/* ============================================
   SALARY CALCULATOR PRO - MAIN STYLESHEET
   Updated with new components and improvements
============================================ */

:root {
    --primary-color: #3498db;
    --primary-light: #5dade2;
    --primary-dark: #2980b9;
    
    --secondary-color: #2c3e50;
    --secondary-light: #34495e;
    --secondary-dark: #1a252f;
    
    --success-color: #27ae60;
    --success-light: #2ecc71;
    --success-dark: #229954;
    
    --danger-color: #e74c3c;
    --danger-light: #ec7063;
    --danger-dark: #c0392b;
    
    --warning-color: #f39c12;
    --warning-light: #f1c40f;
    --warning-dark: #d68910;
    
    --info-color: #17a2b8;
    --info-light: #5dade2;
    --info-dark: #138496;
    
    --light-bg: #f8f9fa;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    
    --border-radius: 10px;
    --box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    --transition: all 0.3s ease;
}

/* ====================
   BASE STYLES
==================== */
body {
    background-color: #f5f7fb;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ====================
   LAYOUT & CONTAINERS
==================== */
.container-fluid {
    flex: 1;
}

.main-wrapper {
    display: flex;
    min-height: calc(100vh - 56px); /* Adjust based on navbar height */
}

/* ====================
   SIDEBAR
==================== */
.sidebar {
    background: linear-gradient(180deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
    min-height: 100vh;
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
    padding-top: 20px;
    position: sticky;
    top: 0;
}

.sidebar .nav-link {
    color: #ecf0f1;
    padding: 12px 20px;
    margin: 2px 10px;
    border-radius: 8px;
    transition: var(--transition);
    display: flex;
    align-items: center;
}

.sidebar .nav-link:hover {
    background-color: rgba(255,255,255,0.1);
    color: #fff;
    transform: translateX(5px);
}

.sidebar .nav-link.active {
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

.sidebar .nav-link i {
    width: 25px;
    text-align: center;
}

.sidebar-sticky {
    position: sticky;
    top: 0;
    height: calc(100vh - 48px);
    padding-top: 0.5rem;
    overflow-x: hidden;
    overflow-y: auto;
}

/* Avatar circle in sidebar */
.avatar-circle {
    width: 80px;
    height: 80px;
    font-size: 2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--info-color));
    color: white;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

/* ====================
   NAVBAR
==================== */
.navbar {
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 0.75rem 1rem;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.25rem;
}

.navbar-nav .nav-link {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: var(--transition);
}

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

.navbar-nav .nav-link.active {
    background-color: rgba(255,255,255,0.15);
}

/* Dropdown menus */
.dropdown-menu {
    border: none;
    box-shadow: var(--box-shadow);
    border-radius: var(--border-radius);
    padding: 0.5rem;
    margin-top: 0.5rem;
}

.dropdown-item {
    border-radius: 6px;
    padding: 0.5rem 1rem;
    transition: var(--transition);
}

.dropdown-item:hover {
    background-color: var(--light-bg);
}

/* Badge in navbar */
.navbar .badge {
    font-size: 0.65rem;
    padding: 0.25rem 0.5rem;
    position: relative;
    top: -2px;
}

/* ====================
   BREADCRUMB
==================== */
.breadcrumb {
    background-color: transparent;
    padding: 0.75rem 0;
    margin-bottom: 0;
}

.breadcrumb-item a {
    color: var(--gray-600);
    text-decoration: none;
    transition: var(--transition);
}

.breadcrumb-item a:hover {
    color: var(--primary-color);
}

.breadcrumb-item.active {
    color: var(--gray-800);
    font-weight: 500;
}

/* ====================
   CARDS
==================== */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 20px;
    transition: var(--transition);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.card-header {
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    border-radius: var(--border-radius) var(--border-radius) 0 0 !important;
    padding: 15px 20px;
    font-weight: 500;
    border-bottom: none;
}

.card-header h5 {
    margin-bottom: 0;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* Stat Cards */
.stat-card {
    border-left: 4px solid var(--primary-color);
    padding-left: 15px;
}

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

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

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

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

/* Cards in sidebar */
.sidebar .card {
    background-color: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    box-shadow: none;
    margin-bottom: 1rem;
}

.sidebar .card:hover {
    transform: none;
}

.sidebar .card-title {
    color: #ecf0f1;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 1rem;
}

/* ====================
   TABLES
==================== */
.table {
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-bottom: 0;
}

.table th {
    background-color: var(--gray-100);
    border-bottom: 2px solid var(--gray-300);
    font-weight: 600;
    color: var(--gray-800);
    padding: 1rem;
}

.table td {
    padding: 0.75rem 1rem;
    vertical-align: middle;
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0,0,0,0.02);
}

.table-hover tbody tr:hover {
    background-color: rgba(0,0,0,0.04);
}

.table-sm th,
.table-sm td {
    padding: 0.5rem 0.75rem;
}

/* Salary breakdown table */
.salary-breakdown tr td:first-child {
    width: 70%;
}

.salary-breakdown tr:last-child td {
    border-bottom: none;
}

/* ====================
   BUTTONS
==================== */
.btn {
    border-radius: 8px;
    padding: 10px 20px;
    font-weight: 500;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--primary-dark) 100%);
}

.btn-primary:hover {
    background: linear-gradient(90deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

.btn-success {
    background: linear-gradient(90deg, var(--success-color) 0%, var(--success-dark) 100%);
}

.btn-danger {
    background: linear-gradient(90deg, var(--danger-color) 0%, var(--danger-dark) 100%);
}

.btn-warning {
    background: linear-gradient(90deg, var(--warning-color) 0%, var(--warning-dark) 100%);
}

.btn-info {
    background: linear-gradient(90deg, var(--info-color) 0%, var(--info-dark) 100%);
}

.btn-outline-primary {
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline-primary:hover {
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-color: var(--primary-color);
}

/* Button sizes */
.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.1rem;
}

/* Button groups */
.btn-group .btn {
    border-radius: 0;
}

.btn-group .btn:first-child {
    border-top-left-radius: 8px;
    border-bottom-left-radius: 8px;
}

.btn-group .btn:last-child {
    border-top-right-radius: 8px;
    border-bottom-right-radius: 8px;
}

/* ====================
   FORMS
==================== */
.form-control, .form-select {
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    padding: 12px 15px;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(52, 152, 219, 0.25);
    transform: translateY(-2px);
}

.form-label {
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.form-text {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* Form validation */
.was-validated .form-control:valid,
.form-control.is-valid {
    border-color: var(--success-color);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%2327ae60' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e");
}

.was-validated .form-control:invalid,
.form-control.is-invalid {
    border-color: var(--danger-color);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23e74c3c'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23e74c3c' stroke='none'/%3e%3c/svg%3e");
}

/* ====================
   ALERTS & NOTIFICATIONS
==================== */
.alert {
    border-radius: 10px;
    border: none;
    padding: 1rem 1.25rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.alert-success {
    background-color: rgba(39, 174, 96, 0.1);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

.alert-danger {
    background-color: rgba(231, 76, 60, 0.1);
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
}

.alert-warning {
    background-color: rgba(243, 156, 18, 0.1);
    color: var(--warning-color);
    border-left: 4px solid var(--warning-color);
}

.alert-info {
    background-color: rgba(23, 162, 184, 0.1);
    color: var(--info-color);
    border-left: 4px solid var(--info-color);
}

.alert-primary {
    background-color: rgba(52, 152, 219, 0.1);
    color: var(--primary-color);
    border-left: 4px solid var(--primary-color);
}

/* Toast notifications */
.toast {
    border-radius: 8px;
    border: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* ====================
   BADGES
==================== */
.badge {
    border-radius: 10px;
    padding: 0.35em 0.65em;
    font-weight: 500;
    font-size: 0.75em;
}

.badge-pill {
    border-radius: 50rem;
}

/* ====================
   PROGRESS BARS
==================== */
.progress {
    border-radius: 10px;
    height: 10px;
    background-color: var(--gray-200);
    overflow: hidden;
}

.progress-bar {
    border-radius: 10px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transition: width 0.6s ease;
}

/* ====================
   NET SALARY DISPLAY
==================== */
.net-salary {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--success-color);
}

.net-salary-cdf {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* ====================
   LOADER & SPINNER
==================== */
.loader {
    border: 4px solid var(--gray-200);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

.spinner-border {
    width: 3rem;
    height: 3rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ====================
   MODALS
==================== */
.modal-content {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.modal-header {
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    border-bottom: none;
    padding: 1.25rem 1.5rem;
}

.modal-title {
    font-weight: 600;
    margin-bottom: 0;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid var(--gray-300);
    padding: 1rem 1.5rem;
}

/* ====================
   FOOTER
==================== */
.footer {
    background-color: var(--dark-color);
    color: white;
    padding: 1.5rem 0;
    margin-top: auto;
}

.footer a {
    color: var(--gray-400);
    text-decoration: none;
    transition: var(--transition);
}

.footer a:hover {
    color: white;
}

/* ====================
   BACK TO TOP BUTTON
==================== */
#btn-back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: none;
    z-index: 1000;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transition: var(--transition);
}

#btn-back-to-top.show {
    display: block;
    animation: fadeIn 0.3s;
}

#btn-back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ====================
   PRINT STYLES
==================== */
@media print {
    .sidebar,
    .navbar,
    .btn:not(.print-btn),
    .footer,
    #btn-back-to-top,
    .modal,
    .breadcrumb,
    .no-print {
        display: none !important;
    }
    
    .card {
        box-shadow: none !important;
        border: 1px solid var(--gray-300) !important;
        break-inside: avoid;
    }
    
    .card-header {
        background: var(--gray-100) !important;
        color: var(--gray-900) !important;
    }
    
    .table {
        border: 1px solid var(--gray-300);
    }
    
    .table th {
        background-color: var(--gray-100) !important;
        color: var(--gray-900) !important;
        -webkit-print-color-adjust: exact;
    }
    
    body {
        background-color: white !important;
        font-size: 12pt;
    }
    
    .container-fluid,
    main {
        padding: 0 !important;
        margin: 0 !important;
        width: 100% !important;
    }
    
    .row {
        display: block !important;
    }
    
    .col-md-3,
    .col-md-9,
    .col-lg-2,
    .col-lg-10 {
        width: 100% !important;
        max-width: 100% !important;
        flex: 0 0 100% !important;
    }
    
    /* Page breaks */
    .page-break {
        page-break-before: always;
    }
    
    .avoid-break {
        page-break-inside: avoid;
    }
}

/* ====================
   RESPONSIVE STYLES
==================== */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        z-index: 1000;
        width: 250px;
        transform: translateX(-100%);
        transition: transform 0.3s ease-in-out;
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .sidebar-backdrop {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0,0,0,0.5);
        z-index: 999;
        display: none;
    }
    
    .sidebar-backdrop.show {
        display: block;
    }
    
    main {
        padding: 15px !important;
    }
    
    .card-header h5 {
        font-size: 1.1rem;
    }
    
    .navbar-brand span {
        display: none;
    }
    
    .table-responsive {
        border-radius: var(--border-radius);
        border: 1px solid var(--gray-300);
    }
    
    #btn-back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (min-width: 769px) {
    .sidebar {
        display: block !important;
    }
}

/* ====================
   UTILITY CLASSES
==================== */
.text-primary { color: var(--primary-color) !important; }
.bg-primary { background-color: var(--primary-color) !important; }

.text-secondary { color: var(--secondary-color) !important; }
.bg-secondary { background-color: var(--secondary-color) !important; }

.text-success { color: var(--success-color) !important; }
.bg-success { background-color: var(--success-color) !important; }

.text-danger { color: var(--danger-color) !important; }
.bg-danger { background-color: var(--danger-color) !important; }

.text-warning { color: var(--warning-color) !important; }
.bg-warning { background-color: var(--warning-color) !important; }

.text-info { color: var(--info-color) !important; }
.bg-info { background-color: var(--info-color) !important; }

/* Shadows */
.shadow-sm { box-shadow: 0 2px 4px rgba(0,0,0,0.1) !important; }
.shadow { box-shadow: var(--box-shadow) !important; }
.shadow-lg { box-shadow: 0 10px 30px rgba(0,0,0,0.15) !important; }

/* Transitions */
.transition { transition: var(--transition); }
.transition-slow { transition: all 0.5s ease; }
.transition-fast { transition: all 0.15s ease; }

/* Border radius */
.rounded { border-radius: var(--border-radius) !important; }
.rounded-lg { border-radius: calc(var(--border-radius) * 1.5) !important; }
.rounded-sm { border-radius: calc(var(--border-radius) * 0.5) !important; }

/* Z-index */
.z-1 { z-index: 1; }
.z-2 { z-index: 2; }
.z-3 { z-index: 3; }
.z-10 { z-index: 10; }
.z-100 { z-index: 100; }
.z-1000 { z-index: 1000; }

/* ====================
   CUSTOM COMPONENTS
==================== */

/* Salary slip preview */
.salary-slip-preview {
    background: white;
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    padding: 2rem;
}

/* Calculator display */
.calculator-display {
    background: var(--gray-900);
    color: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    font-family: 'Courier New', monospace;
    font-size: 1.5rem;
    text-align: right;
    margin-bottom: 1rem;
}

/* Status indicators */
.status-indicator {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 0.5rem;
}

.status-active { background-color: var(--success-color); }
.status-pending { background-color: var(--warning-color); }
.status-inactive { background-color: var(--danger-color); }
.status-draft { background-color: var(--gray-500); }

/* Tooltips */
.custom-tooltip {
    position: relative;
    display: inline-block;
    border-bottom: 1px dotted var(--gray-600);
    cursor: help;
}

.custom-tooltip .tooltip-text {
    visibility: hidden;
    width: 200px;
    background-color: var(--gray-800);
    color: white;
    text-align: center;
    border-radius: 6px;
    padding: 5px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -100px;
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 0.875rem;
    line-height: 1.4;
}

.custom-tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* Hover effects */
.hover-lift {
    transition: transform 0.2s ease;
}

.hover-lift:hover {
    transform: translateY(-3px);
}

.hover-grow {
    transition: transform 0.2s ease;
}

.hover-grow:hover {
    transform: scale(1.05);
}

/* Gradient backgrounds */
.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--info-color)) !important;
}

.bg-gradient-success {
    background: linear-gradient(135deg, var(--success-color), var(--info-light)) !important;
}

.bg-gradient-warning {
    background: linear-gradient(135deg, var(--warning-color), var(--danger-light)) !important;
}

/* Animation classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

.slide-in-left {
    animation: slideInLeft 0.5s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.5s ease-out;
}

@keyframes slideInLeft {
    from { transform: translateX(-30px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes slideInRight {
    from { transform: translateX(30px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ====================
   DARK MODE SUPPORT
   (Future implementation)
==================== */
@media (prefers-color-scheme: dark) {
    .dark-mode {
        --light-bg: #1a1a1a;
        --gray-100: #2d2d2d;
        --gray-200: #3d3d3d;
        --gray-300: #4d4d4d;
        --gray-400: #5d5d5d;
        --gray-500: #7d7d7d;
        --gray-600: #9d9d9d;
        --gray-700: #adadad;
        --gray-800: #cdcdcd;
        --gray-900: #ededed;
    }
}