/* Custom styles for the Mentorship Platform */

:root {
    --bs-border-radius: 0.5rem;
    --bs-border-radius-sm: 0.375rem;
    --bs-border-radius-lg: 0.75rem;
}

body {
    background-color: var(--bs-dark);
    color: var(--bs-light);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Navigation enhancements */
.navbar {
    border-bottom: 1px solid var(--bs-border-color);
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.5rem;
}

/* Card enhancements */
.card {
    border: 1px solid var(--bs-border-color);
    background-color: var(--bs-gray-900);
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    transition: box-shadow 0.15s ease-in-out;
}

.card:hover {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.card-header {
    background-color: var(--bs-gray-800);
    border-bottom: 1px solid var(--bs-border-color);
    font-weight: 500;
}

/* Form enhancements */
.form-control:focus,
.form-select:focus {
    border-color: var(--bs-primary);
    box-shadow: 0 0 0 0.2rem rgba(var(--bs-primary-rgb), 0.25);
}

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

/* Button enhancements */
.btn {
    font-weight: 500;
    border-radius: var(--bs-border-radius);
    transition: all 0.15s ease-in-out;
}

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

.btn-primary:hover {
    background-color: var(--bs-blue-600);
    border-color: var(--bs-blue-600);
    transform: translateY(-1px);
}

/* Badge enhancements */
.badge {
    font-weight: 500;
    padding: 0.5em 0.75em;
}

/* Table enhancements */
.table {
    color: var(--bs-light);
}

.table > :not(caption) > * > * {
    border-bottom-color: var(--bs-border-color);
}

.table-striped > tbody > tr:nth-of-type(odd) > td,
.table-striped > tbody > tr:nth-of-type(odd) > th {
    background-color: rgba(var(--bs-light-rgb), 0.05);
}

/* Alert enhancements */
.alert {
    border: none;
    border-radius: var(--bs-border-radius);
}

/* Progress bar enhancements */
.progress {
    background-color: var(--bs-gray-700);
    border-radius: var(--bs-border-radius);
}

/* Dashboard specific styles */
.dashboard-stat-card {
    transition: transform 0.2s ease-in-out;
}

.dashboard-stat-card:hover {
    transform: translateY(-2px);
}

/* Profile avatar placeholder */
.profile-avatar {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--bs-primary), var(--bs-info));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    font-weight: bold;
}

/* Session timeline */
.session-timeline {
    position: relative;
    padding-left: 2rem;
}

.session-timeline::before {
    content: '';
    position: absolute;
    left: 0.5rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--bs-border-color);
}

.session-timeline-item {
    position: relative;
    margin-bottom: 1.5rem;
}

.session-timeline-item::before {
    content: '';
    position: absolute;
    left: -1.75rem;
    top: 0.5rem;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--bs-primary);
    border: 2px solid var(--bs-dark);
}

/* Footer */
footer {
    margin-top: auto;
    border-top: 1px solid var(--bs-border-color);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .btn-group-vertical > .btn {
        margin-bottom: 0.5rem;
    }
}

/* Loading states */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Smooth transitions */
* {
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out;
}

/* Focus states for accessibility */
.btn:focus-visible,
.form-control:focus-visible,
.form-select:focus-visible {
    outline: 2px solid var(--bs-primary);
    outline-offset: 2px;
}

/* Custom scrollbar for webkit browsers */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bs-gray-800);
}

::-webkit-scrollbar-thumb {
    background: var(--bs-gray-600);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--bs-gray-500);
}

/* Animation keyframes */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

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

/* Status indicators */
.status-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 0.5rem;
}

.status-active {
    background-color: var(--bs-success);
}

.status-inactive {
    background-color: var(--bs-secondary);
}

.status-pending {
    background-color: var(--bs-warning);
}

/* Enhanced card borders */
.border-start {
    border-left-width: 3px !important;
}

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

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

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

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