/* Fundo com degrade sutil e dark mode vibes */
body {
    background: linear-gradient(135deg, #232526 0%, #414345 100%);
    color: #f5f5f5;
    font-family: 'Segoe UI', 'Roboto', Arial, sans-serif;
    min-height: 100vh;
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 0 1rem; /* Pequena margem lateral pra não colar na borda */
    scroll-behavior: smooth; /* Rolagem suave quando trocar seções */
}

/* Título principal chamativo com sombra */
h1 {
    margin-top: 2rem;
    font-size: clamp(2rem, 5vw, 2.5rem); /* Responsivo */
    letter-spacing: 2px;
    color: #ffd700;
    text-shadow: 2px 2px 8px #000a;
    user-select: none; /* Não deixa selecionar texto sem querer */
}

/* Container das ações, flex responsivo */
#setup-container {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
    flex-wrap: wrap; /* Se a tela for pequena, quebra linha */
    justify-content: center;
}

/* Cards com fundo semitransparente, cantos arredondados e sombra boa */
.card {
    background: rgba(35, 37, 38, 0.8);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.6);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 280px; /* Pra ficar minimamente grande */
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(255, 215, 0, 0.5);
}

/* Título dentro do card com cor e peso */
.card h2 {
    margin-top: 0;
    color: #ffd700;
    font-weight: 700;
    text-align: center;
}

/* Inputs bonitos, com foco mais claro e acessível */
input[type="text"] {
    padding: 0.7em 1em;
    border-radius: 6px;
    border: none;
    font-size: 1.1rem;
    margin-bottom: 1em;
    background: #414345;
    color: #ffd700;
    box-shadow: 0 1px 4px rgba(0,0,0,0.15);
    outline-offset: 2px;
    transition: box-shadow 0.2s, background-color 0.2s;
    width: 100%;
    max-width: 280px;
}

input[type="text"]::placeholder {
    color: #ffd700aa; /* Placeholder amarelo suave */
}

input[type="text"]:focus {
    box-shadow: 0 0 8px 2px #ffd700;
    background-color: #4a4c4d;
}

/* Botão com transições e hover style elegante */
button {
    padding: 0.7em 1.5em;
    border-radius: 6px;
    border: none;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    background: #ffd700;
    color: #232526;
    transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 8px rgba(255, 215, 0, 0.6);
    user-select: none;
}
button:hover,
button:focus {
    background: #ffec8b;
    transform: translateY(-3px);
    box-shadow: 0 8px 16px rgba(255, 215, 0, 0.9);
    outline: none;
}
button:active {
    transform: translateY(0);
}

/* Escolha de cor, bem espaçado e acessível */
#color-choice {
    display: flex;
    align-items: center;
    gap: 1em;
    margin-bottom: 1em;
    flex-wrap: wrap;
    justify-content: center;
}

#color-choice p {
    margin: 0;
    font-weight: 600;
    user-select: none;
}

/* Esconde radio, mas mantém acessível */
#color-choice input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

/* Labels estilizados e que indicam seleção */
#color-choice label {
    padding: 0.5em 1.5em;
    border-radius: 4px;
    cursor: pointer;
    background: #414345;
    color: #ffd700cc;
    font-weight: 600;
    user-select: none;
    transition: background 0.3s, color 0.3s;
    box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}
#color-choice input[type="radio"]:checked + label {
    background: #ffd700;
    color: #232526;
    box-shadow: 0 0 8px 2px #ffd700;
}

/* Lista de salas com scroll e estilo clean */
#rooms-list {
    list-style: none;
    padding: 0;
    max-height: 240px;
    overflow-y: auto;
    width: 100%;
    max-width: 300px;
    border-radius: 8px;
    background: rgba(65, 67, 69, 0.8);
    box-shadow: inset 0 0 10px rgba(0,0,0,0.6);
}

/* Cada sala com hover e display flex pra botar o botão no canto */
#rooms-list li {
    background: #414345;
    padding: 0.7em 1em;
    border-radius: 6px;
    margin-bottom: 0.5em;
    cursor: pointer;
    transition: background 0.3s;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: #ffd700dd;
}
#rooms-list li:hover {
    background: #5a5d60;
}

/* Botão de entrar na sala menor e discreto */
.room-join-btn {
    padding: 0.3em 0.8em;
    font-size: 0.9rem;
    border-radius: 4px;
    border: none;
    background: #ffd700cc;
    color: #232526;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(255, 215, 0, 0.7);
    transition: background 0.3s;
}
.room-join-btn:hover {
    background: #ffec8b;
}

/* Tabuleiro com sombra elegante e arredondado */
#board {
    margin: 2rem auto 1rem auto;
    box-shadow:
        0 8px 32px 0 rgba(0, 0, 0, 0.5),
        0 1.5px 8px 0 rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    overflow: hidden;
    max-width: 480px;
    width: 100%;
}

/* Status do jogo com background transparente e sombra */
#status {
    font-size: clamp(1rem, 2vw, 1.2rem);
    margin: 1.5rem 0 0.5rem 0;
    padding: 0.7em 1.5em;
    background: rgba(35, 37, 38, 0.8);
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.5);
    display: inline-block;
    min-width: 220px;
    font-weight: 600;
    letter-spacing: 1px;
    user-select: none;
}

/* Responsividade geral */
@media (max-width: 600px) {
    #setup-container {
        flex-direction: column;
        gap: 1.5rem;
        align-items: center;
    }
    .card {
        min-width: 90vw;
    }
    #rooms-list {
        max-width: 90vw;
        max-height: 180px;
    }
}