/* =========================================================
   ✅ CFC_FUNC_6_PREMIUM_EMO_V41.3 — Fondo glass + partículas + motivador
   ========================================================= */

body {
  margin: 0;
  padding: 0;
  font-family: 'Poppins', sans-serif;
  background: #0a0a0a;
  color: #fff;
  overflow-x: hidden;
  position: relative;
}

/* ✨ Fondo animado premium */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 20% 20%, rgba(255,215,0,0.15) 0%, transparent 60%),
              radial-gradient(circle at 80% 80%, rgba(255,215,0,0.1) 0%, transparent 70%);
  backdrop-filter: blur(6px);
  z-index: -2;
  animation: glowMove 14s ease-in-out infinite alternate;
}

@keyframes glowMove {
  0% { transform: scale(1) translate(0,0); }
  100% { transform: scale(1.05) translate(-20px,10px); }
}

/* ✨ Partículas doradas flotantes */
#particles-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
  z-index: -1;
}
.particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: rgba(255,215,0,0.6);
  border-radius: 50%;
  animation: floatUp linear infinite;
}
@keyframes floatUp {
  from { transform: translateY(0); opacity: 1; }
  to { transform: translateY(-120vh); opacity: 0; }
}

/* 🔰 Navbar */
.navbar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 36px;
  padding: 1rem 2rem;
  background: rgba(17,17,17,0.9);
  border-bottom: 1px solid #222;
  max-width: 95%;
  margin: 0 auto;
  border-radius: 0 0 12px 12px;
}
.logo {
  font-weight: 700;
  color: gold;
  font-size: 1.2rem;
}
.navbar .menu {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  justify-content: center;
}
.navbar a {
  color: #fff;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
  transition: color 0.3s ease;
}
.navbar a:hover { color: gold; }

/* ☀️ Modo claro */
[data-theme="light"] .navbar {
  background: rgba(255,255,255,0.9);
  border-bottom: 1px solid #ddd;
}
[data-theme="light"] .navbar a { color: #000; }
[data-theme="light"] .navbar a:hover { color: #c9a634; }
[data-theme="light"] .logo { color: #000; }

/* 🎛️ Main card */
main.card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 2rem;
  min-height: 80vh;
  animation: fadeInUp 1s ease-in-out;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* 🧠 Botones */
.btn-main {
  background: linear-gradient(90deg,#ffcc00,#ffea00);
  color: #000;
  border: none;
  border-radius: 8px;
  padding: 12px 28px;
  font-weight: 600;
  margin: 8px 0;
  cursor: pointer;
  transition: 0.25s ease;
  box-shadow: 0 0 12px rgba(255,215,0,0.6);
}
.btn-main:hover {
  background: #000;
  color: #ffd700;
  transform: scale(1.05);
  box-shadow: 0 0 14px rgba(255,215,0,0.6);
}

/* 🌗 Botón tema */
#theme-toggle {
  position: fixed;
  top: 16px;
  right: 64px;
  z-index: 9999;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  font-size: 1.2rem;
  cursor: pointer;
  background: #111;
  color: #ffd700;
  border: 2px solid #ffd700;
  box-shadow: 0 0 10px rgba(255,215,0,0.3);
}
#theme-toggle:hover { background: #ffd700; color: #000; }

/* ✨ Bloque motivacional rotativo */
#motivation-rotator {
  font-size: 1.05rem;
  color: #ffd700;
  font-weight: 600;
  margin-top: 16px;
  text-shadow: 0 0 8px rgba(255,215,0,0.4);
  animation: fadeIn 1s ease-in-out;
}
@keyframes fadeIn { from{opacity:0;} to{opacity:1;} }

/* ============================================================
✅ CFC_FUNC_6_2_V42 — Fondo Premium Dual + Encabezado Modular
============================================================ */
.reading-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-size: cover;
  background-position: center;
  transition: opacity .8s ease, background .6s ease;
  filter: brightness(1.05);
}

/* 🌙 Modo oscuro */
[data-theme="dark"] .reading-bg {
  background: linear-gradient(180deg, rgba(0,0,0,.80), rgba(10,10,10,.75)),
              url("../img/bg-reading-dark.jpg") center/cover no-repeat;
  filter: brightness(1.05);
}

/* ☀️ Modo claro */
[data-theme="light"] .reading-bg {
  background: linear-gradient(180deg, rgba(255,255,255,.70), rgba(235,235,235,.65)),
              url("../img/bg-reading-light.jpg") center/cover no-repeat;
  filter: brightness(0.98);
}

/* ⚙️ Encabezado modular */
.chapter-header {
  text-align: center;
  margin: 40px auto 30px;
  animation: fadeInDown 1s ease;
}
.chapter-icon {
  font-size: 2.2rem;
  filter: drop-shadow(0 0 6px rgba(255,215,0,.4));
}
.chapter-title {
  font-weight: 700;
  letter-spacing: .5px;
}
.chapter-subtitle {
  font-style: italic;
  opacity: .8;
  margin-top: 6px;
}

/* 🎨 Colores por modo */
[data-theme="dark"] .chapter-title { color:#ffd700; }
[data-theme="light"] .chapter-title { color:#c9a634; }

@keyframes fadeInDown {
  from {opacity:0; transform:translateY(-20px);}
  to   {opacity:1; transform:translateY(0);}
}

/* ============================================================
✅ CFC_FUNC_6_4_V42.2 — Identidad visual modular (20 módulos)
============================================================ */
.chapter-icon::before {
  display: inline-block;
  margin-right: 4px;
}

/* 💎 Íconos y colores por módulo */
[data-module="1"]  .chapter-icon::before { content:"💭"; color:#ffd700; }
[data-module="2"]  .chapter-icon::before { content:"⚡"; color:#ffae00; }
[data-module="3"]  .chapter-icon::before { content:"🎯"; color:#00d4ff; }
[data-module="4"]  .chapter-icon::before { content:"🧠"; color:#a5f5ff; }
[data-module="5"]  .chapter-icon::before { content:"🧘"; color:#8aff00; }
[data-module="6"]  .chapter-icon::before { content:"🌊"; color:#00c3ff; }
[data-module="7"]  .chapter-icon::before { content:"🔥"; color:#ff5e00; }
[data-module="8"]  .chapter-icon::before { content:"🌀"; color:#007bff; }
[data-module="9"]  .chapter-icon::before { content:"📈"; color:#00ff88; }
[data-module="10"] .chapter-icon::before { content:"⏳"; color:#d1a200; }
[data-module="11"] .chapter-icon::before { content:"🚀"; color:#ffcc00; }
[data-module="12"] .chapter-icon::before { content:"🎯"; color:#ffdd55; }
[data-module="13"] .chapter-icon::before { content:"🧩"; color:#66c2ff; }
[data-module="14"] .chapter-icon::before { content:"👁️"; color:#cccccc; }
[data-module="15"] .chapter-icon::before { content:"🗣️"; color:#ffb366; }
[data-module="16"] .chapter-icon::before { content:"⏰"; color:#ffd54f; }
[data-module="17"] .chapter-icon::before { content:"💎"; color:#00ffe5; }
[data-module="18"] .chapter-icon::before { content:"🕰️"; color:#e8b800; }
[data-module="19"] .chapter-icon::before { content:"🌪️"; color:#00c0ff; }
[data-module="20"] .chapter-icon::before { content:"🧬"; color:#9f79ff; }

/* 🔒 QA-SYNC */
 /* ✅ CFC_FUNC_6_5_V42 — QA Visual completado (Lectura Premium Dual + Modular) */
 /* 🧩 CFC_SYNC checkpoint: premium.min.css | Fondo dual + modular activo (V42.2 FINAL) */

/* ✨ CFC_STYLE_7_2_VIDPREMIUM */
#welcomeVideo::-webkit-media-controls-panel {
  background: rgba(0, 0, 0, 0.65);
  border-radius: 12px;
}
#welcomeVideo::-webkit-media-controls-play-button {
  filter: drop-shadow(0 0 5px gold);
}