.conteiner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 40px;
}

.cabecalho { 
    margin-bottom: 50px; 
}

h1 { 
    font-size: 3rem; 
}

.subtexto { 
    max-width: 500px; 
    margin-bottom: 0; 
}

.filtros {
    display: flex; 
    gap: 10px; 
    flex-wrap: wrap; 
    margin-bottom: 40px;
}

.filtro {
    background: transparent; 
    border: 1px solid var(--cor-borda);
    color: var(--texto-principal); 
    font-family: var(--fonte-mono);
    font-size: 0.85rem; 
    padding: 7px 18px; 
    border-radius: 999px;
    cursor: pointer; 
    transition: all 0.2s;
}

.filtro:hover { 
    border-color: var(--cor-destaque); 
    color: var(--cor-destaque); 
}

.filtro.ativo { 
    background: var(--cor-destaque); 
    border-color: var(--cor-destaque); 
    color: var(--cor-fundo); 
    font-weight: 700; 
}

.grade { 
    display: grid; 
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); 
    gap: 24px; 
}

.cartao {
    background: var(--cor-superficie); 
    border: 1px solid var(--cor-borda);
    border-radius: 10px; 
    overflow: hidden; 
    display: flex; 
    flex-direction: column;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.cartao:hover { 
    transform: translateY(-5px); 
    border-color: var(--cor-destaque); 
    box-shadow: 0 10px 30px rgba(0, 255, 204, 0.1); 
}

.cartao img { 
    width: 100%; 
    height: 200px; 
    object-fit: cover; 
    display: block; 
    filter: saturate(0.85); 
    transition: filter 0.3s; 
}

.cartao:hover img { 
    filter: saturate(1.1); 
}

.cartao .placeholder-img {
    width: 100%; 
    height: 200px;
    background: repeating-linear-gradient(45deg, #161b22, #161b22 10px, #1c2128 10px, #1c2128 20px);
    display: flex; 
    align-items: center; 
    justify-content: center;
    font-family: var(--fonte-mono); 
    color: #8b949e; 
    font-size: 0.9rem;
}

.cartao-corpo { 
    padding: 24px; 
    display: flex; 
    flex-direction: column; 
    gap: 10px; 
    flex: 1; 
}

.cartao-topo { 
    display: flex; 
    justify-content: space-between; 
    align-items: flex-start; 
    gap: 10px; 
}

.cartao-tags { 
    display: flex; 
    gap: 6px; 
    flex-wrap: wrap; 
}

.tag { 
    font-family: var(--fonte-mono); 
    font-size: 0.72rem; 
    padding: 3px 10px; 
    border-radius: 999px; 
    border: 1px solid var(--cor-borda); 
    color: #8b949e; 
    white-space: nowrap; 
}

.tag.ouro { 
    border-color: #ffd700; 
    color: #ffd700; 
}

.cartao h3 { 
    font-size: 1.25rem; 
    color: white; 
    white-space: nowrap; 
}

.cartao p { 
    font-size: 0.92rem; 
    color: var(--texto-principal); 
    line-height: 1.6; 
    flex: 1; 
}

.cartao-rodape { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    padding-top: 14px; 
    margin-top: 10px; 
    border-top: 1px solid var(--cor-borda); 
}

.badges { 
    display: flex; 
    gap: 6px; 
    flex-wrap: wrap; 
}

.badge { 
    font-family: var(--fonte-mono); 
    font-size: 0.72rem; 
    padding: 3px 10px; 
    background: rgba(0, 255, 204, 0.07); 
    border: 1px solid rgba(0, 255, 204, 0.2); 
    color: var(--cor-destaque); 
    border-radius: 4px; 
}

.link-projeto { 
    font-family: var(--fonte-mono); 
    font-size: 0.85rem; 
    color: var(--cor-destaque); 
    text-decoration: none; 
    white-space: nowrap; 
    transition: text-shadow 0.3s; 
}

.link-projeto:hover { 
    text-shadow: 0 0 10px var(--cor-destaque); 
}

.link-projeto.off { 
    color: #8b949e; 
    cursor: default; 
    pointer-events: none; 
}

@media (max-width: 700px) {
    .conteiner { padding: 40px 20px; }
    h1 { font-size: 2rem; }
    .grade { grid-template-columns: 1fr; }
}