.notes-page{padding:2rem 0;min-height:80vh}.page-header{text-align:center;margin-bottom:3rem}.page-title{font-size:2.5rem;font-weight:700;color:var(--primary-navy);margin-bottom:.5rem}.page-subtitle{font-size:1.1rem;color:var(--dark-gray)}.filters-section{background:var(--white);padding:2rem;border-radius:1rem;box-shadow:var(--shadow);margin-bottom:3rem;display:flex;flex-direction:column;gap:1.5rem}.search-box{display:flex;justify-content:center}.search-input{width:100%;max-width:400px;padding:.75rem 1rem;border:2px solid #e2e8f0;border-radius:.5rem;font-size:1rem;transition:border-color .3s ease}.search-input:focus{outline:none;border-color:var(--primary-navy)}.semester-filters{display:flex;justify-content:center;flex-wrap:wrap;gap:.75rem}.filter-btn{padding:.5rem 1rem;border:2px solid var(--primary-navy);background:transparent;color:var(--primary-navy);border-radius:.5rem;font-weight:600;cursor:pointer;transition:all .3s ease}.filter-btn.active,.filter-btn:hover{background:var(--primary-navy);color:var(--white)}.notes-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:2rem}@media screen and (max-width:640px){.notes-grid{grid-template-columns:1fr}}.semester-group{margin-bottom:2.5rem}.semester-heading{font-size:1.5rem;font-weight:700;color:var(--primary-navy);margin:1rem 0}.notes-group-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.5rem}.note-card{background:linear-gradient(145deg,#f8fafc,#fff);border-radius:2rem;box-shadow:var(--shadow);padding:1.5rem;display:flex;flex-direction:column;gap:1rem;transition:transform .3s ease}.note-card:hover{transform:translateY(-4px)}.note-thumbnail{font-size:2rem;border-radius:1rem}.note-content h3{margin:0;font-size:1.25rem;color:var(--primary-navy)}.note-subject{font-size:.9rem;font-weight:500;color:#334155;margin-bottom:.5rem}.note-description{color:var(--dark-gray);font-size:.875rem;margin-bottom:.5rem;line-height:1.5}.semester-badge{background:#e2e8f0;color:var(--primary-navy);padding:.25rem .75rem;border-radius:999px;font-size:.75rem;font-weight:600}.note-stats{font-size:.8rem;color:#64748b}.note-footer{margin-top:auto;display:flex;justify-content:space-between;align-items:center}.note-price{font-weight:700;color:var(--primary-navy)}.btn.btn-primary{background:var(--primary-navy);color:white;padding:.5rem 1rem;border-radius:6px;text-decoration:none;font-size:.9rem;transition:background .3s}.btn.btn-primary:hover{background:#001f5c}.no-results{text-align:center;padding:4rem 2rem;color:var(--dark-gray)}.no-results h3{font-size:1.5rem;margin-bottom:1rem;color:var(--primary-navy)}