.btn-download.primary background: #1b6b87; color: white; box-shadow: 0 2px 6px rgba(0,0,0,0.1);
.btn-download:hover background: #d6e9f2; transform: scale(0.96); color: #0c445e;
// Helper: generate descriptive content per TPO function getDescription(tpoNum) if (tpoNum <= 24) return "Reading + Listening + Speaking + Writing • Classic materials"; if (tpoNum <= 48) return "Updated passages, academic lectures, integrated tasks"; return "Latest edition • Real exam interface simulation, high difficulty"; Toefl Tpo 1-72 Download-
.search-box i color: #6f9fbb; font-style: normal; font-weight: 500;
.card-body padding: 0.5rem 1.3rem 1rem; flex: 1; .btn-download.primary background: #1b6b87
.toast-msg position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: #1e2f3c; color: white; padding: 12px 24px; border-radius: 60px; font-size: 0.85rem; font-weight: 500; z-index: 1000; box-shadow: 0 10px 25px -5px rgba(0,0,0,0.2); backdrop-filter: blur(8px); background: rgba(20, 50, 65, 0.95); transition: opacity 0.2s; pointer-events: none;
.filter-group display: flex; gap: 10px; flex-wrap: wrap; box-shadow: 0 2px 6px rgba(0
.btn-filter.active background: #1b6b87; border-color: #1b6b87; color: white; box-shadow: 0 3px 8px rgba(27,107,135,0.2);