/* Grid Fonts: styles */
@font-face{font-family:"Ubuntu";src:url("../media/fonts/Ubuntu-Regular.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Ubuntu";src:url("../media/fonts/Ubuntu-Medium.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}

:root{
  color-scheme:light;
  /* Colour */
  --bg:#f4f4f5;--surface:#ffffff;--surface-2:#ececef;--surface-sunk:#f1f1f3;
  --canvas:#f7f7f8;--canvas-dot:rgba(24,24,27,.10);
  --text-primary:#18181b;--text-secondary:#55555d;--text-muted:#6c6c74;
  --border:rgba(24,24,27,.10);--border-strong:rgba(24,24,27,.22);
  /* #0ade7b is too light for white text or thin lines on white, so light mode pairs it
     with black text and uses darker greens for lines (3:1+) and text (4.5:1+). */
  --accent:#0ade7b;--accent-hover:#05c96e;--on-accent:#0e0e10;
  --accent-line:#079c57;--text-accent:#067f46;--bg-accent:#e6faf0;
  --guide:rgba(7,156,87,.45);--guide-strong:rgba(7,156,87,.75);
  --text-danger:#b42318;--bg-danger:#fef3f2;--success:#067647;
  --danger-solid:#b42318;--on-danger:#ffffff;
  --toast-bg:#18181b;--toast-fg:#fafafa;--toast-success:#32d583;
  --logo-empty:#e4e4e7;
  --backdrop:rgba(9,9,11,.4);
  --paper-shadow:drop-shadow(0 1px 2px rgba(0,0,0,.06)) drop-shadow(0 6px 16px rgba(0,0,0,.07));
  /* Type: four sizes, two weights */
  --fs-xs:11px;--fs-sm:12px;--fs-md:13px;--fs-lg:16px;
  --fw-regular:400;--fw-medium:500;
  /* Space */
  --s1:4px;--s2:8px;--s3:12px;--s4:16px;--s5:24px;
  /* Shape */
  --radius:4px;
  --shadow:0 1px 2px rgba(0,0,0,.04),0 1px 3px rgba(0,0,0,.06);
  --shadow-lg:0 12px 32px rgba(0,0,0,.16);
  --font:"Ubuntu",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
/* Dark is the default; the header switch sets data-theme="light". */
:root:not([data-theme="light"]){
  color-scheme:dark;
  --bg:#0e0e10;--surface:#18181b;--surface-2:#26262b;--surface-sunk:#121214;
  --canvas:#111113;--canvas-dot:rgba(255,255,255,.07);
  --text-primary:#f4f4f5;--text-secondary:#b6b6bd;--text-muted:#94949c;
  --border:rgba(255,255,255,.09);--border-strong:rgba(255,255,255,.2);
  --accent:#0ade7b;--accent-hover:#3ce896;--on-accent:#0e0e10;--accent-line:#0ade7b;
  --text-accent:#0ade7b;--bg-accent:rgba(10,222,123,.12);
  --guide:rgba(10,222,123,.16);--guide-strong:rgba(10,222,123,.42);
  --text-danger:#fda29b;--bg-danger:rgba(240,68,56,.12);--success:#75e0a7;
  --toast-bg:#f4f4f5;--toast-fg:#18181b;--toast-success:#067647;
  --logo-empty:#2e2e33;
  --backdrop:rgba(0,0,0,.6);
  --paper-shadow:drop-shadow(0 1px 2px rgba(0,0,0,.5)) drop-shadow(0 6px 16px rgba(0,0,0,.35));
  --shadow:0 1px 2px rgba(0,0,0,.4);--shadow-lg:0 12px 32px rgba(0,0,0,.5);
}
*{box-sizing:border-box;margin:0;padding:0}
[hidden]{display:none!important}
html,body{background:var(--bg);color:var(--text-primary);font:var(--fw-regular) var(--fs-md)/1.45 var(--font);-webkit-font-smoothing:antialiased}
body{height:100vh;height:100dvh;overflow:hidden;display:flex;flex-direction:column}
button,input{font:inherit;color:inherit}
h2{font-size:var(--fs-lg);font-weight:var(--fw-medium);line-height:1.3}
:focus-visible{outline:2px solid var(--accent-line);outline-offset:2px;border-radius:var(--radius)}

/* App bar */
.appbar{flex:none;z-index:20;display:flex;align-items:center;gap:var(--s3);padding:var(--s2) var(--s4);background:var(--surface);border-bottom:1px solid var(--border)}
.logo{flex:none;display:flex;align-items:center;gap:var(--s2);color:var(--text-primary);text-decoration:none}
.logo svg{width:28px;height:28px}
.logo-name{font-size:var(--fs-lg);font-weight:var(--fw-medium);letter-spacing:-.01em}
.logo-empty{fill:var(--logo-empty)}
.logo-ink{fill:var(--text-primary)}
.logo-accent{fill:var(--accent)}
.save-state{margin-left:var(--s2);display:inline-flex;align-items:center;gap:var(--s1);font-size:var(--fs-sm);color:var(--text-muted);white-space:nowrap}
.save-state svg{width:14px;height:14px}
.save-state.failed{color:var(--text-danger)}
.appbar-actions{margin-left:auto;display:flex;gap:var(--s3);align-items:center}
.btn-group{display:flex;align-items:center;gap:2px}
.btn-group+.btn-group{padding-left:var(--s3);border-left:1px solid var(--border)}
/* Theme switch: on = dark. The knob shows the current theme's icon. */
.theme-switch{display:inline-grid;place-items:center;height:34px;padding:0 var(--s1);border:0;background:transparent;border-radius:var(--radius);cursor:pointer}
.ts-track{position:relative;display:block;width:44px;height:24px;border-radius:12px;background:var(--surface-2);border:1px solid var(--border-strong);transition:background .2s,border-color .2s}
.ts-knob{position:absolute;top:2px;left:2px;display:grid;place-items:center;width:18px;height:18px;border-radius:50%;background:var(--text-primary);color:var(--surface);transition:transform .2s ease}
.ts-knob svg{width:12px;height:12px}
.theme-switch:hover .ts-track{border-color:var(--text-secondary)}
:root:not([data-theme="light"]) .ts-knob{transform:translateX(20px)}
.ts-knob>span{display:flex}
:root:not([data-theme="light"]) .theme-switch .ico-sun,:root[data-theme="light"] .theme-switch .ico-moon{display:none}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:34px;padding:0 var(--s3);border-radius:var(--radius);border:1px solid var(--border-strong);
  background:var(--surface);color:var(--text-primary);font-size:var(--fs-md);font-weight:var(--fw-medium);cursor:pointer;white-space:nowrap;transition:background .12s,border-color .12s,transform .08s,opacity .12s}
.btn:hover:not(:disabled){background:var(--surface-2);border-color:color-mix(in srgb,var(--text-primary) 30%,transparent)}
.btn:active:not(:disabled){transform:translateY(1px)}
.btn:disabled{opacity:.35;cursor:not-allowed}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--on-accent);padding:0 var(--s4)}
.btn.primary:hover:not(:disabled){background:var(--accent-hover);border-color:var(--accent-hover)}
.btn.ghost{background:transparent;border-color:transparent}
.btn.ghost:hover:not(:disabled){background:var(--surface-sunk)}
.btn.danger{color:var(--text-danger)}
.btn.accent{color:var(--text-accent);border-color:color-mix(in srgb,var(--accent) 50%,transparent);background:var(--bg-accent)}
.btn.accent:hover:not(:disabled){border-color:var(--accent-line);background:var(--bg-accent)}
.btn.sq{width:34px;padding:0}

/* Segmented control */
.seg{display:inline-flex;padding:2px;gap:2px;background:var(--surface-sunk);border:1px solid var(--border);border-radius:var(--radius)}
.seg button{border:0;background:transparent;height:28px;padding:0 10px;border-radius:var(--radius);font-size:var(--fs-md);font-weight:var(--fw-medium);color:var(--text-secondary);cursor:pointer}
.seg button:hover:not(:disabled){color:var(--text-primary);background:var(--surface-2)}
.seg button[aria-pressed="true"]{background:var(--bg-accent);color:var(--text-accent);box-shadow:inset 0 0 0 1px var(--accent-line)}
.seg button:disabled{opacity:.4;cursor:not-allowed}
.seg-fill{display:flex}
.seg-fill button{flex:1;padding:0 var(--s1);font-size:var(--fs-sm)}

/* Layout: one screen on desktop */
.workspace{flex:1;min-height:0;width:100%;max-width:1600px;margin:0 auto;display:grid;grid-template-columns:288px minmax(0,1fr) 300px;gap:var(--s3);padding:var(--s3)}
.col{display:flex;flex-direction:column;gap:var(--s3);min-height:0;overflow:auto}
.card{background:var(--surface);border:1px solid transparent;border-radius:var(--radius)}
.editor{border-color:var(--border);box-shadow:var(--shadow)}
.card-h{display:flex;align-items:center;gap:var(--s2);padding:var(--s3) var(--s4) 0;min-height:40px}
.card-b{padding:var(--s3) var(--s4) var(--s4);display:flex;flex-direction:column;gap:var(--s3)}

/* Grid choice */
.glist{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--s2)}
.gopt{display:flex;flex-direction:column;gap:var(--s2);min-width:0;padding:var(--s2);border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);text-align:left;cursor:pointer;transition:border-color .12s,background .12s,transform .12s,box-shadow .12s}
.gopt:hover{border-color:var(--border-strong);transform:translateY(-1px);box-shadow:var(--shadow)}
.gopt[aria-checked="true"]{border-color:var(--accent-line);background:var(--bg-accent);box-shadow:inset 0 0 0 1px var(--accent-line)}
.gicon{display:grid;place-items:center;height:72px;padding:var(--s1);border-radius:var(--radius);background:var(--canvas)}
.gicon svg{width:100%;height:100%}
.thumb-glyph{fill:var(--text-primary);opacity:.85}
.thumb-grid{fill:none;stroke:var(--text-secondary);stroke-width:1;vector-effect:non-scaling-stroke;opacity:.45}
.thumb-grid *{vector-effect:non-scaling-stroke}
.gopt[aria-checked="true"] .gicon{background:var(--surface)}
.gopt[aria-checked="true"] .thumb-glyph{fill:var(--accent);opacity:.9}
.gopt[aria-checked="true"] .thumb-grid{stroke:var(--accent-line);opacity:.5}
.gtext{min-width:0}
.gtext b{display:block;font-size:var(--fs-md);font-weight:var(--fw-medium)}

/* Glyphs */
.prog{font-size:var(--fs-sm);color:var(--text-secondary);margin-left:auto}
.tabs{position:relative;display:grid;grid-template-columns:repeat(8,1fr);gap:var(--s1)}
.ltab{position:relative;display:grid;place-items:center;height:36px;border:1px solid transparent;border-radius:var(--radius);background:transparent;cursor:pointer;transition:background .12s,transform .12s,box-shadow .12s}
.ltab:hover{background:var(--surface);border-color:var(--border);box-shadow:var(--shadow);transform:translateY(-1px)}
.ltab[aria-selected="true"]{background:var(--bg-accent);border-color:var(--accent-line);box-shadow:0 0 0 3px var(--bg-accent)}
.ltab svg{width:22px;height:22px}
.ltab svg path{fill:var(--text-primary)}
.ltab.empty svg{opacity:.2}
.ltab.edited::after{content:"";position:absolute;top:3px;right:3px;width:5px;height:5px;border-radius:50%;background:var(--accent-line)}
.glyph-card{flex:1 0 auto;display:flex;flex-direction:column}
.toolbar-mini{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding:var(--s1);border-top:1px solid var(--border)}

/* Editor */
.editor{display:flex;flex-direction:column;min-height:0;overflow:hidden}
.chead{flex:none;display:flex;flex-wrap:wrap;align-items:center;gap:var(--s2) var(--s3);padding:var(--s3) var(--s4);border-bottom:1px solid var(--border)}
.ctitle{min-width:0;flex:1 1 320px}
.ctitle p{font-size:var(--fs-sm);color:var(--text-secondary);text-wrap:pretty}
.cactions{display:flex;gap:var(--s2);flex:none}
.stage{flex:1;min-height:0;display:flex;padding:var(--s5);background-color:var(--canvas);
  background-image:radial-gradient(var(--canvas-dot) 1px,transparent 1.5px);background-size:16px 16px}
#grid{flex:1 1 auto;width:100%;height:100%;min-width:0;min-height:0;touch-action:none;user-select:none;overflow:visible}
.paper{fill:var(--surface);filter:var(--paper-shadow)}
.toolbar{flex:none;display:flex;flex-wrap:wrap;align-items:center;gap:var(--s2) var(--s4);padding:var(--s3) var(--s4);border-top:1px solid var(--border)}
.tgroup{display:flex;flex-wrap:wrap;align-items:center;gap:var(--s2)}
/* A divider before every visible group that follows another visible group */
.toolbar>.tgroup:not([hidden])~.tgroup{padding-left:var(--s4);border-left:1px solid var(--border)}
.tlabel{font-size:var(--fs-sm);font-weight:var(--fw-medium);color:var(--text-secondary)}

/* Editing surface */
.inert{pointer-events:none}
.rg,.kc{fill:transparent;cursor:pointer;transition:fill .12s}
@media (hover:hover){.rg:hover,.kc:hover{fill:var(--bg-accent)}.rg.on:hover{fill:var(--text-secondary)}}
.rg.on,#glyph{fill:var(--text-primary)}
#guides *,#guides2 *,#planeLayer *{vector-effect:non-scaling-stroke}
.guide{fill:none;stroke:var(--guide);stroke-width:1}
.guide-strong{fill:none;stroke:var(--guide-strong);stroke-width:1}
.guide-dots{fill:var(--guide-strong)}
/* Guides stay quiet until the pointer is over the grid */
.guide,.guide-strong,.guide-dots{opacity:.75;transition:opacity .2s}
#grid:hover :is(.guide,.guide-strong,.guide-dots){opacity:1}
.plane-bg{fill:transparent}
.plane-shape{fill:var(--text-primary);fill-opacity:.85;cursor:move}
.plane-shape.sel{stroke:var(--accent-line);stroke-width:2;fill-opacity:.75}
.plane-pt{fill:var(--accent-line);stroke:var(--surface);stroke-width:2;cursor:grab}
.plane-pt.sel{fill:var(--text-danger)}
.plane-mid{fill:var(--surface);stroke:var(--guide-strong);stroke-width:1;cursor:copy}

/* Forms & preview */
.field label{display:block;font-size:var(--fs-sm);font-weight:var(--fw-medium);margin-bottom:var(--s1)}
.field-row{display:flex;align-items:center;gap:var(--s3)}
.field-row label{margin:0}
.field-row input[type=range]{flex:1;min-width:0;accent-color:var(--accent-line)}
.field-row output{min-width:40px;text-align:right;font-size:var(--fs-sm);color:var(--text-secondary);font-variant-numeric:tabular-nums}
.input{width:100%;height:36px;padding:0 10px;border:1px solid var(--border-strong);border-radius:var(--radius);background:var(--surface);font-size:var(--fs-md);transition:border-color .12s,box-shadow .12s}
.input:hover{border-color:color-mix(in srgb,var(--text-primary) 35%,transparent)}
.input:focus-visible{outline:none;border-color:var(--accent-line);box-shadow:0 0 0 3px var(--bg-accent)}
.input[aria-invalid="true"]{border-color:var(--text-danger);box-shadow:0 0 0 3px var(--bg-danger)}
.help{font-size:var(--fs-sm);color:var(--text-secondary)}
.field .help,.field-err{margin-top:var(--s1)}
.field-err{font-size:var(--fs-sm);color:var(--text-danger);font-weight:var(--fw-medium)}
.preview-card{flex:1 1 auto;min-height:0;display:flex;flex-direction:column}
.preview-card .card-b{flex:1;min-height:0}
/* Buy Me a Coffee: their colours, built in so no third-party script is needed */
.bmc{position:sticky;bottom:0;flex:none;display:flex;align-items:center;justify-content:center;gap:var(--s2);height:44px;border:1px solid #000;border-radius:var(--radius);background:#ffdd00;color:#000;font-size:var(--fs-lg);font-weight:var(--fw-medium);text-decoration:none;transition:transform .12s,box-shadow .12s}
.bmc:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.pvbox{flex:1;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);box-shadow:inset 0 1px 2px rgba(0,0,0,.03);padding:var(--s4);min-height:120px;overflow:auto}
#pv{display:block;width:100%;overflow:visible}
#pvpath{fill:var(--text-primary)}
.stat{margin-left:auto;font-size:var(--fs-sm);color:var(--text-muted);font-variant-numeric:tabular-nums}

/* Popover and dialog */
.popover{inset:auto;top:56px;right:var(--s4);margin:0;width:min(320px,calc(100vw - 32px));padding:var(--s4);border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text-primary);box-shadow:var(--shadow-lg)}
.popover-h{font-size:var(--fs-md);margin-bottom:var(--s3)}
.keys{display:grid;grid-template-columns:auto 1fr;gap:var(--s2) var(--s3);align-items:center;font-size:var(--fs-sm)}
.keys dd{color:var(--text-secondary)}
.popover-foot{width:100%;margin-top:var(--s4)}
/* Tour: full-viewport modal; the ring dims everything except the highlighted part */
.tour{position:fixed;inset:0;width:100%;height:100%;max-width:none;max-height:none;margin:0;padding:0;border:0;background:transparent;overflow:hidden}
.tour::backdrop{background:transparent}
.tour-ring{position:fixed;border-radius:var(--radius);box-shadow:0 0 0 2px var(--accent),0 0 0 6px color-mix(in srgb,var(--accent) 30%,transparent),0 0 0 100vmax rgba(0,0,0,.72);pointer-events:none;transition:top .25s ease,left .25s ease,width .25s ease,height .25s ease}
.tour-card{position:fixed;width:min(300px,calc(100vw - 32px));padding:var(--s4);border:1px solid var(--accent-line);border-radius:var(--radius);background:var(--surface-2);color:var(--text-primary);box-shadow:var(--shadow-lg)}
.tour-card h2{font-size:var(--fs-lg);margin-bottom:var(--s1)}
.tour-step{display:flex;align-items:center;gap:var(--s2);font-size:var(--fs-xs);color:var(--text-accent);font-weight:var(--fw-medium);margin-bottom:var(--s2)}
.tour-bar{display:flex;gap:3px}
.tour-bar i{width:16px;height:3px;border-radius:2px;background:var(--border-strong)}
.tour-bar i.on{background:var(--accent-line)}
.tour-text{font-size:var(--fs-md);color:var(--text-secondary);line-height:1.5}
.tour-actions{display:flex;justify-content:space-between;align-items:center;gap:var(--s2);margin-top:var(--s4)}
.tour-nav{display:flex;gap:var(--s2)}
kbd{display:inline-block;font:var(--fw-medium) var(--fs-xs)/1 var(--mono);padding:3px 5px;border:1px solid var(--border-strong);border-bottom-width:2px;border-radius:var(--radius);background:var(--surface)}
.dialog{margin:auto;width:min(420px,calc(100vw - 32px));padding:var(--s5);border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text-primary);box-shadow:var(--shadow-lg)}
.dialog::backdrop{background:var(--backdrop)}
.dialog-desc{margin-top:var(--s2);color:var(--text-secondary)}
.dialog-fields{display:flex;flex-direction:column;gap:var(--s4);margin-top:var(--s5)}
.dialog-actions{display:flex;justify-content:flex-end;gap:var(--s2);margin-top:var(--s5)}

/* Toasts */
.toasts{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom));transform:translateX(-50%);z-index:50;display:flex;flex-direction:column;gap:var(--s2);align-items:center;pointer-events:none;width:max-content;max-width:calc(100vw - 32px)}
.toast{pointer-events:auto;display:flex;align-items:center;gap:14px;background:var(--toast-bg);color:var(--toast-fg);padding:9px var(--s4);border-radius:var(--radius);box-shadow:var(--shadow-lg);font-size:var(--fs-md);animation:toast-in .18s ease-out}
.toast:has(.toast-act){padding-right:10px}
.toast.error{background:var(--danger-solid);color:var(--on-danger)}
.toast.success::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--toast-success);flex:none}
.toast-act{border:0;background:transparent;color:inherit;font-weight:var(--fw-medium);padding:5px 10px;border-radius:var(--radius);cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.toast-act:hover{background:color-mix(in srgb,currentColor 15%,transparent)}
@keyframes enter{from{opacity:.35;transform:scale(.985)}to{opacity:1;transform:none}}
#grid.enter{animation:enter .2s ease-out;transform-origin:center}
@keyframes toast-in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
/* Theme change: the browser cross-fades the old and new page */
::view-transition-old(root),::view-transition-new(root){animation-duration:.35s;animation-timing-function:ease}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* Shorter desktop window: grid choice in one compact row so the left column fits without scrolling */
@media (min-width:1024px) and (min-height:560px) and (max-height:789px){
  .grid-card .card-h{display:none}
  .grid-card .card-b{padding:var(--s2)}
  .glist{grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}
  .gopt{gap:var(--s1);padding:var(--s1);text-align:center}
  .gicon{height:44px;padding:2px}
}
@media (min-width:1024px) and (min-height:560px) and (max-height:639px){.ltab{height:30px}}

/* Tablet, small laptop or short window: page scrolls, pickers beside the editor, details below */
@media (max-width:1023px),(max-height:559px){
  body{height:auto;min-height:100vh;min-height:100dvh;overflow:visible}
  .appbar{position:sticky;top:0}
  .workspace{grid-template-columns:260px minmax(0,1fr);align-items:start}
  .workspace>.col:last-child{grid-column:1/-1}
  .col{overflow:visible}
  .tabs{grid-template-columns:repeat(auto-fill,minmax(36px,1fr))}
  .editor{overflow:visible}
  .stage{display:block}
  #grid{display:block;height:auto;aspect-ratio:1;max-height:70vh;margin:0 auto}
  .seg button{height:38px}
  .save-state span{display:none}
}

/* Phone: one column, grids in a row, glyphs in a swipeable strip, full-width editor */
@media (max-width:760px){
  .appbar{gap:var(--s2);padding:6px var(--s2) 6px var(--s3)}
  .logo-name{display:none}
  .appbar-actions{gap:6px}
  .btn.primary{padding:0 var(--s3)}
  .workspace{grid-template-columns:minmax(0,1fr);gap:var(--s2);padding:var(--s2) var(--s2) calc(16px + env(safe-area-inset-bottom))}
  .workspace>.col:last-child{grid-column:auto}
  .col{gap:var(--s2)}
  .col>.card,.editor{min-width:0}
  .card-h{padding:var(--s3) var(--s3) 0}
  .card-b{padding:var(--s2) var(--s3) var(--s3)}

  /* Grid choice: four across */
  .grid-card .card-h{display:none}
  .grid-card .card-b{padding:var(--s2)}
  .glist{grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}
  .gopt{gap:var(--s1);padding:var(--s1);text-align:center}
  .gicon{height:48px;padding:2px}

  /* Glyphs: one swipeable row */
  .glyph-card>.card-b{min-width:0}
  .tabs{min-width:0;max-width:100%;grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:42px;overflow-x:auto;overscroll-behavior-x:contain;scroll-snap-type:x proximity;scrollbar-width:none;padding:2px}
  .tabs::-webkit-scrollbar{display:none}
  .ltab{height:48px;scroll-snap-align:center}

  /* Editor */
  .chead{padding:var(--s2) 10px;gap:10px}
  .stage{padding:var(--s3) var(--s2)}
  .save-state{display:none}
  #grid{aspect-ratio:auto;max-height:62vh}
  .toolbar{gap:var(--s2);padding:var(--s2) 10px}
  .toolbar>.tgroup:not([hidden])~.tgroup{padding-left:0;border-left:0}

  /* Forms: 16px text stops iOS zooming in on focus */
  .input{font-size:16px;height:44px}
}