:root {
    --primary-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    --paper: #f8fafc;
    --ink: #0f172a;
    --ledger: #334155;
    --stamp-blue: #2563eb;
    --stamp-green: #16a34a;
    --alert-red: #dc2626;
    --surface: #ffffff;
    --surface-soft: #f1f5f9;
    --line-soft: rgba(15, 23, 42, 0.08);
    --line-strong: rgba(15, 23, 42, 0.16);
    --glass: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.2);
}

body {
    font-family: 'Outfit', sans-serif !important;
    background-color: var(--paper) !important;
    color: var(--ink) !important;
}

/* Sidebar Modernization */
#accordionSidebar {
    background: var(--primary-gradient) !important;
    border-right: 1px solid var(--line-soft);
}

.sidebar .nav-item .nav-link {
    font-weight: 500;
    transition: all 0.3s ease;
}

.sidebar .nav-item .nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
}

.sidebar .nav-item.active .nav-link {
    font-weight: 700;
    background: rgba(255, 255, 255, 0.15);
}

/* Glass Cards */
.card {
    border: 1px solid var(--line-soft) !important;
    border-radius: 14px !important;
    background: var(--surface) !important;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04) !important;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease !important;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 45px rgba(0, 0, 0, 0.08) !important;
}

.card-header {
    background: transparent !important;
    border-bottom: 1px solid var(--line-soft) !important;
    padding: 1.25rem !important;
}

/* Premium Buttons */
.btn-primary {
    background: var(--accent-gradient) !important;
    border: none !important;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2) !important;
    transition: all 0.3s ease !important;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3) !important;
    filter: brightness(1.1);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%) !important;
    border: none !important;
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.2) !important;
}

/* Modern Tables */
.table {
    color: var(--ink) !important;
}

.table thead th {
    background: var(--surface-soft) !important;
    border: none !important;
    color: var(--ledger) !important;
    font-weight: 600 !important;
    text-transform: uppercase !important;
    font-size: 0.75rem !important;
    letter-spacing: 0.05em !important;
}

.table td {
    border-top: 1px solid var(--line-soft) !important;
    vertical-align: middle !important;
    transition: background 0.2s ease !important;
}

.table tr:hover td {
    background: var(--surface-soft) !important;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--paper);
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Layout Spacing */
.container-fluid {
    padding-top: 1.5rem !important;
}

.sidebar-brand-icon img {
    max-height: 40px;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.1));
}