/* /ring-sizer/ page styles. Built from /assets/polyatic.css tokens only (no new colours or fonts).
   The calibration stage is copied from /ruler/ruler.css and renamed (PB-4: never loaded across folders). */
.nojs{margin:1.25rem 0 0;padding:0.875rem 1rem;border:1px solid var(--line);border-left:0.25rem solid var(--accent);border-radius:0.625rem;background:var(--surface);color:var(--ink);font-size:0.9375rem;line-height:1.6}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
@media(max-width:520px){.rs-head h1{margin-bottom:0.25rem}.rs-head .sub{font-size:0.9375rem;margin-bottom:0.75rem}}

/* layout: uncalibrated = calibrate first; calibrated = measure first, the calibration shrinks to one line */
.rs-tool{display:grid;gap:0.875rem;grid-template-columns:minmax(0,1fr);grid-template-areas:"meas" "print" "cal"}
.rs-tool.uncal{grid-template-areas:"cal" "meas" "print"}
@media(min-width:860px){
  .rs-tool{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);grid-template-rows:auto 1fr;grid-template-areas:"meas cal" "meas print";align-items:start}
  .rs-tool.uncal{grid-template-areas:"cal meas" "print meas"}
}
.rs-cal{grid-area:cal;padding:1rem;min-width:0}
.rs-meas{grid-area:meas;padding:1rem;min-width:0}
.rs-print{grid-area:print;padding:1rem;min-width:0}
.rs-chart{margin-top:0.875rem;padding:1rem}
@media(max-width:520px){.rs-cal,.rs-meas,.rs-print,.rs-chart{padding:0.75rem}}

.rs-sec{display:flex;align-items:center;gap:0.5rem;font-family:var(--mono);font-size:0.75rem;font-weight:500;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 0.5rem}
.rs-n{display:inline-grid;place-items:center;width:1.375rem;height:1.375rem;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-weight:600}
.rs-row{display:flex;flex-wrap:wrap;gap:0.5rem;align-items:center}
.rs-chips{gap:0.375rem;margin:0 0 0.625rem}
.rs-chips .chip,.rs-row .chip,.rs-fit .chip{padding:0.375rem 0.75rem;font-size:0.8125rem}
.chip:focus-visible,.btn:focus-visible,.rs-size:focus-visible,.rs-ring-stage:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
kbd{font-family:var(--mono);font-size:0.8125em;background:var(--surface-2);border:1px solid var(--line);border-radius:0.25rem;padding:0 0.25rem}
.rs-state{margin:0 0 0.625rem;font-size:0.875rem;color:var(--ink-2);line-height:1.5}
.rs-state:empty{display:none}
.rs-tool:not(.uncal) .rs-cal .rs-state{margin-bottom:0.5rem}
.rs-hint{margin:0.375rem 0 0.625rem;font-size:0.8125rem;color:var(--muted);line-height:1.5}
.rs-msg{margin:0.375rem 0 0;font-size:0.8125rem;color:var(--bad)}
.rs-msg:empty{display:none}
.rs-err{margin:0.625rem 0 0;font-size:0.8125rem;color:var(--muted);line-height:1.5}

/* range rows */
.rs-fit{display:flex;align-items:center;gap:0.5rem}
.rs-fit .chip{flex:0 0 auto;padding:0.375rem 0.5rem;font-family:var(--mono)}
.rs-range{flex:1 1 auto;min-width:0;display:flex;align-items:center;min-height:2.5rem}
.rs-range input{width:100%}
.rs-out{flex:0 0 auto;font-family:var(--mono);font-size:0.8125rem;color:var(--ink);min-width:6.5em;text-align:right}

/* the card stage; full-bleed on a phone so an upright card fits the screen width */
.rs-stage{position:relative;margin:0 0 0.75rem;min-height:4rem;touch-action:none;cursor:nwse-resize;user-select:none;-webkit-user-select:none}
@media(max-width:859px){.rs-stage{margin-left:calc(-1.125rem - 0.75rem - 1px);margin-right:calc(-1.125rem - 0.75rem - 1px)}}
@media(min-width:521px) and (max-width:859px){.rs-stage{margin-left:calc(-1.125rem - 1rem - 1px);margin-right:calc(-1.125rem - 1rem - 1px)}}
.rs-shape{box-sizing:border-box;border:2px dashed var(--accent);background:var(--accent-soft);border-radius:3.18mm;position:relative}
@media(max-width:859px){.rs-shape{margin-inline:auto}}
.rs-shape span{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-family:var(--mono);font-size:0.75rem;color:var(--accent);white-space:nowrap;pointer-events:none}
.rs-shape.upright span{transform:translate(-50%,-50%) rotate(-90deg)}
.rs-diag label{display:block;font-size:0.875rem;font-weight:600;margin:0 0 0.375rem}
.rs-diag input{flex:0 1 9rem}
.rs-zoom{margin:0 0 0.75rem;padding:0.75rem 0.875rem;border:1px solid var(--line);border-left:0.25rem solid var(--warn);border-radius:0.5rem;background:var(--surface-2);font-size:0.875rem;line-height:1.55}
.rs-zoom p{margin:0 0 0.5rem}
.rs-tool:not(.uncal) #cal-form{display:none}

/* the measuring circle: its outer edge is the inside diameter */
.rs-ring-stage{position:relative;display:grid;place-items:center;margin:0 0 0.5rem;border:1px dashed var(--line-2);border-radius:0.5rem;background:var(--surface-2);touch-action:none;cursor:ew-resize;user-select:none;-webkit-user-select:none;overflow:hidden}
.rs-disc{box-sizing:border-box;border-radius:50%;background:var(--accent-soft);box-shadow:inset 0 0 0 1px var(--accent);position:relative}
.rs-cross{position:absolute;left:50%;top:50%;width:0.75rem;height:0.75rem;transform:translate(-50%,-50%);background:linear-gradient(var(--accent),var(--accent)) center/100% 1px no-repeat,linear-gradient(var(--accent),var(--accent)) center/1px 100% no-repeat}
.rs-stats{margin:0.5rem 0}
.rs-stats .v{font-family:var(--mono);font-size:1.25rem}

/* the result table */
.rs-tablewrap{overflow-x:auto}
.rs-sizes{width:100%;border-collapse:collapse;font-size:0.875rem;font-variant-numeric:tabular-nums}
.rs-sizes th,.rs-sizes td{text-align:left;padding:0.375rem 0.5rem;border-bottom:1px solid var(--line)}
.rs-sizes thead th{font-family:var(--mono);font-size:0.6875rem;font-weight:500;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.rs-sizes tbody th{font-weight:550;color:var(--ink-2)}
.rs-sizes .main{font-family:var(--mono);font-size:1.0625rem;font-weight:650;color:var(--accent)}
.rs-sizes .side{font-family:var(--mono);color:var(--muted)}

/* the on-screen chart of true-size circles */
.rs-chart-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(var(--cell,7.5rem),1fr));gap:0.5rem}
.rs-size{display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:0.375rem;padding:0.5rem 0.25rem;border:1px solid var(--line);border-radius:0.5rem;background:var(--surface);color:var(--ink);font:inherit;cursor:pointer}
.rs-size:hover{border-color:var(--ink)}
.rs-size.on{border-color:var(--accent);background:var(--accent-soft)}
.rs-size .disc{display:block;box-sizing:border-box;border-radius:50%;box-shadow:inset 0 0 0 1px var(--ink-2)}
.rs-size.on .disc{box-shadow:inset 0 0 0 1px var(--accent)}
.rs-size b{font-family:var(--mono);font-size:0.8125rem;font-weight:600}
.rs-detail{margin:0.75rem 0 0;font-size:0.9375rem;line-height:1.55}
.rs-detail:empty{display:none}
.rs-detail p{margin:0 0 0.5rem}