.workspace { display:grid; grid-template-columns:minmax(0,1fr) 290px; align-items:start; gap:20px; padding:0 0 14px; }
.library,.quick-panel { border:1px solid rgba(255,255,255,.85); border-radius:20px; background:rgba(255,255,255,.95); box-shadow:var(--shadow); }
.library { min-width:0; padding:24px; }
.library-heading { display:flex; align-items:center; justify-content:space-between; gap:20px; }
.library-heading h2 { margin-bottom:4px; color:var(--purple); font-size:28px; letter-spacing:-.04em; }
.library-heading p { color:var(--muted); font-size:12px; }
.search { display:flex; align-items:center; width:220px; height:42px; padding:0 14px; gap:10px; border:1px solid var(--line); border-radius:12px; color:#8a88a4; background:#faf9ff; box-shadow:0 0 0 0 rgba(96,54,247,0); transition:border-color .16s ease,box-shadow .16s ease,background .16s ease; cursor:text; }
.search:hover { border-color:#cfc4ff; background:#fff; }
.search:focus-within { border-color:var(--purple); background:#fff; box-shadow:0 0 0 4px rgba(96,54,247,.12); color:var(--purple); }
.search-icon { display:inline-flex; flex:0 0 auto; color:inherit; }
.search-icon svg { display:block; }
.search input { min-width:0; width:100%; border:0; outline:0; color:var(--ink); background:transparent; font:inherit; font-size:13px; }
.search input::placeholder { color:#9a98b2; }
.search input:focus,
.search input:focus-visible { outline:none; box-shadow:none; }
.search input::-webkit-search-decoration,
.search input::-webkit-search-cancel-button { -webkit-appearance:none; appearance:none; }
.filters { display:grid; gap:10px; margin-top:18px; margin-bottom:18px; }
.filter-row { display:flex; align-items:center; flex-wrap:wrap; gap:8px 10px; }
.filter-group { display:flex; align-items:center; flex-wrap:wrap; gap:7px; }
.chip { display:inline-flex; align-items:center; justify-content:center; gap:6px; min-height:34px; padding:0 13px; border:1px solid var(--line); border-radius:10px; color:#62617e; background:#fff; font-size:11px; font-weight:700; transition:.16s ease; }
.chip-icon { display:inline-flex; color:#8b89a6; }
.chip:hover { color:var(--purple); border-color:#cfc4ff; }
.chip:hover .chip-icon { color:var(--purple); }
.chip--active { color:var(--purple); border-color:#d6ccff; background:var(--soft); box-shadow:0 4px 10px rgba(93,43,242,.08); }
.chip--active .chip-icon { color:var(--purple); }
.lesson-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:16px; }
.lesson-card { overflow:hidden; display:flex; flex-direction:column; min-width:220px; border:1px solid rgba(79,56,170,.1); border-radius:16px; background:#fff; box-shadow:0 8px 22px rgba(48,34,103,.06); transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease; }
.lesson-card:hover { transform:translateY(-3px); border-color:#d6ccff; box-shadow:0 14px 28px rgba(48,34,103,.12); }
.lesson-card--selected { border-color:var(--purple); box-shadow:0 0 0 2px rgba(93,43,242,.12); }
.lesson-cover { position:relative; aspect-ratio:16/10; overflow:hidden; background:#ddd8f5; }
.lesson-cover img { width:100%; height:100%; object-fit:cover; }
.cover-badge { position:absolute; top:10px; right:10px; padding:5px 8px; border-radius:7px; color:#323800; background:var(--lime); font-size:10px; font-weight:800; letter-spacing:.02em; box-shadow:0 3px 8px rgba(0,0,0,.12); }
.cover-badge--popular { color:#fff; background:#ff2aa2; }
.lesson-body { display:flex; flex:1; flex-direction:column; padding:14px 12px 12px; }
.lesson-body h3 { margin-bottom:6px; color:var(--ink); font-size:15px; font-weight:750; line-height:1.25; letter-spacing:-.02em; }
.lesson-facts { color:#6d6b8c; font-size:12px; font-weight:600; }
.lesson-facts span { padding:0 6px; color:#b0aec2; }
.lesson-description { display:-webkit-box; -webkit-box-orient:vertical; -webkit-line-clamp:2; overflow:hidden; min-height:34px; margin-top:8px; color:#7d7b97; font-size:12px; line-height:1.45; }
.lesson-skills { display:flex; flex-wrap:wrap; margin-top:12px; gap:8px 12px; color:#6f6d8a; font-size:11px; font-weight:600; }
.skill-tag { display:inline-flex; align-items:center; gap:5px; }
.skill-tag svg { flex:0 0 auto; width:14px; height:14px; color:#8f8dad; }
.lesson-duration { display:inline-flex; align-items:center; gap:5px; margin-top:8px; color:#6f6d8a; font-size:11px; font-weight:600; }
.lesson-duration svg { flex:0 0 auto; width:14px; height:14px; color:#8f8dad; }
.lesson-actions { display:grid; grid-template-columns:1fr 1fr; gap:6px; margin-top:auto; padding-top:14px; }
.lesson-actions button { min-width:0; min-height:36px; padding:0 6px; border:1px solid #dcd5fb; border-radius:10px; color:var(--purple); background:#fff; font-size:11px; font-weight:700; line-height:1.1; letter-spacing:-.01em; white-space:nowrap; }
.lesson-actions button:last-child { color:#fff; border-color:var(--purple); background:var(--purple); box-shadow:0 6px 14px rgba(93,43,242,.2); }
.lesson-actions button:hover { filter:brightness(.97); transform:translateY(-1px); }
.show-more { display:block; width:min(360px,100%); min-height:38px; margin:24px auto 0; border:1px solid var(--line); border-radius:10px; color:var(--purple); font-size:11px; font-weight:800; }
.show-more:hover { background:#f8f6ff; }
.empty-state { padding:70px 20px; color:var(--muted); text-align:center; }
.empty-state span { font-size:38px; }
.empty-state h3 { margin:12px 0 6px; color:var(--ink); }
.empty-state p { font-size:12px; }
.quick-panel { padding:18px 14px 16px; }
.quick-title { display:flex; align-items:center; gap:8px; padding:0 2px 14px; color:var(--ink); }
.quick-title h2 { font-size:16px; font-weight:750; letter-spacing:-.02em; }
.quick-list { display:grid; gap:10px; }
.quick-card { position:relative; display:grid; grid-template-columns:64px minmax(0,1fr); align-items:center; padding:12px 12px 11px; gap:10px; border:1px solid rgba(79,56,170,.1); border-radius:14px; background:#fff; box-shadow:0 4px 14px rgba(48,34,103,.04); }
.quick-card--popular { padding-top:22px; }
.quick-card__media { display:grid; place-items:center; width:64px; height:64px; overflow:hidden; border-radius:12px; background:linear-gradient(160deg,#f4f1ff,#ebe6ff); }
.quick-card__media img { width:100%; height:100%; object-fit:cover; }
.quick-card__body { min-width:0; }
.quick-card h3 { margin-bottom:4px; color:var(--ink); font-size:12px; font-weight:750; line-height:1.25; letter-spacing:-.01em; }
.quick-card p { color:#7a7896; font-size:10px; line-height:1.4; }
.quick-card button { display:flex; align-items:center; justify-content:space-between; width:100%; min-height:28px; margin-top:8px; padding:0 10px; border:1px solid #e0daf9; border-radius:8px; color:var(--purple); background:#fff; font-size:11px; font-weight:700; }
.quick-card button:hover { background:#f8f6ff; }
.quick-popular { position:absolute; top:8px; right:8px; z-index:1; padding:3px 6px; border-radius:5px; color:#323800; background:var(--lime); font-size:8px; font-weight:800; line-height:1.2; white-space:nowrap; }
.exam-card,.tip-card { margin-top:12px; padding:16px 14px; border:1px solid rgba(79,56,170,.1); border-radius:14px; background:#fff; box-shadow:0 4px 14px rgba(48,34,103,.04); }
.eyebrow { display:flex; align-items:center; gap:8px; margin-bottom:12px; color:#2d2b47; font-size:12px; font-weight:750; }
.eyebrow-icon { display:inline-flex; align-items:center; justify-content:center; width:22px; height:22px; font-size:18px; line-height:1; }
.exam-card h3 { margin-bottom:6px; color:var(--ink); font-size:15px; font-weight:750; letter-spacing:-.02em; }
.exam-meta { margin-bottom:6px; color:#6d6b8c; font-size:12px; font-weight:650; }
.exam-meta span { padding:0 5px; color:#b0aec2; }
.exam-text { color:#7a7896; font-size:12px; line-height:1.45; }
.mini-meta { display:flex; flex-wrap:wrap; margin-top:12px; gap:8px 12px; color:#6f6d8a; font-size:11px; font-weight:600; }
.mini-meta span { display:inline-flex; align-items:center; gap:4px; }
.mini-meta svg { flex:0 0 auto; color:#8f8dad; }
.exam-actions { display:grid; grid-template-columns:1fr 1fr; gap:8px; margin-top:14px; }
.exam-actions button { min-height:36px; padding:0 8px; border:1px solid #ded8fb; border-radius:10px; color:var(--purple); background:#fff; font-size:12px; font-weight:700; white-space:nowrap; }
.exam-actions button:last-child { color:#252a00; border-color:var(--lime); background:var(--lime); box-shadow:0 4px 12px rgba(180,200,0,.2); }
.exam-actions button:hover { filter:brightness(.97); transform:translateY(-1px); }
.tip-card { background:linear-gradient(160deg,#fffdf4 0%,#faf8ff 100%); }
.tip-text { color:#7a7896; font-size:12px; line-height:1.5; }
.tip-card button { margin-top:12px; color:var(--purple); font-size:12px; font-weight:750; }
.tip-card button:hover { opacity:.85; }
@media (max-width:1360px) { .workspace { grid-template-columns:1fr; } .quick-panel { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:12px; } .quick-title,.quick-list { grid-column:1/-1; } .quick-title { padding:0; } .quick-list { grid-template-columns:repeat(3,minmax(0,1fr)); } .exam-card,.tip-card { margin-top:0; } }
@media (max-width:720px) { .library { padding:17px 13px; } .library-heading { align-items:flex-start; flex-direction:column; } .library-heading h2 { font-size:25px; } .search { width:100%; } .lesson-grid { gap:10px; } .quick-panel { display:block; } .quick-list { display:grid; grid-template-columns:1fr; } .exam-card,.tip-card { margin-top:12px; } }
@media (max-width:520px) { .lesson-grid { grid-template-columns:minmax(220px,1fr); } .lesson-card { display:grid; grid-template-columns:130px minmax(0,1fr); } .lesson-cover { height:100%; min-height:220px; aspect-ratio:auto; } .lesson-body h3,.lesson-description { min-height:0; } .lesson-actions { grid-template-columns:1fr; } }

.lesson-actions button:disabled,.quick-card button:disabled,.exam-actions button:disabled { color:#858093; border-color:#e2deea; background:#f2eff6; box-shadow:none; cursor:not-allowed; transform:none; filter:none; }
#library-loading,#library-error { padding:24px; color:var(--muted); text-align:center; }
#library-error button { margin:8px; color:var(--purple); text-decoration:underline; }

.library-unpublish { margin-top:10px; padding:5px; color:var(--muted); background:transparent; font-size:11px; text-decoration:underline; }