/* ============================================================
   Regional El Alto — Estilos principales
   Colores → edita las variables en :root
   ============================================================ */

/* ── Variables ── */
:root {
  --color-primario:   #8B0000;
  --color-secundario: #C0392B;
  --color-acento:     #F4D03F;
  --color-oscuro:     #1a1a1a;
  --color-gris:       #2c2c2c;
  --color-gris-medio: #666;
  --color-gris-claro: #f4f4f4;
  --color-blanco:     #ffffff;
  --color-texto:      #222;

  --fuente-titulo: 'Playfair Display', Georgia, serif;
  --fuente-cuerpo: 'Source Sans 3', 'Segoe UI', sans-serif;
  --fuente-mono:   'Courier New', monospace;

  --radio:      6px;
  --sombra:     0 4px 20px rgba(0,0,0,0.13);
  --transicion: 0.28s ease;
  --max-ancho:  1200px;
  --nav-alto:   68px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--fuente-cuerpo); color: var(--color-texto); background: var(--color-blanco); line-height: 1.6; }
img  { max-width: 100%; display: block; }
a    { text-decoration: none; color: inherit; }
ul   { list-style: none; }

/* ── Utilidades ── */
.container {
  max-width: var(--max-ancho);
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 32px);
}
.seccion { padding: clamp(50px, 8vw, 90px) 0; }

.seccion-titulo {
  font-family: var(--fuente-titulo);
  font-size: clamp(1.5rem, 3vw, 2.3rem);
  color: var(--color-primario);
  margin-bottom: 10px;
  display: inline-block;
}
.seccion-titulo::after {
  content: '';
  display: block;
  width: 56px;
  height: 4px;
  background: var(--color-acento);
  margin-top: 8px;
}
.seccion-bajada {
  color: var(--color-gris-medio);
  font-size: clamp(0.9rem, 2vw, 1rem);
  max-width: 640px;
  margin-bottom: 36px;
  line-height: 1.65;
}

/* ── Botones ── */
.btn {
  display: inline-block;
  padding: 10px 22px;
  border-radius: var(--radio);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transicion);
  letter-spacing: 0.4px;
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn-primario  { background: var(--color-primario); color: #fff; border-color: var(--color-primario); }
.btn-primario:hover  { background: transparent; color: var(--color-primario); }
.btn-acento    { background: var(--color-acento); color: var(--color-oscuro); border-color: var(--color-acento); }
.btn-acento:hover    { background: transparent; color: var(--color-oscuro); border-color: var(--color-oscuro); }
.btn-outline   { background: transparent; color: var(--color-primario); border-color: var(--color-primario); }
.btn-outline:hover   { background: var(--color-primario); color: #fff; }

/* ════════════════════════════════════════════
   NAVBAR
════════════════════════════════════════════ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-alto);
  z-index: 1000;
  background: rgba(26,26,26,0.97);
  backdrop-filter: blur(10px);
  border-bottom: 3px solid var(--color-primario);
  transition: var(--transicion);
  display: flex;
  align-items: center;
}
#navbar.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.4); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 16px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}
.nav-logo img { height: 42px; width: auto; object-fit: contain; }
.nav-logo-texto {
  color: #fff;
  font-family: var(--fuente-titulo);
  font-size: clamp(0.85rem, 2vw, 1.05rem);
  font-weight: 700;
  line-height: 1.2;
}
.nav-logo-texto span {
  display: block;
  font-size: 0.65rem;
  font-family: var(--fuente-cuerpo);
  font-weight: 400;
  color: var(--color-acento);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

/* Nav links */
.nav-menu {
  display: flex;
  gap: 2px;
  align-items: center;
  flex-wrap: nowrap;
}
.nav-menu a {
  color: rgba(255,255,255,0.82);
  padding: 7px 12px;
  border-radius: var(--radio);
  font-size: clamp(0.78rem, 1.2vw, 0.88rem);
  font-weight: 500;
  transition: var(--transicion);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}
.nav-menu a:hover, .nav-menu a.activo {
  color: var(--color-acento);
  border-bottom-color: var(--color-acento);
}

/* Hamburguesa */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
  flex-shrink: 0;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  transition: var(--transicion);
  transform-origin: center;
}
.nav-toggle.abierto span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.abierto span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.abierto span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ════════════════════════════════════════════
   HERO
════════════════════════════════════════════ */
#inicio {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--nav-alto);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-color: var(--color-oscuro);
  /* background-image se aplica desde JS */
  background-size: cover;
  background-position: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(139,0,0,0.88) 0%, rgba(26,26,26,0.72) 60%, rgba(0,0,0,0.55) 100%);
}
.hero-contenido {
  position: relative;
  z-index: 2;
  color: #fff;
  max-width: 740px;
  animation: fadeSlideUp 0.9s ease both;
  padding: clamp(40px, 8vw, 80px) 0;
}
.hero-etiqueta {
  display: inline-block;
  background: var(--color-acento);
  color: var(--color-oscuro);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 2px;
  margin-bottom: 22px;
}
.hero-titulo {
  font-family: var(--fuente-titulo);
  font-size: clamp(2.2rem, 6vw, 4.8rem);
  line-height: 1.1;
  margin-bottom: 14px;
  font-weight: 700;
}
.hero-titulo em { font-style: normal; color: var(--color-acento); }
.hero-subtitulo {
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  font-weight: 300;
  margin-bottom: 16px;
  opacity: 0.9;
}
.hero-texto {
  font-size: clamp(0.9rem, 2vw, 1.05rem);
  opacity: 0.78;
  max-width: 540px;
  margin-bottom: 36px;
  line-height: 1.7;
}
.hero-acciones {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.5);
  font-size: 0.7rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  animation: bounce 2s infinite;
}
.hero-scroll-flecha {
  width: 22px; height: 22px;
  border-right: 2px solid rgba(255,255,255,0.45);
  border-bottom: 2px solid rgba(255,255,255,0.45);
  transform: rotate(45deg);
}

/* ════════════════════════════════════════════
   DOCUMENTOS
════════════════════════════════════════════ */
#documentos { background: var(--color-gris-claro); }
.docs-cabecera { margin-bottom: 40px; }
.docs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(20px, 4vw, 40px);
}
.docs-columna h3 {
  font-family: var(--fuente-titulo);
  font-size: 1rem;
  color: var(--color-primario);
  border-bottom: 3px solid var(--color-acento);
  padding-bottom: 10px;
  margin-bottom: 20px;
}
.docs-columna > p {
  color: var(--color-gris-medio);
  font-size: 0.9rem;
  margin-bottom: 20px;
  line-height: 1.6;
}
.doc-item {
  background: #fff;
  border-radius: var(--radio);
  padding: 16px 18px;
  margin-bottom: 10px;
  border-left: 4px solid var(--color-primario);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  transition: var(--transicion);
}
.doc-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--sombra);
  border-left-color: var(--color-acento);
}
.doc-item-texto {
  font-size: 0.88rem;
  color: var(--color-texto);
  flex: 1;
  line-height: 1.5;
}

/* ════════════════════════════════════════════
   CONVOCATORIAS VIGENTES
════════════════════════════════════════════ */
#convocatorias {
  background: var(--color-blanco);
}
.conv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 3vw, 28px);
}
.conv-card {
  background: var(--color-blanco);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 3px 18px rgba(0,0,0,0.1);
  transition: var(--transicion);
  display: flex;
  flex-direction: column;
  border: 1px solid #eee;
}
.conv-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 36px rgba(139,0,0,0.14);
}

/* Imagen de la convocatoria */
.conv-img-wrap {
  width: 100%;
  height: clamp(160px, 22vw, 220px);
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, var(--color-primario), #3a0000);
  flex-shrink: 0;
}
.conv-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.conv-card:hover .conv-img-wrap img { transform: scale(1.06); }
.conv-img-wrap.sin-imagen::after {
  content: '📋';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  opacity: 0.4;
}

/* Badge de estado */
.conv-badge {
  position: absolute;
  top: 12px; left: 12px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 4px 12px;
  border-radius: 20px;
  z-index: 2;
  backdrop-filter: blur(4px);
}
.badge-vigente { background: rgba(39,174,96,0.92);  color: #fff; }
.badge-proxima { background: rgba(243,156,18,0.92); color: #fff; }
.badge-cerrada { background: rgba(100,100,100,0.92);color: #fff; }

/* Cuerpo de la convocatoria */
.conv-cuerpo {
  padding: clamp(16px, 3vw, 24px);
  flex: 1;
  display: flex;
  flex-direction: column;
}
.conv-titulo {
  font-family: var(--fuente-titulo);
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--color-primario);
  margin-bottom: 14px;
  line-height: 1.35;
  font-weight: 700;
}
.conv-meta {
  margin-bottom: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.conv-meta li {
  font-size: 0.83rem;
  color: var(--color-gris-medio);
  display: flex;
  align-items: flex-start;
  gap: 7px;
}
.conv-meta-ico { flex-shrink: 0; }
.conv-desc {
  font-size: 0.88rem;
  color: var(--color-gris-medio);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 20px;
}
.conv-btn { width: 100%; text-align: center; margin-top: auto; }

/* ════════════════════════════════════════════
   NOTICIAS
════════════════════════════════════════════ */
#esenciales {
  background: var(--color-gris-claro);
  color: var(--color-texto);
}
#esenciales .seccion-titulo { color: var(--color-primario); }
#esenciales .seccion-bajada { color: var(--color-gris-medio); }

.esenciales-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 3vw, 28px);
}
.esencial-card {
  background: var(--color-blanco);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 3px 16px rgba(0,0,0,0.09);
  transition: var(--transicion);
  display: flex;
  flex-direction: column;
}
.esencial-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(139,0,0,0.13);
}
.noticia-img-wrap {
  width: 100%;
  height: clamp(160px, 20vw, 210px);
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, var(--color-primario), #4a0000);
  flex-shrink: 0;
}
.noticia-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.esencial-card:hover .noticia-img-wrap img { transform: scale(1.05); }
.noticia-etiqueta {
  position: absolute;
  top: 12px; left: 12px;
  background: var(--color-primario);
  color: var(--color-acento);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 2px;
  z-index: 2;
}
.noticia-cuerpo {
  padding: clamp(16px, 3vw, 22px);
  flex: 1;
  display: flex;
  flex-direction: column;
}
.noticia-fecha {
  font-size: 0.78rem;
  color: var(--color-gris-medio);
  margin-bottom: 10px;
  font-style: italic;
}
.esencial-card h3 {
  font-family: var(--fuente-titulo);
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  color: var(--color-primario);
  margin-bottom: 10px;
  font-weight: 700;
  line-height: 1.4;
}
.esencial-card p {
  color: var(--color-gris-medio);
  font-size: 0.87rem;
  margin-bottom: 18px;
  line-height: 1.65;
  flex: 1;
}
.esencial-card .acciones { display: flex; gap: 10px; flex-wrap: wrap; }

/* ════════════════════════════════════════════
   BLOQUES
════════════════════════════════════════════ */
#bloques { background: var(--color-gris-claro); }
.bloques-header { text-align: center; margin-bottom: 44px; }
.bloques-header .seccion-titulo::after { margin: 8px auto 0; }
.bloques-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(12px, 2.5vw, 20px);
}
.bloque-card {
  background: var(--color-blanco);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  transition: var(--transicion);
}
.bloque-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(139,0,0,0.15);
}
.bloque-img {
  width: 100%;
  height: clamp(100px, 14vw, 140px);
  object-fit: cover;
}
.bloque-img-placeholder {
  width: 100%;
  height: clamp(100px, 14vw, 140px);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primario), #4a0000);
  color: var(--color-acento);
  font-family: var(--fuente-titulo);
  font-size: 2rem;
  font-weight: 700;
}
.bloque-cuerpo { padding: 14px 16px 18px; }
.bloque-num {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--color-acento);
  background: var(--color-primario);
  display: inline-block;
  padding: 2px 9px;
  border-radius: 2px;
  margin-bottom: 8px;
  font-family: var(--fuente-mono);
}
.bloque-nombre {
  font-family: var(--fuente-titulo);
  font-size: clamp(0.85rem, 1.5vw, 1rem);
  color: var(--color-primario);
  margin-bottom: 6px;
  font-weight: 700;
}
.bloque-desc {
  font-size: 0.8rem;
  color: var(--color-gris-medio);
  line-height: 1.5;
}

/* ════════════════════════════════════════════
   FOOTER / CONTACTO
════════════════════════════════════════════ */
#contacto {
  background: var(--color-oscuro);
  color: #fff;
  padding: clamp(50px, 8vw, 80px) 0 0;
}
.contacto-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: clamp(24px, 4vw, 50px);
  padding-bottom: clamp(40px, 6vw, 60px);
}
.contacto-col h3 {
  font-family: var(--fuente-titulo);
  font-size: 1.1rem;
  color: var(--color-acento);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.contacto-logo { height: 48px; margin-bottom: 14px; }
.contacto-col p {
  color: rgba(255,255,255,0.62);
  font-size: 0.88rem;
  line-height: 1.7;
  margin-bottom: 7px;
}
.contacto-col ul li { margin-bottom: 9px; }
.contacto-col ul li a {
  color: rgba(255,255,255,0.62);
  font-size: 0.88rem;
  transition: color var(--transicion);
}
.contacto-col ul li a:hover { color: var(--color-acento); }
.redes-lista { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 12px; }
.red-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  font-size: 1rem;
  transition: var(--transicion);
}
.red-link:hover {
  background: var(--color-primario);
  border-color: var(--color-primario);
  transform: translateY(-3px);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom p { color: rgba(255,255,255,0.38); font-size: 0.78rem; }

/* ════════════════════════════════════════════
   ANIMACIONES
════════════════════════════════════════════ */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(-8px); }
}
.animate-in {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.animate-in.visible { opacity: 1; transform: translateY(0); }

/* ════════════════════════════════════════════
   RESPONSIVE — 100% revisado
════════════════════════════════════════════ */

/* Tablet grande: 1024px */
@media (max-width: 1024px) {
  .bloques-grid      { grid-template-columns: repeat(3, 1fr); }
  .conv-grid         { grid-template-columns: repeat(2, 1fr); }
  .esenciales-grid   { grid-template-columns: repeat(2, 1fr); }
  .contacto-grid     { grid-template-columns: 1fr 1fr; }
  .docs-grid         { grid-template-columns: 1fr 1fr; }
}

/* Tablet: 768px — menú hamburguesa */
@media (max-width: 768px) {
  :root { --nav-alto: 60px; }

  /* Hamburguesa visible */
  .nav-toggle { display: flex; }

  /* Menú desplegable */
  .nav-menu {
    display: none;
    position: fixed;
    top: var(--nav-alto);
    left: 0; right: 0;
    background: rgba(26,26,26,0.98);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 0 20px;
    gap: 0;
    border-top: 2px solid var(--color-primario);
    max-height: calc(100vh - var(--nav-alto));
    overflow-y: auto;
    z-index: 999;
  }
  .nav-menu.abierto { display: flex; }
  .nav-menu a {
    display: block;
    padding: 14px 24px;
    border-radius: 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    font-size: 1rem;
    text-align: left;
  }
  .nav-menu a:hover, .nav-menu a.activo {
    background: rgba(255,255,255,0.07);
    border-bottom-color: rgba(255,255,255,0.06);
  }

  /* Hero */
  #inicio { background-attachment: scroll; }
  .hero-acciones { flex-direction: column; align-items: flex-start; }
  .hero-acciones .btn { width: 100%; text-align: center; }

  /* Grids a 1 columna */
  .docs-grid       { grid-template-columns: 1fr; }
  .conv-grid       { grid-template-columns: 1fr; }
  .esenciales-grid { grid-template-columns: 1fr; }
  .bloques-grid    { grid-template-columns: repeat(2, 1fr); }
  .contacto-grid   { grid-template-columns: 1fr; gap: 28px; }

  /* Doc items apilados */
  .doc-item { flex-direction: column; align-items: flex-start; gap: 10px; }
  .doc-item .btn { width: 100%; text-align: center; }

  /* Footer */
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* Móvil pequeño: 480px */
@media (max-width: 480px) {
  .bloques-grid    { grid-template-columns: repeat(2, 1fr); }
  .conv-grid       { grid-template-columns: 1fr; }
  .esenciales-grid { grid-template-columns: 1fr; }
  .hero-scroll     { display: none; }

  /* Botones full-width en hero */
  .hero-acciones .btn { max-width: 100%; }
}

/* Móvil muy pequeño: 360px */
@media (max-width: 360px) {
  .bloques-grid { grid-template-columns: 1fr; }
  .nav-logo-texto { font-size: 0.78rem; }
}