:root {
    --primary-color: #4f46e5;
    --secondary-color: #64748b;
    --success-color: #22c55e;
    --danger-color: #ef4444;
    --bg-light: #f8fafc;
}

body {
    background-color: var(--bg-light);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: #1e293b;
}

/* Карточки */
.quiz-card {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: none;
    border-radius: 12px;
    background: white;
}
.quiz-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Бейджи статусов */
.status-badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25em 0.75em;
    border-radius: 9999px;
}

/* Стили для конструктора */
.question-block {
    border-left: 4px solid var(--primary-color);
    background: white;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

/* Лидерборд */
.leaderboard-row.top-1 { background-color: #fef9c3; border-left: 4px solid #eab308; } /* Gold */
.leaderboard-row.top-2 { background-color: #f1f5f9; border-left: 4px solid #94a3b8; } /* Silver */
.leaderboard-row.top-3 { background-color: #ffedd5; border-left: 4px solid #f97316; } /* Bronze */

/* Анимация загрузки */
.fade-in { animation: fadeIn 0.3s ease-in; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }