:root {
    --logo-size: clamp(5.5rem, 18vmin, 12.5rem);
    --logo-ust-top: calc(clamp(2.25rem, 10vh, 7rem) + env(safe-area-inset-top, 0px));
    --logo-intro-kayma: 42vh;
    --saturn-x: calc(var(--logo-size) * 0.45);
    --anim-duration: 1.55s;
    --anim-duration-desktop: 3.1s;
    --logo-opacity: 0.66;
    --logo-acilis-peak-opak: 0.82;
    --logo-acilis-yol-opak: 0.58;
    --logo-acilis-son-opak: 0.64;
    --logo-acilis-peak-olcek: 1.46;
    --logo-golge: drop-shadow(0 6px 20px rgba(0, 0, 0, 0.38));
}

@media (min-width: 769px) {
    :root {
        --logo-size: clamp(6.25rem, 20vmin, 14rem);
    }
}

#giris-arkaplan {
    position: fixed;
    inset: 0;
    background: #000;
    z-index: 9998;
    opacity: 1;
    visibility: visible;
    pointer-events: none;
    transition: opacity 1s ease, visibility 0s linear 1s;
}

#logo-kapsayici {
    position: fixed;
    top: var(--logo-ust-top);
    left: 50%;
    width: var(--logo-size);
    max-width: var(--logo-size);
    height: auto;
    background: transparent;
    transform: translate3d(-50%, -50%, 0) translate3d(0, var(--logo-intro-kayma), 0) scale(0.94);
    opacity: 0;
    visibility: hidden;
    z-index: 10000;
    pointer-events: none;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    overflow: visible;
}

#logo-kapsayici.logo-intro-baslat,
#logo-kapsayici.logo-intro-koseye {
    visibility: visible !important;
    opacity: 1 !important;
}

#logo-kapsayici.logo-intro-baslat {
    will-change: transform, opacity;
    animation: logoAkis var(--anim-duration) cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

#logo-kapsayici.logo-intro-tamam {
    transform: translate3d(-50%, -50%, 0) scale(1) !important;
    opacity: var(--logo-opacity) !important;
    visibility: visible !important;
    will-change: auto;
    animation: none;
}

@media screen and (min-width: 769px) {
    #logo-kapsayici {
        --anim-duration: var(--anim-duration-desktop);
    }

    #logo-kapsayici.logo-intro-baslat {
        top: 50%;
        left: 50%;
        animation: logoBuyume 1.15s cubic-bezier(0.22, 0.88, 0.32, 1) forwards !important;
        will-change: transform;
    }

    #logo-kapsayici.logo-intro-baslat #hareketli-logo {
        animation: logoNetlikBuyume 1.15s cubic-bezier(0.22, 0.88, 0.32, 1) forwards;
        filter: none;
    }

    #logo-kapsayici.logo-intro-koseye {
        transform-origin: top left;
        will-change: transform;
    }

    #logo-kapsayici.logo-intro-koseye #hareketli-logo {
        animation: logoNetlikKoseye 1.5s cubic-bezier(0.28, 0.02, 0.14, 1) forwards;
        filter: none;
    }

    #logo-kapsayici.logo-intro-tamam {
        transition: none;
    }

    body.marka-sol-aktif #logo-kapsayici.logo-intro-tamam {
        left: var(--marka-sol-logo-sol) !important;
        top: var(--marka-sol-logo-ust) !important;
        transform: translate3d(0, var(--marka-sol-logo-yukari-ofset, 0), 0) scale(var(--marka-sol-logo-olcek)) !important;
        transform-origin: top left !important;
        opacity: 1 !important;
    }

    body.marka-sol-aktif #logo-kapsayici.logo-intro-tamam #hareketli-logo {
        opacity: var(--logo-acilis-son-opak);
        filter: var(--logo-golge);
    }

    body:not(.marka-sol-aktif) #logo-kapsayici.logo-intro-tamam {
        left: 50%;
        top: var(--logo-ust-top);
        transform: translate3d(-50%, -50%, 0) scale(1) !important;
        opacity: var(--logo-opacity) !important;
    }
}

@keyframes logoBuyume {
    0% {
        transform: translate3d(-50%, calc(-50% + 5vh), 0) scale(0.08);
    }

    100% {
        transform: translate3d(-50%, -50%, 0) scale(var(--logo-acilis-peak-olcek));
    }
}

@keyframes logoNetlikBuyume {
    0% {
        opacity: 0;
    }

    100% {
        opacity: var(--logo-acilis-peak-opak);
    }
}

@keyframes logoNetlikKoseye {
    0% {
        opacity: var(--logo-acilis-peak-opak);
    }

    55% {
        opacity: var(--logo-acilis-yol-opak);
    }

    100% {
        opacity: var(--logo-acilis-son-opak);
    }
}

#logo-kapsayici picture {
    display: block;
    width: var(--logo-size);
    max-width: 100%;
    background: transparent;
    line-height: 0;
}

#hareketli-logo {
    width: var(--logo-size);
    max-width: 100%;
    height: auto;
    display: block;
    position: relative;
    z-index: 1;
    user-select: none;
    -webkit-user-drag: none;
    background: transparent;
    border: 0;
    outline: none;
    filter: var(--logo-golge);
    transform: translateZ(0);
}

@keyframes logoAkis {
    0% {
        transform: translate3d(-50%, -50%, 0) translate3d(0, var(--logo-intro-kayma), 0) scale(0.94);
        opacity: 0.7;
    }

    100% {
        transform: translate3d(-50%, -50%, 0) translate3d(0, 0, 0) scale(1);
        opacity: var(--logo-opacity);
    }
}

@media (prefers-reduced-motion: reduce) {
    #logo-kapsayici.logo-intro-baslat {
        animation: none;
        transform: translate3d(-50%, -50%, 0) scale(1) !important;
        opacity: var(--logo-opacity) !important;
    }

    @media screen and (min-width: 769px) {
        #logo-kapsayici.logo-intro-baslat {
            left: var(--marka-sol-logo-sol) !important;
            top: var(--marka-sol-logo-ust) !important;
            transform: translate3d(0, var(--marka-sol-logo-yukari-ofset, 0), 0) scale(var(--marka-sol-logo-olcek)) !important;
            transform-origin: top left !important;
        }
    }
}

@media screen and (min-width: 1025px) {
    #logo-kapsayici {
        --logo-opacity: 0.68;
    }
}

@media screen and (max-width: 768px) {
    #logo-kapsayici {
        --anim-duration: 1.35s;
        --logo-opacity: 0.64;
    }
}

@media screen and (max-height: 680px) {
    #logo-kapsayici {
        --logo-ust-top: calc(clamp(1.75rem, 9vh, 4rem) + env(safe-area-inset-top, 0px));
    }
}

@media screen and (max-height: 520px) {
    #logo-kapsayici {
        --logo-ust-top: calc(clamp(1.25rem, 8vh, 3rem) + env(safe-area-inset-top, 0px));
    }
}