:root{color-scheme:dark;--bg:#12171c;--panel:#1a2128;--edge:#303a44;--muted:#99a6b2;--text:#e8edf0;--gold:#ddb16a;--blue:#53aaff;--red:#ff9292;font-family:Segoe UI,Arial,sans-serif;font-size:14px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}button,input,select,textarea{font:inherit}button{padding:10px 15px;background:#252f39;border:1px solid #414d59;border-radius:6px;color:var(--text);cursor:pointer;transition:background .15s}button:hover{background:#354351}button:disabled{opacity:.4;cursor:default}button.primary{background:var(--gold);color:#20190f;border-color:var(--gold);font-weight:600}button.primary:hover{background:#efc683}button.quiet{background:transparent;border-color:transparent;color:var(--muted)}button.danger-text,.error{color:var(--red)}button.full{display:block;width:100%;margin-top:10px}input,select,textarea{color:var(--text);background:#12181e;border:1px solid #3d4955;padding:10px 11px;border-radius:5px;min-width:0;width:100%}input:focus,select:focus,textarea:focus,button:focus-visible{outline:2px solid var(--gold);outline-offset:2px}input[type=range]{accent-color:var(--gold);padding:0}label{display:block;font-size:12px;color:#bec8d0;margin:15px 0 0}label input,label select,label textarea{margin-top:7px;font-size:14px}.check{display:flex;gap:8px;align-items:center}.check input{width:auto;margin:0}.app-header{display:flex;align-items:center;gap:35px;padding:22px 30px;border-bottom:1px solid var(--edge);background:#181f26}.brand{display:flex;align-items:center;gap:13px;letter-spacing:1.6px;font-weight:600;min-width:255px}.brand small{display:block;font-size:9px;letter-spacing:2px;color:var(--muted);margin-top:6px}.rose-mark{color:var(--gold);font-size:43px;line-height:1}.current{border-left:1px solid #3a4550;padding-left:28px;display:flex;flex-direction:column;gap:4px;min-width:0}.current span,.eyebrow{font-size:10px;letter-spacing:1.8px;color:var(--gold)}.current strong{font-size:16px;font-weight:600}.current small{color:var(--muted)}.account{margin-left:auto;display:flex;align-items:center;gap:13px;font-size:12px;color:var(--muted)}.badge{font-size:9px;letter-spacing:1px;border:1px solid #526051;padding:5px 7px;color:#c8d8bb;border-radius:4px;white-space:nowrap}.main-tabs{display:flex;padding:0 30px;border-bottom:1px solid var(--edge);gap:32px;background:#181f26}.main-tabs button{background:none;border:0;border-radius:0;border-bottom:2px solid transparent;padding:17px 2px;color:#697985;font-size:11px}.main-tabs button span{font-size:14px;color:#aeb9c2;margin-left:8px}.main-tabs button.active{border-bottom-color:var(--gold);color:var(--gold)}.main-tabs button.active span{color:var(--text)}main{max-width:1700px;margin:auto;padding:26px 30px 90px}.workspace{display:none}.workspace.active{display:block}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}h1{font-size:27px;font-weight:500;letter-spacing:-.5px;margin:7px 0 6px}h2{font-size:17px;font-weight:500;margin:0 0 16px}p{font-size:13px;line-height:1.65;margin:8px 0;color:#acb8c3}.actions{display:flex;gap:8px;align-items:center}.wrap{flex-wrap:wrap}.muted{color:var(--muted)}.small-note{font-size:11px;line-height:1.7;color:var(--muted);margin-top:14px}.conversion{font-size:12px;color:var(--gold);margin-top:4px}.panel{background:var(--panel);border:1px solid var(--edge);border-radius:9px;padding:20px}.panel-head{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:10px;letter-spacing:1px;color:#b6c2cc;margin-bottom:12px}.panel-head .muted{font-size:10px;letter-spacing:0}.panel-head button,.panel-head select{font-size:11px;padding:6px 9px;width:auto}.library-layout{display:grid;grid-template-columns:1.55fr 1fr;gap:24px}.filter{margin-bottom:18px;max-width:380px}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.rosette-card{padding:15px 12px 12px;text-align:left;background:var(--panel);border-color:var(--edge);min-width:0}.rosette-card.selected{border-color:var(--gold);background:#262a2c}.rosette-card img,.rosette-card svg{display:block;width:100%;height:112px;object-fit:contain;margin-bottom:12px}.rosette-card img{mix-blend-mode:screen;filter:invert(1) hue-rotate(165deg)}.rosette-card strong{font-size:12px;font-weight:500;display:block;line-height:1.45}.rosette-card small{display:block;color:var(--muted);font-size:10px;margin-top:6px}.selected-design{position:sticky;top:20px;align-self:start}.large-rosette{height:300px;display:flex;justify-content:center;align-items:center;margin:10px 0 20px;background:#12191f;border-radius:6px}.large-rosette img{height:90%;width:90%;object-fit:contain;mix-blend-mode:screen;filter:invert(1) hue-rotate(165deg)}.large-rosette svg{width:90%;height:90%}.work-layout{display:grid;grid-template-columns:320px minmax(0,1fr);gap:20px}.control-stack{display:flex;flex-direction:column;gap:14px}.pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}.stats .stat{display:flex;justify-content:space-between;align-items:baseline;border-bottom:1px solid var(--edge);padding:12px 0;gap:10px}.stats .stat:last-child{border:0}.stat span{color:var(--muted);font-size:12px}.stat strong{font-size:18px;font-weight:500;font-variant-numeric:tabular-nums}.motion-area{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:270px 270px auto auto;gap:14px;min-width:0;align-content:start}.canvas-panel{padding:16px;overflow:hidden;display:flex;flex-direction:column;min-height:0}.canvas-panel canvas{flex:1;min-height:0;min-width:0;display:block;width:100%;touch-action:none}.overview{grid-row:span 2}.playback{grid-column:span 2;display:flex;gap:14px;align-items:center;padding:12px 16px}.playback input{flex:1;min-width:50px}.playback span{font-variant-numeric:tabular-nums;min-width:70px}.report{grid-column:span 2}summary{cursor:pointer;font-size:13px;color:#b7c5d0}details[open]>summary{margin-bottom:15px}pre{font:11px/1.7 Consolas,monospace;white-space:pre-wrap;overflow-wrap:anywhere;color:#b0c0cd;max-height:360px;overflow:auto}.blue-dot,.gold-dot{display:inline-block;width:6px;height:6px;background:var(--blue);border-radius:50%;margin:0 4px 1px 10px}.gold-dot{background:var(--gold)}.subtabs{display:flex;gap:3px}.subtabs button{padding:10px 9px;font-size:12px;flex:1;background:transparent;border-color:var(--edge)}.subtabs button.active{border-color:var(--gold);color:var(--gold)}.subpanel{display:none}.subpanel.active{display:block}.divider{border-top:1px solid var(--edge);margin:20px 0}.worm-specs{font-weight:600;color:#d8dfe4;font-size:12px}.worm-line{display:grid;grid-template-columns:24px 1fr 74px;gap:6px;align-items:start;margin:14px 0}.worm-line input[type=checkbox]{width:16px;margin-top:14px}.worm-line textarea{height:66px;resize:vertical}.worm-line select{padding:10px 4px}.source-note{margin:16px 0;background:#131b21;border-left:2px solid var(--gold);padding:12px;font-size:12px;line-height:1.6;color:#bdc9d2}.pattern-preview{padding:16px;display:flex;flex-direction:column;min-height:540px;max-height:850px;position:sticky;top:18px;align-self:start}.pattern-stage{position:relative;flex:1;min-height:430px;background:#10161b;overflow:hidden;border-radius:5px}.pattern-stage canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none}.preview-footer{display:flex;justify-content:space-between;gap:10px;font-size:11px;color:var(--muted);padding-top:13px}.preview-footer #patternStale{color:var(--gold)}.empty{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;pointer-events:none}.empty>span{font-size:75px;color:#8b7858;margin-bottom:25px}.empty h2{font-size:20px;color:#becbd4;margin-bottom:5px}.file-label{border-top:1px solid var(--edge);padding-top:15px}.file-label input{font-size:11px}.cutter-view{height:500px;min-height:460px;align-self:start}.saved-card{border-bottom:1px solid var(--edge);padding:15px 0}.saved-card svg{width:100%;height:130px;background:#12191f;border-radius:5px}.saved-card h3{font-size:14px;font-weight:500;margin:10px 0 6px}.saved-card button{font-size:12px;padding:7px 10px}#status{position:fixed;bottom:0;left:0;right:0;z-index:5;min-height:48px;border-top:1px solid var(--edge);background:#1d262e;padding:11px 28px;display:flex;align-items:center;gap:12px;font-size:12px;box-shadow:0 -6px 20px #0002}#statusText{flex:1}#statusLight{width:7px;height:7px;border-radius:50%;background:#748575}#status.busy #statusLight{background:#b0d899;animation:pulse 1s infinite}#status.error{font-weight:600;color:var(--red)}#status.error #statusLight{background:var(--red)}#cancel{padding:6px 10px;font-size:11px}@keyframes pulse{50%{opacity:.25;box-shadow:0 0 0 5px #b0d82233}}dialog{width:490px;max-width:95vw;border:1px solid #48535e;border-radius:12px;padding:28px;background:#1a222a;color:var(--text);max-height:90vh;overflow:auto}dialog::backdrop{background:#080d12cc;backdrop-filter:blur(5px)}dialog .actions{margin-top:22px}dialog h1{font-size:25px}dialog h2{margin-top:8px}#authDialog{width:430px}body:has(#authDialog[open]) main{filter:blur(3px)}[hidden]{display:none!important}svg{overflow:visible}.filter::placeholder{color:#788793}@media(max-width:1100px){.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.account{flex-direction:column;gap:5px}.work-layout{grid-template-columns:280px minmax(0,1fr)}.motion-area{grid-template-columns:1fr;grid-template-rows:320px 220px 240px auto auto}.overview{grid-row:auto}.playback,.report{grid-column:auto}.main-tabs{gap:20px}.panel-head{flex-wrap:wrap}.current{padding-left:18px}}@media(max-width:760px){.app-header{padding:15px 18px;gap:12px;flex-wrap:wrap}.brand{min-width:200px}.current{width:100%;order:3;border:0;padding:8px 0 0}.account{margin-left:auto}#accountName{display:none}.main-tabs{padding:0 15px;gap:14px;overflow:auto;white-space:nowrap}.main-tabs button{font-size:0}.main-tabs button span{font-size:12px;margin:0}main{padding:22px 16px 90px}.library-layout,.work-layout{grid-template-columns:1fr}.selected-design{position:static}.large-rosette{height:240px}.section-heading{align-items:flex-start;flex-wrap:wrap}h1{font-size:25px}.pattern-preview{position:static;min-height:470px}.pattern-stage{min-height:400px}.control-stack{order:0}.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.cutter-view{min-height:420px}#status{padding:10px 16px}.motion-area{grid-template-columns:1fr 1fr;grid-template-rows:330px 240px auto auto}.overview{grid-column:span 2}.playback,.report{grid-column:span 2}.graph,.detail{grid-column:auto}}

.sine-match{display:flex;align-items:center;gap:12px;margin:-8px 0 22px;padding:12px 16px;background:#1b3028;border:1px solid #3e6552;border-radius:7px}
/* Keep selection and its action in view independently of the long library. */
.library-selection{position:sticky;top:0;z-index:3;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 18px;margin-bottom:20px;background:var(--panel);border:1px solid #65563e;border-radius:8px;box-shadow:0 8px 18px #0003}
.library-selection>div{min-width:0}.library-selection h2{margin:5px 0;font-size:18px;overflow-wrap:anywhere}
.library-selection p{margin:0;font-size:12px}.library-selection>button{flex-shrink:0}
.selected-design{top:calc(var(--selection-height,116px) + 12px);max-height:calc(100dvh - var(--selection-height,116px) - 90px);overflow-y:auto}
.selected-design .large-rosette{height:clamp(160px,30vh,300px)}
@media(max-width:760px){.selected-design{order:-1;max-height:none;overflow:visible}.library-selection{padding:12px;gap:10px}.library-selection h2{font-size:15px}.library-selection p{font-size:11px}.library-selection>button{padding:10px;font-size:12px}}
@media(max-width:420px){.library-selection{flex-wrap:wrap}.library-selection>button{width:100%}}
.view-controls{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin:0 0 12px}
.view-controls button{font-size:12px;padding:7px 12px}
.view-controls button[aria-pressed=true]{border-color:var(--gold);color:var(--gold);background:#2a2d2b}
.view-controls span{flex:1 1 230px;font-size:11px;color:var(--muted);line-height:1.5;padding-left:5px}
#surfaceStatus:empty{display:none}
.pattern-preview>.panel-head{flex-wrap:wrap}.pattern-preview>.panel-head .actions{flex-wrap:wrap}
.shade-picker{display:flex;align-items:center;gap:9px;margin:0;color:var(--gold);font-size:12px;font-weight:600;letter-spacing:0}
.panel-head .shade-picker select{margin:0;border-color:#9b8056;background:#242b2b;font-size:12px;padding:8px 10px;color:var(--text);font-weight:500}
.sine-match>span{color:#86d99c;font-size:20px}.sine-match p{margin:0;color:#c5ddce;font-size:13px}.sine-match strong{color:#a4e4b7;font-weight:600}

/* Crossing-wheel controls share the same phasing and preview workspace. */
.subtabs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
.phase-method{color:var(--gold);font-size:12px;font-weight:600;padding:0 3px}
.phase-choice{font-size:12px;font-weight:600;color:var(--text);padding:10px 0;margin:0}
.phase-choice input{accent-color:var(--gold)}
.worm-line textarea{white-space:pre;overflow-x:auto;font-family:Consolas,monospace;font-size:13px;min-width:0;height:62px}
@media(min-width:761px){.pattern-layout{grid-template-columns:minmax(350px,.95fr) minmax(0,1.05fr)}}
#crossingSpecs,#crossingSummary{white-space:pre-line}
.alignment-note{color:var(--gold);border:1px solid var(--gold);border-radius:5px;padding:10px;font-size:12px}
.crossing-diagram svg{display:block;width:100%;height:200px;background:#12191f;border-radius:5px;margin-top:16px}
.crossing-quick{border-top:1px solid var(--edge);margin-top:15px;padding-top:5px}
#crossing details{margin-top:15px}.error{color:var(--red);font-weight:600}
.example-filters{display:flex;gap:6px;margin:16px 0}.example-filters button{flex:1;padding:9px 6px;font-size:11px}.example-filters button.active{border-color:var(--gold);color:var(--gold)}
.example-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.example-card{padding:12px;border:1px solid var(--edge);border-radius:7px;background:#131c1e}
.example-card img{display:block;width:100%;aspect-ratio:1;object-fit:contain;border-radius:4px}.example-card h3{font-size:15px;margin:12px 0 4px}.example-card p{font-size:12px}.example-card button{margin-top:8px;width:100%;font-size:12px}
@media(max-width:760px){.example-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:430px){.example-cards{grid-template-columns:1fr}}

/* Shared identity with the public welcome page. */
:root{--bg:#111919;--panel:#1a2425;--edge:#34413e;--muted:#a5b0ad;--text:#e8e8df;--gold:#d6ae73}
a.brand{color:var(--text);text-decoration:none}a.brand:hover{color:var(--gold)}
.app-header,.main-tabs{background:#192222}.brand .rose-mark{flex:none}.brand small{font-size:8px;letter-spacing:2.2px}
#authDialog{width:450px;padding:30px 32px;background:#192322;border-color:#445449;border-radius:8px}
.auth-brand{display:flex;gap:13px;align-items:center;margin-bottom:28px;padding-bottom:22px;border-bottom:1px solid var(--edge);font-size:11px;letter-spacing:1.8px}
.auth-brand small{display:block;font-size:7px;letter-spacing:1.9px;color:var(--muted);margin-top:5px}
#authDialog h1{font-family:Georgia,serif;font-weight:400;font-size:30px}#authIntro{font-size:12px;margin-top:12px}
#authSubmit{padding-block:13px;margin-top:23px}.auth-footnote{display:flex;justify-content:space-between;font-size:10px;border-top:1px solid var(--edge);padding-top:18px;margin-top:24px}.auth-footnote a{color:var(--muted);text-decoration:none}.auth-footnote a:hover{color:var(--gold)}
.no-script{padding:20px;background:#393126;color:var(--text)}.no-script a{color:var(--gold)}
@media(max-width:500px){#authDialog{padding:24px;width:calc(100% - 28px)}.auth-brand{margin-bottom:22px}.auth-footnote{gap:12px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

#authDialog{padding:24px 30px}.auth-brand{margin-bottom:16px;padding-bottom:13px}
#authDialog label{margin-top:11px}#authDialog label input{margin-top:5px;padding-block:8px}
#authDialog #passwordHint{margin-top:8px}#authSubmit{margin-top:16px;padding-block:11px}
#authMessage:empty,#authError:empty{display:none}.auth-footnote{margin-top:14px;padding-top:13px}
#authDialog{max-height:94vh}body:has(#authDialog[open]){overflow:hidden}
#accountsDialog{width:780px}#accountsDialog h1{margin:0}#accountsDialog .panel-head{margin-bottom:16px}
.access-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(190px,240px) auto;gap:16px;align-items:end;border-top:1px solid var(--edge);padding:18px 0}
.access-row strong,.access-row span{display:block}.access-row>div{align-self:center;overflow-wrap:anywhere}.access-row>div span{color:var(--muted);font-size:12px;margin-top:5px}.access-row label{margin:0}.access-owner{color:var(--gold);align-self:center;grid-column:span 2}
#pendingAccess h1{font-family:Georgia,serif;font-weight:400}#pendingAccess .actions{margin-top:24px}#accountsMessage:empty,#pendingMessage:empty{display:none}
body:has(#pendingAccess[open]){overflow:hidden}body:has(#pendingAccess[open]) main{filter:blur(3px)}
@media(max-width:600px){.access-row{grid-template-columns:1fr auto}.access-row>div{grid-column:1/-1}.access-row label{min-width:0}.access-owner{grid-column:1/-1}}
.access-gate{max-width:580px;margin:12vh auto;padding:32px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:20px}.access-gate h1{font-family:Georgia,serif;font-weight:400;font-size:36px;margin:0}.access-gate p{color:var(--muted);line-height:1.7}.access-gate>a{color:var(--gold)}

/* Fixed sine views allow ordinary page scrolling, including on touch screens. */
.motion-area canvas{touch-action:auto;cursor:default}