/* 
 * PyCampus - Lesson Page Styles
 * v1.0
 */

/* Genel Tasarım ve Renkler */
:root {
    --primary-color: #4361ee;
    --secondary-color: #3a0ca3;
    --success-color: #2a9d8f;
    --info-color: #4cc9f0;
    --warning-color: #f77f00;
    --danger-color: #e63946;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --border-radius: 12px;
    --box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

body {
    background-color: #f9fafb;
}

/* Lesson Navigation Bar */
.lesson-nav {
    box-shadow: var(--box-shadow);
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
    transition: var(--transition);
}

.lesson-nav .btn {
    transition: all 0.3s ease;
}

.lesson-nav .btn-outline-secondary {
    border-width: 2px;
    font-weight: 600;
}

.lesson-nav .btn-primary {
    border-width: 2px;
    font-weight: 600;
}

.lesson-nav .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

/* Content Cards */
.lesson-content .card, 
.sidebar .card {
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: none;
    box-shadow: var(--box-shadow);
}

/* Sidebar Card için ek düzenlemeler */
.sidebar-card {
    display: flex;
    flex-direction: column;
}

.sidebar-card .card-body {
    padding: 0;
    overflow: hidden;
    flex: 1;
}

.lesson-content .card:hover {
    transform: translateY(-3px);
}

/* Content Text */
.lesson-text {
    line-height: 1.8;
    font-size: 1.15rem;
    color: #333;
}

.lesson-text h1, .lesson-text h2, .lesson-text h3 {
    color: var(--secondary-color);
    margin-top: 2.2rem;
    margin-bottom: 1.2rem;
    font-weight: 700;
}

.lesson-text h1 {
    font-size: 2rem;
    border-bottom: 2px solid #eee;
    padding-bottom: 0.5rem;
}

.lesson-text h2 {
    font-size: 1.75rem;
}

.lesson-text h3 {
    font-size: 1.4rem;
}

.lesson-text p {
    margin-bottom: 1.2rem;
}

.lesson-text ul, .lesson-text ol {
    margin-bottom: 1.2rem;
    padding-left: 2.2rem;
}

.lesson-text li {
    margin-bottom: 0.7rem;
}

/* Blockquotes */
.lesson-text blockquote {
    border-left: 5px solid var(--primary-color);
    padding: 1.5rem;
    margin: 2rem 0;
    background-color: #f0f5ff;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    box-shadow: 0 3px 10px rgba(67, 97, 238, 0.1);
    position: relative;
}

.lesson-text blockquote::before {
    content: '"';
    font-family: Georgia, serif;
    font-size: 4rem;
    position: absolute;
    left: 10px;
    top: -10px;
    opacity: 0.1;
    color: var(--primary-color);
}

/* Image Styles */
.lesson-text img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin: 1.5rem auto;
    display: block;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.12);
    transition: var(--transition);
}

.lesson-text img:hover {
    transform: scale(1.02);
}

/* Code Blocks */
.code-container {
    background-color: #282c34;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin: 1.5rem 0;
    overflow-x: auto;
    position: relative;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.2);
}

.code-container::before {
    content: 'Python';
    position: absolute;
    top: 0;
    right: 15px;
    background: rgba(255,255,255,0.1);
    padding: 2px 10px;
    font-size: 0.7rem;
    border-radius: 0 0 5px 5px;
    color: #aaa;
}

.code-container pre {
    margin: 0;
    background: transparent;
    border: none;
    padding: 0;
}

.code-container code {
    font-family: 'Fira Code', 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.95rem;
    line-height: 1.6;
    color: #e6e6e6;
}

/* Enhanced Syntax Highlighting */
.language-python .keyword { color: #ff79c6; }
.language-python .string { color: #f1fa8c; }
.language-python .comment { color: #6272a4; }
.language-python .number { color: #bd93f9; }
.language-python .function { color: #50fa7b; }
.language-python .operator { color: #ff79c6; }
.language-python .builtin { color: #8be9fd; }

/* Attachments */
.attachment-item {
    transition: var(--transition);
    border-radius: var(--border-radius);
    border: 1px solid #eee;
}

.attachment-item:hover {
    background-color: #f8f9fa;
    transform: translateX(5px);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

/* Lesson List Scrollbar */
.lessons-list {
    scrollbar-width: thin;
    scrollbar-color: #cbd5e0 #f7fafc;
    max-height: 450px; /* To see more lessons */
    overflow-y: auto; /* Dikey scroll aktifleştirme */
    height: 100%;
}

.lessons-list::-webkit-scrollbar {
    width: 6px;
}

.lessons-list::-webkit-scrollbar-track {
    background: #f7fafc;
    border-radius: 10px;
}

.lessons-list::-webkit-scrollbar-thumb {
    background: #cbd5e0;
    border-radius: 10px;
    border: 2px solid #f7fafc;
}

.lessons-list::-webkit-scrollbar-thumb:hover {
    background: #a0aec0;
}

/* Lesson Items */
.lesson-item {
    transition: var(--transition);
    border-radius: 8px;
    margin: 5px 0;
    border-left: 3px solid transparent;
}

.lesson-item:hover:not(.bg-light) {
    background-color: #f0f7ff;
    border-left-color: var(--primary-color);
    transform: translateX(3px);
}

.lesson-item.bg-light {
    background-color: #e6f2ff !important;
    border-left-color: var(--primary-color);
}

.completion-icon {
    width: 22px;
    text-align: center;
    font-size: 1.1rem;
}

/* Navigation Buttons */
.lesson-navigation .btn {
    min-height: 60px;
    text-align: center;
    border-radius: 30px;
    transition: all 0.4s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    position: relative;
    border-width: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lesson-navigation .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent 0%, rgba(255,255,255,0.15) 100%);
    transition: var(--transition);
}

.lesson-navigation .btn:hover::before {
    transform: translateY(-100%);
}

.lesson-navigation .btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.lesson-navigation .btn-outline-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.lesson-navigation .btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.lesson-navigation .btn .fw-bold {
    font-size: 1.2rem;
    letter-spacing: 1px;
}

/* Tamamlandı Butonları */
#completionBtn {
    transition: var(--transition);
    border-radius: 30px;
    padding: 8px 16px;
}

#completionBtn:hover {
    transform: translateY(-2px);
}

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

/* İlerleme Çubuğu */
.progress {
    border-radius: 10px;
    height: 8px;
    background-color: #e9ecef;
    overflow: hidden;
}

.progress-bar {
    background-color: var(--success-color);
    transition: width 1s ease;
}

/* Duyuru / Bildirim Alanı */
.alert {
    border-radius: var(--border-radius);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
    border: none;
}

.alert-info {
    background-color: #e3f2fd;
    color: #0c5460;
}

/* Ders tamamlama checkbox stilleri */
.completion-checkbox .form-check {
    margin: 0;
    display: flex;
    align-items: center;
}

.completion-checkbox .form-check-input {
    width: 20px;
    height: 20px;
    margin: 0;
    cursor: pointer;
    border-width: 2px;
    transition: all 0.2s ease;
}

.completion-checkbox .form-check-input:checked {
    background-color: var(--success-color);
    border-color: var(--success-color);
    box-shadow: 0 0 0 2px rgba(42, 157, 143, 0.2);
    animation: checkmarkAnimation 0.4s ease-in-out;
}

.completion-checkbox .form-check-input:hover:not(:disabled) {
    border-color: var(--success-color);
    transform: scale(1.1);
}

@keyframes checkmarkAnimation {
    0% { transform: scale(0.8); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 0.9; }
    100% { transform: scale(1); opacity: 1; }
}

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

.lesson-header, 
.lesson-content .card,
.lesson-navigation,
.col-lg-4 .card {
    animation: fadeIn 0.5s ease-out forwards;
}

.lesson-content .card {
    animation-delay: 0.1s;
}

.lesson-navigation {
    animation-delay: 0.2s;
}

.col-lg-4 .card {
    animation-delay: 0.3s;
}

/* Responsive Ayarlamalar */
@media (max-width: 992px) {
    .lesson-nav .d-none.d-md-inline {
        display: none !important;
    }
    
    .progress-info {
        margin: 1rem 0;
    }
    
    .lesson-navigation .btn {
        min-height: 70px;
        font-size: 0.9rem;
    }
    
    .lesson-navigation .btn .text-truncate {
        max-width: 130px;
    }
    
    .lesson-text {
        font-size: 1.05rem;
    }
    
    /* Yan menü yapışkan konumu düzelt */
    .col-lg-4 .sticky-top {
        top: 165px;
        z-index: 900;
        max-height: calc(100vh - 180px); /* Ekran yüksekliğine göre maksimum yükseklik belirle */
        overflow: hidden; /* İçerik taşması durumunda gizle */
        display: flex;
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .lesson-nav .container .row > div {
        margin-bottom: 0.8rem;
    }
    
    .lesson-header .d-flex {
        flex-direction: column;
        align-items: flex-start !important;
    }
    
    .completion-status {
        margin-top: 1rem;
        width: 100%;
    }
    
    #completionBtn {
        width: 100%;
    }
    
    .lesson-navigation .btn {
        min-height: 60px;
    }
    
    .lessons-list {
        max-height: 300px;
        overflow-y: auto;
    }
    
    .card-header {
        padding: 0.75rem 1rem;
    }
    
    /* Video boyutu ayarlaması */
    .video-section {
        margin-left: -1rem;
        margin-right: -1rem;
        border-radius: 0;
    }
}

/* Koyu Mod Hazırlıkları (Gelecekte Eklenecek) */
@media (prefers-color-scheme: dark) {
    /* Burada gelecekte koyu mod için CSS eklenebilir */
}