.worksheet-library { position: relative; z-index: 1; max-width: 1200px; margin: 0 auto 64px; padding: 0 24px; }
#worksheet-library-count { margin: 16px 0; }
.worksheet-filters { display: grid; grid-template-columns: 2fr repeat(3, minmax(0, 1fr)); gap: 16px; padding: 24px 0; border-block: 1px solid #bcd6dd; }
.worksheet-filters label { display: grid; gap: 8px; min-width: 0; font-weight: 700; }
.worksheet-filters input, .worksheet-filters select { width: 100%; min-width: 0; min-height: 44px; padding: 10px; border: 1px solid #829ba5; border-radius: 4px; font: inherit; color: #183440; background: #fff; }
.worksheet-library-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.worksheet-library-item { display: flex; flex-direction: column; border: 1px solid #bdcfd5; border-top: 4px solid #267386; border-radius: 6px; padding: 20px; background: #fff; min-width: 0; }
.worksheet-library-item[data-subject=reading] { border-top-color: #ae446e; }
.worksheet-library-item[data-subject=science] { border-top-color: #357642; }
.worksheet-library-item[data-subject=geography] { border-top-color: #b97518; }
.worksheet-library-item[data-subject=creativity] { border-top-color: #7452a3; }
.worksheet-library-item[data-subject=history] { border-top-color: #a33d50; }
.worksheet-library-item h2 { font-size: 21px; margin: 10px 0; overflow-wrap: anywhere; }
.worksheet-library-item h2 a { color: #174d60; text-underline-offset: 3px; }
.worksheet-library-item p { color: #3a5260; line-height: 1.5; }
.worksheet-library-meta { font-size: 14px; margin: 0; font-weight: 700; }
.worksheet-library-code { display: flex; justify-content: space-between; gap: 8px; align-items: end; margin-top: auto; padding-top: 16px; margin-bottom: 0; font-size: 14px; }
.worksheet-library-code code { color: #174d60; white-space: nowrap; }
.worksheet-library [hidden] { display: none !important; }
.packet-library-actions { display:flex; flex-wrap:wrap; gap:16px; padding:16px 0; align-items:center; }
.packet-library-actions a { color:#174d60; font-weight:700; }
.packet-select { display:flex; gap:10px; align-items:center; min-height:44px; margin-top:12px; color:#183440; }
.packet-select input { width:20px; height:20px; }
@media (max-width: 900px) { .worksheet-library-grid, .worksheet-filters { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 550px) { .worksheet-library-grid, .worksheet-filters { grid-template-columns: minmax(0, 1fr); } }