/* ============================================
   REAL CHESS - Panel Administrativo
   ============================================ */

:root {
  --negro:  #0d0d0d;
  --blanco: #ffffff;
  --acento: #e0e0e0;
  --acento2: #ffffff;
  --gris:   #1e1e1e;
  --gris2:  #2a2a2a;
  --borde:  #333;
  --texto:  #e0e0e0;
  --gris3:  #888;
  --gris4:  #b0b0b0;
  --radio:  8px;
  --trans:  0.25s ease;
  --sidebar-w: 240px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', system-ui, sans-serif; background: #111; color: var(--texto); min-height: 100vh; }
a { color: var(--acento); text-decoration: none; }

/* ---- LOGIN ---- */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: radial-gradient(ellipse at center, #1a1008 0%, #0d0d0d 70%); }
.login-card { background: var(--gris); border: 1px solid var(--borde); border-radius: 12px; padding: 48px 40px; width: 100%; max-width: 400px; }
.login-logo { text-align: center; margin-bottom: 32px; }
.login-logo .icon { font-size: 3rem; }
.login-logo h1 { font-size: 1.8rem; font-weight: 800; color: var(--blanco); letter-spacing: 2px; }
.login-logo p { color: var(--gris3); font-size: 0.85rem; }
.login-logo-img { height: 72px; width: auto; object-fit: contain; margin-bottom: 12px; }
.login-card .form-group { margin-bottom: 18px; }
.login-card label { display: block; font-size: 0.85rem; color: var(--gris3); margin-bottom: 6px; }
.login-card input { width: 100%; background: var(--gris2); border: 1px solid var(--borde); color: var(--texto); padding: 12px 16px; border-radius: var(--radio); font-size: 0.95rem; outline: none; transition: border-color var(--trans); }
.login-card input:focus { border-color: var(--acento); }
.btn-login { width: 100%; padding: 14px; background: var(--blanco); color: #000; font-weight: 700; font-size: 1rem; border: none; border-radius: var(--radio); cursor: pointer; transition: all var(--trans); margin-top: 8px; }
.btn-login:hover { background: var(--acento); }
.login-error { color: #e74c3c; font-size: 0.85rem; text-align: center; margin-top: 12px; display: none; }

/* ---- LAYOUT ADMIN ---- */
.admin-layout { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w); background: #252525; border-right: 1px solid #444;
  display: flex; flex-direction: column; position: fixed; top: 0; left: 0; bottom: 0; z-index: 100;
}
.sidebar-header { padding: 24px 20px; border-bottom: 1px solid var(--borde); }
.sidebar-header .brand { font-size: 1.2rem; font-weight: 800; color: var(--blanco); letter-spacing: 2px; }
.sidebar-logo { height: 44px; width: auto; max-width: 180px; object-fit: contain; display: block; }
.sidebar-header .sub { font-size: 0.7rem; color: #aaa; text-transform: uppercase; letter-spacing: 1px; margin-top: 6px; }
.sidebar-nav { flex: 1; padding: 16px 0; overflow-y: auto; }
.nav-section { padding: 8px 20px 4px; font-size: 0.7rem; color: #aaa; text-transform: uppercase; letter-spacing: 1px; }
.sidebar-nav a {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 20px; color: #ccc; font-size: 0.9rem;
  transition: all var(--trans); border-left: 3px solid transparent;
}
.sidebar-nav a:hover, .sidebar-nav a.active { color: #fff; background: rgba(255,255,255,0.1); border-left-color: var(--blanco); }
.sidebar-nav a .nav-icon { font-size: 1.1rem; width: 20px; text-align: center; }
.sidebar-footer { padding: 16px 20px; border-top: 1px solid var(--borde); }
.sidebar-footer a { display: flex; align-items: center; gap: 10px; color: #bbb; font-size: 0.85rem; transition: color var(--trans); }
.sidebar-footer a:hover { color: #e74c3c; }

.admin-main { margin-left: var(--sidebar-w); flex: 1; display: flex; flex-direction: column; }
.admin-topbar { background: var(--gris); border-bottom: 1px solid var(--borde); padding: 16px 32px; display: flex; align-items: center; justify-content: space-between; }
.admin-topbar h2 { font-size: 1.2rem; font-weight: 700; color: var(--texto); }
.admin-user { display: flex; align-items: center; gap: 10px; font-size: 0.9rem; color: var(--gris3); }
.admin-content { padding: 32px; flex: 1; }

/* ---- STATS CARDS ---- */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 20px; margin-bottom: 32px; }
.stat-card { background: var(--gris); border: 1px solid var(--borde); border-radius: var(--radio); padding: 24px; }
.stat-card .stat-icon { font-size: 2rem; margin-bottom: 12px; }
.stat-card .stat-num { font-size: 2rem; font-weight: 800; color: var(--blanco); }
.stat-card .stat-label { font-size: 0.85rem; color: var(--gris3); margin-top: 4px; }

/* ---- TABLA ---- */
.table-card { background: var(--gris); border: 1px solid var(--borde); border-radius: var(--radio); overflow: hidden; }
.table-header { padding: 20px 24px; border-bottom: 1px solid var(--borde); display: flex; align-items: center; justify-content: space-between; }
.table-header h3 { font-size: 1rem; font-weight: 700; color: var(--texto); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { background: var(--gris2); padding: 12px 16px; text-align: left; font-size: 0.8rem; color: var(--gris3); text-transform: uppercase; letter-spacing: 1px; white-space: nowrap; position: relative; }
td { padding: 14px 16px; border-bottom: 1px solid var(--borde); font-size: 0.9rem; vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.02); }
tbody tr:nth-child(even) td { background: rgba(255,255,255,0.015); }
tbody tr:nth-child(even):hover td { background: rgba(255,255,255,0.035); }

th[data-sort] { cursor: pointer; user-select: none; }
th[data-sort]::after { content: ''; display: inline-block; width: 0; height: 0; margin-left: 6px; vertical-align: middle; border-left: 4px solid transparent; border-right: 4px solid transparent; opacity: 0.35; }
th[data-sort].sort-asc::after { border-bottom: 5px solid var(--texto); opacity: 1; }
th[data-sort].sort-desc::after { border-top: 5px solid var(--texto); opacity: 1; }
.th-resize-handle { position: absolute; top: 0; right: 0; width: 6px; height: 100%; cursor: col-resize; }
.th-resize-handle:hover, .th-resize-handle.resizing { background: rgba(255,255,255,0.15); }

.row-link { color: var(--texto); font-weight: 600; cursor: pointer; }
.row-link:hover { color: var(--blanco); }

.row-actions { display: flex; gap: 6px; }
.btn-icon { display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; background: var(--gris2); border: 1px solid var(--borde); color: var(--texto); border-radius: 6px; cursor: pointer; transition: all var(--trans); padding: 0; }
.btn-icon:hover { border-color: var(--blanco); color: var(--blanco); }
.btn-icon-danger:hover { border-color: #e74c3c; color: #e74c3c; }

.table-pagination { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 20px; border-top: 1px solid var(--borde); flex-wrap: wrap; }
.table-pagination .paginacion-info { font-size: 0.82rem; color: var(--gris3); }
.table-pagination .paginacion-paginas { display: flex; gap: 6px; flex-wrap: wrap; }
.table-pagination button { background: var(--gris2); border: 1px solid var(--borde); color: var(--texto); border-radius: 6px; padding: 6px 12px; font-size: 0.82rem; cursor: pointer; transition: all var(--trans); }
.table-pagination button:hover:not(:disabled) { border-color: var(--blanco); color: var(--blanco); }
.table-pagination button.activa { background: var(--blanco); color: #000; font-weight: 700; }
.table-pagination button:disabled { opacity: 0.35; cursor: default; }

.pendiente-archivo { display: flex; align-items: center; gap: 10px; background: var(--gris); border: 1px solid var(--borde); border-radius: 6px; padding: 6px 10px; margin-bottom: 6px; }
.pendiente-archivo img { width: 36px; height: 36px; object-fit: cover; border-radius: 4px; flex-shrink: 0; }
.pendiente-archivo .pendiente-nombre { flex: 1; font-size: 0.82rem; color: var(--texto); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pendiente-archivo .pendiente-peso { font-size: 0.75rem; color: var(--gris3); flex-shrink: 0; }
.pendiente-archivo .pendiente-quitar { flex-shrink: 0; background: none; border: none; color: var(--gris3); cursor: pointer; font-size: 1rem; line-height: 1; padding: 2px 6px; }
.pendiente-archivo .pendiente-quitar:hover { color: #e74c3c; }
.pendiente-archivo.pendiente-error { border-color: #e74c3c; }
.pendiente-archivo .pendiente-estado { font-size: 0.75rem; flex-shrink: 0; }

.breadcrumb { font-size: 0.8rem; color: var(--gris3); margin-bottom: 4px; }
.breadcrumb a { color: var(--gris3); }
.breadcrumb a:hover { color: var(--blanco); }
.breadcrumb .actual { color: var(--texto); }
.badge { display: inline-block; padding: 3px 10px; border-radius: 50px; font-size: 0.75rem; font-weight: 600; }
.badge-pendiente { background: rgba(241,196,15,0.2); color: #f1c40f; }
.badge-confirmado { background: rgba(52,152,219,0.2); color: #3498db; }
.badge-enviado { background: rgba(155,89,182,0.2); color: #9b59b6; }
.badge-entregado { background: rgba(39,174,96,0.2); color: #27ae60; }
.badge-cancelado { background: rgba(231,76,60,0.2); color: #e74c3c; }
.badge-activo { background: rgba(39,174,96,0.2); color: #27ae60; }
.badge-inactivo { background: rgba(231,76,60,0.2); color: #e74c3c; }

/* ---- FORMULARIO ADMIN ---- */
.form-card { background: var(--gris); border: 1px solid var(--borde); border-radius: var(--radio); padding: 28px; }
.form-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--texto); margin-bottom: 24px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 0.85rem; color: var(--gris3); margin-bottom: 6px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; background: var(--gris2); border: 1px solid var(--borde);
  color: var(--texto); padding: 11px 14px; border-radius: var(--radio);
  font-size: 0.9rem; outline: none; transition: border-color var(--trans); font-family: inherit;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: var(--acento); }
.form-group textarea { resize: vertical; min-height: 90px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-check { display: flex; align-items: center; gap: 10px; }
.form-check input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--blanco); }
.form-actions { display: flex; gap: 12px; margin-top: 8px; }

.cat-extra-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px 12px;
  background: var(--gris2);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: 6px 10px;
  max-height: 180px;
  overflow-y: auto;
}
.cat-extra-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 4px;
  border-radius: 6px;
  font-size: 0.85rem;
  line-height: 1.3;
  color: var(--texto);
  cursor: pointer;
  transition: background var(--trans);
}
.cat-extra-item:hover { background: rgba(255,255,255,0.06); }
.cat-extra-item.cat-extra-disabled { cursor: not-allowed; opacity: 0.45; }
.cat-extra-item.cat-extra-disabled:hover { background: none; }
.cat-extra-nota { font-style: italic; color: var(--gris3); font-size: 0.78rem; }
.cat-extra-item input[type="checkbox"] {
  width: 16px; height: 16px; flex-shrink: 0; margin-top: 1px;
  accent-color: var(--blanco); cursor: pointer;
}
@media (max-width: 560px) {
  .cat-extra-grid { grid-template-columns: 1fr; }
}

#modal-producto .modal { display: flex; flex-direction: column; padding: 0; overflow: hidden; max-width: 980px; }
#modal-producto .modal-header { padding: 28px 36px 0 36px; flex-shrink: 0; }
#modal-producto .modal-body { overflow-y: auto; flex: 1; padding: 0 36px; min-height: 0; }
#modal-producto .modal-footer { flex-shrink: 0; padding: 18px 36px; border-top: 1px solid var(--borde); }
#modal-producto .cat-extra-grid { grid-template-columns: repeat(3, 1fr); }
#modal-producto .medidas-grid { grid-template-columns: 100px repeat(2, minmax(0, 1fr)); max-width: 460px; }
@media (max-width: 720px) {
  #modal-producto .cat-extra-grid { grid-template-columns: 1fr 1fr; }
}

.ficha-tecnica-bloque { background: var(--gris2); border: 1px solid var(--borde); border-radius: var(--radio); padding: 16px; margin-bottom: 16px; }
.ficha-tecnica-bloque h5 { color: var(--blanco); font-size: 0.9rem; margin-bottom: 12px; }
.ficha-tecnica-bloque .form-row { grid-template-columns: 1fr 1fr 1fr; }
.medidas-grid { display: grid; grid-template-columns: 90px 1fr 1fr; gap: 8px 12px; align-items: center; margin-bottom: 14px; }
.medidas-grid .medidas-head { font-size: 0.78rem; color: var(--gris3); }
.medidas-grid .medidas-label { font-size: 0.85rem; color: var(--texto); }
.medidas-grid input { width: 100%; background: var(--gris); border: 1px solid var(--borde); color: var(--texto); padding: 8px 10px; border-radius: 6px; font-size: 0.85rem; outline: none; }
.medidas-grid input:focus { border-color: var(--acento); }

.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 22px; border-radius: var(--radio); font-size: 0.9rem; font-weight: 600; cursor: pointer; border: none; transition: all var(--trans); }
.btn-primary { background: var(--blanco); color: #000; }
.btn-primary:hover { background: var(--acento); }
.btn-secondary { background: var(--gris2); border: 1px solid var(--borde); color: var(--texto); }
.btn-secondary:hover { border-color: var(--blanco); color: var(--blanco); }
.btn-danger { background: #c0392b; color: #fff; }
.btn-danger:hover { background: #e74c3c; }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }

/* ---- SEARCH BAR ---- */
.search-bar { display: flex; gap: 12px; margin-bottom: 20px; }
.search-bar input { flex: 1; background: var(--gris2); border: 1px solid var(--borde); color: var(--texto); padding: 10px 16px; border-radius: var(--radio); font-size: 0.9rem; outline: none; }
.search-bar input:focus { border-color: var(--acento); }

/* ---- TOAST ---- */
.toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
.toast { background: var(--gris); border: 1px solid var(--borde); border-left: 4px solid var(--blanco); color: var(--texto); padding: 14px 20px; border-radius: var(--radio); font-size: 0.9rem; animation: slideIn 0.3s ease; max-width: 320px; }
.toast.success { border-left-color: #27ae60; }
.toast.error { border-left-color: #e74c3c; }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ---- MODAL ---- */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.7); z-index: 2000; display: flex; align-items: center; justify-content: center; padding: 20px; opacity: 0; pointer-events: none; transition: opacity var(--trans); }
.modal-overlay.active { opacity: 1; pointer-events: all; }
.modal { background: var(--gris); border: 1px solid var(--borde); border-radius: var(--radio); padding: 32px; max-width: 600px; width: 100%; max-height: 90vh; overflow-y: auto; transform: scale(0.9); transition: transform var(--trans); }
.modal-overlay.active .modal { transform: scale(1); }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.modal-header h3 { font-size: 1.2rem; font-weight: 700; color: var(--texto); }
.modal-close { background: none; border: none; color: var(--gris3); font-size: 1.5rem; cursor: pointer; transition: color var(--trans); }
.modal-close:hover { color: var(--texto); }

/* ---- SIDEBAR TOGGLE ---- */
.sidebar-toggle {
  display: none; background: none; border: none; color: var(--texto);
  font-size: 1.4rem; cursor: pointer; padding: 4px 8px; margin-right: 12px;
  border-radius: var(--radio); transition: background var(--trans);
}
.sidebar-toggle:hover { background: rgba(255,255,255,0.08); }

@media (max-width: 600px) {
  .sidebar { transform: translateX(-100%); transition: transform var(--trans); }
  .sidebar.open { transform: translateX(0); }
  .admin-main { margin-left: 0; }
  .form-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .sidebar-toggle { display: inline-flex; align-items: center; }
}