/* Studio Nine — Toggle Lab demos. Monochrome, square edges, SN Grotesk. Scoped under .s9e */
.s9e.s9e {
  --e-ink: #0f0f0e; --e-ink2: #3d3d39; --e-mid: #6b6b66; --e-line: rgba(15, 15, 14, 0.12); --e-line2: rgba(15, 15, 14, 0.28);
  --e-paper: #fff; --e-paper2: #f4f4f1; --e-accent: #d8a24a;
  margin: 2.6em 0; padding: clamp(1.25rem, 3vw, 2rem); background: var(--e-paper2); border: 1px solid var(--e-line);
  container-type: inline-size;
  font-family: 'SN Grotesk', system-ui, -apple-system, sans-serif; color: var(--e-ink); font-size: 15px; line-height: 1.5;
}
.s9e.s9e * { box-sizing: border-box; }
.s9e.s9e p { margin: 0; }
.s9e .s9e__k { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--e-mid); margin-bottom: 1.4rem !important; }
.s9e .s9e__note { color: var(--e-mid); font-size: 0.85rem; margin-top: 1.2rem !important; max-width: 60ch; }
.s9e .s9e__rm { font-size: 0.85rem; color: var(--e-ink2); margin-top: 1rem !important; }
.s9e .s9e__link { font: inherit; background: none; border: 0; padding: 0; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; color: var(--e-ink); }
.s9e .s9e__stage { display: grid; gap: 1.6rem; }
.s9e .s9e__row { display: flex; flex-wrap: wrap; gap: 2.4rem 3.2rem; align-items: flex-start; justify-content: center; }
.s9e .s9e__row--big { gap: 2.4rem 4.5rem; padding: 1rem 0; }
.s9e .s9e__row--ctl { justify-content: flex-start; align-items: flex-end; gap: 1rem 1.6rem; padding-top: 1.2rem; border-top: 1px solid var(--e-line); }
.s9e .s9e__cell { display: grid; justify-items: center; gap: 0.35rem; text-align: center; max-width: 15rem; }
.s9e .s9e__cell > .s9sw, .s9e .s9e__cell > .s9e__cb { margin-bottom: 0.6rem; }
.s9e .s9e__lbl { font-weight: 500; text-wrap: balance; }
.s9e .s9e__sub { color: var(--e-mid); font-size: 0.82rem; line-height: 1.45; text-wrap: balance; }

/* the switch */
.s9e .s9sw { position: relative; display: inline-block; padding: 0; border: 0; background: none; cursor: pointer; border-radius: 999px; touch-action: manipulation; -webkit-tap-highlight-color: transparent; }
.s9e .s9sw:focus-visible { outline: 2px solid var(--e-ink); outline-offset: 4px; }
.s9e .s9sw__track { position: absolute; inset: 0; border-radius: 999px; background: rgb(217, 217, 211); box-shadow: inset 0 1px 2px rgba(15, 15, 14, 0.12); overflow: visible; }
.s9e .s9sw__knob { position: absolute; left: 0; border-radius: 999px; background: #fff; box-shadow: 0 1px 2px rgba(15, 15, 14, 0.28), 0 3px 10px rgba(15, 15, 14, 0.14); will-change: transform, width; }

/* the plain checkbox */
.s9e .s9e__cb { position: relative; display: inline-grid; place-items: center; width: 30px; height: 30px; cursor: pointer; }
.s9e .s9e__cb input { position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer; }
.s9e .s9e__cbbox { width: 26px; height: 26px; border: 1.5px solid var(--e-ink); background: #fff; display: grid; place-items: center; }
.s9e .s9e__cb input:checked + .s9e__cbbox { background: var(--e-ink); }
.s9e .s9e__cb input:checked + .s9e__cbbox::after { content: ''; width: 7px; height: 13px; border: solid #fff; border-width: 0 2px 2px 0; transform: translateY(-2px) rotate(45deg); }
.s9e .s9e__cb input:focus-visible + .s9e__cbbox { outline: 2px solid var(--e-ink); outline-offset: 3px; }

/* anatomy */
.s9e .s9e__anat { display: grid; grid-template-columns: auto 1fr; gap: 2.4rem; align-items: center; }
.s9e .s9e__anat-sw { position: relative; padding: 0 0 2.4rem; justify-self: center; }
.s9e .s9e__dim { position: absolute; bottom: 0.4rem; height: 12px; border-left: 1px solid var(--e-ink2); border-right: 1px solid var(--e-ink2); transition: opacity 0.2s; }
.s9e .s9e__dim::before { content: ''; position: absolute; left: 0; right: 0; top: 50%; border-top: 1px dashed var(--e-ink2); }
.s9e .s9e__dim span { position: absolute; top: 14px; left: 50%; transform: translateX(-50%); font-size: 0.7rem; white-space: nowrap; color: var(--e-mid); }
.s9e .s9e__legend { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.2rem; }
.s9e .s9e__legend li { display: grid; gap: 2px; padding: 0.7rem 0.9rem; border-left: 2px solid transparent; cursor: default; outline: none; }
.s9e .s9e__legend li:hover, .s9e .s9e__legend li:focus { border-color: var(--e-ink); background: var(--e-paper); }
.s9e .s9e__legend b { font-weight: 500; }
.s9e .s9e__legend span { color: var(--e-mid); font-size: 0.85rem; }
.s9e .s9e__anat[data-hl] .s9sw__knob, .s9e .s9e__anat[data-hl] .s9sw__track, .s9e .s9e__anat[data-hl] .s9e__dim { transition: opacity 0.2s, box-shadow 0.2s; }
.s9e .s9e__anat[data-hl='knob'] .s9sw__track { opacity: 0.35; }
.s9e .s9e__anat[data-hl='knob'] .s9sw__knob { box-shadow: 0 0 0 3px var(--e-accent), 0 3px 10px rgba(15, 15, 14, 0.2); }
.s9e .s9e__anat[data-hl='knob'] .s9e__dim { opacity: 0.2; }
.s9e .s9e__anat[data-hl='fill'] .s9sw__track { box-shadow: 0 0 0 3px var(--e-accent); }
.s9e .s9e__anat[data-hl='fill'] .s9sw__knob, .s9e .s9e__anat[data-hl='fill'] .s9e__dim { opacity: 0.25; }
.s9e .s9e__anat[data-hl='travel'] .s9e__dim { border-color: var(--e-accent); }
.s9e .s9e__anat[data-hl='travel'] .s9e__dim::before { border-top: 2px solid var(--e-accent); }
.s9e .s9e__anat[data-hl='travel'] .s9e__dim span { color: var(--e-ink); font-weight: 500; }

/* controls */
.s9e .s9e__ctl { display: grid; gap: 0.35rem; min-width: 11rem; flex: 1 1 11rem; max-width: 17rem; font-size: 0.82rem; }
.s9e .s9e__ctl-top { display: flex; justify-content: space-between; gap: 1rem; color: var(--e-ink2); }
.s9e .s9e__val { font-variant-numeric: tabular-nums; color: var(--e-ink); font-weight: 500; }
.s9e.s9e input[type='range'] { -webkit-appearance: none; appearance: none; width: 100%; height: 22px; background: transparent; margin: 0; cursor: pointer; }
.s9e.s9e input[type='range']::-webkit-slider-runnable-track { height: 2px; background: var(--e-line2); }
.s9e.s9e input[type='range']::-moz-range-track { height: 2px; background: var(--e-line2); }
.s9e.s9e input[type='range']::-webkit-slider-thumb { -webkit-appearance: none; width: 16px; height: 16px; margin-top: -7px; border-radius: 50%; background: var(--e-ink); border: 2px solid #fff; box-shadow: 0 0 0 1px var(--e-ink); }
.s9e.s9e input[type='range']::-moz-range-thumb { width: 14px; height: 14px; border-radius: 50%; background: var(--e-ink); border: 2px solid #fff; box-shadow: 0 0 0 1px var(--e-ink); }
.s9e.s9e input[type='range']:focus-visible { outline: 2px solid var(--e-ink); outline-offset: 2px; }
.s9e .s9e__btn { font: inherit; font-size: 0.85rem; min-height: 38px; padding: 0 1rem; border: 1px solid var(--e-line2); background: var(--e-paper); color: var(--e-ink); cursor: pointer; transition: border-color 0.15s, background 0.15s, color 0.15s; }
.s9e .s9e__btn:hover { border-color: var(--e-ink); }
.s9e .s9e__btn.is-on, .s9e .s9e__btn--ink { background: var(--e-ink); color: #fff; border-color: var(--e-ink); }
.s9e .s9e__btn:focus-visible { outline: 2px solid var(--e-ink); outline-offset: 2px; }
.s9e .s9e__check { display: inline-flex; gap: 0.5rem; align-items: center; font-size: 0.85rem; min-height: 38px; cursor: pointer; }
.s9e .s9e__check input { width: 16px; height: 16px; accent-color: var(--e-ink); margin: 0; }

/* spring graph */
.s9e .s9e__spring { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 2.4rem; align-items: center; }
.s9e .s9e__graphw { display: grid; gap: 0.5rem; }
.s9e .s9e__graph { width: 100%; height: auto; background: var(--e-paper); border: 1px solid var(--e-line); }
.s9e .s9e__gl { stroke: var(--e-line); stroke-width: 1; }
.s9e .s9e__gl--target { stroke-dasharray: 3 4; stroke: var(--e-line2); }
.s9e .s9e__gp { fill: none; stroke: var(--e-ink); stroke-width: 2; vector-effect: non-scaling-stroke; }
.s9e .s9e__gp--ghost { stroke: var(--e-mid); stroke-dasharray: 4 4; stroke-width: 1.5; }
.s9e .s9e__gd { fill: var(--e-accent); stroke: #fff; stroke-width: 2; transition: opacity 0.3s; }
.s9e .s9e__key { display: inline-block; width: 18px; height: 0; border-top: 2px solid var(--e-ink); vertical-align: middle; margin-right: 6px; }
.s9e .s9e__key--ghost { border-top: 1.5px dashed var(--e-mid); margin-left: 12px; }

/* playground */
.s9e .s9e__play { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 2.4rem; align-items: center; }
.s9e .s9e__play-sw { display: grid; place-items: center; padding: 1rem 0; min-width: 0; }
.s9e .s9e__row.s9e__presets { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; width: 100%; }
.s9e .s9e__presets .s9e__btn { min-width: 0; padding: 0 0.4rem; white-space: nowrap; }
.s9e .s9e__presets .s9e__btn + .s9e__btn { margin-left: -1px !important; }
.s9e .s9e__presets .s9e__btn.is-on { border-color: var(--e-ink); }
.s9e .s9e__presets .s9e__btn:hover, .s9e .s9e__presets .s9e__btn.is-on, .s9e .s9e__presets .s9e__btn:focus-visible { position: relative; z-index: 1; }
.s9e .s9e__play-ctl { display: grid; gap: 0.9rem; }
.s9e .s9e__play-ctl .s9e__ctl { max-width: none; }
.s9e .s9e__code { margin: 0; padding: 1rem 1.1rem; background: var(--e-ink); color: #e9e9e4; font: 0.8rem/1.55 ui-monospace, 'SF Mono', Menlo, monospace; overflow-x: auto; white-space: pre; }

@container (max-width: 560px) {
  .s9e .s9e__anat, .s9e .s9e__spring, .s9e .s9e__play { grid-template-columns: 1fr; gap: 1.6rem; }
  .s9e .s9e__row { gap: 2rem 1.4rem; }
  .s9e .s9e__row:not(.s9e__row--ctl):not(.s9e__presets) { flex-wrap: nowrap; gap: 1rem; }
  .s9e .s9e__row > .s9e__cell { flex: 1 1 0; min-width: 0; }
  .s9e .s9e__row--ctl { gap: 1rem; }
  .s9e .s9e__row--ctl > .s9e__ctl { flex: 1 1 100%; max-width: none; }
  .s9e .s9e__row--ctl > .s9e__btn { flex: 1 1 auto; }
  .s9e .s9e__play-sw { padding: 0.4rem 0 0; }
  .s9e .s9e__legend li { padding: 0.6rem 0.8rem; }
}
@container (max-width: 270px) {
  .s9e .s9e__row.s9e__row--big.s9e__row--big.s9e__row--big { flex-wrap: wrap; gap: 1.6rem 1rem; }
  .s9e .s9e__row--big > .s9e__cell { flex: 0 1 40%; }
  .s9e .s9e__row.s9e__presets { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .s9e .s9e__presets .s9e__btn:nth-child(3), .s9e .s9e__presets .s9e__btn:nth-child(4) { margin-top: -1px !important; }
  .s9e .s9e__presets .s9e__btn:nth-child(3) { margin-left: 0 !important; }
}