margin-top: 0; font-size: 22px; font-weight: 700; color: var(--text); }
.cta-box p { margin-bottom: 20px; color: var(--text-muted); }

.related-links { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 14px; margin-top: 28px; }
.related-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  transition: border-color .3s ease, transform .3s ease, box-shadow .3s ease;
}
.related-card:hover { border-color: var(--glass-border-bright); transform: translateY(-3px); box-shadow: var(--shadow); }
.related-card .rc-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-bottom: 4px;
  font-size: 14px;
  color: var(--gold);
  border-radius: 10px;
  background: rgba(255, 216, 138, 0.10);
  border: 1px solid rgba(255, 216, 138, 0.16);
}
.related-card h4 { margin: 0; font-size: 15px; font-weight: 600; color: var(--text); }
.related-card p { margin: 0; font-size: 13px; line-height: 1.5; color: var(--text-muted); }

.author-box {
  display: flex;
  gap: 14px;
  align-items: center;
  margin-top: 44px;
  padding: 18px 22px;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
}
.author-box img { width: 48px; height: 48px; border-radius: 50%; border: 2px solid var(--glass-border); background: rgba(25, 12, 4, 0.5); }
.author-box div { flex: 1; }
.author-box strong { font-size: 14px; font-weight: 600; color: var(--text); }
.author-box span { font-size: 13px; line-height: 1.5; color: var(--text-muted); }

/* ── Guide sidebar + layout ─────────────────────────────────────────── */
.guide-layout { display: grid; grid-template-columns: 220px 1fr; gap: 32px; max-width: 1100px; margin: 0 auto; padding: 40px 22px 70px; }
.guide-sidebar {
  position: sticky;
  top: 76px;
  width: 220px;
  height: fit-content;
  margin-bottom: 24px;
  padding: 16px;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: inset 0 1px 0 var(--glass-highlight);
}
.sidebar-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .8px;
  text-transform: uppercase;
  color: var(--gold-bright);
  border-bottom: 1px solid var(--glass-border);
}
.sidebar-nav { display: flex; flex-direction: column; gap: 2px; }
.sidebar-link { display: flex; align-items: center; gap: 10px; padding: 8px 10px; font-size: 13px; color: var(--text-muted); border-radius: 8px; transition: background .2s, color .2s; }
.sidebar-link:hover { background: rgba(255, 244, 228, 0.05); color: var(--text); }
.sidebar-link.active { background: var(--primary-soft); color: var(--gold-bright); font-weight: 500; }
.sl-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-dim);
  background: rgba(25, 12, 4, 0.5);
  border-radius: 5px;
}
.sidebar-link.active .sl-num { color: #2a1409; background: var(--gold); }
.sidebar-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 12px;
  padding: 11px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .5px;
  text-transform: uppercase;
  color: #2a1409;
  border-radius: 10px;
  background: linear-gradient(180deg, var(--gold-bright), var(--gold));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5), 0 4px 14px rgba(232, 180, 90, 0.28);
}
.sidebar-cta:hover { color: #2a1409; box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6), 0 0 18px rgba(255, 157, 60, 0.4); }

/* ── Footer (professional) ──────────────────────────────────────────── */
.footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 26px;
  max-width: 1000px;
  margin: 0 auto;
  padding: 44px 22px 34px;
  border-top: 1px solid var(--glass-border);
}
.footer-col h5 {
  margin: 0 0 12px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .8px;
  text-transform: uppercase;
  color: var(--gold-bright);
}
.footer-col a { display: block; padding: 5px 0; font-size: 13px; color: var(--text-muted); transition: color .2s, padding-left .2s; }
.footer-col a:hover { color: var(--gold-bright); padding-left: 3px; }

.site-footer {
  padding: 30px 22px 40px;
  text-align: center;
  color: var(--text-dim);
  font-size: 12.5px;
  border-top: 1px solid var(--glass-border);
  background: rgba(20, 10, 4, 0.4);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  background: linear-gradient(180deg, #ffe3a3, var(--gold) 60%, var(--gold-deep));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.footer-brand i { -webkit-text-fill-color: var(--gold); }
.footer-tagline { max-width: 460px; margin: 0 auto 16px; font-size: 13px; line-height: 1.5; color: var(--text-muted); }
.footer-social { display: flex; justify-content: center; gap: 12px; margin-bottom: 18px; }
.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  font-size: 15px;
  color: var(--gold);
  border-radius: 50%;
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  transition: transform .2s, border-color .2s, color .2s;
}
.footer-social a:hover { transform: translateY(-2px); color: var(--gold-bright); border-color: var(--glass-border-bright); }
.footer-bottom-links { margin-bottom: 12px; font-size: 13px; }
.footer-bottom-links a { color: var(--text-muted); }
.footer-bottom-links a:hover { color: var(--gold-bright); }
.site-footer p { margin: 0; color: var(--text-dim); }
.site-footer a { color: var(--text-muted); }
.site-footer a:hover { color: var(--gold-bright); }

/* ═══ Root-page components (about / privacy / terms) ═════════════════ */
.subtitle { margin: 0 auto 44px; max-width: 640px; text-align: center; font-size: 18px; color: var(--text-muted); }

.section {
  margin-bottom: 34px;
  padding: 32px;
  border-radius: var(--radius);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: inset 0 1px 0 var(--glass-highlight);
}
.section h2 { margin-top: 0; }
.section:hover { border-color: var(--glass-border-bright); }

.last-updated { margin-bottom: 44px; text-align: center; font-style: italic; font-size: 15px; color: var(--text-dim); }

/* about — author card */
.author-card {
  display: flex;
  gap: 28px;
  align-items: center;
  margin: 30px 0;
  padding: 28px;
  border-radius: var(--radius);
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
}
.author-avatar {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  width: 108px;
  height: 108px;
  font-size: 44px;
  font-weight: bold;
  color: #2a1409;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--gold-bright), var(--gold-deep));
  box-shadow: 0 6px 20px rgba(232, 180, 90, 0.3);
}
.author-info h3 { margin: 0 0 8px; color: var(--gold-bright); }
.author-role { margin-bottom: 14px; font-style: italic; color: var(--text-muted); }
.social-links { display: flex; flex-wrap: wrap; gap: 12px; }
.social-links a {
  padding: 8px 16px;
  font-size: 13px;
  color: var(--gold-bright);
  border-radius: var(--radius-pill);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  transition: background .25s, border-color .25s;
}
.social-links a:hover { background: var(--glass-bg-strong); border-color: var(--glass-border-bright); }

/* about — feature grid */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 22px; margin-top: 30px; }
.feature-box {
  padding: 26px;
  text-align: center;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  transition: border-color .3s, transform .3s;
}
.feature-box:hover { border-color: var(--glass-border-bright); transform: translateY(-3px); }
.feature-icon { display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.feature-icon svg, .feature-icon i { color: var(--gold); font-size: 26px; }
.feature-box h4 { margin-top: 0; margin-bottom: 10px; color: var(--gold-bright); }
.feature-box p { margin: 0; font-size: 14px; }

/* privacy / terms — callout boxes */
.privacy-highlight, .terms-summary {
  margin-bottom: 40px;
  padding: 28px 30px;
  text-align: center;
  border-radius: var(--radius);
  background:
    radial-gradient(120% 90% at 50% 0%, rgba(255, 216, 138, 0.12) 0%, transparent 55%),
    linear-gradient(135deg, rgba(255, 157, 60, 0.08), rgba(255, 157, 60, 0.02));
  border: 1px solid rgba(255, 216, 138, 0.28);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
}
.privacy-highlight h2, .terms-summary h2 { margin-top: 0; border: none; }
.privacy-highlight h2::after, .terms-summary h2::after { display: none; }

.highlight-box {
  margin: 25px 0;
  padding: 20px 22px;
  border-left: 4px solid var(--gold);
  border-radius: 0 8px 8px 0;
  background: rgba(255, 216, 138, 0.08);
}
.highlight-box p { margin: 0; }

.warning-box {
  margin: 25px 0;
  padding: 20px 22px;
  border-left: 4px solid var(--ember);
  border-radius: 0 8px 8px 0;
  background: rgba(255, 157, 60, 0.10);
}
.warning-box p { margin: 0; }

.license-box {
  margin: 25px 0;
  padding: 26px;
  border-radius: var(--radius-sm);
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
}
.license-box h3 { margin-top: 0; color: var(--gold-bright); }

.contact-info {
  margin: 25px 0;
  padding: 26px;
  border-radius: var(--radius-sm);
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
}
.contact-info h3 { margin-top: 0; color: var(--gold-bright); }

/* ═══ Hub-page components (sargam chart, thaat cards, keyboard map, etc.) ══
   Ported from the old per-page inline styles so the shared sheet is the single
   source of truth and these pages inherit the wood + glass theme. */
.swar-box { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 14px; margin: 22px 0; }
.swar-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 18px 14px;
  text-align: center;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  transition: border-color .25s ease, transform .25s ease;
}
.swar-card:hover { border-color: var(--glass-border-bright); transform: translateY(-3px); }
.sname { font-size: 26px; font-weight: 800; line-height: 1; color: var(--gold); }
.en { font-size: 12px; font-weight: 600; letter-spacing: .6px; text-transform: uppercase; color: var(--gold-bright); }
.note { font-size: 12px; line-height: 1.4; color: var(--text-muted); }

.thaat-card {
  margin-bottom: 18px;
  padding: 20px;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  transition: border-color .3s ease, transform .3s ease;
}
.thaat-card:hover { border-color: var(--glass-border-bright); transform: translateX(2px); }
.thaat-card h4 { margin: 0 0 6px; font-size: 16px; font-weight: 700; color: var(--gold-bright); }
.thaat-card .notes {
  display: inline-block;
  margin-bottom: 8px;
  padding: 6px 12px;
  font-family: 'JetBrains Mono', 'SF Mono', Consolas, monospace;
  font-size: 14px;
  color: var(--text);
  background: rgba(255, 244, 228, 0.06);
  border: 1px solid var(--glass-border);
  border-radius: 6px;
}
.thaat-card p { margin: 0 0 8px; font-size: 14.5px; color: #e2d3ba; }
.thaat-card .mood { font-size: 13px; font-style: italic; color: var(--text-muted); }

/* dark wood panels: ASCII diagrams, exercises, notation, install steps */
.ascii-container {
  margin: 18px 0;
  padding: 16px;
  overflow-x: auto;
  font-family: 'JetBrains Mono', 'SF Mono', Consolas, monospace;
  font-size: 12px;
  line-height: 1.4;
  color: #e6d4b5;
  background: rgba(15, 7, 3, 0.55);
  border: 1px dashed var(--glass-border);
  border-radius: var(--radius-sm);
}
.exercise-box, .notation-guide, .install-step {
  margin: 18px 0;
  padding: 18px;
  border-left: 4px solid var(--gold);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(255, 216, 138, 0.07);
}
.notation-table td { font-family: 'JetBrains Mono', 'SF Mono', Consolas, monospace; }
.mapping-key {
  display: inline-block;
  margin: 4px;
  padding: 8px 12px;
  font-family: 'JetBrains Mono', 'SF Mono', Consolas, monospace;
  font-size: 14px;
  color: var(--gold-bright);
  background: rgba(15, 7, 3, 0.5);
  border: 1px solid rgba(232, 180, 90, 0.35);
  border-radius: 6px;
}
.stars-big { position: relative; margin-bottom: 8px; font-size: 22px; letter-spacing: 3px; color: var(--gold-bright); }

/* ── Responsive ─────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .guide-layout { grid-template-columns: 1fr; }
  .guide-sidebar { position: relative; top: 0; width: 100%; }
}
@media (max-width: 800px) {
  .hero-inner { grid-template-columns: 1fr; padding: 40px 22px 36px; }
  .hero-img-wrap { order: -1; max-width: 420px; margin: 0 auto; }
  .hero-text { text-align: center; }
  .hero-text > p { margin-left: auto; margin-right: auto; }
  .hero-cta-row { justify-content: center; }
  .author-card { flex-direction: column; text-align: center; }
  .social-links { justify-content: center; }
}
@media (max-width: 560px) {
  .app-header { height: 54px; padding: 0 12px; gap: 8px; }
  .header-title { font-size: 12.5px; letter-spacing: 1.2px; }
  .header-title .htxt { display: none; }
  .header-nav { gap: 2px; }
  .header-nav a { padding: 6px 9px; font-size: 11px; letter-spacing: .3px; }
  .hero-text h1 { font-size: 26px; }
  .container { padding: 28px 16px 50px; }
  .section { padding: 22px 18px; }
  .step-list li { padding-left: 48px; }
  .step-list li::before { width: 32px; height: 32px; font-size: 13px; }
  .cta-box, .rating-widget { padding: 22px 18px; }
  th, td { padding: 10px 12px; font-size: 13px; }
}
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto; }
  .btn-primary:hover, .feature-box:hover, .related-card:hover, .footer-social a:hover { transform: none; }
}

/* graceful fallback where backdrop-filter is unsupported */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .app-header, .card, .key-takeaway, .faq-item, table, .section, .guide-sidebar,
  .site-footer, .feature-box, .author-card, .rating-pill, .btn-ghost, .hero-badge {
    background-color: rgba(38, 20, 9, 0.9);
  }
}

/* ── App identity card (privacy / terms / about) ────────────────────── */
.app-identity {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px 28px;
  margin: 18px 0 4px;
}
.app-identity div dt {
  font-size: 12px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 3px;
}
.app-identity div dd {
  margin: 0;
  font-weight: 600;
  color: var(--text);
  overflow-wrap: anywhere;
}
@media (max-width: 520px) { .app-identity { grid-template-columns: 1fr; } }