/* ==================== GENEL STİLLER ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* ==================== TYPOGRAPHY ==================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
}

a {
    color: #3498db;
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: #2980b9;
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-align: center;
}

.btn-primary {
    background: #3498db;
    color: white;
}

.btn-primary:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

.btn-success {
    background: #27ae60;
    color: white;
}

.btn-success:hover {
    background: #219653;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(39, 174, 96, 0.3);
}

.btn-danger {
    background: #e74c3c;
    color: white;
}

.btn-danger:hover {
    background: #c0392b;
    transform: translateY(-2px);
}

.btn-warning {
    background: #f39c12;
    color: white;
}

.btn-warning:hover {
    background: #d68910;
}

.btn-outline {
    background: transparent;
    border: 2px solid #3498db;
    color: #3498db;
}

.btn-outline:hover {
    background: #3498db;
    color: white;
}

.btn-sm {
    padding: 5px 10px;
    font-size: 0.875rem;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-large {
    padding: 15px 30px;
    font-size: 1.1rem;
}

/* ==================== FORMS ==================== */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #2c3e50;
}

.form-control {
    width: 100%;
    padding: 10px 15px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-row .form-group {
    flex: 1;
    margin-bottom: 0;
}

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

/* ==================== CARDS ==================== */
.card {
    background: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    margin-bottom: 20px;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.card-details {
    margin: 15px 0;
}

.card-details p {
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.card-details i {
    color: #3498db;
    width: 20px;
    margin-right: 10px;
}

/* ==================== GRID SYSTEM ==================== */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

/* ==================== NAVBAR ==================== */
.navbar {
    background: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: #2c3e50;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo i {
    color: #3498db;
}

.nav-links {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-link {
    color: #2c3e50;
    font-weight: 500;
    padding: 8px 15px;
    border-radius: 5px;
    transition: all 0.3s;
}

.nav-link:hover {
    background: #f8f9fa;
    color: #3498db;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #2c3e50;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu {
    display: none;
    background: white;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.mobile-nav-link {
    display: block;
    padding: 10px 0;
    color: #2c3e50;
    border-bottom: 1px solid #eee;
}

.mobile-nav-link:last-child {
    border-bottom: none;
}

/* ==================== HERO SECTION ==================== */
.hero {
    background: linear-gradient(135deg, #3498db 0%, #2c3e50 100%);
    color: white;
    padding: 100px 0;
    text-align: center;
    margin-bottom: 50px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

/* ==================== SERVICES ==================== */
.services-section {
    text-align: center;
    padding: 50px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
    color: #2c3e50;
}

.section-title i {
    color: #3498db;
    margin-right: 10px;
}

.service-card {
    text-align: center;
    padding: 30px 20px;
}

.service-icon {
    font-size: 3rem;
    color: #3498db;
    margin-bottom: 20px;
}

/* ==================== TABLES ==================== */
.table-responsive {
    overflow-x: auto;
    margin: 20px 0;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.admin-table th {
    background: #2c3e50;
    color: white;
    padding: 15px;
    text-align: left;
    font-weight: 600;
}

.admin-table td {
    padding: 15px;
    border-bottom: 1px solid #eee;
}

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

/* ==================== BADGES ==================== */
.badge {
    display: inline-block;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

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

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

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

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

/* ==================== MODALS ==================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    overflow-y: auto;
}

.modal-content {
    background: white;
    width: 90%;
    max-width: 600px;
    margin: 50px auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    padding: 20px;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 20px;
    border-top: 1px solid #eee;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #999;
    cursor: pointer;
    padding: 5px;
}

.close-modal:hover {
    color: #333;
}

/* ==================== TOAST ==================== */
#toastContainer {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 3000;
}

.toast {
    background: white;
    padding: 15px 20px;
    border-radius: 5px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: toastSlideIn 0.3s;
    min-width: 300px;
}

@keyframes toastSlideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast i {
    font-size: 1.2rem;
}

.toast.success {
    border-left: 4px solid #27ae60;
    color: #155724;
}

.toast.error {
    border-left: 4px solid #e74c3c;
    color: #721c24;
}

.toast.info {
    border-left: 4px solid #3498db;
    color: #0c5460;
}

/* ==================== LOGIN/CONTAINERS ==================== */
.login-container, .auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 20px;
}

.login-card, .auth-container {
    background: white;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    padding: 30px;
}

.login-header, .auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h2, .auth-header h2 {
    color: #2c3e50;
}

.auth-tabs {
    display: flex;
    margin-bottom: 20px;
    border-bottom: 2px solid #eee;
}

.auth-tab {
    flex: 1;
    padding: 15px;
    background: none;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    color: #666;
    cursor: pointer;
    transition: all 0.3s;
}

.auth-tab.active {
    color: #3498db;
    border-bottom: 2px solid #3498db;
}

.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
}

/* ==================== ADMIN PANEL ==================== */
.admin-navbar, .user-navbar {
    background: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 15px 0;
}

.admin-nav-container, .user-nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-brand, .user-brand {
    display: flex;
    align-items: center;
    gap: 15px;
}

.admin-badge, .user-badge {
    background: #3498db;
    color: white;
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.875rem;
    font-weight: 600;
}

.admin-user, .user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.admin-container, .user-container {
    display: flex;
    min-height: calc(100vh - 70px);
}

.admin-sidebar, .user-sidebar {
    width: 250px;
    background: #2c3e50;
    color: white;
    padding: 20px 0;
}

.sidebar-header, .user-profile {
    padding: 0 20px 20px;
    border-bottom: 1px solid #34495e;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 15px;
}

.profile-avatar {
    font-size: 3rem;
    color: #3498db;
}

.profile-info h4 {
    margin-bottom: 5px;
    color: white;
}

.sidebar-menu, .user-menu {
    list-style: none;
    padding: 20px 0;
}

.sidebar-menu li, .user-menu li {
    padding: 12px 20px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 10px;
    color: #bdc3c7;
}

.sidebar-menu li:hover, .user-menu li:hover,
.sidebar-menu li.active, .user-menu li.active {
    background: #34495e;
    color: white;
    border-left: 4px solid #3498db;
}

.sidebar-menu li i, .user-menu li i {
    width: 20px;
}

.admin-main, .user-main {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
}

.admin-section, .user-section {
    background: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.admin-header, .user-header {
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-header h1, .user-header h1 {
    margin-bottom: 10px;
}

.admin-actions, .user-actions {
    display: flex;
    gap: 10px;
}

/* ==================== STATS ==================== */
.stats-grid, .user-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.stat-card, .user-stat-card {
    background: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 15px;
}

.stat-icon, .user-stat-icon {
    font-size: 2.5rem;
    color: #3498db;
}

.stat-info h3, .user-stat-info h3 {
    font-size: 2rem;
    margin-bottom: 5px;
    color: #2c3e50;
}

/* ==================== SEARCH ==================== */
.search-box {
    position: relative;
    margin-bottom: 20px;
}

.search-input {
    width: 100%;
    padding: 12px 20px 12px 45px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.search-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
}

/* ==================== ACTION BUTTONS ==================== */
.action-buttons {
    display: flex;
    gap: 5px;
}

/* ==================== RESERVATIONS ==================== */
.reservations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
}

.reservation-card {
    background: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #3498db;
}

.reservation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.reservation-details {
    margin-bottom: 15px;
}

.reservation-actions {
    display: flex;
    gap: 10px;
}

/* ==================== EMPTY STATE ==================== */
.empty-state {
    text-align: center;
    padding: 50px 20px;
    color: #666;
}

.empty-state i {
    font-size: 4rem;
    color: #ddd;
    margin-bottom: 20px;
}

/* ==================== FOOTER ==================== */
.footer {
    background: #2c3e50;
    color: white;
    padding: 50px 0 20px;
    margin-top: 50px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3 {
    color: white;
    margin-bottom: 20px;
}

.footer-section p {
    margin-bottom: 10px;
    color: #bdc3c7;
}

.footer-section i {
    color: #3498db;
    margin-right: 10px;
    width: 20px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: #34495e;
    color: white;
    border-radius: 50%;
    transition: all 0.3s;
}

.social-links a:hover {
    background: #3498db;
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #34495e;
    color: #bdc3c7;
    font-size: 0.9rem;
}

/* ==================== RESPONSIVE DESIGN ==================== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .mobile-menu.active {
        display: block;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .grid {
        grid-template-columns: 1fr;
    }
    
    .admin-container, .user-container {
        flex-direction: column;
    }
    
    .admin-sidebar, .user-sidebar {
        width: 100%;
        position: sticky;
        top: 0;
        z-index: 100;
    }
    
    .sidebar-menu, .user-menu {
        display: flex;
        overflow-x: auto;
        padding: 10px 0;
    }
    
    .sidebar-menu li, .user-menu li {
        white-space: nowrap;
        border-left: none;
        border-bottom: 4px solid transparent;
    }
    
    .sidebar-menu li.active, .user-menu li.active {
        border-left: none;
        border-bottom: 4px solid #3498db;
    }
    
    .admin-main, .user-main {
        padding: 15px;
    }
    
    .admin-header, .user-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .stats-grid, .user-stats {
        grid-template-columns: 1fr;
    }
    
    .reservations-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
        margin: 20px auto;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    h4 { font-size: 1.25rem; }
    
    .btn {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    
    .card {
        padding: 15px;
    }
}

/* ==================== PRINT STYLES ==================== */
@media print {
    .navbar, .footer, .btn, .modal, .toast {
        display: none !important;
    }
    
    .container {
        width: 100%;
        max-width: none;
        padding: 0;
    }
    
    .card, .admin-section, .user-section {
        box-shadow: none;
        border: 1px solid #ddd;
        page-break-inside: avoid;
    }
}