:root {
    --bg-primary: #f1f5f9;
    --bg-sidebar: #ffffff;
    --bg-card: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --danger: #ef4444;
    --success: #10b981;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    min-height: 100vh;
    margin: 0;
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    padding: 24px 0;
    position: fixed;
    width: 260px;
    z-index: 100;
}

.sidebar h4 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 2.5rem;
    letter-spacing: 0.5px;
}

.sidebar a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 12px 24px;
    display: block;
    font-weight: 500;
    transition: all 0.2s ease-in-out;
    border-left: 3px solid transparent;
    margin-bottom: 4px;
}

.sidebar a:hover {
    background-color: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
}

.sidebar a.active {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--accent);
    border-left: 3px solid var(--accent);
}

/* Main Content */
.main-content {
    margin-left: 260px;
    padding: 40px;
}

/* Login Page Layout */
.login-card {
    max-width: 400px;
    margin: 100px auto;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.login-title {
    text-align: center;
    font-weight: 700;
    margin-bottom: 30px;
    color: var(--text-primary);
}

h2 {
    font-weight: 600;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

/* Cards & Sections */
.form-section, .card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.card-header {
    background-color: rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 24px;
    font-weight: 600;
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
}

.card-body {
    padding: 24px;
}

/* Stat Cards for Dashboard */
.stat-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: transform 0.2s;
}
.stat-card:hover {
    transform: translateY(-2px);
}
.stat-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}
.stat-card h3 {
    color: var(--text-primary);
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
}

/* Inputs */
.form-control, .form-select {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 8px;
    padding: 10px 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

.form-control:focus, .form-select:focus {
    background-color: var(--bg-card);
    border-color: var(--accent);
    color: var(--text-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

/* Buttons */
.btn {
    border-radius: 8px;
    font-weight: 500;
    padding: 10px 20px;
    transition: all 0.2s;
}

.btn-primary {
    background-color: var(--accent);
    border-color: var(--accent);
    color: white;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
}

.btn-success {
    background-color: var(--success);
    border-color: var(--success);
}

.btn-danger {
    background-color: var(--danger);
    border-color: var(--danger);
}

/* Tables */
.table-responsive {
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-card);
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
}

.table {
    color: var(--text-primary);
    margin-bottom: 0;
    --bs-table-bg: transparent;
    --bs-table-color: var(--text-primary);
    --bs-table-hover-bg: rgba(255, 255, 255, 0.03);
    --bs-table-hover-color: var(--text-primary);
}

.table>tbody>tr>td, .table>thead>tr>th {
    border-bottom: 1px solid var(--border-color);
    padding: 16px 24px;
    vertical-align: middle;
    background-color: transparent;
}

.table>thead>tr>th {
    background-color: rgba(0, 0, 0, 0.2);
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-color);
}

.table>tbody>tr:last-child>td {
    border-bottom: none;
}

.table-hover>tbody>tr:hover>td, .table-hover>tbody>tr:hover>th {
    background-color: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
}

/* Badges */
.badge {
    padding: 6px 12px;
    font-weight: 500;
    border-radius: 9999px;
}

.bg-success { background-color: rgba(16, 185, 129, 0.2) !important; color: #34d399 !important; }
.bg-warning { background-color: rgba(245, 158, 11, 0.2) !important; color: #fbbf24 !important; }
.bg-danger { background-color: rgba(239, 68, 68, 0.2) !important; color: #f87171 !important; }

/* Sidebar Close Button */
.close-sidebar-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 1060;
}
.close-sidebar-btn:hover {
    background: rgba(239, 68, 68, 0.15); /* light red hover */
    color: var(--danger);
    border-color: rgba(239, 68, 68, 0.3);
    transform: rotate(90deg);
}

/* Sidebar Overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1040;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.sidebar-overlay.show {
    display: block;
    opacity: 1;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .sidebar {
        display: flex;
        flex-direction: column;
        width: 260px;
        height: 100vh;
        position: fixed;
        left: -260px;
        top: 0;
        padding: 24px 0;
        border-right: 1px solid var(--border-color);
        border-bottom: none;
        transition: left 0.3s ease;
        z-index: 1050;
    }
    
    .sidebar.open {
        left: 0;
    }
    
    .sidebar h4 {
        margin-bottom: 2.5rem;
        text-align: center;
    }
    
    .sidebar a {
        display: block;
        padding: 12px 24px;
        margin-bottom: 4px;
        border-left: 3px solid transparent;
        border-bottom: none;
    }
    
    .sidebar a.active {
        border-left: 3px solid var(--accent);
        border-bottom: none;
    }
    
    .main-content {
        margin-left: 0;
        padding: 20px;
    }
    
    .main-content > .d-flex.justify-content-between {
        flex-direction: column;
        align-items: flex-start !important;
        gap: 15px;
    }
    
    .main-content .d-flex.gap-3.text-secondary.text-end {
        text-align: left !important;
        width: 100%;
    }
    
    .mobile-header {
        display: flex !important;
    }
}
.mobile-header {
    display: none;
    align-items: center;
    margin-bottom: 1rem;
}