/* Data Fest landing — только постер и кнопка админки */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

body.landing-datafest {
    min-height: 100vh;
    min-height: 100dvh;
    background: #e8e8e8;
}

.admin-btn {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #444;
    text-decoration: none;
    z-index: 1000;
    transition: background 0.2s ease, transform 0.2s ease;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.12);
}

.admin-btn:hover {
    background: #fff;
    transform: rotate(45deg);
}

.landing-main {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    background-color: #e8e8e8;
    background-repeat: no-repeat;
    background-position: center center;
    background-size: contain;
}

@media (max-width: 768px) {
    .admin-btn {
        top: 12px;
        right: 12px;
        width: 40px;
        height: 40px;
    }

    .landing-main {
        background-size: cover;
    }
}