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

:root {
    --bg-muted: #f5f6fb;
    --bg-surface: #ffffff;
    --text-primary: #1f2933;
    --text-secondary: #5f6c7b;
    --border-soft: #e3e8ef;
    --accent-primary: #2563eb;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --accent-info: #3b82f6;
    --accent-danger: #ef4444;
    --shadow-soft: 0 12px 30px rgba(15, 23, 42, 0.08);
    --shadow-subtle: 0 2px 12px rgba(15, 23, 42, 0.06);
    --radius-base: 16px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-muted);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Navbar */

.navbar {
    background: #1f2937;
    color: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-subtle);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.navbar-brand h2 {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.user-info {
    font-size: 0.95rem;
}

/* Main Container */
.main-container {
    display: flex;
    min-height: calc(100vh - 70px);
}

/* Sidebar */
.sidebar {
    width: 250px;
    background: var(--bg-surface);
    box-shadow: none;
    padding: 1.5rem 0;
    border-right: 1px solid var(--border-soft);
}

.sidebar .menu {
    list-style: none;
}

.sidebar .menu li {
    margin: 0.5rem 0;
}

.sidebar .menu li a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-left: 3px solid transparent;
    transition: color 0.2s, background 0.2s, border-color 0.2s;
}

.sidebar .menu li a:hover {
    background: rgba(37, 99, 235, 0.08);
    color: var(--accent-primary);
    border-left-color: var(--accent-primary);
}

.sidebar .menu li a i {
    margin-right: 0.75rem;
    width: 20px;
}

/* Content Area */
.content {
    flex: 1;
    padding: 2rem;
}

/* Page Header */
.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 2rem;
    color: var(--text-primary);
    font-weight: 600;
}

/* Dashboard Cards */
.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.card {
    background: var(--bg-surface);
    border-radius: var(--radius-base);
    padding: 1.5rem;
    box-shadow: var(--shadow-subtle);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    border: 1px solid var(--border-soft);
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-soft);
}

.card-icon {
    font-size: 2.5rem;
    color: var(--accent-primary);
    opacity: 0.9;
}

.card-content h3 {
    font-size: 1.9rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
    color: var(--text-primary);
}

.card-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.card-primary { border-left: 6px solid var(--accent-primary); }
.card-success { border-left: 6px solid var(--accent-success); }
.card-warning { border-left: 6px solid var(--accent-warning); }
.card-info { border-left: 6px solid var(--accent-info); }
.card-danger { border-left: 6px solid var(--accent-danger); }
.card-secondary { border-left: 6px solid var(--text-secondary); }

/* Dashboard Section */
.dashboard-section {
    background: var(--bg-surface);
    border-radius: var(--radius-base);
    padding: 1.5rem 1.75rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-subtle);
    border: 1px solid var(--border-soft);
}

.dashboard-section h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-soft);
    padding-bottom: 0.5rem;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 10px;
    text-decoration: none;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    transition: background 0.2s ease, transform 0.2s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary { background: var(--accent-primary); color: #fff; }
.btn-primary:hover { background: #1d4ed8; }

.btn-success { background: var(--accent-success); color: #fff; }
.btn-success:hover { background: #0f9a73; }

.btn-danger { background: var(--accent-danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }

.btn-warning { background: var(--accent-warning); color: #fff; }
.btn-warning:hover { background: #d97706; }

.btn-info { background: var(--accent-info); color: #fff; }
.btn-info:hover { background: #1d4ed8; }

.btn-secondary { background: #4b5563; color: #fff; }
.btn-secondary:hover { background: #374151; }

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

/* Tables */
.table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.data-table thead {
    background: #eef2f8;
}

.data-table th {
    padding: 0.85rem 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border-soft);
    letter-spacing: 0.01em;
}

.data-table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border-soft);
    color: var(--text-primary);
}

.data-table tbody tr:hover {
    background: rgba(59, 130, 246, 0.06);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent-primary);
}

.badge-primary { background: rgba(37, 99, 235, 0.12); color: var(--accent-primary); }
.badge-success { background: rgba(16, 185, 129, 0.12); color: var(--accent-success); }
.badge-danger { background: rgba(239, 68, 68, 0.12); color: var(--accent-danger); }
.badge-warning { background: rgba(245, 158, 11, 0.16); color: var(--accent-warning); }
.badge-info { background: rgba(59, 130, 246, 0.12); color: var(--accent-info); }
.badge-secondary { background: rgba(75, 85, 99, 0.12); color: #4b5563; }

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--radius-base);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border: 1px solid transparent;
}

.alert-success {
    background: rgba(16, 185, 129, 0.12);
    color: #0f5132;
    border-color: rgba(16, 185, 129, 0.3);
}

.alert-error {
    background: rgba(239, 68, 68, 0.12);
    color: #7f1d1d;
    border-color: rgba(239, 68, 68, 0.3);
}

.alert-info {
    background: rgba(59, 130, 246, 0.12);
    color: #1e3a8a;
    border-color: rgba(59, 130, 246, 0.3);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-soft);
    border-radius: 12px;
    font-size: 1rem;
    background: var(--bg-surface);
    color: var(--text-primary);
    transition: border 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

/* Login Page */

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at top, rgba(37, 99, 235, 0.18), transparent 55%), var(--bg-muted);
}


.login-box {
    background: var(--bg-surface);
    padding: 2.5rem;
    border-radius: var(--radius-base);
    box-shadow: var(--shadow-soft);
    width: 100%;
    max-width: 420px;
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.login-box h1 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

/* Slips Grid */
.slips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.slip-card {
    background: var(--bg-surface);
    border-radius: var(--radius-base);
    padding: 1.5rem;
    box-shadow: var(--shadow-subtle);
    border: 1px solid var(--border-soft);
    border-left: 5px solid var(--accent-primary);
}

.slip-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.slip-body {
    text-align: center;
    padding: 1.5rem 0;
}


.salary-amount {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}


.salary-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.slip-footer {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-soft);
}

/* Employee Info */
.employee-info {
    background: rgba(37, 99, 235, 0.05);
    padding: 1.5rem;
    border-radius: var(--radius-base);
    margin-top: 1rem;
    border: 1px solid rgba(37, 99, 235, 0.15);
}

.employee-info p {
    margin-bottom: 0.5rem;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(6px);
}

.modal-content {
    background: var(--bg-surface);
    margin: 5% auto;
    padding: 30px;
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-base);
    width: 90%;
    max-width: 600px;
    box-shadow: var(--shadow-soft);
    animation: modalSlideDown 0.3s ease-out;
}

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

.modal-content h2 {
    margin-bottom: 20px;
    color: var(--text-primary);
    font-size: 1.5rem;
    border-bottom: 1px solid var(--border-soft);
    padding-bottom: 10px;
}

.close {
    color: var(--text-secondary);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.2s;
}

.close:hover,
.close:focus {
    color: var(--accent-primary);
}

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 20px;
}

/* Responsive */
@media (max-width: 768px) {
    .main-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
    }
    
    .navbar {
        flex-direction: column;
        gap: 1rem;
    }
    
    .dashboard-cards {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
        margin: 10% auto;
        padding: 20px;
    }
}