/* =====================================================================
   XIRAIYA — UI Kit (Figma-style workspace)
   ===================================================================== */

.kit-hero { padding-bottom: clamp(28px, 4vw, 44px); }
.ki-copy { display: inline-flex; gap: 6px; align-items: center; height: 26px; padding: 0 9px; border-radius: 6px; font-size: 11.5px; font-weight: 600; color: var(--ink-2); background: rgba(var(--fx),.06); }
.ki-copy:hover { background: var(--red); color: #fff; }

/* present mode */
.present { position: fixed; inset: 0; z-index: 160; display: flex; flex-direction: column; background: #0f0d0b; animation: popIn .35s var(--ease-out); }
@keyframes popIn { from { opacity: 0; transform: scale(.98); } }
.present-bar { display: flex; align-items: center; gap: 16px; height: 58px; padding: 0 16px; border-bottom: 1px solid var(--line); font-size: 13px; }
.present-bar b { font-size: 15px; }
.present-nav { margin-left: auto; display: flex; gap: 6px; }
.present-nav button { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 4px; border: 1px solid var(--line-2); }
.present-nav button:hover { background: rgba(255,255,255,.06); }
.present-stage { flex: 1; min-height: 0; overflow: auto; display: grid; place-items: center; padding: 40px 20px; background-image: radial-gradient(rgba(255,255,255,.05) 1px, transparent 1.2px); background-size: 22px 22px; }
.present-stage > .pv { padding: var(--pad, 40px); background: var(--fbg, #15120f); border-radius: 6px; max-width: 100%; overflow: auto; }

/* cta */
.kit-cta-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: clamp(28px, 5vw, 70px); align-items: center; }
.kit-cta-grid .section-head { margin-bottom: 0; }
.kit-perks { display: grid; gap: 12px; }
.kit-perks li { display: flex; gap: 16px; padding: 20px; border-radius: 6px; border: 1px solid var(--line); background: rgba(255,255,255,.02); }
.kit-perks .ic { flex: none; font-size: 24px; color: var(--red); margin-top: 2px; }
.kit-perks b { display: block; margin-bottom: 4px; }
.kit-perks p { color: var(--ink-2); font-size: 14.5px; }

/* =====================================================================
   v3.2 — specimen hero, rulers + peers, anatomy, motion, release notes
   ===================================================================== */
:root { --rl: #e5206f; }
html[data-mode="ink"] { --rl: #ff4f93; }

/* hero */
.kx-hero .kanji-bg, .kx-hero .glow { display: none; }
.kx-hero-in { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr); gap: clamp(28px, 5vw, 80px); align-items: center; }
.kx-file { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin: 26px 0 6px; font: 500 12.5px/1.4 var(--font-mono); color: var(--ink-2); }
.kx-file b { color: var(--ink); padding: 2px 7px; border-radius: 5px; background: rgba(var(--fx), .07); }
.kx-live { width: 8px; height: 8px; border-radius: 50%; background: #1fb57a; box-shadow: 0 0 0 0 rgba(31,181,122,.5); animation: kxLive 2.4s infinite; }
@keyframes kxLive { 70% { box-shadow: 0 0 0 8px rgba(31,181,122,0); } 100% { box-shadow: 0 0 0 0 rgba(31,181,122,0); } }
.kx-title { margin: 6px 0 18px; }
.kx-meta { display: grid; grid-template-columns: repeat(4, auto); justify-content: start; margin: 26px 0 30px; border-top: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2); }
.kx-meta div { padding: 12px 26px 12px 0; margin-right: 26px; border-right: 1px solid var(--line); }
.kx-meta div:last-child { border-right: 0; margin-right: 0; }
.kx-meta dt { font: 500 10.5px/1 var(--font-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 8px; }
.kx-meta dd { margin: 0; font: 800 28px/1 var(--font-display); color: var(--ink); font-variant-numeric: tabular-nums; }

.kx-board {
  --r: 12px; position: relative; display: grid; grid-template-columns: 1.25fr 1fr; grid-auto-rows: auto; gap: 14px; padding: 42px 22px 22px;
  border: 1px solid var(--line-2); border-radius: 4px; background-color: var(--surface);
  background-image: radial-gradient(rgba(var(--fx), .13) 1px, transparent 1.3px); background-size: 16px 16px; box-shadow: var(--shadow-lg);
}
.kx-flabel { position: absolute; left: 0; top: -22px; display: flex; align-items: center; gap: 6px; font: 500 11.5px/1 var(--font-body); color: #0d99ff; }
.kx-flabel .ic { font-size: 12px; }
.kx-sp { position: relative; padding: 30px 18px 18px; border-radius: 3px; background: var(--bg); box-shadow: 0 0 0 1px var(--line); }
.kx-tag { position: absolute; left: 12px; top: 10px; font: 500 10px/1 var(--font-mono); letter-spacing: .06em; color: var(--ink-3); }
.kx-sp-btn { grid-row: span 2; display: grid; place-items: center; min-height: 230px; }
.kx-bw { position: relative; }
.kx-sbtn { position: relative; display: inline-flex; align-items: center; gap: 10px; padding: 14px 22px; border-radius: var(--r); background: var(--red); color: var(--on-red); font: 700 15px/1 var(--font-body); box-shadow: 0 10px 24px -12px var(--red); transition: transform .25s var(--ease-spring), box-shadow .25s, border-radius .2s; }
.kx-sbtn:hover { transform: translateY(-2px); box-shadow: 0 16px 30px -12px var(--red); }
.kx-sbtn:active { transform: scale(.96); }
.kx-sbtn.done { background: #1f8a5b; box-shadow: 0 10px 24px -12px #1f8a5b; }
.rl { position: absolute; pointer-events: none; }
.rl b { position: absolute; padding: 2px 4px; border-radius: 3px; background: var(--rl); color: #fff; font: 600 9.5px/1 var(--font-mono); white-space: nowrap; }
.rl-x { left: 0; top: -16px; width: 22px; height: 7px; border: 1px solid var(--rl); border-top: 0; border-bottom: 0; }
.rl-x::after { content: ''; position: absolute; left: 0; right: 0; top: 3px; border-top: 1px solid var(--rl); }
.rl-x b { left: 50%; top: -14px; transform: translateX(-50%); }
.rl-y { left: -16px; top: 0; height: 14px; width: 7px; border: 1px solid var(--rl); border-left: 0; border-right: 0; }
.rl-y::after { content: ''; position: absolute; top: 0; bottom: 0; left: 3px; border-left: 1px solid var(--rl); }
.rl-y b { right: 12px; top: 50%; transform: translateY(-50%); }
.rl-r { position: absolute; right: -6px; bottom: -6px; width: 16px; height: 16px; border-right: 1.5px dashed var(--rl); border-bottom: 1.5px dashed var(--rl); border-bottom-right-radius: var(--r); pointer-events: none; }
.rl-r b { position: absolute; left: 22px; top: 10px; padding: 2px 4px; border-radius: 3px; background: var(--rl); color: #fff; font: 600 9.5px/1 var(--font-mono); white-space: nowrap; }
.kx-pin { position: absolute; left: 16px; bottom: 14px; display: flex; align-items: flex-end; gap: 8px; max-width: 250px; }
.kx-pin > span { flex: none; width: 26px; height: 26px; border-radius: 50% 50% 50% 0; display: grid; place-items: center; background: #7c5cff; color: #fff; font: 700 11px/1 var(--font-body); box-shadow: 0 0 0 2px var(--bg); }
.kx-pin p { padding: 8px 10px; border-radius: 10px 10px 10px 2px; background: var(--surface); box-shadow: var(--shadow); font-size: 12px; line-height: 1.4; color: var(--ink-2); opacity: 0; transform: translateY(6px); transition: .4s var(--ease-out); }
.kx-pin p b { color: var(--ink); margin-right: 4px; }
.kx-board:hover .kx-pin p, .kx-pin.on p { opacity: 1; transform: none; }
.kx-sp-ctl { display: grid; gap: 16px; align-content: center; }
.kx-sw { display: flex; align-items: center; gap: 10px; font-size: 13.5px; cursor: pointer; }
.kx-sw input { position: absolute; opacity: 0; pointer-events: none; }
.kx-sw span { position: relative; width: 38px; height: 22px; border-radius: 99px; background: rgba(var(--fx), .2); transition: background .25s; }
.kx-sw span::after { content: ''; position: absolute; left: 3px; top: 3px; width: 16px; height: 16px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.3); transition: transform .3s var(--ease-spring); }
.kx-sw input:checked + span { background: #1f8a5b; }
.kx-sw input:checked + span::after { transform: translateX(16px); }
.kx-sw input:focus-visible + span { outline: 2px solid #0d99ff; outline-offset: 2px; }
.kx-rng { display: grid; gap: 6px; font-size: 12.5px; color: var(--ink-2); }
.kx-rng b { font: 600 12px var(--font-mono); color: var(--ink); }
.kx-rng input { accent-color: var(--red); width: 100%; }
.kx-sp-type { display: grid; grid-template-columns: auto 1fr; gap: 2px 14px; align-items: center; }
.kx-aa { grid-row: span 2; font: 800 54px/1 var(--font-display); color: var(--ink); }
.kx-sp-type p { font: 500 10.5px/1.3 var(--font-mono); color: var(--ink-3); }
.kx-sp-type p span { display: block; font: 600 12.5px/1.3 var(--font-body); color: var(--ink); }
.kx-sp-col { grid-column: 1 / -1; }
.kx-sp-col ul { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.kx-sp-col li { display: grid; gap: 4px; font: 600 12px/1.2 var(--font-body); color: var(--ink); }
.kx-sp-col li i { height: 34px; border-radius: calc(var(--r) * .6); background: var(--c); box-shadow: inset 0 0 0 1px rgba(var(--fx), .14); transition: border-radius .2s; }
.kx-sp-col code { font: 500 9.5px/1 var(--font-mono); color: var(--ink-3); }
.kx-toast { position: absolute; right: -14px; top: 40%; display: flex; align-items: center; gap: 9px; padding: 11px 14px; border-radius: var(--r); background: var(--ink); color: var(--bg); font-size: 13px; font-weight: 600; box-shadow: var(--shadow-lg); transform: translateX(10px); opacity: 0; transition: opacity .4s, transform .5s var(--ease-out), border-radius .2s; z-index: 3; }
.kx-toast svg { color: #36d399; }
.kx-toast.on { opacity: 1; transform: none; }

/* section heads */
.kx-head { max-width: 760px; margin-bottom: clamp(30px, 4vw, 50px); }
.kx-head .num { display: inline-flex; align-items: center; gap: 10px; font: 500 12px/1 var(--font-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-2); }
.kx-head h2 { margin: 14px 0 12px; }
.kx-head h2 em { font-style: italic; color: var(--red); }

/* anatomy */
.kx-anat-grid { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 20px; align-items: start; }
.kx-spec { --acc: #c4321d; --on: #fff8ee; --rad: 12px; --py: 14px; --px: 22px; --fs: 15px; --wt: 700; border: 1px solid var(--line-2); border-radius: 4px; background: var(--surface); overflow: hidden; }
.kx-stage { position: relative; height: 380px; display: grid; place-items: center; background-image: linear-gradient(rgba(var(--fx), .05) 1px, transparent 1px), linear-gradient(90deg, rgba(var(--fx), .05) 1px, transparent 1px); background-size: 24px 24px; }
.kx-btn { display: inline-flex; align-items: center; gap: calc(var(--px) * .45); padding: var(--py) var(--px); border-radius: var(--rad); background: var(--acc); color: var(--on); font: var(--wt) var(--fs)/1 var(--font-body); box-shadow: 0 10px 24px -12px var(--acc); transition: transform .2s var(--ease-spring), box-shadow .2s, filter .2s, border-radius .2s, padding .2s; white-space: nowrap; }
.kx-btn .kx-ico { width: 18px; height: 18px; flex: none; }
.kx-big { transform: scale(1.9); transform-origin: center; }
.kx-big:hover { filter: brightness(1.06); }
.kx-lines { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; overflow: visible; }
.kx-lines line { stroke: var(--rl); stroke-width: 1; }
.kx-lines circle { fill: var(--surface); stroke: var(--rl); stroke-width: 1.5; }
.kx-lines rect { fill: rgba(229, 32, 111, .08); stroke: var(--rl); stroke-dasharray: 3 3; }
.kx-callouts { position: absolute; inset: 0; pointer-events: none; }
.kx-callouts li { position: absolute; display: flex; gap: 8px; align-items: baseline; font-size: 12.5px; color: var(--ink-2); white-space: nowrap; }
.kx-callouts li b { display: inline-grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; background: var(--rl); color: #fff; font: 700 10px/1 var(--font-mono); flex: none; transform: translateY(3px); }
.kx-callouts li span b { all: unset; color: var(--ink); font-weight: 700; }
.kx-callouts li.r { flex-direction: row-reverse; }
.kx-states { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); border-top: 1px solid var(--line-2); }
.kx-states > div { display: grid; justify-items: center; gap: 12px; padding: 20px 8px 16px; border-right: 1px solid var(--line); }
.kx-states > div:last-child { border-right: 0; }
.kx-states small { font: 500 10.5px/1 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }
.kx-states .kx-btn { zoom: .8; pointer-events: none; }
.kx-btn.s-hover { filter: brightness(1.1); transform: translateY(-2px); box-shadow: 0 14px 26px -12px var(--acc); }
.kx-btn.s-press { transform: scale(.95); box-shadow: 0 4px 10px -6px var(--acc); filter: brightness(.92); }
.kx-btn.s-focus { outline: 3px solid color-mix(in srgb, var(--acc) 45%, transparent); outline-offset: 2px; }
.kx-btn.s-load .kx-ico { animation: kxSpin .8s linear infinite; }
@keyframes kxSpin { to { transform: rotate(360deg); } }
.kx-btn.s-dis { background: rgba(var(--fx), .12); color: var(--ink-3); box-shadow: none; }

.kx-tok { position: sticky; top: calc(var(--header-h) + 16px); display: grid; gap: 18px; padding: 22px; border: 1px solid var(--line-2); border-radius: 4px; background: var(--surface); }
.kx-tok h3 { font: 600 12px/1 var(--font-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); }
.kx-ctl { display: grid; gap: 9px; }
.kx-ctl > span { display: flex; justify-content: space-between; font-size: 13.5px; font-weight: 600; color: var(--ink); }
.kx-ctl > span b { font: 500 12px var(--font-mono); color: var(--ink-2); }
.kx-ctl input[type=range] { width: 100%; accent-color: var(--red); }
.kx-acc { display: flex; gap: 8px; }
.kx-acc button { width: 32px; height: 32px; border-radius: 50%; background: var(--c); position: relative; box-shadow: inset 0 0 0 1px rgba(var(--fx), .15); }
.kx-acc button[aria-checked=true]::after { content: ''; position: absolute; inset: -4px; border-radius: 50%; border: 2px solid var(--ink); }
.kx-seg { display: flex; padding: 3px; border-radius: 8px; background: rgba(var(--fx), .06); }
.kx-seg button { flex: 1; height: 32px; border-radius: 6px; font-size: 12.5px; font-weight: 600; color: var(--ink-2); }
.kx-seg button[aria-checked=true] { background: var(--surface); color: var(--ink); box-shadow: var(--shadow-sm); }
.kx-crbar { position: relative; height: 6px; border-radius: 3px; background: rgba(var(--fx), .1); }
.kx-crbar i { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 3px; background: #1f8a5b; transition: width .4s, background .3s; }
.kx-crbar s { position: absolute; top: -3px; bottom: -3px; width: 2px; background: var(--ink); }
.kx-out { border-radius: 6px; overflow: hidden; border: 1px solid var(--line); }
.kx-out-h { display: flex; justify-content: space-between; align-items: center; padding: 8px 10px; background: rgba(var(--fx), .05); font: 500 11px/1 var(--font-mono); color: var(--ink-3); }
.kx-out-h .ki-copy { color: var(--ink-2); background: rgba(var(--fx), .07); }
.kx-out .code { margin: 0; border: 0; border-radius: 0; font-size: 11.5px; line-height: 1.7; padding: 12px; white-space: pre; overflow-x: auto; max-height: none; }

/* motion */
.kx-mo-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); border: 1px solid var(--line-2); border-radius: 4px; background: var(--surface); overflow: hidden; }
.kx-graph { padding: 22px; border-right: 1px solid var(--line-2); display: grid; gap: 16px; align-content: start; }
.kx-graph svg { width: 100%; max-width: 440px; margin: 0 auto; display: block; touch-action: none; user-select: none; overflow: visible; }
.kx-graph .gridl { stroke: rgba(var(--fx), .09); }
.kx-graph .box { fill: none; stroke: rgba(var(--fx), .25); }
.kx-graph .lin { stroke: rgba(var(--fx), .2); stroke-dasharray: 4 5; }
.kx-graph .crv { fill: none; stroke: var(--red); stroke-width: 3.5; stroke-linecap: round; }
.kx-graph .arm { stroke: var(--ink-3); stroke-width: 1.5; }
.kx-graph .hd { fill: var(--surface); stroke: var(--ink); stroke-width: 2.5; cursor: grab; }
.kx-graph .hd:hover, .kx-graph .hd.drag { fill: var(--red); stroke: var(--red); }
.kx-graph .hd.drag { cursor: grabbing; }
.kx-graph .prog { fill: var(--red); }
.kx-graph text { font: 500 12px var(--font-mono); fill: var(--ink-3); }
.kx-presets { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; }
.kx-presets button { height: 32px; padding: 0 12px; border-radius: 99px; border: 1px solid var(--line-2); font-size: 12.5px; font-weight: 600; color: var(--ink-2); }
.kx-presets button:hover { color: var(--ink); border-color: var(--ink-3); }
.kx-presets button[aria-pressed=true] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.kx-play { padding: 22px; display: grid; gap: 14px; align-content: start; }
.kx-lane { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 14px; align-items: center; min-height: 86px; padding-bottom: 14px; border-bottom: 1px dashed var(--line-2); }
.kx-lane > span { font: 500 11px/1 var(--font-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); }
.kx-track { position: relative; height: 34px; border-radius: 99px; background: rgba(var(--fx), .06); }
.kx-track i { position: absolute; left: 4px; top: 4px; width: 26px; height: 26px; border-radius: 50%; background: var(--red); box-shadow: 0 6px 14px -6px var(--red); }
.kx-card-wrap, .kx-menu-wrap { height: 72px; display: flex; align-items: center; }
.kx-card { display: grid; gap: 2px; padding: 12px 16px; border-radius: 12px; background: var(--ink); color: var(--bg); box-shadow: var(--shadow); transform-origin: left center; }
.kx-card b { font-size: 14px; } .kx-card small { font-size: 12px; opacity: .7; }
.kx-menu { display: flex; gap: 4px; padding: 5px; border-radius: 10px; background: var(--bg); box-shadow: 0 0 0 1px var(--line-2), var(--shadow); transform-origin: left center; }
.kx-menu i { font-style: normal; font-size: 12.5px; padding: 7px 10px; border-radius: 6px; color: var(--ink-2); white-space: nowrap; }
.kx-menu i:first-child { background: rgba(var(--fx), .07); color: var(--ink); }
.kx-menu i.red { color: var(--red); }
.kx-pctl { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.kx-pctl label { display: grid; gap: 4px; font-size: 12.5px; color: var(--ink-2); flex: 1; min-width: 160px; }
.kx-pctl label b { font: 600 12px var(--font-mono); color: var(--ink); }
.kx-pctl input[type=range] { accent-color: var(--red); width: 100%; }
.kx-pctl .kx-loop { display: flex; align-items: center; gap: 6px; flex: none; min-width: 0; }

/* release notes */
.kx-log { position: relative; display: grid; gap: 0; padding-left: 26px; }
.kx-log::before { content: ''; position: absolute; left: 6px; top: 8px; bottom: 8px; width: 2px; background: var(--line-2); }
.kx-log > li { position: relative; padding: 0 0 22px; }
.kx-log > li::before { content: ''; position: absolute; left: -25px; top: 5px; width: 12px; height: 12px; border-radius: 50%; background: var(--bg); border: 2px solid var(--ink-3); }
.kx-log > li:first-child::before { border-color: var(--red); background: var(--red); box-shadow: 0 0 0 4px rgba(196, 50, 29, .15); }
.kx-lv { display: flex; align-items: baseline; gap: 10px; margin-bottom: 8px; }
.kx-lv b { font: 700 13px/1 var(--font-mono); padding: 4px 8px; border-radius: 5px; background: var(--ink); color: var(--bg); }
.kx-log > li:not(:first-child) .kx-lv b { background: rgba(var(--fx), .1); color: var(--ink); }
.kx-lv time { font: 500 12px var(--font-mono); color: var(--ink-3); }
.kx-log ul { display: grid; gap: 5px; }
.kx-log ul li { display: grid; grid-template-columns: 52px minmax(0, 1fr); gap: 10px; font-size: 14.5px; color: var(--ink-2); }
.kx-log ul li::before { flex: none; width: 46px; font: 600 10px/1.9 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; }
.kx-log .add::before { content: 'added'; color: #1f8a5b; }
.kx-log .chg::before { content: 'change'; color: var(--gold); }
.kx-log .fix::before { content: 'fixed'; color: var(--violet); }
.kx-log code { font-size: 12.5px; }

@media (max-width: 1100px) {
  .kx-hero-in { grid-template-columns: 1fr; }
  .kx-board { max-width: 680px; }
  .kx-anat-grid { grid-template-columns: 1fr; }
  .kx-tok { position: relative; top: 0; }
  .kx-mo-grid { grid-template-columns: 1fr; }
  .kx-graph { border-right: 0; border-bottom: 1px solid var(--line-2); }
}
@media (max-width: 640px) {
  .kx-meta { grid-template-columns: repeat(2, auto); }
  .kx-meta div:nth-child(2) { border-right: 0; }
  .kx-meta div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .kx-board { grid-template-columns: 1fr; padding: 36px 14px 14px; }
  .kx-sp-btn { grid-row: auto; min-height: 200px; }
  .kx-sp-col ul { grid-template-columns: repeat(3, 1fr); }
  .kx-toast { right: 8px; top: auto; bottom: -18px; }
  .kx-stage { height: 300px; }
  .kx-big { transform: scale(1.3); }
  .kx-callouts li { font-size: 11px; }
  .kx-callouts li span { display: none; }
  .kx-states { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .kx-states .kx-btn { zoom: .68; }
  .kx-states > div:nth-child(3) { border-right: 0; }
  .kx-states > div:nth-child(-n+3) { border-bottom: 1px solid var(--line); }
}
@media (prefers-reduced-motion: reduce) {
  .kx-live { animation: none; }
}

/* =====================================================================
   Components, category by category (replaces the old dark workspace)
   ===================================================================== */
.kb { padding-bottom: clamp(40px, 6vw, 80px); }
.kb-nav { position: sticky; top: var(--header-h); z-index: 20; padding: 10px 0; background: rgba(var(--bg-rgb), .9); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border-block: 1px solid var(--line); transition: top .6s var(--ease-out); }
body:has(.site-header.is-hidden) .kb-nav { top: 0; }
.kb-nav-in { display: flex; align-items: center; gap: 14px; }
.kb-nav-chips { display: flex; gap: 6px; flex: 1; min-width: 0; overflow-x: auto; scrollbar-width: none; }
.kb-nav-chips::-webkit-scrollbar { display: none; }
.kb-nav-chips a { flex: none; display: inline-flex; align-items: center; gap: 7px; height: 34px; padding: 0 13px; border-radius: 999px; border: 1px solid var(--line-2); font-size: 13px; font-weight: 600; color: var(--ink-2); transition: .2s; }
.kb-nav-chips a b { font: 500 10.5px/1 var(--font-mono); color: var(--ink-3); }
.kb-nav-chips a:hover { color: var(--ink); border-color: var(--ink-3); }
.kb-nav-chips a.on { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.kb-nav-chips a.on b { color: var(--bg); opacity: .7; }
.kb-search { flex: none; display: flex; align-items: center; gap: 8px; height: 38px; padding: 0 12px; border-radius: 10px; border: 1px solid var(--line-2); background: var(--surface); width: 300px; }
.kb-search:focus-within { border-color: var(--red); }
.kb-search .ic { color: var(--ink-3); }
.kb-search input { flex: 1; min-width: 0; border: 0; background: none; outline: none; font-size: 13.5px; }
.kb-found { font: 500 10.5px/1 var(--font-mono); color: var(--ink-3); white-space: nowrap; }
.pg-sec { scroll-margin-top: calc(var(--header-h) + 70px); }
.pg-stage { --fbg: #15120f; height: 440px; background: var(--fbg); overflow: hidden; }
.pg-stage.tall { height: 560px; }
.pg-stage::after { content: ''; position: absolute; inset: 0; pointer-events: none; background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px); background-size: 24px 24px; }
.pg-fit { position: relative; z-index: 1; padding: var(--pad, 32px); max-width: 1100px; transition: filter .3s; }
.pg-name { position: absolute; left: 14px; top: 12px; z-index: 3; padding: 4px 8px; border-radius: 4px; background: rgba(13,153,255,.14); color: #3aa8ff; font: 500 11px/1 var(--font-mono); }
.pg-lines { z-index: 2; }
.pg-lines rect { fill: none; stroke: var(--rl); stroke-width: 1; stroke-dasharray: 4 3; }
.pg-lines rect.sub { stroke-opacity: .45; stroke-dasharray: 2 3; }
.pg-lines .tag rect { fill: var(--rl); stroke: none; }
.pg-lines .tag text { font: 600 10px var(--font-mono); fill: #fff; }
.pg-vars { display: flex; flex-wrap: wrap; border-top: 1px solid var(--line-2); }
.pg-vars button { flex: 1 1 150px; display: grid; gap: 4px; justify-items: start; padding: 14px 16px; text-align: left; font-size: 13.5px; font-weight: 600; color: var(--ink-2); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background .2s, color .2s; }
.pg-vars button small { font: 500 10.5px/1 var(--font-mono); color: var(--ink-3); letter-spacing: .08em; }
.pg-vars button:hover { background: rgba(var(--fx), .04); color: var(--ink); }
.pg-vars button[aria-selected=true] { color: var(--ink); background: rgba(var(--fx), .06); box-shadow: inset 0 -3px 0 var(--red); }
.pg-vars button[aria-selected=true] small { color: var(--red); }
.pg-note { font-size: 13.5px; line-height: 1.55; color: var(--ink-2); min-height: 3em; }
.pg-rl { margin: -4px 0 0; }
.pg-langs { display: flex; gap: 2px; min-width: 0; overflow-x: auto; }
.pg-langs button { height: 24px; padding: 0 8px; border-radius: 5px; font: 500 11px/1 var(--font-mono); color: var(--ink-3); white-space: nowrap; }
.pg-langs button[aria-selected=true] { background: var(--surface); color: var(--ink); box-shadow: var(--shadow-sm); }
.pg-acts { display: flex; gap: 4px; flex: none; }
.pg-code { max-height: 260px !important; overflow: auto !important; }
@media (max-width: 760px) {
  .kb-nav-in { flex-direction: column; align-items: stretch; gap: 8px; }
  .kb-search { width: 100%; }
  .pg-stage { height: 320px; }
  .pg-stage.tall { height: 400px; }
  .pg-vars button { flex-basis: 50%; }
}

@media (max-width: 960px) { .kit-cta-grid { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 640px) {
  .kx-menu-wrap { height: auto; }
  .kx-menu { flex-wrap: wrap; }
  .kx-lane { grid-template-columns: minmax(0, 1fr); gap: 8px; }
}

/* phones: 44px tap targets for bench controls */
@media (max-width: 640px) {
  .kx-seg button, .kx-presets button, .ki-copy, .pg-langs button, .kb-nav-chips a, .kb-search { min-height: 44px; }
  .kx-acc button { width: 44px; height: 44px; }
  .kit-cta-grid .flex.wrap > .btn, .kx-copy .flex.wrap > .btn { flex: 1 1 220px; justify-content: center; }
}