@layer theme{:root,:host{--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color 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optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.visible{visibility:visible}.block{display:block}.grid{display:grid}}:root{--bg:#0a0f13;--surface:#10191f;--surface2:#131f25;--line:#263840;--muted:#84979e;--text:#e5eef0;--cyan:#57c4d2;--mint:#97d4bd;--gold:#d8bf7a}*{box-sizing:border-box}html{background:var(--bg);scroll-behavior:smooth}body{background:radial-gradient(ellipse at 18% -12%,#18303a 0,transparent 40%),var(--bg);color:var(--text);margin:0;font-family:Arial,Helvetica,sans-serif;font-size:14px;line-height:1.5}button,input,select{font:inherit}button,select{color:inherit}button{cursor:pointer}.app-shell{max-width:1600px;margin:auto;padding:0 36px 25px}.topbar{border-bottom:1px solid #23343b;justify-content:space-between;align-items:center;height:88px;display:flex;position:relative}.brand{align-items:center;gap:12px;display:flex}.brand-mark{background:#13242a;border:1px solid #477780;border-radius:10px;place-items:center;width:36px;height:36px;display:grid}.brand-mark svg{fill:none;stroke:#80d4dd;stroke-width:1.6px;width:25px}.brand h1{letter-spacing:-.02em;margin:0;font-size:17px;font-weight:600}.brand p{color:var(--muted);margin:2px 0 0;font-size:12px}.top-actions{align-items:center;gap:18px;display:flex}.pause-button,.lang-switch button{color:#b9c9cc;background:#111c21;border:1px solid #2b3e45;border-radius:7px;height:38px;padding:0 12px;font-size:12px}.pause-button{align-items:center;gap:9px;display:flex}.pause-button span{color:#79c7cd}.lang-switch{background:#10191e;border:1px solid #2b3e45;border-radius:7px;padding:3px;display:flex}.lang-switch button{background:0 0;border:0;height:30px;padding:0 10px}.lang-switch button[aria-pressed=true]{color:#b6edf0;background:#203740;border-radius:5px}.skip-link{color:#111;z-index:10;background:#fff;padding:10px;position:absolute;top:-100px;left:10px}.skip-link:focus{top:8px}.intro-line{letter-spacing:.11em;color:#9eb3b8;align-items:center;gap:9px;height:42px;font:10px ui-monospace,monospace;display:flex}.online-indicator,.status-mark{background:#79d4b4;border-radius:50%;width:7px;height:7px;box-shadow:0 0 9px #79d4b477}.divider{color:#50646a;padding:0 4px}.dashboard{grid-template-columns:minmax(0,1.6fr) minmax(360px,.9fr);align-items:stretch;gap:16px;display:grid}.panel{border:1px solid var(--line);background:linear-gradient(145deg,#131e24f7,#0d161bf7);border-radius:11px;box-shadow:0 12px 35px #00000014}.scene-panel{min-width:0;overflow:hidden}.scene-header,.section-title,.graph-header{justify-content:space-between;align-items:center;gap:12px;padding:18px 20px 0;display:flex}.scene-header h2,.section-title h2,.graph-header h2,.physics-panel h2,.experiment-panel h2{letter-spacing:-.015em;margin:3px 0 0;font-size:16px;font-weight:550}.eyebrow{letter-spacing:.13em;color:#7b969f;font:9px ui-monospace,monospace}.scene-status{color:#89c8ae;letter-spacing:.08em;align-items:center;gap:8px;font:9px ui-monospace,monospace;display:flex}.scene-canvas{width:100%;height:380px;position:relative}.scene-canvas canvas{touch-action:pan-y;display:block}.scene-loading{height:380px;color:var(--muted);place-items:center;font-size:12px;display:grid}.scene-caption{color:#91a6ac;justify-content:space-between;padding:0 20px 10px;font-size:10px;display:flex}.scene-legend{color:#8ea1a6;letter-spacing:.08em;gap:20px;padding:0 20px 16px;font:9px ui-monospace,monospace;display:flex}.scene-legend span{align-items:center;gap:7px;display:flex}.scene-legend i{border-radius:50%;width:7px;height:7px;display:inline-block}.legend-water{background:#4bc6d8}.legend-mechanical{background:#d4be80}.legend-grid{background:#9dd6bb}.right-stack{flex-direction:column;gap:14px;min-width:0;display:flex}.output-panel{flex:1;padding:18px 19px}.output-main{justify-content:space-between;align-items:flex-end;margin:10px 0 14px;display:flex}.muted{color:#94a8ad;font-size:12px;display:block}.output-main strong{letter-spacing:-.04em;font-variant-numeric:tabular-nums;color:#dcf1eb;font-size:30px;font-weight:550;line-height:1.15}.live-dot{background:#73d8b0;border-radius:50%;width:7px;height:7px;margin-bottom:7px;box-shadow:0 0 10px #73d8b077}.metrics-grid{grid-template-columns:1fr 1fr;gap:14px 18px;display:grid}.metric-block h3{color:#80a5ad;letter-spacing:.08em;margin:0 0 6px;font-size:10px;font-weight:550}.metric{color:#98a9ae;justify-content:space-between;align-items:baseline;gap:6px;padding:3px 0;font-size:10px;display:flex}.metric strong{color:#dbe5e5;text-align:end;font-variant-numeric:tabular-nums;white-space:nowrap;font-size:11px;font-weight:550}.metric strong.accent{color:#81d6da}.metric small{color:#91a1a5;font-size:9px;font-weight:400}.tidal-readout{color:#9cb0b5;border-top:1px solid #26373d;align-items:center;gap:12px;margin-top:10px;padding-top:9px;font-size:11px;display:flex}.tidal-readout strong{color:#86d8db}.tidal-readout 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#32474e;border-radius:5px;width:100%;height:34px;margin-top:5px;padding:0 9px;font-size:11px}.tidal-controls{grid-column:span 2}.content-grid{grid-template-columns:minmax(0,1.15fr) minmax(350px,.85fr);gap:16px;margin-top:16px;display:grid}.left-stack{flex-direction:column;gap:16px;display:flex}.physics-panel,.experiment-panel,.graph-panel{padding:18px 20px}.physics-panel h2,.experiment-panel h2,.graph-header h2{margin-top:5px}.physics-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:15px;display:grid}.physics-grid article{border-inline-start:1px solid #36515a;padding-inline-start:12px}.note-index{color:#66bdc3;font:9px ui-monospace,monospace}.physics-grid h3{color:#cfdfdc;margin:5px 0;font-size:11px}.physics-grid p{color:#96a9ad;margin:0 0 8px;font-size:10px;line-height:1.55}.challenge-grid{grid-template-columns:1fr 1fr;gap:6px;margin-top:11px;display:grid}.challenge-grid button{text-align:start;color:#bccbcb;background:#111d22;border:1px solid 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0;font-size:10px;display:flex}.cause-dot{background:#70c7a5;border-radius:50%;flex:none;width:6px;height:6px}.footer{color:#74888d;letter-spacing:.035em;border-top:1px solid #203139;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:16px;padding:20px 2px 0;font:9px ui-monospace,monospace;display:flex}.footer>span:first-child{letter-spacing:0;font-family:Arial,Helvetica,sans-serif;font-size:10px}.footer>span:first-child:first-letter{color:#a1cfc2}@media (max-width:1050px){.app-shell{padding-inline:22px}.dashboard{grid-template-columns:minmax(0,1.15fr) minmax(310px,.85fr)}.scene-canvas{height:340px}.control-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.content-grid{grid-template-columns:1fr}.left-stack{grid-template-columns:1.1fr .9fr;display:grid}.graph-panel{min-height:240px}}@media (max-width:720px){.app-shell{padding-inline:14px}.topbar{height:76px}.brand-mark{width:32px;height:32px}.brand h1{font-size:15px}.brand p{font-size:10px}.top-actions{gap:7px}.pause-button{justify-content:center;width:39px;padding:0}.pause-button:not(:focus){font-size:0}.pause-button span{font-size:13px}.lang-switch button{padding:0 8px}.intro-line{height:37px;font-size:9px}.dashboard{grid-template-columns:1fr}.scene-canvas{height:295px}.right-stack{grid-template-columns:1fr;display:grid}.output-panel{padding:16px}.metrics-grid{gap:12px 16px}.controls-panel{padding-inline:14px}.controls-panel .section-title{align-items:flex-start}.control-grid{grid-template-columns:1fr 1fr;gap:9px}.control-group{padding:11px}.control-group h3{font-size:8px}.control-head{font-size:10px}.tidal-controls{grid-column:span 2}.content-grid{grid-template-columns:1fr}.left-stack{display:flex}.physics-grid{grid-template-columns:1fr;gap:12px}.physics-grid article{padding-inline-start:10px}.challenge-grid{grid-template-columns:1fr}.experiment-panel,.physics-panel,.graph-panel{padding:16px}.scene-legend{gap:13px}.scene-caption{padding-inline:14px;font-size:9px}.footer{font-size:8px}.footer>span{max-width:100%}}@media (max-width:380px){.brand p{max-width:155px}.brand h1{font-size:14px}.top-actions{gap:4px}.pause-button{height:36px}.dashboard{gap:11px}.scene-canvas{height:250px}.control-grid{grid-template-columns:1fr}.tidal-controls{grid-column:auto}.mode-toggle button{padding-inline:7px;font-size:10px}.scene-caption span:last-child{text-align:end;max-width:45%}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}:focus-visible{outline-offset:2px;outline:2px solid #79d8e0}