/* Abaixo de 800px: centralizar aba lateral; hora, texto e botão só quando aba recolhida */
@media screen and (max-width: 800px) {
    :root {
        /* Evita depender do 430px fixo no mobile/tablet */
        --sidebar-width: min(430px, 90vw);
    }

    body {
        overflow-x: hidden;
    }

    .sidebar {
        width: var(--sidebar-width);
        box-sizing: border-box;
        left: 50%;
        transform: translateX(-50%);
    }

    /* Abaixo de 800px: recolher por translate (não por cálculo com 430px) */
    .sidebar.collapsed {
        margin-left: 0 !important;
        left: 0 !important;
        transform: translateX(-105%) !important;
    }

    .main-content {
        left: 0;
        width: 100%;
        overflow: hidden;
    }

    /* Abaixo de 800px: ocultar totalmente; só exibir quando .main-content.expanded (aba recolhida) */
    .main-content:not(.expanded) .btn-recolher-content,
    .main-content:not(.expanded) .info-center {
        display: none !important;
        visibility: hidden !important;
        opacity: 0 !important;
        pointer-events: none !important;
        position: fixed !important;
        left: -9999px !important;
        top: -9999px !important;
        width: 1px !important;
        height: 1px !important;
        overflow: hidden !important;
        clip: rect(0, 0, 0, 0) !important;
        clip-path: inset(100%) !important;
    }

    .main-content:not(.expanded) {
        overflow: hidden !important;
    }

    /* Quando aba recolhida (.expanded): exibir e centralizar hora, texto e botão Explorar */
    .main-content.expanded .info-center {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        pointer-events: auto !important;
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
        text-align: center;
        right: auto;
        bottom: auto;
    }

    .main-content.expanded .info-center .clock {
        font-size: 80px;
        margin-bottom: 16px;
    }

    .main-content.expanded .info-center .site-title {
        font-size: 20px;
        margin-bottom: 8px;
    }

    .main-content.expanded .info-center .date-info {
        font-size: 14px;
        margin-bottom: 24px;
    }

    .main-content.expanded .btn-recolher-content {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
        pointer-events: auto !important;
        left: 30px;
        transform: none;
        bottom: 70px;
    }
}

@media screen and (max-width: 430px) {
    :root {
        --sidebar-width: 100vw;
    }

    .sidebar {
        width: 100%;
        max-width: 100%;
        left: 0;
        transform: none;
    }

    .sidebar.collapsed {
        margin-left: 0 !important;
        left: 0 !important;
        transform: translateX(-105%) !important;
    }
}

@media screen and (max-width: 1279px) {
    .sidebar-content {
        padding: 20px 20px 0 20px;
    }
    .vertical-text {
        display: none;
    }

    .info-center {        
        top: 50%;
        transform: translateY(-50%);
    }

    /* Entre 801px e 1279px: ocultar hora, texto e botão quando aba está visível */
    body .main-content:not(.expanded) .btn-recolher-content,
    body .main-content:not(.expanded) .info-center {
        display: none !important;
        visibility: hidden !important;
        opacity: 0 !important;
        pointer-events: none !important;
    }
}