html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: #ffffff;
    font-family: 'Roboto', Arial, sans-serif;
    text-align: center;
}
header {
    background-color: #0F6688;
    color: white;
    padding: 8px 0 8px 0;
    position: sticky;
    top: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
header h1 {
    font-size: 1.5rem;
    margin: 0;
    display: inline-block;
    margin-left: 16px;
}
.logo-ifusp {
    height: 34px;
    width: auto;
    margin-left: 18px;
    margin-right: 10px;
    display: block;
}
.social-buttons {
    display: flex;
    gap: 12px;
    margin-right: 15px;
}
.social-buttons a svg {
    display: block;
    width: 28px;
    height: 28px;
    transition: transform 0.2s, filter 0.2s;
}
.social-buttons a:hover svg {
    filter: brightness(1.2) drop-shadow(0 0 2px #FFD600);
    transform: scale(1.12);
}
main {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    min-height: 0;
    height: 100%;
}
.grid-section {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    width: 95vw;
    max-width: 3200px;
    margin: 0;
    padding: 12px 0 12px 0;
    box-sizing: border-box;
    height: 100%;
    min-height: 0;
    grid-template-areas:
        "main main"
        "mapa previsao"
        "radar radar";
}
.grid-item {
    background-color: white;
    border-radius: 0px;
    box-shadow: 0px 0px 10px rgba(0,0,0,0.1);
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    aspect-ratio: unset;
    min-width: 0;
    min-height: 0;
    max-width: 580px;
    max-height: 580px;
}
.grid-item:first-child {
    grid-area: main;
    grid-row: 1 / span 2;
    grid-column: 1 / span 2;
    min-height: 400px;
    min-width: 0;
    max-width: 100%;
    max-height: 100%;
    aspect-ratio: 2/1;
    z-index: 1;
}
.grid-item img {
    width: auto;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 0px;
    display: block;
}
footer {
    background-color: #0F6688;
    color: white;
    padding: 5px 0;
    /* bottom: 0; */
    /* left: 0; */
    width: 100%;
    z-index: 100;
    font-size: 0.95rem;
}
footer p {
    margin: 0;
}
a {
    color: #ffffff;
    text-decoration: underline;
    font-weight: 500;
}
a:visited {
    color: #ffffff;
}
a:hover, a:focus {
    color: #FFF176;
}
@media (orientation: landscape) {
    .grid-section {
        grid-template-columns: 1.5fr 1.5fr 1.1fr;
        grid-template-rows: 1.2fr 1fr;
        grid-template-areas:
            "main mapa previsao"
            "main mapa radar";
        height: 95vh;
    }
    .grid-item:first-child {
        grid-area: main;
        min-height: 0;
        min-width: 0;
        max-width: 100%;
        max-height: 100%;
        aspect-ratio: unset;
        z-index: 2;
        box-shadow: 0 0 18px 2px #0F668822;
        font-size: 1.1em;
    }
    .grid-item:nth-child(2) {
        grid-area: mapa;
        min-height: 0;
        min-width: 0;
        max-width: 100%;
        max-height: 100%;
        aspect-ratio: unset;
        z-index: 2;
        box-shadow: 0 0 18px 2px #0F668822;
        font-size: 1.1em;
    }
    .grid-item:nth-child(3) { grid-area: previsao; }
    .grid-item:nth-child(4) { grid-area: radar; }
}
@media (orientation: portrait) {
    body {
        display: block;
    }
    main {
        display: block;
        flex: unset;
        height: auto;
        min-height: unset;
    }
    header {
        flex-direction: column;
        align-items: center; /* centraliza horizontalmente */
        padding: 4px 4px 4px 0px;
        text-align: center;  /* centraliza texto */
    }
    .logo-ifusp {
        margin-left: 0;
        margin-right: 0;
        height: 28px;
    }
    header h1 {
        font-size: 1.05rem;
        margin-left: 0;
        margin-top: 4px;
        margin-bottom: 4px;
        display: block;
        text-align: center;
    }
    .social-buttons {
        margin-right: 0;
        margin-top: 4px;
        gap: 8px;
    }
    .social-buttons a svg, .social-buttons a i {
        width: 22px;
        height: 22px;
    }
    main {
        padding: 0;
        width: 100vw;
        min-width: 0;
        display: block;
    }
    .grid-section {
        display: flex;
        flex-direction: column;
        gap: 10px;
        width: 100vw;
        max-width: 100vw;
        padding: 6px 0;
        height: auto;
        min-height: 0;
        grid-template-areas: unset;
    }
    .grid-item {
        max-width: 100vw;
        max-height: 60vw;
        min-width: 0;
        min-height: 0;
        aspect-ratio: unset;
        width: 100vw;
        height: auto;
        box-shadow: 0px 0px 6px rgba(0,0,0,0.07);
    }
    .grid-item:first-child img {
        max-height: 90vw;
    }
    .grid-item img {
        width: 100vw;
        height: auto;
        max-width: 100vw;
        max-height: 60vw;
        object-fit: contain;
    }
    /* footer {
        font-size: 0.85rem;
        padding: 7px 2px;
        text-align: center;
        display: flex;
    }
    footer p {
        padding: 0 4px;
        word-break: break-word;
    } */
    a {
        font-size: 1em;
    }
}