/* A single workspace, with progressive detail inside each view. */
.studio-page { margin: 0; background: var(--surface); color: var(--text); }
.studio, .studio * { box-sizing: border-box; }
.studio { font: 16px/1.6 var(--font-ui); padding-bottom: 64px; }
.studio :is(h1, h2, h3, p, figure) { margin: 0; }
.studio a { color: inherit; text-decoration: none; }
.studio :is(button, input, textarea) { font: inherit; }
.studio button, .studio summary { cursor: pointer; }
.studio [hidden] { display: none !important; }
.studio :focus-visible { outline: 3px solid var(--brand); outline-offset: 4px; }
.studio [id] { scroll-margin-top: 140px; }
.studio-container { width: min(var(--container), calc(100% - 80px)); margin-inline: auto; }
.studio .visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.studio .studio-eyebrow { font: 500 13px/1.5 var(--font-ui); letter-spacing: 0; text-transform: none; color: var(--muted); margin-bottom: 12px; }
.studio h1 { font: 400 clamp(34px, 3.4vw, 48px)/1.1 var(--font-ui); letter-spacing: -.04em; color: var(--brand); }
.studio h2 { font: 400 29px/1.2 var(--font-ui); letter-spacing: -.025em; color: var(--brand); }
.studio-intro { padding: 32px 0 30px; display: flex; justify-content: space-between; align-items: center; gap: 30px; }
.studio-intro > p { color: var(--muted); font-size: 16px; line-height: 1.6; }
.studio-workspace { border: 1px solid var(--border); border-radius: var(--radius-panel); background: white; scroll-margin-top: calc(var(--workspace-header-offset) + 12px); }
.workspace-bar { position: sticky; top: var(--workspace-header-offset); z-index: 20; background: white; border-radius: 16px 16px 0 0; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 0 28px; border-bottom: 1px solid var(--border); }
.workspace-tabs { display: flex; gap: 8px; padding-block:12px; }
.workspace-tabs > button { position: relative; display: flex; align-items: center; gap: 10px; border: 1px solid transparent; border-radius:var(--radius-pill); background: transparent; color: var(--muted); min-height: 46px; padding: 10px 18px; transition:background var(--duration),border-color var(--duration),color var(--duration); font-size: 17px; }
.workspace-tabs > button > span:first-child { font-size: 11px; opacity: .65; }
.workspace-tabs > button[aria-selected=true] { color: var(--brand); background:var(--surface-soft); border-color:var(--border); }
.workspace-tabs > button:hover { color: var(--brand); background:var(--surface-soft); }
.project-count { display: grid; place-items: center; min-width: 23px; height: 23px; padding-inline: 5px; border-radius: 20px; background: var(--surface-soft); font-size: 12px; }
.workspace-hint { color: var(--muted); font-size: 12px; }
.workspace-panel { padding: 28px; min-width: 0; }
.workspace-panel:focus { outline-offset: -5px; }
.workspace-heading { margin-bottom: 22px; }
.workspace-heading p { margin-top: 8px; color: var(--muted); }
.explorer-layout { --system-padding-top: 25px; display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 26px; align-items: start; }
.explorer-sidebar { padding-top: var(--system-padding-top); }
.system-picker { display: flex; flex-direction: column; gap: 5px; }
.system-picker button { display: grid; grid-template-columns: 1fr; gap: 10px; align-items: center; text-align: left; min-height: 55px; padding: 12px; border: 1px solid transparent; border-radius: var(--radius); background: white; color: var(--muted); font-size: 15px; line-height: 1.45; transition: background var(--duration), color var(--duration); }
.system-picker button:hover { background: var(--surface-soft); color: var(--brand); }
.system-picker button[aria-pressed=true] { background: var(--surface-soft); color: var(--brand); border-color: var(--border); box-shadow:inset 3px 0 var(--brand); }
.studio .picker-hint { margin: 22px 12px 0; color: var(--muted); font-size: 13px; max-width: 190px; }
.explorer-content { min-width: 0; }
.system-panel { padding: var(--system-padding-top) 26px 18px; border-radius: 12px; background: var(--brand-dark); color: #eeedf6; min-width: 0; overflow: hidden; }
.system-panel-heading { display: flex; justify-content: space-between; gap: 20px; align-items: start; }
.system-panel-heading p { font-size: 13px; color: #b6b0ce; letter-spacing: 0; margin-bottom: 6px; }
.system-panel-heading h2 { font-size: 30px; color: white; }
.motion-toggle { border: 1px solid #ffffff35; border-radius: var(--radius-pill); padding: 9px 13px; background: transparent; color: #eeedf6; font-size: 12px !important; white-space: nowrap; }
.motion-toggle:hover { background: #ffffff15; }
.studio .system-measurements { font-size: 15px; color: var(--accent); margin-top: 8px; }
.system-diagram { --flow-art-height: 190px; --flow-column-gap: 9px; position: relative; margin-top: 4px; }
.flow-connection { position: absolute; top: calc(var(--flow-art-height) * .504); left: calc((100% - 3 * var(--flow-column-gap)) / 8); width: calc(100% - (100% - 3 * var(--flow-column-gap)) / 4); height: 1px; overflow: visible; pointer-events: none; }
.flow-node { opacity: .6; transition: opacity var(--duration), filter var(--duration); }
.flow-node.is-current { opacity: 1; filter: drop-shadow(0 0 13px #69c7f92c); }
.flow-pulse { animation: flow-travel 3s linear infinite; }
.signal-trace { stroke-dasharray: 150; animation: signal-draw 5s ease-in-out infinite; }
.system-panel.is-paused :is(.flow-pulse, .signal-trace) { animation-play-state: paused; }
@keyframes flow-travel { to { stroke-dashoffset: -126; } }
@keyframes signal-draw { 0%, 10% { stroke-dashoffset: 150; } 60%, 100% { stroke-dashoffset: 0; } }
.flow-stages { position: relative; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--flow-column-gap); }
.flow-stages button { display: flex; flex-direction: column; min-width: 0; background: none; color: #bdb8d3; border: 0; padding: 0; text-align: center; font: 400 13px/1.4 var(--font-ui); transition: color var(--duration); }
.flow-art { display: block; width: 100%; height: var(--flow-art-height); }
.flow-art svg { display: block; width: 100%; height: 100%; color: white; }
.flow-label { display: block; width: 100%; flex: 1; border-top: 1px solid #ffffff25; padding: 12px 4px 7px; transition: border-color var(--duration); }
.flow-step-number { display: block; color: var(--accent); font-size: 10px; margin-bottom: 5px; }
.flow-stages button strong { font-weight: 400; overflow-wrap: break-word; }
.flow-stages button[aria-pressed=true] { color: white; }
.flow-stages button[aria-pressed=true] .flow-label { border-color: var(--accent); }
.flow-stages button:hover { color: white; }
.stage-detail { display: grid; grid-template-columns: 32px 1fr; gap: 13px; padding: 17px 0 8px; margin-top: 12px; border-top: 1px solid #ffffff22; min-height: 112px; }
.stage-detail > span { display: grid; place-items: center; align-self: start; width: 30px; height: 30px; border: 1px solid #ffffff35; border-radius: 50%; font-size: 11px; color: var(--accent); }
.stage-detail h3 { font: 500 16px/1.4 var(--font-ui); color: white; margin-bottom: 5px; }
.stage-detail p { font-size: 14px; line-height: 1.6; color: #c5c0d8; max-width: 650px; }
.studio .system-caption { font-size: 11px; color: #aea8c6; margin-top: 6px; }
.workspace-disclosure { margin-top: 12px; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.workspace-disclosure > summary { display: flex; justify-content: space-between; gap: 18px; align-items: center; list-style: none; padding: 15px 20px; color: var(--brand); }
.workspace-disclosure > summary::-webkit-details-marker, .project-system-picker > summary::-webkit-details-marker { display: none; }
.workspace-disclosure summary strong { font-weight: 500; }
.workspace-disclosure summary small { display: block; font-size: 13px; color: var(--muted); margin-top: 2px; }
.disclosure-mark { display: inline-block; font-size: 24px; line-height: 1; transition: transform var(--duration); }
.workspace-disclosure[open] > summary .disclosure-mark { transform: rotate(45deg); }
.dilution-lab { background: var(--surface-soft); }
.lab-body { padding: 8px 20px 20px; }
.lab-console { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; }
.lab-controls > label, .ratio-label { display: flex; justify-content: space-between; font-size: 14px; color: var(--brand); gap: 15px; }
.lab-controls > label span { color: var(--muted); }
.lab-controls input[type=number] { width: 100%; font-size: 24px; color: var(--brand); border: 0; border-bottom: 1px solid var(--border); padding: 8px 0; background: transparent; border-radius: 0; margin: 0 0 18px; }
.ratio-label output { font-weight: 500; }
.lab-controls input[type=range] { width: 100%; margin: 15px 0; accent-color: var(--brand); cursor: pointer; }
.ratio-presets { display: flex; gap: 8px; }
.ratio-presets button { padding: 5px 10px; background: white; border: 1px solid var(--border); border-radius: var(--radius-pill); color: var(--muted); font-size: 12px; }
.ratio-presets button[aria-pressed=true] { background: var(--brand); color: white; border-color: var(--brand); }
.lab-result { padding-left: 28px; border-left: 1px solid var(--border); }
.lab-result .studio-eyebrow { display: block; margin-bottom: 10px; }
.lab-result > div { display: flex; align-items: baseline; gap: 10px; line-height: 1; color: var(--brand); }
.lab-result output { font-size: clamp(38px, 4vw, 58px); font-variant-numeric: tabular-nums; letter-spacing: -.05em; overflow-wrap: anywhere; }
.lab-result > div > span { font-size: 16px; color: var(--muted); }
.lab-result p, .studio .lab-caption { font-size: 12px; color: var(--muted); margin-top: 12px; }
.lab-result #mixing-equation { font-size: 15px; color: var(--brand); }
#lab-error { grid-column: 1/-1; }
#lab-error:empty { display: none; }
#lab-error:not(:empty) { font-size: 14px; color: #9b3434; }
.system-notes-body { padding: 0 20px 20px; color: var(--muted); font-size: 15px; }
.system-notes-body dl { display: grid; grid-template-columns: 130px 1fr; gap: 10px 20px; }
.system-notes-body dd { margin: 0; }
.system-notes-body a { color: var(--brand); text-decoration: underline; text-underline-offset: 4px; }
.studio-button { display: inline-flex; align-items: center; justify-content: center; padding: 12px 22px; border: 1px solid var(--brand); border-radius: var(--radius-pill); background: var(--brand); color: white !important; font: 500 15px/1.4 var(--font-ui) !important; text-decoration: none; transition: background var(--duration); }
.studio-button:hover { background: var(--brand-dark); }
.studio-button:disabled { cursor: default; opacity: .45; }
.instrument-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.instrument-filters button { padding: 8px 16px; border: 1px solid var(--border); background: white; border-radius: var(--radius-pill); font-size: 14px; color: var(--brand); transition: background var(--duration); }
.instrument-filters button[aria-pressed=true] { background: var(--brand); border-color: var(--brand); color: white; }
.instrument-filters span { margin-left: 5px; opacity: .7; font-size: 12px; }
.instrument-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; align-items: stretch; }
.instrument-card { min-width: 0; border: 1px solid var(--border); border-radius: 10px; background: white; padding: 20px; display:flex;flex-direction:column;transition: border-color var(--duration); }
.instrument-card:hover { border-color: var(--brand); }
.instrument-card:has([data-compare][aria-pressed=true]) { border-color: var(--brand); }
.instrument-summary { display: grid; grid-template-columns: 95px 1fr; gap: 15px; align-items: center; min-height: 88px; }
.instrument-picture { display: block; width: 95px; height: 85px; object-fit: contain; transition: transform .5s var(--ease); }
.instrument-card:hover .instrument-picture { transform: scale(1.04); }
.instrument-card .studio-eyebrow { font-size: 12px; margin-bottom: 6px; }
.instrument-card h3 { font-size: 25px; font-weight: 400; line-height: 1.2; color: var(--brand); }
.studio .instrument-measurements { font-size: 14px; color: var(--muted); min-height: 46px; margin: 14px 0 8px; }
.instrument-details summary { color: var(--brand); font-size: 14px; list-style:none; }
.instrument-details summary::-webkit-details-marker,.brief-more summary::-webkit-details-marker { display:none; }
.instrument-details > summary::after,.brief-more > summary::after { content:" +"; }
.instrument-details[open] > summary::after,.brief-more[open] > summary::after { content:" −"; }
.instrument-details dl { display: grid; grid-template-columns: 1fr; gap: 5px; margin: 12px 0; font-size: 14px; }
.instrument-details dt { color: var(--muted); }
.instrument-details dd { margin: 0 0 9px; }
.instrument-details a { color: var(--brand); font-size: 14px; text-decoration: underline; }
.instrument-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top:18px; }
.instrument-actions button { font: 400 14px/1.5 var(--font-ui); padding: 9px 12px; min-height:40px; border: 1px solid var(--border); border-radius: var(--radius-pill); background: white; color: var(--brand); }
.instrument-actions button[aria-pressed=true] { background: var(--surface-soft); border-color: var(--brand); }
.instrument-actions button[data-compare][aria-pressed=true] { background: var(--brand); color: white; }
.studio .studio-footnote { font-size: 13px; color: var(--muted); margin-top: 20px; }
.studio-footnote a { text-decoration: underline; text-underline-offset: 3px; }
.studio-live { font-size: 14px; color: var(--brand); margin-top: 14px !important; }
.studio-live:empty { display: none; }
.compare-tray { position: sticky; bottom: 18px; display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-top: 24px; padding: 14px 20px; background: white; border: 1px solid var(--border); border-radius: 12px; box-shadow: 0 8px 30px #1c18421b; z-index: 10; }
.compare-tray > div:last-child { display: flex; gap: 18px; align-items: center; }
.compare-tray p { font-size: 14px; }
.compare-tray > div > span { font-size: 13px; color: var(--muted); }
#clear-comparison { border: 0; background: transparent; font-size: 14px; color: var(--muted); }
.project-layout { display: grid; grid-template-columns: minmax(260px, .8fr) minmax(0, 1.2fr); gap: 40px; align-items: start; }
.project-summary { padding: 24px; border-radius: 10px; background: var(--surface-soft); min-width: 0; }
.project-system-picker { margin-bottom: 28px; }
.project-system-picker > summary { display: flex; justify-content: space-between; gap: 15px; list-style: none; padding: 12px 14px; border: 1px solid var(--border); border-radius: var(--radius); background: white; color: var(--brand); }
.project-system-picker strong { font-size: 16px; font-weight: 400; }
.brief-form fieldset { border: 0; margin: 12px 0 0; padding: 0; }
.brief-topics { display: grid; gap: 6px; }
.brief-topics label { display: flex; gap: 10px; align-items: center; font-size: 14px; padding: 9px 10px; border-radius: var(--radius); background: white; cursor: pointer; }
.brief-topics input { accent-color: var(--brand); }
.project-list-heading { display: flex; justify-content: space-between; gap: 20px; align-items: center; padding-bottom: 15px; border-bottom: 1px solid var(--border); }
.project-list-heading h3 { font-size: 17px; font-weight: 400; color: var(--brand); }
.project-list-heading > span { font-size: 13px; color: var(--muted); }
.project-list-panel ul { margin: 0; padding: 0; list-style: none; }
.project-list-panel li { display: grid; grid-template-columns: 48px 1fr auto; gap: 12px; align-items: center; padding: 14px 0; border-bottom: 1px solid var(--border); }
.project-list-panel img { width: 48px; height: 45px; object-fit: contain; mix-blend-mode: multiply; }
.project-list-panel li span { font-size: 14px; line-height: 1.4; overflow-wrap: anywhere; }
.project-list-panel button { border: 0; background: none; padding: 10px 0; font-size: 12px; color: var(--muted); }
.project-empty { font-size: 14px; color: var(--muted); padding: 20px 0; }
.brief-include { display: flex; gap: 9px; align-items: baseline; margin-top: 18px; font-size: 13px; color: var(--muted); cursor: pointer; }
.brief-include input { accent-color: var(--brand); }
.brief-field { display: block; color: var(--brand); font-size: 15px; margin-bottom: 20px; }
.brief-field input, .brief-field textarea { display: block; width: 100%; margin-top: 8px; padding: 12px 14px; border: 1px solid var(--border); border-radius: var(--radius); background: white; color: var(--text); font-size: 16px; line-height: 1.5; }
.brief-field textarea { resize: vertical; }
.brief-more { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 15px 0; margin: 6px 0 24px; }
.brief-more summary { font-size: 15px; color: var(--brand); list-style:none; }
.brief-more summary span { float: right; color: var(--muted); font-size: 12px; }
.brief-more[open] summary { margin-bottom: 20px; }
.studio .brief-privacy { font-size: 12px; color: var(--muted); margin-top: 12px; }
.brief-status { font-size: 14px; color: var(--brand); margin-top: 14px !important; }
.brief-status:empty { display: none; }
.comparison-dialog { width: min(1150px, calc(100% - 40px)); max-height: 88dvh; border: 1px solid var(--border); border-radius: var(--radius-panel); background: white; color: var(--text); padding: 28px;box-shadow:var(--shadow-dialog); }
.comparison-dialog::backdrop { background: #1c184299; backdrop-filter: blur(6px); }
.comparison-top { display: flex; justify-content: space-between; align-items: start; gap: 24px; margin-bottom: 25px; }
.comparison-top h2 { font-size: 30px; }
.comparison-top .studio-eyebrow { margin-bottom: 8px; }
.comparison-top > button { background: white; border: 1px solid var(--border); border-radius: var(--radius-pill); padding: 10px 18px; color: var(--brand); font-size: 14px; }
.comparison-scroll { overflow: auto; overscroll-behavior: contain; }
.comparison-scroll table { width: 100%; border-collapse: collapse; table-layout: fixed; font-size: 14px; min-width: 600px; }
.comparison-scroll th, .comparison-scroll td { padding: 17px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--border); border-right: 1px solid var(--border); overflow-wrap: break-word; }
.comparison-scroll tr > :last-child { border-right: 0; }
.comparison-scroll tbody tr:nth-child(odd) { background: var(--surface-soft); }
.comparison-scroll th { font-weight: 500; color: var(--brand); width: 160px; }
.comparison-scroll thead th:not(:first-child) { width: auto; font-size: 28px; font-weight: 400; }
.comparison-scroll img { width: 100%; height: 110px; object-fit: contain; display: block; margin-bottom: 12px; }
.comparison-scroll thead a { display: block; font-size: 12px; text-decoration: underline; margin-top: 10px; }
.comparison-scroll td button { padding: 10px 14px; font-size: 12px; border: 1px solid var(--brand); border-radius: var(--radius-pill); background: white; color: var(--brand); }
@media (max-width: 1100px) {
  .studio-container { width: calc(100% - 48px); }
  .explorer-layout { --system-padding-top: 22px; grid-template-columns: 185px minmax(0, 1fr); gap: 20px; }
  .workspace-panel { padding: 22px; }
  .system-panel { padding: var(--system-padding-top) 20px 16px; }
  .system-picker button { font-size: 14px; padding: 12px 8px; }
  .instrument-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .project-layout { gap: 24px; }
  .workspace-hint { display: none; }
}
@media (max-width: 800px) {
  .studio-intro { display: block; }
  .studio-intro > p { margin-top: 12px; }
  .studio-intro > p br { display: none; }
  .workspace-tabs { gap: 8px; }
  .workspace-bar { padding-inline: 22px; }
  .explorer-layout { grid-template-columns: 1fr; }
  .explorer-sidebar { padding: 0; }
  .system-picker { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .system-picker button { padding: 10px; font-size: 13px; }
  .studio .picker-hint { display: none; }
  .project-layout { grid-template-columns: 1fr; }
  .project-summary { padding: 20px; }
  .project-system-picker { margin-bottom: 20px; }
}
@media (max-width: 520px) {
  .studio-container { width: calc(100% - 24px); }
  .studio-intro { padding: 28px 7px 22px; }
  .studio-intro > p { font-size: 14px; }
  .workspace-bar { padding: 0 14px; }
  .workspace-tabs { gap: 5px; width: 100%; justify-content: space-between; }
  .workspace-tabs > button { font-size: 14px; min-height: 44px; padding:9px 12px; gap: 5px; }
  .workspace-tabs > button > span:first-child { display: none; }
  .workspace-panel { padding: 16px; }
  .system-picker { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4px; }
  .system-panel { padding: 20px 14px 16px; }
  .system-panel-heading { gap: 10px; }
  .system-panel-heading h2 { font-size: 24px; }
  .motion-toggle { font-size: 10px !important; padding: 7px; }
  .system-diagram { --flow-art-height: 140px; --flow-column-gap: 6px; }
  .flow-stages button { font-size: 11px; padding-inline: 0; }
  .stage-detail { gap: 10px; }
  .stage-detail p { font-size: 13px; }
  .workspace-disclosure > summary { padding: 14px; font-size: 14px; }
  .lab-body { padding: 6px 14px 18px; }
  .lab-console { grid-template-columns: 1fr; gap: 22px; }
  .lab-result { padding: 18px 0 0; border-left: 0; border-top: 1px solid var(--border); }
  .lab-result output { font-size: 48px; }
  .system-notes-body { padding-inline: 14px; }
  .system-notes-body dl { grid-template-columns: 1fr; gap: 5px; }
  .system-notes-body dd { margin-bottom: 12px; }
  .workspace-heading h2 { font-size: 25px; }
  .workspace-heading p { font-size: 14px; }
  .instrument-grid { grid-template-columns: 1fr; }
  .instrument-filters { gap: 6px; }
  .instrument-filters button { padding: 7px 12px; font-size: 13px; }
  .compare-tray { padding: 12px; gap: 12px; flex-wrap: wrap; bottom: 12px; }
  .compare-tray > div:last-child { flex: 1; justify-content: flex-end; gap: 12px; }
  .compare-tray .studio-button { font-size: 13px !important; padding: 10px 14px; }
  .compare-tray > div > span { display: none; }
  .comparison-dialog { width: calc(100% - 20px); padding: 20px; }
  .comparison-top h2 { font-size: 25px; }
  .comparison-top > button { font-size: 12px; white-space: nowrap; padding: 8px 12px; }
  .brief-more summary { font-size: 14px; }
  .brief-more summary span { float: none; margin-left: 5px; }
}
@media (prefers-reduced-motion: reduce) {
  .studio * { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
  .flow-node { filter: none; }
}

.system-panel :focus-visible{outline-color:var(--accent)}
.flow-feedback{position:relative;height:32px;margin-bottom:8px;text-align:center;font-size:10px;color:#b9dcee}.flow-feedback svg{position:absolute;inset:0;width:100%;height:32px}.flow-feedback span{position:relative;padding:0 12px;background:var(--brand-dark)}
.instrument-context{font-size:14px;color:var(--muted);margin-bottom:18px!important}.studio #instrument-empty{padding:24px;background:var(--surface-soft);border:1px solid var(--border);border-radius:var(--radius)}
.requested-instrument{padding:16px;background:var(--surface-soft);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:22px}.requested-instrument p{font-size:14px}.requested-instrument button{border:0;background:none;color:var(--brand);padding:10px 0;font-size:13px}

.project-system-picker > summary::after{content:"+";font-size:20px}.project-system-picker[open] > summary::after{content:"−"}