/**
 * CastelBoard - Estilos Institucionales Soberanos
 * Colegio Castelgandolfo - Ing. Pablo Elías Avendaño Miranda
 * Estética afilada (sharp edges), profesional y accesible
 */

:root {
  --cb-navy: #1E3A5F;
  --cb-navy-dark: #12263F;
  --cb-navy-light: #2C4C74;
  --cb-green: #2E6B3E;
  --cb-green-dark: #1F4D2B;
  --cb-green-light: #3D8B53;
  --cb-bg: #F8FAFC;
  --cb-card-bg: #FFFFFF;
  --cb-border: #CBD5E1;
  --cb-border-dark: #94A3B8;
  --cb-text: #0F172A;
  --cb-text-muted: #64748B;
  --cb-danger: #DC2626;
  --cb-warning: #D97706;
  --cb-info: #0284C7;
  --cb-radius: 3px; /* Bordes rectos y afilados */
}

/* Clases de Utilidad de Colores Institucionales */
.bg-navy {
  background-color: var(--cb-navy) !important;
  color: #FFFFFF !important;
}

.bg-navy-dark {
  background-color: var(--cb-navy-dark) !important;
  color: #FFFFFF !important;
}

.bg-green-inst {
  background-color: var(--cb-green) !important;
  color: #FFFFFF !important;
}

.text-navy {
  color: var(--cb-navy) !important;
}

.text-navy-dark {
  color: var(--cb-navy-dark) !important;
}

.text-green-inst {
  color: var(--cb-green) !important;
}

/* Base y Reset - Atmósfera Cósmica Morado Oscuro (Inspirado en jack.drakescraft.cl) */
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: #070512;
  background-image: 
    radial-gradient(circle at 50% 10%, #1e103c 0%, #0d0822 45%, #05030c 100%);
  color: var(--cb-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

/* Canvas 3D Interactivo y Efectos de Fondo Estilo jack.drakescraft.cl */
#bg-canvas-3d {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: -3;
  pointer-events: none;
}

.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(168, 85, 247, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.06) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(circle at 50% 35%, black 35%, transparent 85%);
  -webkit-mask-image: radial-gradient(circle at 50% 35%, black 35%, transparent 85%);
}

.radial-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  z-index: -2;
  opacity: 0.45;
}

.glow-top {
  width: 650px;
  height: 650px;
  top: -190px;
  right: -120px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.32), rgba(124, 58, 237, 0.18), transparent 70%);
}

.glow-bottom {
  width: 750px;
  height: 750px;
  bottom: -240px;
  left: -190px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.28), rgba(139, 92, 246, 0.16), transparent 70%);
}

.glow-center {
  width: 700px;
  height: 700px;
  top: 35%;
  left: 50%;
  transform: translate(-50%, -35%);
  background: radial-gradient(circle, rgba(236, 72, 153, 0.14), rgba(34, 211, 238, 0.10), transparent 70%);
}

/* Forzar bordes afilados en toda la UI */
.card, .btn, .form-control, .form-select, .modal-content, .dropdown-menu, .alert, .badge, .progress {
  border-radius: var(--cb-radius) !important;
}

/* Navbar Institucional */
.cb-navbar {
  background: linear-gradient(135deg, #070412 0%, #150a2e 50%, #200f45 100%) !important;
  border-bottom: 3px solid var(--cb-green) !important;
  box-shadow: 0 4px 25px rgba(0, 0, 0, 0.5), 0 0 20px rgba(147, 51, 234, 0.25) !important;
  padding: 0.6rem 1rem;
}

.cb-navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #FFFFFF !important;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.cb-logo-img {
  height: 48px;
  width: auto;
  background: #FFFFFF;
  padding: 4px 6px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.25);
  display: inline-block;
  object-fit: contain;
}

.cb-nav-title {
  line-height: 1.15;
}

.cb-nav-title .title-main {
  font-size: 1.15rem;
  display: block;
}

.cb-nav-title .title-sub {
  font-size: 0.75rem;
  color: #CBD5E1;
  font-weight: 400;
  display: block;
}

/* Banner de Conexión de Red */
.cb-network-banner {
  font-size: 0.78rem;
  padding: 0.35rem 1rem;
  border-bottom: 1px solid rgba(0,0,0,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.cb-network-banner.lan-mode {
  background-color: #ECFDF5;
  color: #065F46;
  border-color: #A7F3D0;
}

.cb-network-banner.remote-mode {
  background-color: #FFFBEB;
  color: #92400E;
  border-color: #FDE68A;
}

.cb-network-banner.cellular-mode {
  background-color: #FFFBEB;
  color: #B45309;
  border-color: #FDE68A;
}

.cb-network-banner.offline-mode {
  background-color: #FEF2F2;
  color: #991B1B;
  border-color: #FECACA;
}

/* Banner Flotante PWA para Celulares */
.pwa-mobile-banner {
  position: fixed;
  bottom: 16px;
  left: 14px;
  right: 14px;
  max-width: 480px;
  margin: 0 auto;
  z-index: 1060;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(2, 132, 199, 0.35);
  box-shadow: 0 12px 35px -5px rgba(15, 23, 42, 0.22);
  border-radius: 8px !important;
  padding: 12px 14px;
  animation: slideUpPwa 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUpPwa {
  from { transform: translateY(100px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.pwa-mobile-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  flex-shrink: 0;
}

/* Tarjetas y Contenedores con Estilo Glassmorphism Cósmico */
.cb-card, .portal-card, .legal-container, .error-card {
  background-color: rgba(255, 255, 255, 0.96) !important;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(192, 132, 252, 0.35) !important;
  box-shadow: 0 15px 35px -5px rgba(0, 0, 0, 0.45), 0 0 25px rgba(147, 51, 234, 0.12) !important;
  margin-bottom: 1.25rem;
}

.cb-card-header {
  background-color: #F1F5F9;
  border-bottom: 1px solid var(--cb-border);
  padding: 0.75rem 1.25rem;
  font-weight: 600;
  color: var(--cb-navy);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cb-card-header.bg-navy {
  background-color: var(--cb-navy) !important;
  color: #FFFFFF !important;
  border-bottom: 3px solid var(--cb-green) !important;
}

.cb-card-header.bg-navy h5,
.cb-card-header.bg-navy .modal-title {
  color: #FFFFFF !important;
}

.cb-card-header.bg-navy small {
  color: #E2E8F0 !important;
}

/* Botones Institucionales */
.btn-cb-primary {
  background-color: var(--cb-navy);
  border-color: var(--cb-navy-dark);
  color: #FFFFFF;
  font-weight: 500;
}

.btn-cb-primary:hover, .btn-cb-primary:focus {
  background-color: var(--cb-navy-dark);
  border-color: #0A192F;
  color: #FFFFFF;
}

.btn-cb-success {
  background-color: var(--cb-green);
  border-color: var(--cb-green-dark);
  color: #FFFFFF;
  font-weight: 500;
}

.btn-cb-success:hover, .btn-cb-success:focus {
  background-color: var(--cb-green-dark);
  border-color: #14361E;
  color: #FFFFFF;
}

/* Zona Drag & Drop para Alumnos */
.cb-dropzone {
  border: 2px dashed var(--cb-border-dark);
  background-color: #F8FAFC;
  padding: 2rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.cb-dropzone:hover, .cb-dropzone.dragover {
  border-color: var(--cb-navy);
  background-color: #EFF6FF;
}

.cb-dropzone-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 0.75rem;
  color: var(--cb-navy);
}

/* Casillero: Grilla de Asignaturas */
.subject-folder-card {
  border: 1px solid var(--cb-border);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  cursor: pointer;
}

.subject-folder-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 6px rgba(0,0,0,0.06);
  border-color: var(--cb-navy);
}

.subject-folder-card.active {
  border-left: 4px solid var(--cb-navy);
  background-color: #F8FAFC;
}

/* Tabla de Archivos Entregados */
.cb-table {
  font-size: 0.88rem;
  margin-bottom: 0;
}

.cb-table th {
  background-color: #F1F5F9;
  color: var(--cb-navy);
  font-weight: 600;
  border-bottom: 1px solid var(--cb-border);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.03em;
}

.cb-table td {
  vertical-align: middle;
  border-color: #E2E8F0;
}

/* Hash SHA-256 Pill */
.hash-pill {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.72rem;
  background-color: #F1F5F9;
  color: #475569;
  padding: 0.2rem 0.4rem;
  border: 1px solid #E2E8F0;
  max-width: 130px;
  display: inline-block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Footer Soberano */
.cb-footer {
  margin-top: auto;
  background-color: rgba(7, 5, 18, 0.92) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid rgba(147, 51, 234, 0.25) !important;
  padding: 1.25rem 1rem;
  font-size: 0.82rem;
  color: #94A3B8 !important;
}

.cb-footer strong {
  color: #C084FC !important;
}

.cb-footer a, .cb-footer span, .cb-footer p {
  color: #94A3B8 !important;
}

/* Modales y Formularios */
.form-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--cb-navy);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

/* Responsive para Celulares y Tablets */
@media (max-width: 768px) {
  .cb-logo-img {
    height: 38px;
    padding: 3px 5px;
  }
  .cb-nav-title .title-main {
    font-size: 1rem;
  }
  .cb-nav-title .title-sub {
    font-size: 0.68rem;
  }
  .cb-dropzone {
    padding: 1.25rem 1rem;
  }
  .cb-card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

/* Optimización Específica para Teléfonos Móviles (< 576px) */
@media (max-width: 576px) {
  /* Evitar auto-zoom molesto en Safari iOS y Chrome Android al enfocar campos */
  input, select, textarea, .form-control, .form-select {
    font-size: 16px !important;
  }

  /* Altura táctil mínima ergonómica (Human Interface Guidelines) */
  .btn, .form-control, .form-select {
    min-height: 44px;
  }

  .btn-sm {
    min-height: 36px;
    font-size: 0.8rem;
    padding: 6px 10px;
  }

  /* Márgenes y padding amigables para pantalla táctil */
  main.container-fluid {
    padding-left: 10px !important;
    padding-right: 10px !important;
    padding-top: 12px !important;
  }

  .cb-card {
    margin-bottom: 1rem;
  }

  .cb-card .card-body {
    padding: 1rem !important;
  }

  /* Adaptación de tablas en móvil con scroll suave */
  .table-responsive {
    border: 1px solid var(--cb-border);
    -webkit-overflow-scrolling: touch;
    border-radius: var(--cb-radius);
  }

  /* Navbar compacta para celular */
  .cb-navbar {
    padding: 0.4rem 0.6rem;
  }
  .cb-navbar .btn {
    min-height: 34px;
    padding: 4px 8px;
    font-size: 0.75rem;
  }

  /* Muro Padlet en columna única en celular */
  .padlet-grid {
    grid-template-columns: 1fr !important;
  }

  /* Modal en celular con márgenes mínimos */
  .modal-dialog {
    margin: 0.5rem;
  }
}

/* Estilos para el Manual, Guías y Preguntas Frecuentes */
.btn-help-nav {
  background-color: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: #FFFFFF !important;
  font-weight: 600;
  transition: all 0.2s ease;
}
.btn-help-nav:hover {
  background-color: #FFFFFF;
  color: var(--cb-navy) !important;
}

.help-badge-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background-color: var(--cb-navy);
  color: #FFFFFF;
  font-weight: 700;
  font-size: 0.82rem;
  border-radius: 50% !important;
  flex-shrink: 0;
}

.guide-step-card {
  border: 1px solid var(--cb-border);
  background-color: #FFFFFF;
  padding: 1rem;
  height: 100%;
  border-top: 3px solid var(--cb-navy);
}

.guide-step-card.success-border {
  border-top-color: var(--cb-green);
}

.guide-step-card.warning-border {
  border-top-color: var(--cb-warning);
}

.guide-step-card.info-border {
  border-top-color: var(--cb-info);
}

.sofia-vs-box {
  border: 1px solid var(--cb-border);
  padding: 1rem;
  background-color: #FFFFFF;
}

.faq-card {
  border: 1px solid var(--cb-border);
  background-color: #FFFFFF;
  margin-bottom: 0.75rem;
  border-left: 4px solid var(--cb-navy) !important;
}

/* ========================================================================= */
/* ESTILOS PARA MURO DIGITAL INTERACTIVO ESTILO PADLET                       */
/* ========================================================================= */
.padlet-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1.25rem;
  align-items: start;
}

.padlet-card {
  border-radius: var(--cb-radius) !important;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.padlet-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.12);
}

.padlet-card.is-destacado {
  border: 2px solid #F59E0B !important;
  position: relative;
}

.padlet-card.is-pendiente {
  border: 2px dashed #DC2626 !important;
  opacity: 0.85;
}

/* Colores Post-It Estilo Padlet */
.post-color-yellow { background-color: #FEF9C3; border: 1px solid #FDE047; }
.post-color-blue   { background-color: #E0F2FE; border: 1px solid #BAE6FD; }
.post-color-green  { background-color: #DCFCE7; border: 1px solid #BBF7D0; }
.post-color-pink   { background-color: #FCE7F3; border: 1px solid #FBCFE8; }
.post-color-purple { background-color: #F3E8FF; border: 1px solid #E9D5FF; }
.post-color-white  { background-color: #FFFFFF; border: 1px solid #E2E8F0; }

.padlet-card-header {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.padlet-avatar {
  width: 32px;
  height: 32px;
  background-color: var(--cb-navy);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.75rem;
  border-radius: 50% !important;
  flex-shrink: 0;
}

.padlet-card-body {
  padding: 1rem;
  flex-grow: 1;
}

.padlet-tag-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 2px 7px;
  background-color: rgba(0, 0, 0, 0.08);
  color: var(--cb-navy);
  border-radius: 10px !important;
}

.padlet-file-box {
  background-color: rgba(0, 0, 0, 0.04);
  border: 1px solid rgba(0, 0, 0, 0.08);
  padding: 0.6rem;
  border-radius: var(--cb-radius) !important;
  margin-top: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.padlet-img-preview {
  width: 100%;
  max-height: 180px;
  object-fit: cover;
  border-radius: var(--cb-radius) !important;
  margin-top: 0.5rem;
  cursor: pointer;
  border: 1px solid rgba(0, 0, 0, 0.1);
  transition: opacity 0.15s ease;
}

.padlet-img-preview:hover {
  opacity: 0.9;
}

.padlet-card-footer {
  padding: 0.6rem 1rem;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  background-color: rgba(255, 255, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Barra de Reacciones Educativas */
.reaction-btn {
  background: none;
  border: 1px solid rgba(0, 0, 0, 0.1);
  background-color: #FFFFFF;
  border-radius: 12px !important;
  padding: 2px 8px;
  font-size: 0.75rem;
  cursor: pointer;
  transition: transform 0.1s, background-color 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

.reaction-btn:hover {
  transform: scale(1.08);
  background-color: #F1F5F9;
}

.reaction-btn.active {
  background-color: #E2E8F0;
  border-color: var(--cb-navy);
  font-weight: 700;
}

/* Visor Multimedia Modal */
.preview-modal-body {
  min-height: 400px;
  max-height: 75vh;
  overflow-y: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #0F172A;
  padding: 1rem;
}

.preview-modal-body img {
  max-width: 100%;
  max-height: 70vh;
  object-fit: contain;
}

.preview-modal-body iframe {
  width: 100%;
  height: 70vh;
  border: none;
  background-color: #FFFFFF;
}

.preview-code-block {
  width: 100%;
  max-height: 70vh;
  overflow: auto;
  background-color: #1E293B;
  color: #F8FAFC;
  padding: 1rem;
  font-family: monospace;
  font-size: 0.85rem;
}