:root {
    --accent: #f59e0b; /* Laranja/Âmbar */
    --accent-hover: #d97706;
    --bg-main: #fffbeb;
    --container-bg: #ffffff;
    --text-dark: #1e293b;
    --text-muted: #64748b;
    --secondary: #475569;
    --success: #10b981;
    --danger: #ef4444;
}

/* SUPORTE AO MODO ESCURO - MÓDULO ALFABETO */
[data-theme="dark"] {
    --bg-main: #0f172a;
    --container-bg: #1e293b;
    --text-dark: #f8fafc;
    --text-muted: #94a3b8;
    --secondary: #cbd5e1;
}

[data-theme="dark"] .btn-resposta {
    background: #0f172a;
    border-color: #334155;
    color: var(--text-dark);
}

[data-theme="dark"] .context-panel {
    background: #0f172a;
    color: var(--text-dark);
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Segoe UI', system-ui, sans-serif; }
body { background-color: var(--bg-main); color: var(--text-dark); display: flex; justify-content: center; align-items: center; min-height: 100vh; padding: 15px; }

.app-container { background: var(--container-bg); width: 100%; max-width: 500px; border-radius: 20px; box-shadow: 0 10px 25px rgba(245, 158, 11, 0.1); padding: 30px; overflow: hidden; }
.screen { display: none; animation: fadeIn 0.4s ease; }
.screen.active { display: block; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.setup-title { font-size: 1.8rem; color: var(--text-dark); text-align: center; }
.setup-subtitle { font-size: 0.95rem; color: var(--text-muted); text-align: center; margin-bottom: 25px; }
.option-group { margin-bottom: 25px; }
.group-label { display: block; font-weight: 600; color: var(--secondary); margin-bottom: 10px; font-size: 1.05rem; }

/* BOTOES SELETOR TEMA */
.theme-selector { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 10px; margin-top: 10px; }
.theme-label { cursor: pointer; display: block; }
.theme-label input[type="checkbox"] { display: none; }
.theme-btn { background: var(--bg-main); border: 2px solid transparent; padding: 12px 10px; border-radius: 10px; text-align: center; font-size: 0.9rem; color: var(--text-muted); transition: all 0.2s; height: 100%; display: flex; align-items: center; justify-content: center; }
.theme-label input:checked + .theme-btn { background: rgba(245, 158, 11, 0.1); color: var(--accent); border-color: var(--accent); font-weight: bold; }

.btn-main { width: 100%; padding: 16px; background: var(--accent); color: white; border: none; border-radius: 12px; font-size: 1.1rem; font-weight: bold; cursor: pointer; transition: background 0.2s; margin-top: 10px; }
.btn-main:hover { background: var(--accent-hover); }

/* HEADER DO QUIZ */
.quiz-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; border-bottom: 2px solid var(--bg-main); padding-bottom: 15px; }
.badge { background: rgba(245, 158, 11, 0.15); color: var(--accent); padding: 5px 12px; border-radius: 20px; font-size: 0.85rem; font-weight: bold; }

/* GRELHA DE RESPOSTAS */
.grid-respostas { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 20px; }
.btn-resposta { background: var(--bg-main); border: 2px solid #e2e8f0; border-radius: 12px; padding: 15px; font-size: 1.1rem; color: var(--text-dark); cursor: pointer; transition: all 0.2s; font-weight: 600; }
.btn-resposta:hover { border-color: var(--accent); background: rgba(245, 158, 11, 0.05); }
.btn-resposta.correct { background: var(--success); border-color: var(--success); color: white; }
.btn-resposta.wrong { background: var(--danger); border-color: var(--danger); color: white; }

.context-panel { background: #f8fafc; border-left: 4px solid var(--accent); padding: 15px; border-radius: 0 8px 8px 0; margin-top: 20px; animation: fadeIn 0.4s ease; }

@keyframes shake { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(-5px); } 75% { transform: translateX(5px); } }
.shake { animation: shake 0.4s; }