:root {
    --primary-color: #0f172a;
    --primary-light: #1e293b;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --bg-light: #f8fafc;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --nav-height: 70px;
    --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-main);
}

/* Navbar Premium Styling */
.navbar {
    background: var(--primary-color) !important;
    padding: 0.75rem 0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar-brand {
    font-size: 1.25rem;
    letter-spacing: -0.025em;
    display: flex;
    align-items: center;
}

.navbar-brand i {
    color: var(--accent-color);
    font-size: 1.5rem;
}

.navbar .nav-link {
    font-weight: 500;
    color: rgba(248, 250, 252, 0.8) !important;
    padding: 0.625rem 1rem !important;
    border-radius: 0.5rem;
    transition: var(--transition-base);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar .nav-link:hover {
    color: #fff !important;
    background: rgba(255, 255, 255, 0.08);
}

.navbar .nav-link.active {
    color: #fff !important;
    background: rgba(59, 130, 246, 0.15);
}

.nav-link i {
    font-size: 1.1rem;
    opacity: 0.7;
}

/* Dropdown Premium Styling */
.dropdown-menu {
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.1);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    border-radius: 0.75rem;
    padding: 0.5rem;
    margin-top: 0.5rem !important;
    min-width: 220px;
    animation: slideIn 0.2s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dropdown-item {
    padding: 0.625rem 0.875rem;
    border-radius: 0.5rem;
    font-weight: 500;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: var(--transition-base);
}

.dropdown-item i {
    font-size: 1.1rem;
    color: var(--text-muted);
}

.dropdown-item:hover {
    background-color: #f1f5f9;
    color: var(--accent-color);
}

.dropdown-item:hover i {
    color: var(--accent-color);
}

/* Buttons */
.btn-outline-light {
    border-color: rgba(255, 255, 255, 0.2);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
}


/* Cards */
.card {
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    overflow: hidden;
}

.card-header {
    background: #fff;
    border-bottom: 1px solid rgba(15, 23, 42, 0.08);
    padding: 1.25rem 1.5rem;
}

/* Tables */
.table thead th {
    background-color: #f1f5f9;
    text-transform: uppercase;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    border-bottom-width: 1px;
    padding: 1rem 1.5rem;
}

.table tbody td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #f1f5f9;
}

/* Premium Buttons */
.btn-premium {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    color: white;
    border: none;
    font-weight: 600;
    padding: 0.625rem 1.25rem;
    border-radius: 0.625rem;
    transition: var(--transition-base);
    box-shadow: 0 4px 6px -1px rgba(59, 130, 246, 0.3);
}

.btn-premium:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 15px -3px rgba(59, 130, 246, 0.4);
    color: white;
}

.btn-success-premium {
    background: linear-gradient(135deg, #10b981, #059669);
    box-shadow: 0 4px 6px -1px rgba(16, 185, 129, 0.3);
}

.btn-danger-premium {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    box-shadow: 0 4px 6px -1px rgba(239, 68, 68, 0.3);
}

.btn-info-premium {
    background: linear-gradient(135deg, #06b6d4, #0891b2);
    box-shadow: 0 4px 6px -1px rgba(6, 182, 212, 0.3);
}

/* Filters */
.filter-bar {
    background: #fff;
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: 1rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

.x-small { font-size: 0.75rem; }
.hover-link { transition: var(--transition-base); }
.hover-link:hover { color: var(--accent-color) !important; text-decoration: underline !important; cursor: pointer; }