/* ============================================================
   SISTEMA WEB COLEGIO - ESTILOS PRINCIPALES
   ============================================================ */

/* ── Variables & Reset ──────────────────────────────────── */
:root {
  --color-primary:   #1a4b8c;
  --color-secondary: #e8a020;
  --color-dark:      #0f2a52;
  --color-light:     #f4f8ff;
  --color-text:      #333;
  --color-muted:     #6c757d;
  --font-main:       'Poppins', sans-serif;
  --shadow-sm:       0 2px 8px rgba(0,0,0,.10);
  --shadow-md:       0 4px 20px rgba(0,0,0,.15);
  --shadow-lg:       0 8px 40px rgba(0,0,0,.18);
  --border-radius:   12px;
  --transition:      all .3s ease;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  color:       var(--color-text);
  line-height: 1.7;
  overflow-x:  hidden;
}

img { max-width: 100%; height: auto; }

a { text-decoration: none; color: inherit; }

/* ── Topbar ──────────────────────────────────────────────── */
.topbar {
  background: var(--color-dark);
  color: rgba(255,255,255,.85);
  font-size: .82rem;
}
.topbar .social-link {
  color: rgba(255,255,255,.7);
  margin-left: .6rem;
  font-size: 1rem;
  transition: var(--transition);
}
.topbar .social-link:hover { color: var(--color-secondary); }

/* ── Navbar ──────────────────────────────────────────────── */
#mainNav {
  background: var(--color-primary) !important;
  padding: .75rem 0;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
#mainNav.scrolled {
  background: var(--color-dark) !important;
  padding: .5rem 0;
  box-shadow: var(--shadow-md);
}
.logo-img { height: 48px; width: auto; object-fit: contain; }
.brand-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: .5px;
}
.navbar-nav .nav-link {
  font-weight: 500;
  font-size: .92rem;
  padding: .5rem 1rem !important;
  color: rgba(255,255,255,.9) !important;
  border-radius: 6px;
  transition: var(--transition);
  position: relative;
}
.navbar-nav .nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 50%;
  width: 0; height: 2px;
  background: var(--color-secondary);
  transition: var(--transition);
  transform: translateX(-50%);
}
.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after { width: 60%; }
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: #fff !important;
  background: rgba(255,255,255,.12);
}
.dropdown-menu {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  animation: fadeDown .2s ease;
}
.dropdown-item { font-size: .9rem; padding: .6rem 1.2rem; }
.dropdown-item:hover { background: var(--color-light); color: var(--color-primary); }

@keyframes fadeDown {
  from { opacity:0; transform:translateY(-8px); }
  to   { opacity:1; transform:translateY(0); }
}

/* ── Hero / Carrusel ─────────────────────────────────────── */
.hero-carousel { position: relative; }
.carousel-item {
  height: 100vh;
  max-height: 700px;
  min-height: 480px;
  position: relative;
}
.carousel-item img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.carousel-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg,
    rgba(15,42,82,.80) 0%,
    rgba(26,75,140,.60) 60%,
    rgba(0,0,0,.30) 100%);
}
.carousel-caption-custom {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 3rem 2rem 4rem;
  color: #fff;
  text-align: left;
}
.carousel-caption-custom h2 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  text-shadow: 0 2px 10px rgba(0,0,0,.4);
  margin-bottom: .75rem;
}
.carousel-caption-custom p {
  font-size: clamp(.95rem, 2vw, 1.2rem);
  opacity: .92;
  max-width: 600px;
  text-shadow: 0 1px 4px rgba(0,0,0,.3);
}
.carousel-btn-hero {
  background: var(--color-secondary);
  color: #fff;
  border: none;
  padding: .7rem 1.8rem;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
  display: inline-block;
}
.carousel-btn-hero:hover {
  background: #fff;
  color: var(--color-primary);
  transform: translateY(-2px);
}
.carousel-control-prev-icon,
.carousel-control-next-icon {
  background-color: rgba(255,255,255,.3);
  border-radius: 50%;
  padding: 1.2rem;
  background-size: 60%;
}
.carousel-indicators [data-bs-target] {
  width: 10px; height: 10px;
  border-radius: 50%;
  background-color: rgba(255,255,255,.6);
}
.carousel-indicators .active { background-color: var(--color-secondary); }

/* ── Secciones generales ─────────────────────────────────── */
.section-title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--color-primary);
  position: relative;
  display: inline-block;
  margin-bottom: 1.5rem;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px; left: 0;
  width: 60px; height: 4px;
  background: var(--color-secondary);
  border-radius: 2px;
}
.section-title.text-center::after { left: 50%; transform: translateX(-50%); }
.section-subtitle {
  color: var(--color-muted);
  font-size: 1.05rem;
  max-width: 600px;
}
.bg-light-custom { background: var(--color-light) !important; }

/* ── Tarjetas de noticias/eventos ───────────────────────── */
.card-noticia {
  border: none;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  height: 100%;
}
.card-noticia:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.card-noticia .card-img-top {
  height: 200px;
  object-fit: cover;
  transition: var(--transition);
}
.card-noticia:hover .card-img-top { transform: scale(1.04); }
.card-noticia .card-body { padding: 1.4rem; }
.card-noticia .badge-tipo {
  font-size: .72rem;
  padding: .3rem .7rem;
  border-radius: 20px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.badge-noticia    { background: var(--color-primary); color: #fff; }
.badge-evento     { background: #28a745; color: #fff; }
.badge-comunicado { background: var(--color-secondary); color: #fff; }
.card-noticia .card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: .5rem;
  line-height: 1.4;
}
.card-noticia .card-title a:hover { color: var(--color-secondary); }
.card-noticia .card-text { font-size: .88rem; color: var(--color-muted); }
.card-noticia .card-footer {
  background: none;
  border-top: 1px solid #f0f0f0;
  padding: .8rem 1.4rem;
  font-size: .82rem;
  color: var(--color-muted);
}
.card-fecha { font-size: .8rem; color: var(--color-muted); }
.btn-leer-mas {
  color: var(--color-primary);
  font-weight: 600;
  font-size: .85rem;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}
.btn-leer-mas:hover { color: var(--color-secondary); border-bottom-color: var(--color-secondary); }

/* ── Comunicados ─────────────────────────────────────────── */
.comunicado-item {
  display: flex; align-items: center; gap: 1rem;
  padding: 1rem;
  border-radius: 8px;
  border-left: 4px solid var(--color-secondary);
  background: #fff;
  box-shadow: var(--shadow-sm);
  margin-bottom: .8rem;
  transition: var(--transition);
}
.comunicado-item:hover { transform: translateX(4px); box-shadow: var(--shadow-md); }
.comunicado-fecha {
  min-width: 55px;
  text-align: center;
  background: var(--color-primary);
  color: #fff;
  border-radius: 8px;
  padding: .5rem;
  line-height: 1.2;
}
.comunicado-fecha .day  { font-size: 1.3rem; font-weight: 700; }
.comunicado-fecha .mon  { font-size: .7rem; text-transform: uppercase; }

/* ── Galería ─────────────────────────────────────────────── */
.galeria-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px,1fr)); gap: 12px; }
.galeria-item {
  position: relative; overflow: hidden;
  border-radius: 10px;
  aspect-ratio: 1;
  cursor: pointer;
}
.galeria-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.galeria-overlay {
  position: absolute; inset: 0;
  background: rgba(26,75,140,.7);
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  transition: var(--transition);
}
.galeria-overlay i { color: #fff; font-size: 2rem; }
.galeria-item:hover img   { transform: scale(1.08); }
.galeria-item:hover .galeria-overlay { opacity: 1; }

/* ── Videos ──────────────────────────────────────────────── */
.video-card {
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.video-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}
.video-thumb img { width: 100%; height: 100%; object-fit: cover; }
.video-play-btn {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,.35);
  transition: var(--transition);
}
.video-play-btn i { font-size: 3rem; color: #fff; }
.video-card:hover .video-play-btn { background: rgba(26,75,140,.6); }

/* ── Sección contacto ────────────────────────────────────── */
.contact-section { background: var(--color-primary); color: #fff; }
.contact-icon-box {
  display: flex; align-items: flex-start; gap: 1rem;
  margin-bottom: 1.5rem;
}
.contact-icon-box .icon {
  width: 48px; height: 48px;
  background: var(--color-secondary);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; flex-shrink: 0;
}
.form-control-white {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.3);
  color: #fff !important;
  border-radius: 8px;
}
.form-control-white::placeholder { color: rgba(255,255,255,.6); }
.form-control-white:focus {
  background: rgba(255,255,255,.2);
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 .2rem rgba(232,160,32,.25);
}
.btn-enviar {
  background: var(--color-secondary);
  color: #fff;
  border: none;
  padding: .8rem 2.5rem;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-enviar:hover { background: #fff; color: var(--color-primary); }

/* ── Footer ──────────────────────────────────────────────── */
.site-footer { background: var(--color-dark); color: rgba(255,255,255,.8); }
.footer-title {
  color: var(--color-secondary);
  font-weight: 700;
  font-size: .9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1.2rem;
}
.footer-links, .footer-news, .footer-contact { list-style: none; padding: 0; margin: 0; }
.footer-links li, .footer-news li, .footer-contact li { margin-bottom: .6rem; }
.footer-links a, .footer-news a { color: rgba(255,255,255,.7); font-size: .9rem; transition: var(--transition); }
.footer-links a:hover, .footer-news a:hover { color: var(--color-secondary); padding-left: 5px; }
.footer-contact li { display:flex; align-items:flex-start; font-size:.9rem; }
.footer-contact a { color: rgba(255,255,255,.7); transition: var(--transition); }
.footer-contact a:hover { color: var(--color-secondary); }
.footer-news a { display: flex; flex-direction: column; gap: 2px; }
.footer-logo { max-height: 50px; filter: brightness(0) invert(1); }
.social-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px;
  background: rgba(255,255,255,.12);
  color: #fff;
  border-radius: 50%;
  font-size: 1rem;
  margin-right: .4rem;
  transition: var(--transition);
}
.social-btn:hover { background: var(--color-secondary); color: #fff; }
.footer-bottom { background: rgba(0,0,0,.3); }

/* ── Botón scroll top ────────────────────────────────────── */
.btn-top-scroll {
  position: fixed; bottom: 2rem; right: 2rem;
  width: 45px; height: 45px;
  background: var(--color-primary);
  color: #fff;
  border: none; border-radius: 50%;
  font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
  z-index: 999;
}
.btn-top-scroll.show { opacity: 1; visibility: visible; }
.btn-top-scroll:hover { background: var(--color-secondary); transform: translateY(-3px); }

/* ── Modales ─────────────────────────────────────────────── */
.modal-anuncio .modal-header {
  background: var(--color-primary);
  color: #fff;
}
.modal-anuncio .btn-close { filter: invert(1); }
.modal-anuncio .modal-img {
  width: 100%; max-height: 350px;
  object-fit: cover;
  border-radius: 8px;
}

/* ── Spinner de carga ────────────────────────────────────── */
#page-loader {
  position: fixed; inset: 0;
  background: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  z-index: 9999;
  transition: opacity .5s ease;
}
#page-loader.fade-out { opacity: 0; pointer-events: none; }
.loader-logo { color: #fff; font-size: 2rem; font-weight: 700; }
.loader-spinner {
  width: 40px; height: 40px;
  border: 4px solid rgba(255,255,255,.3);
  border-top-color: var(--color-secondary);
  border-radius: 50%;
  animation: spin .8s linear infinite;
  margin-top: 1rem;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Botones generales ───────────────────────────────────── */
.btn-primary-custom {
  background: var(--color-primary);
  color: #fff !important;
  border: 2px solid var(--color-primary);
  padding: .65rem 1.8rem;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-primary-custom:hover {
  background: transparent;
  color: var(--color-primary) !important;
}
.btn-outline-custom {
  background: transparent;
  color: var(--color-primary) !important;
  border: 2px solid var(--color-primary);
  padding: .65rem 1.8rem;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-outline-custom:hover {
  background: var(--color-primary);
  color: #fff !important;
}

/* ── Responsividad ───────────────────────────────────────── */
@media (max-width: 768px) {
  .carousel-item { height: 70vw; max-height: 420px; }
  .carousel-caption-custom { padding: 1.5rem 1rem 2.5rem; }
  .section-title { font-size: 1.5rem; }
  .galeria-grid { grid-template-columns: repeat(2, 1fr); }
  #mainNav { padding: .5rem 0; }
}

@media (max-width: 480px) {
  .carousel-item { min-height: 300px; max-height: 350px; }
  .galeria-grid { grid-template-columns: repeat(2, 1fr); gap: 6px; }
}

/* ── Lightbox simple ─────────────────────────────────────── */
.lightbox-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.92);
  display: flex; align-items: center; justify-content: center;
  z-index: 9998;
  opacity: 0; visibility: hidden;
  transition: var(--transition);
}
.lightbox-overlay.active { opacity: 1; visibility: visible; }
.lightbox-img { max-width: 90vw; max-height: 90vh; border-radius: 8px; }
.lightbox-close {
  position: absolute; top: 1.5rem; right: 2rem;
  color: #fff; font-size: 2rem; cursor: pointer;
  background: none; border: none;
}

/* ── Sticky Footer (footer siempre al fondo) ─────────────── */
html, body {
  height: 100%;
}
body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
/* Todo lo que no sea footer crece para ocupar el espacio */
body > *:not(footer):not(#page-loader):not(#btnAdminAcceso):not(.lightbox-overlay) {
  flex-shrink: 0;
}
/* El main/contenido principal empuja el footer hacia abajo */
.site-footer {
  margin-top: auto;
}

/* ── Botón Admin flotante (siempre visible encima de todo) ── */
#btnAdminAcceso {
  position: fixed !important;
  bottom: 5.5rem !important;
  right: 2rem !important;
  z-index: 99999 !important;
  display: flex !important;
  align-items: center;
  gap: 7px;
  background: #1a4b8c;
  color: #fff !important;
  padding: 8px 14px 8px 11px;
  border-radius: 30px;
  font-family: 'Poppins', sans-serif;
  font-size: .78rem;
  font-weight: 600;
  text-decoration: none !important;
  box-shadow: 0 4px 18px rgba(0,0,0,.5);
  border: 2px solid rgba(255,255,255,.3);
  transition: all .25s ease;
  white-space: nowrap;
}
#btnAdminAcceso:hover {
  background: #0f2a52 !important;
  color: #fff !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(0,0,0,.55);
}

/* ── Botón Admin en Navbar ───────────────────────────────── */
.btn-admin-navbar {
  display:        inline-flex;
  align-items:    center;
  padding:        .4rem 1rem;
  background:     var(--color-secondary);
  color:          #fff !important;
  border-radius:  50px;
  font-size:      .82rem;
  font-weight:    600;
  text-decoration: none;
  border:         2px solid rgba(255,255,255,.3);
  transition:     var(--transition);
  white-space:    nowrap;
}
.btn-admin-navbar:hover {
  background:  #fff;
  color:       var(--color-primary) !important;
  transform:   translateY(-1px);
}
.btn-admin-activo {
  background:  rgba(255,255,255,.2);
  border-color: rgba(255,255,255,.5);
}
.btn-admin-activo:hover {
  background: #fff;
  color: var(--color-primary) !important;
}