:root {
    /* Brand colors */
    --primary-color: #fd7e14;
    --primary-dark: #e55d0e;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #0dcaf0;
    
    /* Light mode colors */
    --bg-color: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-color: #212529;
    --text-muted: #6c757d;
    --border-color: #dee2e6;
    --card-bg: #ffffff;
    --input-bg: #ffffff;
    --navbar-bg: var(--primary-color);
    --footer-bg: #f8f9fa;
    
    /* Legacy support */
    --light-color: var(--bg-secondary);
    --dark-color: var(--text-color);
    
    /* Layout */
    --border-radius: 0.5rem;
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --box-shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
    --transition: all 0.15s ease-in-out;
}

/* Dark mode colors */
[data-theme="dark"] {
    --bg-color: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --text-color: #e6edf3;
    --text-muted: #7d8590;
    --border-color: #30363d;
    --card-bg: #161b22;
    --input-bg: #0d1117;
    --navbar-bg: #0d1117;
    --footer-bg: #161b22;
    
    /* Dark mode specific shadows */
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.3);
    --box-shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.4);
}

/* System preference based dark mode (only applies when no explicit theme is set) */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme]) {
        --bg-color: #0d1117;
        --bg-secondary: #161b22;
        --bg-tertiary: #21262d;
        --text-color: #e6edf3;
        --text-muted: #7d8590;
        --border-color: #30363d;
        --card-bg: #161b22;
        --input-bg: #0d1117;
        --navbar-bg: #0d1117;
        --footer-bg: #161b22;
        
        --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.3);
        --box-shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.4);
    }
}

/* Explicit light theme override */
[data-theme="light"] {
    --bg-color: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-color: #212529;
    --text-muted: #6c757d;
    --border-color: #dee2e6;
    --card-bg: #ffffff;
    --input-bg: #ffffff;
    --navbar-bg: var(--primary-color);
    --footer-bg: #f8f9fa;
    
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --box-shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
}

/* Base styles */
html {
    font-size: 14px;
    position: relative;
    min-height: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: background-color var(--transition), color var(--transition);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.lead {
    font-size: 1.25rem;
    font-weight: 300;
}

/* Bootstrap color overrides */
.bg-primary {
    background-color: var(--primary-color) !important;
}

.text-primary {
    color: var(--primary-color) !important;
}

.border-primary {
    border-color: var(--primary-color) !important;
}

/* Navigation */

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.navbar-nav .nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: var(--transition);
}

.navbar-nav .nav-link:hover {
    color: rgba(255, 255, 255, 0.8) !important;
}

/* Hero section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 4rem 0;
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.hero .lead {
    font-size: 1.5rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .hero .lead {
        font-size: 1.25rem;
    }
}

/* Cards */
.card {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    height: 100%;
    background-color: var(--card-bg);
    color: var(--text-color);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-lg);
}

.card-header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    color: var(--text-color);
}

.speaker-card {
    position: relative;
    overflow: hidden;
}

.speaker-card .card-img-top {
    height: 200px;
    object-fit: cover;
    transition: var(--transition);
}

.speaker-card:hover .card-img-top {
    transform: scale(1.05);
}

.speaker-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid white;
    box-shadow: var(--box-shadow);
}

.speaker-avatar-sm {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid white;
}

/* Expertise tags */
.expertise-tag {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    margin: 0.125rem;
    text-decoration: none;
    transition: var(--transition);
}

.expertise-tag:hover {
    background-color: var(--primary-dark);
    color: white;
    text-decoration: none;
}

.expertise-tag.selectable {
    cursor: pointer;
    border: 2px solid transparent;
}

.expertise-tag.selected {
    background-color: var(--success-color);
    border-color: var(--success-color);
}

/* Social media links */
.social-links {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.social-link {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.75rem;
    background-color: var(--bg-secondary);
    color: var(--text-color);
    text-decoration: none;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.social-link:hover {
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-color: var(--primary-color);
}



.social-link i {
    margin-right: 0.5rem;
}

/* Buttons */
.btn {
    font-weight: 500;
    padding: 0.5rem 1.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    border-width: 1px;
}

.btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1.125rem;
}

.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);
}

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

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

/* Forms */
.form-control, .form-select {
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    padding: 0.5rem 0.75rem;
    transition: var(--transition);
    background-color: var(--input-bg);
    color: var(--text-color);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(253, 126, 20, 0.25);
    background-color: var(--input-bg);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.invalid-feedback {
    display: block;
    font-size: 0.875rem;
}

/* File upload */
.file-upload-area {
    border: 2px dashed #ced4da;
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    background-color: var(--light-color);
    transition: var(--transition);
    cursor: pointer;
}

.file-upload-area:hover {
    border-color: var(--primary-color);
    background-color: rgba(253, 126, 20, 0.05);
}

.file-upload-area.dragover {
    border-color: var(--primary-color);
    background-color: rgba(253, 126, 20, 0.1);
}

/* Mentorship status badges */
.status-badge {
    padding: 0.375rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: capitalize;
}

.status-pending {
    background-color: rgba(255, 193, 7, 0.1);
    color: #b45309;
    border: 1px solid rgba(255, 193, 7, 0.3);
}

.status-active {
    background-color: rgba(25, 135, 84, 0.1);
    color: #0f5132;
    border: 1px solid rgba(25, 135, 84, 0.3);
}

.status-completed {
    background-color: rgba(13, 202, 240, 0.1);
    color: #055160;
    border: 1px solid rgba(13, 202, 240, 0.3);
}

.status-cancelled {
    background-color: rgba(220, 53, 69, 0.1);
    color: #58151c;
    border: 1px solid rgba(220, 53, 69, 0.3);
}

/* Statistics cards */
.stat-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    height: 100%;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.125rem;
    opacity: 0.9;
}

/* Responsive adjustments for statistics */
@media (max-width: 767px) {
    .stat-card {
        padding: 1.5rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .stat-label {
        font-size: 1rem;
    }
}

/* Search and filters */
.search-filters {
    background-color: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

.filter-group {
    margin-bottom: 1rem;
}

.filter-group:last-child {
    margin-bottom: 0;
}

/* Loading states */
.loading {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* HTMX loading indicators */
.htmx-request .loading {
    display: inline-block;
}

.htmx-request.loading {
    opacity: 0.6;
    pointer-events: none;
}

.htmx-indicator {
    opacity: 0;
    transition: opacity 200ms ease-in;
}

.htmx-request .htmx-indicator {
    opacity: 1;
}

.htmx-request.htmx-indicator {
    opacity: 1;
}

/* Email validation specific styles */
#email-validation-message.text-success {
    color: var(--success-color) !important;
}

#email-validation-message.text-danger {
    color: var(--danger-color) !important;
}

.input-validation-icon {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 5;
}

/* Custom expertise validation styles */
.custom-expertise-input {
    position: relative;
}

.custom-expertise-validation {
    position: absolute;
    right: 0;
    top: 0;
    z-index: 10;
    pointer-events: none;
}

.custom-expertise-message.text-info {
    color: var(--info-color) !important;
}

.custom-expertise-message.text-danger {
    color: var(--danger-color) !important;
}

.form-control.is-warning {
    border-color: var(--warning-color);
    box-shadow: 0 0 0 0.2rem rgba(255, 193, 7, 0.25);
}

/* Responsive utilities */
@media (max-width: 576px) {
    .hero {
        padding: 2rem 0;
    }

    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }

    .social-links {
        justify-content: center;
    }

    .speaker-avatar {
        width: 80px;
        height: 80px;
    }
}

/* Theme toggle styles */
.theme-toggle {
    position: relative;
    display: inline-block;
}

.theme-toggle-btn {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.8);
    padding: 0.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.theme-toggle-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
}

.theme-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-lg);
    min-width: 150px;
    z-index: 1000;
    display: none;
    padding: 0.5rem 0;
    margin-top: 0.25rem;
}

.theme-dropdown.show {
    display: block;
}

.theme-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    color: var(--text-color);
    text-decoration: none;
    cursor: pointer;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    font-size: 0.875rem;
}

.theme-option:hover {
    background-color: var(--bg-secondary);
}

.theme-option.active {
    background-color: var(--primary-color);
    color: white;
}

.theme-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

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

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

.slide-in {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

/* Accessibility improvements */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 0 0 4px 4px;
    z-index: 1000;
}

.skip-link:focus {
    top: 0;
}

/* Focus styles */
.btn:focus,
.form-control:focus,
.form-select:focus,
.expertise-tag:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .card {
        border: 2px solid var(--dark-color);
    }

    .btn {
        border-width: 2px;
    }

    .expertise-tag {
        border: 2px solid currentColor;
    }
}

/* Footer styles */
.footer {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    background-color: var(--footer-bg) !important;
    border-top: 1px solid var(--border-color);
    padding: 0;
    z-index: 10;
    color: var(--text-color);
}

.footer a {
    color: var(--text-muted);
    transition: color 0.15s ease-in-out;
}

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

.footer .container {
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.footer h6 {
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.footer p {
    font-size: 0.8rem;
    line-height: 1.4;
    margin-bottom: 0.25rem;
}

.footer ul {
    margin-bottom: 0;
}

.footer li {
    margin-bottom: 0.125rem;
    line-height: 1.3;
}

.footer li:last-child {
    margin-bottom: 0;
}

/* Consolidated dark mode component overrides */
[data-theme="dark"] {
    /* Bootstrap component overrides */
    .alert-info {
        background-color: rgba(13, 202, 240, 0.1);
        border-color: rgba(13, 202, 240, 0.2);
        color: #9eeaf9;
    }
    
    .alert-success {
        background-color: rgba(25, 135, 84, 0.1);
        border-color: rgba(25, 135, 84, 0.2);
        color: #75b798;
    }
    
    .alert-warning {
        background-color: rgba(255, 193, 7, 0.1);
        border-color: rgba(255, 193, 7, 0.2);
        color: #ffda6a;
    }
    
    .alert-danger {
        background-color: rgba(220, 53, 69, 0.1);
        border-color: rgba(220, 53, 69, 0.2);
        color: #ea868f;
    }
    
    .dropdown-menu {
        background-color: var(--card-bg);
        border-color: var(--border-color);
    }
    
    .dropdown-item {
        color: var(--text-color);
    }
    
    .dropdown-item:hover {
        background-color: var(--bg-secondary);
        color: var(--text-color);
    }
    
    .badge.bg-secondary {
        background-color: #6c757d !important;
        color: white;
    }
    
    .badge.bg-light {
        background-color: var(--bg-tertiary) !important;
        color: var(--text-color) !important;
    }
    
    .table {
        color: var(--text-color);
    }
    
    .table-striped > tbody > tr:nth-of-type(odd) > td,
    .table-striped > tbody > tr:nth-of-type(odd) > th {
        background-color: var(--bg-secondary);
    }
    
    .modal-content {
        background-color: var(--card-bg);
        border-color: var(--border-color);
    }
    
    .modal-header {
        border-bottom-color: var(--border-color);
    }
    
    .modal-footer {
        border-top-color: var(--border-color);
    }
    
    .list-group-item {
        background-color: var(--card-bg);
        border-color: var(--border-color);
        color: var(--text-color);
    }
    
    /* Text color overrides */
    .text-muted { color: var(--text-muted) !important; }
    .text-dark { color: var(--text-color) !important; }
    .text-light { color: var(--text-muted) !important; }
    .text-secondary { color: var(--text-muted) !important; }
    
    /* Typography */
    h1, h2, h3, h4, h5, h6 { color: var(--text-color); }
    p { color: var(--text-color); }
    .lead { color: var(--text-color); }
    .small, small { color: var(--text-muted); }
    .caption { color: var(--text-muted); }
    
    /* Cards */
    .card-title { color: var(--text-color); }
    .card-text { color: var(--text-color); }
    .card-subtitle { color: var(--text-muted); }
    
    /* Forms */
    .form-label { color: var(--text-color); }
    .form-text { color: var(--text-muted); }
    .form-control::placeholder { color: var(--text-muted); opacity: 0.8; }
    .form-select { color: var(--text-color); }
    
    /* Navigation */
    .nav-link { color: var(--text-muted); }
    .nav-link:hover { color: var(--text-color); }
    .nav-link.active { color: var(--primary-color); }
    .navbar-dark .navbar-brand { color: var(--text-color); }
    
    /* Breadcrumb */
    .breadcrumb-item { color: var(--text-muted); }
    .breadcrumb-item.active { color: var(--text-color); }
    .breadcrumb-item a { color: var(--primary-color); }
    
    /* Social links */
    .social-link {
        background-color: var(--bg-tertiary);
        color: var(--text-color);
        border-color: var(--border-color);
    }
    
    .social-link:hover {
        background-color: var(--primary-color);
        color: white;
        border-color: var(--primary-color);
    }
    
    /* Statistics */
    .stat-label { color: var(--text-muted); }
    .stat-number { color: var(--text-color); }
    
    /* Speaker cards */
    .speaker-card .card-title { color: var(--text-color); }
    .speaker-card .card-text { color: var(--text-muted); }
    .speaker-card .small { color: var(--text-muted); }
    
    /* Search filters */
    .search-filters { color: var(--text-color); }
    .search-filters .form-label { color: var(--text-color); }
    
    /* Footer */
    .footer { color: var(--text-muted); }
    .footer h6 { color: var(--text-color); }
    
    /* Theme dropdown options in dark mode */
    .theme-option {
        color: var(--text-color);
    }
    
    .theme-option[data-theme="light"] {
        color: #e1e6eb; /* Always dark text for Light option in dark mode */
    }
    
    .theme-option[data-theme="dark"] {
        color: #e6edf3; /* Always light text for Dark option in dark mode */
    }
    
    .theme-option[data-theme="system"] {
        color: var(--text-color); /* Use theme color for System option */
    }
}

/* Light mode theme dropdown options */
[data-theme="light"] .theme-option {
    color: var(--text-color);
}

[data-theme="light"] .theme-option[data-theme="light"] {
    color: #212529; /* Always dark text for Light option in light mode */
}

[data-theme="light"] .theme-option[data-theme="dark"] {
    color: #495057; /* Darker gray for Dark option in light mode for contrast */
}

[data-theme="light"] .theme-option[data-theme="system"] {
    color: var(--text-color); /* Use theme color for System option */
}

[data-theme="dark"] .footer p {
    color: var(--text-muted);
}

[data-theme="dark"] .footer a {
    color: var(--text-muted);
}

[data-theme="dark"] .footer a:hover {
    color: var(--primary-color);
}

/* Registration form text colors */
[data-theme="dark"] .step small {
    color: var(--text-muted);
}

[data-theme="dark"] .invalid-feedback {
    color: #ea868f;
}

[data-theme="dark"] .valid-feedback {
    color: #75b798;
}

/* Tab content text */
[data-theme="dark"] .tab-content {
    color: var(--text-color);
}

/* General link colors */
[data-theme="dark"] a:not(.btn):not(.nav-link):not(.dropdown-item):not(.social-link):not(.theme-option) {
    color: var(--primary-color);
}

[data-theme="dark"] a:not(.btn):not(.nav-link):not(.dropdown-item):not(.social-link):not(.theme-option):hover {
    color: var(--primary-dark);
}

/* Specific component text overrides */
[data-theme="dark"] .border-bottom {
    border-bottom-color: var(--border-color) !important;
}

[data-theme="dark"] .border-top {
    border-top-color: var(--border-color) !important;
}

[data-theme="dark"] .border {
    border-color: var(--border-color) !important;
}

/* Profile stats styling */
[data-theme="dark"] .stat-item .stat-number {
    color: var(--text-color);
}

[data-theme="dark"] .stat-item .stat-label {
    color: var(--text-muted);
}

/* Additional form element fixes */
[data-theme="dark"] .form-check-label {
    color: var(--text-color);
}

[data-theme="dark"] .form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

[data-theme="dark"] .form-control:focus {
    background-color: var(--input-bg);
    border-color: var(--primary-color);
    color: var(--text-color);
}

[data-theme="dark"] .form-select:focus {
    background-color: var(--input-bg);
    border-color: var(--primary-color);
    color: var(--text-color);
}

/* Input group text */
[data-theme="dark"] .input-group-text {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-color);
}

/* Help text and form descriptions */
[data-theme="dark"] .help-text,
[data-theme="dark"] .description {
    color: var(--text-muted);
}

/* Table header text */
[data-theme="dark"] .table th {
    color: var(--text-color);
    border-color: var(--border-color);
}

[data-theme="dark"] .table td {
    color: var(--text-color);
    border-color: var(--border-color);
}

/* Pagination */
[data-theme="dark"] .pagination .page-link {
    background-color: var(--card-bg);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .pagination .page-link:hover {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .pagination .page-item.active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* Progress bars */
[data-theme="dark"] .progress {
    background-color: var(--bg-secondary);
}

[data-theme="dark"] .progress-bar {
    background-color: var(--primary-color);
}

/* Close button */
[data-theme="dark"] .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

/* Spinner colors */
[data-theme="dark"] .spinner-border {
    color: var(--primary-color);
}

[data-theme="dark"] .spinner-border.text-muted {
    color: var(--text-muted) !important;
}

/* Code and pre elements */
[data-theme="dark"] code {
    background-color: var(--bg-secondary);
    color: #f97583;
}

[data-theme="dark"] pre {
    background-color: var(--bg-secondary);
    color: var(--text-color);
    border-color: var(--border-color);
}

/* Blockquote */
[data-theme="dark"] blockquote {
    border-left-color: var(--border-color);
    color: var(--text-muted);
}

/* HR elements */
[data-theme="dark"] hr {
    border-color: var(--border-color);
}

/* Mark/highlight */
[data-theme="dark"] mark {
    background-color: rgba(255, 193, 7, 0.3);
    color: var(--text-color);
}

/* Hero section dark mode - keep original gradient */
[data-theme="dark"] .hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

[data-theme="dark"] .hero h1 {
    color: white;
}

[data-theme="dark"] .hero .lead {
    color: rgba(255, 255, 255, 0.9);
}

/* Navbar dark mode */
[data-theme="dark"] .navbar-dark {
    background-color: var(--navbar-bg) !important;
}

[data-theme="dark"] .navbar-dark .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.8);
}

[data-theme="dark"] .navbar-dark .navbar-nav .nav-link:hover {
    color: rgba(255, 255, 255, 1);
}

[data-theme="dark"] .navbar-dark .navbar-brand {
    color: white;
}

/* Button text color fixes */
[data-theme="dark"] .btn-outline-secondary {
    color: var(--text-color);
    border-color: var(--border-color);
}

[data-theme="dark"] .btn-outline-secondary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: white;
}

/* File upload area */
[data-theme="dark"] .file-upload-area {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .file-upload-area:hover {
    border-color: var(--primary-color);
    background-color: rgba(253, 126, 20, 0.05);
}

/* Accordion */
[data-theme="dark"] .accordion-item {
    background-color: var(--card-bg);
    border-color: var(--border-color);
}

[data-theme="dark"] .accordion-header button {
    background-color: var(--bg-secondary);
    color: var(--text-color);
}

[data-theme="dark"] .accordion-body {
    background-color: var(--card-bg);
    color: var(--text-color);
}

/* Tooltip */
[data-theme="dark"] .tooltip .tooltip-inner {
    background-color: var(--bg-tertiary);
    color: var(--text-color);
}

/* Popover */
[data-theme="dark"] .popover {
    background-color: var(--card-bg);
    border-color: var(--border-color);
}

[data-theme="dark"] .popover-header {
    background-color: var(--bg-secondary);
    border-bottom-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .popover-body {
    color: var(--text-color);
}

/* Ensure content doesn't get covered by absolute footer */
body {
    position: relative;
    min-height: 100vh;
    padding-bottom: 120px; /* Adjust based on footer height */
}

main {
    padding-bottom: 2rem;
}

/* Responsive footer adjustments */
@media (max-width: 767.98px) {
    body {
        padding-bottom: 140px; /* Slightly more padding on mobile due to stacked layout */
    }

    .footer .container {
        padding-top: 0.75rem;
        padding-bottom: 0.75rem;
    }

    .footer .row.gy-2 > * {
        margin-bottom: 0.75rem;
    }

    .footer .row.gy-2 > *:last-child {
        margin-bottom: 0;
    }
}

/* Registration Form Styles */

/* Multi-step form steps */
.step {
    position: relative;
    margin-bottom: 1rem;
}

.step-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #e9ecef;
    color: #6c757d;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 0.5rem;
    font-weight: bold;
    transition: all 0.3s ease;
}

.step.active .step-circle {
    background-color: var(--bs-primary);
    color: white;
}

.step.completed .step-circle {
    background-color: var(--bs-success);
    color: white;
}

/* Expertise grid */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.5rem;
    max-height: 300px;
    overflow-y: auto;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    background-color: var(--bg-secondary);
}

.expertise-item {
    background: var(--card-bg);
    padding: 0.5rem;
    border-radius: 0.25rem;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
    color: var(--text-color);
}

.expertise-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--box-shadow);
}

.expertise-item .form-check-label {
    color: var(--text-color);
    cursor: pointer;
}

.expertise-item .form-check-input:checked ~ .form-check-label {
    color: var(--text-color);
    font-weight: 500;
}

/* Speaker type selection cards */
.speaker-type-card {
    border: 2px solid #dee2e6 !important;
    transition: all 0.2s ease-in-out !important;
    position: relative;
    user-select: none;
    pointer-events: all;
}

.speaker-type-card:hover:not(.selected) {
    border-color: var(--primary-color) !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 4px 12px rgba(253, 126, 20, 0.15) !important;
}

/* Selected state with high specificity */
.speaker-type-card.selected,
.speaker-type-card.selected:hover,
.speaker-type-card.selected:active,
.speaker-type-card.selected:focus,
/* Ensure highlight persists when radio is checked, even without .selected class */
.speaker-type-card:has(.speaker-type-radio:checked),
.speaker-type-card:has(.speaker-type-radio:checked):hover,
.speaker-type-card:has(.speaker-type-radio:checked):active,
.speaker-type-card:has(.speaker-type-radio:checked):focus {
    border-color: var(--primary-color) !important;
    background-color: rgba(253, 126, 20, 0.08) !important;
    box-shadow: 0 4px 16px rgba(253, 126, 20, 0.25) !important;
    transform: translateY(-2px) !important;
}

.speaker-type-card.selected .speaker-type-icon {
    color: var(--primary-color) !important;
    transform: scale(1.15) !important;
}

.speaker-type-card.selected .card-body {
    position: relative;
}

/* Check mark for selected state */
.speaker-type-card.selected::before {
    content: '\f26b'; /* Bootstrap check circle fill icon */
    font-family: 'bootstrap-icons' !important;
    position: absolute !important;
    top: 10px !important;
    right: 10px !important;
    color: var(--primary-color) !important;
    font-size: 1.4rem !important;
    font-weight: bold !important;
    z-index: 10 !important;
    background-color: white !important;
    border-radius: 50% !important;
    width: 28px !important;
    height: 28px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1) !important;
}

.speaker-type-icon {
    color: var(--primary-color) !important;
    transition: all 0.2s ease-in-out !important;
}


/* Active/mousedown state for immediate feedback */
.speaker-type-card:active {
    transform: translateY(-1px) !important;
    box-shadow: 0 2px 8px rgba(253, 126, 20, 0.2) !important;
}

/* Form validation styles */
.is-invalid {
    border-color: var(--bs-danger) !important;
    box-shadow: 0 0 0 0.2rem rgba(var(--bs-danger-rgb), 0.25) !important;
}

.validation-error {
    margin-top: 0.25rem;
}

/* Registration Step 5 - Confirmation Page Styles */
.success-checkmark {
    animation: checkmark-bounce 0.6s ease-in-out;
}

@keyframes checkmark-bounce {
    0% { transform: scale(0); opacity: 0; }
    50% { transform: scale(1.2); opacity: 0.8; }
    100% { transform: scale(1); opacity: 1; }
}

.form-step[data-step="5"] .card {
    border: 1px solid rgba(var(--bs-success-rgb), 0.2);
}

.form-step[data-step="5"] .card-header {
    background-color: rgba(var(--bs-success-rgb), 0.1);
    border-bottom-color: rgba(var(--bs-success-rgb), 0.2);
}

/* Step 5 specific button styling */
.form-step[data-step="5"] .btn {
    font-weight: 600;
    padding: 0.75rem 2rem;
    border-radius: var(--border-radius);
    transition: all 0.3s ease-in-out;
    box-shadow: var(--box-shadow);
}

.form-step[data-step="5"] .btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-lg);
}

.form-step[data-step="5"] .btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border: none;
}

.form-step[data-step="5"] .btn-outline-primary:hover {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
}

/* Success badge styling for step 5 */
.form-step[data-step="5"] .badge {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
}

/* Expertise tags in step 5 */
.form-step[data-step="5"] .expertise-tag {
    font-size: 0.8rem;
    padding: 0.3rem 0.6rem;
}

/* Heart icon animation */
.form-step[data-step="5"] .text-danger {
    animation: heart-beat 2s infinite;
}

@keyframes heart-beat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Enhanced Step 5 animations and effects */
.form-step[data-step="5"] .success-checkmark {
    animation: success-zoom 0.6s ease-out;
}

@keyframes success-zoom {
    0% { transform: scale(0); opacity: 0; }
    50% { transform: scale(1.1); opacity: 0.8; }
    100% { transform: scale(1); opacity: 1; }
}

.form-step[data-step="5"] .hover-lift {
    transition: all 0.3s ease-in-out;
}

.form-step[data-step="5"] .hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 0.5rem 2rem rgba(0, 0, 0, 0.1);
}

.form-step[data-step="5"] .card {
    border: 1px solid rgba(var(--primary-color), 0.1);
}

.form-step[data-step="5"] .card:hover {
    border-color: var(--primary-color);
}

/* Step 5 gradient backgrounds */
.form-step[data-step="5"] .bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
}

.form-step[data-step="5"] .bg-gradient-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #146c43 100%);
}

.form-step[data-step="5"] .bg-gradient-info {
    background: linear-gradient(135deg, var(--info-color) 0%, #087990 100%);
}

/* Enhanced alert styling for step 5 */
.form-step[data-step="5"] .alert {
    border: none;
    border-left: 4px solid;
}

.form-step[data-step="5"] .alert-info {
    border-left-color: var(--info-color);
    background: linear-gradient(135deg, rgba(13, 202, 240, 0.1) 0%, rgba(13, 202, 240, 0.05) 100%);
}

/* Animated pulse effect */
.animate__pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

/* Mentorship System Styles */
.mentorship-filters {
    background-color: var(--card-bg);
    border-color: var(--border-color);
}

.mentor-card {
    background-color: var(--card-bg);
    border-color: var(--border-color);
    transition: var(--transition);
    position: relative;
}

.mentor-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-lg);
}

.mentor-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    object-fit: cover;
}

.mentor-avatar-placeholder {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background-color: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 1.5rem;
}

/* Status badges */
.status-available {
    background-color: var(--success-color);
    color: white;
    border: none;
}

.status-busy {
    background-color: var(--warning-color);
    color: white;
    border: none;
}

.status-unavailable {
    background-color: var(--secondary-color);
    color: white;
    border: none;
}

/* Expertise filter grid */
.expertise-filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 0.5rem;
}

.expertise-filter-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.5rem;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    font-size: 0.875rem;
}

.expertise-filter-item:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.expertise-filter-item.selected {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    font-weight: 500;
}

.expertise-filter-item label {
    cursor: pointer;
    margin: 0;
    display: block;
}

/* Expertise tags in mentor cards */
.expertise-tag-sm {
    font-size: 0.75rem;
    padding: 0.125rem 0.375rem;
    margin: 0.125rem 0.25rem 0.125rem 0;
}

.expertise-tag.shared {
    background-color: var(--success-color);
    border-color: var(--success-color);
}

/* Mentor stats */
.mentor-stats {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: 0.75rem;
    margin: 0 -0.5rem;
}

.mentor-stats .col {
    border-right: 1px solid var(--border-color);
}

.mentor-stats .col:last-child {
    border-right: none;
}

/* Social links in mentor cards */
.social-link-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
    margin-right: 0.25rem;
}

/* Request status indicators */
.request-status {
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.request-pending {
    background-color: rgba(255, 193, 7, 0.1);
    color: var(--warning-color);
    border: 1px solid rgba(255, 193, 7, 0.3);
}

.request-accepted {
    background-color: rgba(25, 135, 84, 0.1);
    color: var(--success-color);
    border: 1px solid rgba(25, 135, 84, 0.3);
}

.request-declined {
    background-color: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
    border: 1px solid rgba(220, 53, 69, 0.3);
}

/* Modal enhancements */
.mentor-summary {
    background-color: var(--bg-secondary) !important;
    border-color: var(--border-color) !important;
}

.expertise-selection {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.5rem;
}

.expertise-check {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.5rem;
    transition: var(--transition);
}

.expertise-check:hover {
    background-color: var(--bg-tertiary);
}

.expertise-check input:checked + label {
    color: var(--primary-color);
    font-weight: 500;
}

/* List view styles */
.list-view .row {
    display: block;
}

.list-view .col-md-6,
.list-view .col-lg-4 {
    width: 100%;
    max-width: none;
}

.list-view .mentor-card {
    margin-bottom: 1rem;
}

.list-view .mentor-card .card-body {
    padding: 1rem;
}

.list-view .mentor-card .d-flex {
    flex-wrap: nowrap;
}

/* Responsive design */
@media (max-width: 768px) {
    .expertise-filter-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
    
    .mentor-avatar {
        width: 50px;
        height: 50px;
    }
    
    .mentor-avatar-placeholder {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
    
    .mentor-stats {
        margin: 0;
    }
    
    .expertise-selection {
        grid-template-columns: 1fr;
    }
}

/* Dark mode specific overrides */
[data-theme="dark"] {
    .mentor-summary {
        background-color: var(--bg-tertiary) !important;
        border-color: var(--border-color) !important;
        color: var(--text-color);
    }
    
    .expertise-check {
        background-color: var(--bg-tertiary);
        border-color: var(--border-color);
        color: var(--text-color);
    }
    
    .expertise-check:hover {
        background-color: var(--bg-secondary);
    }
    
    .mentor-stats {
        background-color: var(--bg-tertiary);
    }
    
    .expertise-filter-item {
        color: var(--text-color);
    }
    
    .modal-content {
        background-color: var(--card-bg);
        color: var(--text-color);
    }
}

/* Print styles */
@media print {
    .navbar, .footer, .btn {
        display: none !important;
    }

    .container {
        max-width: none !important;
    }

    .card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #000;
    }
}

/* Mentorship Connection Modal Styles */
.modal-container {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1050;
    backdrop-filter: blur(4px);
    animation: fadeIn 0.2s ease-in-out;
}

[data-theme="dark"] .modal-container {
    background: rgba(0, 0, 0, 0.75);
}

.modal-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-lg);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease-out;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

/* Mentor Avatar Styles */
.mentor-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
}

.mentor-avatar-placeholder {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-muted);
}

/* Expertise Selection Grid */
.expertise-selection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 0.75rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    max-height: 300px;
    overflow-y: auto;
}

.expertise-selection-grid .form-check {
    margin: 0;
}

.expertise-selection-grid .form-check-label {
    font-size: 0.875rem;
    cursor: pointer;
    user-select: none;
}

/* Request Card Styles */
.request-card {
    transition: all 0.2s ease-in-out;
    border-left: 4px solid transparent;
}

.request-card:hover {
    border-left-color: var(--primary-color);
}

.request-card .badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.35rem 0.65rem;
}

/* Request Status Badges */
.request-status {
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.request-pending {
    background: var(--warning-color);
    color: #000;
}

.request-active {
    background: var(--success-color);
    color: #fff;
}

.request-declined {
    background: var(--danger-color);
    color: #fff;
}

/* HTMX Indicator Styles */
.htmx-indicator {
    display: none;
}

.htmx-request .htmx-indicator {
    display: inline-block;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

/* Form Enhancements */
textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.form-text {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.25rem;
    font-size: 0.875rem;
}

/* Alert Enhancements */
.alert {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: var(--box-shadow);
}

.alert a.alert-link {
    font-weight: 600;
    text-decoration: underline;
}

/* Dark Mode Adjustments for Forms */
[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
    background-color: var(--input-bg);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
    background-color: var(--input-bg);
    border-color: var(--primary-color);
    color: var(--text-color);
}

[data-theme="dark"] .form-check-input {
    background-color: var(--input-bg);
    border-color: var(--border-color);
}

[data-theme="dark"] .form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

[data-theme="dark"] .btn-close {
    filter: invert(1);
}

/* Mobile Responsive Adjustments */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        max-height: 95vh;
    }

    .expertise-selection-grid {
        grid-template-columns: 1fr;
        max-height: 200px;
    }

    .request-card .d-flex.gap-2 {
        flex-direction: column;
    }

    .request-card .btn {
        width: 100%;
    }
}