:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --success: #10b981;
    --danger: #ef4444;
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }

.new-game-wrapper {
    background-color: var(--bg-color); color: var(--text-main);
    display: flex; justify-content: center; align-items: center;
    min-height: 100vh; overflow: hidden;
}

#game-container {
    width: 100%; max-width: 500px; background-color: var(--card-bg);
    border-radius: 16px; padding: 24px; box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
    position: relative;
    min-height: 500px;
}

.screen { display: none; flex-direction: column; align-items: center; text-align: center; animation: fadeIn 0.3s; }
.screen.active { display: flex; }

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

.game-title { font-size: 2rem; font-weight: 800; margin-bottom: 16px; color: #93c5fd; }
.instructions { color: var(--text-muted); margin-bottom: 32px; line-height: 1.6; }
.final-score { font-size: 1.5rem; font-weight: 700; color: #fcd34d; margin-bottom: 24px; }

.btn {
    border: none; padding: 12px 24px; border-radius: 8px; font-size: 1rem; font-weight: 700;
    color: white; cursor: pointer; transition: all 0.2s; width: 100%; max-width: 250px;
}
.btn.small { padding: 8px 16px; font-size: 0.9rem; margin-top: 12px; }
.btn:active { transform: scale(0.95); }
.btn.primary { background-color: var(--primary); }
.btn.primary:hover { background-color: var(--primary-hover); }

.header { display: flex; justify-content: space-between; width: 100%; margin-bottom: 24px; padding-bottom: 12px; border-bottom: 1px solid #334155; font-weight: 600; font-size: 0.9rem; }
.quiz-area { width: 100%; display: flex; flex-direction: column; gap: 20px; }
.question-text { font-size: 1.25rem; font-weight: 700; line-height: 1.4; color: #fff; min-height: 60px; }
.options-container { display: flex; flex-direction: column; gap: 12px; }

.opt-btn {
    background: #334155; color: #fff; border: 2px solid #475569;
    padding: 16px; border-radius: 8px; font-size: 1rem; font-weight: 600;
    cursor: pointer; transition: all 0.2s; text-align: left; width: 100%;
}
.opt-btn:hover { background: #475569; border-color: #64748b; }
.opt-btn:active { transform: scale(0.98); }
.opt-btn.correct { background: var(--success); border-color: var(--success); color: white; }
.opt-btn.wrong { background: var(--danger); border-color: var(--danger); color: white; }
.opt-btn:disabled { pointer-events: none; opacity: 0.8; }

.explanation-box { background: #0f172a; border: 1px solid #3b82f6; border-radius: 8px; padding: 16px; text-align: left; color: #bfdbfe; font-size: 0.95rem; margin-top: 8px; animation: fadeIn 0.3s; }
.explanation-box.hidden { display: none; }