/* Shared neutral palette: the light theme changes surfaces, not hierarchy. */
:root{color-scheme:dark;--canvas:#111112;--panel:#171718;--surface:#222224;--raised:#2c2c2f;--hover:#303033;--line:#2b2b2e;--ink:#f2f2f3;--muted:#a1a1a9;--faint:#80808a;--accent:#b9c7f5;--selected:#262628;--edge:#ffffff12;--shadow:#0006;--field:#1b1b1e;--good:#9fc9b6;--warn:#e7b57e;background:var(--canvas);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}
:root[data-theme=light]{color-scheme:light;--canvas:#fafafa;--panel:#f0f0f2;--surface:#fff;--raised:#e8e8ec;--hover:#e4e4e9;--line:#ddddE3;--ink:#202024;--muted:#61616c;--faint:#73737e;--accent:#455e9c;--selected:#e9e9ef;--edge:#ffffffc9;--shadow:#24243813;--field:#f4f4f7;--good:#3f7560;--warn:#925d29}
body{background:var(--canvas);color:var(--ink)}header{height:80px;border-bottom:0;padding:0 32px;gap:24px;background:var(--canvas)}.brand{font-size:18px;letter-spacing:-.6px;font-weight:600}.mark{background:var(--surface);border:1px solid var(--line);color:var(--ink);box-shadow:inset 0 1px 0 var(--edge);border-radius:10px}.version{color:var(--muted);background:var(--surface);font-size:10px}.header-note{color:var(--faint);font-size:12px}.mode-label{font-size:12px;color:var(--muted);gap:10px}.theme-toggle{display:flex;align-items:center;gap:8px;border-radius:25px;white-space:nowrap;min-height:36px;font-size:12px;padding:7px 13px}.theme-toggle>span:first-child{font-size:18px;line-height:1}.theme-toggle[aria-pressed=true]{color:var(--ink);background:var(--surface);border-color:var(--line)}
button,select{background:var(--surface);color:var(--ink);border-color:var(--line);box-shadow:inset 0 1px 0 var(--edge)}button:hover,select:hover{background:var(--hover)}select{border-radius:20px;font-size:12px}button:disabled{opacity:.4}button:focus-visible,select:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:4px}.workspace{grid-template-columns:205px minmax(460px,1fr) 280px;min-height:calc(100vh - 80px)}.navigation{border-right:0;padding:32px 16px 25px 24px}.navigation>.eyebrow{font-size:10px;color:var(--faint);letter-spacing:.8px}.nav-group{color:var(--faint);font-size:12px;margin:28px 10px 12px}.nav-button{border:1px solid transparent;box-shadow:none;border-radius:12px;color:var(--muted);height:43px;font-size:14px;gap:10px;padding:6px 9px}.nav-button:hover{background:var(--panel);color:var(--ink)}.nav-button .nav-icon{display:grid;place-items:center;width:26px;height:26px;border-radius:7px;background:var(--surface);color:var(--muted);font-size:17px;box-shadow:inset 0 1px 0 var(--edge)}.nav-button.selected{background:var(--selected);border-color:var(--line);color:var(--ink);font-weight:500}.nav-button.selected .nav-icon{color:var(--accent);background:var(--raised);box-shadow:inset 0 0 0 1px var(--line),0 0 9px #7c8cbb14}.num{display:none}.nav-foot{margin-top:55px}.nav-foot strong{color:var(--muted)}.nav-foot p,.nav-foot .small,.mini-mark{color:var(--faint)}main{padding:28px 32px 0}.title-row{margin-bottom:24px;align-items:end}.title-row .eyebrow{font-size:10px;letter-spacing:1px;color:var(--faint);margin-bottom:16px}.component-emblem{display:grid;place-items:center;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:linear-gradient(145deg,var(--raised),var(--panel));color:var(--accent);box-shadow:inset 0 1px 0 var(--edge);font-size:26px;margin-bottom:14px}h1{font-size:36px;letter-spacing:-1.3px;font-weight:560;margin:0 0 12px}.title-row p{color:var(--muted);font-size:14px;line-height:1.6}.specimen{color:var(--faint);border:0;background:var(--surface);border-radius:20px;font:10px/1.4 inherit;letter-spacing:.4px;padding:8px 11px;margin-bottom:4px}.stage{background:var(--panel);background-image:none;border:1px solid var(--panel);border-radius:18px;min-height:360px;height:40vh;box-shadow:inset 0 1px 0 var(--edge)}.stage:before{font-size:10px;letter-spacing:1px;color:var(--faint);top:21px;left:22px}.lane-label{color:var(--muted);font-size:11px}.lane-hint{color:var(--faint);font-size:12px}.lane+.lane{border-color:var(--line)}.transport{border:0;padding:15px 0 24px}.transport button{font-size:12px;border-radius:22px;padding:7px 14px;min-height:34px}.transport .quiet{background:transparent;box-shadow:none;border-color:transparent;color:var(--muted)}.speed-label{color:var(--muted)}.speed-label select{background:transparent;box-shadow:none}.divider{background:var(--line)}button[aria-pressed=true]{color:var(--ink);background:var(--selected);border-color:var(--line)}.profiles{border-top:1px solid var(--line);padding:22px 0}.eyebrow{color:var(--faint)}.profile-grid{gap:9px}.profile-card{background:var(--panel);box-shadow:inset 0 1px 0 var(--edge);border:1px solid var(--line);border-radius:12px;padding:14px 11px}.profile-card strong{font-size:13px;font-weight:500;color:var(--muted)}.profile-card span{font-size:11px;color:var(--faint)}.profile-card.active{background:var(--selected);border-color:var(--faint);box-shadow:inset 0 1px 0 var(--edge)}.profile-card.active strong{color:var(--ink)}.profile-card svg path:first-child{stroke:var(--line)}.profile-card svg path:last-child{stroke:var(--faint)}.profile-card.active svg path:last-child{stroke:var(--accent)}.small{color:var(--muted)}.insight{background:transparent;border:0;border-top:1px solid var(--line);border-radius:0;padding:20px 0;margin:0 0 15px;gap:14px}.insight-icon{color:var(--faint)}.insight h2{font-size:13px;color:var(--muted);font-weight:500}.insight p{font-size:12px;color:var(--faint);line-height:1.8}footer{color:var(--faint);border-color:var(--line);font-size:10px}
.inspector{background:var(--canvas);border-left:1px solid var(--line);padding:31px 22px;max-height:calc(100vh - 80px);position:sticky;top:0;scrollbar-width:thin;scrollbar-color:var(--line) transparent}.inspector-head{margin-bottom:22px}.inspector-head h2{font-size:13px;font-weight:500}.inspector-head span{background:var(--surface);color:var(--muted);border-radius:20px;font-size:11px;padding:5px 9px}.surface-controls{padding:20px 0;border-color:var(--line)}.surface-controls h2,.control-group h2,.access h2{font-size:13px;font-weight:500}.effect-toggle{font-size:13px;color:var(--muted)}input[type=checkbox],input[type=range]{accent-color:var(--accent)}.effect-palette,.effect-strength,.control-top{color:var(--muted);font-size:12px}.effect-palette select{max-width:122px;font-size:11px;padding-left:10px}.effect-sources a{color:var(--faint)}.control-group{border-color:var(--line)}.control-group h2 span{color:var(--faint)}.control output{background:var(--surface);border-color:var(--line);color:var(--muted);font-size:11px;border-radius:5px}.control{margin-bottom:19px}input[type=range]{height:3px}.access{border-color:var(--line)}.a11y-row,.check{color:var(--muted);font-size:12px}.pass{color:var(--good)}.warn{color:var(--warn)}.keyboard-info{background:var(--panel);color:var(--accent);border-radius:8px}.keyboard .demo button:before{background:var(--raised);border-color:var(--line);color:var(--accent)}
/* Specimens share the reference's matte, subtly bevelled component finish. */
.primary,.spec-button{background:linear-gradient(180deg,var(--raised),var(--surface));color:var(--ink);border:1px solid var(--line);box-shadow:inset 0 1px 0 var(--edge),0 6px 18px var(--shadow)}.primary:hover,.spec-button:hover{background:linear-gradient(180deg,var(--hover),var(--raised))}.spec-button{border-radius:15px;min-width:162px;height:52px;font-size:14px;font-weight:500}.surface{background:linear-gradient(155deg,var(--surface),var(--field));border-color:var(--line);border-radius:17px;color:var(--ink);box-shadow:inset 0 1px 0 var(--edge),0 14px 34px var(--shadow)}.surface h3{color:var(--ink);font-size:15px;font-weight:500}.surface p{color:var(--muted);font-size:13px}.surface button{border-radius:20px;font-size:12px;background:var(--raised)}.surface button:hover{background:var(--hover)}.surface textarea{color:var(--ink);caret-color:var(--accent)}textarea::placeholder{color:var(--faint);opacity:1}.composer:focus-within{border-color:var(--faint)}.composer .toolbar button{min-height:34px}.toolbar .send{border-radius:50%;width:36px;height:36px;padding:0}.attachment,.result{background:var(--field);border:1px solid var(--line);color:var(--muted);border-radius:9px}.attachment button{background:transparent}.status-icon{background:var(--raised);color:var(--accent);border:1px solid var(--line)}.status-text,.live-feedback{color:var(--muted)}.switch{background:var(--raised);box-shadow:inset 0 1px 3px var(--shadow)}.switch[aria-checked=true]{background:#6479a4}.thumb{background:linear-gradient(160deg,#fff,#c7ccd5);box-shadow:0 1px 4px #0005}.tabbar{background:var(--field);border:1px solid var(--line);border-radius:13px}.tabbar button{color:var(--muted);box-shadow:none}.tabbar button[aria-selected=true]{color:var(--ink)}.tab-indicator{background:var(--raised);border:1px solid var(--edge);border-radius:9px;box-shadow:0 1px 3px var(--shadow)}.tab-content{color:var(--muted)}.backdrop{background:#0007}.drawer{border-radius:17px 0 0 17px}.severity{background:#4c3024;color:#edbc9e}.surface .danger{background:#913f32;border-color:#ad594a;color:#fff}.surface .danger:hover{background:#a14b3b}.refinement select,.edit-count{background:var(--field);color:var(--ink);border-color:var(--line)}.fx-static{border-color:#9e92c0}.fx-static-metal{border-color:#94949f}.effect-swatch{border-color:var(--line)}[data-theme=light] .severity{background:#f5e8df;color:#8b4b2e}[data-theme=light] .backdrop{background:#20243024}[data-theme=light] .surface,[data-theme=light] .spec-button{box-shadow:inset 0 1px 0 #fff,0 8px 24px #22233b0d}
@media(min-width:1500px){.workspace{grid-template-columns:230px minmax(500px,1fr) 300px}main{padding:35px 46px 0}.stage{height:43vh}.navigation{padding-left:32px}}
@media(max-width:1120px){header{padding:0 22px;gap:15px}.workspace{grid-template-columns:166px minmax(360px,1fr) 250px}.navigation{padding-left:12px}main{padding:28px 22px 0}.inspector{padding:30px 17px}.header-note,.specimen{display:none}}
@media(max-width:850px){.workspace{grid-template-columns:140px minmax(0,1fr)}.inspector{position:static;max-height:none;border-left:0;background:var(--panel);border-radius:18px;margin:10px 22px 25px}.surface-controls{grid-column:1/-1}.mode-label{font-size:0}.nav-button{font-size:13px;padding:6px}.nav-button .nav-icon{width:23px;height:23px}.theme-toggle{padding:7px 10px}.theme-toggle #theme-label{display:none}header{gap:10px}.brand{font-size:16px}.version{display:none}}
@media(max-width:560px){header{height:68px;padding:0 14px}.brand{font-size:14px;gap:7px}.mark{width:26px;height:29px}.workspace{display:block}.navigation{padding:8px 12px 12px}.nav-button{padding:7px 12px}.nav-button .nav-icon{display:none}main{padding:23px 16px 0}h1{font-size:30px}.component-emblem{width:36px;height:36px;border-radius:10px;font-size:23px;margin-bottom:12px}.title-row .eyebrow{font-size:9px;margin-bottom:12px}.stage{min-height:340px}.inspector{margin:10px 16px 24px;padding:24px 18px}.profile-card{padding:12px 7px}.profile-card strong{font-size:11px}.profile-card span{font-size:10px}.profile-grid{gap:5px}.transport button{padding:7px 10px}.mode-label select{max-width:125px}.title-row p{font-size:13px}.stage.compare{height:720px}.lane+.lane{border-color:var(--line)}}

:root{--shadow-rgb:0 0 0;--response-rgb:255 255 255}:root[data-theme=light]{--shadow-rgb:36 36 56;--response-rgb:30 30 50}.demo .spec-button:hover,.demo .primary:hover{background:linear-gradient(rgb(var(--response-rgb) / var(--response,.08)),rgb(var(--response-rgb) / var(--response,.08))),var(--surface)}
/* QA: overlays size to their contents rather than the short trigger wrapper. */
.demo .pop{max-height:240px;min-height:205px;top:calc(100% + 12px);padding:18px;overflow:auto}
.stage:has(.pop){overflow:visible;z-index:3}
.pop button{display:block;width:100%;margin-top:8px}
.keyboard .demo button:not([data-order]):before{content:none}
.keyboard .drawer button[data-order]{position:relative}
.keyboard .drawer button[data-order]:before{content:attr(data-order);position:absolute;left:-6px;top:-11px;background:var(--raised);color:var(--accent);border:1px solid var(--line);font:10px ui-monospace,monospace;padding:1px 3px;border-radius:3px}
.popover-demo{translate:0 -70px;z-index:6}
.popover-demo .pop{box-sizing:border-box}
.lane-hint{pointer-events:none}
/* Compound specimens grow with their content; approval actions must not be cropped. */
.stage:has(.composer,.refinement,.status-head){height:auto;min-height:420px;max-height:none}
.stage:has(.composer,.refinement,.status-head) .demo{max-height:none}
.demo>.surface:not(.pop){max-height:none;flex-shrink:0}
@media(max-width:560px){
  .stage.compare:has(.composer,.refinement,.status-head){height:auto}
  .stage.compare:has(.composer,.refinement,.status-head) .lane{min-height:420px;padding-top:54px;padding-bottom:65px}
  .transport button{white-space:nowrap;font-size:11px;padding:7px 8px}
  .transport>div{gap:4px}
  .transport-right .speed-label{font-size:0;gap:0}
  .speed-label select{font-size:12px;padding-left:4px;padding-right:20px}
  .divider{margin:0 2px}
}
/* Explicit component layouts: decorative children cannot change CTA placement. */
.overlay-trigger{display:inline-flex;align-items:center;justify-content:center;gap:9px;vertical-align:middle}
.overlay-trigger>svg{display:block;flex:none;width:16px;height:16px}
.popover-demo{position:relative;translate:0 -74px;z-index:6}
.demo .pop{width:280px;max-width:calc(100% - 8px);height:auto;min-height:0;max-height:none;top:calc(100% + 12px);padding:18px;overflow:visible;display:block}
.pop .overlay-body>h3{margin:0 0 8px}.pop .overlay-body>p{margin:0 0 14px}
.pop .popover-option{display:flex;align-items:center;gap:9px;font-size:13px;line-height:1.5;min-height:34px;margin:8px 0 12px;color:var(--ink);cursor:pointer}
.popover-option input{width:16px;height:16px;margin:0;flex:none}
.pop .overlay-body>button{margin:0;min-height:36px;text-align:center}
.pop .overlay-actions{display:flex;justify-content:flex-end;padding-top:14px;margin-top:14px;border-top:1px solid var(--line)}
.pop .overlay-actions>button{width:auto;min-width:76px;margin:0}
.overlay-notes{padding:12px;background:var(--field);border:1px solid var(--line);border-radius:8px;font-size:12px!important;line-height:1.6}
.overlay-notes[hidden]{display:none!important}
.drawer{display:flex;flex-direction:column;padding:22px;gap:20px;overflow:hidden}
.drawer .overlay-body{flex:1;min-height:0;overflow:auto;overscroll-behavior:contain}
.drawer .overlay-body>p{margin:14px 0}
.drawer .overlay-actions{display:flex;flex-direction:column;gap:10px;flex-shrink:0;padding-top:16px;border-top:1px solid var(--line);margin-top:auto}
.drawer .overlay-actions>button{width:100%;margin:0;min-height:40px}
.drawer button:last-child{margin-top:0}
.lane{isolation:isolate}
.composer textarea:focus,.composer textarea:focus-visible{outline:none!important;box-shadow:none!important}
.composer:focus-within{outline:2px solid var(--accent);outline-offset:4px;border-color:var(--line)}
.composer textarea{display:block;resize:vertical;min-height:96px;margin:0 0 16px;padding:0}
.composer .toolbar{min-height:38px;align-items:center;gap:8px;transform:none!important;opacity:1!important}
.composer .toolbar>button{flex-shrink:0;min-height:36px;margin-top:0}
.composer .toolbar>button:not(.send){padding:7px 12px}
.composer .toolbar .send{margin-left:auto}
@media(max-width:560px){.drawer{padding:18px}.demo .pop{width:270px}.popover-demo{translate:0 -74px}}
/* Reserve room for the anchored panel, including expanded notes, before opening. */
.stage:has(.popover-demo){height:520px;min-height:520px;max-height:none}
.popover-demo{translate:0 -110px}
.pop .overlay-body{max-height:200px;overflow:auto;overscroll-behavior:contain}
.lane:has(.pop)>.lane-hint{visibility:hidden}
@media(max-width:560px){.stage.compare:has(.popover-demo){height:1040px}.stage.compare:has(.popover-demo) .lane{min-height:520px}.popover-demo{translate:0 -110px}}