/**
 * Hi5 Eğitim Paneli - Ana Stil Dosyası
 */

/* Modern Modal Sistemi */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    padding: 20px;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-container {
    background: var(--white);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: all 0.3s ease;
    position: relative;
}

.modal-overlay.active .modal-container {
    transform: scale(1) translateY(0);
}

.modal-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    color: var(--text-light);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--bg-color);
    color: var(--text-color);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

.modal-btn {
    padding: 10px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 100px;
}

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

.modal-btn-primary:hover {
    background: #e6390f;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 74, 17, 0.3);
}

.modal-btn-secondary {
    background: var(--bg-color);
    color: var(--text-color);
}

.modal-btn-secondary:hover {
    background: var(--border-color);
}

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

.modal-btn-danger:hover {
    background: #c82333;
}

.modal-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 32px;
}

.modal-icon.success {
    background: rgba(40, 167, 69, 0.1);
    color: var(--success-color);
}

.modal-icon.warning {
    background: rgba(255, 193, 7, 0.1);
    color: var(--warning-color);
}

.modal-icon.error {
    background: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
}

.modal-icon.info {
    background: rgba(255, 74, 17, 0.1);
    color: var(--primary-color);
}

.modal-message {
    text-align: center;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    margin-bottom: 24px;
}

.modal-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 20px;
}

.modal-option {
    padding: 16px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    font-weight: 500;
    background: var(--white);
}

.modal-option:hover {
    border-color: var(--primary-color);
    background: rgba(255, 74, 17, 0.05);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.modal-option.selected {
    border-color: var(--primary-color);
    background: rgba(255, 74, 17, 0.1);
}

@media (max-width: 768px) {
    .modal-container {
        max-width: 100%;
        margin: 10px;
        border-radius: 12px;
    }
    
    .modal-header,
    .modal-body,
    .modal-footer {
        padding: 20px;
    }
}

:root {
    --primary-color: #ff4a11;
    --secondary-color: #000b45;
    --text-color: #333;
    --text-light: #666;
    --bg-color: #f5f5f5;
    --white: #ffffff;
    --border-color: #e0e0e0;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 5px 20px rgba(0, 0, 0, 0.15);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

/* Login Sayfası */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    padding: 20px;
}

.login-box {
    background: var(--white);
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 450px;
    padding: 40px;
    animation: fadeInUp 0.5s ease;
}

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

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    color: var(--primary-color);
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 10px;
}

.login-header p {
    color: var(--text-light);
    font-size: 14px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-color);
    font-weight: 500;
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
    background-color: var(--white);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 74, 17, 0.1);
}

/* reCAPTCHA Stilleri */
.g-recaptcha {
    margin: 15px 0;
    display: flex;
    justify-content: center;
}

.g-recaptcha > div {
    margin: 0 auto;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    width: 100%;
}

.btn-primary:hover {
    background-color: #e63900;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

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

.btn-secondary:hover {
    background-color: #00082e;
}

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

.btn-danger:hover {
    background-color: #c82333;
}

.alert {
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

/* Header */
.header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

/* Mobile Header Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 30px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.mobile-menu-btn span {
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile User Menu */
.mobile-user-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.mobile-user-menu.active {
    display: block;
    max-height: 500px;
}

/* Desktop User Menu (Sağdan açılır) */
.desktop-user-menu {
    left: auto !important;
    right: 20px;
    width: 280px;
    border-radius: 12px;
    top: calc(100% + 10px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    overflow: hidden;
}

.desktop-user-menu.active {
    max-height: 400px;
    animation: slideInRight 0.3s ease;
}

.desktop-user-menu .mobile-user-info {
    border-radius: 12px 12px 0 0;
}

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

.desktop-menu-btn {
    display: none;
}

.mobile-user-info {
    padding: 20px;
    border-bottom: 2px solid var(--border-color);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
}

.user-name-mobile {
    font-size: 18px;
    font-weight: 600;
    color: var(--white);
}

.mobile-menu-items {
    display: flex;
    flex-direction: column;
}

.mobile-menu-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    color: var(--text-color);
    text-decoration: none;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.3s ease;
    font-size: 16px;
}

.mobile-menu-item:hover {
    background-color: var(--bg-color);
}

.mobile-menu-item span {
    font-size: 20px;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo img {
    max-height: 35px;
    height: auto;
    width: auto;
    max-width: 150px;
    object-fit: contain;
}

.header-date-time {
    font-size: 14px;
    color: var(--text-light);
    font-family: monospace;
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-date-time .date {
    font-weight: 600;
    color: var(--text-color);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-name {
    font-weight: 500;
    color: var(--text-color);
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 30px 20px;
}

/* Card */
.card {
    background-color: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 25px;
    margin-bottom: 25px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.card-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-color);
}

/* Table */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.table th,
.table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    background-color: var(--bg-color);
    font-weight: 600;
    color: var(--text-color);
}

.table tr:hover {
    background-color: #fafafa;
}

/* Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 18px;
    margin-top: 20px;
}

/* Kurslarım: Her zaman satırda 2 kurs */
.courses-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-top: 16px;
}

.courses-grid .course-card {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.courses-grid .course-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.courses-grid .course-card-header {
    padding: 10px 12px;
}

.courses-grid .course-card-title {
    font-size: 14px;
    font-weight: 600;
    line-height: 1.35;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.courses-grid .course-card-body {
    padding: 10px 12px 12px;
}

.courses-grid .course-card-desc {
    margin-bottom: 10px;
    font-size: 13px;
}

.courses-grid .course-card-meta {
    margin-bottom: 8px;
}

.courses-grid .course-card-lessons {
    font-size: 12px;
}

.courses-grid .course-card-progress {
    font-size: 12px;
}

.courses-grid .progress-bar {
    height: 6px;
    border-radius: 3px;
    margin-top: 6px;
}

.courses-grid .course-card-image {
    height: 100px;
    flex-shrink: 0;
}

.course-card {
    background: var(--white);
    border-radius: 10px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.course-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.course-card-image {
    width: 100%;
    height: 140px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    position: relative;
}

.course-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.course-card:hover .course-card-image img {
    transform: scale(1.05);
}

.course-card-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 12px 15px;
    color: var(--white);
}

.course-card-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 5px;
    line-height: 1.3;
}

.course-card-body {
    padding: 12px 15px;
}

.course-card-desc {
    color: var(--text-light);
    margin-bottom: 12px;
    font-size: 14px;
    line-height: 1.4;
}

.course-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    gap: 8px;
}

.course-card-lessons {
    font-size: 14px;
    color: var(--text-light);
}

.course-card-progress {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-color);
}

.course-card-footer {
    padding: 15px 20px;
    background-color: var(--bg-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 10px;
}

.progress-fill {
    height: 100%;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

/* Duyurular – tek, modern section (Kurslarım sayfası) */
.announcements-section {
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    margin-bottom: 25px;
}

#app-content .announcements-section {
    margin-bottom: 24px;
}

.announcements-section__header {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(180deg, rgba(255, 74, 17, 0.04) 0%, transparent 100%);
}

.announcements-section__title {
    margin: 0;
    font-size: 17px;
    font-weight: 700;
    color: var(--text-color);
}

.announcements-list {
    display: flex;
    flex-direction: column;
}

.announcement-item {
    padding: 14px 18px 14px 20px;
    border-bottom: 1px solid var(--border-color);
    margin: 0;
    border-left: 3px solid var(--primary-color);
}

.announcement-item:last-child {
    border-bottom: none;
}

.announcement-item__title {
    margin: 0 0 8px 0;
    font-size: 15px;
    font-weight: 600;
    color: var(--primary-color);
    line-height: 1.35;
    display: flex;
    align-items: flex-start;
    gap: 6px;
}

.announcement-item__icon {
    flex-shrink: 0;
}

.announcement-item__content {
    font-size: 14px;
    color: var(--text-color);
    line-height: 1.5;
    max-height: 160px;
    overflow-y: auto;
}

.announcement-item__content.rich-text-content {
    padding: 0;
}

.announcements-empty {
    margin: 0;
    padding: 24px 18px;
    text-align: center;
    color: var(--text-light);
    font-size: 14px;
}

/* Sidebar */
.sidebar {
    background-color: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 20px;
    margin-bottom: 25px;
}

.sidebar-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-color);
}

.lesson-list {
    list-style: none;
}

.lesson-item {
    padding: 12px 12px 12px 20px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 6px;
    margin-bottom: 5px;
    font-size: 14px;
}

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

.lesson-item.active {
    background-color: rgba(255, 74, 17, 0.1);
    border-left: 4px solid var(--primary-color);
}

.lesson-item.completed {
    color: var(--success-color);
}

.lesson-item.completed::before {
    content: "✓ ";
    font-weight: bold;
}

.lesson-item.scheduled {
    border-left: 4px solid var(--warning-color);
}

/* Lesson Group Header */
.lesson-group-header {
    margin: 20px 0 10px 0;
    padding: 0;
    list-style: none;
    position: relative;
}

.lesson-group-header > div {
    position: relative;
    display: block;
    padding: 8px 0;
    font-weight: 500;
    color: #666;
    font-size: 13px;
    letter-spacing: 0;
    text-transform: none;
    border-bottom: 1px solid #e0e0e0;
    margin-bottom: 0;
    padding-left: 0;
}

/* Video Container */
.video-container {
    background-color: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 20px;
    margin-bottom: 25px;
}

.video-item-wrapper {
    margin-bottom: 30px;
}

.video-item-wrapper:last-child {
    margin-bottom: 0;
}

.video-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    margin-bottom: 20px;
}

.video-wrapper iframe,
.video-wrapper .voomly-embed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 10px;
}

/* Navigation Buttons */
.nav-buttons {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    margin-top: 20px;
}

/* ============================================
   DERS SAYFASI – MİNİMAL, MODERN
   ============================================ */

.course-view-container {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 20px;
    margin-top: 0;
}

.course-view-container .card {
    padding: 18px 20px;
    margin-bottom: 18px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
}

.course-view-container .card-header {
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom-width: 1px;
}

.course-view-container .card-title {
    font-size: 17px;
    font-weight: 600;
}

.course-view-container .video-container {
    padding: 16px 18px;
    margin-bottom: 16px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
}

.course-view-container .video-item-wrapper {
    margin-bottom: 18px;
}

.course-view-container .video-item-wrapper:last-child {
    margin-bottom: 0;
}

.course-view-container .video-item-wrapper h3 {
    font-size: 14px !important;
    font-weight: 600;
    margin-bottom: 10px !important;
    color: var(--text-color);
}

.course-view-container .video-wrapper {
    margin-bottom: 14px;
    border-radius: 8px;
}

.course-view-container .video-wrapper:last-of-type {
    margin-bottom: 0;
}

.course-view-container .lesson-content-readonly,
.course-view-container .rich-text-editor.lesson-content-readonly {
    margin-top: 16px !important;
    margin-bottom: 18px !important;
    font-size: 15px;
    line-height: 1.55;
    padding: 0 !important;
    min-height: 0;
    border: none;
}

.course-view-container .nav-buttons {
    margin-top: 14px;
    gap: 12px;
}

.course-view-container .nav-buttons .btn {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
}

.course-view-container .nav-buttons .btn-primary {
    width: auto;
}

/* Sidebar – ders listesi */
.lesson-sidebar-desktop.sidebar {
    padding: 16px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
}

.lesson-sidebar-desktop .sidebar-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
}

.lesson-sidebar-desktop .lesson-item {
    padding: 10px 12px 10px 14px;
    font-size: 13px;
    margin-bottom: 4px;
    border-radius: 6px;
}

.lesson-sidebar-desktop .lesson-item.active {
    border-left-width: 3px;
}

.lesson-sidebar-desktop .lesson-group-header {
    margin: 14px 0 6px 0;
}

.lesson-sidebar-desktop .lesson-group-header:first-child {
    margin-top: 0;
}

.lesson-sidebar-desktop .lesson-group-header > div {
    font-size: 12px;
    padding: 6px 0;
    color: var(--text-light);
    border-bottom-color: var(--border-color);
}

/* PDF / Image / Attachment wrappers – kompakt */
.course-view-container .pdf-viewer-wrapper,
.course-view-container .image-wrapper {
    margin-bottom: 18px;
}

.course-view-container .pdf-viewer-wrapper h3,
.course-view-container .image-wrapper h3 {
    font-size: 14px !important;
    font-weight: 600;
    margin-bottom: 10px !important;
}

.course-view-container .attachment-wrapper {
    margin-bottom: 14px;
    padding: 12px 14px;
    border-radius: 8px;
}

.course-view-container .attachment-wrapper [style*="font-size: 16px"] {
    font-size: 14px !important;
}

.course-view-container .alert {
    margin: 14px 0;
    padding: 12px 16px;
}

.course-view-container .alert strong {
    font-size: 14px;
}

/* Quiz container */
.course-view-container #quiz-container {
    padding: 16px 18px !important;
}

/* Mobile menu toggle – kompakt */
.mobile-menu-toggle {
    padding: 8px 14px;
    font-size: 14px;
    border-radius: 8px;
}

/* Responsive */
@media (max-width: 768px) {
    .login-box {
        padding: 30px 20px;
    }
    
    /* Desktop header'ı gizle */
    .header-desktop {
        display: none !important;
    }
    
    /* Mobile header'ı göster */
    .header-mobile {
        display: block !important;
    }
    
    .mobile-menu-btn {
        display: flex !important;
    }
    
    .header {
        padding: 10px 0;
    }
    
    .header-content {
        justify-content: space-between;
    }
    
    .header-date-time {
        order: 2;
        width: 100%;
        justify-content: center;
    }
    
    .header-actions {
        order: 3;
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .grid {
        grid-template-columns: 1fr;
    }
    
    /* Kurslarım – mobil: 2 sütun kompakt */
    .courses-grid {
        gap: 10px;
        margin-top: 12px;
    }
    
    .courses-grid .course-card-image {
        height: 88px;
    }
    
    #app-content .card {
        padding: 16px 14px;
        margin-bottom: 16px;
    }
    
    #app-content .card-header {
        margin-bottom: 12px;
        padding-bottom: 10px;
    }
    
    #app-content .card-title {
        font-size: 18px;
    }
    
    .courses-grid .course-card-header {
        padding: 8px 10px;
    }
    
    .courses-grid .course-card-title {
        font-size: 13px;
    }
    
    .courses-grid .course-card-body {
        padding: 8px 10px 10px;
    }
    
    .courses-grid .course-card-desc {
        display: none;
    }
    
    .courses-grid .course-card-meta {
        margin-bottom: 6px;
    }
    
    .courses-grid .course-card-lessons {
        font-size: 11px;
    }
    
    .courses-grid .course-card-progress {
        font-size: 11px;
    }
    
    .courses-grid .progress-bar {
        height: 4px;
        border-radius: 2px;
        margin-top: 4px;
    }
    
    /* Duyurular mobil – tek blok, kompakt */
    .announcements-section {
        margin-bottom: 16px;
        border-radius: 10px;
    }
    
    .announcements-section__header {
        padding: 12px 14px;
    }
    
    .announcements-section__title {
        font-size: 15px;
    }
    
    .announcement-item {
        padding: 12px 14px;
    }
    
    .announcement-item__title {
        font-size: 14px;
        margin-bottom: 6px;
    }
    
    .announcement-item__content {
        font-size: 13px;
        max-height: 100px;
    }
    
    .announcements-empty {
        padding: 20px 14px;
        font-size: 13px;
    }
    
    .course-card-header {
        padding: 12px 15px;
    }
    
    .course-card-title {
        font-size: 16px;
    }
    
    .course-card-body {
        padding: 12px 15px;
    }
    
    .nav-buttons {
        flex-direction: column;
    }
    
    .nav-buttons .btn {
        width: 100%;
    }
    
    /* Ders sayfası mobil – minimal */
    .course-view-container {
        grid-template-columns: 1fr !important;
        gap: 14px;
    }
    
    .course-view-container .card {
        padding: 14px 16px;
        margin-bottom: 14px;
    }
    
    .course-view-container .card-header {
        margin-bottom: 10px;
        padding-bottom: 8px;
    }
    
    .course-view-container .card-title {
        font-size: 15px;
    }
    
    .lesson-sidebar-desktop {
        display: none !important;
    }
    
    .mobile-menu-toggle {
        display: block !important;
        padding: 8px 12px;
        font-size: 13px;
    }
    
    .course-view-container .video-container {
        padding: 12px 14px;
        margin-bottom: 14px;
    }
    
    .video-wrapper {
        padding-bottom: 56.25%;
    }
    
    .course-view-container .video-item-wrapper {
        margin-bottom: 14px;
    }
    
    .course-view-container .video-item-wrapper h3 {
        font-size: 13px !important;
        margin-bottom: 8px !important;
    }
    
    .course-view-container .video-wrapper {
        margin-bottom: 10px;
    }
    
    .course-view-container .lesson-content-readonly,
    .course-view-container .rich-text-editor.lesson-content-readonly {
        margin-top: 12px !important;
        margin-bottom: 14px !important;
        font-size: 14px;
    }
    
    .course-view-container .nav-buttons {
        margin-top: 12px;
        gap: 10px;
    }
    
    .course-view-container .nav-buttons .btn {
        padding: 10px 16px;
        font-size: 13px;
        width: 100%;
    }
    
    .course-view-container .pdf-viewer-wrapper,
    .course-view-container .image-wrapper {
        margin-bottom: 14px;
    }
    
    .course-view-container .pdf-viewer-wrapper h3,
    .course-view-container .image-wrapper h3 {
        font-size: 13px !important;
        margin-bottom: 8px !important;
    }
    
    .course-view-container .attachment-wrapper {
        padding: 10px 12px;
        margin-bottom: 12px;
    }
    
    .course-view-container #quiz-container {
        padding: 12px 14px !important;
    }
    
    .course-view-container .pdf-viewer-content {
        height: 360px !important;
        padding: 12px !important;
    }
    
    /* Hamburger içi ders listesi */
    .lesson-group-header {
        margin: 14px 0 6px 0;
    }
    
    .lesson-group-header > div {
        font-size: 11px !important;
        padding: 6px 0 !important;
    }
    
    .lesson-item {
        padding: 10px 12px 10px 14px !important;
        font-size: 13px !important;
    }
    
    /* Mobilde rich text içerikler */
    .course-view-container .rich-text-content,
    .course-view-container .rich-text-editor {
        padding: 0 !important;
        font-size: 14px !important;
        overflow-x: hidden !important;
    }
    
    .rich-text-content table,
    .rich-text-editor table {
        font-size: 12px !important;
        display: block !important;
        width: 100% !important;
        overflow-x: auto !important;
    }
    
    .rich-text-content table td,
    .rich-text-content table th,
    .rich-text-editor table td,
    .rich-text-editor table th {
        padding: 5px !important;
        word-wrap: break-word !important;
        white-space: normal !important;
        max-width: none !important;
    }
    
    /* Ders içeriği salt okunur - öğrenci düzenleyemez */
    .lesson-content-readonly,
    .lesson-content-readonly * {
        -webkit-user-select: text !important;
        -moz-user-select: text !important;
        -ms-user-select: text !important;
        user-select: text !important;
    }
    
    .lesson-content-readonly[contenteditable],
    .lesson-content-readonly [contenteditable="true"],
    .lesson-content-readonly [contenteditable=""] {
        contenteditable: false !important;
        -webkit-user-modify: read-only !important;
        -moz-user-modify: read-only !important;
        user-modify: read-only !important;
    }
    
    .lesson-content-readonly table,
    .lesson-content-readonly table td,
    .lesson-content-readonly table th {
        contenteditable: false !important;
        -webkit-user-modify: read-only !important;
        -moz-user-modify: read-only !important;
        user-modify: read-only !important;
    }
    
    .card-body {
        padding: 15px !important;
        overflow-x: hidden !important;
    }
    
    .card-body * {
        max-width: 100% !important;
        word-wrap: break-word !important;
    }
    
    /* Voomly embed responsive */
    .video-wrapper .voomly-embed {
        max-width: 100% !important;
        width: 100% !important;
    }
    
    /* Mobilde iframe ve video responsive */
    .rich-text-content iframe,
    .rich-text-editor iframe {
        max-width: 100% !important;
        width: 100% !important;
    }
    
    .rich-text-content video,
    .rich-text-editor video {
        max-width: 100% !important;
        height: auto !important;
    }
    
    /* Mobilde pre ve code blokları */
    .rich-text-content pre,
    .rich-text-editor pre {
        overflow-x: auto !important;
        word-wrap: break-word !important;
        white-space: pre-wrap !important;
    }
}

@media (min-width: 769px) {
    /* Desktop'ta mobile header'ı gizle */
    .header-mobile {
        display: none !important;
    }
    
    /* Desktop'ta desktop header'ı göster */
    .header-desktop {
        display: block !important;
    }
    
    /* Desktop'ta hamburger butonu göster */
    .desktop-menu-btn {
        display: flex !important;
    }
    
    .mobile-menu-toggle {
        display: none !important;
    }
    
    .lesson-sidebar-desktop {
        display: block !important;
    }
    
    .hamburger-menu {
        display: none !important;
    }
    
    .hamburger-menu.active {
        display: none !important;
    }
}

/* Hamburger Menü */
.hamburger-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
}

.hamburger-menu.active {
    display: block;
}

@media (min-width: 769px) {
    /* Desktop'ta hamburger menüyü gizle */
    .hamburger-menu {
        display: none !important;
    }
    
    .hamburger-menu.active {
        display: none !important;
    }
    
    /* Desktop'ta mobile header'ı gizle */
    .header-mobile {
        display: none !important;
    }
    
    /* Desktop'ta desktop header'ı göster */
    .header-desktop {
        display: block !important;
    }
    
    /* Desktop'ta hamburger butonu göster */
    .desktop-menu-btn {
        display: flex !important;
    }
    
    .mobile-menu-toggle {
        display: none !important;
    }
    
    .lesson-sidebar-desktop {
        display: block !important;
    }
}

.hamburger-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 80%;
    max-width: 350px;
    height: 100%;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
    padding: 20px;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

.hamburger-menu.active .hamburger-content {
    transform: translateX(0);
}

.hamburger-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.hamburger-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-color);
}

.mobile-menu-toggle {
    display: none;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 10px 15px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 18px;
    margin-bottom: 15px;
    width: 100%;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block !important;
    }
}

/* Loading Spinner */
.spinner {
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

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

/* Modern Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.loading-content {
    background: var(--white);
    border-radius: 20px;
    padding: 40px 50px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    text-align: center;
    max-width: 300px;
    width: 90%;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.loading-overlay.active .loading-content {
    transform: scale(1);
}

.loading-spinner {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    border: 4px solid rgba(255, 74, 17, 0.1);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-text {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-color);
    margin: 0;
}

.loading-subtext {
    font-size: 13px;
    color: var(--text-light);
    margin-top: 8px;
    opacity: 0.8;
}

/* Responsive Loading */
@media (max-width: 768px) {
    .loading-content {
        padding: 30px 35px;
        max-width: 250px;
    }
    
    .loading-spinner {
        width: 50px;
        height: 50px;
        border-width: 3px;
    }
    
    .loading-text {
        font-size: 14px;
    }
    
    .loading-subtext {
        font-size: 12px;
    }
}

/* Badge */
.badge {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

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

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

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

/* Form Checkbox/Radio */
.form-check {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.form-check input {
    margin-right: 8px;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Rich Text Editor */
.rich-text-editor {
    min-height: 300px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
}

/* Rich Text Content - Desktop için normal görünüm */
.rich-text-content,
.rich-text-editor {
    max-width: 100%;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

/* Görseller - Desktop'ta normal, mobilde responsive */
.rich-text-content img,
.rich-text-editor img {
    max-width: 100%;
    height: auto;
}

/* Tablolar - Desktop'ta normal tablo görünümü */
.rich-text-content table,
.rich-text-editor table {
    width: 100%;
    max-width: 100%;
    border-collapse: collapse;
}

.rich-text-content table td,
.rich-text-content table th,
.rich-text-editor table td,
.rich-text-editor table th {
    word-wrap: break-word;
    padding: 8px;
}

/* iframe'ler - Desktop'ta normal */
.rich-text-content iframe,
.rich-text-editor iframe {
    max-width: 100%;
}

/* Video embed'ler */
.rich-text-content video,
.rich-text-editor video {
    max-width: 100%;
    height: auto;
}

/* Pre ve code blokları */
.rich-text-content pre,
.rich-text-editor pre {
    max-width: 100%;
    overflow-x: auto;
    word-wrap: break-word;
}

.rich-text-content code,
.rich-text-editor code {
    word-wrap: break-word;
}

/* ============================================
   ADMIN SIDEBAR MENÜ
   ============================================ */

/* Admin Sidebar */
.admin-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    width: 260px;
    background: linear-gradient(180deg, var(--secondary-color) 0%, #001a5c 100%);
    color: var(--white);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: width 0.3s ease, transform 0.3s ease;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.admin-sidebar.collapsed {
    width: 70px;
}

.admin-sidebar.collapsed .sidebar-text {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

.admin-sidebar.collapsed .sidebar-logo img {
    width: 40px;
    height: 40px;
    max-width: 40px;
}

/* Sidebar Header */
.sidebar-header {
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    min-height: 70px;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
}

.sidebar-logo img {
    height: 50px;
    width: auto;
    max-width: 180px;
    object-fit: contain;
    transition: all 0.3s ease;
}

.sidebar-toggle {
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    width: 24px;
    height: 24px;
    padding: 0;
    transition: transform 0.3s ease;
    position: relative;
}

.sidebar-toggle span {
    width: 100%;
    height: 2px;
    background-color: var(--white);
    border-radius: 2px;
    transition: all 0.3s ease;
    position: absolute;
    left: 0;
}

.sidebar-toggle span:nth-child(1) {
    top: 6px;
}

.sidebar-toggle span:nth-child(2) {
    top: 11px;
}

.sidebar-toggle span:nth-child(3) {
    bottom: 6px;
}

/* Sidebar açıkken (not collapsed) X iconuna dönüş */
.admin-sidebar:not(.collapsed) .sidebar-toggle span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
    top: 11px;
}

.admin-sidebar:not(.collapsed) .sidebar-toggle span:nth-child(2) {
    opacity: 0;
}

.admin-sidebar:not(.collapsed) .sidebar-toggle span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
    bottom: 11px;
}

/* Sidebar kapalıyken (collapsed) hamburger */
.admin-sidebar.collapsed .sidebar-toggle span:nth-child(1),
.admin-sidebar.collapsed .sidebar-toggle span:nth-child(2),
.admin-sidebar.collapsed .sidebar-toggle span:nth-child(3) {
    transform: none;
    opacity: 1;
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    padding: 20px 0;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
    white-space: nowrap;
}

.sidebar-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border-left-color: var(--primary-color);
}

.sidebar-item.active {
    background: rgba(255, 74, 17, 0.2);
    color: var(--white);
    border-left-color: var(--primary-color);
}

.sidebar-icon {
    font-size: 20px;
    margin-right: 15px;
    min-width: 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.sidebar-text {
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.admin-sidebar.collapsed .sidebar-item {
    justify-content: center;
    padding: 12px;
}

.admin-sidebar.collapsed .sidebar-icon {
    margin-right: 0;
}

/* Sidebar Footer */
.sidebar-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 15px 20px;
}

.sidebar-user {
    display: flex;
    align-items: center;
    padding: 10px 0;
    margin-bottom: 10px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    white-space: nowrap;
}

.admin-sidebar.collapsed .sidebar-user {
    justify-content: center;
}

.admin-sidebar.collapsed .sidebar-user .sidebar-text {
    display: none;
}

/* Admin Header (Top) */
.admin-header {
    position: fixed;
    top: 0;
    left: 260px;
    right: 0;
    height: 70px;
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 999;
    transition: left 0.3s ease;
}

.admin-sidebar.collapsed ~ .admin-header {
    left: 70px;
}

.admin-header-content {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
}

.admin-menu-toggle {
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 30px;
    padding: 0;
    position: relative;
}

.admin-menu-toggle span {
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 3px;
    transition: all 0.3s ease;
    position: absolute;
    left: 0;
}

.admin-menu-toggle span:nth-child(1) {
    top: 6px;
}

.admin-menu-toggle span:nth-child(2) {
    top: 13.5px;
}

.admin-menu-toggle span:nth-child(3) {
    bottom: 6px;
}

/* Menü açıkken X iconuna dönüş */
.admin-sidebar:not(.collapsed) .admin-menu-toggle span:nth-child(1),
.admin-sidebar.mobile-open .admin-menu-toggle span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
    top: 13.5px;
}

.admin-sidebar:not(.collapsed) .admin-menu-toggle span:nth-child(2),
.admin-sidebar.mobile-open .admin-menu-toggle span:nth-child(2) {
    opacity: 0;
}

.admin-sidebar:not(.collapsed) .admin-menu-toggle span:nth-child(3),
.admin-sidebar.mobile-open .admin-menu-toggle span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
    bottom: 13.5px;
}

.admin-header-date-time {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    font-size: 14px;
    color: var(--text-light);
}

.admin-header-date-time .date {
    font-weight: 600;
    color: var(--text-color);
}

.admin-header-date-time .time {
    font-size: 12px;
    color: var(--text-light);
}

/* Admin Main Content */
.admin-main-content {
    margin-left: 260px;
    margin-top: 70px;
    padding: 30px;
    transition: margin-left 0.3s ease;
    min-height: calc(100vh - 70px);
}

.admin-sidebar.collapsed ~ .admin-main-content {
    margin-left: 70px;
}

.admin-container {
    max-width: 1400px;
    margin: 0 auto;
}

/* Responsive */
@media (max-width: 768px) {
    .admin-sidebar {
        transform: translateX(-100%);
        width: 260px;
    }
    
    .admin-sidebar.mobile-open {
        transform: translateX(0);
    }
    
    .admin-header {
        left: 0;
    }
    
    .admin-sidebar.collapsed ~ .admin-header {
        left: 0;
    }
    
    .admin-main-content {
        margin-left: 0;
    }
    
    .admin-sidebar.collapsed ~ .admin-main-content {
        margin-left: 0;
    }
}

/* ============================================
   ADMIN BUTON STİLLERİ
   ============================================ */

/* Küçük butonlar (tablo içi butonlar için) */
.btn-sm {
    padding: 6px 16px !important;
    font-size: 14px !important;
    min-width: auto !important;
    width: auto !important;
}

/* Admin tablo aksiyon butonları */
.admin-action-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}

.admin-action-buttons .btn {
    min-width: 90px;
    padding: 6px 16px;
    font-size: 14px;
    white-space: nowrap;
}

/* Admin form aksiyon butonları (Kaydet, İptal, Geri) - modern düzen */
.admin-form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
    align-items: center;
}

.admin-form-actions .btn {
    min-width: 120px;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 500;
    width: auto !important;
    border-radius: 8px;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.admin-form-actions .btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.admin-form-actions .btn:active {
    transform: translateY(0);
}

/* Card header içindeki butonlar */
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header .btn {
    width: auto !important;
    margin-left: auto;
}

/* Buton genişlik düzeltmeleri */
.btn {
    min-width: 120px;
}

/* Tablo içindeki butonlar için özel stil */
.table .admin-action-buttons .btn {
    min-width: 80px;
    padding: 5px 12px;
    font-size: 13px;
}

/* Responsive kurs kartları - Tablet ve küçük ekranlar */
@media (max-width: 1200px) {
    .grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
        gap: 15px;
    }
}

@media (max-width: 768px) {
    .grid {
        grid-template-columns: 1fr;
    }
    
    .courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ============================================
   DİL SEÇİCİ (LANGUAGE SELECTOR)
   ============================================ */

.language-selector {
    position: relative;
    display: inline-block;
}

.language-selector-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-color);
    min-width: 100px;
    justify-content: center;
}

.language-selector-btn:hover {
    border-color: var(--primary-color);
    background: var(--bg-color);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.language-selector-btn.active {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: var(--white);
}

.language-selector-btn .flag-icon {
    font-size: 18px;
    line-height: 1;
}

.language-selector-btn .arrow-icon {
    font-size: 12px;
    transition: transform 0.3s ease;
    margin-left: auto;
}

.language-selector-btn.active .arrow-icon {
    transform: rotate(180deg);
}

.language-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    min-width: 160px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1002;
    overflow: hidden;
}

.language-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-color);
    font-size: 14px;
    font-weight: 500;
    border-bottom: 1px solid var(--border-color);
}

.language-option:last-child {
    border-bottom: none;
}

.language-option:hover {
    background: var(--bg-color);
    padding-left: 20px;
}

.language-option.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
}

.language-option .flag-icon {
    font-size: 20px;
    line-height: 1;
    flex-shrink: 0;
}

.language-option .lang-name {
    flex: 1;
}

.language-option .check-icon {
    font-size: 16px;
    margin-left: auto;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.language-option.active .check-icon {
    opacity: 1;
}

/* Header içindeki dil seçici */
.header-content .language-selector {
    margin-left: auto;
    margin-right: 15px;
}

/* Mobile menü içindeki dil seçici */
.mobile-menu-items .language-selector {
    width: 100%;
    padding: 0;
}

.mobile-menu-items .language-selector-btn {
    width: 100%;
    border: none;
    border-radius: 0;
    border-bottom: 1px solid var(--border-color);
    justify-content: flex-start;
    padding: 15px 20px;
    background: transparent;
}

.mobile-menu-items .language-selector-btn:hover {
    background: var(--bg-color);
    transform: none;
    box-shadow: none;
}

.mobile-menu-items .language-dropdown {
    position: static;
    border: none;
    border-radius: 0;
    box-shadow: none;
    background: var(--bg-color);
    margin: 0;
    opacity: 1;
    visibility: visible;
    transform: none;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.mobile-menu-items .language-dropdown.active {
    max-height: 200px;
}

.mobile-menu-items .language-option {
    padding-left: 50px;
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
}

.mobile-menu-items .language-option:hover {
    padding-left: 55px;
    background: var(--bg-color);
}

/* Responsive */
@media (max-width: 768px) {
    .header-content .language-selector {
        margin-right: 10px;
    }
    
    .language-selector-btn {
        padding: 6px 12px;
        min-width: 80px;
        font-size: 13px;
    }
    
    .language-selector-btn .flag-icon {
        font-size: 16px;
    }
}

/* Desktop header için özel stil */
.header-desktop .header-content .language-selector {
    order: 2;
}

.header-desktop .header-content .logo {
    order: 1;
}

.header-desktop .header-content .desktop-menu-btn {
    order: 3;
}

/* Animasyon */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.language-dropdown.active .language-option {
    animation: fadeInDown 0.3s ease backwards;
}

.language-dropdown.active .language-option:nth-child(1) {
    animation-delay: 0.05s;
}

.language-dropdown.active .language-option:nth-child(2) {
    animation-delay: 0.1s;
}

/* DateTime Local Input Stilleri */
input[type="datetime-local"] {
    display: block !important;
    width: 100% !important;
    padding: 8px 12px !important;
    border: 1px solid #ccc !important;
    border-radius: 4px !important;
    font-size: 14px !important;
    min-height: 38px !important;
    box-sizing: border-box !important;
    background-color: #fff !important;
    color: #333 !important;
    cursor: pointer !important;
}

input[type="datetime-local"]:focus {
    outline: none !important;
    border-color: var(--primary-color, #ff4a11) !important;
    box-shadow: 0 0 0 3px rgba(255, 74, 17, 0.1) !important;
}

input[type="datetime-local"]::-webkit-calendar-picker-indicator {
    cursor: pointer !important;
    opacity: 1 !important;
    padding: 4px !important;
}

/* ============================================
   MOBİL UYGULAMA İÇİ GÖRÜNÜM (IN-APP)
   ============================================ */

/* Mobil uygulama içinde header'ı gizle */
.in-app .header,
.in-app .header-mobile,
.in-app .header-desktop {
    display: none !important;
    visibility: hidden !important;
    height: 0 !important;
    overflow: hidden !important;
}

/* Mobil uygulama içinde container'ı yukarı taşı */
.in-app .container {
    padding-top: 20px !important;
    margin-top: 0 !important;
}

/* Mobil + in-app: daha kompakt container, maksimum içerik alanı */
@media (max-width: 768px) {
    .in-app .container {
        padding: 16px 12px 24px !important;
    }
}