/* Modern ve Şık Tasarım */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Login Sayfası Stilleri */
.login-container {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-container h2 {
    color: #333;
    margin-bottom: 30px;
    font-size: 28px;
    font-weight: 300;
}

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

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

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e1e1e1;
    border-radius: 10px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
}

.btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 12px 30px;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    cursor: pointer;
    transition: transform 0.3s ease;
    width: 100%;
    margin-top: 10px;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-danger {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
}

.btn-warning {
    background: linear-gradient(135deg, #feca57 0%, #ff9ff3 100%);
}

.btn-success {
    background: linear-gradient(135deg, #48CAE4 0%, #023E8A 100%);
}

/* Admin Panel Stilleri */
.admin-container {
    background: white;
    margin: 20px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    overflow: hidden;
    min-height: 90vh;
}

.admin-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-header h1 {
    font-size: 24px;
    font-weight: 300;
}

.logout-btn {
    background: rgba(255,255,255,0.2);
    color: white;
    border: 1px solid rgba(255,255,255,0.3);
    padding: 8px 20px;
    border-radius: 20px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.logout-btn:hover {
    background: rgba(255,255,255,0.3);
}

.admin-content {
    padding: 30px;
}

.section-title {
    color: #333;
    margin-bottom: 20px;
    font-size: 20px;
    font-weight: 500;
}

.customer-form {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 15px;
    margin-bottom: 30px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.form-group input[type="text"],
.form-group input[type="tel"],
.form-group input[type="date"] {
    background: white;
}

/* Tablo Stilleri */
.table-container {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.filter-section {
    padding: 20px;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}

.filter-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    align-items: end;
}

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

th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}

th {
    background: #f8f9fa;
    font-weight: 600;
    color: #495057;
}

tr:hover {
    background: #f8f9fa;
}

.action-buttons {
    display: flex;
    gap: 8px;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 14px;
    border-radius: 6px;
}

/* Alert Mesajları */
.alert {
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    display: none;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Modal Stilleri */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
}

.modal-content {
    background: white;
    margin: 5% auto;
    padding: 30px;
    border-radius: 15px;
    width: 90%;
    max-width: 500px;
    position: relative;
}

.close {
    position: absolute;
    right: 20px;
    top: 15px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    color: #aaa;
}

.close:hover {
    color: #000;
}

/* Responsive Tasarım */
@media (max-width: 768px) {
    .admin-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .filter-row {
        grid-template-columns: 1fr;
    }
    
    .table-container {
        overflow-x: auto;
    }
    
    table {
        min-width: 600px;
    }
}

.hidden {
    display: none !important;
}

/* Tarih Butonları */
.date-buttons {
    display: flex;
    gap: 8px;
    margin-top: 8px;
    flex-wrap: wrap;
}

.btn-date {
    background: #f8f9fa;
    color: #495057;
    border: 1px solid #dee2e6;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.btn-date:hover {
    background: #e9ecef;
    border-color: #adb5bd;
    transform: translateY(-1px);
}

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

/* Sayfalama Stilleri */
.pagination-info {
    padding: 15px 20px;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
    text-align: left;
    font-size: 14px;
    color: #6c757d;
}

.pagination-controls {
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    background: #f8f9fa;
    border-top: 1px solid #e9ecef;
}

.pagination-btn {
    background: #667eea;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.pagination-btn:hover:not(:disabled) {
    background: #5a6fd8;
    transform: translateY(-1px);
}

.pagination-btn:disabled {
    background: #6c757d;
    cursor: not-allowed;
    opacity: 0.6;
    transform: none;
}

#pageInfo {
    font-weight: 500;
    color: #495057;
    min-width: 120px;
    text-align: center;
}

/* Select Stil */
.form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e1e1e1;
    border-radius: 10px;
    font-size: 16px;
    background: white;
    transition: border-color 0.3s ease;
}

.form-group select:focus {
    outline: none;
    border-color: #667eea;
}

/* Gün Filtresi Baloncuk Stilleri */
.day-filter-section {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #e9ecef;
}

.filter-label {
    display: block;
    margin-bottom: 10px;
    color: #495057;
    font-weight: 500;
    font-size: 14px;
}

.day-filter-bubbles {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.day-filter-bubble {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 2px solid #dee2e6;
    border-radius: 25px;
    padding: 8px 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 70px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.day-filter-bubble:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
    border-color: #667eea;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.day-filter-bubble.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-color: #667eea;
    color: white;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.25);
}

.day-filter-bubble .day-number {
    font-weight: 600;
    font-size: 13px;
    line-height: 1.2;
}

.day-filter-bubble .customer-count {
    font-size: 11px;
    opacity: 0.8;
    font-weight: 500;
    margin-top: 2px;
}

.day-filter-bubble:hover .customer-count,
.day-filter-bubble.active .customer-count {
    opacity: 0.9;
}

/* Responsive tasarım için baloncuklar */
@media (max-width: 768px) {
    .day-filter-bubbles {
        justify-content: center;
    }
    
    .day-filter-bubble {
        min-width: 60px;
        padding: 6px 12px;
    }
    
    .day-filter-bubble .day-number {
        font-size: 12px;
    }
    
    .day-filter-bubble .customer-count {
        font-size: 10px;
    }
}