/* ===================================================================
   Escuela Sabática Infantil — IV Trimestre 2026
   "Aprendiendo con las Parábolas de Jesús"
   =================================================================== */

:root {
  --blue: #3fa9e0;
  --blue-dark: #1f7ab5;
  --yellow: #ffc83d;
  --orange: #ff9a3d;
  --green: #5fc77e;
  --pink: #ff8fab;
  --purple: #a06ce0;
  --bg: #fffdf7;
  --bg2: #fff6e0;
  --bg3: #eef9ff;
  --text: #2a2620;
  --text2: #4a453c;
  --text3: #7a7368;
  --border: #f0dfb0;
  --card-bg: #ffffff;
  --nav-bg: #2f7fc2;
  --nav-text: #ffffff;
  --shadow: 0 3px 18px rgba(40,100,160,.12);
  --shadow-lg: 0 10px 40px rgba(40,100,160,.22);
  --radius: 18px;
  --tr: .22s ease;
}

html.dark {
  --bg: #1b2430;
  --bg2: #22303f;
  --bg3: #1e2b36;
  --text: #f3efe2;
  --text2: #d8d2c2;
  --text3: #a39d8c;
  --border: #39485a;
  --card-bg: #243344;
  --shadow: 0 3px 18px rgba(0,0,0,.4);
  --shadow-lg: 0 10px 40px rgba(0,0,0,.6);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Comic Sans MS', 'Baloo 2', Verdana, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  transition: background var(--tr), color var(--tr);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--yellow);
  color: #2a2620;
  padding: .6rem 1rem;
  z-index: 999;
  border-radius: 0 0 10px 0;
}
.skip-link:focus { left: 0; }

h1, h2, h3 { font-family: 'Comic Sans MS', 'Baloo 2', Verdana, sans-serif; }

a { color: var(--blue-dark); }
html.dark a { color: var(--yellow); }

/* ============== HERO ============== */
.hero {
  position: relative;
  background: linear-gradient(135deg,#3fa9e0 0%,#5fc0e8 50%,#7fd4d0 100%);
  color: #ffffff;
  padding: 4.5rem 1.5rem 3.5rem;
  text-align: center;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .14;
  background-image: radial-gradient(circle, #ffffff 10px, transparent 11px);
  background-size: 60px 60px;
  pointer-events: none;
}
.hero-eyebrow {
  position: relative;
  display: inline-block;
  letter-spacing: .1em;
  text-transform: uppercase;
  font-size: .85rem;
  color: #fff4cf;
  background: rgba(0,0,0,.12);
  padding: .3rem .9rem;
  border-radius: 50px;
  margin-bottom: 1rem;
}
.hero h1 {
  position: relative;
  font-size: clamp(1.8rem, 4.5vw, 2.8rem);
  margin: .4rem auto 1rem;
  max-width: 800px;
  text-shadow: 0 3px 0 rgba(0,0,0,.08);
}
.hero-subtitle {
  position: relative;
  display: block;
  color: #fef8e8;
  font-size: 1.05rem;
  margin-bottom: 1.2rem;
}
.hero-meta {
  position: relative;
  display: flex;
  justify-content: center;
  gap: .6rem;
  font-size: 1rem;
  color: #fffbe9;
  font-weight: bold;
}
.hero-divider {
  position: relative;
  width: 90px;
  height: 5px;
  background: var(--yellow);
  margin: 1.6rem auto 0;
  border-radius: 5px;
}

/* ============== NAV ============== */
.nav {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--nav-bg);
  border-bottom: 4px solid var(--yellow);
  height: 62px;
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
}
.nav-brand {
  color: var(--nav-text);
  text-decoration: none;
  font-weight: bold;
  font-size: 1.15rem;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.3rem;
}
.nav-links a {
  color: var(--nav-text);
  text-decoration: none;
  font-size: .95rem;
  font-weight: bold;
  transition: color var(--tr);
}
.nav-links a:hover { color: var(--yellow); }
.dark-toggle {
  background: rgba(255,255,255,.15);
  border: 2px solid rgba(255,255,255,.5);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  cursor: pointer;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--tr);
}
.dark-toggle:hover { background: rgba(255,255,255,.3); }

/* ============== VERSE POPUP ============== */
.verse-cite {
  color: var(--blue-dark);
  border-bottom: 2px dashed var(--orange);
  cursor: pointer;
  font-weight: bold;
  transition: color var(--tr);
}
html.dark .verse-cite { color: var(--yellow); border-bottom-color: var(--yellow); }
.verse-cite:hover { color: var(--orange); }

.verse-popup-overlay {
  position: fixed;
  inset: 0;
  z-index: 500;
  background: rgba(30,60,90,.55);
  backdrop-filter: blur(3px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.2rem;
}
.verse-popup-overlay.active { display: flex; }
.verse-popup {
  position: relative;
  background: var(--card-bg);
  border-top: 6px solid var(--yellow);
  border-radius: var(--radius);
  max-width: 520px;
  width: 100%;
  padding: 2rem 1.8rem 1.6rem;
  box-shadow: var(--shadow-lg);
  animation: popupIn .18s ease;
}
@keyframes popupIn {
  from { transform: scale(.94) translateY(-8px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}
.verse-popup-close {
  position: absolute;
  top: .7rem;
  right: .9rem;
  background: var(--bg2);
  border: none;
  border-radius: 50%;
  width: 30px;
  height: 30px;
  font-size: 1.1rem;
  cursor: pointer;
  color: var(--text3);
}
.verse-popup-ref {
  display: block;
  font-weight: bold;
  color: var(--blue-dark);
  margin-bottom: .7rem;
  font-size: 1.1rem;
}
html.dark .verse-popup-ref { color: var(--yellow); }
.verse-popup-text {
  font-style: italic;
  color: var(--text2);
  margin: 0;
}

/* ============== MAIN / SECTIONS ============== */
.main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}
.section-header { text-align: center; margin-bottom: 1.8rem; }
.section-header h2 {
  font-size: 1.8rem;
  color: var(--blue-dark);
  margin-bottom: .3rem;
}
html.dark .section-header h2 { color: var(--yellow); }
.section-header p { color: var(--text3); margin: 0; }
.section-rule {
  width: 70px;
  height: 5px;
  background: var(--yellow);
  margin: .8rem auto 0;
  border-radius: 5px;
}

.intro-card {
  background: var(--card-bg);
  border: 3px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  margin-bottom: 3.5rem;
}
.intro-card p { margin: 0 0 1.1rem; color: var(--text2); }
.intro-card p:last-child { margin-bottom: 0; }
.intro-signature {
  margin-top: 1.4rem;
  text-align: right;
  font-style: italic;
  color: var(--text3);
}

/* ============== LESSON GRID ============== */
.lessons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px,1fr));
  gap: 1.3rem;
}
.lesson-card {
  position: relative;
  background: var(--card-bg);
  border: 3px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.4rem;
  box-shadow: var(--shadow);
  transition: transform var(--tr), border-color var(--tr);
  overflow: hidden;
}
.lesson-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--blue), var(--yellow), var(--pink));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--tr);
}
.lesson-card:hover {
  transform: translateY(-4px) rotate(-.3deg);
  border-color: var(--blue);
}
.lesson-card:hover::before { transform: scaleX(1); }
.lesson-num {
  display: inline-block;
  font-size: .82rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: #fff;
  background: var(--blue);
  padding: .2rem .7rem;
  border-radius: 50px;
  font-weight: bold;
  margin-bottom: .6rem;
}
.lesson-title {
  font-size: 1.2rem;
  margin: 0 0 .5rem;
  color: var(--text);
}
.lesson-date {
  display: block;
  font-size: .88rem;
  color: var(--text3);
  margin-bottom: 1rem;
}
.lesson-btn {
  display: inline-block;
  color: #fff;
  background: var(--orange);
  text-decoration: none;
  font-weight: bold;
  font-size: .9rem;
  padding: .5rem 1.1rem;
  border-radius: 50px;
  transition: transform var(--tr), background var(--tr);
}
.lesson-btn:hover { background: var(--blue-dark); transform: scale(1.04); }

/* ============== LESSON PAGE ============== */
.back-btn {
  color: var(--blue-dark);
  font-family: Verdana, sans-serif;
  font-weight: bold;
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  margin-bottom: 1.6rem;
  font-size: .95rem;
}
html.dark .back-btn { color: var(--yellow); }
.lesson-header { margin-bottom: 1.6rem; }
.lesson-eyebrow {
  display: block;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .82rem;
  color: #fff;
  background: var(--purple);
  display: inline-block;
  padding: .25rem .8rem;
  border-radius: 50px;
  font-weight: bold;
  margin-bottom: .7rem;
}
.lesson-page-title {
  font-size: clamp(1.6rem, 3.4vw, 2.2rem);
  margin: 0 0 1.3rem;
  color: var(--blue-dark);
}
html.dark .lesson-page-title { color: var(--yellow); }
.lesson-meta-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  background: var(--bg3);
  border: 3px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.4rem;
}
.meta-item { display: flex; flex-direction: column; gap: .3rem; }
.meta-label {
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text3);
  font-weight: bold;
}
.meta-value { color: var(--text); font-size: .97rem; }

.verse-block {
  border-left: 6px solid var(--yellow);
  background: var(--bg2);
  font-weight: bold;
  padding: 1.3rem 1.5rem;
  margin: 1.8rem 0;
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--text2);
}
.verse-block strong { font-weight: bold; }

.objective-box {
  background: var(--bg3);
  border: 3px dashed var(--blue);
  border-radius: var(--radius);
  padding: 1.3rem 1.5rem;
  margin-bottom: 1.8rem;
}
.obj-label {
  display: block;
  font-weight: bold;
  color: var(--blue-dark);
  text-transform: uppercase;
  font-size: .8rem;
  letter-spacing: .06em;
  margin-bottom: .5rem;
}
html.dark .obj-label { color: var(--yellow); }
.objective-box p { margin: 0; color: var(--text2); }

.commentary { margin-bottom: 1.8rem; }
.commentary h2 {
  font-size: 1.4rem;
  color: var(--blue-dark);
  margin-bottom: 1rem;
  display: inline-block;
}
html.dark .commentary h2 { color: var(--yellow); }
.commentary p { color: var(--text2); margin: 0 0 1.1rem; }
.commentary p:last-child { margin-bottom: 0; }

.activity-box {
  background: var(--card-bg);
  border: 3px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.8rem;
  text-align: center;
  box-shadow: var(--shadow);
}
.activity-box .act-label {
  display: inline-block;
  color: #fff;
  background: var(--green);
  font-weight: bold;
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: .3rem .9rem;
  border-radius: 50px;
  margin-bottom: 1rem;
}
.activity-box img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  border: 3px solid var(--border);
}

.dropdown-section {
  border: 3px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: .9rem;
  overflow: hidden;
  background: var(--card-bg);
}
.dropdown-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg2);
  border: none;
  padding: 1rem 1.4rem;
  font-size: 1.02rem;
  font-weight: bold;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  font-family: inherit;
}
.dd-icon { transition: transform var(--tr); color: var(--orange); font-size: 1.2rem; }
.dropdown-trigger[aria-expanded="true"] .dd-icon { transform: rotate(180deg); }
.dropdown-body {
  max-height: 0;
  padding: 0 1.5rem;
  overflow: hidden;
  transition: max-height .22s ease, padding .22s ease;
}
.dropdown-body.open {
  max-height: 900px;
  padding: 1.2rem 1.5rem;
}
.dropdown-body p, .dropdown-body ol, .dropdown-body ul { margin: 0; color: var(--text2); }
.dropdown-body ol, .dropdown-body ul { padding-left: 1.3rem; }
.dropdown-body li { margin-bottom: .7rem; }
.dropdown-body li:last-child { margin-bottom: 0; }

.conclusion-box {
  background: linear-gradient(135deg, var(--bg2), var(--bg3));
  border: 3px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1.6rem;
  margin: 1.8rem 0;
}
.conc-label {
  display: block;
  font-weight: bold;
  color: var(--blue-dark);
  text-transform: uppercase;
  font-size: .8rem;
  letter-spacing: .06em;
  margin-bottom: .5rem;
}
html.dark .conc-label { color: var(--yellow); }
.conclusion-box p { margin: 0; color: var(--text2); font-weight: bold; }

.lesson-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2.2rem;
  flex-wrap: wrap;
}
.lesson-nav-btn {
  border: 3px solid var(--blue);
  border-radius: 50px;
  padding: .6rem 1.2rem;
  text-decoration: none;
  color: var(--blue-dark);
  font-weight: bold;
  font-size: .9rem;
  transition: background var(--tr), color var(--tr);
  max-width: 40%;
}
html.dark .lesson-nav-btn { color: var(--yellow); border-color: var(--yellow); }
.lesson-nav-btn:hover { background: var(--blue); color: #fff; }
.lesson-nav-btn.disabled {
  opacity: .35;
  pointer-events: none;
  border-color: var(--border);
  color: var(--text3);
}
.lesson-counter { color: var(--text3); font-size: .9rem; font-weight: bold; white-space: nowrap; }

/* ============== FOOTER ============== */
footer {
  background: var(--nav-bg);
  color: #fff;
  text-align: center;
  padding: 2rem 1.5rem;
  font-size: .88rem;
  line-height: 1.8;
}
footer a { color: var(--yellow); }

/* ============== RESPONSIVE ============== */
@media (max-width: 700px) {
  .nav-inner { padding: 0 1rem; }
  .nav-links { gap: .7rem; }
  .nav-links a { font-size: .85rem; }
  .hero { padding: 3.2rem 1rem 2.6rem; }
  .main { padding: 2rem 1rem 3rem; }
  .lesson-meta-grid { grid-template-columns: 1fr; }
  .lesson-nav { flex-direction: column; align-items: stretch; }
  .lesson-nav-btn { max-width: 100%; text-align: center; }
  .lesson-counter { order: -1; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
}