/* ─────────────────────────────────────────────────────────────────────────
   Divine Verses - Tattvavidyas — Core stylesheet
   Brand palette: crimson #911642 → #E24A59 gradient, gold #E6D4A1, deep #1E0E14
   ───────────────────────────────────────────────────────────────────────── */

:root {
  /* Brand-aligned light palette */
  --c-bg: #FFF8F0;
  --c-bg-elev: #FFFCF6;
  --c-bg-soft: #FBEFD9;
  --c-ink: #1E0E14;
  --c-ink-soft: #6B4A35;
  --c-ink-faint: #9A7F69;
  --c-line: rgba(145, 22, 66, 0.14);
  --c-kumkum: #911642;
  --c-kumkum-soft: #B83456;
  --c-kumkum-bright: #E24A59;
  --c-gold: #C5A55A;
  --c-gold-deep: #9C7E3D;
  --c-gold-soft: #E6D4A1;
  --c-saffron: #E24A59;
  --c-success: #4A7C2A;
  --grad-brand: linear-gradient(135deg, #E24A59 0%, #911642 100%);

  /* Typography */
  --f-sa: 'Tiro Devanagari Sanskrit', 'Noto Sans Devanagari', 'Sanskrit Text', serif;
  --f-hi: 'Noto Sans Devanagari', 'Sanskrit Text', sans-serif;
  --f-en: 'Cormorant Garamond', 'EB Garamond', Georgia, serif;
  --f-ui: 'Outfit', 'Inter', system-ui, -apple-system, sans-serif;

  /* Spacing */
  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-5: 1.5rem;
  --sp-6: 2rem;
  --sp-7: 3rem;
  --sp-8: 4rem;

  /* Radii */
  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 20px;
  --r-xl: 28px;

  /* Shadows — soft, like oil lamp glow */
  --shadow-soft: 0 1px 2px rgba(145, 22, 66, 0.05), 0 8px 24px rgba(145, 22, 66, 0.07);
  --shadow-deep: 0 4px 16px rgba(145, 22, 66, 0.12), 0 16px 48px rgba(145, 22, 66, 0.09);

  /* Motion */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --dur: 320ms;

  /* Layout */
  --max-w: 720px;
  --nav-h: calc(64px + env(safe-area-inset-bottom, 0));
}

/* Dark mode — temple sanctum at night, harmonised with brand */
[data-theme="dark"] {
  --c-bg: #1E0E14;
  --c-bg-elev: #2A1620;
  --c-bg-soft: #36192A;
  --c-ink: #E6D4A1;
  --c-ink-soft: #C4AC85;
  --c-ink-faint: #8A7560;
  --c-line: rgba(230, 212, 161, 0.18);
  --c-kumkum: #E24A59;
  --c-kumkum-soft: #ED6F7E;
  --c-kumkum-bright: #FF7A88;
  --c-gold: #E6D4A1;
  --c-gold-deep: #C5A55A;
  --c-gold-soft: #F0E2BC;
  --c-saffron: #FF8855;
  --shadow-soft: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-deep: 0 4px 16px rgba(0, 0, 0, 0.55), 0 16px 48px rgba(0, 0, 0, 0.4);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --c-bg: #1E0E14;
    --c-bg-elev: #2A1620;
    --c-bg-soft: #36192A;
    --c-ink: #E6D4A1;
    --c-ink-soft: #C4AC85;
    --c-ink-faint: #8A7560;
    --c-line: rgba(230, 212, 161, 0.18);
    --c-kumkum: #E24A59;
    --c-kumkum-soft: #ED6F7E;
    --c-kumkum-bright: #FF7A88;
    --c-gold: #E6D4A1;
    --c-gold-deep: #C5A55A;
    --c-gold-soft: #F0E2BC;
    --c-saffron: #FF8855;
  }
}

/* ─── Reset ─────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--f-en);
  font-size: 17px;
  line-height: 1.55;
  color: var(--c-ink);
  background: var(--c-bg);
  background-image:
    radial-gradient(ellipse at top, rgba(197, 165, 90, 0.08), transparent 50%),
    radial-gradient(ellipse at bottom, rgba(139, 26, 26, 0.04), transparent 60%);
  background-attachment: fixed;
  min-height: 100vh;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: none; cursor: pointer; padding: 0; }
h1, h2, h3, h4 { font-family: var(--f-en); font-weight: 600; margin: 0; }
p { margin: 0; }

/* ─── App shell ─────────────────────────────────────────────────────────── */
.app {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding-bottom: var(--nav-h);
}
.screen-root {
  flex: 1;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--sp-5) var(--sp-4) var(--sp-6);
}

/* ─── Splash ─────────────────────────────────────────────────────────────── */
.splash {
  display: none; /* invisible until JS confirms it's running */
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  gap: var(--sp-3);
}
html.js-ready .splash { display: flex; }
.splash-mark {
  position: relative;
  width: 140px;
  height: 140px;
  display: grid;
  place-items: center;
  color: var(--c-gold);
}
.splash-brand {
  width: clamp(120px, 30vw, 160px);
  height: clamp(120px, 30vw, 160px);
  display: block;
  filter: drop-shadow(0 4px 16px rgba(145, 22, 66, 0.18));
}
.splash-mandala {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  animation: rotate 60s linear infinite;
}
.splash-om {
  font-family: var(--f-sa);
  font-size: 64px;
  color: var(--c-kumkum);
}
.splash-greet {
  font-family: var(--f-sa);
  font-size: 22px;
  color: var(--c-kumkum);
  letter-spacing: 0.02em;
}
.splash-sub {
  font-family: var(--f-ui);
  font-size: 14px;
  color: var(--c-ink-faint);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
@keyframes rotate { to { transform: rotate(360deg); } }

/* ─── Screens ────────────────────────────────────────────────────────────── */
.screen {
  animation: fadeUp var(--dur) var(--ease);
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.screen-header {
  margin-bottom: var(--sp-5);
  padding-top: var(--sp-3);
}
.screen-header h2 {
  font-size: 28px;
  color: var(--c-kumkum);
  font-weight: 600;
}
.screen-sub {
  color: var(--c-ink-soft);
  font-size: 16px;
  margin-top: var(--sp-1);
}
.screen-footer {
  margin-top: var(--sp-6);
  display: flex;
  justify-content: center;
}

/* ─── Welcome ────────────────────────────────────────────────────────────── */
.welcome {
  text-align: center;
  padding-top: var(--sp-6);
}
.welcome-brand {
  width: clamp(140px, 38vw, 200px);
  height: clamp(140px, 38vw, 200px);
  display: block;
  margin: 0 auto var(--sp-5);
  filter: drop-shadow(0 6px 24px rgba(145, 22, 66, 0.18));
}
.welcome-emblem {
  position: relative;
  width: 180px;
  height: 180px;
  margin: 0 auto var(--sp-5);
  display: grid;
  place-items: center;
  color: var(--c-gold);
}
.emblem-mandala {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  animation: rotate 80s linear infinite;
}
.emblem-mandala.small { width: 100%; height: 100%; }
.emblem-om {
  font-family: var(--f-sa);
  font-size: 80px;
  color: var(--c-kumkum);
  line-height: 1;
}
.emblem-lotus {
  position: relative;
  width: 80px;
  height: 80px;
  color: var(--c-kumkum);
}
.welcome-greet {
  font-family: var(--f-sa);
  font-size: 26px;
  color: var(--c-kumkum);
  margin-bottom: var(--sp-2);
}
.welcome-tag {
  font-family: var(--f-ui);
  font-size: 13px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--c-gold-deep);
  margin-bottom: var(--sp-5);
}
.welcome-blurb {
  max-width: 480px;
  margin: 0 auto var(--sp-6);
  color: var(--c-ink-soft);
  font-size: 18px;
  line-height: 1.7;
  font-style: italic;
}

/* ─── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 14px 32px;
  border-radius: var(--r-xl);
  font-family: var(--f-ui);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background var(--dur) var(--ease);
  -webkit-tap-highlight-color: transparent;
}
.btn-primary {
  background: var(--grad-brand);
  color: #FFF8F0;
  box-shadow: var(--shadow-soft);
  /* Ensure tap target meets WCAG 44px on mobile */
  min-height: 44px;
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-deep);
}
.btn-ghost {
  background: transparent;
  color: var(--c-ink-soft);
}
.btn-ghost:hover { color: var(--c-kumkum); }
.btn-small { padding: 8px 16px; font-size: 13px; }

/* ─── Permission screen ─────────────────────────────────────────────────── */
.permission {
  text-align: center;
  padding-top: var(--sp-5);
}
.permission-emblem {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 0 auto var(--sp-5);
  display: grid;
  place-items: center;
  color: var(--c-gold);
}
.permission h2 {
  font-size: 26px;
  color: var(--c-kumkum);
  margin-bottom: var(--sp-3);
}
.permission-blurb {
  max-width: 440px;
  margin: 0 auto var(--sp-5);
  color: var(--c-ink-soft);
  font-style: italic;
  line-height: 1.6;
}
.time-picker-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-2);
  margin: var(--sp-5) 0;
}
.time-picker-row label {
  font-family: var(--f-ui);
  font-size: 14px;
  color: var(--c-ink-soft);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.time-picker-row input[type="time"] {
  font-family: var(--f-en);
  font-size: 32px;
  padding: var(--sp-3) var(--sp-5);
  background: var(--c-bg-elev);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  color: var(--c-kumkum);
  text-align: center;
}
.time-picker-row small {
  color: var(--c-ink-faint);
  font-size: 12px;
  font-family: var(--f-ui);
}
.permission-actions {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  align-items: center;
}
.permission-notice {
  max-width: 460px;
  margin: 0 auto var(--sp-4);
  padding: var(--sp-3) var(--sp-4);
  background: var(--c-bg-soft);
  border: 1px solid var(--c-gold);
  border-left: 4px solid var(--c-kumkum);
  border-radius: var(--r-md);
  font-family: var(--f-en);
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-ink);
  text-align: left;
}
.permission-notice strong {
  display: block;
  margin-bottom: 4px;
  color: var(--c-kumkum);
  font-family: var(--f-ui);
  font-size: 13px;
  letter-spacing: 0.04em;
}

/* ─── Text cards (subscription) ─────────────────────────────────────────── */
.texts-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}
.text-card {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: var(--sp-4);
  align-items: center;
  width: 100%;
  padding: var(--sp-4);
  background: var(--c-bg-elev);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  text-align: left;
  transition: all var(--dur) var(--ease);
  box-shadow: var(--shadow-soft);
}
.text-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-deep);
  border-color: var(--c-gold);
}
.text-card[data-selected="true"] {
  border-color: var(--c-kumkum);
  background: linear-gradient(135deg, var(--c-bg-elev) 0%, var(--c-bg-soft) 100%);
}
.text-card-art {
  width: 80px;
  height: 80px;
  position: relative;
  display: grid;
  place-items: center;
  color: var(--c-gold);
}
.text-art-mandala {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.text-art-glyph {
  font-family: var(--f-sa);
  font-size: 34px;
  color: var(--c-kumkum);
  line-height: 1;
}
.text-card-title {
  font-size: 19px;
  color: var(--c-ink);
  font-weight: 600;
  margin-bottom: 2px;
}
.text-card-sa {
  font-family: var(--f-sa);
  font-size: 15px;
  color: var(--c-kumkum);
  margin-bottom: var(--sp-2);
}
.text-card-desc {
  font-size: 14px;
  color: var(--c-ink-soft);
  font-style: italic;
  margin-bottom: var(--sp-1);
}
.text-card-meta {
  font-family: var(--f-ui);
  font-size: 12px;
  color: var(--c-ink-faint);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Toggle switch */
.text-card-toggle .toggle-track {
  display: inline-block;
  width: 44px;
  height: 26px;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
  border-radius: 999px;
  position: relative;
  transition: background var(--dur) var(--ease);
}
.text-card-toggle .toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: var(--c-gold);
  border-radius: 50%;
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease);
  box-shadow: 0 1px 2px rgba(0,0,0,0.15);
}
.text-card[data-selected="true"] .toggle-track {
  background: var(--c-kumkum);
}
.text-card[data-selected="true"] .toggle-thumb {
  transform: translateX(18px);
  background: #FFF8F0;
}

/* ─── Bottom navigation ─────────────────────────────────────────────────── */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--c-bg-elev);
  border-top: 1px solid var(--c-line);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  height: var(--nav-h);
  padding-bottom: env(safe-area-inset-bottom, 0);
  z-index: 100;
  box-shadow: 0 -4px 16px rgba(139, 26, 26, 0.04);
}
.nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  font-family: var(--f-ui);
  font-size: 11px;
  color: var(--c-ink-faint);
  transition: color var(--dur) var(--ease);
  letter-spacing: 0.04em;
}
.nav-btn .nav-icon {
  width: 22px;
  height: 22px;
  color: currentColor;
}
.nav-btn[aria-current="page"] {
  color: var(--c-kumkum);
}
.nav-btn[aria-current="page"] .nav-icon {
  color: var(--c-kumkum);
}
.nav-btn:hover { color: var(--c-kumkum); }

/* ─── Toast ─────────────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: calc(var(--nav-h) + var(--sp-4));
  left: 50%;
  transform: translateX(-50%);
  background: var(--c-ink);
  color: var(--c-bg);
  padding: var(--sp-3) var(--sp-5);
  border-radius: var(--r-xl);
  font-family: var(--f-ui);
  font-size: 14px;
  box-shadow: var(--shadow-deep);
  z-index: 200;
  animation: toastIn var(--dur) var(--ease);
  max-width: 90vw;
  text-align: center;
}
@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, 12px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* ─── Settings ──────────────────────────────────────────────────────────── */
.settings-group {
  background: var(--c-bg-elev);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: var(--sp-4);
  margin-bottom: var(--sp-4);
}
.settings-group h3 {
  font-family: var(--f-ui);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-gold-deep);
  margin-bottom: var(--sp-3);
}
.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-3) 0;
  border-bottom: 1px solid var(--c-line);
  font-family: var(--f-ui);
  font-size: 15px;
}
.setting-row:last-child { border-bottom: none; }
.setting-row select,
.setting-row input[type="time"] {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
  padding: var(--sp-2) var(--sp-3);
  color: var(--c-ink);
  font-family: var(--f-ui);
}
.setting-row input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--c-kumkum);
}
.setting-hint {
  margin-top: var(--sp-3);
  padding: var(--sp-3);
  background: var(--c-bg-soft);
  border-left: 3px solid var(--c-gold);
  border-radius: var(--r-sm);
  font-family: var(--f-en);
  font-style: italic;
  font-size: 14px;
  color: var(--c-ink-soft);
  line-height: 1.5;
}
[data-theme="dark"] .setting-hint {
  background: rgba(197, 165, 90, 0.06);
}
.muted { color: var(--c-ink-soft); }
.small { font-size: 13px; line-height: 1.6; }
.muted.small { font-family: var(--f-ui); margin-bottom: var(--sp-3); }

/* ─── Library ───────────────────────────────────────────────────────────── */
.lib-tabs {
  display: flex;
  gap: var(--sp-2);
  margin-bottom: var(--sp-4);
  overflow-x: auto;
  padding-bottom: var(--sp-2);
}
.lib-tab {
  font-family: var(--f-ui);
  font-size: 14px;
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--r-xl);
  background: var(--c-bg-elev);
  border: 1px solid var(--c-line);
  color: var(--c-ink-soft);
  white-space: nowrap;
  transition: all var(--dur) var(--ease);
}
.lib-tab[aria-selected="true"] {
  background: var(--c-kumkum);
  color: #FFF8F0;
  border-color: var(--c-kumkum);
}
.library-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}
.lib-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  background: var(--c-bg-elev);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  cursor: pointer;
  text-align: left;
  width: 100%;
  font-family: var(--f-en);
  transition: all var(--dur) var(--ease);
}
.lib-item:hover {
  border-color: var(--c-gold);
  transform: translateX(2px);
}
.lib-item .lib-num {
  font-family: var(--f-ui);
  font-size: 12px;
  color: var(--c-gold-deep);
  letter-spacing: 0.05em;
  min-width: 60px;
}
.lib-item .lib-preview {
  font-family: var(--f-sa);
  font-size: 14px;
  color: var(--c-ink);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lib-item[data-current="true"] {
  border-color: var(--c-kumkum);
  background: var(--c-bg-soft);
}
.lib-item[data-read="true"] .lib-num::after {
  content: ' ✓';
  color: var(--c-success);
}

/* ─── Install banner (PWA install hint) ─────────────────────────────────── */
.install-banner {
  position: fixed;
  left: 50%;
  bottom: calc(var(--nav-h) + var(--sp-3) + env(safe-area-inset-bottom, 0));
  transform: translateX(-50%);
  width: calc(100% - var(--sp-4) * 2);
  max-width: 520px;
  display: grid;
  grid-template-columns: 44px 1fr auto auto;
  gap: var(--sp-3);
  align-items: center;
  padding: var(--sp-3) var(--sp-4);
  background: var(--c-bg-elev);
  border: 1px solid var(--c-line);
  border-left: 4px solid var(--c-kumkum);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-deep);
  z-index: 150;
  animation: install-slide-up 320ms var(--ease);
}
@keyframes install-slide-up {
  from { opacity: 0; transform: translate(-50%, 12px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}
.install-banner-icon {
  width: 44px;
  height: 44px;
}
.install-banner-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.install-banner-text strong {
  font-family: var(--f-ui);
  font-size: 14px;
  color: var(--c-kumkum);
  font-weight: 600;
  letter-spacing: 0.02em;
}
.install-banner-text span {
  font-family: var(--f-en);
  font-size: 13px;
  color: var(--c-ink-soft);
  line-height: 1.4;
  font-style: italic;
}
.install-banner-dismiss {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 22px;
  line-height: 1;
  color: var(--c-ink-faint);
  background: transparent;
  border: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.install-banner-dismiss:hover { color: var(--c-kumkum); background: var(--c-bg-soft); }
@media (max-width: 420px) {
  .install-banner {
    grid-template-columns: 36px 1fr auto;
    grid-template-rows: auto auto;
    padding: var(--sp-3);
  }
  .install-banner-icon { width: 36px; height: 36px; grid-row: span 2; }
  .install-banner-dismiss { grid-column: 3; grid-row: 1; align-self: start; }
  #install-banner-cta { grid-column: 2 / 4; justify-self: stretch; }
}

/* ─── SEO content (always in DOM for crawlers; hidden for JS users) ──────
   No-JS visitors see this as the actual page content (their fallback view).
   JS users get the app — the content moves off-screen but stays indexable. */
.seo-content {
  padding: var(--sp-5);
  max-width: 720px;
  margin: 0 auto;
}
.seo-content h1 {
  font-family: var(--f-en);
  color: var(--c-kumkum);
  font-size: 28px;
  margin: 0 0 var(--sp-4);
}
.seo-content h2 {
  font-family: var(--f-en);
  color: var(--c-kumkum);
  font-size: 22px;
  margin: var(--sp-5) 0 var(--sp-2);
}
.seo-content p, .seo-content li {
  font-family: var(--f-en);
  font-size: 16px;
  line-height: 1.65;
  color: var(--c-ink);
}
.seo-content .lead { font-style: italic; font-size: 18px; color: var(--c-ink-soft); }
.seo-content em { color: var(--c-gold-deep); }
.seo-content footer { margin-top: var(--sp-6); color: var(--c-ink-faint); }
/* Once JS is running, the app shell takes over — push the SEO content
   off-screen but keep it in DOM (crawlers can still index it). */
html.js-ready .seo-content {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
  padding: 0;
}

/* ─── Utility ───────────────────────────────────────────────────────────── */
[hidden] { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* ─── Reduced motion ────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ─── Mobile fine-tuning (≤480px) ───────────────────────────────────────────
   Fixes: tighter padding, larger tap targets, smaller hero, no horizontal scroll. */
@media (max-width: 480px) {
  .screen-root {
    padding: var(--sp-4) var(--sp-3) var(--sp-5);
  }
  .screen-header h2 {
    font-size: 24px;
  }
  .welcome { padding-top: var(--sp-4); }
  .welcome-blurb {
    font-size: 16px;
    line-height: 1.65;
  }
  .welcome-greet { font-size: 22px; }
  .welcome-tag {
    font-size: 11px;
    letter-spacing: 0.18em;
  }
  .text-card {
    grid-template-columns: 64px 1fr auto;
    gap: var(--sp-3);
    padding: var(--sp-3);
  }
  .text-card-art { width: 64px; height: 64px; }
  .text-art-glyph { font-size: 28px; }
  .text-card-title { font-size: 17px; }
  .text-card-desc { font-size: 13px; }
  .text-card-meta { font-size: 11px; }
  .nav-btn { font-size: 10px; }
  .nav-btn .nav-icon { width: 20px; height: 20px; }
  .btn { padding: 12px 24px; }
  .time-picker-row input[type="time"] {
    font-size: 28px;
    padding: var(--sp-2) var(--sp-4);
  }
  .setting-row {
    flex-wrap: wrap;
    gap: var(--sp-2);
    padding: var(--sp-2) 0;
  }
  .setting-row select,
  .setting-row input[type="time"] {
    min-height: 36px;
  }
  .install-prompt span { font-size: 13px; }
}

/* Very narrow phones (iPhone SE 320px) */
@media (max-width: 360px) {
  .verse-meta {
    flex-direction: column;
    align-items: flex-start;
  }
  .text-card {
    grid-template-columns: 56px 1fr;
    grid-template-rows: auto auto;
  }
  .text-card-toggle {
    grid-column: 1 / -1;
    justify-self: end;
    margin-top: -8px;
  }
}

/* Larger phones / phablets ─ keep tap targets generous */
@media (hover: none) and (pointer: coarse) {
  .nav-btn { min-height: 44px; }
  .reveal-btn { min-height: 44px; padding: var(--sp-3) 0; }
  .action-btn { min-height: 40px; }
  .lib-tab { min-height: 36px; }
  .lib-item { min-height: 56px; }
}

/* Prevent body horizontal scroll on any device */
html, body { overflow-x: hidden; }

/* ─── Update banner (shown when a new service worker is ready) ──────────── */
.update-banner {
  position: fixed;
  left: 50%;
  bottom: calc(var(--nav-h) + var(--sp-3));
  transform: translate(-50%, calc(100% + var(--sp-5)));
  width: min(440px, calc(100vw - var(--sp-5)));
  background: var(--c-bg-elev);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  box-shadow:
    0 12px 36px rgba(0, 0, 0, 0.18),
    0 0 0 1px rgba(197, 165, 90, 0.18);
  padding: var(--sp-3) var(--sp-4);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.update-banner.is-visible {
  transform: translate(-50%, 0);
  opacity: 1;
  pointer-events: auto;
}
.update-banner__inner {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}
.update-banner__icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  filter: drop-shadow(0 0 8px rgba(197, 165, 90, 0.35));
}
.update-banner__text {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.update-banner__text strong {
  font-family: var(--f-en);
  color: var(--c-gold);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.01em;
}
.update-banner__text span {
  font-family: var(--f-ui);
  color: var(--c-ink-soft);
  font-size: 0.82rem;
  line-height: 1.35;
  margin-top: 2px;
}
.update-banner__actions {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  flex-shrink: 0;
}
.update-banner__btn {
  font-family: var(--f-ui);
  font-weight: 500;
  font-size: 0.875rem;
  padding: var(--sp-2) var(--sp-4);
  border: none;
  border-radius: var(--r-md);
  cursor: pointer;
  transition: background var(--dur) var(--ease), transform 120ms var(--ease);
}
.update-banner__btn--primary {
  background: var(--c-kumkum);
  color: #FFF8F0;
  letter-spacing: 0.02em;
}
.update-banner__btn--primary:hover { background: var(--c-kumkum-soft); }
.update-banner__btn--primary:active { transform: scale(0.97); }
.update-banner__btn--primary:disabled {
  background: var(--c-ink-faint);
  cursor: progress;
  opacity: 0.7;
}
.update-banner__dismiss {
  background: transparent;
  border: none;
  color: var(--c-ink-faint);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.875rem;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.update-banner__dismiss:hover {
  color: var(--c-ink);
  background: rgba(197, 165, 90, 0.1);
}

@media (max-width: 380px) {
  .update-banner__text span { display: none; }
  .update-banner__btn { padding: var(--sp-2) var(--sp-3); }
}

@media (prefers-reduced-motion: reduce) {
  .update-banner { transition: opacity var(--dur) ease; transform: translate(-50%, 0); }
  .update-banner:not(.is-visible) { opacity: 0; pointer-events: none; }
}

/* ─── Feedback section (in Settings) ────────────────────────────────────── */
.feedback-target {
  font-family: var(--f-ui);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-ink-faint);
  margin: var(--sp-2) 0 var(--sp-3);
}
.feedback-target strong {
  color: var(--c-gold-deep);
  font-weight: 500;
  user-select: all;
  -webkit-user-select: all;
}
.feedback-textarea {
  width: 100%;
  min-height: 96px;
  resize: vertical;
  padding: var(--sp-3);
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  color: var(--c-ink);
  font-family: var(--f-en);
  font-size: 15px;
  line-height: 1.55;
  margin-bottom: var(--sp-3);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.feedback-textarea::placeholder {
  color: var(--c-ink-faint);
  font-style: italic;
}
.feedback-textarea:focus {
  outline: none;
  border-color: var(--c-kumkum);
  box-shadow: 0 0 0 3px rgba(145, 22, 66, 0.10);
}
[data-theme="dark"] .feedback-textarea:focus {
  box-shadow: 0 0 0 3px rgba(226, 74, 89, 0.18);
}
.feedback-actions {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  align-items: stretch;
}
.feedback-actions .btn {
  width: 100%;
  text-align: center;
  text-decoration: none;
}
.feedback-actions .btn[disabled],
.feedback-actions .btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  filter: grayscale(0.3);
  pointer-events: auto; /* still receives clicks so we can prompt the user */
}
.feedback-actions .btn-primary[aria-disabled="true"]:hover {
  transform: none;
  box-shadow: var(--shadow-soft);
}
.feedback-hint {
  margin-top: var(--sp-2);
  font-style: italic;
  opacity: 0.85;
}

/* ─── Troubleshoot section (in Settings) ────────────────────────────────── */
.troubleshoot > summary {
  cursor: pointer;
  padding: var(--sp-2) 0;
  font-family: var(--f-ui);
  font-size: 14px;
  color: var(--c-gold-deep);
  list-style: none;
}
.troubleshoot > summary::-webkit-details-marker { display: none; }
.troubleshoot > summary::before {
  content: '+ ';
  font-weight: 600;
  color: var(--c-gold-deep);
}
.troubleshoot[open] > summary::before { content: '− '; }
.troubleshoot > summary:hover { color: var(--c-kumkum); }

.troubleshoot-body {
  padding: var(--sp-2) 0 0;
  border-top: 1px solid var(--c-line);
  margin-top: var(--sp-2);
}
.troubleshoot-body h4 {
  margin: var(--sp-3) 0 var(--sp-1);
  font-family: var(--f-ui);
  font-size: 13px;
  font-weight: 600;
  color: var(--c-ink);
  letter-spacing: 0.02em;
}
.troubleshoot-body h4:first-of-type { margin-top: var(--sp-2); }
.troubleshoot-body p,
.troubleshoot-body ol {
  margin: var(--sp-1) 0;
}
.troubleshoot-body ol {
  padding-left: var(--sp-4);
}
.troubleshoot-body ol li {
  margin: 4px 0;
  line-height: 1.5;
}

.oem-block {
  margin: var(--sp-2) 0;
  padding: var(--sp-2) var(--sp-3);
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
}
.oem-block > summary {
  cursor: pointer;
  font-family: var(--f-ui);
  font-size: 13px;
  list-style: none;
  padding: 2px 0;
}
.oem-block > summary::-webkit-details-marker { display: none; }
.oem-block > summary::before { content: '▸ '; opacity: 0.6; }
.oem-block[open] > summary::before { content: '▾ '; opacity: 0.6; }
.oem-block--detected {
  border-color: var(--c-gold-deep);
  background: linear-gradient(180deg, rgba(197, 170, 109, 0.08), transparent);
}
.oem-block--detected > summary::after {
  content: ' · your phone';
  font-size: 11px;
  color: var(--c-gold-deep);
  font-style: italic;
}

#troubleshoot-detected {
  padding: var(--sp-2) var(--sp-3);
  background: rgba(197, 170, 109, 0.08);
  border-left: 2px solid var(--c-gold-deep);
  border-radius: var(--r-sm);
  margin: var(--sp-1) 0 var(--sp-3);
}

/* ─── Ambient falling betel leaves (पान) ────────────────────────────────────
   A tiny layer that occasionally lets 2–3 gold leaves drift from the top of
   the viewport to the bottom. Pointer-events disabled, low opacity, paused
   when the tab is hidden, and skipped entirely under prefers-reduced-motion.
   The leaves slip behind the bottom-nav (z-index 100) as they reach the
   bottom, so they look like they fall behind the temple railings. */
.leaf-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 50;
  contain: strict;
}
.leaf-fall {
  position: absolute;
  top: -10vh;
  left: var(--leaf-x, 50%);
  will-change: transform, opacity;
  transform: translate3d(0, 0, 0);
  filter: drop-shadow(0 2px 4px rgba(30, 14, 20, 0.08));
  animation: leafFall var(--leaf-fall-dur, 12s) linear forwards;
}
.leaf-sway {
  display: block;
  will-change: transform;
  animation: leafSway var(--leaf-sway-dur, 4s) cubic-bezier(0.45, 0, 0.55, 1) infinite alternate;
  animation-delay: var(--leaf-sway-delay, 0s);
}
.leaf-spin {
  display: block;
  width: var(--leaf-size, 36px);
  height: calc(var(--leaf-size, 36px) * 1.1);
  color: var(--c-gold);
  will-change: transform;
  animation: leafSpin var(--leaf-spin-dur, 6s) cubic-bezier(0.45, 0, 0.55, 1) infinite alternate;
  animation-delay: var(--leaf-spin-delay, 0s);
}
@keyframes leafFall {
  0%   { transform: translate3d(0, 0, 0);              opacity: 0; }
  8%   {                                                opacity: var(--leaf-opacity, 0.32); }
  92%  {                                                opacity: var(--leaf-opacity, 0.32); }
  100% { transform: translate3d(0, 118vh, 0);          opacity: 0; }
}
@keyframes leafSway {
  from { transform: translate3d(calc(var(--leaf-sway-amp, 32px) * -1), 0, 0); }
  to   { transform: translate3d(var(--leaf-sway-amp, 32px), 0, 0); }
}
@keyframes leafSpin {
  from { transform: rotate(calc(var(--leaf-rot-base, 0deg) - var(--leaf-spin-amp, 22deg))); }
  to   { transform: rotate(calc(var(--leaf-rot-base, 0deg) + var(--leaf-spin-amp, 22deg))); }
}
[data-theme="dark"] .leaf-fall {
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.35));
}
@media (prefers-reduced-motion: reduce) {
  .leaf-layer { display: none !important; }
}