* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #06b6d4;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --dark-bg: #0f172a;
    --darker-bg: #020617;
    --light-bg: #1e293b;
    --card-bg: #1e293b;
    --text-dark: #f1f5f9;
    --text-light: #94a3b8;
    --border-color: #334155;
    --sidebar-width: 260px;
    --header-height: 70px;
    --input-bg: #0f172a;
    --hover-bg: #334155;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: url('../images/pages_background.jpg') center/cover fixed;
    color: var(--text-dark);
    line-height: 1.6;
    position: relative;
}

.wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: rgba(30, 41, 59, 0.6);
    backdrop-filter: blur(25px) saturate(180%);
    -webkit-backdrop-filter: blur(25px) saturate(180%);
    color: white;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 2px 0 20px rgba(0, 0, 0, 0.5);
    border-right: 1px solid rgba(255, 255, 255, 0.15);
}

@media (max-width: 1024px) {
    table th, table td {
        font-size: 0.8rem;
        padding: 10px 6px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.active {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0 !important;
    }
}

.sidebar-header {
    padding: 25px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.sidebar-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-header p {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 5px;
}

.sidebar-menu {
    list-style: none;
    padding: 20px 0;
}

.sidebar-menu li {
    margin: 5px 0;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    padding: 14px 20px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.sidebar-menu a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-left-color: var(--primary-color);
}

.sidebar-menu a.active {
    background: rgba(79, 70, 229, 0.2);
    color: white;
    border-left-color: var(--primary-color);
}

.sidebar-menu a i {
    margin-right: 12px;
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-height: 100vh;
}

.header {
    background: rgba(30, 41, 59, 0.6);
    backdrop-filter: blur(25px) saturate(180%);
    -webkit-backdrop-filter: blur(25px) saturate(180%);
    padding: 20px 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    position: relative;
    z-index: 100;
}

.header-left h1 {
    font-size: 1.8rem;
    color: var(--text-dark);
    font-weight: 600;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-menu {
    display: flex;
    gap: 15px;
    list-style: none;
}

.header-menu a {
    color: var(--text-light);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 6px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.header-menu a:hover {
    background: var(--hover-bg);
    color: var(--primary-color);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 15px;
    background: var(--input-bg);
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.user-profile:hover {
    background: var(--hover-bg);
    border-color: var(--primary-color);
}

#userMenu a:hover {
    background: var(--hover-bg);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
}

.content-area {
    padding: 30px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
    position: relative;
    z-index: 1;
}

.stat-card {
    background: rgba(30, 41, 59, 0.5);
    backdrop-filter: blur(25px) saturate(180%);
    -webkit-backdrop-filter: blur(25px) saturate(180%);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    border-left: 4px solid var(--primary-color);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    z-index: 1;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    border-color: rgba(99, 102, 241, 0.5);
    background: rgba(30, 41, 59, 0.65);
}

.stat-card.success {
    border-left-color: var(--success-color);
}

.stat-card.warning {
    border-left-color: var(--warning-color);
}

.stat-card.danger {
    border-left-color: var(--danger-color);
}

.stat-card h3 {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 5px;
}

.stat-card .stat-label {
    font-size: 0.85rem;
    color: var(--text-light);
}

.card {
    background: rgba(30, 41, 59, 0.5);
    backdrop-filter: blur(25px) saturate(180%);
    -webkit-backdrop-filter: blur(25px) saturate(180%);
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    margin-bottom: 25px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
    flex-wrap: wrap;
    gap: 10px;
}

.card-header h2 {
    font-size: 1.4rem;
    color: var(--text-dark);
    font-weight: 600;
}

@media (max-width: 768px) {
    .card-header {
        flex-direction: column;
        align-items: flex-start;
    }
    .card-header h2 {
        font-size: 1.2rem;
    }
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(79, 70, 229, 0.3);
}

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

.btn-success:hover {
    background: #059669;
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background: #0891b2;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.95rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="month"],
select,
textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    color: var(--text-dark);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
input[type="month"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: rgba(99, 102, 241, 0.6);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
    background: rgba(255, 255, 255, 0.2);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(30, 41, 59, 0.4);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

table thead {
    background: rgba(99, 102, 241, 0.6);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
}

table th {
    padding: 15px;
    text-align: left;
    font-weight: 600;
    color: var(--text-dark);
    border-bottom: 2px solid var(--border-color);
}

table td {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-dark);
}

table tbody tr:hover {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.badge {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-block;
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
}

.action-buttons {
    display: flex;
    gap: 10px;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.85rem;
}

.payslip-preview {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 40px;
    max-width: 800px;
    margin: 0 auto;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.payslip-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--primary-color);
}

.payslip-header h1 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.payslip-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

.payslip-section {
    margin-bottom: 25px;
}

.payslip-section h3 {
    background: rgba(30, 41, 59, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 10px 15px;
    margin-bottom: 15px;
    border-left: 4px solid var(--primary-color);
    color: var(--text-dark);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
}

.payslip-table {
    width: 100%;
}

.payslip-table td {
    padding: 10px;
}

.payslip-total {
    background: var(--primary-color);
    color: white;
    padding: 15px;
    text-align: right;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 8px;
    margin-top: 20px;
}

@media print {
    .sidebar,
    .header,
    .btn {
        display: none;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .payslip-preview {
        box-shadow: none;
        border: none;
    }
}

input::placeholder,
textarea::placeholder {
    color: var(--text-light);
    opacity: 0.6;
}

select option {
    background: var(--input-bg);
    color: var(--text-dark);
}

@media (max-width: 768px) {
    .sidebar {
        margin-left: calc(-1 * var(--sidebar-width));
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .header-left h1 {
        font-size: 1.3rem;
    }
    
    .header-menu {
        display: none;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .content-area {
        padding: 15px;
    }
    
    table th, table td {
        padding: 8px 5px;
        font-size: 0.75rem;
    }
    
    table th {
        font-size: 0.7rem;
    }
    
    .action-buttons {
        flex-wrap: nowrap;
        gap: 3px;
    }
    
    .action-buttons .btn {
        padding: 4px 8px !important;
        font-size: 0.75rem !important;
    }
}

@media (max-width: 480px) {
    .content-area {
        padding: 10px;
    }
    
    .card {
        padding: 15px;
    }
    
    .btn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
    
    table th, table td {
        padding: 6px 3px;
        font-size: 0.7rem;
    }
    
    table th {
        font-size: 0.65rem;
    }
    
    .action-buttons .btn {
        padding: 3px 6px !important;
        font-size: 0.7rem !important;
    }
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: rgba(30, 41, 59, 0.95);
    backdrop-filter: blur(25px);
    margin: 5% auto;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.5);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    padding: 20px 25px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h4 {
    margin: 0;
    color: white;
    font-size: 1.3rem;
}

.modal-body {
    padding: 25px;
}

.modal-footer {
    padding: 15px 25px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.close {
    color: rgba(255, 255, 255, 0.6);
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s;
    line-height: 1;
}

.close:hover,
.close:focus {
    color: white;
}