:root {
    --primary-color: #4f46e5;
    --secondary-color: #10b981;
    --bg-gradient: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    --card-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;
}

body {
    background: var(--bg-gradient);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    min-height: 100vh;
    color: #1e293b;
}

.navbar-brand {
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--primary-color) !important;
}

.card {
    border: none;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.bg-low { background-color: var(--accent-warning); }
.bg-danger { background-color: var(--accent-danger); }
.bg-ok { background-color: var(--secondary-color); }

.btn-primary {
    background-color: var(--primary-color);
    border: none;
    border-radius: 10px;
    padding: 10px 20px;
    font-weight: 600;
}

.table th {
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: #64748b;
    border-top: none;
}

.modal-content {
    border: none;
    border-radius: 20px;
}

.modal-header {
    border-bottom: none;
    padding: 2rem 2rem 1rem;
}

.modal-body {
    padding: 1rem 2rem 2rem;
}

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

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}