body {
    background-image: url("/images/kvknet_vsb_logo.png");
    /* Arka plan resmi */
    background-size: 70% 45%;
    background-position: 55% 35%;
    background-repeat: no-repeat;
    opacity: 0.92;
    /* Solukluk için opaklık değeri */
}

/* KVKNET arka planı gösterme kapalı ise */
body.no-kvknet-bg {
    background-image: none !important;
    opacity: 1 !important; /* içerik opaklığı normal değere dönsün */
}

/* Alt-orta konumda şirket logosu */
img.company-logo-bottom {
    position: fixed;
    left: 50%;
    bottom: 24px;
    transform: translateX(-50%);
    max-height: 100px;
    max-width: 60vw;
    width: auto;
    height: auto;
    object-fit: contain;
    z-index: 10;
    pointer-events: none; /* tıklamaları engellemesin */
    opacity: 0.95;
}

.gradients {
    min-height: 100vh;
    display: -webkit-box;
    display: -webkit-flex;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    padding: 15px;
    background: #6bb2d1;
    background: linear-gradient(-180deg, #fff, #4087ad);
}

/* variables */
:root {
    --cancel: #c33764;
    --secondary: #f2994a;
    --standard: #155799;
    --submit: #159957;
    --white: #f1f2f2;
    --transition: all 0.25s ease-in-out;
}

/* mixin */
.btn,
.btn-secondary,
.btn-submit,
.btn-cancel {
    margin: 10px;
    padding: 6px 24px;
    font-size: 1em;
    text-transform: uppercase;
    transition: var(--transition);
}

.btn {
    border: 2px solid var(--standard);
    color: var(--standard);
    background-color: var(--white);
    &:hover

{
    background-color: var(--standard);
    border-color: var(--standard);
    color: var(--white);
}

&:active {
    background-color: var(--standard);
    border-color: var(--standard);
    color: var(--white);
    box-shadow: none;
}

    &:focus,
    &:active:focus {
        background-color: var(--standard);
        border-color: var(--standard);
        color: var(--white);
        outline: 5px auto var(--standard);
    }

&:visited {
    background-color: var(--standard);
    border-color: var(--standard);
}

}

.btn-secondary {
    border: 2px solid var(--secondary);
    color: var(--secondary);
    background-color: var(--white);
    &:hover

{
    background-color: var(--secondary);
    border-color: var(--secondary);
    color: var(--white);
}

&:active {
    background-color: var(--secondary);
    border-color: var(--secondary);
    color: var(--white);
    box-shadow: none;
}

    &:focus,
    &:active:focus {
        background-color: var(--secondary);
        border-color: var(--secondary);
        color: var(--white);
        outline: 5px auto var(--secondary);
    }

&:visited {
    background-color: var(--secondary);
    border-color: var(--secondary);
}

}

.btn-submit {
    border: 2px solid var(--submit);
    color: var(--submit);
    background-color: var(--white);
    &:hover

{
    background-color: var(--submit);
    border-color: var(--submit);
    color: var(--white);
}

&:active {
    background-color: var(--submit);
    border-color: var(--submit);
    color: var(--white);
    box-shadow: none;
}

    &:focus,
    &:active:focus {
        background-color: var(--submit);
        border-color: var(--submit);
        color: var(--white);
        outline: 5px auto var(--submit);
    }

&:visited {
    background-color: var(--submit);
    border-color: var(--submit);
}

}

.btn-cancel {
    border: 2px solid var(--cancel);
    color: var(--cancel);
    background-color: var(--white);
    &:hover

{
    background-color: var(--cancel);
    border-color: var(--cancel);
    color: var(--white);
}

&:active {
    background-color: var(--cancel);
    border-color: var(--cancel);
    color: var(--white);
    box-shadow: none;
}

    &:focus,
    &:active:focus {
        background-color: var(--cancel);
        border-color: var(--cancel);
        color: var(--white);
        outline: 5px auto var(--cancel);
    }

&:visited {
    background-color: var(--cancel);
    border-color: var(--cancel);
}

}

button {
    padding: 0.8em 1.8em;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    background-color: transparent;
    text-align: center;
    text-transform: uppercase;
    font-size: 16px;
    transition: 0.3s;
    z-index: 1;
    font-family: inherit;
    /* color: #17c3b2; */
    /* background-color: transparent; */
    color: black;
}

    button::before {
        content: "";
        width: 0;
        height: 300%;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%) rotate(45deg);
        /* background: #23a2b3; */
        transition: 0.5s ease;
        display: block;
        z-index: -1;
    }

    button:hover::before {
        width: 105%;
    }

/* button:hover {
        color: #ffffff;
      } */

/* card css */
.flip-card {
    /* background-color: transparent; */
    width: 300px;
    height: 150px;
    perspective: 1000px;
    font-family: sans-serif;
}

.title {
    font-size: 1.5em;
    font-weight: 900;
    text-align: center;
    margin: 0;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.8s;
    transform-style: preserve-3d;
}

.flip-card:hover .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
    box-shadow: 0 8px 14px 0 rgba(0, 0, 0, 0.2);
    position: absolute;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    border: 1px solid rgb(63, 197, 190);
    border-radius: 1rem;
}

.flip-card-front {
    background: linear-gradient(120deg, rgb(163 255 255) 60%, rgb(255, 231, 222) 88%, rgb(255, 211, 195) 40%, rgba(80, 255, 226, 0.603) 48%);
    color: black;
}

.flip-card-back {
    background: linear-gradient(120deg, rgb(163 255 255) 60%, rgb(255, 231, 222) 88%, rgb(255, 211, 195) 40%, rgba(80, 255, 226, 0.603) 48%);
    color: black;
    transform: rotateY(180deg);
}