:root {
    --bg-color: #0b0f1a;
    --card-bg: #161e2e;
    --sidebar-bg: #111827;
    --primary: #3b82f6;
    --accent: #10b981;
    --text: #f8fafc;
    --text-muted: #94a3b8;
}

body {
    background-color: var(--bg-color);
    color: var(--text);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    margin: 0;
    overflow-x: hidden;
}

header {
    padding: 20px;
    background: var(--sidebar-bg);
    border-bottom: 1px solid #1f2937;
    text-align: center;
}

.logo { font-size: 1.8rem; font-weight: 800; margin-bottom: 15px; }
.logo span { color: var(--primary); }

/* Categorias */
.categories-bar {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding-bottom: 5px;
    overflow-x: auto;
}

.cat-btn {
    background: #1f2937;
    border: none;
    color: var(--text-muted);
    padding: 8px 20px;
    border-radius: 20px;
    cursor: pointer;
    white-space: nowrap;
    transition: 0.3s;
}

.cat-btn.active, .cat-btn:hover {
    background: var(--primary);
    color: white;
}

/* Layout Principal */
.main-layout {
    display: flex;
    max-width: 1300px;
    margin: 20px auto;
    gap: 20px;
    padding: 0 20px;
    height: 75vh;
}

/* Sidebar de Jogos */
.game-sidebar {
    flex: 1;
    overflow-y: auto;
    background: var(--sidebar-bg);
    border-radius: 20px;
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.game-sidebar::-webkit-scrollbar { width: 5px; }
.game-sidebar::-webkit-scrollbar-thumb { background: #1f2937; border-radius: 10px; }

.game-card-mini {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px;
    background: #1f2937;
    border-radius: 15px;
    cursor: pointer;
    transition: transform 0.2s, background 0.2s;
    border: 1px solid transparent;
}

.game-card-mini:hover {
    background: #2d3748;
    transform: translateX(5px);
    border-color: var(--primary);
}

.game-card-mini img {
    width: 55px;
    height: 55px;
    border-radius: 12px;
    object-fit: cover;
}

.mini-info h4 { margin: 0; font-size: 0.9rem; }
.mini-info span { font-size: 0.7rem; color: var(--text-muted); }

/* Painel de Detalhes */
.game-display {
    flex: 2;
    background: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    border: 1px solid #1f2937;
}

#placeholder-msg {
flex: 1;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
color: var(--text-muted);
}

.pulse-icon { font-size: 4rem; animation: pulse 2s infinite; margin-bottom: 10px; }

.preview-banner img {
    width: 100%;
    height: 320px;
    object-fit: cover;
    border-bottom: 4px solid var(--primary);
}

.preview-info {
    padding: 30px;
    text-align: center;
}

.preview-info h2 { margin: 0 0 10px 0; font-size: 2rem; }
.preview-info p { color: var(--text-muted); line-height: 1.6; margin-bottom: 25px; }

.btn-main-play {
    background: linear-gradient(135deg, var(--primary), #2563eb);
    color: white;
    border: none;
    padding: 16px 60px;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 800;
    cursor: pointer;
    transition: 0.3s;
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.3);
}

.btn-main-play:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 25px rgba(59, 130, 246, 0.4);
}

/* Loading Overlay */
#loading-overlay {
position: fixed;
top: 0; left: 0;
width: 100%; height: 100%;
background: var(--bg-color);
display: none;
flex-direction: column;
align-items: center;
justify-content: center;
z-index: 9999;
}

.spinner {
    width: 50px; height: 50px;
    border: 5px solid rgba(59, 130, 246, 0.1);
    border-left-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 0%, 100% { opacity: 0.5; } 50% { opacity: 1; } }

footer { text-align: center; padding: 20px; color: var(--text-muted); font-size: 0.8rem; }

/* Responsividade Mobile */
@media (max-width: 850px) {
    .main-layout { flex-direction: column; height: auto; }
    .game-display { order: 1; min-height: 450px; }
    .game-sidebar { order: 2; max-height: 400px; }
}

/* --- RESPONSIVIDADE PARA TELEMÓVEIS E TABLETS --- */

@media (max-width: 768px) {
    /* Ajusta o espaçamento do topo */
    header {
        padding: 15px 10px;
    }

    .logo {
        font-size: 1.5rem;
    }

    /* Muda o layout de Lado-a-Lado para Coluna */
    .main-layout {
        flex-direction: column;
        height: auto; /* Permite que a página cresça conforme o conteúdo */
        padding: 10px;
        gap: 15px;
    }

    /* O painel do jogo (imagem e botão jogar) aparece primeiro no topo */
    .game-display {
        order: 1;
        min-height: auto;
        border-radius: 15px;
    }

    .preview-banner img {
        height: 200px; /* Imagem um pouco menor no telemóvel */
    }

    .preview-info {
        padding: 20px 15px;
    }

    .preview-info h2 {
        font-size: 1.5rem;
    }

    .btn-main-play {
        width: 100%; /* Botão ocupa a largura toda no telemóvel */
        padding: 14px;
    }

    /* A lista de jogos aparece em baixo do painel de detalhes */
    .game-sidebar {
        order: 2;
        max-height: 500px; /* Limita a altura para não ficar infinita */
        background: transparent;
        padding: 0;
    }

    /* Ajusta os cartões pequenos para serem mais fáceis de tocar */
    .game-card-mini {
        padding: 12px;
    }

    .game-card-mini img {
        width: 45px;
        height: 45px;
    }

    /* Faz a barra de categorias deslizar para os lados (Touch Scroll) */
    .categories-bar {
        justify-content: flex-start;
        overflow-x: auto;
        padding: 5px 10px 15px 10px;
        -webkit-overflow-scrolling: touch; /* Scroll suave no iOS */
    }

    .cat-btn {
        padding: 8px 18px;
        font-size: 0.85rem;
    }
}

/* Ajuste para ecrãs muito pequenos (iPhone SE, etc) */
@media (max-width: 380px) {
    .preview-banner img {
        height: 160px;
    }

    .mini-info h4 {
        font-size: 0.85rem;
    }
}