@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');
:root{color-scheme:dark;font-family:'DM Sans',system-ui,sans-serif;background:#101216;color:#edf0f3;--accent:#d8fa73;--muted:#a1a9b2;--line:#343a43;font-size:16px}*{box-sizing:border-box}body{margin:0;overflow:hidden}button,input,select{font:inherit}button{cursor:pointer;color:inherit;background:#252b33;border:1px solid var(--line);border-radius:5px;padding:8px 11px;font-size:14px}button:hover{border-color:var(--accent)}button:disabled{opacity:.4;cursor:default}button.active{border-color:var(--accent);color:var(--accent);background:#2c3429}button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:3px}header{height:62px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;border-bottom:1px solid var(--line);gap:16px}.brand{color:#fff;font-weight:700;font-size:24px;text-decoration:none;letter-spacing:.08em}.brand span{color:var(--accent);font-size:12px;margin-left:10px;letter-spacing:.12em}.room-label{font-family:'IBM Plex Mono',monospace;font-size:14px;color:var(--muted)}header button{background:transparent}main{height:calc(100dvh - 62px);display:grid;grid-template-columns:minmax(0,1fr) 336px;min-height:0}#stage{display:flex;flex-direction:column;min-width:0;min-height:0;background:#090b0e}.toolbar{display:flex;align-items:center;gap:14px;padding:10px 14px;border-bottom:1px solid #252b31;flex-wrap:wrap;min-height:57px;background:#15191e}.segmented{display:flex;gap:3px;border-right:1px solid var(--line);padding-right:14px}.segmented button{background:transparent;border-color:transparent}.segmented button.active{background:#343c45;border-color:#45515e;color:#fff}#editor-tools,#camera-tools{display:flex;gap:6px;flex-wrap:wrap}#camera-tools[hidden],#editor-tools[hidden]{display:none}.toolbar select{width:auto;max-width:240px;font-size:13px}.toolbar button{font-size:13px}#viewport{flex:1;position:relative;min-height:0;overflow:hidden;outline:none}canvas{display:block;touch-action:none}#loading{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:14px;color:var(--muted);z-index:4;background:#11151a}#loading strong{font-size:22px;color:#fff}.loader{width:32px;height:32px;border:2px solid #41493a;border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.floating-status{position:absolute;top:14px;left:16px;padding:7px 10px;background:#11161dd9;border:1px solid #343e49;border-radius:5px;font-size:12px;color:#cbd6e0;pointer-events:none;z-index:2}.view-tip{position:absolute;bottom:14px;left:16px;font-size:12px;line-height:1.65;color:#b9c4ce;background:#11161dbb;padding:7px 10px;pointer-events:none;z-index:2}.camera-strip{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 16px;min-height:46px;border-top:1px solid #2b323b;font-family:'IBM Plex Mono',monospace;font-size:11px;color:#a6b1bd}.camera-strip b{color:#dde4eb;font-weight:400}#inspector{overflow-y:auto;background:#191e25;border-left:1px solid var(--line);padding:0 17px 24px}.lights-panel{padding:18px 0;border-bottom:1px solid var(--line)}.panel-title{display:flex;align-items:center;justify-content:space-between}.panel-title h2{margin:0 0 12px;font-size:16px}.panel-title span{color:var(--muted);font-size:12px}.add-row{display:flex;gap:6px}.add-row select{flex:1;min-width:0}.add-row button{white-space:nowrap;background:#d8fa73;color:#171d0d;border:0}.light-actions{display:flex;gap:6px;margin-top:9px}.light-actions button{flex:1;font-size:13px}.light-row{display:flex;align-items:center;gap:8px;margin-top:8px;background:#11161d;border:1px solid var(--line);border-radius:5px;padding:3px}.light-row.selected{border-color:var(--accent);background:#252f25}.light-row .select-light{flex:1;background:transparent;border:0;text-align:left;padding:8px;min-width:0}.light-row small{display:block;color:var(--muted);font-size:11px;margin-top:3px}.toggle-light{width:32px;height:32px;padding:5px;background:transparent;border:0;color:var(--accent)}.light-row.off{opacity:.6}section.panel{padding:19px 0;border-bottom:1px solid var(--line)}.panel h2{font-size:15px;display:flex;align-items:center;justify-content:space-between;font-weight:600;margin:0 0 13px}.panel h2 span{font-size:12px;color:var(--muted);font-weight:400}.field{margin:15px 0}.field label{display:flex;justify-content:space-between;gap:8px;align-items:center;font-size:14px;margin-bottom:8px}.field output{font:12px 'IBM Plex Mono',monospace;color:#ccd5de}input[type=range]{width:100%;margin:0;height:16px;accent-color:var(--accent);cursor:pointer}input[type=number],input[type=text],select{width:100%;background:#0f141b;color:#edf2f7;border:1px solid #3c4652;border-radius:4px;padding:8px;font-size:14px}.pair,.triple{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.triple{grid-template-columns:repeat(3,minmax(0,1fr))}.hint{color:var(--muted);font-size:12px;line-height:1.6;margin:8px 0}.readouts{display:flex;gap:12px;background:#11161d;border:1px solid #303a45;border-radius:5px;padding:12px}.readouts>div{flex:1}.readouts span{display:block;color:var(--muted);font-size:11px}.readouts b{display:block;font:18px 'IBM Plex Mono',monospace;margin-top:4px}.preset-row{display:flex;gap:6px}.preset-row button{flex:1;font-size:12px;padding:7px 4px}details summary{font-size:14px;cursor:pointer;padding:10px 0;color:#d5dde6}.checkbox{display:flex;gap:7px;align-items:center;font-size:14px}input[type=checkbox]{accent-color:var(--accent)}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}dialog{width:calc(100% - 32px);max-width:740px;max-height:85dvh;overflow:auto;border:1px solid #43505d;border-radius:10px;background:#1a2028;color:#edf2f7;padding:28px;line-height:1.65}dialog::backdrop{background:#000b}dialog h2{font-size:23px}dialog h3{font-size:16px;color:var(--accent)}dialog p{font-size:14px;color:#bbc7d3}dialog a{color:var(--accent)}#method-close{float:right}.eyebrow{font-size:12px;letter-spacing:.1em;color:var(--accent)}#toast{position:fixed;bottom:65px;left:50%;transform:translateX(-50%);background:#303b48;color:white;border:1px solid #677785;border-radius:7px;padding:12px 18px;font-size:14px;z-index:20}#error{position:absolute;inset:20px;padding:25px;color:#ffd19c;background:#171b22;z-index:8}
@media(max-width:950px){main{grid-template-columns:minmax(0,1fr) 295px}#inspector{padding:0 12px 20px}.room-label{display:none}.toolbar{gap:8px;padding:8px}.camera-strip>span:nth-child(2){display:none}.toolbar button{font-size:12px;padding:7px}.view-tip{font-size:11px;max-width:95%;left:8px}}@media(max-width:650px){body{overflow:auto}header{padding:0 12px;height:58px}.brand{font-size:20px}.brand span{font-size:10px;margin-left:4px}header button{font-size:12px}main{display:block;height:auto}#stage{height:67dvh;min-height:450px}#inspector{border-left:0}.camera-strip>span:nth-child(2){display:inline;font-size:10px}.view-tip{font-size:10px}.toolbar{min-height:95px}.toolbar select{font-size:12px}#camera-tools{gap:4px}.floating-status{top:8px;font-size:11px}}

@media(min-width:651px){html,body{height:100%;overflow:hidden}body{position:fixed;inset:0}#inspector{min-height:0}}
#inspector{position:relative;contain:layout paint;overscroll-behavior:contain}.toolbar{position:relative}@media(min-width:651px){html,body{overflow:clip}}

.project-actions{display:flex;gap:7px;align-items:center;margin-left:auto}#save-status{font-size:11px;color:#99a793}#camera-monitor{position:absolute;border:1px solid #77808b;border-radius:3px;pointer-events:none;z-index:3;box-shadow:0 6px 20px #0008}#camera-monitor[hidden]{display:none}#camera-monitor span{position:absolute;bottom:100%;right:0;padding:5px 7px;font-size:10px;letter-spacing:.06em;color:#d9e2ed;background:#151b23e8;white-space:nowrap}header .room-label{display:none}@media(max-width:1000px){#save-status{display:none}header{gap:8px;padding:0 12px}header button{font-size:11px;padding:7px}header .brand{font-size:18px}.brand span{font-size:9px}}

canvas.measuring{cursor:crosshair}#ruler-panel{position:absolute;top:58px;left:16px;width:264px;z-index:4;background:#141d26f2;border:1px solid #54858f;border-radius:7px;padding:12px;box-shadow:0 8px 24px #0006}#ruler-panel[hidden]{display:none}.ruler-heading{display:flex;align-items:center;justify-content:space-between;color:#8eeaff;font-size:12px}.ruler-heading button{padding:0 6px;background:transparent;border:none;font-size:21px}#ruler-value{display:block;font-family:'IBM Plex Mono',monospace;font-size:22px;margin:10px 0}#ruler-meta{font-size:11px;color:#bac9d3}.ruler-shortcuts{display:flex;gap:5px;margin-top:13px}.ruler-shortcuts button{font-size:12px;padding:6px 8px}#ruler-instruction{font-size:11px;line-height:1.5;color:#b3c0ce;margin:10px 0 0}.ruler-point-label{position:absolute;z-index:3;color:#9aeaff;background:#132630dc;border:1px solid #52808b;border-radius:3px;padding:2px 5px;font-size:11px;pointer-events:none}.ruler-point-label[hidden]{display:none}

.actor-panel{border-top:1px solid #41505b}.actor-actions{display:flex;gap:6px;margin:10px 0}.actor-actions button{font-size:12px;flex:1}.actor-panel .hint{font-size:11px}

.ruler-point-label.selected{color:#d8fa73;border-color:#d8fa73}

.hall-panel{border-top:1px solid #426075}.hall-panel img{display:block;width:100%;height:auto;border-radius:4px;margin:12px 0}.hall-panel a{font-size:14px;color:var(--accent)}.hall-readout{font:12px 'IBM Plex Mono',monospace;color:#c9deea;line-height:1.6;padding:10px;background:#10202b;margin:12px 0}.hall-panel .hint{font-size:13px}.hall-panel .field label{font-size:13px}#render-mode{max-width:270px}.brand span{font-size:12px}@media(max-width:650px){header{height:auto;min-height:58px;flex-wrap:wrap;padding:8px 12px}.brand{white-space:nowrap}.project-actions{margin-left:0}#stage{min-height:540px}.camera-strip{flex-wrap:wrap}.floating-status{max-width:calc(100% - 24px)}#camera-monitor{display:none}.hall-panel .field label{font-size:14px}}

.layout-summary{padding:20px 0;border-bottom:1px solid #435541}.layout-summary h2{font-size:23px;font-weight:500;margin:9px 0 16px}.layout-distance{display:flex;gap:12px;align-items:center}.layout-distance b{color:var(--accent);font:26px 'IBM Plex Mono',monospace;white-space:nowrap}.layout-distance span{font-size:12px;color:#c4ccd3;max-width:120px}.layout-summary>p{font-size:12px;color:var(--muted);line-height:1.6}.layout-summary #side-fit:empty{display:none}#layout-close{float:right}#layout-dialog{max-width:780px}#layout-dialog h2{margin:0 0 5px}.layout-plan{display:block;width:100%;max-height:460px}.layout-measures{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:15px 0}.layout-measures>div{border:1px solid #3a444f;padding:12px;border-radius:6px}.layout-measures b{display:block;font-size:23px;color:var(--accent)}.layout-measures span{font-size:12px;color:#c4cdd5}.layout-note{background:#252b30;border-left:3px solid #d8fa73;padding:10px 14px}.layout-plan text{font-family:system-ui,sans-serif}#layout-dialog p{margin:8px 0}@media(max-width:650px){.layout-measures{grid-template-columns:1fr}.layout-plan{max-height:400px}}

.layout-visual{display:grid;grid-template-columns:1.2fr 1fr;gap:20px;align-items:center}.layout-visual .layout-plan{max-height:310px}.layout-visual .layout-measures{grid-template-columns:1fr;gap:8px}.layout-visual .layout-measures b{font-size:22px}.layout-visual .layout-measures>div{padding:10px 12px}@media(max-width:500px){.layout-visual{grid-template-columns:1fr;gap:0}.layout-visual .layout-plan{max-height:250px}}

#inspection-note{position:absolute;top:48px;left:16px;z-index:4;display:grid;gap:5px;padding:10px 14px;border:1px solid #526477;border-radius:6px;background:#111b27ed;color:#eef4fc;font-size:13px;max-width:calc(100% - 32px);pointer-events:none}#inspection-note[hidden]{display:none}#inspection-note strong{color:#d8fa73}#inspection-note small{font-size:11px;color:#c7d0da}

.light-meter-panel .field label{align-items:flex-start;gap:8px}.light-meter-panel output{white-space:normal;text-align:right}.roof-meter,.hazer-planner{border-top:1px solid #39414a;margin-top:18px;padding-top:16px}.roof-meter h3,.hazer-planner h3{font-size:15px;margin:0 0 12px}.roof-meter h3 span,.hazer-planner h3 span{display:block;font-size:12px;font-weight:400;color:#aeb9c4;margin-top:4px}.meter-status{font-size:13px;line-height:1.55;color:#d8fa73;background:#d8fa7308;border-left:2px solid #d8fa7370;padding:10px;margin:12px 0}.readouts b{overflow-wrap:anywhere}.hazer-planner a{color:#d8fa73}.roof-meter button{margin-bottom:12px}

#room-fov-menu{position:relative}#room-fov-menu>summary{list-style:none;padding:8px 10px;border:1px solid #526443;border-radius:5px;font-size:13px;white-space:nowrap;color:#d8fa73}#room-fov-menu>summary::-webkit-details-marker{display:none}#room-fov-read{font-family:'IBM Plex Mono',monospace}.fov-popover{position:absolute;top:calc(100% + 8px);left:0;z-index:8;width:275px;max-width:calc(100vw - 30px);padding:16px;background:#192129;border:1px solid #596347;border-radius:7px;box-shadow:0 8px 30px #0008}.fov-popover>label{display:block;font-size:13px;margin-bottom:14px}.fov-number{display:flex;align-items:center;justify-content:space-between;font-size:12px;margin:12px 0}.fov-number input{width:85px}.toolbar:has(#room-fov-menu[open]){z-index:8}#surface-meter-panel{position:absolute;bottom:68px;right:16px;width:270px;max-width:calc(100% - 32px);max-height:calc(100% - 128px);overflow:auto;z-index:4;background:#171e25f5;border:1px solid #a08050;border-radius:7px;padding:12px;box-shadow:0 8px 24px #0006}#surface-meter-panel[hidden]{display:none}#surface-meter-panel .ruler-heading{color:#ffcd75}#surface-total{display:block;font:25px 'IBM Plex Mono',monospace;color:#ffdb9b;margin:9px 0 2px}.surface-caption{font-size:11px;color:#b7c4ce}#surface-meter-name{font-size:12px;margin:10px 0}.surface-breakdown{display:grid;grid-template-columns:1fr auto;gap:7px;font-size:12px;border-top:1px solid #41474c;padding-top:10px}.surface-breakdown b{font:12px 'IBM Plex Mono',monospace}#surface-location{font:10px 'IBM Plex Mono',monospace;color:#adbac8;line-height:1.6}#surface-meter-panel summary{font-size:12px;padding:5px 0}#surface-meter-panel table{width:100%;font-size:11px;border-collapse:collapse}#surface-meter-panel td{padding:4px 0}#surface-meter-panel td:last-child{text-align:right}#surface-meter-panel .hint{font-size:11px;margin:8px 0 0}

.toolbar{display:grid;grid-template-columns:auto minmax(0,1fr);gap:8px 14px}.toolbar>.segmented{grid-column:1;grid-row:1}.toolbar>#render-mode{grid-column:2;grid-row:1;justify-self:end}.toolbar>#editor-tools,.toolbar>#camera-tools{grid-column:1/-1;grid-row:2;min-height:35px;align-items:center}.toolbar>#editor-tools[hidden],.toolbar>#camera-tools[hidden]{display:none}#navigation-help{max-width:calc(100% - 32px)}

.haze-recipe{padding:14px;background:#111820;border:1px solid #485741;border-radius:7px;margin:14px 0}.haze-recipe h3{font-size:15px;margin:0 0 15px}.haze-recipe h3 span{display:block;font-size:12px;color:#bcc7ae;font-weight:400;margin-top:5px}.haze-numbers{display:grid;grid-template-columns:1fr 1fr;gap:18px 12px}.haze-numbers span{display:block;font-size:14px;color:#c5cdd3}.haze-numbers b{display:block;font:20px 'IBM Plex Mono',monospace;color:#d8fa73;margin-top:7px;overflow-wrap:anywhere}.haze-numbers small{display:block;font-size:12px;color:#96a5b3;margin-top:4px}.haze-recipe p{font-size:12px;line-height:1.5;color:#c2ccd6;margin:16px 0 4px}.haze-recipe .text-button{font-size:12px;color:#adbaa3;border:0;background:none;text-decoration:underline;padding:4px 0}

/* Lab 2b: two everyday adjustments, with setup controls tucked away. */
#light-list{display:grid;grid-template-columns:1fr 1fr;gap:7px}.light-row{margin:0;gap:0}.light-row .select-light{font-size:13px;padding:7px 5px}.light-row small{font-size:10px}.light-row .toggle-light{width:25px;flex-shrink:0}.lights-panel{padding:16px 0 8px}.manage-lights>summary{font-size:12px;color:var(--muted);padding:9px 0 2px}.manage-lights[open]>.add-row{margin-top:10px}.advanced-setup{border-top:1px solid var(--line);margin-top:14px}.advanced-setup>summary{font-size:13px;padding:14px 0;color:#b5c1cc}.light-meter-panel>h2{margin-bottom:5px}.light-meter-panel>.field{margin:13px 0}.light-meter-panel .readouts{padding:10px}.light-meter-panel .readouts b{font-size:17px}.light-meter-panel .roof-meter{border:0;margin-top:10px;padding-top:0}.light-meter-panel .meter-status{font-size:11px;margin:6px 0;padding:5px 8px}.light-meter-panel #brightness-reference{color:#d8fa73;font-size:12px;margin-top:-7px}.light-meter-panel #adapter-note{font-size:11px;margin:5px 0}.light-meter-panel #smaller-light{font-size:11px;margin:7px 0}.text-link{border:0;background:none;padding:3px 0;color:#a6b49c;text-decoration:underline;font-size:11px;text-align:left}.output-numbers{border-color:#445239}.light-meter-panel #dimmer-out{font-size:18px;color:var(--accent)}.light-meter-panel> .field label{font-size:13px}.light-meter-panel #adapter-loss-out{font-size:12px}#scene-setup{margin-top:0}.light-meter-panel{padding-bottom:0!important}#haze-panel{padding-top:15px}.haze-recipe{margin-bottom:2px}.haze-recipe h3{font-size:13px}.haze-numbers b{font-size:18px}.haze-numbers span{font-size:12px}#selected-controls[hidden]{display:none}#render-mode{display:none}

.optic-controls{margin:12px 0 17px}.optic-controls>label{display:block;font-size:14px;margin-bottom:7px}.optic-controls select{font-size:14px}.optic-controls .field{margin:12px 0}.optic-controls .hint:empty{display:none}.optic-controls .hint{font-size:12px}.optic-angles{display:flex;gap:6px;margin-top:10px}.optic-angles button{flex:1;font-size:13px}#barn-controls{border:1px solid #414b54;border-radius:5px;padding:0 10px}#barn-controls>summary{font-size:13px}#barn-summary{color:#acb7c0;font-size:12px}#barn-controls label{font-size:13px}#barn-controls output{font-size:11px}#barn-reset{font-size:12px;margin-bottom:7px}#fresnel-controls[hidden],#reflector-controls[hidden],.field[hidden]{display:none!important}