/* ==========================================
   Bookhoard Reading Themes - 18 Themes
   Organized by Category for User Convenience
   ========================================== */
/* ==========================================
   CATEGORY 1: CLASSIC READING (6 themes)
   Time-tested, comfortable for long sessions
   ========================================== */
/* Light - Default theme */
.theme-light {
  --reader-bg: #fafafa;
  --reader-text: #1a1a1a;
  --reader-link: #0066cc;
  --reader-selection: #b3d9ff;
}
.theme-light.dark {
  --reader-bg: #1a1a1a;
  --reader-text: #e8e8e8;
  --reader-link: #60a5fa;
  --reader-selection: #1e3a8a;
}
/* Paper - Warmer, softer */
.theme-paper {
  --reader-bg: #fdfbf7;
  --reader-text: #2d2d2d;
  --reader-link: #0284c7;
  --reader-selection: #bae6fd;
}
.theme-paper.dark {
  --reader-bg: #1c1917;
  --reader-text: #ebe5dd;
  --reader-link: #38bdf8;
  --reader-selection: #0c4a6e;
}
/* Sepia - Classic e-reader */
.theme-sepia {
  --reader-bg: #f4ecd8;
  --reader-text: #4a3728;
  --reader-link: #8b4513;
  --reader-selection: #d4c4a8;
}
.theme-sepia.dark {
  --reader-bg: #2b2420;
  --reader-text: #d4c4a8;
  --reader-link: #d97706;
  --reader-selection: #451a03;
}
/* Parchment - Aged document feel */
.theme-parchment {
  --reader-bg: #f0e6d3;
  --reader-text: #5c4033;
  --reader-link: #92400e;
  --reader-selection: #e7c9a8;
}
.theme-parchment.dark {
  --reader-bg: #3d2b1f;
  --reader-text: #e8dcc8;
  --reader-link: #b45309;
  --reader-selection: #292524;
}
/* Warm - Cozy evening */
.theme-warm {
  --reader-bg: #faf8f0;
  --reader-text: #2b2b2b;
  --reader-link: #d97706;
  --reader-selection: #fef3c7;
}
.theme-warm.dark {
  --reader-bg: #2d2416;
  --reader-text: #f5e6d3;
  --reader-link: #fbbf24;
  --reader-selection: #451a03;
}
/* Candlelight - Intimate glow */
.theme-candlelight {
  --reader-bg: #fef3c7;
  --reader-text: #3d2b1f;
  --reader-link: #b45309;
  --reader-selection: #fde68a;
}
.theme-candlelight.dark {
  --reader-bg: #451a03;
  --reader-text: #fde68a;
  --reader-link: #fb923c;
  --reader-selection: #78350f;
}
/* ==========================================
   CATEGORY 2: SKY & ATMOSPHERE (4 themes)
   Open, airy, contemplative
   ========================================== */
/* Azure - Open sky */
.theme-azure {
  --reader-bg: #cedef5;
  --reader-text: #262d48;
  --reader-link: #2d53e5;
  --reader-selection: #a5b4fc;
}
.theme-azure.dark {
  --reader-bg: #282e47;
  --reader-text: #babee1;
  --reader-link: #0ea5e9;
  --reader-selection: #1e3a8a;
}
/* Sky - Clear day */
.theme-sky {
  --reader-bg: #e0f2fe;
  --reader-text: #1e3a5f;
  --reader-link: #0284c7;
  --reader-selection: #7dd3fc;
}
.theme-sky.dark {
  --reader-bg: #0c4a6e;
  --reader-text: #bae6fd;
  --reader-link: #0ea5e9;
  --reader-selection: #075985;
}
/* Arctic - Icy cool */
.theme-arctic {
  --reader-bg: #f0f9ff;
  --reader-text: #1e3a5f;
  --reader-link: #0284c7;
  --reader-selection: #bae6fd;
}
.theme-arctic.dark {
  --reader-bg: #1e293b;
  --reader-text: #bfdbfe;
  --reader-link: #38bdf8;
  --reader-selection: #0c4a6e;
}
/* Frost - Crisp winter */
.theme-frost {
  --reader-bg: #f8fafc;
  --reader-text: #334155;
  --reader-link: #38bdf8;
  --reader-selection: #e0f2fe;
}
.theme-frost.dark {
  --reader-bg: #0f172a;
  --reader-text: #e0f2fe;
  --reader-link: #7dd3fc;
  --reader-selection: #1e293b;
}
/* ==========================================
   CATEGORY 3: SUNSET & WARMTH (3 themes)
   Warm, energizing, relaxation
   ========================================== */
/* Dusk - Evening transition */
.theme-dusk {
  --reader-bg: #fef3e2;
  --reader-text: #3d2914;
  --reader-link: #ea580c;
  --reader-selection: #fed7aa;
}
.theme-dusk.dark {
  --reader-bg: #2d1f14;
  --reader-text: #f5d5b8;
  --reader-link: #fb923c;
  --reader-selection: #431407;
}
/* Sunset - Peak colors */
.theme-sunset {
  --reader-bg: #fff7ed;
  --reader-text: #4a1d1d;
  --reader-link: #f97316;
  --reader-selection: #ffedd5;
}
.theme-sunset.dark {
  --reader-bg: #431407;
  --reader-text: #fed7aa;
  --reader-link: #fb923c;
  --reader-selection: #7c2d12;
}
/* Twilight - Magical hour */
.theme-twilight {
  --reader-bg: #f5f3ff;
  --reader-text: #4c1d95;
  --reader-link: #8b5cf6;
  --reader-selection: #ddd6fe;
}
.theme-twilight.dark {
  --reader-bg: #2e1065;
  --reader-text: #ddd6fe;
  --reader-link: #a78bfa;
  --reader-selection: #4c1d95;
}
/* ==========================================
   CATEGORY 4: NATURE & EARTH (3 themes)
   Grounded, natural, calming
   ========================================== */
/* Forest - Deep woods */
.theme-forest {
  --reader-bg: #e8efe8;
  --reader-text: #1a2e1a;
  --reader-link: #15803d;
  --reader-selection: #bbf7d0;
}
.theme-forest.dark {
  --reader-bg: #1a2e1a;
  --reader-text: #c8dcc8;
  --reader-link: #22c55e;
  --reader-selection: #14532d;
}
/* Moss - Fresh spring */
.theme-moss {
  --reader-bg: #dcfce7;
  --reader-text: #14532d;
  --reader-link: #22c55e;
  --reader-selection: #86efac;
}
.theme-moss.dark {
  --reader-bg: #052e16;
  --reader-text: #86efac;
  --reader-link: #4ade80;
  --reader-selection: #064e3b;
}
/* Slate - Stone stability */
.theme-slate {
  --reader-bg: #f8fafc;
  --reader-text: #334155;
  --reader-link: #475569;
  --reader-selection: #e2e8f0;
}
.theme-slate.dark {
  --reader-bg: #1e293b;
  --reader-text: #e2e8f0;
  --reader-link: #94a3b8;
  --reader-selection: #334155;
}
/* ==========================================
   CATEGORY 5: HIGH PERFORMANCE (2 themes)
   Optimized for specific use cases
   ========================================== */
/* OLED - Battery saving, max contrast */
.theme-oled {
  --reader-bg: #ffffff;
  --reader-text: #000000;
  --reader-link: #0066cc;
  --reader-selection: #ffff00;
}
.theme-oled.dark {
  --reader-bg: #000000;
  --reader-text: #ffffff;
  --reader-link: #3b82f6;
  --reader-selection: #1e3a8a;
}
/* Solarized - Precision designed */
.theme-solarized {
  --reader-bg: #fdf6e3;
  --reader-text: #657b83;
  --reader-link: #268bd2;
  --reader-selection: #eee8d5;
}
.theme-solarized.dark {
  --reader-bg: #002b36;
  --reader-text: #839496;
  --reader-link: #268bd2;
  --reader-selection: #073642;
}
/* ==========================================
   BASE TYPOGRAPHY (applies to all themes)
   ========================================== */
html,
body {
  background-color: var(--reader-bg);
  color: var(--reader-text);
  font-family: var(--reader-font, "Literata", serif);
  font-size: var(--reader-font-size, 16px);
  line-height: var(--reader-line-height, 1.6);
  margin: var(--reader-margin, 20px);
  padding: var(--reader-margin, 20px);
}
/* Links */
a {
  color: var(--reader-link);
  text-decoration: underline;
}
/* Text selection */
::selection {
  background-color: var(--reader-selection);
}
/* Images */
img,
svg,
video {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0.5em auto;
}
/* Prevent orphans/widows */
p {
  orphans: 3;
  widows: 3;
}
/* Block quotes */
blockquote {
  margin: 1em 0;
  padding-left: 1em;
  border-left: 3px solid var(--reader-link);
  font-style: italic;
}