:root {
    /* Modern Clean Palette */
    --primary-color: #2563eb;       /* Deep Blue */
    --secondary-color: #64748b;     /* Slate Gray */
    --success-color: #10b981;       /* Emerald */
    --danger-color: #ef4444;        /* Red */
    --warning-color: #f59e0b;       /* Amber */
    --info-color: #3b82f6;          /* Blue */
    --light-bg: #f3f4f6;           /* Light Gray Background */
    --card-bg: #ffffff;            /* White Card Background */
    --text-main: #1f2937;          /* Dark Gray Text */
    --text-muted: #6b7280;         /* Muted Text */
}

body {
    min-height: 100vh;
    background-color: var(--light-bg);
    color: var(--text-main);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: #111827;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
}

/* Modern Cards */
.dashboard-card {
    background-color: var(--card-bg);
    border: 1px solid rgba(229, 231, 235, 0.5); /* subtle border */
    border-radius: 16px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03); /* Soft shadow */
    transition: all 0.3s ease;
    overflow: hidden;
}

.dashboard-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    border-color: var(--primary-color);
}

/* Stat Cards */
.stat-card {
    position: relative;
    overflow: hidden;
    border: none;
    color: white; /* Default text color for stats */
    z-index: 1;
    background-color: var(--secondary-color); /* Default fallback */
}

.stat-card.primary { background-color: var(--primary-color); }
.stat-card.secondary { background-color: var(--secondary-color); }
.stat-card.success { background-color: var(--success-color); }
.stat-card.danger { background-color: var(--danger-color); }
.stat-card.warning { background-color: var(--warning-color); color: #212529; } /* Dark text for yellow bg */
.stat-card.info { background-color: var(--info-color); }

.stat-card::before {
    content: '';
    position: absolute;
    top: 0; right: 0; bottom: 0; left: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, rgba(255,255,255,0) 100%);
    z-index: -1;
}

.stat-value {
    font-size: 2.25rem;
    font-weight: 700;
    letter-spacing: -1px;
}

.stat-label {
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.9;
}

/* Tables */
.table {
    --bs-table-bg: transparent;
}

.table thead th {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    background-color: #f9fafb;
    border-bottom: 1px solid #e5e7eb;
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
}

.table-hover tbody tr:hover {
    background-color: rgba(37, 99, 235, 0.04);
}

/* Badges */
.user-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px; /* Pill shape */
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.025em;
}

.user-badge-agregado {
    background-color: #eff6ff;
    color: #2563eb;
    border: 1px solid #dbeafe;
}

.user-badge-single {
    background-color: #ecfdf5;
    color: #059669;
    border: 1px solid #d1fae5;
}

.navbar-custom {
    background-color: #1e293b !important; /* Dark Slate */
    min-height: 80px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: #f1f1f1;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}