/* Fuente principal del sistema */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');
body { font-family: 'Inter', sans-serif; transition: background-color 0.3s ease; }

/* Diseño de celdas libres en el horario */
.cell-libre { 
    background: #ecfdf5; color: #047857; border: 1px dashed #6ee7b7; 
    transition: all 0.2s ease; cursor: pointer; opacity: 1 !important; 
}
.dark .cell-libre { background: #0f172a; color: #34d399; border-color: #065f46; }
.cell-libre:hover { background: #d1fae5; border-color: #34d399; transform: scale(1.03); box-shadow: 0 4px 6px -1px rgba(16, 185, 129, 0.15); }

/* Diseño de celdas ocupadas en el horario */
.cell-ocupada { 
    background: linear-gradient(135deg, #ef4444, #dc2626); color: white; 
    transition: all 0.2s ease; cursor: pointer; border: 1px solid #b91c1c;
}
.cell-ocupada:hover { transform: scale(1.03); box-shadow: 0 10px 15px -3px rgba(239, 68, 68, 0.3); filter: brightness(1.1); }

/* Animaciones para carga de elementos y notificaciones (Toasts) */
.fade-in { animation: fadeIn 0.4s ease-out forwards; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(15px); } to { opacity: 1; transform: translateY(0); } }
.toast-enter { animation: slideInDown 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards; }
.toast-leave { animation: fadeOutUp 0.3s ease-in forwards; }
@keyframes slideInDown { from { transform: translateY(-150%); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
@keyframes fadeOutUp { from { transform: translateY(0); opacity: 1; } to { transform: translateY(-50%); opacity: 0; } }

/* Estilo de botones de navegación (Pestañas) */
.tab-btn { padding: 0.6rem 1.5rem; border-radius: 1rem; font-size: 0.875rem; font-weight: 700; color: #475569; transition: all 0.3s ease; }
.dark .tab-btn { color: #94a3b8; }
.tab-btn:hover { background: rgba(255,255,255,0.8); color: #1e293b; }
.dark .tab-btn:hover { background: rgba(30,41,59,0.8); color: #f8fafc; }
.tab-active { background-color: #ffffff; color: #2563eb; box-shadow: 0 4px 10px -2px rgba(37, 99, 235, 0.15); }
.dark .tab-active { background-color: #1e293b; color: #60a5fa; box-shadow: 0 4px 10px -2px rgba(0, 0, 0, 0.5); }

/* Ajustes menores de UI */
.dark input[type="date"]::-webkit-calendar-picker-indicator { filter: invert(1); cursor: pointer; }
.custom-scrollbar::-webkit-scrollbar { width: 6px; }
.custom-scrollbar::-webkit-scrollbar-track { background: transparent; }
.custom-scrollbar::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; }
.dark .custom-scrollbar::-webkit-scrollbar-thumb { background: #475569; }