#portfolio {
    position: relative;
    width: 100%;
    padding: 5vw 4vw 6vw;
    box-sizing: border-box;
    background-color: #0B1320;
    text-align: center;
}

.portfolio-titulo {
    margin: 0 0 0.6vw;
    font-size: 2.6vw;
    font-weight: bold;
    letter-spacing: 0.04em;
    color: #F5F5F5;
}

.portfolio-subtitulo {
    margin: 0 0 3vw;
    font-size: 1.05vw;
    color: #9FB3C8;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2vw;
    max-width: 1100px;
    margin: 0 auto 4vw;
    justify-content: center;
}

/* com um único card, ele fica menor e centralizado, em vez de esticar pra largura toda */
.portfolio-grid:has(.portfolio-card:only-child) {
    grid-template-columns: minmax(260px, 480px);
}

.portfolio-card {
    display: block;
    text-decoration: none;
    background: #0A3D62;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.5);
    cursor: pointer;

    /* só a suavidade da transição de escala — nada de cor mudando */
    transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.portfolio-card:hover {
    transform: scale(1.035);
}

.portfolio-card-imagem-container {
    position: relative;
    width: 100%;
    /* proporção real do screenshot (1919 x 1030) — cabe inteira, sem cortar */
    aspect-ratio: 1919 / 1030;
    overflow: hidden;
    background: #0B1320;
}

.portfolio-card-imagem-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.portfolio-card-corpo {
    padding: 1vw 1.2vw 1.3vw;
    text-align: left;
}

.portfolio-card-nome {
    margin: 0;
    font-size: 1.15vw;
    font-weight: bold;
    color: #F5F5F5;
}

/* bloco de contato */
.portfolio-contato {
    max-width: 640px;
    margin: 0 auto;
    padding: 2.4vw;
    background: #0A3D62;
    border-radius: 12px;
    border: 1px solid rgba(159, 179, 200, 0.3);
}

.portfolio-contato h3 {
    margin: 0 0 0.8vw;
    color: #F5F5F5;
    font-size: 1.6vw;
}

.portfolio-contato p {
    margin: 0 0 1.6vw;
    color: #9FB3C8;
    font-size: 1vw;
    line-height: 1.6;
}

.portfolio-contato-links {
    display: flex;
    gap: 1vw;
    justify-content: center;
    flex-wrap: wrap;
}

.portfolio-botao-contato {
    display: inline-block;
    padding: 0.7vw 1.6vw;
    background: transparent;
    border: 2px solid #00D4E6;
    color: #00D4E6;
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
    font-size: 0.95vw;
    transition: background 0.25s ease, color 0.25s ease;
}

.portfolio-botao-contato:hover {
    background: #00D4E6;
    color: #0B1320;
}

@media (max-width: 900px) {
    .portfolio-titulo { font-size: 6vw; }
    .portfolio-subtitulo { font-size: 3.4vw; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .portfolio-grid:has(.portfolio-card:only-child) { grid-template-columns: 1fr; }
    .portfolio-card-nome { font-size: 4.2vw; }
    .portfolio-contato h3 { font-size: 5vw; }
    .portfolio-contato p { font-size: 3.6vw; }
    .portfolio-botao-contato { font-size: 3.6vw; padding: 2.4vw 4vw; }
}