:root {
    --sidebar-width: 280px;
    --top-bar-height: 60px;
    --background-color: #0d1117;
    --border-color: #21262d;
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --hover-bg: #21262d;
    --active-bg: #1f6feb;
}

/* Safari CSS Variables Fallback */
.sidebar {
    width: 280px; /* Fallback for --sidebar-width */
}

.top-bar {
    height: 60px; /* Fallback for --top-bar-height */
}

.mobile-header {
    height: 60px; /* Fallback for --top-bar-height */
}

/* Mobile Header */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--top-bar-height);
    background: var(--background-color);
    border-bottom: 1px solid var(--border-color);
    z-index: 1003;
    padding: 0 0.75rem;
    display: -webkit-box; /* Safari fallback */
    display: -webkit-flex; /* Safari fallback */
    display: flex;
    -webkit-box-align: center; /* Safari fallback */
    -webkit-align-items: center; /* Safari fallback */
    align-items: center;
    gap: 0.5rem;
}

.mobile-left {
    -webkit-flex: 0 0 auto; /* Safari fallback */
    flex: 0 0 auto;
    width: 80px;
}

.mobile-center {
    -webkit-flex: 1; /* Safari fallback */
    flex: 1;
    display: -webkit-box; /* Safari fallback */
    display: -webkit-flex; /* Safari fallback */
    display: flex;
    -webkit-box-pack: center; /* Safari fallback */
    -webkit-justify-content: center; /* Safari fallback */
    justify-content: center;
    -webkit-box-align: center; /* Safari fallback */
    -webkit-align-items: center; /* Safari fallback */
    align-items: center;
    min-width: 0;
}

.mobile-right {
    -webkit-flex: 0 0 auto; /* Safari fallback */
    flex: 0 0 auto;
    width: 40px;
    display: -webkit-box; /* Safari fallback */
    display: -webkit-flex; /* Safari fallback */
    display: flex;
    -webkit-box-pack: end; /* Safari fallback */
    -webkit-justify-content: flex-end; /* Safari fallback */
    justify-content: flex-end;
}

.mobile-logo-link {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 0.9rem;
    text-decoration: none;
    white-space: nowrap;
    -webkit-transition: color 0.3s ease; /* Safari fallback */
    transition: color 0.3s ease;
}

.mobile-logo-link:hover {
    color: var(--secondary-color);
}

.mobile-user-info {
    display: -webkit-box; /* Safari fallback */
    display: -webkit-flex; /* Safari fallback */
    display: flex;
    -webkit-box-align: center; /* Safari fallback */
    -webkit-align-items: center; /* Safari fallback */
    align-items: center;
    gap: 0.4rem;
    min-width: 0;
}

.mobile-user-avatar {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.7rem;
    flex-shrink: 0;
}

.mobile-user-details {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    min-width: 0;
}

.mobile-user-name {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.7rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 80px;
}

.mobile-user-balance {
    color: var(--text-secondary);
    font-size: 0.65rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 80px;
}

.mobile-logout-btn {
    background: #ef4444;
    color: white;
    padding: 0.3rem 0.6rem;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.7rem;
    font-weight: 500;
    transition: all 0.3s ease;
    flex-shrink: 0;
    white-space: nowrap;
}

.mobile-logout-btn:hover {
    background: #dc2626;
}

.mobile-auth-buttons {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    min-width: 0;
}

.mobile-auth-btn {
    padding: 0.3rem 0.6rem;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.7rem;
    font-weight: 500;
    transition: all 0.3s ease;
    flex-shrink: 0;
    white-space: nowrap;
}

.mobile-auth-btn.login {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.mobile-auth-btn.login:hover {
    background: var(--hover-bg);
}

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

.mobile-auth-btn.register:hover {
    background: var(--secondary-color);
}

.mobile-hamburger {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    padding: 0.3rem;
    border-radius: 6px;
    -webkit-transition: background-color 0.3s ease; /* Safari fallback */
    transition: background-color 0.3s ease;
    -webkit-flex-shrink: 0; /* Safari fallback */
    flex-shrink: 0;
}

.mobile-hamburger:hover {
    background: var(--hover-bg);
}

/* Top Bar */
.top-bar {
    position: fixed;
    top: 0;
    right: 0;
    left: var(--sidebar-width);
    height: var(--top-bar-height);
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #27272a;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 0 2rem;
    transition: left 0.3s ease;
}

.top-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* User Info */
.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-avatar {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, #58a6ff, #7bb3ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0f0f23;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: 0 0 15px rgba(88, 166, 255, 0.4);
}

.user-details {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.user-name {
    color: #f0f6fc;
    font-weight: 600;
    font-size: 1rem;
}

.user-balance {
    color: #58a6ff;
    font-size: 0.9rem;
    font-weight: 500;
}

.logout-btn {
    background: #ff6b6b;
    color: white;
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(255, 107, 107, 0.3);
}

.logout-btn:hover {
    background: #ff5252;
    box-shadow: 0 0 20px rgba(255, 107, 107, 0.6);
    transform: translateY(-2px);
}

/* Auth Buttons */
.auth-buttons {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.auth-btn {
    padding: 0.5rem 1.5rem;
    border: 2px solid #58a6ff;
    background: transparent;
    color: #58a6ff;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(88, 166, 255, 0.3);
}

.auth-btn:hover {
    background: #58a6ff;
    color: #0f0f23;
    box-shadow: 0 0 20px rgba(88, 166, 255, 0.6);
    transform: translateY(-2px);
}

.auth-btn.register {
    background: #58a6ff;
    color: #0f0f23;
    box-shadow: 0 0 15px rgba(88, 166, 255, 0.4);
}

.auth-btn.register:hover {
    background: #7bb3ff;
    box-shadow: 0 0 25px rgba(88, 166, 255, 0.7);
}

/* Sidebar Overlay */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    -webkit-transition: all 0.3s ease; /* Safari fallback */
    transition: all 0.3s ease;
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--background-color);
    border-right: 1px solid var(--border-color);
    z-index: 1002;
    display: -webkit-box; /* Safari fallback */
    display: -webkit-flex; /* Safari fallback */
    display: flex;
    -webkit-box-orient: vertical; /* Safari fallback */
    -webkit-flex-direction: column; /* Safari fallback */
    flex-direction: column;
    -webkit-transition: left 0.3s ease; /* Safari fallback */
    transition: left 0.3s ease;
}

.sidebar-header {
    padding: 1.5rem;
        border-bottom: 1px solid var(--border-color);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    position: relative;
    z-index: 10;
}

.sidebar-logo {
    color: #ffffff !important;
    font-weight: 800;
    font-size: 1.5rem;
    text-decoration: none;
    display: block !important;
    text-align: center;
    opacity: 1 !important;
    visibility: visible !important;
    -webkit-transition: all 0.3s ease; /* Safari fallback */
    transition: all 0.3s ease;
}

.sidebar-logo:hover {
    -webkit-transform: scale(1.05); /* Safari fallback */
    transform: scale(1.05);
    color: #ffffff;
}

.sidebar-menu {
    -webkit-flex: 1; /* Safari fallback */
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

.menu-item {
    display: -webkit-box; /* Safari fallback */
    display: -webkit-flex; /* Safari fallback */
    display: flex;
    -webkit-box-align: center; /* Safari fallback */
    -webkit-align-items: center; /* Safari fallback */
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    color: var(--text-primary);
    text-decoration: none;
    -webkit-transition: all 0.3s ease; /* Safari fallback */
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
    margin: 0.25rem 0.5rem;
    border-radius: 8px;
}

.menu-item:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
    -webkit-transform: translateX(4px); /* Safari fallback */
    transform: translateX(4px);
}

.menu-item.active {
    background: var(--active-bg);
    color: white;
    border-left-color: var(--primary-color);
}
    
    .menu-item i {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
    }
    
    .menu-item span {
    font-weight: 500;
    font-size: 0.95rem;
}

/* Main Content */
.main-content {
    padding: 2rem;
    min-height: calc(100vh - var(--top-bar-height));
    margin-top: var(--top-bar-height);
    margin-left: var(--sidebar-width);
    -webkit-transition: margin-left 0.3s ease; /* Safari fallback */
    transition: margin-left 0.3s ease;
}

/* Desktop Styles - EN ÜSTTE */
@media (min-width: 769px) {
    .mobile-header {
        display: none !important;
    }
    
    .top-bar {
        display: -webkit-box !important; /* Safari fallback */
        display: -webkit-flex !important; /* Safari fallback */
        display: flex !important;
        left: var(--sidebar-width) !important;
    }
    
    .sidebar {
        left: 0 !important;
        width: var(--sidebar-width) !important;
        max-width: none !important;
    }
    
    .main-content {
        position: absolute !important;
        top: var(--top-bar-height) !important;
        left: var(--sidebar-width) !important;
        right: 0 !important;
        bottom: 0 !important;
        margin: 0 !important;
        padding: 2rem !important;
        max-width: none !important;
        width: auto !important;
        overflow-y: auto !important;
    }
}

/* Mobile Styles */
@media (max-width: 768px) {
    .mobile-header {
        display: -webkit-box !important; /* Safari fallback */
        display: -webkit-flex !important; /* Safari fallback */
        display: flex !important;
    }
    
    .top-bar {
        display: none !important;
    }
    
    .sidebar {
        left: -280px !important;
        width: 100% !important;
        max-width: 280px !important;
    }
    
    .sidebar.open {
        left: 0 !important;
    }
    
    .main-content {
        margin-left: 0 !important;
        margin-top: 0 !important;
        padding: 1rem !important;
        padding-top: calc(var(--top-bar-height) + 1rem) !important;
    }
    
    body.sidebar-open .mobile-header {
        -webkit-transform: translateY(-100%); /* Safari fallback */
        transform: translateY(-100%);
        opacity: 0;
    }
    
    body.sidebar-open .main-content {
        opacity: 0.3;
        pointer-events: none;
        -webkit-transition: opacity 0.3s ease; /* Safari fallback */
        transition: opacity 0.3s ease;
    }
}

/* Scrollbar */
.sidebar-menu::-webkit-scrollbar {
    width: 4px;
}

.sidebar-menu::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-menu::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

.sidebar-menu::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* İletişim Bilgisi */
.contact-info {
    padding: 1rem !important;
    margin: 0 !important;
    border-top: 1px solid var(--border-color) !important;
    width: 100% !important;
    box-sizing: border-box !important;
    text-align: center !important;
    position: relative !important;
    left: 0 !important;
    right: 0 !important;
    display: block !important;
    float: none !important;
    clear: both !important;
}

.contact-button {
    display: inline-block !important;
    padding: 0.5rem 1rem !important;
    background: #10b981 !important;
    border: 2px solid #10b981 !important;
    border-radius: 6px !important;
    color: white !important;
    text-decoration: none !important;
    font-size: 0.85rem !important;
    font-weight: 500 !important;
    transition: all 0.3s ease !important;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.3) !important;
    text-align: center !important;
    width: auto !important;
    min-width: 120px !important;
}

.contact-button:hover {
    background: #059669 !important;
    border-color: #059669 !important;
    color: white !important;
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.6) !important;
    transform: translateY(-2px) !important;
}

.contact-button:active {
    transform: translateY(0) !important;
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.8) !important;
}

/* Sosyal Medya Butonları */
.social-media-section {
    padding: 1.5rem 1rem;
    border-top: 1px solid var(--border-color);
    margin-top: 0;
}

.social-media-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.social-media-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    color: #ffffff;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 2.2rem;
}

.social-media-icon:hover {
    transform: translateY(-2px);
    color: #ffffff;
    opacity: 0.8;
}

/* Sosyal medya platform renkleri - Beyaz */
.social-media-icon i.fa-instagram {
    color: #ffffff;
}

.social-media-icon i.fa-youtube {
    color: #ffffff;
}

.social-media-icon i.fa-telegram {
    color: #ffffff;
}

.social-media-icon:hover i.fa-instagram {
    color: #ffffff;
    opacity: 0.7;
}

.social-media-icon:hover i.fa-youtube {
    color: #ffffff;
    opacity: 0.7;
}

.social-media-icon:hover i.fa-telegram {
    color: #ffffff;
    opacity: 0.7;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .social-media-section {
        padding: 0.75rem;
    }
    
    .social-media-grid {
        gap: 1rem;
    }
    
    .social-media-icon {
        width: 55px;
        height: 55px;
        font-size: 1.8rem;
    }
}

/* Extra small devices */
@media (max-width: 480px) {
    .social-media-icon {
        width: 50px;
        height: 50px;
        font-size: 1.6rem;
    }
}