/* Sistema de Certificados - Cruz Roja Peruana */
/* Estilos principales optimizados */

/* Variables CSS para consistencia */
:root {
  --cruz-roja-red: #E31837;
  --background-color: #f5f5f5;
  --white: #ffffff;
  --black: #000000;
  --gray-light: #ccc;
  --shadow-light: rgba(0,0,0,0.1);
  --shadow-medium: rgba(0,0,0,0.15);
  --shadow-dark: rgba(0,0,0,0.5);
  --transition-fast: 0.3s ease;
}

/* Estilos base */
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  background-color: var(--background-color);
}

.cruz-roja-red {
  background-color: var(--cruz-roja-red);
}

.cruz-roja-logo {
  height: 40px;
}

/* Layout principal */
.sidebar {
  height: calc(100vh - 64px);
  transition: transform var(--transition-fast);
}

.table-container {
  overflow-x: auto;
}

/* Estilos de login */
.login-container {
  min-height: 100vh;
  background-image: url('../assets/images/fondo.jpg');
  background-size: cover;
  background-position: center;
}

.login-overlay {
  background-color: rgba(0,0,0,0.6);
  min-height: 100vh;
}

.login-box {
  background-color: rgba(255,255,255,0.95);
  border-radius: 8px;
  box-shadow: 0 10px 25px var(--shadow-dark);
}

/* Zona de arrastrar y soltar */
.drag-drop-zone {
  border: 2px dashed var(--gray-light);
  border-radius: 5px;
  padding: 25px;
  text-align: center;
  transition: all var(--transition-fast);
}

.drag-drop-zone:hover, 
.drag-drop-zone.active {
  border-color: var(--cruz-roja-red);
  background-color: rgba(227, 24, 55, 0.05);
}

/* Animaciones y transiciones */
.btn, .card, .modal, .sidebar {
  transition: all var(--transition-fast);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--shadow-medium);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--shadow-light);
}

@keyframes fadeIn {
  from { 
    opacity: 0; 
    transform: translateY(10px); 
  }
  to { 
    opacity: 1; 
    transform: translateY(0); 
  }
}

.fade-in {
  animation: fadeIn var(--transition-fast) ease-out;
}

/* Navegación lateral y elementos activos */
.nav-item {
  border-radius: 0.5rem;
}

.nav-item.active,
.nav-item[aria-current="page"],
.nav-item.bg-red-50 {
  background-color: rgba(227, 24, 55, 0.08);
  color: #991b1b; /* red-800 */
}

.nav-item:hover {
  background-color: rgba(0,0,0,0.04);
}

/* Inputs y selects: estados de focus consistentes */
input[type="text"],
input[type="email"],
input[type="number"],
input[type="password"],
input[type="date"],
input[type="tel"],
select,
textarea {
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--cruz-roja-red);
  box-shadow: 0 0 0 3px rgba(227, 24, 55, 0.15);
}

/* Tablas: cabecera pegajosa y estilo sutil */
.table-container {
  overflow-x: auto;
}

.table-container thead th {
  position: sticky;
  top: 0;
  background: #f9fafb; /* gray-50 */
  z-index: 1;
}

.table-container tbody tr:hover {
  background-color: #fafafa;
}

/* Botones de color comunes (por si se usan sin Tailwind) */
.btn-red {
  background: var(--cruz-roja-red);
  color: var(--white);
}

.btn-red:hover {
  filter: brightness(0.95);
}

/* Botones de acción en tabla de participantes (iconos con color visible) */
.btn-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  padding: 0 0.5rem;
  border: 1px solid transparent;
  border-radius: 0.375rem;
  cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s;
}
.btn-action-blue { background-color: #dbeafe; color: #1d4ed8; border-color: #93c5fd; }
.btn-action-blue:hover { background-color: #bfdbfe; }
.btn-action-green { background-color: #d1fae5; color: #047857; border-color: #6ee7b7; }
.btn-action-green:hover { background-color: #a7f3d0; }
.btn-action-indigo { background-color: #e0e7ff; color: #3730a3; border-color: #a5b4fc; }
.btn-action-indigo:hover { background-color: #c7d2fe; }
.btn-action-red { background-color: #fee2e2; color: #b91c1c; border-color: #fca5a5; }
.btn-action-red:hover { background-color: #fecaca; }
.btn-action-purple { background-color: #ede9fe; color: #5b21b6; border-color: #c4b5fd; }
.btn-action-purple:hover { background-color: #ddd6fe; }
.btn-action-teal { background-color: #ccfbf1; color: #0f766e; border-color: #5eead4; }
.btn-action-teal:hover { background-color: #99f6e4; }

/* Botones de la página Participantes (siempre con color, no dependen de Tailwind) */
.btn-participants {
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  font-weight: 500;
  color: #fff;
  border: none;
  cursor: pointer;
  transition: background-color 0.15s, filter 0.15s;
}
.btn-participants:hover { filter: brightness(1.05); }
.btn-import-csv   { background-color: #2563eb; }
.btn-import-csv:hover   { background-color: #1d4ed8; }
.btn-import-excel { background-color: #059669; }
.btn-import-excel:hover { background-color: #047857; }
.btn-export-excel { background-color: #ea580c; }
.btn-export-excel:hover { background-color: #c2410c; }
.btn-download-template { background-color: #7c3aed; color: #fff; border: none; }
.btn-download-template:hover { background-color: #6d28d9; color: #fff; }
.btn-add-participant { background-color: #dc2626; }
.btn-add-participant:hover { background-color: #b91c1c; }
.btn-generate-certs { background-color: #059669; }
.btn-generate-certs:hover { background-color: #047857; }

/* Participantes: filas de cursos más compactas y sin desbordes */
.participant-main-name,
.participant-main-email {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.participant-course-row {
  display: grid;
  grid-template-columns: auto minmax(180px, 1fr) auto auto auto;
  align-items: center;
  gap: 0.5rem;
}

.participant-course-name {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.participant-course-date {
  white-space: nowrap;
}

.participant-course-actions {
  display: inline-flex;
  gap: 0.25rem;
  justify-self: end;
}

.participant-course-actions-compact {
  gap: 0;
}

/* Responsive Design - Tablet y móvil */
@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    z-index: 50;
    transform: translateX(-100%);
    height: 100vh;
  }
  
  .sidebar.mobile-open {
    transform: translateX(0);
  }
  
  .main-content {
    margin-left: 0 !important;
    padding: 1rem;
    width: 100% !important;
  }
  
  .dashboard-grid {
    grid-template-columns: 1fr !important;
    gap: 1rem;
  }
  
  .quick-actions-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.75rem;
  }
  
  .table-container {
    -webkit-overflow-scrolling: touch;
  }
  
  .table-container table {
    min-width: 600px;
  }
  
  .modal-content {
    margin: 1rem;
    max-height: calc(100vh - 2rem);
    overflow-y: auto;
    max-width: calc(100vw - 2rem);
  }
  
  .certificate-preview {
    transform: scale(0.7);
    transform-origin: top left;
    width: 142.86%;
  }
  
  .search-filter-container {
    flex-direction: column;
    gap: 0.75rem;
  }
  
  .search-filter-container > div {
    width: 100%;
  }
  
  .btn-group {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .btn-group .btn {
    width: 100%;
  }
  
  .stats-card h3 {
    font-size: 1.5rem;
  }
  
  .stats-card p {
    font-size: 0.875rem;
  }
  
  /* Botón de menú móvil */
  .mobile-menu-btn {
    display: block;
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 60;
    background: var(--cruz-roja-red);
    color: var(--white);
    border: none;
    padding: 0.75rem;
    border-radius: 0.5rem;
    box-shadow: 0 2px 10px var(--shadow-light);
  }
  
  .mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 40;
  }
  
  .mobile-overlay.active {
    display: block;
  }
}

/* Desktop */
@media (min-width: 769px) {
  .mobile-menu-btn {
    display: none;
  }
}

/* Móvil pequeño */
@media (max-width: 480px) {
  .quick-actions-grid {
    grid-template-columns: 1fr !important;
  }
  
  .modal-content {
    margin: 0.5rem;
    max-height: calc(100vh - 1rem);
    max-width: calc(100vw - 1rem);
  }
  
  .certificate-preview {
    transform: scale(0.5);
    width: 200%;
  }
  
  .table-container table {
    font-size: 0.875rem;
  }
  
  .btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
  }
  
  .stats-card {
    padding: 1rem;
  }
  
  .stats-card h3 {
    font-size: 1.25rem;
  }
  
  .mobile-menu-btn {
    padding: 0.5rem;
    top: 0.5rem;
    left: 0.5rem;
  }
}

/* Editor de certificados */
#certificate-elements .cert-element {
  position: absolute;
  cursor: move;
  padding: 4px 8px;
  min-width: 20px;
  min-height: 20px;
  white-space: nowrap;
  user-select: none;
  border: 2px solid transparent;
  border-radius: 4px;
  transition: border-color 0.15s, background 0.15s;
}
#certificate-elements .cert-element:hover {
  border-color: rgba(219, 20, 61, 0.5);
  background: rgba(255,255,255,0.3);
}
#certificate-elements .cert-element.selected {
  border-color: #DB143D;
  background: rgba(255,255,255,0.5);
  z-index: 10;
}
#certificate-elements .cert-element.dragging {
  opacity: 0.9;
  z-index: 100;
}