:root{--bg:#0f1115;--surface:#1a1d24;--surface-2:#23272f;--text:#e8eaed;--muted:#9aa0aa;--accent:#4f8cff;--danger:#e5555a;--warn:#e0a83a;--success:#4caf7d;--radius:12px;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;font-family:system-ui,-apple-system,Segoe UI,sans-serif}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0}.app-shell{flex-direction:column;max-width:640px;min-height:100vh;margin:0 auto;display:flex}.app-header{padding:1rem 1rem .5rem}.app-header h1{margin:0;font-size:1.25rem}.app-main{flex:1;padding:0 1rem 5.5rem}.tab-bar{background:var(--surface);border-top:1px solid #2a2e37;max-width:640px;margin:0 auto;display:flex;position:fixed;bottom:0;left:0;right:0}.tab{color:var(--muted);background:0 0;border:none;flex:1;padding:.9rem 0;font-size:.95rem}.tab.active{color:var(--accent);font-weight:600}.muted{color:var(--muted)}.filters{flex-wrap:wrap;gap:.5rem;margin:1rem 0;display:flex}.filters select,.filters input{border-radius:var(--radius);background:var(--surface);min-width:45%;color:var(--text);border:1px solid #2a2e37;flex:1;padding:.6rem}button{cursor:pointer}.empty-state{text-align:center;padding:3rem 1rem}.flashcard{flex-direction:column;gap:1rem;display:flex}.queue-count{color:var(--muted);margin:0;font-size:.85rem}.card-front{background:var(--surface);border-radius:var(--radius);text-align:center;padding:3rem 1.5rem;font-size:2rem;font-weight:600}.show-answer{border-radius:var(--radius);background:var(--accent);color:#fff;border:none;padding:.9rem;font-size:1rem}.card-back{background:var(--surface);border-radius:var(--radius);flex-direction:column;gap:.6rem;padding:1.25rem;display:flex}.card-back .translation{margin:0;font-size:1.4rem;font-weight:600}.card-back .pos{color:var(--muted);margin:0;font-style:italic}.card-back .definition{margin:0}.examples{color:var(--muted);margin:0;padding-left:1.2rem}.chips{flex-wrap:wrap;gap:.4rem;display:flex}.chip{background:var(--surface-2);color:var(--muted);border-radius:999px;padding:.2rem .6rem;font-size:.75rem}.chip.category{color:var(--accent)}.rating-buttons{gap:.5rem;margin-top:.5rem;display:flex}.rating{border-radius:var(--radius);color:#fff;border:none;flex:1;padding:.8rem;font-weight:600}.rating.unknown{background:var(--danger)}.rating.hard{background:var(--warn)}.rating.known{background:var(--success)}.word-list{flex-direction:column;gap:.5rem;margin:0;padding:0;list-style:none;display:flex}.word-list-item{background:var(--surface);border-radius:var(--radius);flex-direction:column;gap:.4rem;padding:.8rem 1rem;display:flex}.word-list-main{justify-content:space-between;gap:1rem;display:flex}.word-list-main .english{font-weight:600}.word-list-main .translation{color:var(--muted)}.stat-tiles{grid-template-columns:repeat(2,1fr);gap:.6rem;margin:1rem 0;display:grid}.stat-tile{background:var(--surface);border-radius:var(--radius);flex-direction:column;gap:.2rem;padding:1rem;display:flex}.stat-value{font-size:1.8rem;font-weight:700}.stat-label{color:var(--muted);font-size:.85rem}.category-bars{flex-direction:column;gap:.5rem;display:flex}.category-bar-row{grid-template-columns:6rem 1fr 2.5rem;align-items:center;gap:.5rem;font-size:.85rem;display:grid}.category-bar-label{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.category-bar-track{background:var(--surface-2);border-radius:999px;height:.6rem;overflow:hidden}.category-bar-fill{background:var(--accent);height:100%}.category-bar-count{text-align:right;color:var(--muted)}@media (width>=480px){.card-front{font-size:2.5rem}}