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

html, body {
    width: 100%;
    font-family: "Dela Gothic One", sans-serif;
}

/* ─── ФОН ────────────────────────────────────────────────── */
body {
    position: relative;
    overflow: hidden;
}

.main-bg {
    display: block;
    width: 100%;
    height: auto; 
}

.desk {
    display: block;
    width: 100vw;
    height: 100vh;
    object-fit: cover;
    object-position: center top;
    
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
}

.adap {
    display: none;
}

/* ─── СТРАНИЦА ───────────────────────────────────────────── */
.page {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    
    display: flex;
    justify-content: center;
}

/* ─── БЛОК С КНОПКАМИ — вторая картинка ─────────────────── */
.board {
    position: relative;

    width: 40%;
    max-width: 36%;
    margin-top: 6vh;
}


.board-img {
    display: block;
    width: 100%;
    height: auto;
}

.board-overlay {
    position: absolute;
    inset: 0;
}

/* ─── КНОПКА МЕРЧ ────────────────────────────────────────── */
.merch-btn {
    position: absolute;
    top: 9%;
    left: 33%;
    transform: translateX(-50%);
    width: 33%;
    height: 19.5%;
    background: transparent;
    color: transparent;
    border: 0;
    cursor: pointer;
    transition: background .15s;
}

.merch-btn:hover {
    background: rgba(247, 239, 136, 0.15);
}

/* ─── СЕТКА КОНЦЕРТОВ ────────────────────────────────────── */
.concert-grid {
    position: absolute;
    top: 31.5%;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    display: grid;
    justify-content: center;
    
    grid-template-columns: 12% 12%; 
    gap: 8%;
    column-gap: 6%;
}

.concert-btn {
    display: block;
    width: 100%;
    aspect-ratio: 2 / 1;
    border: 1px solid black;
    border-radius: 10%;
    cursor: pointer;
    text-decoration: none;
    transition: background .15s, box-shadow .1s;
    box-shadow:
        0 0.3vw 0 black,
        0 0.4vw 0.6vw rgba(0,0,0,.6);
}

.concert-btn:hover {
    background: rgba(0,0,0,0.2);
    
}

.concert-btn:active {
    background: rgba(15,0,0,0.25);
    box-shadow:
        inset 0 0.3vw 0.1vw rgba(0,0,0,.9),
        inset 0 0.1vw 0.1vw rgba(0,0,0,.7),
        inset 0.1vw 0 0.1vw rgba(0,0,0,.5),
        inset -0.1vw 0 0.1vw rgba(0,0,0,.5);
}

.concert-btn.inactive {
    background: rgba(255,255,255,.08);
    border-color: rgba(255,255,255,.15);
    pointer-events: none;
    box-shadow: none;
}

@media (max-width: 5120px) {
    .board {
        width: 100%;
        max-width: 28%;
        margin-top: 6vh;
    }
}

@media (max-width: 3440px) {
    .board {
        width: 100%;
        max-width: 28%;
        margin-top: 6vh;
    }
}

@media (max-width: 1920px) {
    .board {
        width: 100%;
        max-width: 36%;
        margin-top: 6vh;
    }
}

@media (max-width: 1600px) {
    .board {
        width: 100%;
        max-width: 36%;
        margin-top: 6vh;
    }
}


@media (max-width: 1536px) {
    .board {
        width: 100%;
        max-width: 36%;
        margin-top: 6vh;
    }
}

@media (max-width: 1440px) {
    .board {
        width: 100%;
        max-width: 36%;
        margin-top: 6vh;
    }
}

@media (max-width: 1366px) {
    .board {
        width: 100%;
        max-width: 36%;
        margin-top: 6vh;
    }
}

@media (max-width: 1280px) {
    .board {
        width: 100%;
        max-width: 36%;
        margin-top: 6vh;
    }
}

/* ─── ПЛАНШЕТ ────────────────────────────────────────────── */
@media (max-width: 1024px) and (min-width: 769px) {
    .board {
        width: 100%;
        margin-top: 5vh;
        max-width: 100%;
    }

    html, body {
        height: 100vh;
        overflow: hidden;
    }

    .adap {
        display: block;
        width: 100vw;
        height: 100vh;
        object-fit: cover;
        object-position: center top;
        position: absolute;
        top: 0;
        left: 0;
        z-index: -1;
    }

    .desk {
        display: none;
    }
}

/* ─── МОБИЛКИ ────────────────────────────────────────────── */
@media (max-width: 768px) {
    .board {
        width: 100%;
        margin-top: 8vh;
        max-width: 100%;
    }

    html, body {
        height: 100vh;
        overflow: hidden;
    }

    .adap {
        display: block;
        width: 100vw;
        height: 100vh;
        object-fit: cover;
        object-position: center top;
        position: absolute;
        top: 0;
        left: 0;
        z-index: -1;
    }

    .desk {
        display: none;
    }
}

@media (max-width: 480px) {
    .board {
        width: 120%;
        max-width: 120%;
        flex-shrink: 0;
    }
}