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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f5f7fa;
    color: #333;
}

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

/* Sidebar Styles */
.sidebar {
    width: 280px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px 0;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    overflow-y: auto;
}

.logo {
    padding: 0 20px 30px;
    border-bottom: 2px solid rgba(255,255,255,0.2);
    margin-bottom: 20px;
}

.logo h2 {
    font-size: 24px;
    font-weight: 600;
    text-align: center;
}

.menu-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    background: rgba(255,255,255,0.1);
    margin: 5px 10px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
}

.menu-section:hover {
    background: rgba(255,255,255,0.2);
}

.menu-title {
    font-size: 16px;
    font-weight: 500;
}

.menu-link, .menu-collapse {
    font-size: 14px;
    color: white;
    text-decoration: none;
}

.menu-item {
    display: block;
    padding: 15px 20px;
    margin: 5px 10px;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s;
    font-size: 15px;
}

.menu-item:hover {
    background: rgba(255,255,255,0.15);
    transform: translateX(5px);
}

.menu-item.active {
    background: rgba(255,255,255,0.3);
    font-weight: 600;
    border-left: 4px solid #fff;
}

/* Main Content Styles */
.main-content {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #e0e6ed;
}

.content-header h1 {
    font-size: 28px;
    color: #2c3e50;
}

.btn-back {
    padding: 10px 20px;
    background: #95a5a6;
    color: white;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s;
}

.btn-back:hover {
    background: #7f8c8d;
}

/* Dashboard Cards */
.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.card {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    transition: all 0.3s;
}

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

.card h3 {
    color: #667eea;
    margin-bottom: 10px;
}

.card p {
    color: #666;
    margin-bottom: 15px;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background: #667eea;
    color: white;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 14px;
}

.btn:hover {
    background: #5568d3;
}

.btn-primary {
    background: #667eea;
    padding: 12px 30px;
    font-size: 16px;
}

.btn-primary:hover {
    background: #5568d3;
}

/* Form Styles */
.form-container {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    margin-bottom: 30px;
}

.form-container h2 {
    color: #2c3e50;
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102,126,234,0.1);
}

/* Table Styles */
.table-container {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.table-container h2 {
    color: #2c3e50;
    margin-bottom: 20px;
}

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

thead {
    background: #667eea;
    color: white;
}

th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #e0e6ed;
}

tbody tr:hover {
    background: #f8f9fa;
}

.status-badge {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.status-beklemede {
    background: #fff3cd;
    color: #856404;
}

.status-onaylandi {
    background: #d4edda;
    color: #155724;
}

.status-reddedildi {
    background: #f8d7da;
    color: #721c24;
}

.btn-action {
    padding: 5px 12px;
    margin: 0 3px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.3s;
}

.btn-approve {
    background: #28a745;
    color: white;
}

.btn-approve:hover {
    background: #218838;
}

.btn-reject {
    background: #dc3545;
    color: white;
}

.btn-reject:hover {
    background: #c82333;
}

.btn-delete {
    background: #6c757d;
    color: white;
}

.btn-delete:hover {
    background: #5a6268;
}

.loading {
    text-align: center;
    padding: 20px;
    color: #999;
}

/* Coming Soon */
.coming-soon {
    text-align: center;
    padding: 100px 20px;
}

.coming-soon h2 {
    font-size: 48px;
    color: #667eea;
    margin-bottom: 20px;
}

.coming-soon p {
    font-size: 18px;
    color: #666;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .content-header {
        flex-direction: column;
        gap: 15px;
    }
}