:root{color-scheme:dark;--bg:#06090e;--ink:#e4e7ec;--muted:#8994a5;--dim:#526072;--line:rgba(153,179,207,.17);--accent:#bce4cd;--panel:rgba(10,16,24,.9);--blue:#87a5c1;--amber:#b9a78c;--red:#b88787;font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;font-size:12px}
*{box-sizing:border-box}html{background:var(--bg);scroll-behavior:smooth}body{margin:0;min-width:320px;background:radial-gradient(circle at 50% 10%,#101a27 0,transparent 34rem),var(--bg);color:var(--ink)}button,input{font:inherit}button{color:var(--ink);background:#121d29;border:1px solid var(--line);border-radius:4px;padding:10px 13px;cursor:pointer;transition:background .15s,border-color .15s,color .15s}button:hover{background:#1c2b3b;border-color:#70869b}button:focus-visible,a:focus-visible,input:focus-visible,.process-tile:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.primary{background:var(--accent);color:#10281c;border-color:var(--accent);font-weight:700}.quiet{background:transparent}.wide{width:100%}a{color:var(--accent)}
.atlas-shell{width:min(1800px,100%);margin:auto;padding:0 clamp(14px,2.5vw,38px) 30px}.topbar{min-height:92px;display:flex;align-items:center;gap:28px;border-bottom:1px solid var(--line)}.home{color:var(--ink);text-decoration:none;font-size:15px;font-weight:700}.home span{color:var(--muted)}.home i{color:var(--dim);font-style:normal;margin-left:20px}.identity h1{font-size:17px;letter-spacing:3px;font-weight:500;margin:0 0 5px}.identity p,.eyebrow{margin:0;color:var(--muted);font-size:9px;letter-spacing:1.4px;text-transform:uppercase}.top-actions{margin-left:auto;display:flex;align-items:center;gap:18px}.run-state{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:9px;letter-spacing:1px}.run-state i{width:5px;height:5px;border-radius:50%;background:var(--accent);box-shadow:0 0 9px #a0e2bc60}.run-state.paused i{background:var(--dim);box-shadow:none}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:6px;backdrop-filter:blur(14px)}.time-control{position:sticky;top:10px;z-index:30;margin:24px 0 15px;padding:17px 20px;display:grid;grid-template-columns:auto minmax(280px,1fr) minmax(190px,auto);gap:24px;align-items:center;box-shadow:0 12px 32px #02050b99}.transport{display:flex;gap:7px}.transport button{width:42px;height:42px;padding:0}.transport .primary{font-size:15px}.transport #accelerate{width:auto;min-width:74px;padding-inline:10px;font-size:9px;letter-spacing:.7px}.transport #accelerate span{font-size:14px;margin-right:3px}.transport #accelerate[aria-pressed="true"]{color:#10281c;background:var(--accent);border-color:var(--accent);box-shadow:0 0 18px #a0e2bc35}.rate-control{border-inline:1px solid var(--line);padding-inline:24px}.rate-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:10px}.rate-heading label{font-size:8px;letter-spacing:1.5px;color:var(--muted)}.rate-heading output{font-variant-numeric:tabular-nums}.rate-rail{position:relative}.rate-control input{display:block;width:100%;accent-color:var(--accent);height:18px;margin:8px 0 1px}.scale-break{position:absolute;left:50%;top:9px;transform:translate(-50%,-50%);pointer-events:none;padding:0 4px;background:#0a1018;color:var(--amber);font-size:11px;letter-spacing:-2px}.scale-labels{position:relative;height:12px;color:var(--dim);font-size:8px}.scale-labels span{position:absolute;top:0;white-space:nowrap}.scale-min{left:0}.scale-one{left:21.05%;transform:translateX(-50%)}.scale-jump{left:50%;transform:translateX(-50%);color:var(--amber)}.scale-max{right:0}.shortcut-hint{margin-top:5px;text-align:center;color:var(--muted);font-size:8px}.focus-readout{display:grid;gap:3px}.section-label{font-size:8px;letter-spacing:1.3px;color:var(--muted)}.focus-readout strong{font-size:12px;font-weight:500}.focus-readout>span:last-child{font-size:9px;color:var(--muted)}
.legend{display:flex;justify-content:center;gap:28px;flex-wrap:wrap;color:var(--muted);font-size:9px;margin:0 0 15px}.legend span{display:flex;align-items:center;gap:7px}.state-dot{width:6px;height:6px;border-radius:50%}.state-dot.blurred{background:var(--amber)}.state-dot.readable{background:var(--accent);box-shadow:0 0 9px #a0e2bc55}.state-dot.frozen{border:1px solid var(--dim)}
.tile-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.process-tile{position:relative;min-width:0;overflow:hidden;background:#0a1018;border:1px solid var(--line);border-radius:5px;transition:border-color .18s,background .18s,opacity .18s;cursor:pointer}.process-tile:hover{border-color:#536779;background:#0d1621}.process-tile[data-motion="readable"]{border-color:#729c8788;background:#0c151d}.process-tile[data-motion="frozen"] canvas{opacity:.76}.process-tile header{position:absolute;z-index:2;inset:9px 10px auto;display:flex;justify-content:space-between;pointer-events:none;color:#8fa1b4;font-size:10px;letter-spacing:.7px}.process-tile .state{text-transform:uppercase}.process-tile[data-motion="readable"] .state{color:var(--accent)}.process-tile[data-motion="blurred"] .state{color:var(--amber)}.process-tile canvas{display:block;width:100%;aspect-ratio:16/9;background:#080e16;transition:opacity .18s}.tile-copy{min-height:172px;padding:16px 17px 17px;border-top:1px solid var(--line)}.tile-copy h2{font-family:system-ui,sans-serif;font-size:19px;line-height:1.25;font-weight:430;letter-spacing:-.15px;margin:0 0 7px}.period{color:#c1cad5;font-size:12px;margin:0 0 10px;min-height:30px}.fact{color:var(--muted);font-size:12px;line-height:1.6;margin:0;min-height:58px}.evidence{display:inline-block;margin-top:8px;color:var(--dim);font-size:10px;letter-spacing:.8px;text-transform:uppercase}
.clock-tile{cursor:default;grid-column:auto;grid-row:auto;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:20px;background:radial-gradient(circle at center,#172536 0,#0a1018 69%);border-color:#61758780}.clock-tile:hover{background:radial-gradient(circle at center,#172536 0,#0a1018 69%)}.digital-clock{display:flex;align-items:baseline;justify-content:center;margin:22px 0 5px;font-size:clamp(24px,2vw,36px);font-variant-numeric:tabular-nums;letter-spacing:-1px;white-space:nowrap}.digital-clock b{font-weight:400;color:#8092a5;margin:0 2px}.digital-clock small{font-size:.72em;color:#b5c1d0}.digital-clock.fast span,.digital-clock.fast b,.digital-clock.fast small{filter:blur(2px);opacity:.65}.clock-scale{font-size:8px;letter-spacing:1px;color:var(--muted)}.elapsed-scientific{font-size:10px;color:var(--accent);margin-top:15px;font-variant-numeric:tabular-nums}.clock-rule{height:1px;width:100%;background:var(--line);margin:17px 0}.clock-tile p{color:var(--muted);font-size:12px;line-height:1.55;margin:0 0 13px}
footer{min-height:62px;display:flex;align-items:center;justify-content:space-between;gap:20px;color:var(--muted);font-size:9px}.text-button{border:0;background:transparent;color:var(--accent);padding:10px 0}.text-button:hover{background:transparent;text-decoration:underline}
dialog{background:#101923;color:var(--ink);border:1px solid #53677970;border-radius:10px;width:min(720px,calc(100vw - 28px));max-height:calc(100dvh - 40px);padding:30px;box-shadow:0 30px 120px #0009;scrollbar-width:thin}dialog::backdrop{background:#02050bd8;backdrop-filter:blur(7px)}.dialog-top{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}.dialog-top h2{font-family:system-ui,sans-serif;font-size:30px;font-weight:400;letter-spacing:-1px;margin:10px 0 18px}.close{padding:1px 9px;font-size:25px;background:transparent}dialog p,dialog td,dialog th{font-size:11px;line-height:1.75;color:#aeb9c8}dialog h3{font-size:12px;font-weight:500;margin:25px 0 8px}.sources-dialog{width:min(1080px,calc(100vw - 28px))}.source-table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse}th{text-align:left;color:var(--muted);font-weight:400;letter-spacing:.7px}th,td{padding:10px;border-bottom:1px solid var(--line);vertical-align:top}td:first-child{color:var(--ink);min-width:160px}td:nth-child(2){white-space:nowrap;font-variant-numeric:tabular-nums}.source-class{color:var(--dim);text-transform:uppercase;font-size:8px;letter-spacing:.7px}.source-scope{display:block;margin-bottom:5px}.noscript{position:fixed;inset:20%;z-index:10;background:#121d29;border:1px solid var(--line);padding:30px}
.spectrum-label{display:block;margin:5px auto 0;padding:3px 7px;border-color:transparent;background:transparent;font-size:9px;color:var(--muted)}
.visible-spectrum{--accent:var(--spectrum-color)}
.visible-spectrum .time-control{border-color:var(--spectrum-color);box-shadow:0 7px 30px #02050b99,inset 0 2px 14px color-mix(in srgb,var(--spectrum-color) 12%,transparent)}
.visible-spectrum .spectrum-label{color:var(--spectrum-color)}
.visible-spectrum .process-tile[data-id="visible-light"]{border-color:var(--spectrum-color)}
@media(max-width:1250px){.time-control{grid-template-columns:auto 1fr}.focus-readout{grid-column:2}.rate-control{border-right:0;padding-right:0}}
@media(max-width:1180px){.tile-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:850px){.top-actions .run-state{display:none}}
@media(max-width:700px){.atlas-shell{padding-inline:10px}.topbar{min-height:72px;gap:10px}.home i,.top-actions .quiet{display:none}.identity h1{font-size:13px;letter-spacing:2px}.identity p{font-size:7px}.time-control{top:5px;grid-template-columns:1fr;margin-top:14px;padding:11px 12px;gap:9px}.transport{justify-content:center}.transport button{width:36px;height:36px}.transport #accelerate{min-width:68px}.rate-control{border:0;border-top:1px solid var(--line);padding:9px 0 0}.focus-readout{display:none}.rate-heading{align-items:flex-start;flex-direction:column;gap:4px}.shortcut-hint{display:none}.legend{justify-content:flex-start;gap:10px}.tile-grid{grid-template-columns:1fr}.clock-tile{grid-column:auto;min-height:300px}.tile-copy{min-height:142px}.fact{min-height:56px}dialog{padding:22px 18px}.dialog-top h2{font-size:25px}}
@media(max-width:390px){.tile-grid{grid-template-columns:1fr}.clock-tile{grid-column:1}.process-tile canvas{aspect-ratio:16/9}.tile-copy{min-height:0}.period,.fact{min-height:0}.fact{margin-top:7px}footer{align-items:flex-start;flex-direction:column;padding-top:16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Shared elapsed clock remains with the rate controls, outside the tile grid. */
.time-control{grid-template-columns:auto minmax(260px,1fr) minmax(205px,230px)}
.top-clock{text-align:center;position:relative}.top-clock .section-label{font-size:8px;letter-spacing:.7px}.top-clock .digital-clock{font-size:27px;margin:5px 0 3px}.top-clock .elapsed-scientific{font-size:10px;margin:0}.top-clock .text-button{font-size:9px;padding:5px 0 0}.focus-readout{display:flex;justify-content:center;align-items:center;gap:6px;margin-top:6px}.focus-readout strong{font-size:10px}.focus-readout .section-label{font-size:7px}.focus-readout>span:last-child{font-size:8px}
@media(max-width:1100px){.time-control{grid-template-columns:1fr auto;gap:12px}.transport{grid-column:1;grid-row:1}.top-clock{grid-column:2;grid-row:1;min-width:210px}.rate-control{grid-column:1/-1;grid-row:2;border:0;border-top:1px solid var(--line);padding:10px 0 0}.focus-readout{grid-column:auto}}
@media(max-width:700px){.time-control{grid-template-columns:1fr;gap:8px}.transport{grid-column:1;grid-row:2}.top-clock{grid-column:1;grid-row:1;display:grid;grid-template-columns:1fr auto;align-items:center;gap:2px 8px;text-align:left}.top-clock .section-label{grid-column:1}.top-clock .digital-clock{grid-column:1;grid-row:2;justify-content:flex-start;font-size:23px;margin:0}.top-clock .elapsed-scientific{grid-column:2;grid-row:2;font-size:8px}.top-clock .text-button{grid-column:2;grid-row:1;text-align:right;padding:0}.rate-control{grid-column:1;grid-row:3}.focus-readout{display:flex}.focus-readout>span:last-child{display:none}}