/**
 * Ana CSS Dosyası - Glassmorphism Tasarım
 * Modern, premium glassmorphism UI sistemi
 * Mobile-first responsive tasarım
 */

/* ============================================
   CSS CUSTOM PROPERTIES (Variables)
   ============================================
   Tüm renk ve değerlerin merkezi yönetimi için
   Dark/Light mode desteği için hazırlanmış
*/
:root {
    /* Arka Plan Renkleri - Light Mode (Varsayılan) */
    --bg-primary: #f4f7fb;
    --bg-secondary: #e8edf3;
    --bg-gradient-start: #f4f7fb;
    --bg-gradient-end: #e1e8f0;
    
    /* Glass Efekt Renkleri - Light Mode */
    --glass-bg: rgba(255, 255, 255, 0.45);
    --glass-bg-hover: rgba(255, 255, 255, 0.55);
    --glass-border: rgba(255, 255, 255, 0.22);
    --glass-shadow: rgba(0, 0, 0, 0.15);
    
    /* Metin Renkleri - Light Mode */
    --text-primary: #1a1a1a;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --text-inverse: #ffffff;
    
    /* Accent Renkleri */
    --accent-primary: #00c6ff;
    --accent-secondary: #007bff;
    --accent-success: #10b981;
    --accent-danger: #ef4444;
    --accent-warning: #f59e0b;
    
    /* Gölge Değerleri */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 12px 32px rgba(0, 0, 0, 0.25);
    
    /* Blur Değerleri */
    --blur-sm: 8px;
    --blur-md: 12px;
    --blur-lg: 18px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-pill: 12px; /* Badge ve pill şekilli elementler için */
    
    /* Spacing Değerleri */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Layout Değerleri */
    --header-height: 200px; /* Main content için üst boşluk */
    --mobile-nav-height: 80px; /* Mobile navigation için alt boşluk */
    
    /* Accent Renkleri - RGBA Değerleri */
    --accent-primary-rgb: 0, 198, 255;
    --accent-primary-bg: rgba(0, 198, 255, 0.25);
    --accent-primary-border: rgba(0, 198, 255, 0.6);
    --accent-primary-shadow: rgba(0, 198, 255, 0.2);
    
    --accent-danger-rgb: 239, 68, 68;
    --accent-danger-bg: rgba(239, 68, 68, 0.15);
    --accent-danger-border: rgba(239, 68, 68, 0.4);
    --accent-danger-shadow: rgba(239, 68, 68, 0.2);
    
    --accent-success-rgb: 16, 185, 129;
    --accent-success-bg: rgba(16, 185, 129, 0.15);
    --accent-success-border: rgba(16, 185, 129, 0.4);
    --accent-success-shadow: rgba(16, 185, 129, 0.2);
    
    --accent-warning-rgb: 245, 158, 11;
    --accent-warning-bg: rgba(245, 158, 11, 0.15);
    --accent-warning-border: rgba(245, 158, 11, 0.4);
    --accent-warning-shadow: rgba(245, 158, 11, 0.2);
    
    /* Sipariş Et Butonu Renk Yönetimi - Canlı ve Görünür */
    --order-btn-primary-rgb: 0, 198, 255;
    --order-btn-primary: #00c6ff;
    --order-btn-primary-bg: linear-gradient(135deg, rgba(0, 198, 255, 0.9), rgba(0, 150, 255, 0.95));
    --order-btn-primary-bg-solid: rgba(0, 198, 255, 0.9);
    --order-btn-primary-border: rgba(0, 198, 255, 1);
    --order-btn-primary-shadow: 0 4px 20px rgba(0, 198, 255, 0.5);
    --order-btn-primary-glow: 0 0 20px rgba(0, 198, 255, 0.6);
    
    /* Hover Durumu */
    --order-btn-hover-bg: linear-gradient(135deg, rgba(0, 198, 255, 1), rgba(0, 150, 255, 1));
    --order-btn-hover-bg-solid: rgba(0, 198, 255, 1);
    --order-btn-hover-border: rgba(255, 255, 255, 0.8);
    --order-btn-hover-shadow: 0 6px 30px rgba(0, 198, 255, 0.7);
    --order-btn-hover-glow: 0 0 30px rgba(0, 198, 255, 0.8);
    --order-btn-hover-transform: translateY(-2px) scale(1.02);
    
    /* Aktif Durumu */
    --order-btn-active-bg: linear-gradient(135deg, rgba(0, 150, 255, 1), rgba(0, 198, 255, 1));
    --order-btn-active-shadow: 0 2px 15px rgba(0, 198, 255, 0.6);
    --order-btn-active-transform: translateY(0) scale(0.98);
    
    /* Disabled Durumu - Görünür ama pasif */
    --order-btn-disabled-bg: rgba(0, 198, 255, 0.4);
    --order-btn-disabled-border: rgba(0, 198, 255, 0.5);
    --order-btn-disabled-shadow: 0 2px 10px rgba(0, 198, 255, 0.3);
    --order-btn-disabled-opacity: 0.7;
    
    /* Pulse Animasyonu */
    --order-btn-pulse-color: rgba(0, 198, 255, 0.6);
    --order-btn-pulse-duration: 2s;
    
    /* Transition Değerleri */
    --transition-fast: 0.15s ease;
    --transition-base: 0.25s ease;
    --transition-slow: 0.3s ease;
    
    /* Z-index Scale */
    --z-background: 0;
    --z-content: 10;
    --z-sticky: 20;
    --z-modal: 30;
    --z-tooltip: 40;
    
    /* Responsive Breakpoints */
    --breakpoint-mobile: 480px;
    --breakpoint-tablet: 768px;
    --breakpoint-desktop: 1024px;
    
    /* Typography Scale (16px base) */
    --font-size-xs: 0.75rem;    /* 12px */
    --font-size-sm: 0.875rem;   /* 14px */
    --font-size-base: 1rem;     /* 16px */
    --font-size-lg: 1.125rem;   /* 18px */
    --font-size-xl: 1.25rem;    /* 20px */
    --font-size-2xl: 1.5rem;    /* 24px */
    --font-size-3xl: 1.75rem;   /* 28px */
    --font-size-4xl: 2rem;      /* 32px */
}

/* Dark Mode Değişkenleri */
body.dark {
    /* Arka Plan Renkleri - Dark Mode */
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-gradient-start: #0d1117;
    --bg-gradient-end: #161b22;
    
    /* Glass Efekt Renkleri - Dark Mode */
    --glass-bg: rgba(255, 255, 255, 0.15);
    --glass-bg-hover: rgba(255, 255, 255, 0.2);
    --glass-border: rgba(255, 255, 255, 0.22);
    --glass-shadow: rgba(0, 0, 0, 0.3);
    
    /* Metin Renkleri - Dark Mode */
    --text-primary: rgba(255, 255, 255, 0.9);
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    --text-inverse: #1a1a1a;
    
    /* Sipariş Et Butonu - Dark Mode (Daha Parlak ve Görünür) */
    --order-btn-primary-bg: linear-gradient(135deg, rgba(0, 198, 255, 0.95), rgba(0, 150, 255, 1));
    --order-btn-primary-bg-solid: rgba(0, 198, 255, 0.95);
    --order-btn-primary-border: rgba(0, 198, 255, 1);
    --order-btn-primary-shadow: 0 4px 25px rgba(0, 198, 255, 0.6);
    --order-btn-primary-glow: 0 0 25px rgba(0, 198, 255, 0.7);
    
    --order-btn-hover-bg: linear-gradient(135deg, rgba(0, 198, 255, 1), rgba(0, 150, 255, 1));
    --order-btn-hover-bg-solid: rgba(0, 198, 255, 1);
    --order-btn-hover-shadow: 0 6px 35px rgba(0, 198, 255, 0.8);
    --order-btn-hover-glow: 0 0 35px rgba(0, 198, 255, 0.9);
    
    --order-btn-disabled-bg: rgba(0, 198, 255, 0.5);
    --order-btn-disabled-border: rgba(0, 198, 255, 0.6);
    --order-btn-disabled-shadow: 0 2px 15px rgba(0, 198, 255, 0.4);
}

/* ============================================
   RESET & BASE STYLES
   ============================================
*/
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ============================================
   BODY & BACKGROUND
   ============================================
   Gradient arka plan + noise texture efekti
   Modern tarayıcılarda backdrop-filter desteği
*/
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
    /* Smooth scrolling */
    scroll-behavior: smooth;
    /* Text rendering optimizasyonu */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Animasyonlu gradyan arka plan - Canlı renkler */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        135deg,
        #667eea 0%,      /* Mavi */
        #764ba2 15%,     /* Mor */
        #f093fb 30%,     /* Pembe */
        #4facfe 45%,     /* Açık Mavi */
        #00c6ff 60%,     /* Turkuaz */
        #9d50bb 75%,     /* Koyu Mor */
        #f5576c 90%,     /* Kırmızımsı Pembe */
        #667eea 100%     /* Döngü */
    );
    background-size: 400% 400%;
    animation: gradientShift 18s ease infinite;
    z-index: 0;
    transform: translateZ(0);
    will-change: background-position;
}

/* Mobil için arka plan optimizasyonu */
@media (max-width: 767px) {
    body::before {
        /* Mobilde will-change kaldır - performans sorunlarına neden olabilir */
        will-change: auto;
        /* Mobilde animasyonu hafiflet */
        animation: gradientShift 25s ease infinite;
        /* Mobilde position fixed sorunlarını önlemek için */
        position: fixed;
        /* Mobil tarayıcılar için fallback */
        -webkit-transform: translateZ(0);
        -moz-transform: translateZ(0);
        -ms-transform: translateZ(0);
    }
    
    /* Mobilde body'ye fallback background ekle */
    body {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
        background-attachment: fixed;
        min-height: 100vh;
    }
}

/* Ekstra texture efekti */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 60% 70%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
    z-index: 1;
    pointer-events: none;
    transform: translateZ(0);
}

/* Mobil için texture efekti optimizasyonu */
@media (max-width: 767px) {
    body::after {
        /* Mobilde texture efektini hafiflet - performans için */
        background-image: 
            radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
            radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
        /* Mobil tarayıcılar için fallback */
        -webkit-transform: translateZ(0);
        -moz-transform: translateZ(0);
        -ms-transform: translateZ(0);
    }
}

/* ============================================
   TYPOGRAPHY
   ============================================
   WCAG uyumlu kontrast oranları
   Modern, okunabilir tipografi
*/
h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
    /* GPU acceleration için */
    transform: translateZ(0);
}

h1 {
    font-size: 2rem;
    font-weight: 700;
}

h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-secondary);
    text-decoration: none;
}

/* ============================================
   GLASS CONTAINER BASE CLASS
   ============================================
   Tüm glassmorphism kartlar için temel stil
   Backdrop-filter ile modern blur efekti
*/
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-lg));
    -webkit-backdrop-filter: blur(var(--blur-lg));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    /* GPU acceleration */
    transform: translateZ(0);
    will-change: transform, box-shadow;
    transition: all var(--transition-base);
}

/* Glass hover efekti */
.glass:hover {
    background: var(--glass-bg-hover);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px) translateZ(0);
}

/* Glass varyasyonları - farklı boyutlar için */
.glass-sm {
    border-radius: var(--radius-sm);
    backdrop-filter: blur(var(--blur-sm));
    -webkit-backdrop-filter: blur(var(--blur-sm));
}

.glass-md {
    border-radius: var(--radius-md);
    backdrop-filter: blur(var(--blur-md));
    -webkit-backdrop-filter: blur(var(--blur-md));
}

.glass-lg {
    border-radius: var(--radius-xl);
    backdrop-filter: blur(var(--blur-lg));
    -webkit-backdrop-filter: blur(var(--blur-lg));
}

/* Mobile'de blur değerlerini hafiflet (performance) */
@media (max-width: 767px) {
    .glass {
        backdrop-filter: blur(var(--blur-md));
        -webkit-backdrop-filter: blur(var(--blur-md));
    }
    
    .glass-sm {
        backdrop-filter: blur(6px);
        -webkit-backdrop-filter: blur(6px);
    }
}

/* ============================================
   CONTAINER & LAYOUT
   ============================================
*/
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem 1rem 1rem;
    position: relative;
    z-index: 2;
}

/* Override container for products page - full width */
.main-content .container:has(.products-page-container) {
    max-width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
    width: 100% !important;
}

/* Main Content Area */
.main-content {
    min-height: calc(100vh - var(--header-height));
    padding: 0;
    padding-bottom: var(--mobile-nav-height); /* Mobile nav için alan */
    position: relative;
    z-index: 2;
}

/* Desktop için padding ayarı */
@media (min-width: 768px) {
    .main-content {
        padding-bottom: var(--spacing-xl);
    }
}

/* ============================================
   FORMS
   ============================================
   Glassmorphism form elemanları
*/
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* Form input'lar artık .form-input class'ını kullanmalı */
.form-group input:not(.form-input),
.form-group select:not(.form-input),
.form-group textarea:not(.form-input) {
    /* Geriye dönük uyumluluk için - yeni kod .form-input kullanmalı */
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-md));
    -webkit-backdrop-filter: blur(var(--blur-md));
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.form-group input:not(.form-input):focus,
.form-group select:not(.form-input):focus,
.form-group textarea:not(.form-input):focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 198, 255, 0.2), 0 0 8px rgba(0, 198, 255, 0.4);
    background: var(--glass-bg-hover);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: var(--accent-danger);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* ============================================
   ALERTS
   ============================================
   Glassmorphism alert mesajları
*/
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-md));
    -webkit-backdrop-filter: blur(var(--blur-md));
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-sm);
}

.alert-success {
    background: rgba(16, 185, 129, 0.15);
    border-color: rgba(16, 185, 129, 0.4);
    color: var(--accent-success);
}

.alert-error {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.4);
    color: var(--accent-danger);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.15);
    border-color: rgba(245, 158, 11, 0.4);
    color: var(--accent-warning);
}

/* ============================================
   EMPTY STATE
   ============================================
   Boş durum gösterimi için stil
*/
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

/* ============================================
   FOOTER
   ============================================
   Glassmorphism footer tasarımı
*/
.footer {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-lg));
    -webkit-backdrop-filter: blur(var(--blur-lg));
    border-top: 1px solid var(--glass-border);
    color: var(--text-secondary);
    padding: 1.5rem 0;
    text-align: center;
    margin-top: 3rem;
}

/* ============================================
   AUTH PAGES
   ============================================
   Login/Register sayfaları için özel tasarım
   Body arka planını kullanır (::before ve ::after kaldırıldı)
*/
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1rem;
    position: relative;
    overflow: hidden;
}

/* Gradyan animasyonu */
@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* Auth container ve card z-index */
.auth-container {
    position: relative;
    z-index: 2;
}

/* Dark mode için body animasyonlu gradyan - Koyu ama canlı renkler */
body.dark::before {
    background: linear-gradient(
        135deg,
        #1a1a2e 0%,      /* Koyu Mavi */
        #16213e 15%,     /* Koyu Deniz Mavisi */
        #0f3460 30%,     /* Derin Mavi */
        #533483 45%,     /* Koyu Mor */
        #6a4c93 60%,     /* Orta Mor */
        #4a148c 75%,     /* Çok Koyu Mor */
        #1a1a2e 90%,     /* Koyu Mavi */
        #16213e 100%     /* Döngü */
    );
    background-size: 400% 400%;
}

body.dark::after {
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(255, 255, 255, 0.02) 0%, transparent 50%),
        radial-gradient(circle at 60% 70%, rgba(255, 255, 255, 0.03) 0%, transparent 50%);
}

/* Dark mode mobil optimizasyonu */
@media (max-width: 767px) {
    body.dark {
        background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
        background-attachment: fixed;
    }
    
    body.dark::before {
        will-change: auto;
        animation: gradientShift 25s ease infinite;
        -webkit-transform: translateZ(0);
        -moz-transform: translateZ(0);
        -ms-transform: translateZ(0);
    }
    
    body.dark::after {
        background-image: 
            radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.03) 0%, transparent 50%),
            radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.03) 0%, transparent 50%);
        -webkit-transform: translateZ(0);
        -moz-transform: translateZ(0);
        -ms-transform: translateZ(0);
    }
}

/* Auth page body arka planını kullanır */

.auth-container {
    width: 100%;
    max-width: 100%;
    min-height: 100vh;
    padding: 1rem;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.auth-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-lg));
    -webkit-backdrop-filter: blur(var(--blur-lg));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-xl);
    /* GPU acceleration */
    transform: translateZ(0);
    width: 100%;
    max-width: 450px;
    box-sizing: border-box;
}

.auth-card h1 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-primary);
    font-size: var(--font-size-3xl);
    font-weight: 600;
}

.auth-form {
    margin-top: 1.5rem;
    width: 100%;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-inverse);
    opacity: 0.9;
}

.auth-footer a {
    color: var(--accent-primary);
    font-weight: 500;
}

/* ============================================
   MOBIL GLASSMORPHISM LOGIN DESIGN
   ============================================
   Sadece mobil cihazlar için (≤767px)
*/

@media (max-width: 767px) {
    /* Body arka planını kullan */

    /* Floating Background Orbs - Minimal (2 orbs) */
    .auth-bg-orbs {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        overflow: hidden;
        z-index: 0;
        pointer-events: none;
    }

    .auth-orb {
        position: absolute;
        border-radius: 50%;
        filter: blur(60px);
        opacity: 0.4;
        will-change: transform;
        transform: translateZ(0);
        animation: floatOrb 30s ease-in-out infinite;
    }

    .auth-orb--1 {
        width: 250px;
        height: 250px;
        background: linear-gradient(135deg, rgba(0, 122, 255, 0.3) 0%, rgba(88, 86, 214, 0.2) 100%);
        top: 10%;
        left: -5%;
        animation-delay: 0s;
        animation-duration: 35s;
    }

    .auth-orb--2 {
        width: 220px;
        height: 220px;
        background: linear-gradient(135deg, rgba(88, 86, 214, 0.25) 0%, rgba(0, 122, 255, 0.2) 100%);
        bottom: 10%;
        right: -5%;
        animation-delay: -15s;
        animation-duration: 40s;
    }

    @keyframes floatOrb {
        0%, 100% {
            transform: translate(0, 0) scale(1);
        }
        50% {
            transform: translate(20px, -20px) scale(1.05);
        }
    }

    /* Dark mode body arka planını kullanır */

    body.dark .auth-orb--1 {
        background: linear-gradient(135deg, rgba(10, 132, 255, 0.2) 0%, rgba(88, 86, 214, 0.15) 100%);
        opacity: 0.3;
    }

    body.dark .auth-orb--2 {
        background: linear-gradient(135deg, rgba(88, 86, 214, 0.18) 0%, rgba(10, 132, 255, 0.15) 100%);
        opacity: 0.25;
    }

    /* iOS Minimal Glassmorphism Card - Optimized Performance */
    .auth-container {
        z-index: var(--z-content);
        position: relative;
    }

    .auth-card {
        position: relative;
        background: rgba(255, 255, 255, 0.7);
        backdrop-filter: blur(10px) saturate(150%);
        -webkit-backdrop-filter: blur(10px) saturate(150%);
        border: 1px solid rgba(0, 0, 0, 0.1);
        border-radius: 20px;
        padding: 2rem 1.5rem;
        box-shadow: 
            0 4px 16px rgba(0, 0, 0, 0.08),
            0 0 0 0.5px rgba(0, 0, 0, 0.05) inset;
        transform: translateZ(0);
        overflow: hidden;
        max-width: 90%;
        width: 100%;
    }
    
    /* Low-end devices için blur azalt */
    @supports not (backdrop-filter: blur(10px)) {
        .auth-card {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: none;
            -webkit-backdrop-filter: none;
        }
    }
    
    @media (prefers-reduced-motion: reduce) {
        .auth-card,
        .auth-input,
        .auth-submit {
            transition: none !important;
            animation: none !important;
        }
    }

    /* Remove border highlights and inner glow */
    .auth-card::before,
    .auth-card::after {
        display: none;
    }

    /* iOS Minimal Typography */
    .auth-header {
        text-align: center;
        margin-bottom: 2rem;
    }

    .auth-title {
        font-size: 1.75rem;
        font-weight: 600;
        color: rgba(0, 0, 0, 0.9);
        margin: 0 0 0.5rem 0;
        letter-spacing: -0.3px;
    }

    .auth-subtitle {
        font-size: 0.95rem;
        color: rgba(0, 0, 0, 0.6);
        margin: 0;
        font-weight: 400;
    }

    /* Alert styling */
    .auth-alert {
        background: rgba(255, 59, 48, 0.1);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border: 1px solid rgba(255, 59, 48, 0.2);
        border-radius: 12px;
        padding: 1rem;
        margin-bottom: 1.5rem;
        color: rgba(255, 59, 48, 0.9);
    }

    /* Footer link */
    .auth-footer {
        color: rgba(0, 0, 0, 0.6);
    }

    .auth-footer-link {
        color: #007aff;
        font-weight: 500;
        text-decoration: none;
        transition: opacity 0.2s ease;
    }

    .auth-footer-link:hover {
        opacity: 0.7;
    }

    /* Dark mode card */
    body.dark .auth-card {
        background: rgba(28, 28, 30, 0.7);
        border-color: rgba(255, 255, 255, 0.15);
        box-shadow: 
            0 4px 16px rgba(0, 0, 0, 0.3),
            0 0 0 0.5px rgba(255, 255, 255, 0.1) inset;
    }

    body.dark .auth-title {
        color: rgba(255, 255, 255, 0.9);
    }

    body.dark .auth-subtitle {
        color: rgba(255, 255, 255, 0.6);
    }

    body.dark .auth-footer {
        color: rgba(255, 255, 255, 0.6);
    }

    body.dark .auth-footer-link {
        color: #0a84ff;
    }

    /* Performance Optimizations */
    .auth-page,
    .auth-bg-orbs,
    .auth-orb,
    .auth-card,
    .auth-input-mobile,
    .auth-submit-mobile {
        transform: translateZ(0);
        -webkit-transform: translateZ(0);
        -moz-transform: translateZ(0);
        -ms-transform: translateZ(0);
        backface-visibility: hidden;
        -webkit-backface-visibility: hidden;
        perspective: 1000px;
        -webkit-perspective: 1000px;
    }

    /* Optimize animations for low-end devices */
    @media (prefers-reduced-motion: reduce) {
        .auth-orb,
        .auth-card {
            animation: none !important;
        }
        
        .auth-input-mobile,
        .auth-submit-mobile {
            transition: none !important;
        }
    }

    /* Reduce blur on low-end devices */
    @media (max-width: 480px) {
        .auth-card {
            backdrop-filter: blur(8px) saturate(130%);
            -webkit-backdrop-filter: blur(8px) saturate(130%);
        }

        .auth-input-mobile {
            backdrop-filter: blur(6px) saturate(130%) !important;
            -webkit-backdrop-filter: blur(6px) saturate(130%) !important;
        }

        .auth-orb {
            filter: blur(50px);
        }
    }

    /* Will-change optimization - only when needed */
    .auth-card:hover {
        will-change: transform;
    }

    .auth-input-mobile:focus {
        will-change: transform, box-shadow;
    }

    .auth-submit-mobile:hover {
        will-change: transform, box-shadow;
    }
}

/* ============================================
   AUTH SLIDE CONTAINER
   ============================================
   Slide animasyonu için container
*/
.auth-slide-container {
    position: relative;
    width: 1000px;
    max-width: 100%;
    height: 680px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(var(--blur-lg));
    -webkit-backdrop-filter: blur(var(--blur-lg));
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 30px;
    margin: 0 auto;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.2), 0 0 60px rgba(var(--accent-primary-rgb), 0.1);
    overflow: hidden;
    box-sizing: border-box;
}

.form-box {
    position: absolute;
    height: 100%;
    width: 50%;
    background: transparent;
    right: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-inverse);
    text-align: center;
    padding: 2.5rem;
    z-index: var(--z-content);
    transition: right 0.5s ease-in-out 1s, left 0.5s ease-in-out 1s, visibility 0s 1s;
    box-sizing: border-box;
}

.form-box.register {
    left: 0;
    right: auto;
    visibility: hidden;
    transition: left 0.5s ease-in-out 1s, right 0.5s ease-in-out 1s, visibility 0s 1s;
}

.auth-slide-container.active .form-box.login {
    right: 50%;
    visibility: hidden;
}

.auth-slide-container.active .form-box.register {
    left: 0;
    right: auto;
    visibility: visible;
}

.form-box .auth-card {
    width: 100%;
    max-width: 100%;
    padding: 2rem;
    box-shadow: none;
    background: transparent;
    border: none;
}

.form-box .auth-form {
    width: 100%;
    margin-top: 0;
}

.form-box h1 {
    font-size: var(--font-size-4xl);
    margin: -0.625rem 0 1.25rem 0;
    color: var(--text-inverse);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    font-weight: 600;
}

/* Toggle Box - Sadece desktop'ta görünür */
.toggle-box {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: var(--z-sticky);
    pointer-events: none;
    display: block;
}

/* Auth tabs - Sadece mobilde görünür */
.auth-tabs {
    display: none;
}

/* ============================================
   MOBIL AUTH SLIDE CONTAINER
   ============================================
   Mobil için dikey slider layout
   Mavi alan üstte, scroll ile yukarı kayar
*/
@media (max-width: 767px) {
    .auth-slide-container {
        position: relative;
        width: 100%;
        max-width: 100%;
        height: 100vh;
        min-height: 100vh;
        background: transparent;
        border: none;
        border-radius: 0;
        margin: 0;
        box-shadow: none;
        overflow-y: auto;
        overflow-x: hidden;
        display: flex;
        flex-direction: column;
        box-sizing: border-box;
    }

    /* Mavi Toggle Box - Mobilde gizle */
    .toggle-box {
        display: none;
    }

    .toggle-box::before {
        display: none;
    }

    /* Toggle Panel - Mobilde gizle */
    .toggle-panel {
        display: none;
    }

    .toggle-panel h1 {
        font-size: var(--font-size-2xl);
        margin-bottom: 0.75rem;
        color: var(--text-inverse);
        text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
        text-align: center;
        line-height: 1.3;
        font-weight: 600;
    }

    .toggle-panel p {
        font-size: var(--font-size-sm);
        margin-bottom: 1rem;
        opacity: 0.95;
        text-align: center;
        line-height: 1.4;
    }

    /* Toggle Butonlar - Yatay, Kompakt, 44px minimum touch target */
    .auth-toggle-btn {
        width: auto;
        min-width: 140px;
        min-height: 44px;
        height: 44px;
        background: rgba(255, 255, 255, 0.2);
        border: 2px solid var(--text-inverse);
        color: var(--text-inverse);
        border-radius: var(--radius-md);
        font-size: var(--font-size-sm);
        font-weight: 600;
        cursor: pointer;
        transition: all var(--transition-base);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        pointer-events: auto;
        padding: 0 1.5rem;
        white-space: nowrap;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .auth-toggle-btn:hover {
        background: rgba(255, 255, 255, 0.3);
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    }

    .auth-toggle-btn:active {
        transform: translateY(0);
        box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
    }

    /* Form Box - Mobilde Statik, Tam Genişlik */
    .form-box {
        position: static;
        width: 100%;
        height: auto;
        min-height: auto;
        background: transparent;
        padding: 2rem 1.5rem;
        display: flex;
        align-items: flex-start;
        justify-content: center;
        transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
        visibility: visible;
        opacity: 1;
        transform: translateY(0);
    }

    .form-box.login {
        right: auto;
        left: auto;
    }

    .form-box.register {
        left: auto;
        right: auto;
        visibility: visible;
    }

    .auth-slide-container.active .form-box.login {
        right: auto;
        visibility: visible;
    }

    .auth-slide-container.active .form-box.register {
        left: auto;
        visibility: visible;
    }

    .form-box .auth-card {
        width: 100%;
        max-width: 100%;
        padding: 0;
        background: transparent;
        border: none;
        box-shadow: none;
    }

    .form-box h1 {
        font-size: var(--font-size-3xl);
        margin: 0 0 1.5rem 0;
        color: var(--text-primary);
        text-shadow: none;
        text-align: center;
        font-weight: 600;
    }

    /* Auth Tabs - Mobilde Görünür, Toggle Box içinde */
    .auth-tabs {
        display: flex;
        width: 100%;
        background: rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
        padding: 0;
        margin: 0;
        z-index: calc(var(--z-content) + 1);
        position: relative;
    }

    .auth-tab {
        flex: 1;
        min-height: 44px;
        padding: 0.875rem 1rem;
        background: transparent;
        border: none;
        color: rgba(255, 255, 255, 0.7);
        font-size: var(--font-size-base);
        font-weight: 500;
        cursor: pointer;
        transition: all var(--transition-base);
        border-bottom: 3px solid transparent;
        text-align: center;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .auth-tab.active {
        color: var(--text-inverse);
        border-bottom-color: var(--text-inverse);
        background: rgba(255, 255, 255, 0.1);
        font-weight: 600;
    }

    .auth-tab:hover {
        color: var(--text-inverse);
        background: rgba(255, 255, 255, 0.15);
    }

    /* Form Input'lar - Mobilde Kompakt, iOS Minimal Style */
    .form-box .auth-input-box {
        margin: 1.25rem 0;
    }

    .form-box .auth-input {
        padding: 1rem 3rem 1rem 1rem;
        font-size: var(--font-size-base);
        border: 1px solid rgba(0, 0, 0, 0.1);
        border-radius: 12px;
        background: rgba(255, 255, 255, 0.5);
        backdrop-filter: blur(8px) saturate(150%);
        -webkit-backdrop-filter: blur(8px) saturate(150%);
        color: rgba(0, 0, 0, 0.9);
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    }

    .form-box .auth-input:focus {
        border-color: #007aff;
        background: rgba(255, 255, 255, 0.7);
        box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
    }

    .form-box .auth-submit {
        margin-top: 1.5rem;
        min-height: 44px;
        padding: 1rem 2rem;
        font-size: var(--font-size-base);
        font-weight: 600;
        background: #007aff;
        color: rgba(255, 255, 255, 1);
        border: none;
        border-radius: 14px;
        box-shadow: 0 2px 8px rgba(0, 122, 255, 0.3);
        text-transform: none;
        letter-spacing: 0.3px;
    }

    .form-box .auth-submit:hover {
        background: #0051d5;
        box-shadow: 0 4px 12px rgba(0, 122, 255, 0.4);
    }

    .form-box .auth-submit:active {
        background: #0040a8;
        transform: scale(0.98);
    }

    /* Multi-step form stilleri genel CSS'de tanımlı */
}

/* ============================================
   MULTI-STEP FORM (Genel - Desktop & Mobile)
   ============================================
   Form adımları arası geçiş için genel stiller
*/
.multi-step-form {
    position: relative;
}

.multi-step-form .form-step {
    display: none !important;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
}

.multi-step-form .form-step.active {
    display: block !important;
    opacity: 1;
    transform: translateY(0);
}

.multi-step-form .form-step textarea.auth-input {
    min-height: 80px;
    resize: vertical;
    padding: 12px 15px;
}

/* ============================================
   FORM BOX VİSİBİLİTY (Desktop & Mobile)
   ============================================
   Login ve register form'larının görünürlüğü
*/
.form-box {
    display: none;
}

.form-box.active {
    display: flex !important;
}

/* Desktop'ta slide animasyonu için */
@media (min-width: 768px) {
    .form-box {
        display: flex;
    }
}

.toggle-box::before {
    content: "";
    position: absolute;
    width: 300%;
    height: 100%;
    left: -250%;
    border-radius: 100px;
    background: linear-gradient(135deg, var(--accent-primary), rgba(var(--accent-primary-rgb), 0.9), var(--accent-primary));
    z-index: 2;
    transition: 1.4s ease-in-out;
    box-shadow: 0 0 30px rgba(var(--accent-primary-rgb), 0.3);
    pointer-events: none;
}

.auth-slide-container.active .toggle-box::before {
    left: 50%;
}

.toggle-panel {
    position: absolute;
    width: 50%;
    height: 100%;
    color: var(--text-inverse);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: calc(var(--z-content) + 1);
    transition: 0.5s ease-in-out;
    padding: 2rem;
    box-sizing: border-box;
    pointer-events: auto;
}

.toggle-panel h1 {
    font-size: var(--font-size-4xl);
    margin-bottom: 1rem;
    color: var(--text-inverse);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    font-weight: 600;
}

.toggle-panel p {
    font-size: var(--font-size-sm);
    margin-bottom: 1.25rem;
    opacity: 0.9;
}

.toggle-panel.toggle-left {
    left: 0;
    transition-delay: 1s;
}

.auth-slide-container.active .toggle-panel.toggle-left {
    left: -50%;
    transition-delay: 0.5s;
}

.toggle-panel.toggle-right {
    right: -50%;
    transition-delay: 0.5s;
}

.auth-slide-container.active .toggle-panel.toggle-right {
    right: 0;
    transition-delay: 1s;
}

.auth-toggle-btn {
    width: 10rem;
    min-height: 44px;
    height: 2.875rem;
    background: transparent;
    border: 2px solid var(--text-inverse);
    color: var(--text-inverse);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: none;
    pointer-events: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.auth-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* Alert mesajları için renk uyumu - auth sayfası, yüksek kontrast */
.auth-page .alert {
    padding: 1rem 1.5rem !important;
    border-radius: var(--radius-md) !important;
    margin-bottom: 1rem !important;
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(8px) !important;
    -webkit-backdrop-filter: blur(8px) !important;
    border: 2px solid rgba(0, 0, 0, 0.1) !important;
    color: var(--text-primary) !important;
    font-size: var(--font-size-sm) !important;
    line-height: 1.5 !important;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15) !important;
}

.auth-page .alert a {
    color: #007aff !important;
    text-decoration: underline !important;
    font-weight: 500 !important;
}

.auth-page .alert-error {
    background: rgba(255, 59, 48, 0.95) !important;
    border-color: rgba(255, 59, 48, 0.8) !important;
    color: #ffffff !important;
    box-shadow: 0 2px 12px rgba(255, 59, 48, 0.4) !important;
}

.auth-page .alert-error a {
    color: #ffffff !important;
    text-decoration: underline !important;
    opacity: 0.95 !important;
}

.auth-page .alert-success {
    background: rgba(52, 199, 89, 0.95) !important;
    border-color: rgba(52, 199, 89, 0.8) !important;
    color: #ffffff !important;
    box-shadow: 0 2px 12px rgba(52, 199, 89, 0.4) !important;
}

.auth-page .alert-success a {
    color: #ffffff !important;
    text-decoration: underline !important;
    opacity: 0.95 !important;
}

/* ============================================
   RESPONSIVE BREAKPOINTS
   ============================================
   Mobile-first yaklaşım
*/

@media screen and (max-width: 480px) {
    .form-box {
        padding: 1rem;
    }
    
    .toggle-panel h1 {
        font-size: var(--font-size-xl);
    }
    
    .form-box h1 {
        font-size: var(--font-size-2xl);
    }
    
    .auth-card {
        padding: 1.5rem 1.25rem;
    }
    
    .auth-input-box {
        margin: 1rem 0;
    }
    
    .auth-submit {
        padding: 0.875rem 1.5rem !important;
        font-size: var(--font-size-sm) !important;
    }
    
    .container {
        padding: 0 0.75rem 0.75rem 0.75rem;
    }
    
    .main-content {
        padding: 0;
        padding-bottom: calc(var(--mobile-nav-height) + 0.5rem);
        padding-top: 0;
    }
    
    h1 {
        font-size: var(--font-size-2xl);
        margin-bottom: 0.75rem;
    }
    
    h2 {
        font-size: var(--font-size-xl);
        margin-bottom: 0.75rem;
    }
    
    h3 {
        font-size: var(--font-size-lg);
        margin-bottom: 0.5rem;
    }
    
    p {
        font-size: var(--font-size-sm);
        margin-bottom: 0.75rem;
    }
    
    .form-group {
        margin-bottom: 1rem;
    }
    
    .form-group label {
        font-size: var(--font-size-sm);
        margin-bottom: 0.375rem;
    }
    
    .alert {
        padding: 0.75rem 1rem;
        margin-bottom: 0.75rem;
        font-size: var(--font-size-sm);
    }
    
    .empty-state {
        padding: 2rem 1rem;
        font-size: var(--font-size-sm);
    }
    
    /* Genel spacing azaltmaları */
    .mb-1 { margin-bottom: 0.375rem; }
    .mb-2 { margin-bottom: 0.75rem; }
    .mb-3 { margin-bottom: 1rem; }
    .mb-4 { margin-bottom: 1.5rem; }
    
    .mt-1 { margin-top: 0.375rem; }
    .mt-2 { margin-top: 0.75rem; }
    .mt-3 { margin-top: 1rem; }
    .mt-4 { margin-top: 1.5rem; }
    
    .p-1 { padding: 0.375rem; }
    .p-2 { padding: 0.75rem; }
    .p-3 { padding: 1rem; }
    .p-4 { padding: 1.5rem; }
    
    /* Horizontal overflow kontrolü */
    body {
        overflow-x: hidden;
    }
    
    * {
        max-width: 100%;
        word-wrap: break-word;
    }
    
    img {
        max-width: 100%;
        height: auto;
    }
}

@media (min-width: 768px) {
    .container {
        padding: 2rem;
    }
    
    h1 {
        font-size: var(--font-size-4xl);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 3rem 2rem 3rem;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================
   Yardımcı sınıflar - hızlı layout ve stil için
   Modüler, reusable utility sınıfları
*/

/* Flexbox Utilities */
.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.flex-start {
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.flex-end {
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.flex-column {
    display: flex;
    flex-direction: column;
}

/* Grid Utilities */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

/* Responsive Grid - Mobile'de tek sütun */
@media (max-width: 767px) {
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* Visibility Utilities */
.hidden-mobile {
    display: block;
}

@media (max-width: 767px) {
    .hidden-mobile {
        display: none !important;
    }
}

.hidden-desktop {
    display: none;
}

@media (min-width: 768px) {
    .hidden-desktop {
        display: none !important;
    }
}

/* Shadow Utilities */
.shadow-sm {
    box-shadow: var(--shadow-sm);
}

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

.shadow-lg {
    box-shadow: var(--shadow-lg);
}

.shadow-xl {
    box-shadow: var(--shadow-xl);
}

/* Text Utilities */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.text-primary {
    color: var(--text-primary);
}

.text-secondary {
    color: var(--text-secondary);
}

.text-muted {
    color: var(--text-muted);
}

.text-accent {
    color: var(--accent-primary);
}

.text-success {
    color: var(--accent-success);
}

.text-danger {
    color: var(--accent-danger);
}

.text-warning {
    color: var(--accent-warning);
}

/* Spacing Utilities */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }