:root {
  --bg-dark: #0a0e17;
  --bg-card: #111827;
  --bg-sidebar: #0f172a;
  --border: #334155;
  --border-light: #475569;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --text: #ffffff;
  --text-muted: #cbd5e1;
  --text-dim: #94a3b8;
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
  background-color: var(--bg-dark);
  color: var(--text);
  height: 100vh;
  overflow: hidden;
}

.app-container {
  display: none;
  height: 100vh;
}

.app-container.autenticado {
  display: flex;
}

/* SIDEBAR */
.sidebar {
  width: 310px;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-header h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-section {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}

.sidebar-section h3 {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 10px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* MÉTRICAS EN SIDEBAR */
.metric-box {
  background-color: #0b0f19;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
  margin-bottom: 8px;
}

.metric-title {
  font-size: 0.72rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  margin-bottom: 4px;
}

.metric-bar-bg {
  width: 100%;
  height: 5px;
  background-color: #1e293b;
  border-radius: 4px;
  overflow: hidden;
}

.metric-bar-fill {
  height: 100%;
  background-color: var(--accent);
  transition: width 0.3s;
}

.metric-bar-fill.warning {
  background-color: var(--warning);
}

.metric-bar-fill.danger {
  background-color: var(--danger);
}

.nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  color: #f8fafc;
  font-size: 0.85rem;
  margin-bottom: 4px;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.nav-item:hover {
  background-color: #1e293b;
  border-color: var(--border);
}

.nav-item.active {
  background-color: #1e293b;
  border-color: var(--accent);
  color: #ffffff;
}

/* TABS DE NAVEGACIÓN SUPERIOR */
.tab-nav {
  display: flex;
  gap: 4px;
  background-color: #0b0f19;
  padding: 4px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 6px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.tab-btn:hover {
  color: #ffffff;
  background-color: #1e293b;
}

.tab-btn.active {
  color: #ffffff;
  background-color: var(--accent);
}

/* BADGES */
.badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 12px;
  background: #334155;
  color: #f8fafc;
}

.badge-success { background: #064e3b; color: #6ee7b7; border: 1px solid #059669; }
.badge-warning { background: #78350f; color: #fde68a; border: 1px solid #d97706; }
.badge-danger { background: #7f1d1d; color: #fca5a5; border: 1px solid #dc2626; }
.badge-info { background: #1e3a8a; color: #93c5fd; border: 1px solid #3b82f6; }

/* BOTONES */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border);
  background: #1e293b;
  color: #ffffff;
  transition: all 0.2s ease;
}

.btn:hover {
  background: #334155;
  border-color: var(--border-light);
}

.btn-primary {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-success {
  background-color: #059669;
  border-color: #059669;
  color: #ffffff;
}

.btn-success:hover {
  background-color: #047857;
}

.btn-block { width: 100%; }

/* MAIN CONTENT */
.main-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background-color: var(--bg-dark);
}

.top-bar {
  height: 64px;
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
}

.top-bar .status-badge {
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  gap: 8px;
  color: #e2e8f0;
  font-weight: 500;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background-color: var(--success);
  box-shadow: 0 0 8px rgba(52, 211, 153, 0.6);
}

.content-area {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
}

/* CARDS */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

.card h3 {
  color: #ffffff;
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 9px 12px;
  background-color: #0b0f19;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: #ffffff;
  font-size: 0.88rem;
  outline: none;
  transition: border-color 0.2s;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: #60a5fa;
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

.form-textarea {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  min-height: 200px;
  resize: vertical;
}

.preview-box {
  background: #ffffff;
  color: #0f172a;
  border-radius: 8px;
  height: 380px;
  overflow-y: auto;
  border: 1px solid var(--border);
  padding: 16px;
}

/* TABLA DE BASE DE DATOS D1 Y COLAS */
.table-container {
  max-height: 520px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background-color: #0b0f19;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.84rem;
}

.data-table thead th {
  position: sticky;
  top: 0;
  background-color: #1e293b;
  color: #ffffff;
  font-weight: 600;
  padding: 11px 12px;
  border-bottom: 2px solid var(--border-light);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  z-index: 10;
}

.data-table thead th:hover {
  background-color: #334155;
}

.data-table tbody td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--border);
  color: #e2e8f0;
  white-space: nowrap;
}

.data-table tbody tr:hover {
  background-color: #111827;
}

/* ICONOS SVG */
.icon {
  width: 17px;
  height: 17px;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  vertical-align: middle;
}

.icon-sort {
  width: 13px;
  height: 13px;
  margin-left: 4px;
  opacity: 0.6;
}

/* PANTALLA DE LOGIN 100% OPACA */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: #0a0e17;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
}

.modal-card {
  width: 400px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 28px;
  text-align: center;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}