/* /assets/css/catalog.css */
.catalog-page { padding: 2rem 0 4rem; }
.catalog-header { margin-bottom: 2rem; }
.catalog-title { font-size: clamp(1.75rem, 4vw, 2.75rem); font-weight: 800; margin-bottom: 0.5rem; background: linear-gradient(135deg, #fff 0%, #a78bfa 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; letter-spacing: -0.02em; }
.catalog-subtitle { color: var(--text-secondary); font-size: 1.05rem; }

.catalog-search { position: relative; margin-top: 1.5rem; max-width: 520px; }
.catalog-search input { width: 100%; padding: 0.95rem 3rem 0.95rem 1.25rem; background: rgba(255, 255, 255, 0.04); border: 1px solid rgba(255, 255, 255, 0.1); border-radius: 14px; color: var(--text-primary); font-family: inherit; font-size: 1rem; outline: none; transition: all 0.2s ease; }
.catalog-search input:focus { border-color: rgba(124, 58, 237, 0.5); background: rgba(124, 58, 237, 0.05); box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15); }
.catalog-search-clear { position: absolute; right: 0.75rem; top: 50%; transform: translateY(-50%); width: 32px; height: 32px; border-radius: 50%; background: rgba(255, 255, 255, 0.08); border: none; color: var(--text-secondary); font-size: 0.9rem; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all 0.2s ease; }
.catalog-search-clear:hover { background: rgba(239, 68, 68, 0.2); color: #ef4444; }

.catalog-filters { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.catalog-filter { padding: 0.75rem 1.25rem; background: rgba(255, 255, 255, 0.04); border: 1px solid rgba(255, 255, 255, 0.1); border-radius: 12px; color: var(--text-primary); font-family: inherit; font-size: 0.9rem; cursor: pointer; outline: none; appearance: none; -webkit-appearance: none; background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e"); background-repeat: no-repeat; background-position: right 1rem center; background-size: 1rem; padding-right: 2.5rem; transition: all .2s; }
.catalog-filter:focus { border-color: var(--accent-purple); }
.catalog-filter option { background: #131836; color: #fff; }

.catalog-loader { text-align: center; padding: 5rem 1rem; color: var(--text-muted); }
.catalog-loader .loader-spinner { margin: 0 auto 1rem; }
.catalog-empty { text-align: center; padding: 5rem 2rem; color: var(--text-muted); font-size: 1.05rem; }
.catalog-empty-icon { font-size: 4rem; margin-bottom: 1rem; opacity: 0.4; }

.quizzes-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.25rem; }
.quiz-card { position: relative; padding: 1.5rem; background: linear-gradient(145deg, rgba(20, 24, 54, 0.85), rgba(13, 17, 40, 0.95)); border: 1px solid rgba(255, 255, 255, 0.08); border-radius: 20px; cursor: pointer; overflow: hidden; transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); }
.quiz-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform 0.4s; }
.quiz-card:hover::before { transform: scaleX(1); }
.quiz-card:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--accent) 60%, transparent); box-shadow: 0 16px 32px color-mix(in srgb, var(--accent) 20%, transparent); }
.quiz-card-icon { width: 52px; height: 52px; border-radius: 14px; background: color-mix(in srgb, var(--accent) 20%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent); display: flex; align-items: center; justify-content: center; font-size: 1.75rem; margin-bottom: 0.85rem; }
.quiz-card-category { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); font-weight: 600; margin-bottom: 0.35rem; }
.quiz-card-title { font-size: 1.25rem; font-weight: 700; color: #fff; line-height: 1.2; margin-bottom: 0.5rem; }
.quiz-card-desc { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 1rem; min-height: 2.5em; line-height: 1.4; }
.quiz-card-meta { display: flex; flex-wrap: wrap; gap: 0.85rem; font-size: 0.8rem; color: var(--text-muted); padding: 0.75rem 0; border-top: 1px solid rgba(255,255,255,0.06); border-bottom: 1px solid rgba(255,255,255,0.06); margin-bottom: 1rem; }
.quiz-card-play { display: flex; align-items: center; justify-content: space-between; padding: 0.85rem 1.15rem; background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 50%, #ec4899)); color: #fff; border: none; border-radius: 12px; font-weight: 700; font-size: 0.95rem; cursor: pointer; transition: all 0.3s; width: 100%; font-family: inherit; }
.quiz-card-play:hover { transform: translateY(-2px); box-shadow: 0 8px 20px color-mix(in srgb, var(--accent) 50%, transparent); }

@media (max-width: 560px) {
    .quizzes-grid { grid-template-columns: 1fr; }
}