:root{--bg:#0b0b0c;--surface:#17181b;--border:#2a2c31;--text:#f3f4f6;--muted:#9aa0aa;--accent:#4f7cff;--danger:#ff6b6b;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}.signin{place-items:center;min-height:100vh;padding:24px;display:grid}.signin__card{background:var(--surface);border:1px solid var(--border);border-radius:14px;flex-direction:column;gap:14px;width:100%;max-width:380px;padding:28px;display:flex}.signin__header{text-align:center;margin-bottom:6px}.signin__header h1{margin:0 0 4px;font-size:30px}.signin__header p{color:var(--muted);margin:0}.signin__field{color:var(--muted);flex-direction:column;gap:6px;font-size:14px;display:flex}.signin__field input{color:var(--text);border:1px solid var(--border);background:#0f1012;border-radius:8px;padding:10px 12px;font-size:15px}.signin__field input:focus{outline:2px solid var(--accent);outline-offset:1px}.signin__error{color:var(--danger);text-align:center;margin:0;font-size:14px}.signin__info{color:var(--muted);text-align:center;margin:0;font-size:14px}.signin__submit{color:#fff;background:var(--accent);cursor:pointer;border:none;border-radius:8px;padding:11px;font-size:15px;font-weight:600}.signin__submit:disabled{opacity:.5;cursor:not-allowed}.signin__toggle{color:var(--muted);cursor:pointer;background:0 0;border:none;padding:4px;font-size:14px}.signin__toggle:disabled{opacity:.5;cursor:not-allowed}.gate-loading{min-height:100vh;color:var(--muted);place-items:center;display:grid}.app-shell__bar{border-bottom:1px solid var(--border);background:var(--surface);align-items:center;gap:12px;padding:12px 18px;display:flex}.app-shell__user{color:var(--muted);margin-left:auto;font-size:14px}.app-shell__bar button{color:var(--text);border:1px solid var(--border);cursor:pointer;background:#0f1012;border-radius:8px;padding:6px 12px;font-size:14px}.app-shell__bar button:disabled{opacity:.5;cursor:not-allowed}.app-shell__body{color:var(--muted);padding:32px 18px}.browse{max-width:760px;margin:0 auto;padding:16px 18px 48px}.browse__banner{border-radius:8px;margin:0 0 12px;padding:8px 12px;font-size:13px}.browse__banner--syncing{color:var(--muted);border:1px solid var(--border);background:#14161b}.browse__banner--error{color:var(--danger);background:#1c1314;border:1px solid #3a2326}.browse__back{color:var(--accent);cursor:pointer;background:0 0;border:none;margin-bottom:12px;padding:4px 4px 4px 0;font-size:14px}.decks__head,.detail__head{align-items:center;gap:12px;margin-bottom:12px;display:flex}.decks__head h2,.detail__head h2{margin:0;font-size:22px}.detail__head h2{flex:1;min-width:0}.decks__head .btn{margin-left:auto}.detail__actions{flex-wrap:wrap;gap:6px;display:flex}.decks__empty{color:var(--muted);padding:16px 0}.decks__list{margin:0;padding:0;list-style:none}.deck-row{border-bottom:1px solid var(--border);align-items:center;gap:8px;padding:6px 8px 6px 12px;display:flex}.deck-row__chevron{width:16px;color:var(--muted);cursor:pointer;text-align:center;background:0 0;border:none;flex:0 0 16px;font-size:12px}.deck-row__chevron--leaf{cursor:default}.deck-row__name{text-align:left;min-width:0;color:var(--text);cursor:pointer;text-overflow:ellipsis;white-space:nowrap;background:0 0;border:none;flex:1;padding:2px 0;font-size:15px;overflow:hidden}.deck-badge{text-align:center;min-width:24px;color:var(--muted);background:#14161b;border-radius:999px;flex:none;padding:3px 9px;font-size:12px;font-weight:700}.deck-badge--active{color:#fff;background:var(--accent)}.deck-badge--muted{background:0 0;padding-right:0;font-weight:600}.detail__description{color:var(--muted);margin:0 0 12px}.detail__section{margin-top:22px}.detail__section h3{color:var(--muted);margin:0 0 8px;font-size:15px}.study-cta{color:#fff;background:var(--accent);cursor:pointer;border:none;border-radius:10px;width:100%;padding:12px;font-size:15px;font-weight:600;display:block}.study-cta:disabled{opacity:.5;cursor:not-allowed}.card-list{margin:0;padding:0;list-style:none}.card-list__item{border:1px solid var(--border);border-radius:8px;margin-bottom:6px}.card-list__edit{text-align:left;width:100%;color:var(--text);cursor:pointer;text-overflow:ellipsis;white-space:nowrap;background:0 0;border:none;border-radius:8px;padding:10px 12px;font-size:14px;display:block;overflow:hidden}.card-list__edit:hover:not(:disabled){background:#15161a}.card-list__edit:disabled{cursor:default}.btn{color:var(--text);border:1px solid var(--border);cursor:pointer;background:#0f1012;border-radius:8px;padding:7px 12px;font-size:14px}.btn:disabled{opacity:.5;cursor:not-allowed}.btn--primary{color:#fff;background:var(--accent);border-color:var(--accent)}.btn--danger{color:var(--danger);border-color:#3a2326}.study{flex-direction:column;align-items:center;gap:20px;padding:12px 0 24px;display:flex}.study__count{color:var(--muted);align-self:flex-start;margin:0;font-size:13px}.study__card{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:12px;width:100%;min-height:180px;padding:28px 16px;display:flex}.study__divider{border:none;border-top:1px solid var(--border);width:60%;margin:4px 0}.card-face{flex-direction:column;align-items:center;gap:10px;display:flex}.card-face__text{margin:0}.card-face--front .card-face__text{color:var(--text);font-size:28px;font-weight:600}.card-face--back .card-face__text{color:var(--muted);font-size:19px}.card-face__hint{color:var(--muted);margin:0;font-size:15px}.card-face__hint-btn{color:#facc15;cursor:pointer;background:0 0;border:1px solid #4a432099;border-radius:8px;padding:4px 10px;font-size:14px}.study__reveal{min-width:200px}.study__ratings{grid-template-columns:repeat(4,1fr);gap:8px;width:100%;display:grid}.study__rating{color:#fff;cursor:pointer;border:none;border-radius:10px;flex-direction:column;align-items:center;gap:2px;padding:12px 4px;display:flex}.study__rating:disabled{opacity:.6;cursor:not-allowed}.study__rating-label{font-size:15px;font-weight:600}.study__rating-interval{opacity:.85;font-size:12px}.study--done{padding-top:48px}.study__done-title{color:#22c55e;margin:0;font-size:22px;font-weight:600}.study__done-sub{color:var(--muted);margin:0}.editor{flex-direction:column;gap:16px;max-width:460px;display:flex}.editor h2{margin:0;font-size:22px}.editor__field{color:var(--muted);flex-direction:column;gap:6px;font-size:14px;display:flex}.editor__field input,.editor__field select{color:var(--text);border:1px solid var(--border);background:#0f1012;border-radius:8px;padding:10px 12px;font-size:15px}.editor__actions{justify-content:flex-end;gap:8px;display:flex}.editor__hints{border:1px solid var(--border);border-radius:8px;gap:8px;padding:12px}.editor__hints legend{color:var(--muted);padding:0 6px;font-size:13px}.editor__hint-row{align-items:center;gap:8px;display:flex}.editor__hint-row input{flex:1}.editor__add-hint{align-self:flex-start}