/* =========================
   Sintraemsdes UI — THEME MAP
   Light (existente) + Dark
   ========================= */
:root {
  --brand-blue: #0057a4;
  --brand-yellow: #ffd23f;
  --brand-red: #e53935;
  --brand-green: #00a99d;

  --radius: 14px;
  --shadow-dark: 0 10px 24px rgba(0, 0, 0, 0.5);
  --shadow-light: 0 10px 24px rgba(0, 0, 0, 0.08);
}
:root[data-bs-theme="ligth"]{

  --ink:#2C2C2C;
  --ink-soft:#616161;
  --bg:#E9F4FF;
  --surface:#FFFFFF;
  --success:#4CAF50;
  --error:#E63946;
  --radius:14px;
  --shadow:0 10px 24px rgba(0, 0, 0, 0.656);

  --bs-primary: var(--brand-blue);
  --bs-secondary: var(--brand-green);
  --bs-warning: var(--brand-yellow);
  --bs-danger: var(--error);
  --bs-success: var(--success);
  --bs-body-color: var(--ink);
  --bs-body-bg: var(--bg);
}
/* ===== Fondo suave para LIGHT (azul arriba/derecha + amarillo abajo/izquierda) ===== */
:root[data-bs-theme="light"]{
  /* capas translúcidas derivadas de la paleta */
  --bg-layer-blue: color-mix(in oklab, var(--brand-blue) 12%, transparent);
  --bg-layer-yellow: color-mix(in oklab, var(--brand-yellow) 14%, transparent);
}

:root[data-bs-theme="light"] body{
  background:
    /* Azul elegante arriba-derecha */
    radial-gradient(1100px 700px at 92% -8%, var(--bg-layer-blue), transparent 60%),
    /* Amarillo suave abajo-izquierda */
    radial-gradient(900px 600px at -8% 108%, var(--bg-layer-yellow), transparent 62%),
    /* Base del tema */
    var(--bs-body-bg);
}

/* (Opcional) versión ligeramente más sutil si quieres menos saturación */
/*
:root[data-bs-theme="light"]{
  --bg-layer-blue: color-mix(in oklab, var(--brand-blue) 9%, transparent);
  --bg-layer-yellow: color-mix(in oklab, var(--brand-yellow) 11%, transparent);
}
*/
/* ===== Mejor estética de tarjetas en LIGHT ===== */
:root[data-bs-theme="light"] .card {
  background: linear-gradient(
      180deg,
      color-mix(in oklab, #ffffff 96%, var(--brand-blue) 4%),
      color-mix(in oklab, #ffffff 94%, var(--brand-yellow) 6%)
    );
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: var(--radius);
  box-shadow:
    0 4px 10px rgba(0, 0, 0, 0.04),
    0 10px 24px rgba(0, 0, 0, 0.06);
  color: var(--ink);
  transition: all 0.25s ease;
}

:root[data-bs-theme="light"] .card:hover {
  transform: translateY(-3px);
  box-shadow:
    0 6px 14px rgba(0, 0, 0, 0.08),
    0 16px 32px rgba(0, 0, 0, 0.1);
}

/* Titular más definido */
:root[data-bs-theme="light"] .card-title {
  color: color-mix(in oklab, var(--ink) 90%, var(--brand-blue) 10%);
}

/* Texto suave dentro de la tarjeta */
:root[data-bs-theme="light"] .card p,
:root[data-bs-theme="light"] .card .text-soft {
  color: color-mix(in oklab, var(--ink-soft) 85%, #333 15%);
}

/* === DARK (nuevo) === */
:root[data-bs-theme="dark"]{
  /* Tokens derivados para Dark */
  --ink: #E6E6E6;                /* texto principal */
  --ink-soft: #A5AAB3;           /* texto secundario */
  --bg: #0F141A;                 /* fondo app */
  --surface: #161C23;            /* tarjetas, navbar */
  --border-strong: #2A3440;      /* bordes */
  --success: #4CAF50;
  --error: #E63946;

  --shadow: 0 10px 24px rgba(0,0,0,.50);

  /* Integra con variables Bootstrap */
  --bs-body-bg: var(--bg);
  --bs-body-color: var(--ink);
  --bs-secondary-color: var(--ink-soft);
  --bs-border-color: var(--border-strong);
  --bs-emphasis-color: #c7ddff; /* para outlines/hover neutros */

  /* Anillos / focus */
  --focus-ring: rgba(0, 87, 164, 0.593);
}

/* ===== Base ===== */
:root[data-bs-theme="dark"] body{
  color: var(--ink);
  background:
    radial-gradient(1200px 800px at 80% -10%, rgba(0, 87, 164, 0.439), transparent 60%)
    var(--bg);
}
:root[data-bs-theme="dark"] .text-soft{ color: var(--ink-soft) !important; }

/* ===== Cards & contenedores ===== */
:root[data-bs-theme="dark"] .card{
  background: var(--surface);
  border: 1px solid var(--bs-border-color);
  box-shadow: var(--shadow);
}
:root[data-bs-theme="dark"] .modal-content{
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--bs-border-color);
}

/* ===== Botones ===== */
:root[data-bs-theme="dark"] .btn{
  border-radius: 12px;
  font-weight: 600;
}
:root[data-bs-theme="dark"] .btn-primary{
  background: linear-gradient(180deg, var(--brand-blue), #004a8d);
  border: 0;
}
:root[data-bs-theme="dark"] .btn-primary:hover{ filter: brightness(.95); }

:root[data-bs-theme="dark"] .btn-outline-secondary{
  --bs-btn-color: var(--bs-emphasis-color);
  --bs-btn-border-color: var(--bs-border-color);
  --bs-btn-hover-color: var(--bs-body-bg);
  --bs-btn-hover-bg: var(--bs-emphasis-color);
  --bs-btn-hover-border-color: var(--bs-emphasis-color);
  background: color-mix(in oklab, var(--surface) 85%, black 15%);
}

/* ===== Badges / acentos ===== */
:root[data-bs-theme="dark"] .badge-accent{
  background: var(--brand-yellow);
  color:#171717;
  font-weight:700;
}

/* ===== Formularios ===== */
:root[data-bs-theme="dark"] .form-control,
:root[data-bs-theme="dark"] .form-select{
  background: color-mix(in oklab, var(--surface) 88%, #0B0F14 12%);
  color: var(--ink);
  border: 1px solid var(--bs-border-color);
}
:root[data-bs-theme="dark"] .form-control::placeholder{ color: color-mix(in oklab, var(--ink-soft), white 10%); }
:root[data-bs-theme="dark"] .form-control:focus,
:root[data-bs-theme="dark"] .form-select:focus{
  border-color: color-mix(in oklab, var(--brand-blue) 80%, white 20%);
  box-shadow: 0 0 0 .2rem var(--focus-ring);
}
:root[data-bs-theme="dark"] .input-group .btn{
  background: color-mix(in oklab, var(--surface) 85%, black 15%);
  border-color: var(--bs-border-color);
}
:root[data-bs-theme="dark"] .form-check-input{
  background-color: color-mix(in oklab, var(--surface) 80%, black 20%);
  border-color: var(--bs-border-color);
}
:root[data-bs-theme="dark"] .form-check-input:checked{
  background-color: var(--bs-primary);
  border-color: var(--bs-primary);
  box-shadow: 0 0 0 .15rem rgba(0,87,164,.35);
}
:root[data-bs-theme="dark"] .invalid-feedback{
  color: color-mix(in oklab, var(--bs-danger), white 15%);
}

/* ===== Navbar / header ===== */
:root[data-bs-theme="dark"] .app-nav{
  background: var(--surface);
  border-bottom: 1px solid var(--bs-border-color);
}

/* ===== Opción de pregunta ===== */
:root[data-bs-theme="dark"] .option{
  background: var(--surface);
  color: var(--ink);
  border: 1.5px solid var(--bs-border-color);
}
:root[data-bs-theme="dark"] .option:hover{
  border-color: var(--brand-green);
  box-shadow: 0 6px 16px rgba(0,0,0,.35);
}
:root[data-bs-theme="dark"] .option.active{
  border-color: var(--brand-green);
  background:
    linear-gradient(0deg, rgba(0,169,157,.12), rgba(0,169,157,.12)),
    var(--surface);
}
:root[data-bs-theme="dark"] .option .letter{
  background: color-mix(in oklab, var(--brand-green) 12%, #0E1318 88%);
  color: color-mix(in oklab, var(--brand-green) 70%, white 30%);
}

/* ===== Progreso ===== */
:root[data-bs-theme="dark"] .progress{
  background: color-mix(in oklab, #e9eef5 16%, #0E1318 84%);
}
:root[data-bs-theme="dark"] .progress-bar{
  background: linear-gradient(90deg, var(--brand-green), var(--brand-blue));
}

/* ===== Tablas / bordes utilitarios ===== */
:root[data-bs-theme="dark"] .table{
  --bs-table-bg: transparent;
  --bs-table-border-color: var(--bs-border-color);
  color: var(--ink);
}
:root[data-bs-theme="dark"] .border,
:root[data-bs-theme="dark"] .border-top,
:root[data-bs-theme="dark"] .border-bottom,
:root[data-bs-theme="dark"] .border-start,
:root[data-bs-theme="dark"] .border-end{
  border-color: var(--bs-border-color) !important;
}

/* ===== Enlaces ===== */
:root[data-bs-theme="dark"] a{ color: var(--bs-primary); }
:root[data-bs-theme="dark"] a:hover{ color: color-mix(in oklab, var(--bs-primary) 85%, white 15%); text-decoration: underline; }

/* ===== Footer ===== */
:root[data-bs-theme="dark"] .footer{ color: #9099A6; }

/* ===== Sombras sutiles para imágenes/vídeo ===== */
:root[data-bs-theme="dark"] .ratio img{
  filter: saturate(1.04) contrast(1.04);
}
/* Footer (solo ajustes puntuales) */
.footer-logo img {
  max-width: 30px;
  max-height: 30px;
  transition: filter 0.2s ease;
}


/* ====== Base ====== */
html,
body {
  height: 100%;
}
body {
  color: var(--ink);
  background: radial-gradient(
      1200px 800px at 80% -10%,
      rgba(var(--bs-primary-rgb), 0.12),
      transparent 60%
    )
    var(--bs-body-bg);
  transition: background-color 0.2s ease, color 0.2s ease,
    border-color 0.2s ease, box-shadow 0.2s ease;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto,
    "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
}

/* ====== Utilidades ====== */
.text-soft {
  color: var(--ink-soft) !important;
}

/* Cards */
.card {
  border: 0;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background: var(--surface);
  color: var(--ink);
}
.card-title {
  font-weight: 700;
}

/* Botones */
.btn {
  border-radius: 12px;
  font-weight: 600;
}

/* Primario con gradiente de marca (visual) */
.btn-primary {
  background: linear-gradient(180deg, var(--brand-blue), #004a8d);
  border: 0;
}
.btn-primary:hover {
  filter: brightness(0.95);
}

/* Outline neutral que respeta el tema (útil para "Nuevo examen") */
.btn-outline-secondary {
  --bs-btn-color: var(--bs-emphasis-color);
  --bs-btn-border-color: var(--bs-emphasis-color);
  --bs-btn-hover-color: var(--bs-body-bg);
  --bs-btn-hover-bg: var(--bs-emphasis-color);
  --bs-btn-hover-border-color: var(--bs-emphasis-color);
  --bs-btn-active-color: var(--bs-body-bg);
  --bs-btn-active-bg: var(--bs-emphasis-color);
  --bs-btn-active-border-color: var(--bs-emphasis-color);
  --bs-btn-disabled-color: var(--bs-secondary-color);
  --bs-btn-disabled-border-color: var(--bs-border-color);
}
.btn-outline-secondary.btn-sm {
  line-height: 1.25;
}

/* Acentos propios */
.badge-accent {
  background: var(--brand-yellow);
  color: #1b1b1b;
  font-weight: 700;
}
.btn-accent {
  background: var(--brand-red);
  color: #fff;
}



/* Header simple */
.app-nav {
  background: var(--surface);
  border-bottom: 1px solid var(--bs-border-color);
  position: sticky;
  top: 0;
  z-index: 1020;
}
.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-blue {
  background: var(--brand-blue);
}
.dot-yellow {
  background: var(--brand-yellow);
}
.dot-red {
  background: var(--brand-red);
}
.dot-green {
  background: var(--brand-green);
}

/* KPI */
.kpi .value {
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 800;
}
.kpi .label {
  color: var(--ink-soft);
}

/* Opción de pregunta */
.option {
  border: 1.5px solid var(--option-border);
  border-radius: 12px;
  padding: 12px 14px;
  cursor: pointer;
  user-select: none;
  transition: 0.18s ease;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: var(--option-bg);
  color: var(--ink);
}
.option:hover {
  border-color: var(--brand-green);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.06);
}
.option.active {
  border-color: var(--brand-green);
  background: linear-gradient(
      0deg,
      var(--option-bg-active),
      var(--option-bg-active)
    ),
    var(--option-bg);
}
.option .letter {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  border-radius: 8px;
  background: var(--option-letter-bg);
  color: var(--option-letter-ink);
  display: grid;
  place-items: center;
  font-weight: 700;
}

/* Progress */
.progress {
  height: 10px;
  border-radius: 999px;
  background: var(--progress-track);
}
.progress-bar {
  background: linear-gradient(90deg, var(--bs-success), var(--bs-primary));
}

/* Footer (solo ajustes puntuales) */
.footer-logo img {
  max-width: 30px;
  max-height: 30px;
  transition: filter 0.2s ease;
}

/* Bordes coherentes con el tema */
.border-top {
  border-top-color: var(--bs-border-color) !important;
}
/* Soporte a clase personalizada (y typo) */
.border-top-light,
.border-top-ligth {
  border-top: 1px solid var(--bs-border-color) !important;
}

/* ========== Botón/ícono flotante de tema ========== */
.theme-toggle {
  cursor: pointer;
}
.theme-toggle.fab {
  position: fixed;
  right: 18px;
  bottom: 18px;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 1px solid var(--bs-border-color);
  background: var(--bs-body-bg);
  color: var(--bs-emphasis-color);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(6px);
  z-index: 9999;
  transition: transform 0.15s ease, box-shadow 0.2s ease,
    background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.theme-toggle.fab:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 26px rgba(0, 0, 0, 0.22);
}
.theme-toggle.fab:active {
  transform: translateY(0);
}
.theme-toggle.fab::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(var(--bs-primary-rgb), 0.35);
  animation: themePulse 2.4s infinite;
  pointer-events: none;
}
@keyframes themePulse {
  0% {
    box-shadow: 0 0 0 0 rgba(var(--bs-primary-rgb), 0.35);
  }
  70% {
    box-shadow: 0 0 0 14px rgba(var(--bs-primary-rgb), 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(var(--bs-primary-rgb), 0);
  }
}
/* ----------------------------------------- */
/* Landing */
/* ----------------------------------------- */
/* === Landing (Home) === */
.hero-gradient {
  background: radial-gradient(
      800px 480px at 100% -10%,
      rgba(var(--bs-primary-rgb), 0.18),
      transparent 60%
    ),
    radial-gradient(
      700px 400px at -10% 120%,
      rgba(0, 169, 157, 0.18),
      transparent 60%
    ),
    var(--surface);
}
.bg-subtle {
  background: var(--bs-tertiary-bg);
}

/* Banner competencias */
.banner-comp .cd-num {
  font-size: clamp(24px, 5vw, 36px);
  font-weight: 800;
  padding: 0.25rem 0.5rem;
  border-radius: 0.5rem;
  background: var(--bs-tertiary-bg);
  display: inline-block;
  min-width: 52px;
  text-align: center;
}
.banner-comp .ratio img,
.hero-gradient .ratio img {
  filter: saturate(1.05) contrast(1.02);
}

/* Utilidades */
.fw-extrabold {
  font-weight: 900;
}
.object-fit-cover {
  object-fit: cover;
}

/* Mejoras de modal video en dark */
.modal-content.bg-black {
  background: #000;
}
.element {
  box-shadow: inset -8px -9px 28px 0px rgba(19, 97, 197, 0.95);
}
/* --- Estilo para el plan VIP --- */
.vip-card {
  border: 2px solid #d4af37; /* dorado metálico */
  background: linear-gradient(180deg, #fffef8, #fff7e6);
  box-shadow: 0 0 25px rgba(212,175,55,0.3);
  transition: all 0.3s ease-in-out;
}
.vip-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 0 40px rgba(212,175,55,0.45);
}
.vip-badge {
  background: #fff8dc;
  border: 2px solid #d4af37;
  padding: 4px 10px;
  border-radius: 25px;
  box-shadow: 0 0 10px rgba(212,175,55,0.4);
  animation: shine 3s infinite ease-in-out;
}
.vip-divider {
  height: 3px;
  width: 60%;
  background: linear-gradient(90deg, transparent, #d4af37, transparent);
  border-radius: 50%;
}
.glow-gold {
  color: #d4af37 !important;
  text-shadow: 0 0 10px rgba(212,175,55,0.6), 0 0 20px rgba(212,175,55,0.4);
}
@keyframes shine {
  0%,100% { box-shadow: 0 0 10px rgba(212,175,55,0.4); }
  50% { box-shadow: 0 0 25px rgba(212,175,55,0.8); }
}
/* Card base */
.plan-card{
  background:#fff;
  border-radius:16px;
  border:1px solid #e6e9ef;
  padding:28px;
  box-shadow:0 8px 20px rgba(0,0,0,.06);
  transition:transform .25s ease, box-shadow .25s ease;
}
.plan-card:hover{
  transform:translateY(-6px);
  box-shadow:0 14px 30px rgba(0,0,0,.12);
}

/* Badge superior */
.plan-badge{
  display:inline-block;
  background:#eef5ff;
  color:#0057a4;
  font-weight:700;
  padding:6px 14px;
  border-radius:999px;
  margin-bottom:10px;
  font-size:.85rem;
}
.badge-popular{
  background:#eafbf5;
  color:#00a99d;
}

/* Básico (borde azul) */
.basic-card{
  border:2px solid #dbe7f8;
  background:linear-gradient(180deg,#ffffff, #fafdff);
}

/* Plus (borde verde-azulado) */
.plus-card{
  border:2px solid #cfeee7;
  background:linear-gradient(180deg,#ffffff, #f6fffb);
}

/* VIP (dorado) */
.vip-card{
  border:2px solid #d4af37;
  background:linear-gradient(180deg,#fffef8,#fff7e6);
  box-shadow:0 0 25px rgba(212,175,55,.3);
}
.vip-card:hover{
  box-shadow:0 0 40px rgba(212,175,55,.45);
}
.vip-badge{
  background:#fff8dc;
  border:2px solid #d4af37;
  color:#7a5c00;
  padding:4px 12px;
  border-radius:999px;
  top:-18px;
  box-shadow:0 0 12px rgba(212,175,55,.35);
  display:flex; align-items:center;
  gap:6px;
  animation:shine 3s infinite ease-in-out;
}
.vip-badge .bi-star-fill{ color:#d4af37; }
.vip-divider{
  height:3px; width:60%;
  background:linear-gradient(90deg,transparent,#d4af37,transparent);
  border-radius:999px;
  opacity:.9;
}
.glow-gold{
  color:#d4af37!important;
  text-shadow:0 0 10px rgba(212,175,55,.55), 0 0 20px rgba(212,175,55,.35);
}
@keyframes shine{
  0%,100%{ box-shadow:0 0 12px rgba(212,175,55,.35) }
  50%{ box-shadow:0 0 24px rgba(212,175,55,.8) }
}