/* 
 * Push Bildirim Paneli - Modern Koyu Tema
 * Temiz, Profesyonel UI Tasarımı
 */

:root {
    --sidebar-width: 260px;
    --header-height: 70px;
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #06b6d4;
    
    --bg-dark: #0f0f14;
    --bg-darker: #0a0a0e;
    --bg-card: #16161d;
    --bg-card-hover: #1c1c25;
    --bg-input: #1c1c25;
    
    --border-color: #2a2a35;
    --border-light: #3a3a45;
    
    --text-primary: #f1f1f3;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.app-wrapper { display: flex; min-height: 100vh; }

/* Kenar Çubuğu */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-darker);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 1000;
    transition: transform var(--transition-normal);
}

.sidebar-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 700;
}

.sidebar-brand i { font-size: 1.5rem; color: var(--primary-color); }

.sidebar-nav { flex: 1; padding: 1.5rem 0; overflow-y: auto; }
.sidebar-nav .nav-item { padding: 0 1rem; margin-bottom: 0.25rem; }

.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-weight: 500;
}

.sidebar-nav .nav-link i { font-size: 1.2rem; width: 24px; text-align: center; }
.sidebar-nav .nav-link:hover { color: var(--text-primary); background: var(--bg-card); }

.sidebar-nav .nav-link.active {
    color: white;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.nav-section {
    padding: 1.5rem 1rem 0.5rem 1.5rem;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

.sidebar-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.user-info i { font-size: 1.25rem; }

/* Ana İçerik */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.content-header {
    height: var(--header-height);
    background: var(--bg-darker);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 2rem;
    gap: 1rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.page-title { font-size: 1.5rem; font-weight: 600; margin: 0; flex: 1; }
.header-actions { display: flex; gap: 0.75rem; }
.sidebar-toggle { display: none; font-size: 1.5rem; color: var(--text-secondary); }
.content-body { flex: 1; padding: 2rem; }

/* Kartlar */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.card:hover { border-color: var(--border-light); }
.card-header { background: transparent; border-bottom: 1px solid var(--border-color); padding: 1.25rem 1.5rem; font-weight: 600; }
.card-body { padding: 1.5rem; }
.card-footer { background: transparent; border-top: 1px solid var(--border-color); padding: 1rem 1.5rem; }

/* İstatistik Kartları */
.stat-card { position: relative; overflow: hidden; }
.stat-card .stat-icon { position: absolute; top: 1rem; right: 1rem; font-size: 2.5rem; opacity: 0.15; }
.stat-card .stat-value { font-size: 2rem; font-weight: 700; margin-bottom: 0.25rem; }
.stat-card .stat-label { color: var(--text-secondary); font-size: 0.875rem; font-weight: 500; }

.stat-card.primary { border-left: 4px solid var(--primary-color); }
.stat-card.success { border-left: 4px solid var(--success-color); }
.stat-card.warning { border-left: 4px solid var(--warning-color); }
.stat-card.danger { border-left: 4px solid var(--danger-color); }
.stat-card.info { border-left: 4px solid var(--info-color); }

/* Butonlar */
.btn {
    font-weight: 500;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover), var(--primary-color));
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-success { background: var(--success-color); border: none; }
.btn-success:hover { background: #059669; }
.btn-danger { background: var(--danger-color); border: none; }

.btn-outline-primary { border: 1px solid var(--primary-color); color: var(--primary-color); background: transparent; }
.btn-outline-primary:hover { background: var(--primary-color); color: white; }

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

.btn-sm { padding: 0.375rem 0.875rem; font-size: 0.875rem; }
.btn-lg { padding: 0.875rem 1.75rem; font-size: 1.1rem; }

/* Formlar */
.form-control, .form-select {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    transition: all var(--transition-fast);
}

.form-control:focus, .form-select:focus {
    background: var(--bg-input);
    border-color: var(--primary-color);
    color: var(--text-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-control::placeholder { color: var(--text-muted); }
.form-label { font-weight: 500; margin-bottom: 0.5rem; color: var(--text-secondary); }
.form-text { color: var(--text-muted); font-size: 0.8rem; }
.input-group-text { background: var(--bg-card); border: 1px solid var(--border-color); color: var(--text-secondary); }

/* Tablolar */
.table {
    --bs-table-bg: transparent;
    --bs-table-color: var(--text-primary);
    --bs-table-border-color: var(--border-color);
    margin-bottom: 0;
}

.table > thead { background: var(--bg-darker); }

.table > thead > tr > th {
    font-weight: 600;
    color: var(--text-secondary);
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table > tbody > tr > td { padding: 1rem 1.25rem; vertical-align: middle; border-bottom: 1px solid var(--border-color); }
.table > tbody > tr:hover { background: var(--bg-card-hover); }
.table > tbody > tr:last-child > td { border-bottom: none; }

/* Rozetler */
.badge { font-weight: 500; padding: 0.35em 0.75em; border-radius: var(--radius-sm); }
.badge.bg-primary { background: rgba(99, 102, 241, 0.15) !important; color: var(--primary-color); }
.badge.bg-success { background: rgba(16, 185, 129, 0.15) !important; color: var(--success-color); }
.badge.bg-warning { background: rgba(245, 158, 11, 0.15) !important; color: var(--warning-color); }
.badge.bg-danger { background: rgba(239, 68, 68, 0.15) !important; color: var(--danger-color); }
.badge.bg-info { background: rgba(6, 182, 212, 0.15) !important; color: var(--info-color); }
.badge.bg-secondary { background: var(--bg-card-hover) !important; color: var(--text-secondary); }

/* Uyarılar */
.alert { border: none; border-radius: var(--radius-md); padding: 1rem 1.25rem; }
.alert-success { background: rgba(16, 185, 129, 0.1); color: var(--success-color); }
.alert-danger { background: rgba(239, 68, 68, 0.1); color: var(--danger-color); }
.alert-warning { background: rgba(245, 158, 11, 0.1); color: var(--warning-color); }
.alert-info { background: rgba(6, 182, 212, 0.1); color: var(--info-color); }

/* Modal */
.modal-content { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-lg); }
.modal-header { border-bottom: 1px solid var(--border-color); padding: 1.25rem 1.5rem; }
.modal-title { font-weight: 600; }
.modal-body { padding: 1.5rem; }
.modal-footer { border-top: 1px solid var(--border-color); padding: 1rem 1.5rem; }
.btn-close { filter: invert(1); opacity: 0.5; }
.btn-close:hover { opacity: 1; }

/* Sayfalama */
.pagination { gap: 0.25rem; }
.page-link { background: var(--bg-card); border: 1px solid var(--border-color); color: var(--text-secondary); border-radius: var(--radius-sm); padding: 0.5rem 0.875rem; }
.page-link:hover { background: var(--bg-card-hover); border-color: var(--border-light); color: var(--text-primary); }
.page-item.active .page-link { background: var(--primary-color); border-color: var(--primary-color); color: white; }
.page-item.disabled .page-link { background: var(--bg-input); border-color: var(--border-color); color: var(--text-muted); }

/* Boş Durum */
.empty-state { text-align: center; padding: 4rem 2rem; color: var(--text-secondary); }
.empty-state i { font-size: 4rem; opacity: 0.3; margin-bottom: 1rem; }
.empty-state h3 { font-size: 1.25rem; margin-bottom: 0.5rem; color: var(--text-primary); }
.empty-state p { margin-bottom: 1.5rem; }

/* Kod Bloğu */
.code-block {
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.85rem;
    overflow-x: auto;
    position: relative;
}

.code-block code { color: var(--success-color); }

/* API Anahtarı Gösterimi */
.api-key-display {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
}

.api-key-display code {
    flex: 1;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.85rem;
    color: var(--info-color);
    word-break: break-all;
}

/* İlerleme Çubuğu */
.progress { background: var(--bg-input); border-radius: var(--radius-sm); height: 8px; }
.progress-bar { background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)); border-radius: var(--radius-sm); }

/* İstatistik Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

/* Resim Önizleme */
.image-preview {
    width: 100%;
    max-width: 300px;
    height: 150px;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--bg-input);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.image-preview:hover { border-color: var(--primary-color); }
.image-preview img { max-width: 100%; max-height: 100%; object-fit: cover; }
.image-preview .placeholder { color: var(--text-muted); text-align: center; }
.image-preview .placeholder i { font-size: 2rem; display: block; margin-bottom: 0.5rem; }

/* Responsive */
@media (max-width: 991.98px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.show { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .sidebar-toggle { display: block; }
    .content-body { padding: 1.5rem; }
}

@media (max-width: 575.98px) {
    .content-header { padding: 0 1rem; }
    .content-body { padding: 1rem; }
    .page-title { font-size: 1.25rem; }
    .stats-grid { grid-template-columns: 1fr; }
}

/* Animasyonlar */
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.fade-in { animation: fadeIn 0.3s ease; }

/* Yükleniyor Animasyonu */
.spinner { width: 40px; height: 40px; border: 3px solid var(--border-color); border-top-color: var(--primary-color); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Giriş Sayfası */
.login-wrapper { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-dark) 100%); }
.login-card { width: 100%; max-width: 420px; padding: 2.5rem; }
.login-logo { text-align: center; margin-bottom: 2rem; }
.login-logo i { font-size: 3rem; color: var(--primary-color); }
.login-logo h1 { font-size: 1.5rem; margin-top: 0.5rem; font-weight: 700; }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-darker); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-light); }