/* STUDIO prototype. Monochrome UI (ink #1d1d1b, cream ground, pill #e7e6e1): the characters carry the colour. Tokens come from ../style.css. */
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.st { --ink: var(--sel, #1d1d1b); --line: rgba(29, 29, 27, .16); --line2: rgba(29, 29, 27, .32); --panel: #f7f6f0; --r: 14px; overflow-x: hidden; }
.st *:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; box-shadow: 0 0 0 5px rgba(255, 255, 255, .85); border-radius: 6px; }
.st h1, .st h2, .st h3 { font-family: var(--sans); }
.st-app { display: flex; flex-direction: column; height: calc(100vh - 40px); height: calc(100dvh - 40px); min-height: 640px; padding: 8px 12px 6px; gap: 8px; }

/* top bar */
.st-top { display: flex; align-items: center; gap: 8px 16px; flex-wrap: wrap; min-height: 44px; }
.st-brand { display: flex; align-items: baseline; gap: 12px; flex: none; }
.st-brand h1 { font-size: 1.35rem; letter-spacing: -.02em; }
.st-link { font: .62rem/1.2 var(--mono); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.st-link:hover { color: var(--ink); }
.st-namewrap { flex: 1 1 160px; min-width: 120px; max-width: 320px; }
.st-name { width: 100%; font: 600 .95rem/1 var(--sans); padding: 9px 12px; border-radius: 12px; border: 1px solid transparent; background: transparent; color: var(--fg); }
.st-name:hover { border-color: var(--line); } .st-name:focus { background: #fff; border-color: var(--ink); }
.st-actions { display: flex; align-items: center; gap: 6px; margin-left: auto; flex-wrap: wrap; }
.st-sep { width: 1px; height: 22px; background: var(--line2); margin: 0 4px; flex: none; }
.st-menuwrap { position: relative; }
.st-menu { position: absolute; right: 0; top: calc(100% + 6px); z-index: 50; min-width: 240px; background: #fff; border-radius: 14px; box-shadow: 0 1px 0 var(--line), 0 24px 50px -20px rgba(0, 0, 0, .4); padding: 6px; display: grid; }
.st-menu[hidden] { display: none; }
.st-menu button { text-align: left; background: transparent; border: 0; border-radius: 9px; padding: 9px 12px; font: .85rem/1.2 var(--sans); color: var(--fg); cursor: pointer; }
.st-menu button:hover, .st-menu button:focus-visible { background: var(--ink); color: #fff; }

/* controls */
.st-btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 34px; padding: 0 14px; border: 0; border-radius: 12px; background: var(--pill); color: var(--fg); cursor: pointer; font: 500 .82rem/1 var(--sans); white-space: nowrap; }
.st-btn:hover:not(:disabled) { filter: brightness(.95); }
.st-btn:disabled { opacity: .4; cursor: default; }
.st-btn[aria-pressed="true"], .st-btn-primary { background: var(--ink); color: #fff; }
.st-btn-sm { min-height: 30px; padding: 0 11px; font-size: .78rem; border-radius: 10px; }
.st-select, .st-text, .st-num { font: .8rem/1.2 var(--sans); color: var(--fg); background: #fff; border: 1px solid var(--line2); border-radius: 9px; padding: 7px 9px; min-width: 0; max-width: 100%; }
.st-select { min-height: 34px; border-radius: 12px; padding-right: 4px; }
.st-sm { padding: 5px 7px; font-size: .74rem; min-height: 30px; }
.st-num { width: 4.6em; padding: 5px 6px; font-variant-numeric: tabular-nums; text-align: right; }
.st-color { width: 34px; height: 28px; padding: 0; border: 1px solid var(--line2); border-radius: 8px; background: #fff; cursor: pointer; }

/* tab bar (below 1100px) */
.st-tabbar { display: none; gap: 4px; background: var(--pill); padding: 3px; border-radius: 14px; align-self: flex-start; }
.st-tab { border: 0; background: transparent; padding: 8px 14px; border-radius: 11px; cursor: pointer; font: 500 .8rem/1 var(--sans); min-height: 34px; }
.st-tab[aria-selected="true"] { background: var(--ink); color: #fff; }

/* main grid */
.st-main { flex: 1; min-height: 0; display: grid; gap: 8px; grid-template-columns: 150px 340px minmax(0, 1fr) 340px; grid-template-areas: "nav parts view insp"; }
.st-nav { grid-area: nav; gap: 1px; } .st-parts { grid-area: parts; } .st-view { grid-area: view; } .st-insp { grid-area: insp; }
.st-panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); display: flex; flex-direction: column; min-width: 0; min-height: 0; overflow: hidden; }
.st-panel-h { display: flex; align-items: center; gap: 8px 10px; padding: 8px 12px 6px 14px; flex: none; min-width: 0; flex-wrap: wrap; }
.st-panel-h h2 { font: 600 .66rem/1 var(--mono); text-transform: uppercase; letter-spacing: .16em; color: var(--muted); margin-right: auto; white-space: nowrap; }
.st-scroll { flex: 1; min-height: 0; overflow-y: auto; padding: 0 12px 12px; overscroll-behavior: contain; }
.st-legend { font: .6rem/1.3 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }

/* nav */
.st-nav { display: flex; flex-direction: column; gap: 2px; overflow-y: auto; padding: 6px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); }
.st-cat { text-align: left; border: 0; background: transparent; border-radius: 10px; padding: 6px 10px; font: 500 .84rem/1.1 var(--sans); color: var(--fg); cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 6px; min-height: 31px; flex: none; }
.st-cat:hover { background: var(--pill); }
.st-cat[aria-current="true"] { background: var(--ink); color: #fff; }
.st-cat[aria-disabled="true"] { opacity: .45; }
.st-cat small { font: .56rem/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; opacity: .7; }

/* parts */
.st-sec { margin: 10px 0 4px; display: flex; align-items: center; gap: 8px; }
.st-sec h3 { font: 600 .72rem/1.2 var(--mono); text-transform: uppercase; letter-spacing: .12em; flex: 1; }
.st-mini { font: .6rem/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; padding: 5px 8px; min-height: 26px; border-radius: 8px; border: 1px solid var(--line2); background: transparent; color: var(--fg); cursor: pointer; }
.st-mini[aria-pressed="true"] { background: var(--ink); color: #fff; border-color: var(--ink); }
.st-cell { display: contents; }
.st-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(88px, 1fr)); gap: 8px; list-style: none; margin: 0; padding: 0; }
.st-tile { width: 100%; position: relative; display: flex; flex-direction: column; align-items: stretch; gap: 4px; padding: 5px 5px 6px; border: 1.5px solid var(--line); border-radius: 12px; background: #fff; color: var(--fg); cursor: pointer; font: 500 .72rem/1.15 var(--sans); text-align: center; }
.st-tile:hover:not([aria-disabled="true"]) { border-color: var(--ink); }
.st-tile[aria-checked="true"], .st-tile[aria-pressed="true"] { border-color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--ink); }
.st-tile[aria-disabled="true"] { opacity: .45; cursor: not-allowed; }
.st-tile img, .st-tile .st-ph { width: 100%; aspect-ratio: 1; border-radius: 8px; background: #ecebe4; display: block; object-fit: cover; }
.st-tile .st-ph { background: linear-gradient(110deg, #ecebe4 30%, #f6f5ef 50%, #ecebe4 70%); background-size: 200% 100%; animation: st-sh 1.4s linear infinite; }
@keyframes st-sh { to { background-position: -200% 0; } }
@media (prefers-reduced-motion: reduce) { .st-tile .st-ph { animation: none; } }
.st-tile .st-nm { display: block; min-height: 2.3em; overflow-wrap: anywhere; }
.st-kind { position: absolute; top: 8px; right: 8px; font: 600 .5rem/1 var(--mono); letter-spacing: .08em; padding: 3px 4px; border-radius: 5px; background: rgba(255, 255, 255, .9); color: var(--ink); border: 1px solid var(--line2); }
.st-kind[data-k="glb"] { background: var(--ink); color: #fff; border-color: var(--ink); }
.st-kind[data-k="derived"] { background: #fff; border-style: dashed; }
.st-note { font: .74rem/1.4 var(--sans); color: var(--muted); margin: 6px 0; }
.st-warn { font: .76rem/1.4 var(--sans); background: #fff; border: 1px dashed var(--line2); border-radius: 10px; padding: 8px 10px; margin: 8px 0; color: var(--fg); }

/* sockets */
.st-sockets { list-style: none; margin: 0 0 8px; padding: 6px 0; display: flex; flex-wrap: wrap; gap: 4px; position: sticky; top: 0; z-index: 3; background: var(--panel); }
.st-socket { display: inline-flex; align-items: center; gap: 5px; padding: 3px 4px 3px 8px; border: 1.5px dashed var(--line2); border-radius: 999px; background: #fff; font: .72rem/1.2 var(--sans); min-height: 30px; max-width: 100%; }
.st-socket.is-over { border-style: solid; border-color: var(--ink); background: #f0efe7; }
.st-socket.is-blocked { background: transparent; color: #4a4a46; border-color: var(--line); }
.st-socket b { font: 600 .56rem/1.2 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.st-socket > span:first-of-type { max-width: 7.5em; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.st-socket > span:last-child { display: inline-flex; gap: 3px; align-items: center; }
.st-socket .st-color { width: 24px; height: 22px; }
.st-socket .st-x { border: 0; background: var(--pill); border-radius: 999px; min-width: 24px; min-height: 24px; cursor: pointer; font: 600 .8rem/1 var(--sans); }

/* sliders */
.st-ctl { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; padding: 8px 0 2px; }
.st-grp { border-top: 1px solid var(--line); padding: 4px 0 6px; }
.st-grp > summary { display: flex; align-items: center; gap: 8px; cursor: pointer; list-style: none; padding: 6px 0; font: 600 .68rem/1.2 var(--mono); text-transform: uppercase; letter-spacing: .12em; }
.st-grp > summary::-webkit-details-marker { display: none; }
.st-grp > summary::before { content: "+"; width: 12px; text-align: center; }
.st-grp[open] > summary::before { content: "\2212"; }
.st-grp > summary span { flex: 1; }
.st-row { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 2px 6px; align-items: center; padding: 3px 0; }
.st-row label { grid-column: 1 / -1; font: .76rem/1.2 var(--sans); }
.st-row input[type="range"] { width: 100%; min-width: 0; accent-color: var(--ink); height: 24px; }
.st-row .st-rs { border: 0; background: transparent; width: 28px; height: 28px; border-radius: 8px; cursor: pointer; font: 600 .8rem/1 var(--sans); color: var(--muted); }
.st-row .st-rs:hover { background: var(--pill); }
.st-row.is-real label::after { content: " (blendshape)"; font: .56rem/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }

/* materials */
.st-mat { display: grid; grid-template-columns: 1fr auto auto; gap: 6px 8px; align-items: center; padding: 6px 0; border-top: 1px solid var(--line); }
.st-mat .st-mn { font: 600 .76rem/1.2 var(--sans); grid-column: 1 / -1; }
.st-mat .st-sub { display: flex; align-items: center; gap: 6px; font: .7rem/1 var(--mono); color: var(--muted); }
.st-mat input[type="range"] { width: 90px; accent-color: var(--ink); }
.st-chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 4px 0 8px; }
.st-chip { display: inline-flex; gap: 2px; padding: 3px; border: 1.5px solid var(--line); border-radius: 10px; background: #fff; cursor: pointer; align-items: center; font: 500 .72rem/1 var(--sans); color: var(--fg); min-height: 32px; }
.st-chip:hover { border-color: var(--ink); }
.st-chip i { width: 14px; height: 22px; display: block; }
.st-chip i:first-child { border-radius: 6px 0 0 6px; } .st-chip i:nth-of-type(3) { border-radius: 0 6px 6px 0; }
.st-chip span { padding: 0 6px; }
.st-face-btns { display: flex; flex-wrap: wrap; gap: 6px; }
.st-pose { display: flex; flex-wrap: wrap; gap: 6px; }

/* viewport */
.st-view { position: relative; min-width: 0; min-height: 0; background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.st-vp-host { position: absolute; inset: 0; background: var(--st-bg, #e7e6e1); outline-offset: -3px; }
.st-canvas { display: block; width: 100%; height: 100%; touch-action: none; cursor: grab; }
.st-vp-top, .st-vp-bot { position: absolute; left: 8px; right: 8px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; pointer-events: none; }
.st-vp-top { top: 8px; } .st-vp-bot { bottom: 8px; }
.st-vp-top > *, .st-vp-bot > * { pointer-events: auto; }
.st-vp-top .st-btn, .st-vp-bot .st-btn, .st-vp-top .st-select, .st-vp-bot .st-select { background: rgba(255, 255, 255, .92); box-shadow: 0 1px 0 var(--line); }
.st-vp-top .st-btn[aria-pressed="true"], .st-vp-bot .st-btn[aria-pressed="true"] { background: var(--ink); }
.st-vp-bot { justify-content: flex-start; background: rgba(247, 246, 240, .0); }
.st-mouth { display: inline-flex; align-items: center; gap: 6px; background: rgba(255, 255, 255, .92); border-radius: 12px; padding: 0 10px; min-height: 34px; font: .72rem/1 var(--mono); box-shadow: 0 1px 0 var(--line); }
.st-mouth input { width: 90px; accent-color: var(--ink); }
.st-vp-msg { position: absolute; left: 50%; top: 56px; transform: translateX(-50%); background: var(--ink); color: #fff; padding: 8px 14px; border-radius: 12px; font: .8rem/1.3 var(--sans); max-width: 80%; text-align: center; }
.st-vp-msg[hidden], .st-drop[hidden] { display: none; }
.st-drop { position: absolute; inset: 6px; border: 2px dashed var(--ink); border-radius: 12px; display: grid; place-items: center; font: 600 .8rem/1 var(--mono); text-transform: uppercase; letter-spacing: .14em; color: var(--ink); background: rgba(255, 255, 255, .35); pointer-events: none; }

/* roster */
.st-roster { flex: none; }
.st-strip { list-style: none; margin: 0; padding: 0 12px 8px; display: flex; gap: 8px; overflow-x: auto; min-height: 70px; align-items: stretch; }
.st-card { flex: none; width: 92px; display: flex; flex-direction: column; gap: 3px; position: relative; }
.st-card > button.st-load { border: 1.5px solid var(--line); background: #fff; border-radius: 12px; padding: 4px; cursor: pointer; display: flex; flex-direction: column; gap: 3px; color: var(--fg); font: 500 .68rem/1.15 var(--sans); text-align: center; }
.st-card > button.st-load:hover { border-color: var(--ink); }
.st-card img { width: 100%; height: 52px; object-fit: cover; border-radius: 8px; background: #ecebe4; }
.st-card .st-del { position: absolute; top: 2px; right: 2px; width: 22px; height: 22px; border-radius: 7px; border: 0; background: rgba(255, 255, 255, .9); cursor: pointer; font: 600 .75rem/1 var(--sans); }
.st-empty { font: .78rem/1.4 var(--sans); color: var(--muted); padding: 6px 2px; align-self: center; }
.st-rules { margin: 0; padding: 0 4px; font: .72rem/1.3 var(--mono); color: var(--muted); min-height: 1.3em; max-height: 2.8em; overflow: hidden; }

/* notes below the app */
.st-notes { padding: 64px 0 24px; border-top: 1px solid var(--line); }
.st-notes h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); margin-bottom: .4em; }
.st-notes h3 { font-size: 1rem; margin: 1.2em 0 .4em; }
.st-lead { color: var(--muted); max-width: 52rem; }
.st-two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 40px; }
.st-notes ol, .st-notes ul { padding-left: 1.2em; margin: 0 0 1em; } .st-notes li { margin: .35em 0; font-size: .95rem; line-height: 1.5; }
.st-legend-box { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 8px; }
.st-legend-box p { margin: 0; padding: 10px 12px; background: #fff; border-radius: 12px; border: 1px solid var(--line); font-size: .85rem; line-height: 1.4; }
.st-legend-box b { font: 600 .6rem/1 var(--mono); text-transform: uppercase; letter-spacing: .1em; margin-right: 6px; }
@media (max-width: 800px) { .st-two { grid-template-columns: 1fr; } .st-notes { padding-top: 36px; } }

/* ---- narrower than 1100px: viewport on top, one panel at a time ---- */
@media (max-width: 1099px) {
  .st-app { height: auto; min-height: 0; }
  .st-tabbar { display: flex; }
  .st-main { display: flex; flex-direction: column; flex: none; }
  .st-view { order: 0; height: clamp(300px, 52svh, 520px); flex: none; }
  .st-nav { order: 1; flex-direction: row; overflow-x: auto; overflow-y: hidden; padding: 4px; scrollbar-width: thin; }
  .st-cat { flex: none; white-space: nowrap; }
  .st-parts, .st-insp { order: 2; max-height: none; }
  .st-parts .st-scroll, .st-insp .st-scroll { overflow: visible; }
  body[data-tab="parts"] .st-insp, body[data-tab="roster"] .st-insp, body[data-tab="roster"] .st-parts, body[data-tab="roster"] .st-nav, body[data-tab="morphs"] .st-parts, body[data-tab="morphs"] .st-nav { display: none; }
  body[data-tab="parts"] .st-roster, body[data-tab="morphs"] .st-roster { display: none; }
  .st-roster { order: 5; }
  .st-top { gap: 6px 10px; }
  .st-actions { margin-left: 0; width: 100%; }
  .st-link { display: none; }
  .st-grid { grid-template-columns: repeat(auto-fill, minmax(84px, 1fr)); }
}
@media (max-width: 560px) {
  .st-app { padding: 6px 8px; }
  .st-btn { padding: 0 10px; font-size: .78rem; }
  .st-vp-top .st-select { max-width: 40vw; }
}