* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #101418;
    color: #f5f7fa;
}

header {
    height: 56px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    padding: 0 18px;

    background: #161c22;
    border-bottom: 1px solid #2b333c;
}

#status {
    font-size: 13px;
    color: #8fd694;
}

main {
    max-width: 1100px;
    margin: auto;
    padding: 20px;
}

.welcome h1 {
    margin-bottom: 5px;
}

.welcome p {
    margin-top: 0;
    color: #aab2bd;
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;

    margin-top: 25px;
}

.grid button {
    min-height: 110px;

    border: 1px solid #303945;
    border-radius: 12px;

    background: #1a2129;
    color: white;

    font-size: 18px;

    cursor: pointer;

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;

    gap: 10px;
}

.grid button:active {
    background: #26313c;
}

.icon {
    font-size: 30px;
}

.resultado {
    margin-top: 25px;
    padding: 20px;

    min-height: 100px;

    border: 1px solid #303945;
    border-radius: 12px;

    background: #161c22;
}

@media (max-width: 600px) {
    .grid {
        grid-template-columns: repeat(2, 1fr);
    }

    main {
        padding: 14px;
    }

    .grid button {
        min-height: 95px;
    }
}