/* 
  Clases Bíblicas — Landing (original template)
  - Fullscreen sections with scroll-snap
  - Animated reveal on scroll
  - Interactive 3D CSS book (drag to rotate)
  - Particle canvas background + cursor glow
*/

:root{
  --bg: #0b0d1c;
  --bg2:#061a1d;
  --text:#e9f1ff;
  --muted:#b8c7ff;
  --muted2:#9fb1c9;
  --glass: rgba(255,255,255,0.06);
  --glass2: rgba(255,255,255,0.09);
  --stroke: rgba(255,255,255,0.14);
  --shadow: 0 24px 80px rgba(0,0,0,0.55);

  --g1:#7cf4d4;
  --g2:#8b7cff;
  --g3:#3aa6ff;

  --radius: 18px;
  --maxw: 1160px;

  --ease: cubic-bezier(.2,.8,.2,1);
}

*{ box-sizing: border-box; }
html, body{ height: 100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Noto Sans", Arial;
  color: var(--text);
  background: radial-gradient(1200px 700px at 15% 10%, rgba(124,244,212,0.12), transparent 55%),
              radial-gradient(900px 700px at 85% 20%, rgba(139,124,255,0.14), transparent 55%),
              radial-gradient(700px 700px at 60% 90%, rgba(58,166,255,0.10), transparent 60%),
              linear-gradient(180deg, var(--bg) 0%, #070a15 50%, #050813 100%);
  overflow: hidden;
}

a{ color: inherit; text-decoration: none; }
img{ max-width: 100%; display: block; }

.container{
  width: min(var(--maxw), calc(100% - 48px));
  margin: 0 auto;
}

#bgCanvas{
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.65;
  pointer-events: none;
}

.cursor-glow{
  position: fixed;
  width: 520px;
  height: 520px;
  transform: translate(-50%,-50%);
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(124,244,212,0.18), transparent 55%),
              radial-gradient(circle at 70% 40%, rgba(139,124,255,0.14), transparent 55%),
              radial-gradient(circle at 40% 70%, rgba(58,166,255,0.12), transparent 60%);
  filter: blur(10px);
  z-index: 1;
  pointer-events: none;
  opacity: 0;
  transition: opacity 300ms var(--ease);
}

/* Topbar */
.topbar{
  position: fixed;
  top: 16px;
  left: 16px;
  right: 16px;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 14px;
  background: rgba(6,8,16,0.42);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 999px;
  backdrop-filter: blur(12px);
}

.brand img{ height: 44px; width: auto; }

.top-actions{
  display: flex;
  gap: 10px;
  align-items: center;
}

/* Buttons */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  letter-spacing: 0.2px;
  transition: transform 180ms var(--ease), background 180ms var(--ease), border-color 180ms var(--ease);
  user-select: none;
  white-space: nowrap;
}
.btn:active{ transform: scale(0.98); }
.btn-primary{
  background: linear-gradient(135deg, rgba(124,244,212,0.92), rgba(139,124,255,0.92), rgba(58,166,255,0.92));
  color: #061016;
  box-shadow: 0 14px 40px rgba(124,244,212,0.12), 0 14px 40px rgba(139,124,255,0.12);
}
.btn-primary:hover{ transform: translateY(-1px); }
.btn-ghost{
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.14);
  color: var(--text);
}
.btn-ghost:hover{ background: rgba(255,255,255,0.09); transform: translateY(-1px); }

/* Side nav */
.sidenav{
  position: fixed;
  top: 92px;
  left: 16px;
  z-index: 35;
}
.sidenav__toggle{
  display: none;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
}
.sidenav__inner{
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
  padding: 12px 10px 10px;
  background: rgba(6,8,16,0.36);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
}
.sidenav__link{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 12px;
  color: rgba(233,241,255,0.92);
  border: 1px solid transparent;
  transition: background 180ms var(--ease), border-color 180ms var(--ease);
  font-weight: 700;
  letter-spacing: 0.3px;
  position: relative;
}
.sidenav__link span{ font-size: 13px; }
.sidenav__link:hover{
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.14);
}
.sidenav__link.is-active{
  background: rgba(255,255,255,0.09);
  border-color: rgba(255,255,255,0.20);
}
.sidenav__letters{
  margin-top: 12px;
  display: grid;
  gap: 4px;
  padding-left: 8px;
  opacity: 0.28;
  user-select: none;
}
.sidenav__letters span{
  display:block;
  font-weight: 900;
  letter-spacing: 0.35em;
  font-size: 12px;
}

/* Scroller */
.scroller{
  cursor: grab;
  position: relative;
  z-index: 10;
  height: 100vh;
  overflow-y: auto;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
}
.section{
  position: relative;
  min-height: 100vh;
  scroll-snap-align: start;
  padding: 118px 0 88px;
  display: flex;
  align-items: center;
}
.section__bg{
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.26;
  z-index: -2;
}
.section__bg--pattern{
  background-size: 720px 720px;
  background-repeat: repeat;
  opacity: 0.65;
}
.section__overlay{
  position: absolute;
  inset:0;
  background: radial-gradient(900px 600px at 20% 20%, rgba(124,244,212,0.16), transparent 60%),
              radial-gradient(900px 700px at 80% 30%, rgba(139,124,255,0.18), transparent 60%),
              linear-gradient(180deg, rgba(6,8,16,0.66), rgba(6,8,16,0.90));
  z-index: -1;
}
.section__overlay--soft{
  background: radial-gradient(900px 600px at 20% 20%, rgba(124,244,212,0.14), transparent 60%),
              radial-gradient(900px 700px at 80% 30%, rgba(139,124,255,0.14), transparent 60%),
              linear-gradient(180deg, rgba(6,8,16,0.48), rgba(6,8,16,0.84));
}

.section-hero{ padding-top: 128px; }
.section-contact{ padding-bottom: 0; }

/* Typography */
.pill{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  color: rgba(233,241,255,0.92);
  width: fit-content;
}
.h1{
  margin: 16px 0 10px;
  font-size: clamp(34px, 4vw, 56px);
  line-height: 1.04;
  letter-spacing: -0.02em;
}
.h1__sub{
  background: linear-gradient(135deg, var(--g1), var(--g2), var(--g3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.h2{
  margin: 0 0 12px;
  font-size: clamp(26px, 2.6vw, 40px);
  letter-spacing: -0.02em;
}
.h3{
  margin: 0 0 8px;
  font-size: 18px;
  letter-spacing: 0.2px;
}
.lead{
  margin: 0;
  color: rgba(233,241,255,0.84);
  font-size: 16px;
  line-height: 1.7;
  max-width: 62ch;
}
.note{
  margin-top: 14px;
  color: rgba(184,199,255,0.78);
  font-size: 13px;
  line-height: 1.6;
}
.note.small{ font-size: 12px; }

/* Layout helpers */
.grid-2{
  display:grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  align-items: start;
}
.card{
  padding: 22px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.14);
}
.card-glass{
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}

/* Hero layout */
.hero{
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: center;
}
.hero__cta{
  display:flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 18px 0 16px;
}
.hero__badges{
  display:grid;
  gap: 10px;
  margin-top: 8px;
  max-width: 560px;
}
.badge{
  display:flex;
  gap: 12px;
  align-items: center;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
}
.badge strong{ display:block; font-size: 13px; }
.badge span{ display:block; font-size: 12px; color: rgba(184,199,255,0.82); }

/* Interactive book */
.hero__visual{
  position: relative;
  display:flex;
  align-items:center;
  justify-content:center;
  min-height: 440px;
}
.book-wrap{
  width: min(420px, 90vw);
  aspect-ratio: 1 / 1;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius: 26px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: var(--shadow);
  position: relative;
  overflow:hidden;
  user-select: none;
  touch-action: none;
}
.book-wrap::before{
  content:"";
  position:absolute;
  inset:-40%;
  background: conic-gradient(from 90deg, rgba(124,244,212,0.24), rgba(139,124,255,0.18), rgba(58,166,255,0.18), rgba(124,244,212,0.24));
  filter: blur(22px);
  opacity: 0.50;
  animation: spin 10s linear infinite;
}
@keyframes spin{ to{ transform: rotate(360deg); } }

.book3d{
  position: relative;
  width: 210px;
  height: 280px;
  transform-style: preserve-3d;
  transform: rotateX(14deg) rotateY(-18deg);
  transition: transform 180ms var(--ease);
  z-index: 2;
}
.face{
  position:absolute;
  inset:0;
  background: rgba(8,10,20,0.86);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}
.face.front{
  transform: translateZ(18px);
  background: linear-gradient(145deg, rgba(124,244,212,0.10), rgba(139,124,255,0.12), rgba(58,166,255,0.10));
}
.face.back{ transform: rotateY(180deg) translateZ(18px); background: rgba(10,12,24,0.9); }
.face.left{
  width: 36px;
  left: -18px;
  transform: rotateY(-90deg) translateZ(18px);
  border-radius: 12px;
  background: rgba(233,241,255,0.06);
}
.face.right{
  width: 36px;
  right: -18px;
  transform: rotateY(90deg) translateZ(192px);
  border-radius: 12px;
  background: rgba(233,241,255,0.05);
}
.face.top{
  height: 36px;
  top: -18px;
  transform: rotateX(90deg) translateZ(18px);
  border-radius: 12px;
  background: rgba(233,241,255,0.05);
}
.face.bottom{
  height: 36px;
  bottom: -18px;
  transform: rotateX(-90deg) translateZ(244px);
  border-radius: 12px;
  background: rgba(233,241,255,0.05);
}

.face__title{
  font-weight: 900;
  letter-spacing: 0.22em;
  font-size: 18px;
  margin: 26px 18px 6px;
  opacity: 0.95;
}
.face__subtitle{
  margin: 0 18px;
  color: rgba(184,199,255,0.84);
  font-weight: 700;
  letter-spacing: 0.06em;
  font-size: 12px;
}

/* Hints */
.hint{
  position:absolute;
  top: 18px;
  left: 18px;
  display:flex;
  align-items:center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  z-index: 3;
  font-weight: 800;
  font-size: 12px;
}
.hint__dot{
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--g1), var(--g2), var(--g3));
  box-shadow: 0 0 20px rgba(124,244,212,0.25);
}
.scroll-hint{
  position:absolute;
  bottom: 18px;
  right: 18px;
  display:flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  z-index: 3;
  opacity: 0.9;
}
.scroll-hint__text{
  font-size: 12px;
  color: rgba(184,199,255,0.88);
  font-weight: 800;
}
.scroll-hint__arrow{
  width: 22px;
  height: 34px;
  border-radius: 999px;
  border: 2px solid rgba(255,255,255,0.28);
  position: relative;
}
.scroll-hint__arrow::after{
  content:"";
  position:absolute;
  left: 50%;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: rgba(255,255,255,0.75);
  transform: translateX(-50%);
  animation: scrollDot 1.4s var(--ease) infinite;
}
@keyframes scrollDot{
  0%{ transform: translate(-50%,0); opacity: .2; }
  40%{ opacity: .9; }
  100%{ transform: translate(-50%,16px); opacity: .2; }
}

/* Content blocks */
.stat-row{
  display:flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}
.stat{
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  min-width: 150px;
}
.stat__num{
  display:block;
  font-weight: 900;
  font-size: 22px;
}
.stat__label{
  display:block;
  color: rgba(184,199,255,0.82);
  font-weight: 700;
  font-size: 12px;
}

.checklist{
  margin: 12px 0 0;
  padding-left: 18px;
  color: rgba(233,241,255,0.86);
  line-height: 1.8;
}
.mini-cta{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
}

/* Steps */
.steps{
  display:grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 14px;
  margin-top: 18px;
}
.step{
  padding: 18px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: var(--shadow);
}
.step p{ margin:0; color: rgba(184,199,255,0.84); line-height: 1.65; font-size: 13px; }

/* Levels */
.level-grid{
  display:grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 14px;
  margin-top: 18px;
}
.level-card{
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.06);
  box-shadow: var(--shadow);
}
.level-card p{ margin:0; color: rgba(184,199,255,0.84); line-height: 1.65; font-size: 13px; }
.level-meta{
  margin-top: 14px;
  display:flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 12px;
  color: rgba(233,241,255,0.78);
  font-weight: 800;
}
.callout{
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.05);
  color: rgba(233,241,255,0.82);
  line-height: 1.6;
}

/* Classes / schedule */
.feature-list{
  display:grid;
  gap: 12px;
  margin-top: 16px;
}
.feature{
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.06);
}
.feature strong{ display:block; font-size: 13px; }
.feature span{ display:block; margin-top: 2px; font-size: 12px; color: rgba(184,199,255,0.82); }

.schedule-card .schedule{ margin-top: 10px; }
.schedule__row{
  display:flex;
  justify-content: space-between;
  gap: 12px;
  color: rgba(233,241,255,0.78);
  font-weight: 800;
  font-size: 12px;
}
.schedule__title{
  margin: 6px 0 14px;
  font-weight: 900;
  letter-spacing: 0.01em;
}

/* Community cards */
.cards-3{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 14px;
  margin-top: 18px;
}
.cards-3 p{ margin:0; color: rgba(184,199,255,0.84); line-height: 1.65; font-size: 13px; }

/* Contact */
.contact-card{
  margin-top: 16px;
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.06);
}
.contact-line{
  display:flex;
  gap: 10px;
  align-items: center;
  padding: 8px 0;
  color: rgba(233,241,255,0.86);
}
.form label{ display:block; margin-bottom: 12px; }
.form span{ display:block; font-size: 12px; color: rgba(184,199,255,0.86); font-weight: 800; margin-bottom: 6px; }
.form input, .form textarea{
  width: 100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(6,8,16,0.52);
  color: var(--text);
  outline: none;
}
.form input:focus, .form textarea:focus{
  border-color: rgba(124,244,212,0.35);
  box-shadow: 0 0 0 4px rgba(124,244,212,0.10);
}
.form button{ width: 100%; margin-top: 6px; }

.footer{
  margin-top: 28px;
  padding: 18px 0 26px;
  border-top: 1px solid rgba(255,255,255,0.10);
  background: rgba(6,8,16,0.58);
}
.footer__inner{
  display:flex;
  flex-wrap: wrap;
  align-items:center;
  gap: 10px;
  justify-content: center;
  color: rgba(184,199,255,0.85);
  font-weight: 800;
}
.footer__sep{ opacity: 0.5; }

/* Scroll reveal */
[data-animate]{
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 520ms var(--ease), transform 520ms var(--ease);
  will-change: opacity, transform;
}
[data-animate="fade-in"]{ transform: translateY(0); }
.in-view[data-animate]{
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 980px){
  .grid-2{ grid-template-columns: 1fr; }
  .hero{ grid-template-columns: 1fr; }
  .steps{ grid-template-columns: repeat(2, minmax(0,1fr)); }
  .level-grid{ grid-template-columns: repeat(2, minmax(0,1fr)); }
  .cards-3{ grid-template-columns: 1fr; }
  .hero__visual{ min-height: 360px; }
}

@media (max-width: 700px){
  .top-actions{ display:none; }
  .sidenav{ top: 86px; left: 12px; }
  .sidenav__toggle{ display:block; }
  .sidenav__inner{ display:none; }
  .sidenav.is-open .sidenav__inner{ display:flex; }
  .section{ padding: 104px 0 72px; }
  .book-wrap{ width: min(340px, 92vw); }
  .steps{ grid-template-columns: 1fr; }
  .level-grid{ grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce){
  *{ scroll-behavior: auto !important; }
  .book-wrap::before{ animation: none !important; }
  [data-animate]{ transition: none !important; opacity: 1 !important; transform: none !important; }
  .scroll-hint__arrow::after{ animation: none !important; }
  .cursor-glow{ display:none !important; }
}

.scroller.is-grabbing{ cursor: grabbing; }

/* Auth pages (same visual language as landing) */
.auth-page{
  position: relative;
  z-index: 10;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 120px 20px 40px;
}

.auth-card{
  width: min(900px, 100%);
  padding: 28px;
}

.auth-lead{
  margin-bottom: 18px;
}

.auth-form{
  display: grid;
  gap: 14px;
}

.auth-grid{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.auth-field{
  display: grid;
  gap: 7px;
}

.auth-field span{
  font-size: 13px;
  color: rgba(233,241,255,0.86);
  font-weight: 700;
}

.auth-field input{
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(6,8,16,0.5);
  color: var(--text);
  padding: 12px 14px;
  outline: none;
  transition: border-color 180ms var(--ease), box-shadow 180ms var(--ease);
}

.password-wrap{
  position: relative;
}

.password-wrap input{
  padding-right: 44px;
}

.password-toggle{
  position: absolute;
  top: 50%;
  right: 10px;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  border: 1px solid rgba(255,255,255,0.24);
  background: rgba(255,255,255,0.06);
  color: rgba(233,241,255,0.95);
  border-radius: 8px;
  cursor: pointer;
  line-height: 1;
  display: grid;
  place-items: center;
  font-size: 14px;
}

.password-toggle:hover{
  background: rgba(255,255,255,0.12);
}

.password-toggle.is-on{
  border-color: rgba(124,244,212,0.6);
  color: #9af9dd;
}

.auth-field input:focus{
  border-color: rgba(124,244,212,0.7);
  box-shadow: 0 0 0 3px rgba(124,244,212,0.15);
}

.auth-submit{
  margin-top: 8px;
}

.auth-message{
  min-height: 20px;
  margin: 8px 0 0;
  font-weight: 700;
  color: var(--muted);
}

.auth-message.is-ok{ color: #9af9dd; }
.auth-message.is-error{ color: #ffb3b3; }

.link-inline{
  text-decoration: underline;
  text-underline-offset: 2px;
}

.auth-help{
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.04);
  border-radius: 12px;
  padding: 12px;
}

.auth-help p{
  margin: 0 0 10px;
  color: rgba(233,241,255,0.9);
}

.auth-apps{
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.auth-apps .btn{
  padding: 10px 12px;
  font-size: 13px;
}

@media (max-width: 840px){
  .auth-grid{ grid-template-columns: 1fr; }
  .auth-card{ padding: 22px; }
}