/* ===== Variables y Reset ===== */
:root {
  --primary: #0891b2;
  --primary-dark: #0e7490;
  --secondary: #06b6d4;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ===== Contenedor Principal ===== */
.tra-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
}


/* ===== Barra de Modo ===== */
.tra-modebar {
  padding: 1rem 1.5rem !important;
  border-radius: var(--radius) !important;
  margin-bottom: 1.5rem !important;
  text-align: center !important;
  font-weight: 600;
  font-size: 0.95rem;
  box-shadow: var(--shadow-md);
  animation: slideDown 0.4s ease-out;
  border: 2px solid rgba(255, 255, 255, 0.1);
}

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

/* ===== Títulos ===== */
.tra-wrapper h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2rem;
  text-align: center;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tra-wrapper h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--border);
}

/* ===== Tarjetas ===== */
.tra-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.tra-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* ===== Grid y Filas ===== */
.tra-grid {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.tra-row {
  display: grid;
  gap: 1rem;
  margin-bottom: 1rem;
}

.tra-cols-2 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.tra-cols-3 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

@media (max-width: 768px) {
  .tra-cols-2,
  .tra-cols-3 {
    grid-template-columns: 1fr;
  }
}

/* ===== Formularios ===== */
.tra-card label {
  display: block;
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tra-card input,
.tra-card select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  transition: var(--transition);
  background: var(--bg-main);
  color: var(--text-primary);
  font-family: inherit;
}

.tra-card input:focus,
.tra-card select:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--bg-card);
  box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.1);
}

.tra-card input:hover,
.tra-card select:hover {
  border-color: var(--primary-dark);
}

/* ===== Tabla ===== */
.tra-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-bottom: 1rem;
  overflow: hidden;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.tra-table thead {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
}

.tra-table th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tra-table tbody tr {
  background: var(--bg-card);
  transition: var(--transition);
  border-bottom: 1px solid var(--border);
}

.tra-table tbody tr:hover {
  background: var(--bg-main);
  transform: scale(1.01);
}

.tra-table td {
  padding: 1rem;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.tra-table input {
  padding: 0.5rem;
  font-size: 0.875rem;
  border: 1px solid var(--border);
}

.tra-table select {
  padding: 0.5rem;
  font-size: 0.875rem;
}

/* ===== Botones ===== */
.tra-btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-sm);
  font-family: inherit;
  background: var(--bg-main);
  color: var(--text-primary);
  border: 2px solid var(--border);
}

.tra-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.tra-btn:active {
  transform: translateY(0);
}

.tra-btn.primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  border: none;
}

.tra-btn.primary:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  box-shadow: 0 8px 16px rgba(8, 145, 178, 0.3);
}

.tra-btn.warn {
  background: linear-gradient(135deg, var(--warning), #f97316);
  color: white;
  border: none;
}

.tra-btn.warn:hover {
  background: linear-gradient(135deg, #d97706, var(--warning));
}

/* Botón de eliminar en tabla */
.tra-table .tra-btn {
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  background: var(--danger);
  color: white;
  border: none;
}

.tra-table .tra-btn:hover {
  background: #dc2626;
}

/* ===== Acciones ===== */
.tra-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.tra-actions .tra-btn {
  flex: 1;
  min-width: 200px;
  justify-content: center;
}

@media (max-width: 640px) {
  .tra-actions {
    flex-direction: column;
  }
  
  .tra-actions .tra-btn {
    width: 100%;
  }
}

/* ===== Consola/Log ===== */
#log {
  background: #1e293b;
  color: #e2e8f0;
  padding: 1.5rem;
  border-radius: var(--radius-sm);
  font-family: 'Courier New', monospace;
  font-size: 0.875rem;
  line-height: 1.8;
  max-height: 400px;
  overflow-y: auto;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
  border: 2px solid #334155;
}

#log:empty::before {
  content: "Esperando acciones...";
  color: #64748b;
  font-style: italic;
}

/* Scrollbar personalizado */
#log::-webkit-scrollbar {
  width: 8px;
}

#log::-webkit-scrollbar-track {
  background: #0f172a;
  border-radius: 4px;
}

#log::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 4px;
}

#log::-webkit-scrollbar-thumb:hover {
  background: var(--secondary);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .tra-wrapper {
    padding: 1rem;
  }
  
  .tra-wrapper h1 {
    font-size: 1.875rem;
  }
  
  .tra-card {
    padding: 1.5rem;
  }
  
  .tra-table {
    font-size: 0.8rem;
  }
  
  .tra-table th,
  .tra-table td {
    padding: 0.75rem 0.5rem;
  }
}

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

.tra-card {
  animation: fadeIn 0.4s ease-out;
}

/* ===== Estados de validación ===== */
.tra-card input:invalid:not(:placeholder-shown) {
  border-color: var(--danger);
}

.tra-card input:valid:not(:placeholder-shown) {
  border-color: var(--success);
}

/* ===== Tooltip y efectos adicionales ===== */
.tra-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ===== Mejoras de accesibilidad ===== */
.tra-btn:focus-visible,
.tra-card input:focus-visible,
.tra-card select:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}