/* ============================================================
   LIVE COMPONENT (How I work: Design systems head)
   One composition in three steps: a Button, a Field that holds that Button,
   and a PromptInput built from both. Each step can be used (click, type,
   attach, send) and configured (the properties under it). Brand and Size are
   shared by all three, so a change made on the Button is already there on
   the Prompt: the page's argument, shown instead of stated.

     brand layer    [data-brand]      colour, type, shape, depth
     size layer     [data-size]       control height, type size, padding
     theme layer    [data-sp-theme]   light / dark, follows the site's switch
     components     read only the --s-*, --z-* and --b-* tokens

   The frame keeps one size on every step: the stage has a fixed height and
   the properties panel always has four rows. Hovering a part selects it the
   way the site's inspector does (blue box, handles, a label).
   ============================================================ */

@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:400;font-display:swap;
  src:url(../fonts/spacegrotesk-400-latin.woff2) format('woff2');}
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:500;font-display:swap;
  src:url(../fonts/spacegrotesk-500-latin.woff2) format('woff2');}

/* ---------- brand layer ---------- */
/* Harbor: the calm product default. Inter, rounded, flat with a soft lift. */
.specimen[data-brand="harbor"]{
  --b-font:'Inter',system-ui,sans-serif; --b-weight:500; --b-case:none; --b-track:-.005em; --b-label:1;
  --b-radius:10px; --b-radius-box:12px; --b-radius-panel:16px; --b-bw:1px;
  --b-fill-l:#155dfc; --b-solid-l:#155dfc; --b-on-l:#fff; --b-text-l:#155dfc; --b-soft-l:#dbeafe;
  --b-fill-d:#155dfc; --b-solid-d:#2b7fff; --b-on-d:#fff; --b-text-d:#51a2ff; --b-soft-d:#162456;
  --b-lift:0 1px 2px rgba(21,93,252,.28),0 2px 6px -2px rgba(21,93,252,.25);
  --b-box-shadow:0 1px 2px rgba(24,24,27,.05);
  --b-press:translateY(1px) scale(.98);
}
/* Bloom: a consumer brand. Space Grotesk, pills, a gradient and a glow. */
.specimen[data-brand="bloom"]{
  --b-font:'Space Grotesk','Inter',system-ui,sans-serif; --b-weight:500; --b-case:none; --b-track:-.01em; --b-label:1;
  --b-radius:999px; --b-radius-box:999px; --b-radius-panel:26px; --b-bw:1px;
  --b-fill-l:linear-gradient(135deg,#7f22fe 0%,#c800de 55%,#e60076 100%); --b-solid-l:#9810fa; --b-on-l:#fff; --b-text-l:#8200db; --b-soft-l:#f3e8ff;
  --b-fill-d:linear-gradient(135deg,#8e51ff 0%,#e12afb 55%,#f6339a 100%); --b-solid-d:#c27aff; --b-on-d:#fff; --b-text-d:#dab2ff; --b-soft-d:#3c0366;
  --b-lift:0 8px 20px -8px rgba(152,16,250,.65),0 2px 6px -2px rgba(230,0,118,.35);
  --b-box-shadow:0 10px 30px -14px rgba(152,16,250,.45);
  --b-press:scale(.95);
}
/* Ledger: an editorial, technical brand. Mono, square, hard offset shadows. */
.specimen[data-brand="ledger"]{
  --b-font:'Geist Mono',ui-monospace,monospace; --b-weight:500; --b-case:uppercase; --b-track:.05em; --b-label:.86;
  --b-radius:0px; --b-radius-box:0px; --b-radius-panel:0px; --b-bw:1.5px;
  --b-fill-l:#18181b; --b-solid-l:#18181b; --b-on-l:#fff; --b-text-l:#18181b; --b-soft-l:#f4f4f5;
  --b-fill-d:#f4f4f5; --b-solid-d:#f4f4f5; --b-on-d:#09090b; --b-text-d:#f4f4f5; --b-soft-d:#27272a;
  --b-press:translate(3px,3px);
}
/* its hard shadows are a quieter step of the theme's greys than the fill, so
   the shape reads as a block and its shadow, not one heavy mass; the greys
   only exist on the stage, so the tokens are set there */
.specimen[data-brand="ledger"] .sp-stage{
  --b-lift:3px 3px 0 var(--s-line-2);
  --b-box-shadow:4px 4px 0 var(--s-line-2);
  --b-press-shadow:0 0 0 var(--s-line-2);
}

/* ---------- size layer ---------- */
.specimen[data-size="sm"]{--z-h:32px;--z-font:13px;--z-pad:12px;--z-gap:6px;--z-icon:14px;}
.specimen[data-size="md"]{--z-h:40px;--z-font:14px;--z-pad:16px;--z-gap:8px;--z-icon:16px;}
.specimen[data-size="lg"]{--z-h:48px;--z-font:16px;--z-pad:20px;--z-gap:10px;--z-icon:18px;}

/* ---------- theme layer ---------- */
.specimen[data-sp-theme="light"] .sp-stage{
  --s-ground:#fafafa; --s-grid:rgba(24,24,27,.045);
  --s-surface:#ffffff; --s-surface-2:#f4f4f5; --s-line:#d4d4d8; --s-line-2:#a1a1aa;
  --s-ink:#18181b; --s-ink-2:#52525c; --s-ink-3:#9f9fa9;
  --s-fill:var(--b-fill-l); --s-solid:var(--b-solid-l); --s-on-fill:var(--b-on-l); --s-brand-text:var(--b-text-l); --s-soft:var(--b-soft-l);
  --s-neg:#e7000b; --s-pos:#008236;
}
.specimen[data-sp-theme="dark"] .sp-stage{
  --s-ground:#09090b; --s-grid:rgba(244,244,245,.045);
  --s-surface:#18181b; --s-surface-2:#27272a; --s-line:#3f3f46; --s-line-2:#71717b;
  --s-ink:#f4f4f5; --s-ink-2:#b4b4bc; --s-ink-3:#71717b;
  --s-fill:var(--b-fill-d); --s-solid:var(--b-solid-d); --s-on-fill:var(--b-on-d); --s-brand-text:var(--b-text-d); --s-soft:var(--b-soft-d);
  --s-neg:#ff6467; --s-pos:#05df72;
}

/* ---------- the frame: one size on every step ---------- */
.specimen{
  --stage-h:300px;
  margin:0;display:grid;grid-template-rows:auto var(--stage-h) auto;
  width:100%;border:1px solid var(--rule);border-radius:14px;background:var(--paper);
  font-family:var(--body);
}
/* side by side, the whole head has to fit the first screen: the stage gives
   up height on short screens (never below what the prompt needs), and the
   frame keeps a margin above the fold */
@media (min-width:960px){
  .specimen{--stage-h:clamp(232px,calc(100vh - 452px),300px);}
  @supports (height:100svh){.specimen{--stage-h:clamp(232px,calc(100svh - 452px),300px);}}
}
@media (max-width:559px){
  .specimen{--stage-h:300px;}
}

.sp-tabs{
  display:grid;grid-template-columns:repeat(3,1fr);gap:2px;
  margin:12px 12px 0;padding:3px;border-radius:10px;background:var(--sink);
}
.sp-tab{
  appearance:none;border:0;border-radius:7px;background:transparent;cursor:pointer;
  padding:7px 8px;font:500 var(--t-sm-size)/1.2 var(--body);color:var(--ink-2);
  transition:background-color .2s,color .2s,box-shadow .2s;
}
.sp-tab[aria-selected="true"]{background:var(--paper);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.08);}
:root[data-theme="dark"] .sp-tab[aria-selected="true"]{background:var(--rule);}
@media (hover:hover){.sp-tab:hover{color:var(--ink);}}

/* the stage */
.sp-stage{
  position:relative;margin:12px 12px 0;border-radius:10px;overflow:hidden;
  background-color:var(--s-ground);
  background-image:
    linear-gradient(var(--s-grid) 1px,transparent 1px),
    linear-gradient(90deg,var(--s-grid) 1px,transparent 1px);
  background-size:19px 19px;background-position:-1px -1px;
  color:var(--s-ink);font-family:var(--b-font);font-size:var(--z-font);
  transition:background-color .3s,color .3s;
  view-transition-name:sp-stage;
}
::view-transition-old(sp-stage),::view-transition-new(sp-stage){animation-duration:.32s;animation-timing-function:ease;}

/* each step fills the stage; switching steps crossfades in place */
.sp-panel{
  position:absolute;inset:0 0 12px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:28px 22px 8px;
  opacity:0;visibility:hidden;transform:translateY(4px);
  transition:opacity .25s ease,transform .25s ease,visibility 0s linear .25s;
}
.sp-panel.is-bottom{justify-content:flex-end;}
.specimen[data-tab="button"] .sp-panel[data-panel="button"],
.specimen[data-tab="field"] .sp-panel[data-panel="field"],
.specimen[data-tab="prompt"] .sp-panel[data-panel="prompt"]{
  opacity:1;visibility:visible;transform:none;transition:opacity .25s ease,transform .25s ease;
}
/* what to try, until it has been tried */
.sp-hint{
  position:absolute;top:12px;left:0;right:0;margin:0;text-align:center;
  font:500 11px/1 var(--mono);color:var(--s-ink-3);letter-spacing:0;text-transform:none;
  transition:opacity .3s;
}
.sp-hint::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;margin-right:7px;
  background:var(--sel);vertical-align:1px;animation:sp-pulse 1.6s ease-in-out infinite;}
.sp-panel.is-used .sp-hint{opacity:0;}
@keyframes sp-pulse{50%{opacity:.25;}}
/* ---------- selection: the site's inspector box, on the hovered part only ---------- */
.sp-sel{
  position:absolute;left:0;top:0;width:0;height:0;pointer-events:none;z-index:4;
  opacity:0;transition:opacity .15s ease;
}
.sp-sel.is-on{opacity:1;}
.sp-sel.is-moving{transition:opacity .15s ease,left .16s ease,top .16s ease,width .16s ease,height .16s ease;}
.sp-sel .sb{position:absolute;inset:0;border:1px solid var(--sel);}
.sp-sel .sh{position:absolute;width:7px;height:7px;background:var(--paper);border:1px solid var(--sel);}
.sp-sel .tl{left:-4px;top:-4px;} .sp-sel .tr{right:-4px;top:-4px;}
.sp-sel .bl{left:-4px;bottom:-4px;} .sp-sel .br{right:-4px;bottom:-4px;}
.sp-sel .sn{
  position:absolute;left:-1px;bottom:calc(100% + 6px);padding:3px 5px;border-radius:3px;
  font:500 10.5px/1 var(--mono);white-space:nowrap;color:var(--sel-ink);background:var(--sel-text);
}
.sp-sel.is-low .sn{bottom:auto;top:calc(100% + 6px);}

/* ---------- Button ---------- */
.c-btn{
  appearance:none;position:relative;display:inline-flex;align-items:center;justify-content:center;
  height:var(--z-h);padding:0 var(--z-pad);border-radius:var(--b-radius);
  font:var(--b-weight) calc(var(--z-font) * var(--b-label))/1 var(--b-font);letter-spacing:var(--b-track);text-transform:var(--b-case);
  white-space:nowrap;cursor:pointer;border:var(--b-bw) solid transparent;outline:0;
  transition:background .25s,color .25s,border-color .25s,border-radius .3s,box-shadow .2s,height .25s,padding .25s,
             width .25s,font-size .25s,transform .12s cubic-bezier(.3,.7,.4,1),filter .15s,opacity .2s;
}
.c-btn svg{width:var(--z-icon);height:var(--z-icon);fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none;transition:width .25s,height .25s;}
.c-btn[data-variant="primary"]{background:var(--s-fill);color:var(--s-on-fill);box-shadow:var(--b-lift);}
.c-btn[data-variant="secondary"]{background:var(--s-surface);color:var(--s-ink);border-color:var(--s-line);box-shadow:var(--b-box-shadow);}
.specimen[data-brand="ledger"] .c-btn[data-variant="secondary"]{border-color:var(--s-ink);box-shadow:var(--b-lift);}
.specimen[data-brand="ledger"] .c-btn[data-variant="primary"]{border-color:var(--s-solid);}
.c-btn[data-variant="ghost"]{background:transparent;color:var(--s-brand-text);box-shadow:none;}
@media (hover:hover){
  .c-btn[data-variant="primary"]:not(:disabled):hover{filter:brightness(1.1) saturate(1.05);}
  .c-btn[data-variant="secondary"]:not(:disabled):hover{background:var(--s-surface-2);}
  .c-btn[data-variant="ghost"]:not(:disabled):hover{background:var(--s-soft);}
}
/* pressed: each brand presses its own way */
.c-btn:not(:disabled):active{transform:var(--b-press);filter:brightness(.92);}
.specimen[data-brand="ledger"] .c-btn:not(:disabled):active{box-shadow:var(--b-press-shadow);filter:none;}
.c-btn[aria-pressed="true"]{background:var(--s-soft);color:var(--s-brand-text);border-color:var(--s-solid);}
.c-btn:focus-visible{box-shadow:0 0 0 2px var(--s-surface),0 0 0 4px var(--s-solid);}
.c-btn:disabled{cursor:not-allowed;opacity:.4;box-shadow:none;}
.c-btn.is-icon{width:var(--z-h);padding:0;}
.c-btn .lbl{display:inline-flex;align-items:center;gap:var(--z-gap);transition:opacity .15s,transform .2s;}
.c-btn .spin,.c-btn .done{position:absolute;inset:0;display:grid;place-items:center;opacity:0;pointer-events:none;transition:opacity .15s,transform .2s;transform:scale(.6);}
.c-btn .spin::before{
  content:"";width:var(--z-icon);height:var(--z-icon);border-radius:50%;
  border:2px solid currentColor;border-right-color:transparent;animation:sp-spin .7s linear infinite;
}
.c-btn.is-loading .lbl,.c-btn.is-done .lbl{opacity:0;transform:scale(.8);}
.c-btn.is-loading .spin,.c-btn.is-done .done{opacity:1;transform:none;}
@keyframes sp-spin{to{transform:rotate(360deg);}}
.specimen[data-show-icon="off"] [data-demo="button"] .ico{display:none;}

/* ---------- Field: label, input, the same Button, a message ---------- */
.c-field{width:100%;max-width:320px;display:grid;gap:7px;}
.c-field-k{font-size:calc(var(--z-font) * var(--b-label) - 1px);font-weight:500;color:var(--s-ink-2);text-transform:var(--b-case);letter-spacing:var(--b-track);}
.c-field-box{
  display:flex;align-items:center;gap:4px;padding:4px;
  background:var(--s-surface);border:var(--b-bw) solid var(--s-line);border-radius:var(--b-radius-box);
  box-shadow:var(--b-box-shadow);
  transition:border-color .2s,box-shadow .2s,border-radius .3s,background-color .3s;
}
.specimen[data-brand="ledger"] .c-field-box{border-color:var(--s-ink);}
.c-field-box:focus-within{border-color:var(--s-solid);box-shadow:0 0 0 3px var(--s-soft);}
.c-field input{
  flex:1;min-width:0;height:calc(var(--z-h) - 8px);padding:0 calc(var(--z-pad) - 6px);
  border:0;background:transparent;color:var(--s-ink);font:400 var(--z-font)/1 var(--b-font);outline:0;
  transition:height .25s,font-size .25s;
}
.c-field input::placeholder{color:var(--s-ink-3);}
.c-field .c-btn{height:calc(var(--z-h) - 8px);padding:0 calc(var(--z-pad) - 4px);}
/* the message slot: helper, error and success share it and crossfade */
/* margin:0 — it is a <p>, and the site's paragraph spacing pushed it far below the input */
.c-field-msg{position:relative;height:1.35em;margin:-1px 0 0 2px;font-size:calc(var(--z-font) - 2px);}
.c-field-msg span{position:absolute;left:0;top:0;white-space:nowrap;opacity:0;transform:translateY(-3px);transition:opacity .2s,transform .2s;}
.c-field-msg .m-help{color:var(--s-ink-3);}
.c-field-msg .m-err{color:var(--s-neg);}
.c-field-msg .m-ok{color:var(--s-pos);}
.specimen[data-helper="on"] .c-field:not(.is-invalid):not(.is-ok) .m-help,
.c-field.is-invalid .m-err,.c-field.is-ok .m-ok{opacity:1;transform:none;}
.c-field.is-invalid .c-field-box{border-color:var(--s-neg);box-shadow:0 0 0 3px color-mix(in srgb,var(--s-neg) 18%,transparent);}
.c-field.is-invalid .c-field-box{animation:sp-nudge .3s ease;}
@keyframes sp-nudge{25%{transform:translateX(-3px);}75%{transform:translateX(3px);}}
.c-field.is-disabled{opacity:.5;}
.c-field.is-disabled .c-field-box{background:var(--s-surface-2);box-shadow:none;}

/* ---------- PromptInput ---------- */
.c-stack{width:100%;max-width:340px;display:flex;flex-direction:column;align-items:stretch;gap:8px;}
/* the message just sent, above the input: what was typed in the bubble, and
   what went with it (files, sources) as tags underneath, the way chat products
   show attachments */
.c-msg{
  align-self:flex-end;max-width:88%;display:flex;flex-direction:column;align-items:flex-end;gap:5px;min-width:0;
  opacity:0;transform:translateY(6px) scale(.98);transform-origin:bottom right;pointer-events:none;
  transition:opacity .25s,transform .25s;
}
.c-msg[hidden]{display:none;}
.c-msg.is-on{opacity:1;transform:none;}
.c-bubble{
  /* spacing is a transparent border, not padding: the two-line cut happens at
     the padding edge, so padding would show a sliver of the third line */
  max-width:100%;padding:0;border:solid transparent;border-width:8px 12px;border-radius:min(var(--b-radius-box),16px);
  background:var(--s-soft);color:var(--s-ink);font-size:calc(var(--z-font) - 1px);line-height:1.35;
  /* any text, however long: it wraps anywhere and stops at two lines */
  overflow-wrap:anywhere;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;
}
/* one line of tags; what does not fit is summed up in the last one */
.c-meta{display:flex;justify-content:flex-end;gap:4px;max-width:100%;overflow:hidden;}
.c-meta:empty{display:none;}
.c-tag{
  flex:0 1 auto;min-width:0;display:inline-flex;align-items:center;gap:4px;max-width:132px;padding:3px 7px;
  border-radius:min(var(--b-radius),6px);border:var(--b-bw) solid var(--s-line);background:var(--s-surface);
  font:500 calc(var(--z-font) - 3px)/1.2 var(--b-font);color:var(--s-ink-2);white-space:nowrap;
}
.c-tag span{overflow:hidden;text-overflow:ellipsis;min-width:0;}
.c-tag.is-more{flex:none;}
.c-tag svg{width:11px;height:11px;flex:none;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.c-prompt-wrap.has-bubble .c-suggest-wrap{grid-template-rows:0fr;opacity:0;}
/* suggestions: collapse away once there is text */
.c-suggest-wrap{display:grid;grid-template-rows:1fr;transition:grid-template-rows .28s ease,opacity .2s;}
.c-suggest-wrap > div{min-height:0;overflow:hidden;}
.c-suggest{display:flex;flex-wrap:wrap;gap:6px;padding:2px;}
.specimen[data-suggest="off"] .c-suggest-wrap,.c-prompt-wrap.has-text .c-suggest-wrap,.c-prompt-wrap.is-busy .c-suggest-wrap{grid-template-rows:0fr;opacity:0;}
.c-sugg{
  appearance:none;cursor:pointer;display:inline-flex;align-items:center;gap:6px;
  padding:6px 10px;border-radius:var(--b-radius);border:var(--b-bw) solid var(--s-line);
  background:var(--s-surface);color:var(--s-ink-2);font:500 calc(var(--z-font) * var(--b-label) - 2px)/1.1 var(--b-font);
  letter-spacing:var(--b-track);text-transform:var(--b-case);
  transition:background-color .2s,color .2s,border-color .2s,transform .12s,border-radius .3s;
}
.c-sugg svg{width:12px;height:12px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
@media (hover:hover){.c-sugg:hover{border-color:var(--s-solid);color:var(--s-brand-text);}}
.c-sugg:active{transform:scale(.96);}
.c-sugg:focus-visible{outline:2px solid var(--s-solid);outline-offset:2px;}

.c-prompt{
  display:grid;grid-template-columns:minmax(0,1fr);gap:6px;padding:8px;min-width:0;
  background:var(--s-surface);border:var(--b-bw) solid var(--s-line);border-radius:min(var(--b-radius-panel),26px);
  box-shadow:var(--b-box-shadow);
  transition:border-color .2s,box-shadow .2s,border-radius .3s,background-color .3s;
}
.specimen[data-brand="ledger"] .c-prompt{border-color:var(--s-ink);}
.c-prompt:focus-within{border-color:var(--s-solid);}
/* attachments: the row opens and closes; the panel is anchored at the bottom,
   so only the top of the input moves */
.c-files-wrap{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s cubic-bezier(.3,.7,.4,1);}
.c-files-wrap > div{min-height:0;overflow:hidden;}
.c-prompt.has-files .c-files-wrap{grid-template-rows:1fr;}
.c-files{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding:2px 2px 4px;}
.c-files::-webkit-scrollbar{display:none;}
.c-chip{
  position:relative;flex:none;display:inline-flex;align-items:center;gap:6px;overflow:hidden;
  padding:5px 5px 5px 8px;border-radius:min(var(--b-radius),10px);background:var(--s-surface-2);
  font:500 calc(var(--z-font) - 2px)/1.1 var(--b-font);color:var(--s-ink-2);
  animation:sp-chip-in .28s cubic-bezier(.3,.7,.4,1);
}
.c-chip.is-leaving{animation:sp-chip-out .22s ease forwards;}
@keyframes sp-chip-in{from{opacity:0;transform:scale(.85);}}
@keyframes sp-chip-out{to{opacity:0;transform:scale(.85);}}
.c-chip svg{width:13px;height:13px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none;}
.c-chip .x{appearance:none;border:0;background:none;color:inherit;cursor:pointer;padding:2px;border-radius:4px;display:grid;}
@media (hover:hover){.c-chip .x:hover{background:var(--s-line);color:var(--s-ink);}}
.c-chip .bar{position:absolute;left:0;bottom:0;height:2px;width:100%;background:var(--s-solid);transform-origin:left;
  animation:sp-upload .9s cubic-bezier(.4,0,.2,1) forwards;}
.c-chip.is-done .bar{opacity:0;transition:opacity .3s;}
@keyframes sp-upload{from{transform:scaleX(0);}to{transform:scaleX(1);}}
.c-prompt textarea{
  width:100%;height:calc(var(--z-font) * 1.45 + 8px);resize:none;border:0;outline:0;background:transparent;overflow:hidden;
  padding:4px 6px;color:var(--s-ink);font:400 var(--z-font)/1.45 var(--b-font);
  transition:height .18s ease;
}
.c-prompt textarea::placeholder{color:var(--s-ink-3);}
.c-prompt-row{display:flex;align-items:center;gap:4px;}
/* the row's buttons never squeeze (a squeezed icon button stops being square);
   the status text is what gives way */
.c-prompt-row > .c-btn,.c-prompt-row > .c-src{flex:none;}
.c-prompt .c-btn{height:calc(var(--z-h) - 8px);padding:0 calc(var(--z-pad) - 6px);font-size:calc(var(--z-font) * var(--b-label) - 1px);}
.c-prompt .c-btn.is-icon{width:calc(var(--z-h) - 8px);padding:0;}
.specimen[data-toolbar="minimal"] .c-tool{width:0;padding:0;margin:0;border-width:0;opacity:0;pointer-events:none;overflow:hidden;}
/* the status takes whatever room is left, and none when there is none */
.c-status{flex:1 1 auto;min-width:0;overflow:hidden;text-overflow:ellipsis;text-align:right;font-size:calc(var(--z-font) - 2px);color:var(--s-ink-3);opacity:0;transition:opacity .2s;white-space:nowrap;}
.c-prompt-wrap.is-busy .c-status{opacity:1;}
.c-send .i-stop{display:none;}
.c-prompt-wrap.is-busy .c-send .i-send{display:none;}
.c-prompt-wrap.is-busy .c-send .i-stop{display:block;}
.c-prompt-wrap.is-busy .c-send::after{
  /* a true circle centred on the button, whatever shape the button is */
  content:"";position:absolute;left:50%;top:50%;width:calc(100% + 10px);aspect-ratio:1;margin:0;
  translate:-50% -50%;border-radius:50%;border:2px solid var(--s-solid);
  border-right-color:transparent;border-bottom-color:transparent;animation:sp-spin .9s linear infinite;
}
.specimen[data-brand="ledger"] .c-prompt-wrap.is-busy .c-send::after{border-radius:0;animation:sp-pulse 1s ease-in-out infinite;border-right-color:var(--s-solid);}

/* ---------- properties panel: four rows on every step ---------- */
.sp-props{display:grid;grid-template-columns:88px minmax(0,1fr);row-gap:8px;align-items:center;padding:14px 16px 16px;}
.sp-k{font:500 11px/1 var(--mono);color:var(--ink-3);}
.sp-v{display:flex;align-items:center;gap:8px;min-width:0;height:30px;}
.sp-rule{grid-column:1 / -1;height:1px;border:0;margin:2px 0;background:var(--rule);}
.sp-own{display:none;}
.specimen[data-tab="button"] .sp-own[data-for="button"],
.specimen[data-tab="field"] .sp-own[data-for="field"],
.specimen[data-tab="prompt"] .sp-own[data-for="prompt"]{display:contents;}

.sp-seg{display:inline-flex;padding:2px;border-radius:8px;background:var(--sink);gap:2px;min-width:0;}
.sp-seg button{
  appearance:none;display:inline-flex;align-items:center;gap:6px;border:0;border-radius:6px;background:transparent;cursor:pointer;
  padding:5px 9px;font:500 12px/1.1 var(--body);color:var(--ink-2);white-space:nowrap;
  transition:background-color .15s,color .15s,box-shadow .15s;
}
.sp-seg button[aria-pressed="true"]{background:var(--paper);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.08);}
:root[data-theme="dark"] .sp-seg button[aria-pressed="true"]{background:var(--rule);}
@media (hover:hover){.sp-seg button:hover{color:var(--ink);}}
.sp-seg button:active{transform:scale(.97);}
/* brand options: a swatch in the brand's colour and corner */
.sw{width:10px;height:10px;flex:none;}
.sw.harbor{background:#155dfc;border-radius:3px;}
.sw.bloom{background:linear-gradient(135deg,#7f22fe,#e60076);border-radius:50%;}
.sw.ledger{background:#18181b;border-radius:0;box-shadow:1.5px 1.5px 0 #a1a1aa;}
:root[data-theme="dark"] .sw.ledger{background:#f4f4f5;}

.sp-switch{
  appearance:none;position:relative;width:34px;height:20px;border-radius:999px;padding:0;cursor:pointer;flex:none;
  border:0;background:var(--rule-2);transition:background-color .2s;
}
.sp-switch::after{
  content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;border-radius:50%;
  background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.25);transition:transform .2s cubic-bezier(.3,.7,.4,1);
}
.sp-switch[aria-checked="true"]{background:var(--accent);}
.sp-switch[aria-checked="true"]::after{transform:translateX(14px);}
.sp-seg button:focus-visible,.sp-switch:focus-visible,.sp-tab:focus-visible,.sp-pick-btn:focus-visible,.sp-pop button:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

.sp-pick{position:relative;}
.sp-pick-btn{
  appearance:none;display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 6px 0 8px;cursor:pointer;
  border:1px solid var(--rule);border-radius:8px;background:var(--paper);color:var(--ink);transition:opacity .2s,border-color .15s;
}
@media (hover:hover){.sp-pick-btn:not(:disabled):hover{border-color:var(--rule-2);}}
.sp-pick-btn svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.sp-pick-btn .chev{width:10px;height:10px;color:var(--ink-3);transition:transform .2s;}
.sp-pick-btn[aria-expanded="true"] .chev{transform:rotate(180deg);}
.sp-pick-btn:disabled{opacity:.35;cursor:not-allowed;}
.sp-pop{
  position:absolute;bottom:calc(100% + 8px);left:0;z-index:6;
  display:grid;grid-template-columns:repeat(4,34px);gap:4px;padding:6px;
  background:var(--paper);border:1px solid var(--rule);border-radius:10px;
  box-shadow:0 10px 30px rgba(8,14,26,.16),0 1px 3px rgba(8,14,26,.08);
  transform-origin:bottom left;animation:sp-pop .16s cubic-bezier(.3,.7,.4,1);
}
@keyframes sp-pop{from{opacity:0;transform:translateY(4px) scale(.96);}}
.sp-pop[hidden]{display:none;}
.sp-pop button{
  appearance:none;width:34px;height:34px;display:grid;place-items:center;cursor:pointer;
  border:0;border-radius:7px;background:transparent;color:var(--ink-2);transition:background-color .12s,color .12s;
}
.sp-pop button svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
@media (hover:hover){.sp-pop button:hover{background:var(--sink);color:var(--ink);}}
.sp-pop button[aria-selected="true"]{background:var(--sink);color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent);}

@media (prefers-reduced-motion:reduce){
  .specimen *,.specimen *::before,.specimen *::after{transition:none !important;animation:none !important;}
}

/* ============================================================
   Brand behaviour beyond colour: icon style, loading and done.
   The markup carries every variant; the brand picks which one shows.
     Harbor  outline icons     a ring replaces the label     a check replaces it
     Bloom   two-tone icons    a spinner takes the icon's    the icon becomes a
                               place, the label stays, a     check, the label
                               sheen passes over             stays
     Ledger  thin square-cut   a text spinner replaces the   "OK" replaces it
             icons             label
   ============================================================ */
.specimen[data-brand="harbor"]{--b-icon-w:2;--b-icon-cap:round;--b-icon-join:round;--b-icon-fill:none;--b-icon-fo:0;}
.specimen[data-brand="bloom"]{--b-icon-w:2.2;--b-icon-cap:round;--b-icon-join:round;--b-icon-fill:currentColor;--b-icon-fo:.22;}
.specimen[data-brand="ledger"]{--b-icon-w:1.6;--b-icon-cap:square;--b-icon-join:miter;--b-icon-fill:none;--b-icon-fo:0;}
.sp-stage .c-btn svg,.sp-stage .c-sugg svg,.sp-stage .c-chip svg{
  stroke-width:var(--b-icon-w);stroke-linecap:var(--b-icon-cap);stroke-linejoin:var(--b-icon-join);
  fill:var(--b-icon-fill);fill-opacity:var(--b-icon-fo);
}

/* the other loaders and done marks, hidden until a brand asks for them */
.c-btn .ascii,.c-btn .done-txt{
  position:absolute;inset:0;display:grid;place-items:center;opacity:0;pointer-events:none;
  font:inherit;letter-spacing:0;text-transform:inherit;white-space:pre;transition:opacity .15s;
}
.c-btn .mini{display:none;position:relative;width:var(--z-icon);height:var(--z-icon);flex:none;}
.c-btn .mini-spin{position:absolute;inset:1px;border-radius:50%;border:2px solid currentColor;border-right-color:transparent;animation:sp-spin .7s linear infinite;opacity:0;transition:opacity .15s;}
.c-btn .mini-check{position:absolute;inset:0;opacity:0;transition:opacity .15s;}

/* Ledger: a text spinner, then OK */
.specimen[data-brand="ledger"] .c-btn.is-loading .spin,
.specimen[data-brand="ledger"] .c-btn.is-done .done{opacity:0;}
.specimen[data-brand="ledger"] .c-btn.is-loading .ascii,
.specimen[data-brand="ledger"] .c-btn.is-done .done-txt{opacity:1;}

/* Bloom: the label stays; the icon slot loads, then checks; a sheen passes */
.specimen[data-brand="bloom"] .c-btn:is(.is-loading,.is-done) .lbl{opacity:1;transform:none;}
.specimen[data-brand="bloom"] .c-btn:is(.is-loading,.is-done) :is(.spin,.done){opacity:0;}
.specimen[data-brand="bloom"] .c-btn:is(.is-loading,.is-done) .mini{display:inline-block;}
.specimen[data-brand="bloom"] .c-btn:is(.is-loading,.is-done) .ico{display:none;}
.specimen[data-brand="bloom"] .c-btn.is-loading .mini-spin{opacity:1;}
.specimen[data-brand="bloom"] .c-btn.is-done .mini-check{opacity:1;}
.specimen[data-brand="bloom"] .c-btn.is-loading::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(100deg,transparent 35%,rgba(255,255,255,.38) 50%,transparent 65%);
  background-size:250% 100%;animation:sp-sheen 1.1s linear infinite;
}
@keyframes sp-sheen{from{background-position:130% 0;}to{background-position:-30% 0;}}
/* an empty label leaves an icon-only button, the same height, squared off */
.c-btn[data-demo="button"].is-bare{width:var(--z-h);padding:0;}
.c-btn[data-demo="button"].is-bare .txt{display:none;}

/* the text properties */
.sp-text{
  width:min(100%,220px);height:28px;padding:0 9px;border:1px solid var(--rule);border-radius:8px;
  background:var(--paper);color:var(--ink);font:500 12px/1 var(--body);outline:0;
  transition:border-color .15s,box-shadow .15s;
}
@media (hover:hover){.sp-text:hover{border-color:var(--rule-2);}}
.sp-text:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--sel-soft);}

/* ---------- touch screens: the whole preview is sized for a finger ----------
   iPhone Safari zooms into any text field set below 16px. Raising only the
   fields made them look oversized next to desktop-dense surroundings, so on
   touch the size scale moves up one step (M is 16px, the size fields need),
   and the properties panel gets phone-sized type and targets. Turning zoom off
   in the viewport would also stop pinch zoom on Android, so it is not used. */
@media (hover:none) and (pointer:coarse){
  .specimen[data-size="sm"]{--z-h:36px;--z-font:14px;--z-pad:14px;--z-gap:7px;--z-icon:15px;}
  .specimen[data-size="md"]{--z-h:44px;--z-font:16px;--z-pad:18px;--z-gap:8px;--z-icon:17px;}
  .specimen[data-size="lg"]{--z-h:52px;--z-font:18px;--z-pad:22px;--z-gap:10px;--z-icon:19px;}
  /* S is the one size below 16px: its fields stay at 16 so they never zoom */
  .c-field input,.c-prompt textarea{font-size:max(16px,var(--z-font));}
  .sp-tab{font-size:15px;padding:9px 8px;}
  .sp-hint{font-size:12px;}
  .sp-props{row-gap:10px;grid-template-columns:90px minmax(0,1fr);}
  .sp-k{font-size:12px;}
  .sp-v{height:36px;}
  .sp-seg button{font-size:14px;padding:8px 9px;}
  .sp-text{font-size:16px;height:36px;}
  .sp-switch{width:44px;height:26px;}
  .sp-switch::after{width:22px;height:22px;}
  .sp-switch[aria-checked="true"]::after{transform:translateX(18px);}
  .sp-pick-btn{height:36px;padding:0 8px 0 10px;}
}

/* the selection box is a pointer affordance: never on touch screens */
@media (hover:none),(pointer:coarse){.sp-sel{display:none;}}

/* narrow phones: brand shows as swatches (the names stay for screen readers),
   and a row that still cannot fit scrolls sideways instead of being cut */
.sp-seg{max-width:100%;overflow-x:auto;scrollbar-width:none;}
.sp-seg::-webkit-scrollbar{display:none;}
@media (max-width:419px){
  .sp-seg[data-set="brand"] button{font-size:0;gap:0;padding:8px 13px;}
  .sp-seg[data-set="brand"] .sw{width:14px;height:14px;}
}
@media (max-width:359px){
  .specimen .sp-panel{padding-left:12px;padding-right:12px;}
  .sp-props{grid-template-columns:78px minmax(0,1fr);padding-inline:12px;}
  .sp-k{font-size:11px;}
  .sp-seg button{font-size:13px;padding:8px 8px;}
}

/* ---------- Sources: a Button that opens a Menu ---------- */
.c-src{position:relative;display:inline-flex;}
.c-src .c-btn .chev{width:12px;height:12px;opacity:.6;transition:transform .2s;}
.c-src .c-btn[aria-expanded="true"] .chev{transform:rotate(180deg);}
.c-count{
  min-width:18px;height:18px;padding:0 5px;border-radius:999px;display:inline-grid;place-items:center;
  font:600 11px/1 var(--b-font);letter-spacing:0;background:var(--s-soft);color:var(--s-brand-text);
}
.c-count:empty{display:none;}
.c-menu{
  position:absolute;left:0;bottom:calc(100% + 6px);z-index:5;min-width:188px;padding:4px;
  background:var(--s-surface);border:var(--b-bw) solid var(--s-line);border-radius:min(var(--b-radius-box),14px);
  box-shadow:0 12px 32px -8px rgba(8,14,26,.28),0 1px 3px rgba(8,14,26,.1);
  transform-origin:bottom left;animation:sp-pop .16s cubic-bezier(.3,.7,.4,1);
}
.specimen[data-brand="ledger"] .c-menu{border-color:var(--s-ink);box-shadow:var(--b-box-shadow);}
.c-menu[hidden]{display:none;}
.c-menu button{
  appearance:none;display:flex;align-items:center;gap:9px;width:100%;padding:8px 10px;cursor:pointer;
  border:0;border-radius:min(var(--b-radius),9px);background:transparent;color:var(--s-ink);text-align:left;
  font:500 calc(var(--z-font) * var(--b-label) - 1px)/1.2 var(--b-font);letter-spacing:var(--b-track);text-transform:var(--b-case);
}
@media (hover:hover){.c-menu button:hover{background:var(--s-surface-2);}}
.c-menu button:focus-visible{outline:2px solid var(--s-solid);outline-offset:-2px;}
.c-menu .box{
  width:16px;height:16px;flex:none;display:grid;place-items:center;border-radius:min(var(--b-radius),4px);
  border:var(--b-bw) solid var(--s-line-2);transition:background .15s,border-color .15s;
}
.c-menu .box svg{width:11px;height:11px;opacity:0;stroke:var(--s-on-fill);stroke-width:2.5;fill:none;transition:opacity .15s;}
.c-menu [aria-checked="true"] .box{background:var(--s-fill);border-color:transparent;}
.c-menu [aria-checked="true"] .box svg{opacity:1;}
@media (hover:none) and (pointer:coarse) and (max-width:399px){
  .sp-seg button{font-size:13px;padding:8px 8px;}
}
/* when the prompt's bottom row runs out of room, Sources drops its word first
   (js adds .is-tight after measuring), so Send always stays inside */
.c-prompt.is-tight [data-sources] .lbl > span:first-of-type{display:none;}