/* Reset ve Temel Stiller */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #6366f1;
    --secondary: #06b6d4;
    --secondary-dark: #0891b2;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --light: #f8fafc;
    --border: #e2e8f0;
    --text: #334155;
    --text-light: #64748b;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --gradient-primary: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-danger: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    --gradient-info: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--light);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Login Page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    top: -250px;
    right: -250px;
}

.login-page::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    bottom: -200px;
    left: -200px;
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
    position: relative;
    z-index: 1;
}

.login-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-xl);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.logo {
    font-size: 56px;
    margin-bottom: 16px;
}

.login-header h1 {
    font-size: 28px;
    color: var(--dark);
    margin-bottom: 8px;
    font-weight: 700;
}

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

.login-form {
    margin-bottom: 24px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark);
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.2s ease;
    background: white;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: inherit;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-block {
    width: 100%;
}

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

.btn-success:hover {
    background: #059669;
    transform: translateY(-1px);
}

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

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-1px);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

.login-footer {
    text-align: center;
    color: var(--text-light);
    font-size: 13px;
}

.alert {
    padding: 14px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert::before {
    font-size: 18px;
}

.alert-error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-error::before {
    content: '⚠️';
}

.alert-success {
    background: #f0fdf4;
    color: #065f46;
    border: 1px solid #bbf7d0;
}

.alert-success::before {
    content: '✅';
}

/* Admin Layout */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: white;
    color: var(--text);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    border-right: 1px solid var(--border);
    z-index: 100;
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border);
}

.sidebar-header h2 {
    font-size: 20px;
    margin-bottom: 2px;
    font-weight: 700;
    color: var(--dark);
}

.sidebar-header p {
    font-size: 13px;
    color: var(--text-light);
    font-weight: 500;
}

.sidebar-nav {
    padding: 16px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    color: var(--text);
    text-decoration: none;
    transition: all 0.2s ease;
    margin: 2px 12px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 14px;
    position: relative;
}

.nav-item:hover {
    background: var(--light);
    color: var(--primary);
}

.nav-item.active {
    background: var(--primary);
    color: white;
}

.nav-item .icon {
    font-size: 20px;
}

.nav-item .badge {
    position: absolute;
    right: 15px;
    background: #ef4444;
    color: white;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 12px;
    min-width: 20px;
    text-align: center;
}

.nav-item.active .badge {
    background: rgba(255, 255, 255, 0.3);
}

.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 32px;
    background: var(--light);
    min-height: 100vh;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.content-header h1 {
    font-size: 28px;
    color: var(--dark);
    font-weight: 700;
}

.live-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--danger);
    color: white;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.pulse {
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { 
        opacity: 1; 
    }
    50% { 
        opacity: 0.3; 
    }
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: white;
    padding: 24px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all 0.2s ease;
    border: 1px solid var(--border);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    font-size: 40px;
}

.stat-info {
    flex: 1;
}

.stat-info h3 {
    font-size: 28px;
    color: var(--dark);
    margin-bottom: 4px;
    font-weight: 700;
}

.stat-info p {
    font-size: 13px;
    color: var(--text-light);
    font-weight: 500;
}

.stat-trend {
    font-size: 13px;
    font-weight: 600;
    color: var(--success);
    background: #f0fdf4;
    padding: 4px 10px;
    border-radius: 12px;
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
}

.card {
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: all 0.2s ease;
    border: 1px solid var(--border);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h2 {
    font-size: 18px;
    color: var(--dark);
    font-weight: 700;
}

/* Activity List */
.activity-list {
    padding: 16px 24px;
}

.activity-item {
    display: flex;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

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

.activity-dot {
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
    margin-top: 6px;
    flex-shrink: 0;
}

.activity-content p {
    font-size: 14px;
    color: var(--text);
    margin-bottom: 2px;
}

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

/* Quick Actions */
.quick-actions {
    padding: 24px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.action-btn {
    padding: 20px;
    background: white;
    border: 1px solid var(--border);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    text-decoration: none;
}

.action-btn:hover {
    border-color: var(--primary);
    background: var(--light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--primary);
}

.action-btn .icon {
    font-size: 28px;
    transition: transform 0.2s ease;
}

.action-btn:hover .icon {
    transform: scale(1.1);
}

/* Table */
.table-container {
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    border: 1px solid var(--border);
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table thead {
    background: var(--light);
}

.table th {
    padding: 14px 16px;
    text-align: left;
    font-size: 12px;
    font-weight: 700;
    color: var(--dark);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table td {
    padding: 14px 16px;
    border-top: 1px solid var(--border);
    font-size: 14px;
    color: var(--text);
}

.table tbody tr {
    transition: all 0.2s ease;
}

.table tbody tr:hover {
    background: var(--light);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: #f0fdf4;
    color: #065f46;
}

.badge-danger {
    background: #fef2f2;
    color: #991b1b;
}

.badge-warning {
    background: #fffbeb;
    color: #92400e;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }
    
    .main-content {
        margin-left: 0;
        padding: 20px;
    }
    
    .stats-grid,
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .quick-actions {
        grid-template-columns: 1fr;
    }
    
    .content-header h1 {
        font-size: 24px;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--light);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-light);
}

code {
    font-family: 'Courier New', monospace;
    font-size: 12px;
}

/* Kategori Stilleri */
.nav-category {
    margin: 4px 12px;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    color: var(--text);
    cursor: pointer;
    transition: all 0.2s ease;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    user-select: none;
}

.category-header:hover {
    background: var(--light);
    color: var(--primary);
}

.category-header .icon {
    font-size: 20px;
}

.category-header .arrow {
    margin-left: auto;
    font-size: 10px;
    transition: transform 0.2s ease;
}

.nav-category.collapsed .arrow {
    transform: rotate(-90deg);
}

.category-items {
    max-height: 500px;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.2s ease;
    opacity: 1;
}

.nav-category.collapsed .category-items {
    max-height: 0;
    opacity: 0;
}

.sub-item {
    margin-left: 16px;
    padding: 8px 20px;
    font-size: 13px;
}

.sub-item .icon {
    font-size: 18px;
}

.logout-item {
    margin-top: 16px;
    border-top: 1px solid var(--border);
    padding-top: 16px;
}

.logout-item:hover {
    background: #fef2f2;
    color: var(--danger);
}


/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.12);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    flex-shrink: 0;
}

.stat-info {
    flex: 1;
}

.stat-info h3 {
    font-size: 13px;
    color: #636e72;
    margin: 0 0 8px 0;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: #2d3436;
    margin: 0;
}

/* Data Table */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background: #f8f9fa;
}

.data-table th {
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    color: #2d3436;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid #e0e0e0;
}

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid #f0f0f0;
    color: #2d3436;
    font-size: 14px;
}

.data-table tbody tr {
    transition: background 0.2s ease;
}

.data-table tbody tr:hover {
    background: #f8f9fa;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success {
    background: #d4edda;
    color: #155724;
}

.badge-danger {
    background: #f8d7da;
    color: #721c24;
}

.badge-warning {
    background: #fff3cd;
    color: #856404;
}

.badge-info {
    background: #d1ecf1;
    color: #0c5460;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
}

.btn-primary {
    background: #6C5CE7;
    color: white;
}

.btn-primary:hover {
    background: #5f4dd1;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(108, 92, 231, 0.3);
}

.btn-success {
    background: #00B894;
    color: white;
}

.btn-success:hover {
    background: #00a383;
}

.btn-danger {
    background: #D63031;
    color: white;
}

.btn-danger:hover {
    background: #c22b2c;
}

.btn-secondary {
    background: #f8f9fa;
    color: #636e72;
    border: 1px solid #e0e0e0;
}

.btn-secondary:hover {
    background: #e9ecef;
}

/* Form Controls */
.form-control {
    padding: 10px 14px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    color: #2d3436;
    transition: all 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: #6C5CE7;
    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.1);
}

/* Card Actions */
.card-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.card-body {
    padding: 24px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #636e72;
}

.empty-state-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state-title {
    font-size: 18px;
    font-weight: 600;
    color: #2d3436;
    margin-bottom: 8px;
}

.empty-state-text {
    font-size: 14px;
    color: #636e72;
}

/* Loading State */
.loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #6C5CE7;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Responsive */
@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .data-table {
        font-size: 12px;
    }
    
    .data-table th,
    .data-table td {
        padding: 10px 8px;
    }
}