/* ══════════════════════════════════════════════════════════════════
   app.css — Happy Light Summit.

   Same warm-ink token set as the rest of the suite, so theme.js's
   [data-theme] switch drives this page the way it drives the arcade,
   Pixel Studio, Sandbox and Journal. Dark is the bare :root; light
   overrides only what actually changes. theme.js stamps an explicit
   data-theme before first paint, so there is no prefers-color-scheme
   block here.

   No style attribute is ever set from script: the CSP is
   style-src 'self' with no 'unsafe-inline'.
   ══════════════════════════════════════════════════════════════════ */
:root{
  --bg:#0b0a0d; --bg-2:#16131a;
  --panel:rgba(29,25,34,.82); --panel-solid:#1d1922;
  --line:rgba(184,175,164,.20); --line-hot:rgba(245,158,11,.45);
  --ink:#f5f1ea; --ink-dim:#b8afa4; --ink-faint:#6b635a;
  --brand:#f59e0b; --brand-2:#a78bfa;
  --ok:#4ee8a5; --warn:#fbbf24; --bad:#f87171;
  --surf:rgba(43,37,51,.72);
  --shadow:4px 4px 0 rgba(0,0,0,.45);
  --logo-glow:1; --logo-glow-color:#f59e0b; --logo-bulb:#d9a441;
  --logo-glass-hi:#fffdf6; --logo-glass-lo:#f8e3b6; --logo-face:#8a6a3b;
  --font:"Inter Variable","Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --r:12px;
}
:root[data-theme="light"]{
  --bg:#faf8f4; --bg-2:#f1ece2;
  --panel:rgba(255,253,247,.92); --panel-solid:#fffdf7;
  --line:rgba(90,74,54,.22); --line-hot:rgba(180,83,9,.42);
  --ink:#241f18; --ink-dim:#5b5145; --ink-faint:#7d7264;
  --brand:#b45309; --brand-2:#6d28d9;
  --ok:#047857; --warn:#8c6510; --bad:#b91c1c;
  --surf:rgba(241,236,226,.80);
  --shadow:4px 4px 0 rgba(90,74,54,.22);
  --logo-glow:0; --logo-bulb:#a86f18;
  --logo-glass-hi:#fffaec; --logo-glass-lo:#f2d79c; --logo-face:#6b4d22;
}

*{box-sizing:border-box}
input[type=checkbox]{accent-color:var(--brand)}
[hidden]{display:none !important}

html{color-scheme:dark;height:100%}
:root[data-theme="light"]{color-scheme:light}

body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--font);font-size:15px;line-height:1.55;
  -webkit-font-smoothing:antialiased;
  height:100dvh;
  display:flex;flex-direction:column;
  overflow:hidden;
}
.sb-bar,.sb-alert{flex:none}

a{color:var(--brand)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,
summary:focus-visible,canvas:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;
}

.skip{position:absolute;left:-9999px;top:0;background:var(--panel-solid);
  color:var(--ink);padding:.6rem .9rem;z-index:80;border-radius:0 0 var(--r) 0}
.skip:focus{left:0}

/* ── brand lockup ──
   inline-flex + column stacks the subtitle under the mark. It must stay
   inline-flex: the lockup is taller than its line box (the viewBox reserves
   headroom for the bulb), so as a plain inline element it escapes and the
   bar clips the bulb. */
.wordmark{font-weight:700;letter-spacing:-.03em;line-height:1;
  display:inline-flex;flex-direction:column;align-items:center;gap:.3rem}
.wordmark.small{font-size:1.2rem}
.wordmark .hl-lockup{height:2em;width:auto;display:inline-block;
  color:var(--ink);flex:none}
.wm-b{color:var(--ink-dim);font-size:max(.62rem,.16em);font-weight:700;
  letter-spacing:.26em;text-indent:.26em;text-transform:uppercase;line-height:1}

/* ── top bar ── */
.sb-bar{display:flex;align-items:center;gap:.9rem;flex-wrap:wrap;
  padding:.55rem .9rem;background:var(--panel);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);z-index:40}
.sb-home{text-decoration:none;flex:none}
.sb-title{font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-faint);font-weight:600}
.sb-bar-actions{margin-left:auto;display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}

.sb-btn{appearance:none;font:inherit;font-size:.82rem;cursor:pointer;
  color:var(--ink);background:var(--surf);border:1px solid var(--line);
  border-radius:999px;padding:.32rem .8rem}
.sb-btn:hover{border-color:var(--line-hot)}
.sb-btn:disabled{opacity:.45;cursor:default}
.sb-btn:disabled:hover{border-color:var(--line)}
.sb-btn-quiet{background:none}
.sb-btn-wide{width:100%;text-align:center}
.sb-btn[aria-pressed="true"]{background:var(--brand);color:#1a1206;font-weight:700;
  border-color:transparent}
:root[data-theme="light"] .sb-btn[aria-pressed="true"]{color:#fff}

.sb-seg{display:inline-flex;border:1px solid var(--line);border-radius:999px;
  overflow:hidden;background:var(--surf)}
.sb-seg button{appearance:none;background:none;border:0;color:var(--ink-dim);
  font:inherit;font-size:.78rem;padding:.3rem .7rem;cursor:pointer;white-space:nowrap}
.sb-seg button.on{background:var(--brand);color:#1a1206;font-weight:700}
:root[data-theme="light"] .sb-seg button.on{color:#fff}

/* ── bar menu ── same <details>/<summary> pattern as the siblings ── */
.hl-menu{position:relative}
.hl-menu-summary{display:flex;align-items:center;gap:.45rem;cursor:pointer;list-style:none;
  padding:.3rem .7rem;border:1px solid var(--line);border-radius:999px;background:var(--surf);
  color:var(--ink-dim);font-size:.78rem;user-select:none}
.hl-menu-summary::-webkit-details-marker{display:none}
.hl-menu-summary:hover{border-color:var(--line-hot);color:var(--ink)}
.hl-menu-bars{width:.85rem;height:.7rem;flex:none;
  border-top:2px solid currentColor;border-bottom:2px solid currentColor;position:relative}
.hl-menu-bars::after{content:"";position:absolute;left:0;right:0;top:calc(50% - 1px);
  border-top:2px solid currentColor}
.hl-menu-panel{position:absolute;right:0;top:calc(100% + .35rem);z-index:60;
  min-width:15rem;display:flex;flex-direction:column;padding:.3rem;
  border:1px solid var(--line);border-radius:.6rem;
  background:var(--panel-solid);box-shadow:var(--shadow)}
.hl-menu-head{margin:.45rem .55rem .2rem;font-size:.62rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--ink-faint)}
.hl-menu-head:first-child{margin-top:.2rem}
.hl-menu-item{appearance:none;background:none;border:0;cursor:pointer;font:inherit;
  font-size:.85rem;color:var(--ink);text-align:left;text-decoration:none;
  padding:.45rem .55rem;border-radius:.4rem}
.hl-menu-item:hover{background:var(--line)}
.hl-menu-item:focus-visible{outline:2px solid var(--brand);outline-offset:-2px}
.hl-menu-seg{margin:.15rem .55rem .3rem;align-self:flex-start}
.hl-menu-check{display:flex;align-items:center;gap:.5rem;font-size:.85rem;
  padding:.35rem .55rem;cursor:pointer;color:var(--ink)}

/* ── alerts ── */
.sb-alert{margin:0;padding:.6rem .9rem;font-size:.84rem;
  border-bottom:1px solid var(--line);background:var(--bg-2)}
.sb-alert.ok{background:color-mix(in srgb,var(--ok) 16%,var(--bg-2));color:var(--ink)}
.sb-alert.warn{background:color-mix(in srgb,var(--warn) 18%,var(--bg-2));color:var(--ink)}
.sb-alert.bad{background:color-mix(in srgb,var(--bad) 20%,var(--bg-2));color:var(--ink)}

/* ══════════════════════════════════════════════════════════════════
   RENDERED MARKDOWN
   ══════════════════════════════════════════════════════════════════ */

.md{overflow-wrap:break-word}
.md > :first-child{margin-top:0}
.md > :last-child{margin-bottom:0}

.md h1,.md h2,.md h3,.md h4,.md h5,.md h6{
  line-height:1.25;margin:1.6em 0 .5em;font-weight:700;letter-spacing:-.01em}
.md h1{font-size:1.7rem}
.md h2{font-size:1.35rem;padding-bottom:.25rem;border-bottom:1px solid var(--line)}
.md h3{font-size:1.12rem}
.md h4{font-size:1rem}
.md h5,.md h6{font-size:.9rem;color:var(--ink-dim);text-transform:uppercase;letter-spacing:.08em}

.md p{margin:0 0 .9em}
.md strong{font-weight:700;color:var(--ink)}
.md em{font-style:italic}
.md del{color:var(--ink-faint)}

.md hr{border:0;border-top:1px solid var(--line);margin:1.8em 0}

.md ul,.md ol{margin:0 0 .9em;padding-left:1.4em}
.md li{margin:.2em 0}
.md .md-loose > li{margin:.6em 0}
/* Only the task items drop their marker. Putting list-style:none on the
   whole <ul> stripped the bullets from plain siblings in a mixed list —
   visible on the welcome note, where "Bullet lists, nested:" lost its
   bullet because two items further down were checkboxes. */
.md li.md-task{list-style:none;display:flex;gap:.5em;align-items:flex-start}
.md .md-tasklist{padding-left:1.15em}
.md li.md-task > input{margin-top:.35em;flex:none}
/* Everything after the checkbox lives in one block wrapper, so a nested
   list stacks BELOW the row's text instead of becoming a third flex item
   beside it. min-width:0 lets a long word or URL wrap rather than push
   the row wide — a flex item's default min-width:auto refuses to shrink. */
.md li.md-task > .md-task-body{flex:1 1 auto;min-width:0}
.md li.md-task > .md-task-body > :last-child{margin-bottom:0}

.md blockquote{margin:0 0 .9em;padding:.1em 0 .1em 1em;
  border-left:3px solid var(--brand);color:var(--ink-dim)}
.md blockquote > :last-child{margin-bottom:0}

.md code{font-family:var(--mono);font-size:.88em;
  background:var(--surf);border:1px solid var(--line);
  border-radius:.3em;padding:.1em .35em}
.md pre{margin:0 0 1em;padding:.8rem 1rem;overflow-x:auto;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r)}
.md pre code{background:none;border:0;padding:0;font-size:.85em;line-height:1.6}
/* The language label, from the fence's info string. */
.md pre[data-lang]{position:relative;padding-top:1.5rem}
.md pre[data-lang]::before{content:attr(data-lang);position:absolute;top:.3rem;right:.6rem;
  font-size:.62rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint)}

/* A wide table scrolls inside its own box — the page never does. */
.md-table-wrap{overflow-x:auto;margin:0 0 1em;
  border:1px solid var(--line);border-radius:var(--r)}
.md table{border-collapse:collapse;width:100%;font-size:.9rem}
.md th,.md td{padding:.45rem .7rem;border-bottom:1px solid var(--line);text-align:left}
.md th{background:var(--surf);font-weight:700;white-space:nowrap}
/* Column alignment from the table's delimiter row. Classes rather than
   inline styles, so the CSP needs no 'unsafe-inline' for style-src. */
.md .md-al-left{text-align:left}
.md .md-al-center{text-align:center}
.md .md-al-right{text-align:right}
.md tbody tr:last-child td{border-bottom:0}

/* ── embedded media ── */
.md-img,.md-video{max-width:100%;height:auto;display:block;
  border-radius:var(--r);border:1px solid var(--line);margin:.4em 0}
.md-audio{margin:.6em 0;display:grid;gap:.25rem}
.md-audio audio{width:100%;max-width:100%}
.md-audio figcaption{font-size:.75rem;color:var(--ink-faint)}

.md-media-loading{display:inline-block;font-size:.8rem;color:var(--ink-faint);
  background:var(--surf);border:1px dashed var(--line);
  border-radius:.4em;padding:.2em .5em}

/* A reference whose blob is gone — said plainly rather than shown as a
   broken image icon. */
.md-missing{display:inline-block;font-size:.8rem;color:var(--warn);
  background:color-mix(in srgb,var(--warn) 12%,transparent);
  border:1px dashed var(--warn);border-radius:.4em;padding:.2em .5em}

/* A destination the sanitiser refused. Shown, not silently dropped. */
.md-blocked{color:var(--ink-dim);text-decoration:line-through wavy var(--bad)}
.md-blocked-tag{margin-left:.35em;font-size:.68rem;font-weight:700;
  letter-spacing:.06em;text-transform:uppercase;text-decoration:none;
  color:var(--bad);border:1px solid var(--bad);border-radius:.3em;padding:0 .3em;
  cursor:help}

/* A [[note link]]. Solid underline for a note that exists; dashed and
   muted for one that does not yet (clicking offers to create it); a
   dotted underline for a title several notes share. Never colour alone:
   the underline style carries the state too. */
.md-notelink{color:var(--brand);text-decoration:underline;text-decoration-thickness:1px;
  text-underline-offset:.18em;cursor:pointer;border-radius:3px}
.md-notelink:hover{text-decoration-thickness:2px}
.md-notelink:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.md-notelink.unresolved{color:var(--ink-dim);text-decoration-style:dashed;
  text-decoration-color:var(--ink-faint)}
.md-notelink.ambiguous{text-decoration-style:dotted}
.md-notelink.ambiguous::after{content:"²";font-size:.7em;vertical-align:super;
  margin-left:.05em;color:var(--ink-faint)}


/* ══════════════════════════════════════════════════════════════════
   SUMMIT
   ══════════════════════════════════════════════════════════════════ */

/* Participant colours. Classes, not style attributes: the CSP has no
   'unsafe-inline' for styles, and a colour name from storage can only
   ever select one of these eight. */
.c-amber{--c:#f59e0b}.c-violet{--c:#a78bfa}.c-teal{--c:#2dd4bf}.c-rose{--c:#fb7185}
.c-lime{--c:#a3e635}.c-sky{--c:#38bdf8}.c-coral{--c:#fb923c}.c-slate{--c:#94a3b8}
:root[data-theme="light"] .c-amber{--c:#b45309}
:root[data-theme="light"] .c-violet{--c:#6d28d9}
:root[data-theme="light"] .c-teal{--c:#0f766e}
:root[data-theme="light"] .c-rose{--c:#be123c}
:root[data-theme="light"] .c-lime{--c:#4d7c0f}
:root[data-theme="light"] .c-sky{--c:#0369a1}
:root[data-theme="light"] .c-coral{--c:#c2410c}
:root[data-theme="light"] .c-slate{--c:#475569}

.su-main{flex:1;min-height:0;display:grid;
  grid-template-columns:clamp(13rem,20vw,17rem) minmax(0,1fr)}

/* ── rooms ── */
.su-side{display:flex;flex-direction:column;gap:.5rem;min-height:0;min-width:0;
  padding:.7rem;border-right:1px solid var(--line);background:var(--bg-2);overflow-y:auto}
.su-side h2{margin:.2rem 0 0;font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-dim)}
.su-rooms{list-style:none;margin:0;padding:0;display:grid;gap:.2rem}
.su-room-item{appearance:none;width:100%;text-align:left;font:inherit;font-size:.86rem;cursor:pointer;
  color:var(--ink);background:none;border:1px solid transparent;border-radius:.5rem;padding:.4rem .55rem;
  display:grid;gap:.05rem;min-width:0}
.su-room-item:hover{background:var(--surf)}
.su-room-item[aria-current="true"]{background:var(--surf);border-color:var(--line-hot)}
.su-room-item span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.su-room-item small{color:var(--ink-faint);font-size:.7rem}
.su-none{margin:0;font-size:.78rem;color:var(--ink-faint)}

/* ── room ── */
.su-room{display:flex;flex-direction:column;min-height:0;min-width:0}
.su-room-head{flex:none;display:flex;flex-wrap:wrap;align-items:center;gap:.5rem .8rem;
  padding:.55rem .9rem;border-bottom:1px solid var(--line)}
.su-room-name{flex:1 1 10rem;min-width:0;font:inherit;font-weight:700;font-size:1rem;color:var(--ink);
  background:none;border:1px solid transparent;border-radius:.4rem;padding:.2rem .4rem}
.su-room-name:hover,.su-room-name:focus{border-color:var(--line)}
.su-ctl{display:flex;align-items:center;gap:.4rem;font-size:.76rem;color:var(--ink-dim)}
.su-ctl select,.su-ctl input{font:inherit;font-size:.8rem;color:var(--ink);background:var(--panel-solid);
  border:1px solid var(--line);border-radius:.4rem;padding:.25rem .4rem}
.su-ctl input[type=number]{width:3.4rem}
.su-members{flex:1 1 100%;display:flex;flex-wrap:wrap;gap:.35rem;align-items:center}
.su-chip{appearance:none;font:inherit;font-size:.78rem;cursor:pointer;color:var(--ink);
  display:inline-flex;align-items:center;gap:.35rem;max-width:100%;
  background:var(--surf);border:1px solid var(--line);border-radius:999px;padding:.2rem .6rem .2rem .3rem}
.su-chip[aria-pressed="false"]{opacity:.5;background:none;border-style:dashed}
.su-chip:hover{border-color:var(--line-hot)}
.su-chip span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.su-dot{flex:none;width:1.25rem;height:1.25rem;border-radius:50%;background:var(--c,var(--brand));
  color:#14121f;font-size:.66rem;font-weight:800;display:inline-grid;place-items:center;text-transform:uppercase}
:root[data-theme="light"] .su-dot{color:#fff}

.su-msgs{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;
  padding:1rem .9rem;display:flex;flex-direction:column;gap:.9rem}
.su-msg{display:grid;grid-template-columns:auto minmax(0,1fr);gap:.1rem .6rem;
  width:100%;max-width:52rem;margin:0 auto}
.su-msg > .su-dot{grid-row:1 / span 3;width:1.8rem;height:1.8rem;font-size:.8rem;margin-top:.1rem}
.su-msg-head{display:flex;align-items:baseline;gap:.5rem;flex-wrap:wrap;min-width:0}
.su-msg-name{font-weight:700;font-size:.86rem;color:var(--c,var(--ink))}
.su-msg-meta{font-size:.68rem;color:var(--ink-faint);font-family:var(--mono);overflow-wrap:anywhere}
.su-msg-body{min-width:0;font-size:.95rem}
.su-msg.is-user .su-msg-body{background:var(--surf);border:1px solid var(--line);
  border-radius:var(--r);padding:.5rem .75rem;white-space:pre-wrap;overflow-wrap:anywhere}
.su-msg.is-live .su-msg-body::after{content:"";display:inline-block;width:.5em;height:1em;
  margin-left:.15em;vertical-align:text-bottom;background:var(--c,var(--brand));animation:su-blink 1s steps(2) infinite}
@keyframes su-blink{50%{opacity:0}}
.su-msg-acts{display:flex;flex-wrap:wrap;gap:.25rem;margin-top:.15rem}
.su-act{appearance:none;font:inherit;font-size:.7rem;cursor:pointer;color:var(--ink-faint);
  background:none;border:1px solid transparent;border-radius:.35rem;padding:.1rem .4rem}
.su-act:hover{color:var(--ink);border-color:var(--line)}
.su-note{margin:.3rem 0 0;font-size:.76rem;color:var(--warn)}
.su-err{margin:.3rem 0 0;padding:.5rem .7rem;font-size:.82rem;border-radius:.5rem;
  border:1px solid var(--bad);background:color-mix(in srgb,var(--bad) 12%,transparent)}
.su-err strong{display:block;color:var(--bad)}
.su-err span{overflow-wrap:anywhere}

/* code block with its copy button */
.md-code{position:relative}
.md-copy{position:absolute;top:.35rem;left:.5rem;z-index:1;appearance:none;font:inherit;font-size:.66rem;
  cursor:pointer;color:var(--ink-dim);background:var(--panel-solid);border:1px solid var(--line);
  border-radius:.35rem;padding:.1rem .45rem;opacity:.75}
.md-copy:hover,.md-copy:focus-visible{opacity:1;color:var(--ink)}
.md .md-code pre{padding-top:1.9rem}

/* ── empty states ── */
.su-empty{margin:auto;max-width:30rem;text-align:center;display:grid;gap:.7rem;justify-items:center;padding:1rem}
.su-empty h2{margin:0;font-size:1.25rem;letter-spacing:-.01em}
.su-empty p{margin:0;color:var(--ink-dim);font-size:.9rem}
.su-privacy{font-size:.76rem !important;color:var(--ink-faint) !important}

/* ── composer ── */
.su-composer{flex:none;border-top:1px solid var(--line);padding:.6rem .9rem .5rem;background:var(--bg-2)}
.su-composer-row{display:flex;gap:.5rem;align-items:flex-end;max-width:52rem;margin:0 auto}
.su-input{flex:1;min-width:0;font:inherit;font-size:.95rem;line-height:1.45;color:var(--ink);resize:none;
  background:var(--panel-solid);border:1px solid var(--line);border-radius:var(--r);
  padding:.55rem .75rem;max-height:40vh;min-height:2.6rem}
.su-input:focus{outline:2px solid var(--brand);outline-offset:1px}
.su-send{background:var(--brand);color:#1a1206;font-weight:700;border-color:transparent;padding:.5rem 1rem}
:root[data-theme="light"] .su-send{color:#fff}
.su-stop{border-color:var(--bad);color:var(--bad);padding:.5rem 1rem}
.su-hint{max-width:52rem;margin:.3rem auto 0;font-size:.68rem;color:var(--ink-faint)}

/* ── dialogs ── top-centre, like the rest of the suite ── */
dialog.su-dlg{margin:4vh auto auto;width:min(44rem,calc(100vw - 1.5rem));max-height:90dvh;
  padding:0;color:var(--ink);background:var(--panel-solid);border:1px solid var(--line);
  border-radius:var(--r);box-shadow:var(--shadow);overflow:hidden}
dialog.su-dlg[open]{display:flex;flex-direction:column}
dialog.su-dlg::backdrop{background:rgba(0,0,0,.55)}
.su-dlg-head{flex:none;display:flex;align-items:center;gap:.6rem;padding:.7rem .9rem;border-bottom:1px solid var(--line)}
.su-dlg-head h2{margin:0;font-size:1rem;flex:1}
.su-dlg-body{flex:1;min-height:0;overflow-y:auto;padding:.9rem;display:grid;gap:.8rem}
.su-dlg-foot{flex:none;display:flex;flex-wrap:wrap;gap:.5rem;justify-content:flex-end;
  padding:.6rem .9rem;border-top:1px solid var(--line)}
.su-dlg-foot .su-grow{margin-right:auto}

.su-people{list-style:none;margin:0;padding:0;display:grid;gap:.35rem}
.su-person{display:flex;align-items:center;gap:.55rem;padding:.4rem .55rem;
  border:1px solid var(--line);border-radius:.5rem;min-width:0}
.su-person-main{flex:1;min-width:0;display:grid}
.su-person-main b{font-size:.88rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.su-person-main small{font-size:.7rem;color:var(--ink-faint);font-family:var(--mono);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.su-form{display:grid;gap:.65rem}
.su-f{display:grid;gap:.2rem;font-size:.76rem;color:var(--ink-dim);min-width:0}
.su-f input,.su-f select,.su-f textarea{font:inherit;font-size:.88rem;color:var(--ink);min-width:0;width:100%;
  background:var(--bg-2);border:1px solid var(--line);border-radius:.45rem;padding:.4rem .55rem}
.su-f textarea{resize:vertical;min-height:4.5rem;font-family:inherit}
.su-f small{color:var(--ink-faint);font-size:.7rem}
.su-2{display:grid;grid-template-columns:1fr 1fr;gap:.65rem}
.su-check{display:flex;align-items:flex-start;gap:.5rem;font-size:.8rem;color:var(--ink-dim)}
.su-swatches{display:flex;flex-wrap:wrap;gap:.35rem}
.su-swatch{appearance:none;width:1.6rem;height:1.6rem;border-radius:50%;cursor:pointer;
  background:var(--c);border:2px solid transparent}
.su-swatch[aria-pressed="true"]{border-color:var(--ink);box-shadow:0 0 0 2px var(--panel-solid) inset}
.su-test{margin:0;font-size:.8rem;padding:.45rem .6rem;border-radius:.45rem;border:1px solid var(--line);overflow-wrap:anywhere}
.su-test.ok{border-color:var(--ok);color:var(--ink)}
.su-test.bad{border-color:var(--bad)}
.su-help h3{margin:1rem 0 .3rem;font-size:.9rem}
.su-help h3:first-child{margin-top:0}
.su-help p,.su-help li{font-size:.86rem;color:var(--ink-dim);margin:.2rem 0}
.su-help pre{margin:.4rem 0;padding:.6rem .75rem;font-family:var(--mono);font-size:.76rem;line-height:1.5;
  background:var(--bg-2);border:1px solid var(--line);border-radius:.5rem;overflow-x:auto;color:var(--ink)}
.su-help code{font-family:var(--mono);font-size:.85em}

.su-rooms-btn{display:none}

@media (max-width:760px){
  .su-main{grid-template-columns:minmax(0,1fr)}
  .su-side{display:none;position:absolute;inset:0 auto 0 0;width:min(18rem,85vw);z-index:30;
    box-shadow:var(--shadow)}
  body.rooms-open .su-side{display:flex}
  .su-main{position:relative}
  .su-rooms-btn{display:inline-block}
  .sb-title{display:none}
  .su-2{grid-template-columns:1fr}
  .su-msgs{padding:.8rem .6rem}
  .su-room-head,.su-composer{padding-left:.6rem;padding-right:.6rem}
  .su-hint{display:none}
}

@media (prefers-reduced-motion:reduce){
  .su-msg.is-live .su-msg-body::after{animation:none}
  *{scroll-behavior:auto !important}
}
.sb-row>.su-f{flex:1}