* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background-color: #0f1115;
    color: #e4e6eb;
    padding: 40px 20px;
    margin: 0;
}

h1 {
    text-align: center;
    font-weight: 600;
    font-size: 28px;
    color: #ffffff;
    margin-bottom: 8px;
}

.subtitulo {
    text-align: center;
    color: #8a8d93;
    font-size: 14px;
    margin-bottom: 40px;
}

.container {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    justify-content: center;
    max-width: 1100px;
    margin: 0 auto;
}

.card {
    background-color: #1a1d23;
    border: 1px solid #262a33;
    border-radius: 16px;
    padding: 24px 28px;
    min-width: 190px;
    text-align: center;
    transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
    transform: translateY(-4px);
    border-color: #3a3f4b;
}

.icone {
    font-size: 28px;
    margin-bottom: 10px;
}

.card h2 {
    font-size: 13px;
    font-weight: 500;
    color: #8a8d93;
    margin: 0 0 12px 0;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.valor {
    font-size: 30px;
    font-weight: 600;
    color: #ffffff;
    margin: 0;
}

.card.atualizacao .valor {
    font-size: 16px;
    color: #8a8d93;
    font-weight: 400;
}

.valor.bom,
.valor.atencao,
.valor.critico {
    display: inline-block;
    font-size: 15px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.valor.bom {
    color: #4ade80;
    background-color: rgba(74, 222, 128, 0.12);
}

.valor.atencao {
    color: #facc15;
    background-color: rgba(250, 204, 21, 0.12);
}

.valor.critico {
    color: #f87171;
    background-color: rgba(248, 113, 113, 0.12);
}

.pulso {
    display: inline-block;
    width: 8px;
    height: 8px;
    background-color: #4ade80;
    border-radius: 50%;
    margin-right: 6px;
    animation: piscar 1.5s infinite;
}

@keyframes piscar {
    0% {
        box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.6);
    }
    70% {
        box-shadow: 0 0 0 8px rgba(74, 222, 128, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(74, 222, 128, 0);
    }
}

.cabecalho {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 8px;
}

.logo {
    width: 56px;
    height: 56px;
}

.cabecalho h1 {
    margin-bottom: 4px;
}

.cabecalho .subtitulo {
    margin-bottom: 0;
    text-align: left;
}