/* Tasarım Sistemi ve Değişkenler */
:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --border-color: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #3b82f6;
    --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --card-bg: rgba(30, 41, 59, 0.7);
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
    --glass-blur: blur(12px);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.light-theme {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --border-color: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --accent-color: #2563eb;
    --accent-gradient: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --card-bg: rgba(255, 255, 255, 0.8);
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: var(--transition);
    overflow-x: hidden;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 2rem;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo i {
    font-size: 1.75rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo span span {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.theme-toggle {
    cursor: pointer;
    font-size: 1.25rem;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition);
    color: var(--text-secondary);
}

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

/* App Container */
.app-container {
    display: flex;
    min-height: calc(100vh - 73px);
    max-width: 1600px;
    margin: 0 auto;
}

/* Sidebar */
.sidebar {
    width: 320px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    flex-shrink: 0;
    height: calc(100vh - 73px);
    position: sticky;
    top: 73px;
    overflow-y: auto;
}

.search-box {
    display: flex;
    gap: 0.5rem;
}

.search-box input {
    flex: 1;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    outline: none;
    transition: var(--transition);
}

.search-box input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.search-box button {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    border: none;
    background: var(--accent-gradient);
    color: #fff;
    cursor: pointer;
    transition: var(--transition);
}

.search-box button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.filter-group h3 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    padding: 0.5rem 0.75rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

.tag:hover {
    border-color: var(--accent-color);
}

.tag.active {
    background: var(--accent-gradient);
    color: #fff;
    border-color: transparent;
}

select {
    width: 100%;
    padding: 0.75rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    outline: none;
    cursor: pointer;
}

.discovery-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.discovery-list li {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border: 1px solid transparent;
}

.discovery-list li:hover {
    background-color: var(--bg-primary);
    border-color: var(--border-color);
    transform: translateX(5px);
}

.discovery-list li i {
    color: var(--accent-color);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    overflow-y: auto;
}

.status-bar {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* Card Grid & Cards */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 1rem;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: 0 12px 20px rgba(59, 130, 246, 0.15);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.card-title {
    font-size: 1.2rem;
    font-weight: 600;
    word-break: break-all;
    max-width: 85%;
}

.card-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.lang-badge {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-weight: 500;
}

/* Skeleton Loading */
.skeleton-card {
    height: 200px;
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--border-color) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: 12px;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(8px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fadeIn 0.3s ease;
}

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

.modal-content {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    width: 90%;
    max-width: 1000px;
    height: 85vh;
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.close-btn {
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
}

.close-btn:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 2rem;
    overflow-y: auto;
    flex: 1;
}

/* Buttons */
.btn {
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-secondary {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
    border-color: var(--accent-color);
    background-color: var(--bg-secondary);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Sayfalama Stilleri */
.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-secondary);
    flex-wrap: wrap;
    gap: 1rem;
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.page-indicator {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.bottom-pagination {
    margin-top: 2rem;
    justify-content: center;
    padding-bottom: 2rem;
}

/* Markdown README Rendering & Styling */
.readme-container {
    line-height: 1.6;
    font-size: 1rem;
    color: var(--text-primary);
}

.readme-container h1, .readme-container h2, .readme-container h3 {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.readme-container h1 { font-size: 1.8rem; border-bottom: 1px solid var(--border-color); padding-bottom: 0.3rem; }
.readme-container h2 { font-size: 1.4rem; border-bottom: 1px solid var(--border-color); padding-bottom: 0.3rem; }
.readme-container p { margin-bottom: 1rem; }
.readme-container code {
    background-color: var(--bg-primary);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.9em;
}
.readme-container pre {
    background-color: var(--bg-primary);
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}
.readme-container pre code {
    background-color: transparent;
    padding: 0;
}
.readme-container ul, .readme-container ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
}