/* --- ESTILOS COMPARTIDOS --- */
/* Paleta de colores inspirada en Firmamento */
:root {
  --primary-color: #22d3ee;
  /* Cian brillante */
  --secondary-color: #a855f7;
  /* Violeta */
  --danger-color: #f43f5e;
  /* Rosa/rojo moderno */
  --background-color: #0f172a;
  /* Azul muy oscuro */
  --sidebar-color: #1e293b;
  /* Azul oscuro sidebar */
  --text-light: #f1f5f9;
  /* Texto claro */
  --card-bg: #1e293b;
  /* Fondo de tarjetas */
  --warning-color: #fbbf24;
  /* Amarillo moderno */
  --info-color: #38bdf8;
  /* Azul info */
  --text-muted: #94a3b8;
  /* Texto secundario */
  --border-color: #334155;
  /* Bordes sutiles */
  --gradient-start: #22d3ee;
  /* Inicio gradiente */
  --gradient-end: #a855f7;
  /* Fin gradiente */
}

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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--background-color);
  color: var(--text-light);
  line-height: 1.6;
}

.dashboard-container {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 250px;
  background-color: var(--sidebar-color);
  color: var(--text-light);
  padding: 20px;
  box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 30px;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  padding: 12px 15px;
  color: var(--text-light);
  text-decoration: none;
  border-radius: 5px;
  margin-bottom: 10px;
  transition: background-color 0.3s, color 0.3s;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.2), rgba(168, 85, 247, 0.2));
  color: var(--primary-color);
  border-left: 3px solid var(--primary-color);
}

.sidebar-nav a i {
  margin-right: 10px;
}

.main-content {
  flex-grow: 1;
  padding: 30px;
}

.content-section {
  background-color: var(--card-bg);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  margin-bottom: 20px;
  border: 1px solid var(--border-color);
}

.content-section:not(.active) {
  display: none;
}

h2 {
  color: var(--text-light);
  margin-bottom: 25px;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 10px;
}

h2 i {
  margin-right: 10px;
  color: var(--primary-color);
}

/* --- Formularios y Elementos --- */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-bottom: 20px;
}

.form-grid.single-col {
  grid-template-columns: 1fr;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--text-light);
}

input:not([type="checkbox"]),
select {
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 16px;
  transition: border-color 0.3s, box-shadow 0.3s;
  background-color: var(--background-color);
  color: var(--text-light);
}

input:focus,
select:focus {
  border-color: var(--primary-color);
  outline: none;
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.25);
}

select option {
  background-color: var(--sidebar-color);
  color: var(--text-light);
}

.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: bold;
  transition: background-color 0.3s, opacity 0.3s;
}

.primary-btn {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: var(--background-color);
  font-weight: 700;
}

.primary-btn:hover:not(:disabled) {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(34, 211, 238, 0.4);
}

.secondary-btn {
  background-color: var(--secondary-color);
  color: white;
}

.secondary-btn:hover:not(:disabled) {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(168, 85, 247, 0.4);
}

.danger-btn {
  background-color: var(--danger-color);
  color: white;
}

.danger-btn:hover:not(:disabled) {
  background-color: #b02a37;
}

.full-width {
  grid-column: 1 / -1;
  margin-top: 10px;
}

/* --- Mensajes y Advertencias --- */
.status-message {
  margin-top: 20px;
  padding: 15px;
  border-radius: 4px;
  font-weight: bold;
  display: none;
}

.status-message.success {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.status-message.error {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.status-message.info {
  background-color: #d1ecf1;
  color: #0c5460;
  border: 1px solid #bee5eb;
}

.status-message.warning {
  background-color: #fff3cd;
  color: #856404;
  border: 1px solid #ffeeba;
}

/* Filtro de Producto (Mostrar detalles) */
.product-details {
  margin-top: 15px;
  padding: 15px;
  border-left: 5px solid var(--primary-color);
  background-color: rgba(34, 211, 238, 0.1);
  border-radius: 8px;
}

.product-details p {
  margin: 5px 0;
  color: var(--text-light);
}

.product-details.hidden {
  display: none;
}

/* Tablas */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

.data-table th,
.data-table td {
  border: 1px solid var(--border-color);
  padding: 12px;
  text-align: left;
}

.data-table th {
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.2), rgba(168, 85, 247, 0.2));
  font-weight: 700;
  color: var(--text-light);
}

.data-table tr:nth-child(even) {
  background-color: rgba(30, 41, 59, 0.5);
}

.data-table tr:hover {
  background-color: rgba(34, 211, 238, 0.1);
}

/* Gráficos */
.chart-container {
  width: 100%;
  height: 400px;
  margin: 20px 0;
}

/* Dashboard Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.stat-card {
  background: var(--card-bg);
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  text-align: center;
  border-left: 4px solid;
  border: 1px solid var(--border-color);
  transition: transform 0.3s, box-shadow 0.3s;
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.stat-card.ventas {
  border-color: var(--primary-color);
}

.stat-card.compras {
  border-color: var(--info-color);
}

.stat-card.ganancias {
  border-color: var(--secondary-color);
}

.stat-card.gastos {
  border-color: var(--danger-color);
}

.stat-value {
  font-size: 2rem;
  font-weight: bold;
  margin: 10px 0;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Responsivo */
@media (max-width: 768px) {
  .dashboard-container {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    height: auto;
    padding: 15px 20px;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .sidebar .logo {
    margin-bottom: 0;
  }

  .sidebar-nav {
    display: flex;
    overflow-x: auto;
    padding-bottom: 5px;
  }

  .sidebar-nav a {
    padding: 8px 10px;
    flex-shrink: 0;
  }

  .main-content {
    padding: 20px;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Footer Firmamento */
.site-footer {
  background: linear-gradient(135deg, var(--sidebar-color) 0%, var(--background-color) 100%);
  border-top: 1px solid var(--border-color);
  padding: 25px 30px;
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  transition: transform 0.3s ease;
}

.footer-brand:hover {
  transform: scale(1.05);
}

.footer-brand-text {
  font-size: 1.3rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-brand i {
  font-size: 1.5rem;
  color: var(--primary-color);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-5px);
  }
}

.footer-tagline {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 25px;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: var(--background-color);
  text-decoration: none;
  border-radius: 25px;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(34, 211, 238, 0.3);
}

.footer-link:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(34, 211, 238, 0.4);
}

.footer-link i {
  transition: transform 0.3s ease;
}

.footer-link:hover i {
  transform: translateX(3px);
}

.footer-copyright {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 10px;
}

.footer-copyright a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-copyright a:hover {
  color: var(--secondary-color);
}

@media (max-width: 768px) {
  .site-footer {
    padding: 20px 15px;
  }

  .footer-brand-text {
    font-size: 1.1rem;
  }
}