html {
    overflow-x: hidden;
    background-color: #050505;
}

body {
    overflow-x: hidden;
}

/* Özel Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #050505; }
body.light ::-webkit-scrollbar-track { background: #f8f9fa; }
::-webkit-scrollbar-thumb { background: #1a1a1a; border-radius: 4px; }
body.light ::-webkit-scrollbar-thumb { background: #e9ecef; }
::-webkit-scrollbar-thumb:hover { background: #d4af37; }

body:has(#menu-toggle:checked) {
    overflow: hidden !important;
    height: 100vh !important;
}

/* 3D ve Kart Hover Mekanizmaları */
.style-3d { transform-style: preserve-3d; perspective: 1000px; }
.reveal-text { opacity: 1; transform: none; }

.animated-card, .pricing-card {
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.animated-card:hover { 
    transform: translateY(-5px); 
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6); 
}
.pricing-card:hover { 
    transform: translateY(-8px) scale(1.01); 
    border-color: rgba(212, 175, 55, 0.5); 
}

/* FÜTÜRİSTİK CLIP-PATH TEMA GEÇİŞ PERDESİ */
#theme-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: #f8f9fa; /* Light mod rengi */
    z-index: 999;
    pointer-events: none;
    clip-path: circle(0% at 0% 0%); /* Geçiş başlangıç noktası */
    transition: clip-path 0.8s cubic-bezier(0.77, 0, 0.175, 1);
}
html.dark #theme-overlay {
    background-color: #050505; /* Dark mod rengi */
}

/* PREMIUM INSTAGRAM GLOW BUTONU */
.instagram-glow-btn:hover {
    border-color: #ff1a1a;
    box-shadow: 0 0 20px rgba(255, 26, 26, 0.4), 0 0 40px rgba(214, 175, 55, 0.2);
    transform: translateY(-3px);
}
.instagram-glow-btn:hover .glow-layer {
    opacity: 1;
}
.instagram-glow-btn:hover svg {
    transform: scale(1.1);
    color: #ffffff !important;
}

/* HUD SWITCHER ANİMASYONU */
html.dark .hud-dot {
    left: calc(100% - 18px);
    background-color: #d4af37;
}
html.light .hud-dot {
    left: 2px;
    background-color: #990000; /* Iron Man kırmızı detayı */
}

/* Saf CSS Preloader Tetikleyicileri */
#preloader { animation: fadeOutPreloader 0.5s ease 2.2s forwards; }
#preloader-text { animation: textReveal 1s cubic-bezier(0.77, 0, 0.175, 1) 0.4s forwards; }
#preloader-bar { animation: loaderProgress 1.5s cubic-bezier(0.77, 0, 0.175, 1) 0.2s forwards; }

@keyframes textReveal { 0% { transform: translateY(100%); opacity: 0; } 100% { transform: translateY(0); opacity: 1; } }
@keyframes loaderProgress { 0% { width: 0; } 100% { width: 100%; } }
@keyframes fadeOutPreloader { 0% { opacity: 1; visibility: visible; } 100% { opacity: 0; visibility: hidden; } }

/* Erişilebilirlik - Skip Link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 1rem;
    z-index: 10000;
    padding: 0.75rem 1.5rem;
    background: #d4af37;
    color: #050505;
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: 0.5rem;
    transition: top 0.3s;
}
.skip-link:focus {
    top: 1rem;
    outline: 2px solid #fff;
    outline-offset: 2px;
}

/* Nav scroll state */
nav.nav-scrolled {
    background: rgba(5, 5, 5, 0.95) !important;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}
body.light nav.nav-scrolled {
    background: rgba(248, 249, 250, 0.95) !important;
}

/* Footer premium */
.footer-premium .footer-link {
    position: relative;
    display: inline-block;
}
.footer-premium .footer-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: #d4af37;
    transition: width 0.3s ease;
}
.footer-premium .footer-link:hover::after {
    width: 100%;
}

/* Instagram glow - enhanced */
.instagram-glow-btn {
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, border-color 0.3s ease;
}
.instagram-glow-btn::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    background: conic-gradient(from 0deg, #d4af37, #ff1a1a, #833ab4, #fd1d1d, #d4af37);
    opacity: 0;
    z-index: 0;
    transition: opacity 0.5s ease;
    animation: instagram-rotate 3s linear infinite;
    animation-play-state: paused;
}
.instagram-glow-btn:hover::before {
    opacity: 0.6;
    animation-play-state: running;
}
@keyframes instagram-rotate {
    to { transform: rotate(360deg); }
}

/* Magnetic button base */
.magnetic-btn {
    will-change: transform;
}

/* Focus visible for accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
    outline: 2px solid #d4af37;
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    #preloader { display: none !important; }
}

/* Performance - content visibility */
section {
    content-visibility: auto;
    contain-intrinsic-size: auto 500px;
}