/* Interconnect LMS - Main Stylesheet */

/* Import Inter font from Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* CSS Variables - Brand Colors & Bootstrap Override */
:root {
    /* Brand Colors */
    --primary-color: #1f4afa;
    --secondary-color: #d7d9d3;
    --white: #FFFFFF;
    --black: #000000;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    
    /* Bootstrap Override */
    --bs-primary: #1f4afa;
    --bs-primary-rgb: 31, 74, 250;
    --bs-secondary: #d7d9d3;
    --bs-success: #10b981;
    --bs-warning: #f59e0b;
    --bs-danger: #ef4444;
    --bs-info: #3b82f6;
    --bs-body-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --bs-body-font-weight: 500;
    --bs-border-radius: 8px;
    --bs-border-radius-sm: 6px;
    --bs-border-radius-lg: 12px;
    
    /* Shades */
    --primary-dark: #1a3dd4;
    --primary-light: #4d6ffb;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Spacing */
    --sidebar-width: 280px;
    --topbar-height: 70px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    font-weight: 500;
    line-height: 1.6;
    color: var(--gray-900);
    background-color: var(--gray-50);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--black);
}

h1 { font-size: 2.5rem; font-weight: 800; }
h2 { font-size: 2rem; font-weight: 800; }
h3 { font-size: 1.75rem; font-weight: 700; }
h4 { font-size: 1.5rem; font-weight: 700; }
h5 { font-size: 1.25rem; font-weight: 700; }
h6 { font-size: 1rem; font-weight: 700; }

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    gap: 0.5rem;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-dark);
    text-decoration: none;
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--gray-900);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--gray-300);
    text-decoration: none;
}

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

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

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

.btn-outline-primary:hover:not(:disabled) {
    background-color: var(--primary-color);
    color: var(--white);
    text-decoration: none;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--gray-700);
}

.form-label.required::after {
    content: ' *';
    color: var(--danger);
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.5;
    color: var(--gray-900);
    background-color: var(--white);
    border: 2px solid var(--gray-300);
    border-radius: 8px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(31, 74, 250, 0.1);
}

.form-control.is-invalid {
    border-color: var(--danger);
}

.form-control.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.invalid-feedback {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--danger);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

select.form-control {
    cursor: pointer;
}

/* Card Styles */
.card {
    background-color: var(--white);
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: box-shadow 0.2s ease;
}

.card:hover {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.card-header {
    padding: 1.25rem 1.5rem;
    background-color: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    font-weight: 700;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    padding: 1.25rem 1.5rem;
    background-color: var(--gray-50);
    border-top: 1px solid var(--gray-200);
}

/* Alert Styles */
.alert {
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid;
}

.alert-success {
    background-color: #d1fae5;
    border-color: var(--success);
    color: #065f46;
}

.alert-warning {
    background-color: #fef3c7;
    border-color: var(--warning);
    color: #92400e;
}

.alert-danger {
    background-color: #fee2e2;
    border-color: var(--danger);
    color: #991b1b;
}

.alert-info {
    background-color: #dbeafe;
    border-color: var(--info);
    color: #1e40af;
}

/* Badge Styles */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 12px;
}

.badge-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

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

.badge-warning {
    background-color: var(--warning);
    color: var(--white);
}

.badge-danger {
    background-color: var(--danger);
    color: var(--white);
}

.badge-secondary {
    background-color: var(--secondary-color);
    color: var(--gray-900);
}

/* Layout Styles */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.container-fluid {
    width: 100%;
    padding: 0 1.5rem;
}

/* Dashboard Layout */
.dashboard-wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background-color: var(--white);
    border-right: 1px solid var(--gray-200);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--gray-200);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.sidebar-logo img {
    max-width: 210px;
    height: auto;
    margin: auto;
}

.sidebar-client-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem;
    background-color: var(--gray-50);
    border-radius: 8px;
}

.sidebar-client-logo.clickable {
    cursor: pointer;
    transition: all 0.2s ease;
}

.sidebar-client-logo.clickable:hover {
    background-color: var(--gray-100);
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.sidebar-client-logo img {
    max-width: 100%;
    max-height: 50px;
}

.logo-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--gray-500);
    padding: 1rem;
    border: 2px dashed var(--gray-300);
    border-radius: 8px;
    background-color: var(--white);
    width: 100%;
}

.logo-placeholder i {
    font-size: 2rem;
    color: var(--primary-color);
}

.logo-placeholder span {
    font-size: 0.875rem;
    text-align: center;
    line-height: 1.4;
}

.sidebar-client-logo.clickable .logo-placeholder:hover i {
    transform: scale(1.1);
    transition: transform 0.2s ease;
}

.sidebar-nav {
    padding: 1rem 0;
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: var(--gray-700);
    text-decoration: none;
    transition: all 0.2s ease;
    gap: 0.75rem;
}

.sidebar-nav-item:hover {
    background-color: var(--gray-50);
    color: var(--primary-color);
    text-decoration: none;
}

.sidebar-nav-item.active {
    background-color: var(--primary-color);
    color: var(--white);
    font-weight: 600;
}

.sidebar-nav-item i {
    font-size: 1.25rem;
    width: 24px;
    text-align: center;
}

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

.topbar {
    background-color: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--topbar-height);
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.topbar-user-info {
    text-align: right;
}

.topbar-user-name {
    font-weight: 600;
    color: var(--gray-900);
}

.topbar-user-role {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.content-wrapper {
    padding: 2rem;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: 2rem;
}

.tab {
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    color: var(--gray-600);
    background-color: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: -2px;
}

.tab:hover {
    color: var(--primary-color);
}

.tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.d-flex { display: flex; }
.justify-content-between { justify-content: space-between; }
.align-items-center { align-items: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

/* Mobile Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .topbar {
        padding: 1rem;
    }
    
    .content-wrapper {
        padding: 1rem;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .tabs {
        flex-wrap: wrap;
        overflow-x: auto;
    }
}

/* Loading Spinner */
.spinner {
    border: 3px solid var(--gray-200);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 0.8s linear infinite;
}

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

.btn .spinner {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

/* ============================================
   ENHANCED FORM STYLING WITH BOOTSTRAP 5
   ============================================ */

/* Form Controls Enhancement */
.form-control,
.form-select {
    border-radius: 8px;
    border: 2px solid var(--gray-300);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.2s ease;
    font-family: 'Inter', sans-serif;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(31, 74, 250, 0.1);
}

.form-label {
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

/* Select2 Customization */
.select2-container--bootstrap-5 .select2-selection {
    border: 2px solid var(--gray-300);
    border-radius: 8px;
    min-height: 48px;
    padding: 0.5rem;
}

.select2-container--bootstrap-5.select2-container--focus .select2-selection,
.select2-container--bootstrap-5.select2-container--open .select2-selection {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(31, 74, 250, 0.1);
}

.select2-container--bootstrap-5 .select2-selection__rendered {
    padding-left: 0.5rem;
    font-weight: 500;
}

.select2-container--bootstrap-5 .select2-dropdown {
    border: 2px solid var(--primary-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.select2-container--bootstrap-5 .select2-results__option--highlighted {
    background-color: var(--primary-color);
}

.select2-container--bootstrap-5 .select2-search__field {
    border: 2px solid var(--gray-300);
    border-radius: 6px;
    padding: 0.5rem;
}

/* Checkbox & Radio Enhancement */
.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid var(--gray-400);
    border-radius: 4px;
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.form-check-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(31, 74, 250, 0.1);
}

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

/* Input Groups */
.input-group {
    border-radius: 8px;
    overflow: hidden;
}

.input-group-text {
    background-color: var(--gray-100);
    border: 2px solid var(--gray-300);
    font-weight: 600;
    color: var(--gray-700);
}

/* Bootstrap Cards Enhancement */
.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.card-header {
    background-color: var(--gray-50);
    border-bottom: 2px solid var(--gray-200);
    padding: 1.25rem 1.5rem;
    font-weight: 700;
    border-radius: 12px 12px 0 0 !important;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    background-color: var(--gray-50);
    border-top: 2px solid var(--gray-200);
    padding: 1rem 1.5rem;
    border-radius: 0 0 12px 12px !important;
}

/* Bootstrap Buttons Enhancement */
.btn {
    border-radius: 8px;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    font-family: 'Inter', sans-serif;
    transition: all 0.2s ease;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(31, 74, 250, 0.3);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Bootstrap Badges Enhancement */
.badge {
    padding: 0.5em 0.85em;
    font-weight: 600;
    border-radius: 6px;
    font-size: 0.85rem;
}

/* Bootstrap Alerts Enhancement */
.alert {
    border-radius: 8px;
    border: none;
    padding: 1rem 1.25rem;
    font-weight: 500;
}

.alert-primary {
    background-color: rgba(31, 74, 250, 0.1);
    color: var(--primary-dark);
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: #059669;
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: #d97706;
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: #dc2626;
}

.alert-info {
    background-color: rgba(59, 130, 246, 0.1);
    color: #2563eb;
}

/* Bootstrap Tables Enhancement */
.table {
    border-collapse: separate;
    border-spacing: 0;
}

.table thead th {
    background-color: var(--gray-100);
    border-bottom: 2px solid var(--gray-300);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
    padding: 1rem;
}

.table tbody tr {
    transition: background-color 0.2s ease;
}

.table tbody tr:hover {
    background-color: var(--gray-50);
}

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

/* Progress Bars Enhancement */
.progress {
    height: 10px;
    border-radius: 10px;
    background-color: var(--gray-200);
}

.progress-bar {
    background-color: var(--primary-color);
    border-radius: 10px;
    transition: width 0.6s ease;
}

/* Modal Enhancement */
.modal-content {
    border-radius: 12px;
    border: none;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.modal-header {
    border-bottom: 2px solid var(--gray-200);
    padding: 1.5rem;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 2px solid var(--gray-200);
    padding: 1.5rem;
}

/* Pagination Enhancement */
.pagination .page-link {
    border-radius: 6px;
    margin: 0 0.25rem;
    border: 2px solid var(--gray-300);
    color: var(--gray-700);
    font-weight: 600;
}

.pagination .page-link:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.pagination .page-item.active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Tooltips Enhancement */
.tooltip-inner {
    background-color: var(--gray-900);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    font-weight: 500;
}