/* ── Library section ── */
.lib-hdr { margin-bottom:28px; }
.lib-hdr h1 { font-size:1.6rem; margin-bottom:6px; }
.lib-hdr p  { color:var(--text-secondary); font-size:.9rem; }
.lib-filters { display:flex; flex-direction:column; gap:14px; margin-bottom:24px; background:var(--bg-card); border:1px solid var(--border-subtle,#E5E7EB); border-radius:var(--r-lg); padding:18px 20px; }
.lib-filter-lbl { font-size:.72rem; text-transform:uppercase; letter-spacing:.08em; color:var(--text-muted); margin-bottom:6px; display:block; }
.lib-pills { display:flex; flex-wrap:wrap; gap:6px; }
.lib-pill { background:transparent; border:1px solid var(--border-subtle,#E5E7EB); border-radius:20px; padding:4px 12px; font-size:.82rem; color:var(--text-secondary); cursor:pointer; font-family:var(--font-body); transition:all .15s; }
.lib-pill:hover { border-color:var(--accent); color:var(--text-primary); }
.lib-pill.active { background:var(--accent); border-color:var(--accent); color:#fff; }
.lib-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(220px,1fr)); gap:12px; }
.lib-card { background:var(--bg-card); border:1px solid var(--border-subtle,#E5E7EB); border-radius:var(--r-lg); padding:14px 16px; display:flex; flex-direction:column; gap:6px; transition:border-color .15s; }
.lib-card:hover { border-color:var(--accent); }
.lib-card-top { display:flex; align-items:center; justify-content:space-between; }
.lib-card-word { font-weight:600; font-size:1rem; }
.lib-card-level { font-size:.68rem; background:rgba(79,70,229,.12); color:var(--accent); padding:2px 7px; border-radius:10px; font-weight:600; }
.lib-card-phonetic { font-size:.78rem; color:var(--text-muted); font-style:italic; }
.lib-card-translation { font-size:.88rem; color:var(--text-secondary); }
.lib-card-footer { display:flex; align-items:center; justify-content:space-between; margin-top:4px; }
.lib-card-theme { font-size:.72rem; color:var(--text-muted); }
.lib-add-btn { background:var(--accent); color:#fff; border:none; border-radius:8px; padding:4px 12px; font-size:.78rem; font-weight:600; cursor:pointer; font-family:var(--font-body); transition:opacity .15s; }
.lib-add-btn:hover { opacity:.85; }
.lib-add-btn:disabled { opacity:.4; cursor:not-allowed; }
.lib-add-btn.added { background:var(--green,#22C55E); }
/* Featured packs strip */
.lib-featured { display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-bottom:24px; }
.lib-feat-card { border-radius:var(--r-lg); padding:18px 16px; cursor:pointer; transition:transform .15s, box-shadow .15s; border:1px solid transparent; text-align:center; }
.lib-feat-card:hover { transform:translateY(-2px); box-shadow:0 6px 20px rgba(0,0,0,.25); }
.lib-feat-card .feat-icon { font-size:2rem; margin-bottom:8px; }
.lib-feat-card .feat-title { font-weight:700; font-size:.95rem; margin-bottom:4px; }
.lib-feat-card .feat-desc { font-size:.78rem; opacity:.8; line-height:1.4; }
.lib-feat-ff   { background:linear-gradient(135deg,rgba(251,146,60,.18),rgba(239,68,68,.12)); border-color:rgba(251,146,60,.4); }
.lib-feat-col  { background:linear-gradient(135deg,rgba(139,92,246,.18),rgba(99,102,241,.12)); border-color:rgba(139,92,246,.4); }
.lib-feat-em   { background:linear-gradient(135deg,rgba(34,197,94,.18),rgba(16,185,129,.12)); border-color:rgba(34,197,94,.4); }
@media(max-width:600px){ .lib-featured { grid-template-columns:1fr; } }
.lib-card.theme-false_friends { border-color:rgba(251,146,60,.35); }
.lib-card.theme-false_friends:hover { border-color:rgba(251,146,60,.75); }
.lib-card.theme-false_friends .lib-card-word::after { content:' ⚠️'; font-size:.75rem; }
.lib-card.theme-collocations { border-color:rgba(139,92,246,.35); }
.lib-card.theme-collocations:hover { border-color:rgba(139,92,246,.75); }
.lib-card.theme-emails { border-color:rgba(34,197,94,.35); }
.lib-card.theme-emails:hover { border-color:rgba(34,197,94,.75); }