:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:#e7e8e4;background:#11171c;color-scheme:dark;--muted:#94a1a9;--line:#303b42;--accent:#dabd95}*{box-sizing:border-box}body{margin:0}main{max-width:1600px;margin:auto;padding:0 4vw}header{display:flex;align-items:center;gap:55px;min-height:137px;border-bottom:1px solid var(--line)}.eyebrow{font-size:10px;letter-spacing:.19em;color:var(--accent)}h1{font-size:43px;line-height:1.1;font-weight:450;letter-spacing:-.055em;margin:9px 0 0}h1 span{color:var(--accent)}header>p{font-size:14px;line-height:1.6;color:var(--muted);margin-top:30px}.quiet{margin-left:auto;color:var(--muted);border:0;background:none;font-size:13px}.quiet span{font-size:19px;margin-left:12px}button{font:inherit;cursor:pointer;color:inherit;background:transparent;border:1px solid var(--line);border-radius:4px;min-height:36px;font-size:12px;padding:6px 11px;transition:background .18s,border-color .18s}button:hover{background:#273139;border-color:#63737e}button:focus-visible,summary:focus-visible,canvas:focus-visible{outline:2px solid var(--accent);outline-offset:4px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 282px;gap:36px;padding-top:25px}.sculpture-area{min-width:0}.stage{position:relative;height:630px;max-height:71vh;min-height:500px;background:radial-gradient(ellipse at 49% 48%,#202e37 0,#182229 38%,#11171c 76%);overflow:hidden}canvas{display:block;width:100%;height:100%;cursor:grab;touch-action:none}canvas:active{cursor:grabbing}.stage-top,.stage-bottom{position:absolute;left:5px;right:5px;display:flex;justify-content:space-between;align-items:center;gap:12px;pointer-events:none}.stage-top{top:2px}.stage-top>span{font-size:10px;letter-spacing:.16em;color:#8999a3}.stage-top button{border:0;color:var(--muted);font-size:12px}.stage-top button span{margin-left:7px;color:var(--accent)}.stage-top button[aria-pressed=true]{color:var(--accent)}.stage-bottom{bottom:12px}.stage-bottom>span{font-size:12px;color:var(--muted)}.stage-bottom b{margin:0 6px;font-weight:400}.stage-bottom>div{display:flex;gap:6px}.stage-top button,.stage-bottom button{pointer-events:auto}.object-caption{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding:20px 5px 10px}.caption-label{font-size:9px;letter-spacing:.16em;color:#84959f}.object-caption p{font-size:13px;margin:8px 0;color:#c6cdd0}.object-caption p span{color:#5b6b74;margin:0 6px}.object-caption strong{font-weight:400;color:var(--accent)}aside{border-left:1px solid var(--line);padding:8px 0 0 26px}.panel-heading{display:flex;align-items:center;justify-content:space-between}.panel-heading h2{font-size:17px;font-weight:450;letter-spacing:-.015em;margin:0}.panel-heading>span{color:var(--accent);font-size:19px}.panel-intro{color:var(--muted);font-size:12px;line-height:1.5;margin:10px 0 32px}.field{margin-bottom:26px}.field>div{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;font-size:14px}.field output{color:var(--accent);font-size:12px;font-variant-numeric:tabular-nums}.field input{width:100%;margin:0;accent-color:var(--accent);height:14px;cursor:pointer}.field p{font-size:11px;line-height:1.5;color:var(--muted);margin:8px 0 0}.display-modes{border:0;padding:0;margin:28px 0 0}.display-modes legend{font-size:12px;color:var(--muted);margin-bottom:12px}.display-modes>div{display:flex;gap:5px}.display-modes button{flex:1}.display-modes button[aria-pressed=true]{color:#171b20;border-color:var(--accent);background:var(--accent)}footer{border-top:1px solid var(--line);margin-top:24px;padding:22px 0 35px;display:flex;justify-content:space-between;gap:35px;color:var(--muted);font-size:12px}footer>p{margin:0;line-height:1.6}details{width:51%;max-width:680px}summary{list-style:none;text-align:right;cursor:pointer;color:#d9dedf;font-size:13px}summary::-webkit-details-marker{display:none}summary>span{margin-left:20px;color:var(--accent)}.math{font-size:14px;line-height:1.8;margin-top:25px}.math h2{font-size:18px;font-weight:400;color:#e1e5e5}.math pre{font:13px/1.8 ui-monospace,monospace;color:var(--accent);white-space:pre-wrap;border-left:2px solid #7a6c58;padding-left:20px;margin:25px 0}.math-stats{display:flex;gap:25px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 0;margin:25px 0}.math-stats div{display:flex;flex-direction:column}.math-stats strong{font-size:22px;font-weight:400;color:#e5dfd4}.math-stats span{font-size:11px;color:var(--muted)}#status{position:absolute;left:15%;right:15%;top:46%;text-align:center;background:#182229;padding:20px;color:var(--accent);font-size:14px}[hidden]{display:none!important}@media(min-width:1450px){.stage{height:720px}}@media(max-width:1100px){main{padding:0 28px}.workspace{gap:20px;grid-template-columns:minmax(0,1fr) 250px}aside{padding-left:20px}.stage{min-height:480px}.object-caption{flex-wrap:wrap;gap:12px}.object-caption>div:last-child{display:none}.stage-bottom{align-items:flex-start;flex-direction:column}.stage-bottom>div{align-self:flex-end}header{gap:35px}}@media(max-width:780px){main{padding:0 21px}header{min-height:122px;gap:20px}h1{font-size:37px}header>p{display:none}.workspace{display:flex;flex-direction:column;gap:25px;padding-top:18px}.stage{height:540px;max-height:65vh;min-height:390px}.stage-bottom{align-items:center;flex-direction:row}.stage-bottom>span{font-size:10px}.stage-bottom button{font-size:11px;padding:6px 8px}.object-caption{padding-top:18px}.object-caption>div:last-child{display:block}.object-caption p{font-size:12px}aside{border-left:0;border-top:1px solid var(--line);padding:24px 0 0;display:grid;grid-template-columns:1fr 1fr;column-gap:30px}.panel-heading,.panel-intro{grid-column:1/-1}.panel-intro{margin:9px 0 26px}.field{margin-bottom:23px}.field p{font-size:12px}.display-modes{margin:0}.display-modes legend{margin-bottom:13px}footer{flex-direction:column;gap:21px}details{width:100%;max-width:none}summary{text-align:left}}@media(max-width:440px){.stage{height:420px;min-height:360px}.stage-top>span{font-size:9px}.stage-top button{font-size:11px}.stage-bottom{flex-direction:column;align-items:flex-start;gap:10px}.stage-bottom>div{align-self:flex-end}.object-caption>div:last-child{display:none}.field>div{font-size:14px}.field p{font-size:11px}.display-modes>div{flex-wrap:wrap}.display-modes button{padding:6px 8px;min-width:58px}.math-stats{gap:16px}.math-stats strong{font-size:19px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}
/* Surface wave instrument */
aside{display:block}.panel-tabs{display:flex;border-bottom:1px solid var(--line);gap:23px;margin:-7px 0 25px}.panel-tabs button{font-size:14px;border:0;border-radius:0;padding:10px 0 13px;color:var(--muted);min-width:49px}.panel-tabs button[aria-selected=true]{color:var(--accent);box-shadow:0 2px 0 var(--accent)}.wave-launch{display:flex;gap:8px}.wave-launch button{flex:1;font-size:13px;min-height:42px}.wave-launch button:first-child{background:var(--accent);color:#151c22;border-color:var(--accent)}#wave-status{font-size:12px;color:var(--muted);line-height:1.6;min-height:39px;margin:14px 0 9px}.wave-transport{display:flex;gap:6px}.wave-transport button{flex:1;min-height:32px}button:disabled{opacity:.4;cursor:default}.wave-legend{display:flex;align-items:center;gap:11px;font-size:10px;color:var(--muted);margin:24px 0 28px}.wave-legend>div{height:5px;flex:1;border-radius:4px;background:linear-gradient(90deg,#39bfd3,#b1a590,#e89147)}#wave-panel .panel-intro{margin-bottom:20px}#wave-panel .field{margin-bottom:22px}.wave-measures{border-top:1px solid var(--line);padding-top:17px}.wave-measures>div{display:flex;justify-content:space-between;gap:10px;font-size:12px;margin-bottom:11px;color:var(--muted)}.wave-measures strong{font-weight:400;color:var(--accent);font-variant-numeric:tabular-nums}#energy-plot{width:100%;height:50px;cursor:default;touch-action:auto}.wave-measures p{font-size:11px;color:var(--muted);line-height:1.65}.solver-readout{border-left:2px solid #54737e;display:flex;flex-direction:column;gap:9px;padding-left:17px;font-size:12px}.solver-readout b{font-weight:400;color:var(--accent);margin-left:8px}.math a{color:var(--accent)}@media(max-width:780px){#form-panel{display:grid;grid-template-columns:1fr 1fr;column-gap:30px}#wave-panel{display:grid;grid-template-columns:1fr 1fr;column-gap:28px}#wave-panel>.panel-heading,#wave-panel>.panel-intro,#wave-status,.wave-legend,.wave-measures{grid-column:1/-1}.wave-launch,.wave-transport{grid-column:1/-1}.wave-measures{margin-top:2px}#wave-panel .field:last-of-type{grid-column:1/-1}.panel-tabs{margin-bottom:26px}#wave-status{min-height:0}}@media(max-width:420px){.stage-bottom>span{font-size:10px}.wave-measures p{font-size:12px}}
/* Surface eigenmodes */
.panel-tabs{gap:18px}.panel-tabs button{font-size:13px}.spectrum-heading{display:flex;justify-content:space-between;font-size:9px;letter-spacing:.13em;color:var(--muted);margin-top:23px}#mode-spectrum{height:115px;display:flex;align-items:end;gap:3px;border-bottom:1px solid var(--line);padding-bottom:8px;margin-top:5px}.spectrum-mode{flex:1;min-width:0;border:0;min-height:0;height:100%;padding:0 1px;display:flex;flex-direction:column;justify-content:end;align-items:center;gap:9px;font-size:9px;color:var(--muted);font-variant-numeric:tabular-nums}.spectrum-bar{display:block;width:100%;max-width:14px;background:#475862;border-radius:2px 2px 0 0;transition:background .2s}.spectrum-mode:hover .spectrum-bar{background:#81949b}.spectrum-mode.selected{color:var(--accent)}.spectrum-mode.selected .spectrum-bar{background:var(--accent)}.spectrum-mode.secondary .spectrum-bar{background:#64b7c8}.spectrum-mode.selected.secondary .spectrum-bar{background:linear-gradient(90deg,var(--accent) 50%,#64b7c8 50%)}#mode-status{font-size:11px;color:var(--muted);min-height:34px;line-height:1.5;margin:12px 0 14px}.mode-selectors{display:grid;grid-template-columns:1fr 1fr;gap:12px}.mode-selectors label{display:block;font-size:11px;color:var(--muted);margin-bottom:7px}.mode-selectors select{width:100%;border:1px solid var(--line);background:#1a252c;border-radius:4px;color:var(--accent);font:inherit;font-size:13px;padding:9px 7px;cursor:pointer}.mode-selectors select:focus-visible{outline:2px solid var(--accent)}.mode-frequency{display:flex;gap:14px;margin:20px 0 26px}.mode-frequency>div{flex:1;display:flex;flex-direction:column;gap:6px}.mode-frequency strong{font-size:23px;font-weight:400;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:-.025em}.mode-frequency span{font-size:9px;color:var(--muted)}#resonance-panel .panel-intro{margin-bottom:0}#resonance-panel .field{margin-bottom:20px}.mode-pair{width:100%;min-height:34px}#mode-beat{font-size:11px;line-height:1.6;color:var(--muted);min-height:35px;margin:9px 0 17px}.mode-transport{display:flex;gap:8px}.mode-transport button{flex:1;font-size:12px;min-height:39px}.mode-transport button:first-child{background:var(--accent);color:#151c22;border-color:var(--accent)}.mode-inspection{border-top:1px solid var(--line);margin-top:19px;padding-top:15px;font-size:10px;color:var(--muted);display:flex;justify-content:space-between;gap:10px;line-height:1.5}.mode-inspection strong{font-weight:400;color:var(--accent);white-space:nowrap;font-variant-numeric:tabular-nums}.mode-note{font-size:11px;color:var(--muted);line-height:1.65;margin-top:-12px}#resonance-panel .wave-legend{margin:19px 0 26px}@media(min-width:1101px){.workspace{grid-template-columns:minmax(0,1fr) 304px}.sculpture-area{position:sticky;top:20px;align-self:start}}@media(max-width:780px){#resonance-panel{display:grid;grid-template-columns:1fr 1fr;gap:0 28px}#resonance-panel>.panel-heading,#resonance-panel>.panel-intro,.spectrum-heading,#mode-spectrum,#mode-status,.mode-selectors,.mode-frequency,.mode-pair,#mode-beat,.mode-transport,.mode-inspection,#resonance-panel>.wave-legend,.mode-note{grid-column:1/-1}.mode-frequency strong{font-size:26px}.spectrum-mode{font-size:10px}.spectrum-bar{max-width:26px}.mode-frequency{margin-top:18px}.mode-note{font-size:12px}#mode-status{min-height:20px}.panel-tabs{gap:26px}}