/* =====================================================================
   ENTORNO GONZAGA - Hoja de estilos
   =====================================================================
   Mobile-first, sin frameworks. Toda personalización pasa por las
   variables CSS de :root.
   ===================================================================== */

:root {
  /* ============ 🎨 CAMBIAR COLOR PRINCIPAL AQUÍ ============ */
  --color-primary: #123F85;        /* Azul profundo - principal */
  --color-primary-dark: #0C2F66;   /* Versión oscura del primario */
  --color-accent: #C11734;         /* Rojo - acentos */
  --color-accent-light: #E84A66;   /* Rojo claro */
  --color-bg: #FAF7F2;             /* Crema - fondo general */
  --color-bg-alt: #F2EDE3;         /* Crema alternativo */
  --color-text: #2A2A2A;           /* Texto principal */
  --color-text-soft: #5A5A5A;      /* Texto secundario */
  --color-border: #E5DED1;         /* Bordes suaves */
  --color-success: #4A8B6F;        /* Verde para éxito */
  --color-error: #B85450;          /* Rojo para errores */

  /* ============ 📝 CAMBIAR TIPOGRAFÍA AQUÍ ============ */
  --font-display: 'Montserrat', -apple-system, sans-serif;
  --font-body: 'Montserrat', -apple-system, sans-serif;

  /* Sombras y radios */
  --sombra-suave: 0 4px 14px rgba(18, 63, 133, 0.06);
  --sombra-media: 0 10px 30px rgba(18, 63, 133, 0.10);
  --sombra-fuerte: 0 20px 50px rgba(18, 63, 133, 0.16);
  --radio: 14px;
  --radio-grande: 22px;

  /* Transiciones */
  --transicion: 220ms cubic-bezier(0.2, 0.7, 0.3, 1);
}

/* =====================================================================
   Reset y base
   ===================================================================== */
*, *::before, *::after { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 0.5em;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

p { margin: 0 0 1em; }

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transicion);
}
a:hover { color: var(--color-primary-dark); }

/* ============ FONDO DECORATIVO ============ */
/* >>> CAMBIAR FONDO AQUÍ <<< */
.fondo-decorativo {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 10% 0%, rgba(18, 63, 133, 0.07) 0%, transparent 45%),
    radial-gradient(circle at 90% 100%, rgba(193, 23, 52, 0.05) 0%, transparent 45%),
    var(--color-bg);
  pointer-events: none;
}

/* =====================================================================
   Layout
   ===================================================================== */
.contenedor {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
}

/* =====================================================================
   HERO (encabezado de la portada)
   ===================================================================== */
.hero {
  padding: 56px 0 32px;
  text-align: center;
  position: relative;
}

.hero-marca {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 8px 18px;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: 100px;
  box-shadow: var(--sombra-suave);
  margin-bottom: 24px;
  font-weight: 600;
  color: var(--color-primary);
  font-size: 14px;
  letter-spacing: 0.02em;
}
.hero-marca img { width: 24px; height: 24px; }

.hero h1 {
  font-size: clamp(28px, 5vw, 44px);
  margin-bottom: 16px;
  color: var(--color-primary);
}

.hero .subtitulo {
  font-size: clamp(15px, 2.2vw, 18px);
  color: var(--color-text-soft);
  max-width: 620px;
  margin: 0 auto 28px;
}

.hero-acciones {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* =====================================================================
   Buscador
   ===================================================================== */
.buscador {
  max-width: 540px;
  margin: 0 auto 36px;
  position: relative;
}

.buscador input {
  width: 100%;
  padding: 14px 18px 14px 46px;
  border: 1px solid var(--color-border);
  border-radius: 100px;
  background: white;
  font-family: inherit;
  font-size: 15px;
  color: var(--color-text);
  box-shadow: var(--sombra-suave);
  transition: border-color var(--transicion), box-shadow var(--transicion);
}
.buscador input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(18, 63, 133, 0.10);
}

.buscador::before {
  content: '🔍';
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 16px;
  opacity: 0.6;
}

/* =====================================================================
   Filtros de categoría
   ===================================================================== */
.categorias {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 36px;
}

.categoria-chip {
  background: white;
  border: 1px solid var(--color-border);
  color: var(--color-text-soft);
  padding: 7px 16px;
  border-radius: 100px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transicion);
}
.categoria-chip:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.categoria-chip.activa {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
  box-shadow: var(--sombra-suave);
}

/* =====================================================================
   GRID DE LINKS
   ===================================================================== */
.grid-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding-bottom: 60px;
}

@media (min-width: 560px) {
  .grid-links { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
  .grid-links { grid-template-columns: repeat(3, 1fr); gap: 20px; }
}
@media (min-width: 1120px) {
  .grid-links { grid-template-columns: repeat(4, 1fr); }
}

.tarjeta-link {
  display: flex;
  flex-direction: column;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radio-grande);
  padding: 22px 22px 20px;
  text-decoration: none;
  color: var(--color-text);
  box-shadow: var(--sombra-suave);
  transition: transform var(--transicion), box-shadow var(--transicion), border-color var(--transicion);
  opacity: 0;
  animation: aparecer 420ms forwards;
  position: relative;
  overflow: hidden;
}

/* Aparición escalonada (CSS calcula el delay por --i) */
.tarjeta-link { animation-delay: calc(var(--i, 0) * 60ms); }

.tarjeta-link::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity var(--transicion);
}

.tarjeta-link:hover {
  transform: translateY(-4px);
  box-shadow: var(--sombra-media);
  border-color: transparent;
}
.tarjeta-link:hover::before { opacity: 1; }

.tarjeta-icono {
  font-size: 30px;
  width: 54px;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-alt);
  border-radius: 14px;
  margin-bottom: 16px;
  transition: background var(--transicion);
}
.tarjeta-link:hover .tarjeta-icono {
  background: rgba(18, 63, 133, 0.08);
}

.tarjeta-categoria {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  margin-bottom: 6px;
}

.tarjeta-titulo {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-primary);
  margin: 0 0 6px;
  line-height: 1.3;
}

.tarjeta-descripcion {
  font-size: 13.5px;
  color: var(--color-text-soft);
  margin: 0 0 18px;
  flex: 1;
}

.tarjeta-flecha {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: auto;
}
.tarjeta-flecha span {
  transition: transform var(--transicion);
}
.tarjeta-link:hover .tarjeta-flecha span {
  transform: translateX(4px);
}

/* =====================================================================
   Estado vacío / sin resultados
   ===================================================================== */
.estado-vacio {
  text-align: center;
  padding: 60px 20px;
  background: white;
  border: 1px dashed var(--color-border);
  border-radius: var(--radio-grande);
  margin: 20px 0 60px;
}
.estado-vacio-icono {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.7;
}
.estado-vacio h3 {
  color: var(--color-primary);
  margin-bottom: 8px;
}
.estado-vacio p {
  color: var(--color-text-soft);
  margin: 0;
}

/* =====================================================================
   BOTONES
   ===================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 100px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  border: 1px solid transparent;
  transition: all var(--transicion);
  white-space: nowrap;
}

.btn-primario {
  background: var(--color-primary);
  color: white;
}
.btn-primario:hover {
  background: var(--color-primary-dark);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--sombra-media);
}

.btn-secundario {
  background: white;
  color: var(--color-primary);
  border-color: var(--color-border);
}
.btn-secundario:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
}

.btn-acento {
  background: var(--color-accent);
  color: white;
}
.btn-acento:hover {
  background: var(--color-accent-light);
  color: white;
}

.btn-peligro {
  background: white;
  color: var(--color-error);
  border-color: var(--color-border);
}
.btn-peligro:hover {
  background: var(--color-error);
  color: white;
  border-color: var(--color-error);
}

.btn-sm {
  padding: 8px 14px;
  font-size: 13px;
}

/* =====================================================================
   FOOTER
   ===================================================================== */
.sitio-footer {
  background: white;
  border-top: 1px solid var(--color-border);
  padding: 28px 0;
  margin-top: auto;
  text-align: center;
}
.sitio-footer .footer-principal {
  color: var(--color-text);
  font-weight: 500;
  margin: 0 0 4px;
  font-size: 14px;
}
.sitio-footer .footer-secundario {
  color: var(--color-text-soft);
  font-size: 13px;
  margin: 0;
}

body { display: flex; flex-direction: column; min-height: 100vh; }
main { flex: 1; }

/* =====================================================================
   PANEL ADMIN
   ===================================================================== */
.admin-topbar {
  background: var(--color-primary);
  color: white;
  padding: 16px 0;
  box-shadow: var(--sombra-media);
}
.admin-topbar .contenedor {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.admin-topbar .marca {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: white;
  text-decoration: none;
}
.admin-topbar .marca img { width: 28px; height: 28px; }
.admin-topbar .acciones { display: flex; gap: 8px; }
.admin-topbar .acciones .btn-secundario {
  background: transparent;
  border-color: rgba(255,255,255,0.3);
  color: white;
}
.admin-topbar .acciones .btn-secundario:hover {
  background: rgba(255,255,255,0.1);
  border-color: white;
}

.admin-encabezado {
  padding: 40px 0 24px;
}
.admin-encabezado h1 {
  font-size: clamp(24px, 4vw, 32px);
  margin-bottom: 8px;
}
.admin-encabezado p {
  color: var(--color-text-soft);
  margin: 0;
}

.panel {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radio-grande);
  padding: 28px;
  margin-bottom: 24px;
  box-shadow: var(--sombra-suave);
}
.panel h2 {
  font-size: 18px;
  margin-bottom: 16px;
}

/* =====================================================================
   TABLA
   ===================================================================== */
.tabla-wrap {
  overflow-x: auto;
  border-radius: var(--radio);
  border: 1px solid var(--color-border);
}
.tabla {
  width: 100%;
  border-collapse: collapse;
  background: white;
  font-size: 14px;
}
.tabla th, .tabla td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}
.tabla th {
  background: var(--color-bg-alt);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.tabla tbody tr:last-child td { border-bottom: 0; }
.tabla tbody tr:hover { background: var(--color-bg); }
.tabla .acciones-celda {
  display: flex;
  gap: 6px;
  flex-wrap: nowrap;
}
.tabla .url-celda {
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12px;
  color: var(--color-text-soft);
}
.tabla .icono-celda { font-size: 20px; }
.tabla .estado-pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.estado-pill.activo {
  background: rgba(74, 139, 111, 0.12);
  color: var(--color-success);
}
.estado-pill.inactivo {
  background: rgba(184, 84, 80, 0.10);
  color: var(--color-error);
}

/* =====================================================================
   FORMULARIOS
   ===================================================================== */
.form-grupo {
  margin-bottom: 18px;
}
.form-grupo label {
  display: block;
  font-weight: 600;
  font-size: 13px;
  color: var(--color-text);
  margin-bottom: 6px;
}
.form-grupo .hint {
  display: block;
  font-size: 12px;
  color: var(--color-text-soft);
  margin-top: 4px;
}
.form-control {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: white;
  font-family: inherit;
  font-size: 14px;
  color: var(--color-text);
  transition: border-color var(--transicion), box-shadow var(--transicion);
}
.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(18, 63, 133, 0.08);
}
textarea.form-control { min-height: 80px; resize: vertical; }

.form-fila {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 640px) {
  .form-fila.dos { grid-template-columns: 1fr 1fr; }
  .form-fila.tres { grid-template-columns: 2fr 1fr 1fr; }
}

.form-acciones {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.checkbox {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 14px;
}
.checkbox input { width: 18px; height: 18px; cursor: pointer; }

/* =====================================================================
   MENSAJES (flash / error)
   ===================================================================== */
.mensaje {
  padding: 14px 18px;
  border-radius: var(--radio);
  margin-bottom: 18px;
  font-size: 14px;
  border: 1px solid;
  animation: aparecer 300ms ease;
}
.mensaje.exito {
  background: rgba(74, 139, 111, 0.08);
  border-color: rgba(74, 139, 111, 0.3);
  color: #2f6850;
}
.mensaje.error {
  background: rgba(184, 84, 80, 0.08);
  border-color: rgba(184, 84, 80, 0.3);
  color: var(--color-error);
}
.mensaje.info {
  background: rgba(18, 63, 133, 0.07);
  border-color: rgba(18, 63, 133, 0.25);
  color: var(--color-primary-dark);
}

/* =====================================================================
   LOGIN
   ===================================================================== */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}
.login-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radio-grande);
  padding: 36px 32px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--sombra-fuerte);
  animation: aparecer 400ms ease;
}
.login-card .marca {
  text-align: center;
  margin-bottom: 24px;
}
.login-card .marca img { width: 56px; height: 56px; }
.login-card h1 {
  text-align: center;
  font-size: 22px;
  margin-bottom: 6px;
}
.login-card .subtitulo {
  text-align: center;
  color: var(--color-text-soft);
  font-size: 14px;
  margin-bottom: 24px;
}
.login-card .btn { width: 100%; }
.login-card .volver {
  display: block;
  text-align: center;
  margin-top: 18px;
  font-size: 13px;
  color: var(--color-text-soft);
}

/* =====================================================================
   ANIMACIONES
   ===================================================================== */
@keyframes aparecer {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* =====================================================================
   RESPONSIVE EXTRA (≤600px)
   ===================================================================== */
@media (max-width: 600px) {
  .hero { padding: 36px 0 20px; }
  .panel { padding: 20px; }
  .admin-topbar .marca { font-size: 14px; }
  .form-acciones { width: 100%; }
  .form-acciones .btn { flex: 1; }
}