:root { color-scheme: dark; --bg:#0a0b0c; --panel:#0d0e0f; --fg:#f1f1ee; --muted:#acada9; --line:#424343; --selected:#292a2b; --stage:#dedfdd; --ink:#303332; font-family:Saira,system-ui,sans-serif; font-size:14px; }
* { box-sizing:border-box; }
body { margin:0; background:var(--bg); color:var(--fg); }
button,input,select,textarea { font:inherit; color:inherit; border:1px solid var(--line); border-radius:0; background:var(--panel); }
button,a,input,select,textarea { -webkit-tap-highlight-color:transparent; }
button { cursor:pointer; padding:8px 13px; min-height:40px; line-height:1.3; }
button:hover:not(:disabled) { border-color:var(--fg); background:var(--selected); }
button:active:not(:disabled) { transform:translateY(1px); }
button:disabled { opacity:.5; cursor:default; }
button[aria-pressed="true"] { color:var(--bg); background:var(--fg); border-color:var(--fg); }
.views button[aria-pressed="true"]:hover { color:var(--bg); background:var(--fg); }
:focus-visible { outline:2px solid var(--fg); outline-offset:3px; }
#view:focus-visible { outline-color:var(--ink); outline-offset:-5px; }
::selection { color:var(--bg); background:var(--fg); }
input,select,textarea { width:100%; padding:9px 10px; }
input::placeholder,textarea::placeholder { color:var(--muted); opacity:1; }
input,textarea { caret-color:var(--fg); }
textarea { resize:vertical; min-height:84px; }
a { color:var(--fg); text-underline-offset:4px; }
p { margin:0; }
label { display:block; color:var(--fg); font-weight:500; }
label input,label select { margin-top:6px; }
.page-head { height:72px; display:flex; align-items:center; gap:28px; border-bottom:1px solid var(--line); padding:0 28px; }
.brand { text-decoration:none; text-transform:uppercase; letter-spacing:.28em; font-size:14px; font-weight:500; }
h1 { font-size:18px; font-weight:400; margin:0; }
.builder-link { margin-left:auto; color:var(--muted); }
main { display:grid; grid-template-columns:290px minmax(0,1fr); height:calc(100dvh - 72px); }
.library { display:flex; flex-direction:column; min-height:0; background:var(--panel); border-right:1px solid var(--line); }
.filters { padding:20px 18px 12px; }
.filter-row { display:grid; grid-template-columns:1fr 1fr; gap:10px; margin-top:14px; }
.filter-row label { font-size:13px; }
#resultCount { margin-top:14px; color:var(--muted); font-size:13px; }
.pieces { overflow:auto; flex:1; padding:0 10px 14px; scrollbar-width:thin; scrollbar-color:var(--line) var(--panel); }
.piece { display:grid; grid-template-columns:58px 1fr; width:100%; min-height:80px; gap:12px; text-align:left; padding:10px 8px; border:0; border-bottom:1px solid var(--line); align-items:center; }
.piece[aria-pressed="true"] { background:var(--selected); color:var(--fg); box-shadow:inset 0 0 0 1px var(--fg); }
.piece img { width:58px; height:58px; background:var(--stage); object-fit:contain; }
.thumb { display:block; width:58px; height:58px; background:var(--stage); }
.piece .title { display:block; font-weight:500; font-size:14px; line-height:1.3; }
.piece .size { display:block; color:var(--muted); font-size:13px; margin-top:4px; }
.piece.has-note .size::after { content:' · Note saved'; }
#empty { padding:18px; } #empty button { margin-top:12px; }
.review { display:flex; flex-direction:column; min-width:0; min-height:0; overflow:auto; padding:22px 28px; gap:14px; scrollbar-width:thin; scrollbar-color:var(--line) var(--bg); }
.piece-head { display:flex; align-items:center; justify-content:space-between; gap:12px; }
h2 { font-size:24px; font-weight:400; line-height:1.2; margin:0; text-wrap:balance; }
#pieceSize { color:var(--muted); font-size:13px; margin-top:5px; }
.paging { display:flex; gap:6px; flex:none; }
.paging button { padding:7px; width:40px; }
svg { width:22px; height:22px; display:block; fill:none; stroke:currentColor; stroke-width:1.5; }
.view-toolbar { display:flex; gap:12px; align-items:center; justify-content:space-between; }
.views { display:flex; flex-wrap:wrap; gap:4px; }
.views button { padding:7px 12px; }
#reset { flex:none; }
.viewport { position:relative; background:var(--stage); color:var(--ink); min-height:260px; flex:1 0 300px; overflow:hidden; }
#view { width:100%; height:100%; position:absolute; inset:0; display:block; touch-action:none; }
#viewStatus { position:absolute; inset:0; display:grid; place-content:center; padding:28px; text-align:center; background:var(--stage); pointer-events:none; }
#viewStatus[hidden] { display:none; }
#retry { position:absolute; left:50%; top:60%; transform:translateX(-50%); }
.view-caption { position:absolute; inset:auto 16px 12px; display:flex; gap:14px; justify-content:space-between; font-size:13px; pointer-events:none; font-variant-numeric:tabular-nums; }
.view-foot,.reference-row,.note-label,.feedback-foot { display:flex; justify-content:space-between; align-items:center; gap:14px; }
.view-foot { margin-top:-5px; }
.view-foot p,.feedback-foot p,#noteStatus { font-size:13px; color:var(--muted); }
.reference-row label { flex:1; min-width:0; font-size:13px; }
#reference { font-size:13px; }
.reference-row button { align-self:flex-end; }
.feedback { display:flex; flex-direction:column; gap:8px; }
.feedback-foot { margin-top:2px; }
@media (min-width:1200px) { .review { padding:24px 36px; } .viewport { min-height:320px; } }
@media (max-width:900px) { main { grid-template-columns:240px minmax(0,1fr); } .filter-row { grid-template-columns:1fr; } .review { padding:20px; } .views button { padding:7px 9px; } .view-toolbar { align-items:flex-start; } }
@media (max-width:650px) {
  .page-head { padding:0 16px; gap:16px; height:60px; } .brand { font-size:12px; letter-spacing:.18em; } h1 { font-size:16px; } .builder-link { font-size:12px; }
  main { display:flex; flex-direction:column; height:auto; }
  .review { order:0; overflow:visible; padding:18px 16px; gap:12px; }
  .library { order:1; border-right:0; border-top:1px solid var(--line); }
  .pieces { max-height:420px; } .filters { padding:18px 16px 12px; }
  .filter-row { grid-template-columns:1fr 1fr; }
  h2 { font-size:20px; } .paging button { min-height:44px; width:44px; }
  .view-toolbar { flex-wrap:wrap; gap:8px; } .views { gap:4px; flex:1; }
  .views button { min-height:44px; padding:8px 10px; } #reset { min-height:44px; }
  .viewport { flex:none; height:42dvh; min-height:290px; }
  .view-foot p { max-width:190px; } .reference-row { gap:8px; } .feedback-foot { align-items:flex-start; }
  .feedback-foot p { max-width:180px; } .feedback-foot button { flex:none; } button { min-height:44px; }
}