:root {
    --bg-dark: #0f172a;        /* Azul Noite */
    --card-dark: #1e293b;      /* Slate Gray */
    --accent: #38bdf8;         /* Azul Turquesa */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border: #334155;
    --success: #22c55e;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navbar */
.navbar {
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(10px);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo { font-weight: 800; font-size: 1.2rem; letter-spacing: -0.5px; }
.sub-logo { color: var(--accent); font-weight: 400; }
.navbar nav a { text-decoration: none; color: var(--text-secondary); margin-left: 20px; transition: 0.3s; }
.navbar nav a.active { color: var(--accent); font-weight: 600; }

/* Container Principal */
.container { flex: 1; display: flex; flex-direction: column; align-items: center; padding: 60px 20px; }

.game-card {
    background: var(--card-dark);
    padding: 40px;
    border-radius: 24px;
    width: 100%;
    max-width: 650px;
    border: 1px solid var(--border);
    box-shadow: 0 20px 50px rgba(0,0,0,0.4);
    text-align: center;
}

/* Escudos e Stats */
.stats-bar {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin-bottom: 30px;
}

#escudo-nivel { font-size: 3rem; margin-bottom: 10px; filter: drop-shadow(0 0 10px var(--accent)); }
.xp-badge { background: var(--accent); color: var(--bg-dark); padding: 4px 16px; border-radius: 50px; font-weight: 800; font-size: 0.9rem; }
.level-text { color: var(--text-secondary); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; }

/* Quiz */
h2 { font-size: 1.5rem; margin-bottom: 35px; line-height: 1.4; font-weight: 500; }

.options-grid { display: grid; gap: 15px; width: 100%; }

.btn-opcao {
    background: rgba(51, 65, 85, 0.5);
    border: 1px solid var(--border);
    padding: 18px;
    border-radius: 12px;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-opcao:hover {
    background: var(--accent);
    color: var(--bg-dark);
    border-color: var(--accent);
    transform: translateY(-3px);
}

/* Botão Relatório */
.btn-report {
    margin-top: 30px;
    background: transparent;
    border: 1px dashed var(--text-secondary);
    color: var(--text-secondary);
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: 0.3s;
}

.btn-report:hover { color: var(--accent); border-color: var(--accent); }

.footer-app { padding: 40px; text-align: center; color: var(--text-secondary); font-size: 0.75rem; }

.analytics-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    width: 100%;
    max-width: 1000px;
    margin-top: 30px;
}

.chart-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.inference-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.inference-card {
    background: var(--card-dark);
    padding: 20px;
    border-radius: 16px;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 15px;
    text-align: left;
}

.inference-card h4 {
    color: var(--accent);
    margin-bottom: 5px;
    font-size: 0.9rem;
}

.inference-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.inference-card.highlight {
    border-color: var(--accent);
    background: rgba(56, 189, 248, 0.05);
}

.icon {
    font-size: 1.5rem;
}

@media (max-width: 768px) {
    .analytics-row { grid-template-columns: 1fr; }
}