/* ==================================== */
/* MODERN 2025-2026 TASARIM - PREMIUM & DİKKAT ÇEKİCİ */
/* ==================================== */

/* 1. MODERN 2025-2026 RENK PALETİ - KIRMIZI TEMA
-------------------------------------- */
:root {
    /* Kırmızı Tema Renkler - 2025-2026 Modern */
    --primary-color: #DC2626;      /* Vibrant Red */
    --primary-color-dark: #B91C1C;
    --primary-color-light: #EF4444;
    --primary-color-lighter: #FEE2E2;
    --secondary-color: #1F2937;    /* Dark Gray */
    --secondary-color-light: #4B5563;
    --accent-color: #F59E0B;       /* Amber */
    --accent-color-2: #EC4899;     /* Pink */
    --accent-color-3: #8B5CF6;     /* Purple */
    --accent-color-4: #10B981;     /* Emerald */
    --accent-color-5: #F97316;     /* Orange */
    
    /* Modern Kırmızı Gradient'ler - 2025-2026 Style */
    --gradient-primary: linear-gradient(135deg, #DC2626 0%, #EF4444 100%);
    --gradient-secondary: linear-gradient(135deg, #B91C1C 0%, #DC2626 100%);
    --gradient-warm: linear-gradient(135deg, #DC2626 0%, #F97316 50%, #DC2626 100%);
    --gradient-cool: linear-gradient(135deg, #EC4899 0%, #DC2626 100%);
    --gradient-premium: linear-gradient(135deg, #DC2626 0%, #8B5CF6 100%);
    --gradient-sunset: linear-gradient(135deg, #F97316 0%, #DC2626 100%);
    --gradient-soft: linear-gradient(135deg, #FEE2E2 0%, #FEF2F2 100%);
    
    /* Modern Arka Planlar - Kırmızı Tema */
    --bg-color: #FEFEFE;
    --bg-gradient: linear-gradient(135deg, #FFF5F5 0%, #FEF2F2 50%, #FEE2E2 100%);
    --bg-gradient-animated: linear-gradient(-45deg, #FFF5F5, #FEF2F2, #FEE2E2, #FFF5F5);
    --bg-secondary: linear-gradient(135deg, #FEE2E2 0%, #FCD5CE 50%, #FEE2E2 100%);
    --bg-accent: linear-gradient(135deg, #FEF2F2 0%, #FEE2E2 100%);
    --card-bg: rgba(255, 255, 255, 0.95);
    --card-bg-hover: rgba(254, 242, 242, 0.98);
    --card-bg-accent: linear-gradient(135deg, rgba(254, 226, 226, 0.6) 0%, rgba(254, 242, 242, 0.8) 100%);
    --glass-bg: rgba(255, 255, 255, 0.3);
    --glass-border: rgba(220, 38, 38, 0.2);
    --border-color: rgba(254, 226, 226, 0.8);
    --footer-bg: linear-gradient(135deg, #1F2937 0%, #111827 100%);
    --text-color: #1F2937;
    --text-color-light: #6B7280;
    --text-color-lighter: #9CA3AF;
    
    /* Modern Typography - 2025-2026 */
    --font-family-heading: 'Poppins', 'Inter', 'Segoe UI', system-ui, sans-serif;
    --font-family-body: 'Inter', 'Roboto', 'Segoe UI', system-ui, sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --font-weight-black: 900;

    /* Modern Shadows - Kırmızı Tema */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.15);
    --shadow-primary: 0 8px 30px rgba(220, 38, 38, 0.25);
    --shadow-glow: 0 0 40px rgba(220, 38, 38, 0.4);
    --shadow-glow-soft: 0 0 60px rgba(220, 38, 38, 0.2);
    --card-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    --card-shadow-hover: 0 20px 60px rgba(220, 38, 38, 0.2);
    
    /* Border Radius - Modern & Smooth */
    --border-radius: 24px;
    --border-radius-small: 12px;
    --border-radius-medium: 16px;
    --border-radius-large: 32px;
    --border-radius-full: 9999px;
    
    /* Modern Animations - 2025-2026 Performance Optimized */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 400ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-ease-out: 350ms cubic-bezier(0.16, 1, 0.3, 1);
    --transition-ease-in-out: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Backdrop Blur - Glassmorphism */
    --blur-sm: blur(4px);
    --blur-md: blur(8px);
    --blur-lg: blur(16px);
    --blur-xl: blur(24px);

    /* Theming helpers */
    --header-link-color: #1F2937;
    --header-link-hover-bg: rgba(220, 38, 38, 0.05);
    --mobile-toggle-bg: rgba(31, 41, 55, 0.08);
    --mobile-toggle-border: rgba(31, 41, 55, 0.25);
    --mobile-toggle-bar: #1F2937;
    --mobile-nav-bg: linear-gradient(135deg, rgba(220, 38, 38, 0.98) 0%, rgba(239, 68, 68, 0.98) 100%);
}

:root[data-theme="dark"] {
    --bg-color: #0B1220;
    --bg-gradient: linear-gradient(135deg, #0F172A 0%, #0B1220 50%, #0F172A 100%);
    --bg-secondary: linear-gradient(135deg, #0F172A 0%, #111827 50%, #0B1220 100%);
    --bg-accent: linear-gradient(135deg, #0F172A 0%, #111827 100%);
    --card-bg: rgba(15, 23, 42, 0.92);
    --card-bg-hover: rgba(30, 41, 59, 0.94);
    --card-bg-accent: linear-gradient(135deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 0.85) 100%);
    --glass-bg: rgba(255, 255, 255, 0.04);
    --glass-border: rgba(148, 163, 184, 0.2);
    --border-color: rgba(148, 163, 184, 0.28);
    --footer-bg: linear-gradient(135deg, #0B1220 0%, #0F172A 100%);
    --secondary-color: #E5E7EB;
    --secondary-color-light: #CBD5E1;
    --text-color: #F8FAFC;
    --text-color-light: #E2E8F0;
    --text-color-lighter: #CBD5E1;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2), 0 1px 2px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.25), 0 2px 6px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.32), 0 4px 10px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 35px rgba(0, 0, 0, 0.35), 0 10px 16px rgba(0, 0, 0, 0.25);
    --shadow-2xl: 0 25px 60px rgba(0, 0, 0, 0.45);
    --shadow-primary: 0 8px 30px rgba(239, 68, 68, 0.35);
    --shadow-glow: 0 0 40px rgba(239, 68, 68, 0.55);
    --shadow-glow-soft: 0 0 60px rgba(239, 68, 68, 0.3);
    --card-shadow: 0 10px 40px rgba(0, 0, 0, 0.22);
    --card-shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.35);
    --header-link-color: #E2E8F0;
    --header-link-hover-bg: rgba(226, 232, 240, 0.08);
    --mobile-toggle-bg: rgba(255, 255, 255, 0.08);
    --mobile-toggle-border: rgba(255, 255, 255, 0.18);
    --mobile-toggle-bar: #E2E8F0;
    --mobile-nav-bg: linear-gradient(135deg, rgba(17, 24, 39, 0.95) 0%, rgba(15, 23, 42, 0.95) 100%);
}

:root[data-theme="dark"] body {
    background: var(--bg-gradient);
    color: var(--text-color);
}

/* 2. GLOBAL RESET & SMOOTH SCROLLING
-------------------------------------- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-family-body);
    background: var(--bg-gradient);
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background var(--transition-slow), color var(--transition-slow), background-color var(--transition-slow);
    font-weight: var(--font-weight-normal);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
    /* Modern scroll behavior */
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

/* Global daha canlı ama sade görünüm */
body {
    background-size: 220% 220%;
    animation: appBackgroundFlow 22s ease-in-out infinite;
}

@keyframes appBackgroundFlow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}



body::after {
    display: none;
    }


/* 3. MODERN TİPOGRAFİ
-------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

h1 { 
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: var(--font-weight-black);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
    background-size: 200% 200%;
    display: inline-block;
    }

h1:hover {
    background-position: 100% 0;
    transition: background-position 0.8s ease;
}


h2 { 
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-weight-extrabold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h3 { 
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: var(--font-weight-bold);
    color: var(--secondary-color);
}


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

:root[data-theme="dark"] p {
    color: var(--text-color);
}


a {
    color: var(--primary-color);
    text-decoration: none;
    position: relative;
    display: inline-block;
}

a::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s;
}

a:hover::after {
    width: 100%;
    animation: linkUnderline 0.3s ease;
}

.card,
.checkout-card,
.restaurant-card {
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.card:hover,
.checkout-card:hover,
.restaurant-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--card-shadow-hover);
}

.btn {
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), filter var(--transition-fast);
}

.btn:hover {
    transform: translateY(-1px);
    filter: saturate(1.05);
}

/* İndirim etiketleri için akışkan vurgu */
.promo-badge,
.seller-tag,
.discount-badge {
    position: relative;
    overflow: hidden;
}

.promo-badge::before,
.seller-tag::before,
.discount-badge::before {
    content: "";
    position: absolute;
    top: 0;
    left: -120%;
    width: 120%;
    height: 100%;
    background: linear-gradient(110deg, transparent 0%, rgba(255,255,255,0.4) 50%, transparent 100%);
    animation: badgeShine 3.8s linear infinite;
}

@keyframes badgeShine {
    0% { left: -120%; }
    100% { left: 130%; }
}

@media (prefers-reduced-motion: reduce) {
    body { animation: none !important; }
    .promo-badge::before,
    .seller-tag::before,
    .discount-badge::before { animation: none !important; }
    .card:hover,
    .checkout-card:hover,
    .restaurant-card:hover,
    .btn:hover { transform: none !important; }
}

@keyframes linkUnderline {
    0% {
        transform: scaleX(0);
    }
    50% {
        transform: scaleX(1.2);
    }
    100% {
        transform: scaleX(1);
    }
}

/* 4. MODERN SCROLLBAR - Sade
-------------------------------------- */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
    border-radius: var(--border-radius-full);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: var(--border-radius-full);
    border: 2px solid var(--bg-color);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color-dark);
}

/* 5. SELECTION STYLES
-------------------------------------- */
::selection {
    background: var(--primary-color);
    color: white;
}

::-moz-selection {
    background: var(--primary-color);
    color: white;
}

/* 6. RESPONSIVE BASE
-------------------------------------- */
@media (max-width: 768px) {
    :root {
        --border-radius: 16px;
        --border-radius-small: 10px;
        --border-radius-large: 24px;
    }
    
    body {
        background-size: 300% 300%;
    }
    
    body::before,
    body::after {
        opacity: 0.5;
    }
}

@media (max-width: 480px) {
    :root {
        --border-radius: 12px;
        --border-radius-small: 8px;
        --border-radius-large: 20px;
    }
}