/* Ortak CSS Stilleri */
:root {
    --bg-color: #fff;
    --text-color: #333;
    --card-bg: #fff;
    --border-color: #dee2e6;
    --shadow-color: rgba(0,0,0,.1);
    --cover-gradient: linear-gradient(45deg, #0d6efd, #0dcaf0);
    --bottom-nav-bg: #fff;
    --bottom-nav-border: #dee2e6;
    --bottom-nav-text: #6c757d;
    --bottom-nav-active: #0d6efd;
    --body-gradient: linear-gradient(180deg, #003366 0%, #0072c6 50%, #40B3FF 100%);
}

[data-bs-theme="dark"] {
    --bg-color: #212529;
    --text-color: #f8f9fa;
    --card-bg: #2c3034;
    --border-color: #373d44;
    --shadow-color: rgba(0,0,0,.3);
    --cover-gradient: linear-gradient(45deg, #1a1f24, #2c3034);
    --bottom-nav-bg: #2c3034;
    --bottom-nav-border: #495057;
    --bottom-nav-text: #adb5bd;
    --bottom-nav-active: #0d6efd;
    --body-gradient: linear-gradient(180deg, #2c3e50 0%, #34495e 100%);
}

body {
    background: var(--body-gradient);
    color: var(--text-color);
    min-height: 100vh;
    background-attachment: fixed;
}

.teacher-nav {
    background: var(--card-bg);
    box-shadow: 0 2px 4px var(--shadow-color);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1030;
}

.teacher-content {
    margin-top: 60px;
    margin-bottom: 60px;
}

.nav-link {
    color: var(--text-color);
    padding: 0.5rem 1rem;
}

.nav-link:hover {
    color: #0d6efd;
}

.nav-link.active {
    color: #0d6efd;
    font-weight: 500;
}

[data-bs-theme="dark"] .nav-link.active {
    color: #40B3FF !important;
}

@media (max-width: 768px) {
    .teacher-content {
        margin-top: 60px;
    }
}

.card {
    background-color: var(--card-bg);
    border-color: var(--border-color);
}

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

.theme-toggle {
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background-color: var(--border-color);
}

/* Bottom Navigation Styles */
.bottom-nav {
    background-color: var(--bottom-nav-bg) !important;
    border-top-color: var(--bottom-nav-border) !important;
    padding-bottom: 0.1rem;
    padding-top: 0.1rem;
}

.nav-link {
    color: var(--bottom-nav-text) !important;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: var(--bottom-nav-active) !important;
    background-color: rgba(13, 110, 253, 0.1);
}

.nav-link.active {
    color: var(--bottom-nav-active) !important;
    background-color: rgba(13, 110, 253, 0.1);
}

.nav-link .small {
    margin-top: 0.25rem;
    font-size: 0.75rem;
    line-height: 1;
}

.nav-link i {
    font-size: 1.5rem;
    display: block;
    margin-bottom: 0.25rem;
    color: var(--bottom-nav-text);
    transition: all 0.3s ease;
}

.nav-link.active {
    color: var(--bottom-nav-active) !important;
    background-color: rgba(13, 110, 253, 0.1);
    border-radius: 8px;
    padding: 8px 12px;
}

.nav-link.active i {
    color: var(--bottom-nav-active) !important;
    transform: scale(1.1);
}

.nav-link:hover {
    color: var(--bottom-nav-active) !important;
    background-color: rgba(13, 110, 253, 0.05);
}

.nav-link:hover i {
    color: var(--bottom-nav-active) !important;
    transform: scale(1.05);
}

/* Dark mode için Select2 stilleri */
[data-bs-theme="dark"] .select2-container--bootstrap-5 .select2-selection {
    background-color: var(--card-bg);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-bs-theme="dark"] .select2-container--bootstrap-5 .select2-selection--single .select2-selection__rendered {
    color: var(--text-color);
}

[data-bs-theme="dark"] .select2-container--bootstrap-5 .select2-selection--multiple .select2-selection__rendered {
    color: var(--text-color);
}

[data-bs-theme="dark"] .select2-container--bootstrap-5 .select2-dropdown {
    background-color: var(--card-bg);
    border-color: var(--border-color);
}

/* Ortak badge stilleri */
[data-bs-theme="dark"] .badge.bg-light {
    background-color: #343a40 !important;
    color: #fff !important;
}

[data-bs-theme="dark"] .badge.bg-secondary {
    background-color: #6c757d !important;
    color: #fff !important;
}

[data-bs-theme="dark"] .badge.bg-primary {
    background-color: #0d6efd !important;
    color: #fff !important;
}

[data-bs-theme="dark"] .badge.bg-warning {
    background-color: #ffc107 !important;
    color: #212529 !important;
}

[data-bs-theme="dark"] .badge.bg-info {
    background-color: #0dcaf0 !important;
    color: #212529 !important;
}

[data-bs-theme="dark"] .badge.bg-success {
    background-color: #198754 !important;
    color: #fff !important;
}

[data-bs-theme="dark"] .badge.bg-danger {
    background-color: #dc3545 !important;
    color: #fff !important;
}

[data-bs-theme="dark"] .badge .bi {
    color: #fff !important;
}

[data-bs-theme="dark"] .badge.bg-light .bi {
    color: #212529 !important;
}

/* SweetAlert2 Dark Mode */
.swal2-dark {
    background-color: var(--bs-body-bg) !important;
    color: var(--bs-body-color) !important;
}

.swal2-dark .swal2-title {
    color: var(--bs-body-color) !important;
}

.swal2-dark .swal2-content {
    color: var(--bs-body-color) !important;
}

.swal2-dark .swal2-html-container {
    color: var(--bs-body-color) !important;
}