/* UAP Record — community rail.
   Served at /api/community/rail.css and injected into every page by the front-door Worker.
   Every rule is scoped under #uap-rail. The rail reads the page's --aa-* tokens with hard
   fallbacks (the dark instrument theme in assets/uap.css) and never redefines them. */

/* ---------- tokens, resets ------------------------------------------------------------- */

#uap-rail {
  --r-ground: var(--aa-ground, #0b0e14);
  --r-surface: var(--aa-surface, #121620);
  --r-ink: var(--aa-ink, #e8e5dd);
  --r-ink-2: var(--aa-ink-2, #c9c5bb);
  --r-muted: var(--aa-muted, #9d988d);
  --r-faint: var(--aa-faint, #6f6a61);
  --r-rule: var(--aa-rule, #232937);
  --r-rule-strong: var(--aa-rule-strong, #333b4d);
  --r-accent: var(--aa-accent, #a99df0);
  --r-accent-2: var(--aa-accent-2, #c9c1f7);
  --r-accent-tint: var(--aa-accent-tint, rgba(169, 157, 240, .14));
  --r-gold: var(--aa-gold, #d6b665);
  --r-gold-tint: var(--aa-gold-tint, rgba(214, 182, 101, .14));
  --r-ok: var(--aa-ok, #5ac48c);
  --r-warn: var(--aa-warn, #d9a441);
  --r-warn-tint: var(--aa-warn-tint, rgba(217, 164, 65, .14));
  --r-bad: var(--aa-bad, #e26a7c);
  --r-bad-tint: var(--aa-bad-tint, rgba(226, 106, 124, .14));
  --r-info: var(--aa-info, #6fb6ff);
  --r-serif: var(--aa-serif, Georgia, "Times New Roman", serif);
  --r-sans: var(--aa-sans, -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif);
  --r-mono: var(--aa-mono, ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace);

  /* glass — the panel sits over the page, never on a flat fill */
  --r-glass: rgba(11, 14, 20, .8);
  --r-glass-solid: rgba(13, 17, 24, .97);
  --r-raise-1: rgba(255, 255, 255, .035);
  --r-raise-2: rgba(255, 255, 255, .065);
  --r-raise-3: rgba(255, 255, 255, .1);
  --r-scrim: rgba(4, 6, 10, .5);
  --r-shadow: 0 24px 64px rgba(0, 0, 0, .45);
  --r-shadow-sm: 0 12px 32px rgba(0, 0, 0, .35);
  --r-on-accent: #0b0e14;
  --r-accent-line: rgba(169, 157, 240, .4);
  --r-gold-line: rgba(214, 182, 101, .35);
  --r-warn-line: rgba(217, 164, 65, .4);
  --r-bad-line: rgba(226, 106, 124, .4);
  --r-ok-line: rgba(90, 196, 140, .4);
  --r-shimmer: rgba(255, 255, 255, .06);

  position: fixed;
  inset: 0;
  z-index: 2147483000;
  pointer-events: none;
  font: 400 13px/1.5 var(--r-sans);
  color: var(--r-ink);
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  text-align: left;
}
/* Light fallback. The site ships dark-only tokens (uap.css overrides the AA light set in aa-tokens.css with no
   [data-theme="light"] block), so a light page still hands us light ink; reading it through the tokens would
   paint pale text on a pale panel. The palette below is the AA light design system verbatim (aa-tokens.css,
   all pairs AA on their ground), which is what the page will resolve to once it grows a real light theme. */
#uap-rail[data-theme="light"] {
  --r-ground: #faf8f3; --r-surface: #ffffff;
  --r-ink: #1e1b16; --r-ink-2: #45403a; --r-muted: #5f574c; --r-faint: #7a7163;
  --r-rule: #e3ddcf; --r-rule-strong: #d4ccba;
  --r-accent: #4a3aa8; --r-accent-2: #3a2d8c; --r-accent-tint: #ece9f6;
  --r-gold: #7a5c0d; --r-gold-tint: #f7edd5;
  --r-ok: #1a7a43; --r-warn: #7a5a06; --r-warn-tint: #f7edd5; --r-bad: #9e2338; --r-bad-tint: #f9e3e6; --r-info: #1d4fa1;
  --r-glass: rgba(250, 249, 246, .84);
  --r-glass-solid: rgba(255, 255, 255, .98);
  --r-raise-1: rgba(20, 30, 30, .04);
  --r-raise-2: rgba(20, 30, 30, .07);
  --r-raise-3: rgba(20, 30, 30, .11);
  --r-scrim: rgba(20, 30, 30, .35);
  --r-shadow: 0 24px 64px rgba(20, 30, 30, .18);
  --r-shadow-sm: 0 12px 32px rgba(20, 30, 30, .14);
  --r-on-accent: #ffffff;
  --r-accent-line: rgba(74, 58, 168, .35);
  --r-gold-line: rgba(122, 92, 13, .35);
  --r-warn-line: rgba(122, 90, 6, .4); --r-bad-line: rgba(158, 35, 56, .4); --r-ok-line: rgba(26, 122, 67, .4);
  --r-shimmer: rgba(20, 30, 30, .05);
}
@supports (color: color-mix(in srgb, red 50%, transparent)) {
  #uap-rail {
    --r-accent-line: color-mix(in srgb, var(--r-accent) 40%, transparent);
    --r-gold-line: color-mix(in srgb, var(--r-gold) 38%, transparent);
    --r-warn-line: color-mix(in srgb, var(--r-warn) 40%, transparent);
    --r-bad-line: color-mix(in srgb, var(--r-bad) 40%, transparent);
    --r-ok-line: color-mix(in srgb, var(--r-ok) 40%, transparent);
  }
}
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  #uap-rail { --r-glass: var(--r-glass-solid); }
}

#uap-rail, #uap-rail *, #uap-rail *::before, #uap-rail *::after { box-sizing: border-box; }
#uap-rail > * { pointer-events: auto; }
#uap-rail button, #uap-rail input, #uap-rail textarea, #uap-rail select {
  font: inherit; color: inherit; margin: 0; letter-spacing: inherit; line-height: inherit;
}
#uap-rail button {
  background: none; border: 0; padding: 0; border-radius: 0; box-shadow: none; cursor: pointer;
  text-align: inherit; text-transform: none; -webkit-appearance: none; appearance: none;
  transition: color .18s ease-out, background-color .18s ease-out, border-color .18s ease-out;
}
#uap-rail button:disabled { cursor: default; opacity: .45; }
#uap-rail p, #uap-rail h2, #uap-rail h3, #uap-rail ul, #uap-rail ol, #uap-rail li, #uap-rail blockquote, #uap-rail figure {
  margin: 0; padding: 0; font-weight: inherit; font-size: inherit; line-height: inherit; font-family: inherit;
  letter-spacing: inherit; color: inherit; background: none; border: 0;
}
#uap-rail ul, #uap-rail ol { list-style: none; }
#uap-rail a { color: var(--r-accent-2); text-decoration: none; }
#uap-rail a:hover { text-decoration: underline; text-underline-offset: .16em; }
#uap-rail svg { display: block; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
#uap-rail svg.r-fill { fill: currentColor; stroke: none; }
#uap-rail code { font-family: var(--r-mono); font-size: .9em; background: var(--r-raise-2); padding: .1em .4em; border-radius: 4px; color: var(--r-ink); }
#uap-rail :focus { outline: none; }
#uap-rail :focus-visible { outline: 2px solid var(--r-accent); outline-offset: 2px; border-radius: 6px; }
#uap-rail [hidden] { display: none !important; }
#uap-rail .r-vh { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- collapsed handle -------------------------------------------------------------- */

#uap-rail .r-handle {
  position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  width: 38px; padding: 14px 0 16px;
  background: var(--r-glass);
  -webkit-backdrop-filter: blur(18px) saturate(1.2); backdrop-filter: blur(18px) saturate(1.2);
  border: 1px solid var(--r-rule); border-right: 0; border-radius: 10px 0 0 10px;
  box-shadow: var(--r-shadow-sm);
  color: var(--r-ink-2);
  transition: transform .2s ease-out, opacity .2s ease-out, color .18s ease-out, border-color .18s ease-out;
}
#uap-rail .r-handle:hover { color: var(--r-ink); border-color: var(--r-rule-strong); }
#uap-rail .r-handle-glyph { width: 18px; height: 18px; color: var(--r-accent); }
#uap-rail .r-handle-text {
  writing-mode: vertical-rl; transform: rotate(180deg);
  font: 500 11px/1 var(--r-mono); letter-spacing: .1em; text-transform: uppercase; white-space: nowrap;
}
#uap-rail .r-handle-counts {
  writing-mode: vertical-rl; transform: rotate(180deg);
  font: 400 10px/1 var(--r-mono); letter-spacing: .08em; text-transform: uppercase; white-space: nowrap;
  color: var(--r-ink-3);
  /* the element is rotated, so its physical bottom is the visual top: a 14px hairline sits above the counts */
  padding-bottom: 22px;
  background: linear-gradient(var(--r-rule-strong), var(--r-rule-strong)) no-repeat center bottom / 1px 12px;
}
@media (max-height: 620px) { #uap-rail .r-handle-counts { display: none; } }
#uap-rail .r-handle-badge {
  min-width: 18px; height: 18px; padding: 0 5px; border-radius: 9px;
  background: var(--r-accent); color: var(--r-on-accent);
  font: 600 10.5px/18px var(--r-mono); text-align: center; letter-spacing: 0;
}
#uap-rail[data-state="open"] .r-handle { transform: translate(120%, -50%); opacity: 0; pointer-events: none; }

/* ---------- panel --------------------------------------------------------------------------- */

#uap-rail .r-scrim {
  position: absolute; inset: 0; background: var(--r-scrim);
  opacity: 0; visibility: hidden; transition: opacity .2s ease-out, visibility 0s linear .2s;
}
#uap-rail .r-panel {
  position: absolute; top: 0; right: 0; bottom: 0; width: 400px; max-width: 100%;
  display: flex; flex-direction: column;
  background: var(--r-glass);
  -webkit-backdrop-filter: blur(18px) saturate(1.2); backdrop-filter: blur(18px) saturate(1.2);
  border-left: 1px solid var(--r-rule);
  box-shadow: var(--r-shadow);
  transform: translateX(calc(100% + 40px)); visibility: hidden;
  transition: transform .22s ease-out, visibility 0s linear .22s;
}
#uap-rail[data-state="open"] .r-panel { transform: none; visibility: visible; transition: transform .22s ease-out, visibility 0s; }
#uap-rail[data-mode="panel"] .r-scrim { display: none; }

/* ---------- header, tabs ---------------------------------------------------------------------- */

#uap-rail .r-head { flex: none; padding: 14px 20px 0; }
#uap-rail .r-head-row { display: flex; align-items: center; gap: 12px; min-height: 30px; }
#uap-rail .r-stamp {
  font: 500 10.5px/1 var(--r-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--r-muted);
  display: inline-flex; align-items: center; gap: 8px; min-width: 0;
}
#uap-rail .r-stamp i { width: 3px; height: 3px; border-radius: 50%; background: var(--r-faint); display: inline-block; }
#uap-rail .r-head-row .r-stamp { flex: 1; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; line-height: 30px; }
#uap-rail .r-head-row .r-stamp i { margin: 0 8px; vertical-align: middle; position: relative; top: -1px; }
#uap-rail .r-iconbtn {
  width: 30px; height: 30px; flex: none; display: inline-grid; place-items: center;
  border-radius: 8px; color: var(--r-muted);
}
#uap-rail .r-iconbtn svg { width: 16px; height: 16px; }
#uap-rail .r-iconbtn:hover { color: var(--r-ink); background: var(--r-raise-2); }
#uap-rail .r-title {
  font: 500 20px/1.25 var(--r-serif); color: var(--r-ink); letter-spacing: -.012em;
  margin: 6px 0 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
#uap-rail .r-tabs {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; padding: 3px;
  border-radius: 10px; background: var(--r-raise-1); border: 1px solid var(--r-rule);
}
#uap-rail .r-tab {
  height: 30px; border-radius: 7px; font-size: 12.5px; font-weight: 500; color: var(--r-muted);
  display: inline-flex; align-items: center; justify-content: center; gap: 7px; letter-spacing: .005em;
}
#uap-rail .r-tab:hover { color: var(--r-ink); }
#uap-rail .r-tab[aria-pressed="true"] {
  background: var(--r-raise-2); color: var(--r-ink); box-shadow: inset 0 0 0 1px var(--r-rule-strong);
}
#uap-rail .r-tab-count { font: 500 10.5px/1 var(--r-mono); color: var(--r-faint); letter-spacing: 0; }
#uap-rail .r-tab[aria-pressed="true"] .r-tab-count { color: var(--r-accent-2); }

/* ---------- notices --------------------------------------------------------------------------- */

#uap-rail .r-notices { flex: none; padding: 0 20px; }
#uap-rail .r-notice {
  margin-top: 10px; padding: 8px 10px 8px 12px; border-radius: 8px;
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 12.5px; line-height: 1.45; color: var(--r-ink-2);
  border: 1px solid var(--r-rule-strong); background: var(--r-raise-1);
  animation: r-fade .2s ease-out;
}
#uap-rail .r-notice > span { flex: 1; min-width: 0; padding-top: 1px; }
#uap-rail .r-notice.is-warn { border-color: var(--r-warn-line); background: var(--r-warn-tint); }
#uap-rail .r-notice.is-bad { border-color: var(--r-bad-line); background: var(--r-bad-tint); }
#uap-rail .r-notice.is-ok { border-color: var(--r-ok-line); }
#uap-rail .r-notice .r-iconbtn { width: 22px; height: 22px; margin: -1px -3px -1px 0; }
#uap-rail .r-notice .r-iconbtn svg { width: 13px; height: 13px; }
#uap-rail .r-notice .r-btn { flex: none; }

/* ---------- scroll body ----------------------------------------------------------------------- */

#uap-rail .r-body {
  flex: 1; min-height: 0; position: relative;
  overflow-y: auto; overflow-x: hidden; overscroll-behavior: contain;
  scrollbar-width: thin; scrollbar-color: var(--r-rule-strong) transparent;
  margin-top: 6px;
}
#uap-rail .r-body::-webkit-scrollbar { width: 8px; }
#uap-rail .r-body::-webkit-scrollbar-thumb { background: var(--r-rule-strong); border-radius: 8px; border: 2px solid transparent; background-clip: padding-box; }
#uap-rail .r-body::-webkit-scrollbar-track { background: transparent; }

/* ---------- shared bits: buttons, pills, avatars ------------------------------------------------ */

#uap-rail .r-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 30px; padding: 0 12px; border-radius: 8px;
  font-size: 12.5px; font-weight: 500; white-space: nowrap;
  border: 1px solid var(--r-rule-strong); background: var(--r-raise-1); color: var(--r-ink);
}
#uap-rail .r-btn svg { width: 14px; height: 14px; }
#uap-rail .r-btn:hover { border-color: var(--r-accent); background: var(--r-raise-2); }
#uap-rail .r-btn.is-primary { background: var(--r-accent); border-color: var(--r-accent); color: var(--r-on-accent); font-weight: 600; }
#uap-rail .r-btn.is-primary:hover { background: var(--r-accent-2); border-color: var(--r-accent-2); }
#uap-rail .r-btn.is-ghost { border-color: transparent; background: transparent; color: var(--r-ink-2); }
#uap-rail .r-btn.is-ghost:hover { border-color: transparent; background: var(--r-raise-2); color: var(--r-ink); }
#uap-rail .r-btn.is-small { height: 26px; padding: 0 9px; font-size: 12px; border-radius: 7px; }
#uap-rail .r-btn.is-danger:hover { border-color: var(--r-bad); color: var(--r-bad); }
#uap-rail .r-btn:disabled:hover { border-color: var(--r-rule-strong); background: var(--r-raise-1); }
#uap-rail .r-btn.is-primary:disabled:hover { background: var(--r-accent); border-color: var(--r-accent); }

#uap-rail .r-pill {
  display: inline-flex; align-items: center; gap: 5px;
  font: 500 9.5px/1 var(--r-mono); letter-spacing: .08em; text-transform: uppercase;
  padding: 4px 7px 3px; border-radius: 4px; border: 1px solid var(--r-rule-strong); color: var(--r-muted);
  white-space: nowrap;
}
#uap-rail .r-pill.is-curator { color: var(--r-accent-2); border-color: var(--r-accent-line); background: var(--r-accent-tint); }
#uap-rail .r-pill.is-kind { color: var(--r-gold); border-color: var(--r-gold-line); background: var(--r-gold-tint); }
#uap-rail .r-pill.is-agent { color: var(--r-accent-2); border-color: var(--r-accent-line); }
#uap-rail .r-pill.is-pinned { color: var(--r-gold); border-color: var(--r-gold-line); }
#uap-rail .r-pill.is-held {
  font: 500 11px/1 var(--r-sans); letter-spacing: 0; text-transform: none;
  color: var(--r-warn); border-color: var(--r-warn-line); background: var(--r-warn-tint); padding: 4px 8px;
}
#uap-rail .r-pill.is-you { color: var(--r-ink-2); }

#uap-rail .r-avatar {
  width: 28px; height: 28px; flex: none; border-radius: 7px; overflow: hidden;
  background: var(--r-raise-2); display: grid; place-items: center;
}
#uap-rail .r-avatar svg { width: 100%; height: 100%; stroke: none; }
#uap-rail .r-avatar.is-agent { color: var(--r-accent); background: var(--r-accent-tint); box-shadow: inset 0 0 0 1px var(--r-accent-line); }
#uap-rail .r-avatar.is-agent svg { width: 16px; height: 16px; stroke: currentColor; }
#uap-rail .r-avatar.is-small { width: 20px; height: 20px; border-radius: 5px; }
#uap-rail .r-avatar.is-small.is-agent svg { width: 12px; height: 12px; }

#uap-rail .r-who { display: flex; align-items: center; gap: 8px; flex: 1; min-width: 0; flex-wrap: wrap; }
#uap-rail .r-name { font-size: 13px; font-weight: 600; color: var(--r-ink); letter-spacing: -.005em; }
#uap-rail .r-time { font: 400 11px/1 var(--r-mono); color: var(--r-faint); white-space: nowrap; margin-left: auto; letter-spacing: .01em; }

/* ---------- posts ------------------------------------------------------------------------------- */

#uap-rail .r-toolbar {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 8px 20px 10px; border-bottom: 1px solid var(--r-rule);
}
#uap-rail .r-list { padding-bottom: 8px; }
#uap-rail .r-post { position: relative; padding: 16px 20px 10px; border-bottom: 1px solid var(--r-rule); }
#uap-rail .r-post:last-child { border-bottom: 0; }
#uap-rail .r-post.is-agent { box-shadow: inset 2px 0 0 var(--r-accent-line); }
#uap-rail .r-post.is-held { opacity: .88; }
#uap-rail .r-post.is-deleted .r-md { color: var(--r-faint); font-style: italic; }
#uap-rail .r-post.is-new { animation: r-flash 2.6s ease-out; }
#uap-rail .r-post-head { display: flex; align-items: center; gap: 10px; margin-bottom: 9px; }
#uap-rail .r-shared {
  display: flex; flex-direction: column; gap: 2px; margin: -2px 0 10px;
  padding: 7px 10px 8px; border-left: 2px solid var(--r-rule-strong);
  font-size: 12px; line-height: 1.45; color: var(--r-muted);
}
#uap-rail .r-shared b { font-weight: 500; color: var(--r-ink-2); }
#uap-rail .r-shared q { font-family: var(--r-serif); font-style: italic; font-size: 13px; color: var(--r-ink-2); quotes: "\201C" "\201D"; }
#uap-rail .r-held-line { margin: -2px 0 10px; }

#uap-rail .r-md { font-size: 15px; line-height: 1.55; color: var(--r-ink-2); overflow-wrap: anywhere; }
#uap-rail .r-md > * + * { margin-top: .6em; }
#uap-rail .r-md strong { font-weight: 600; color: var(--r-ink); }
#uap-rail .r-md em { font-style: italic; }
#uap-rail .r-md blockquote {
  padding: 2px 0 2px 12px; border-left: 2px solid var(--r-gold-line);
  font-family: var(--r-serif); font-size: 14.5px; color: var(--r-ink-2);
}
#uap-rail .r-md ul { padding-left: 1.1em; list-style: disc; }
#uap-rail .r-md li + li { margin-top: .2em; }
#uap-rail .r-md li::marker { color: var(--r-faint); }
#uap-rail .r-md a { color: var(--r-accent-2); text-decoration: underline; text-decoration-color: var(--r-accent-line); text-underline-offset: .16em; }
#uap-rail .r-md a:hover { text-decoration-color: currentColor; }
#uap-rail .r-md.is-compact { font-size: 14.5px; }

#uap-rail .r-cites { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
#uap-rail .r-cite {
  display: inline-flex; align-items: center; gap: 7px; max-width: 100%;
  padding: 4px 9px 4px 8px; border-radius: 999px;
  border: 1px solid var(--r-rule-strong); background: var(--r-raise-1);
  font-size: 11.5px; line-height: 1.3; color: var(--r-ink-2); text-decoration: none;
}
#uap-rail .r-cite:hover { border-color: var(--r-accent); color: var(--r-ink); text-decoration: none; }
#uap-rail .r-cite svg { width: 11px; height: 11px; color: var(--r-faint); flex: none; }
#uap-rail .r-cite span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#uap-rail .r-cite .r-ts { font: 500 10.5px/1 var(--r-mono); color: var(--r-accent-2); letter-spacing: .02em; flex: none; }

#uap-rail .r-post-foot { display: flex; align-items: center; gap: 2px; margin-top: 8px; flex-wrap: wrap; }
#uap-rail .r-act {
  display: inline-flex; align-items: center; gap: 6px; height: 26px; padding: 0 8px; border-radius: 6px;
  font-size: 12px; color: var(--r-muted); white-space: nowrap;
}
#uap-rail .r-act svg { width: 13px; height: 13px; }
#uap-rail .r-act:hover { color: var(--r-ink); background: var(--r-raise-2); }
#uap-rail .r-act.is-on { color: var(--r-accent-2); }
#uap-rail .r-act.is-on svg { fill: currentColor; stroke: currentColor; }
#uap-rail .r-act.is-right { margin-left: auto; color: var(--r-ink-2); }
#uap-rail .r-act.is-right svg { width: 12px; height: 12px; }
#uap-rail .r-act-note { font-size: 12px; color: var(--r-faint); padding: 0 8px; }
#uap-rail .r-inline {
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap; width: 100%;
  margin-top: 8px; padding: 8px 10px; border-radius: 8px; background: var(--r-raise-1); border: 1px solid var(--r-rule);
  font-size: 12px; color: var(--r-muted);
}
#uap-rail .r-inline > span { margin-right: 4px; }
#uap-rail .r-more { display: block; width: calc(100% - 40px); margin: 10px 20px 6px; }

/* ---------- thread ------------------------------------------------------------------------------ */

#uap-rail .r-thread-bar {
  position: sticky; top: 0; z-index: 2;
  display: flex; align-items: center; gap: 8px; padding: 6px 14px 6px 12px;
  background: var(--r-glass); -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--r-rule);
}
#uap-rail .r-thread-bar .r-stamp { margin-left: auto; }
#uap-rail .r-back { display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 8px; border-radius: 7px; color: var(--r-ink-2); font-size: 12.5px; }
#uap-rail .r-back svg { width: 14px; height: 14px; }
#uap-rail .r-back:hover { color: var(--r-ink); background: var(--r-raise-2); }
#uap-rail .r-root { padding-top: 18px; }
#uap-rail .r-root .r-md { font-size: 15.5px; }
#uap-rail .r-section-label { padding: 14px 20px 2px; }
#uap-rail .r-reply { position: relative; padding: 13px 20px 8px; border-bottom: 1px solid var(--r-rule); }
#uap-rail .r-reply:last-child { border-bottom: 0; }
#uap-rail .r-reply.is-agent { box-shadow: inset 2px 0 0 var(--r-accent-line); }
#uap-rail .r-reply.is-nested { padding-left: 36px; }
#uap-rail .r-reply.is-nested::before { content: ""; position: absolute; left: 21px; top: 16px; bottom: 12px; width: 1px; background: var(--r-rule-strong); }
#uap-rail .r-reply .r-md { font-size: 14.5px; }
#uap-rail .r-reply .r-avatar { width: 24px; height: 24px; border-radius: 6px; }
#uap-rail .r-reply .r-avatar.is-agent svg { width: 14px; height: 14px; }
#uap-rail .r-quote {
  display: flex; flex-direction: column; gap: 1px; margin: 0 0 8px;
  padding: 6px 10px; border-left: 2px solid var(--r-rule-strong); border-radius: 0 6px 6px 0;
  background: var(--r-raise-1); font-size: 12px; line-height: 1.45; color: var(--r-muted);
}
#uap-rail .r-quote b { color: var(--r-ink-2); font-weight: 600; }
#uap-rail .r-quote span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-family: var(--r-serif); font-style: italic; color: var(--r-muted); }

/* ---------- composer ---------------------------------------------------------------------------- */

#uap-rail .r-composer { flex: none; border-top: 1px solid var(--r-rule); padding: 12px 20px 14px; background: var(--r-glass); }
#uap-rail .r-replying {
  display: inline-flex; align-items: center; gap: 6px; margin-bottom: 8px;
  padding: 3px 4px 3px 9px; border-radius: 999px; border: 1px solid var(--r-rule-strong); background: var(--r-raise-1);
  font-size: 11.5px; color: var(--r-muted); max-width: 100%;
}
#uap-rail .r-replying b { color: var(--r-ink-2); font-weight: 600; }
#uap-rail .r-replying .r-iconbtn { width: 18px; height: 18px; border-radius: 50%; }
#uap-rail .r-replying .r-iconbtn svg { width: 11px; height: 11px; }
#uap-rail .r-ta {
  display: block; width: 100%; resize: none; min-height: 42px; max-height: 180px;
  padding: 10px 12px; border-radius: 10px;
  border: 1px solid var(--r-rule-strong); background: var(--r-raise-1); color: var(--r-ink);
  font-family: var(--r-sans); font-size: 14px; line-height: 1.45; overflow-y: auto;
  transition: border-color .18s ease-out, box-shadow .18s ease-out;
}
#uap-rail .r-ta::placeholder { color: var(--r-faint); }
#uap-rail .r-ta:focus { border-color: var(--r-accent); box-shadow: 0 0 0 3px var(--r-accent-tint); outline: none; }
#uap-rail .r-ta:disabled { opacity: .55; }
#uap-rail .r-composer-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 8px; min-height: 26px; }
#uap-rail .r-asline { display: flex; align-items: center; gap: 6px; min-width: 0; font-size: 11.5px; color: var(--r-faint); }
#uap-rail .r-asline > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#uap-rail .r-asline b { color: var(--r-muted); font-weight: 500; }
#uap-rail .r-asline .r-link { color: var(--r-faint); text-decoration: underline; text-underline-offset: .14em; font-size: 11.5px; white-space: nowrap; }
#uap-rail .r-asline .r-link:hover { color: var(--r-ink-2); }
#uap-rail .r-count { font: 400 10.5px/1 var(--r-mono); color: var(--r-faint); }
#uap-rail .r-count.is-over { color: var(--r-bad); }
#uap-rail .r-blocked { font-size: 12.5px; color: var(--r-warn); padding: 6px 0 2px; line-height: 1.45; }

/* ---------- empty, skeleton -------------------------------------------------------------------- */

#uap-rail .r-empty { padding: 44px 28px 36px; text-align: center; color: var(--r-muted); font-size: 13.5px; line-height: 1.55; }
#uap-rail .r-empty-glyph { width: 28px; height: 28px; margin: 0 auto 14px; color: var(--r-faint); }
#uap-rail .r-empty-title { font: 500 17px/1.3 var(--r-serif); color: var(--r-ink); margin-bottom: 6px; letter-spacing: -.01em; }
#uap-rail .r-empty-hint { display: block; margin-top: 12px; font-size: 12.5px; color: var(--r-faint); }
#uap-rail .r-empty .r-btn { margin-top: 16px; }

#uap-rail .r-skel { padding: 16px 20px 14px; border-bottom: 1px solid var(--r-rule); }
#uap-rail .r-skel-row { display: flex; gap: 10px; align-items: center; margin-bottom: 12px; }
#uap-rail .r-sk { position: relative; overflow: hidden; border-radius: 5px; background: var(--r-raise-2); height: 10px; }
#uap-rail .r-sk::after {
  content: ""; position: absolute; inset: 0; transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, var(--r-shimmer), transparent);
  animation: r-shimmer 1.5s infinite;
}
#uap-rail .r-sk.is-avatar { width: 28px; height: 28px; border-radius: 7px; flex: none; }
#uap-rail .r-sk.is-line { margin-top: 8px; }
#uap-rail .r-sk.is-card { height: 84px; border-radius: 12px; margin-bottom: 10px; }

/* ---------- agent chat --------------------------------------------------------------------------- */

#uap-rail .r-chat { display: flex; flex-direction: column; gap: 16px; padding: 18px 20px 10px; }
#uap-rail .r-msg { display: flex; flex-direction: column; max-width: 94%; }
#uap-rail .r-msg.is-user { align-self: flex-end; align-items: flex-end; max-width: 86%; }
#uap-rail .r-msg.is-agent { align-self: flex-start; }
#uap-rail .r-msg-meta { display: flex; align-items: center; gap: 7px; margin-bottom: 6px; font: 400 11px/1 var(--r-mono); color: var(--r-faint); letter-spacing: .02em; }
#uap-rail .r-msg-meta b { font: 600 12px/1 var(--r-sans); color: var(--r-ink-2); letter-spacing: 0; }
#uap-rail .r-bubble { padding: 10px 14px 11px; border-radius: 14px; font-size: 14.5px; line-height: 1.5; }
#uap-rail .is-user .r-bubble { background: var(--r-accent-tint); border: 1px solid var(--r-accent-line); border-bottom-right-radius: 5px; color: var(--r-ink); }
#uap-rail .is-agent .r-bubble { background: var(--r-raise-1); border: 1px solid var(--r-rule); border-bottom-left-radius: 5px; color: var(--r-ink-2); }
#uap-rail .is-agent .r-bubble .r-md { font-size: 14.5px; }
#uap-rail .r-msg.is-failed .r-bubble { border-color: var(--r-bad-line); color: var(--r-muted); font-style: italic; }
#uap-rail .r-pending { display: inline-flex; align-items: center; gap: 10px; color: var(--r-muted); font-size: 13px; font-style: italic; font-family: var(--r-serif); }
#uap-rail .r-dots { display: inline-flex; gap: 4px; align-items: center; }
#uap-rail .r-dots i { width: 5px; height: 5px; border-radius: 50%; background: var(--r-accent); display: block; animation: r-pulse 1.2s infinite ease-in-out; }
#uap-rail .r-dots i:nth-child(2) { animation-delay: .16s; }
#uap-rail .r-dots i:nth-child(3) { animation-delay: .32s; }
#uap-rail .r-msg-actions { display: flex; gap: 4px; margin-top: 6px; }
#uap-rail .r-msg-actions .r-act { height: 24px; font-size: 11.5px; }
#uap-rail .r-suggest { padding: 6px 20px 18px; }
#uap-rail .r-suggest .r-stamp { margin: 8px 0 10px; }
#uap-rail .r-suggest button {
  display: flex; align-items: center; gap: 10px; width: 100%; text-align: left;
  padding: 10px 12px; margin-top: 6px; border-radius: 10px;
  border: 1px solid var(--r-rule); background: var(--r-raise-1);
  font: 400 14px/1.4 var(--r-serif); color: var(--r-ink-2);
}
#uap-rail .r-suggest button svg { width: 13px; height: 13px; flex: none; color: var(--r-faint); margin-left: auto; }
#uap-rail .r-suggest button:hover { border-color: var(--r-accent-line); color: var(--r-ink); background: var(--r-raise-2); }
#uap-rail .r-suggest button:hover svg { color: var(--r-accent); }

/* ---------- tasks -------------------------------------------------------------------------------- */

#uap-rail .r-tasks-bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 8px 20px 12px; border-bottom: 1px solid var(--r-rule); }
#uap-rail .r-seg { display: inline-flex; padding: 2px; gap: 2px; border-radius: 8px; background: var(--r-raise-1); border: 1px solid var(--r-rule); }
#uap-rail .r-seg button { height: 24px; padding: 0 10px; border-radius: 6px; font-size: 12px; font-weight: 500; color: var(--r-muted); }
#uap-rail .r-seg button:hover { color: var(--r-ink); }
#uap-rail .r-seg button[aria-pressed="true"] { background: var(--r-raise-2); color: var(--r-ink); box-shadow: inset 0 0 0 1px var(--r-rule-strong); }
#uap-rail .r-tasks { display: flex; flex-direction: column; gap: 10px; padding: 12px 16px 18px; }
#uap-rail .r-task { position: relative; padding: 13px 14px 12px; border-radius: 12px; border: 1px solid var(--r-rule); background: var(--r-raise-1); transition: border-color .18s ease-out; }
#uap-rail .r-task:hover { border-color: var(--r-rule-strong); }
#uap-rail .r-task.is-new { animation: r-flash 2.6s ease-out; }
#uap-rail .r-task-top { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-bottom: 9px; }
#uap-rail .r-task-top .r-time { margin-left: auto; }
#uap-rail .r-task-title { font: 500 15.5px/1.35 var(--r-serif); color: var(--r-ink); letter-spacing: -.01em; margin-bottom: 6px; }
#uap-rail .r-task-brief { font-size: 13px; line-height: 1.5; color: var(--r-ink-2); }
#uap-rail .r-task-brief.is-clamped { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
#uap-rail .r-task-meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 10px; font: 400 11px/1.4 var(--r-mono); color: var(--r-faint); letter-spacing: .01em; }
#uap-rail .r-task-meta b { font-weight: 500; color: var(--r-muted); }
#uap-rail .r-status { display: inline-flex; align-items: center; gap: 6px; color: var(--r-muted); }
#uap-rail .r-status::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; flex: none; }
#uap-rail .r-status.is-claimed { color: var(--r-warn); }
#uap-rail .r-status.is-submitted { color: var(--r-info); }
#uap-rail .r-status.is-accepted { color: var(--r-ok); }
#uap-rail .r-status.is-declined { color: var(--r-bad); }
#uap-rail .r-task-actions { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 11px; }
#uap-rail .r-agentwait { display: inline-flex; align-items: center; gap: 9px; margin-top: 10px; font-size: 12.5px; color: var(--r-muted); font-style: italic; font-family: var(--r-serif); }
#uap-rail .r-sub {
  margin-top: 10px; padding: 9px 11px 10px; border-radius: 8px;
  background: var(--r-raise-1); border: 1px solid var(--r-rule); font-size: 12.5px; line-height: 1.5; color: var(--r-ink-2);
}
#uap-rail .r-sub-head { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; font: 400 10.5px/1 var(--r-mono); color: var(--r-faint); letter-spacing: .04em; }
#uap-rail .r-sub-head b { font: 600 12px/1 var(--r-sans); color: var(--r-ink-2); letter-spacing: 0; }
#uap-rail .r-sub-links { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
#uap-rail .r-sub-note { margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--r-rule); color: var(--r-muted); }
#uap-rail .r-sub-note b { color: var(--r-ink-2); font-weight: 600; }
#uap-rail .r-sub-note.is-accepted b { color: var(--r-ok); }
#uap-rail .r-sub-note.is-declined b { color: var(--r-bad); }
#uap-rail .r-sub-note.is-changes b { color: var(--r-warn); }
#uap-rail .r-divider { display: flex; align-items: center; gap: 10px; padding: 8px 2px 0; font: 500 10.5px/1 var(--r-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--r-faint); }
#uap-rail .r-divider::before, #uap-rail .r-divider::after { content: ""; flex: 1; height: 1px; background: var(--r-rule); }
#uap-rail .r-divider.is-left::before { display: none; }
#uap-rail .r-divider.is-left { padding-left: 4px; }
#uap-rail .r-tasks-bar-acts { display: inline-flex; align-items: center; gap: 6px; flex: none; }

/* ---------- brief (contract §11) ----------------------------------------------------------------- */

#uap-rail .r-brief { display: flex; flex-direction: column; gap: 10px; padding: 12px 16px 18px; }
#uap-rail .r-brief-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
#uap-rail .r-brief-title { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; min-width: 0; }
#uap-rail .r-brief-title .r-stamp { white-space: nowrap; }
#uap-rail .r-brief-title b { font: 500 17px/1.2 var(--r-serif); color: var(--r-ink); letter-spacing: -.01em; }
#uap-rail .r-brief-lead { margin: -2px 0 2px; font: 400 12.5px/1.5 var(--r-sans); color: var(--r-muted); }
#uap-rail .r-brief-item { position: relative; padding: 13px 14px 12px; border-radius: 12px; border: 1px solid var(--r-rule); background: var(--r-raise-1); }
#uap-rail .r-brief-item::before { content: ""; position: absolute; left: 0; top: 14px; bottom: 14px; width: 2px; border-radius: 2px; background: var(--r-ok); opacity: .7; }
#uap-rail .r-brief-item .r-sub-links { margin-top: 8px; }
#uap-rail .r-brief-item .r-task-meta { margin-top: 9px; }
#uap-rail .r-brief-open { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
#uap-rail .r-brief-open li { padding: 10px 12px 10px; border-radius: 10px; border: 1px dashed var(--r-rule-strong); background: transparent; }
#uap-rail .r-brief-open-meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 6px; font: 400 11px/1.4 var(--r-mono); color: var(--r-faint); }
#uap-rail .r-brief-open .r-sub-note { font-size: 12.5px; }
#uap-rail .r-brief-foot { padding: 4px 2px 0; color: var(--r-faint); }
#uap-rail .r-linkbtn { display: inline; padding: 0; margin: 0; border: 0; background: none; text-align: left; font: 500 14.5px/1.35 var(--r-serif); color: var(--r-ink); letter-spacing: -.01em; cursor: pointer; text-decoration: underline; text-decoration-color: var(--r-rule-strong); text-underline-offset: 3px; }
#uap-rail .r-linkbtn:hover { text-decoration-color: currentColor; }
#uap-rail .r-linkbtn:focus-visible { outline: 2px solid var(--r-accent); outline-offset: 2px; border-radius: 3px; }

/* ---------- forms -------------------------------------------------------------------------------- */

#uap-rail .r-form { display: flex; flex-direction: column; gap: 10px; padding: 14px 14px 14px; border-radius: 12px; border: 1px solid var(--r-rule-strong); background: var(--r-raise-1); animation: r-fade .2s ease-out; }
#uap-rail .r-form-title { font: 500 15px/1.3 var(--r-serif); color: var(--r-ink); display: flex; align-items: center; justify-content: space-between; gap: 10px; }
#uap-rail .r-field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
#uap-rail .r-field > label, #uap-rail .r-label { font: 500 10.5px/1 var(--r-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--r-faint); }
#uap-rail .r-row { display: flex; gap: 10px; }
#uap-rail .r-row > * { flex: 1; min-width: 0; }
#uap-rail .r-input, #uap-rail .r-select, #uap-rail .r-ta.is-field {
  width: 100%; height: 34px; padding: 0 10px; border-radius: 8px;
  border: 1px solid var(--r-rule-strong); background: var(--r-raise-1); color: var(--r-ink);
  font-size: 13.5px; font-family: var(--r-sans); line-height: 32px;
  transition: border-color .18s ease-out, box-shadow .18s ease-out;
}
#uap-rail .r-ta.is-field { height: auto; min-height: 76px; line-height: 1.45; padding: 9px 10px; }
#uap-rail .r-input::placeholder, #uap-rail .r-ta.is-field::placeholder { color: var(--r-faint); }
#uap-rail .r-input:focus, #uap-rail .r-select:focus, #uap-rail .r-ta.is-field:focus { border-color: var(--r-accent); box-shadow: 0 0 0 3px var(--r-accent-tint); outline: none; }
#uap-rail .r-input.is-invalid { border-color: var(--r-bad-line); }
#uap-rail .r-input.is-mono { font-family: var(--r-mono); font-size: 12.5px; letter-spacing: .01em; }
#uap-rail .r-select {
  -webkit-appearance: none; appearance: none; padding-right: 28px; cursor: pointer;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%239d988d' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 10px center;
}
#uap-rail .r-select option { background: var(--r-surface); color: var(--r-ink); }
#uap-rail .r-help { font-size: 12px; line-height: 1.45; color: var(--r-muted); }
#uap-rail .r-help.is-bad { color: var(--r-bad); }
#uap-rail .r-help.is-ok { color: var(--r-ok); }
#uap-rail .r-form-foot { display: flex; align-items: center; justify-content: flex-end; gap: 8px; margin-top: 2px; }
#uap-rail .r-form-foot .r-help { margin-right: auto; }
#uap-rail .r-choice { display: inline-flex; padding: 2px; gap: 2px; border-radius: 8px; background: var(--r-raise-1); border: 1px solid var(--r-rule-strong); height: 34px; }
#uap-rail .r-choice button { flex: 1; border-radius: 6px; font-size: 12.5px; font-weight: 500; color: var(--r-muted); padding: 0 8px; }
#uap-rail .r-choice button[aria-pressed="true"] { background: var(--r-raise-2); color: var(--r-ink); box-shadow: inset 0 0 0 1px var(--r-rule-strong); }

/* ---------- identity sheet ----------------------------------------------------------------------- */

#uap-rail .r-sheet {
  position: absolute; inset: 0; z-index: 6;
  display: flex; flex-direction: column; justify-content: flex-end; padding: 14px;
  background: var(--r-scrim); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  animation: r-fade .2s ease-out;
}
#uap-rail .r-sheet-card {
  width: 100%; max-height: 100%; overflow-y: auto; padding: 18px 18px 16px;
  border-radius: 14px; border: 1px solid var(--r-rule-strong); background: var(--r-glass-solid);
  box-shadow: var(--r-shadow); animation: r-rise .22s ease-out;
}
#uap-rail .r-sheet-head { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 4px; }
#uap-rail .r-sheet-head h3 { flex: 1; font: 500 18px/1.25 var(--r-serif); color: var(--r-ink); letter-spacing: -.012em; padding-top: 3px; }
#uap-rail .r-lead { font-size: 13px; line-height: 1.5; color: var(--r-muted); margin-bottom: 14px; }
#uap-rail .r-key {
  display: flex; align-items: center; gap: 10px; padding: 10px 10px 10px 12px;
  border-radius: 10px; border: 1px dashed var(--r-rule-strong); background: var(--r-raise-1);
}
#uap-rail .r-key code { flex: 1; font: 500 12px/1.55 var(--r-mono); color: var(--r-accent-2); overflow-wrap: anywhere; word-break: break-all; user-select: all; background: none; padding: 0; }
#uap-rail .r-key-note { margin-top: 12px; padding: 10px 12px; border-radius: 8px; background: var(--r-gold-tint); border: 1px solid var(--r-gold-line); font-size: 12.5px; line-height: 1.5; color: var(--r-ink-2); }
#uap-rail .r-check { display: flex; align-items: flex-start; gap: 9px; margin-top: 12px; font-size: 12.5px; line-height: 1.45; color: var(--r-ink-2); cursor: pointer; }
#uap-rail .r-check input { width: 15px; height: 15px; margin-top: 2px; accent-color: var(--r-accent); flex: none; cursor: pointer; }
#uap-rail .r-sheet .r-form-foot { margin-top: 14px; }
#uap-rail .r-sheet .r-link { font-size: 12.5px; color: var(--r-muted); text-decoration: underline; text-underline-offset: .14em; }
#uap-rail .r-sheet .r-link:hover { color: var(--r-ink); }

/* ---------- misc --------------------------------------------------------------------------------- */

#uap-rail .r-mono { font-family: var(--r-mono); }
#uap-rail .r-muted { color: var(--r-muted); }
#uap-rail .r-center { text-align: center; }
#uap-rail .r-pad { padding: 14px 20px; }
#uap-rail .r-footline { padding: 10px 20px 16px; font-size: 11.5px; color: var(--r-faint); text-align: center; }
#uap-rail .r-footline a { color: var(--r-faint); text-decoration: underline; text-underline-offset: .14em; }

@keyframes r-shimmer { to { transform: translateX(100%); } }
@keyframes r-pulse { 0%, 80%, 100% { opacity: .25; transform: scale(.8); } 40% { opacity: 1; transform: scale(1); } }
@keyframes r-fade { from { opacity: 0; } }
@keyframes r-rise { from { opacity: 0; transform: translateY(10px); } }
@keyframes r-flash { from { background-color: var(--r-accent-tint); } to { background-color: transparent; } }

/* ---------- sheet mode (below 1100px the panel is a bottom sheet) --------------------------------- */

@media (max-width: 1099.98px) {
  #uap-rail .r-panel {
    top: auto; left: 0; right: 0; bottom: 0; width: 100%; max-width: none;
    height: 82vh; height: 82dvh;
    border-left: 0; border-top: 1px solid var(--r-rule-strong); border-radius: 16px 16px 0 0;
    transform: translateY(calc(100% + 40px));
  }
  #uap-rail .r-panel::before {
    content: ""; position: absolute; top: 7px; left: 50%; width: 36px; height: 4px; margin-left: -18px;
    border-radius: 2px; background: var(--r-rule-strong);
  }
  #uap-rail[data-state="open"] .r-scrim { opacity: 1; visibility: visible; transition: opacity .2s ease-out, visibility 0s; }
  #uap-rail .r-head { padding-top: 18px; }
  #uap-rail .r-handle { top: auto; bottom: 18vh; transform: none; }
  #uap-rail[data-state="open"] .r-handle { transform: translateX(120%); }
  #uap-rail .r-sheet { padding: 10px; }
  #uap-rail .r-composer { padding-bottom: calc(14px + env(safe-area-inset-bottom, 0px)); }
}
/* Phones: size the root in viewport units, not inset:0. When the page's own content overflows the screen
   (the site's topbar does at 390px today), mobile Chrome grows the layout viewport to the content width and
   a fixed inset:0 box grows with it — measured 700x1515 on a 390x844 phone — while 100vw/100vh stay the
   screen. The sheet therefore stays exactly one screen wide and tall whatever the page does. */
@media (max-width: 760px) {
  #uap-rail { inset: auto; top: 0; left: 0; width: 100vw; height: 100vh; height: 100dvh; }
  /* A 319px vertical tab covers a phone's text column; here the handle is a 46px glass disc at the bottom
     right, glyph only, with the unread badge riding its corner. Counts live in the header once opened. */
  #uap-rail .r-handle {
    top: auto; right: 14px; bottom: calc(22px + env(safe-area-inset-bottom, 0px)); transform: none;
    width: 46px; height: 46px; padding: 0; gap: 0; justify-content: center;
    border: 1px solid var(--r-rule-strong); border-radius: 50%;
    box-shadow: 0 10px 28px rgba(0, 0, 0, .35);
  }
  #uap-rail .r-handle-glyph { width: 20px; height: 20px; }
  #uap-rail .r-handle-text, #uap-rail .r-handle-counts { display: none; }
  #uap-rail .r-handle-badge { position: absolute; top: -5px; right: -5px; border: 2px solid var(--r-ground); height: 20px; min-width: 20px; border-radius: 10px; line-height: 16px; }
  #uap-rail[data-state="open"] .r-handle { transform: translateY(140%); }
}
@media (max-width: 480px) {
  #uap-rail .r-post, #uap-rail .r-toolbar, #uap-rail .r-composer, #uap-rail .r-chat, #uap-rail .r-suggest, #uap-rail .r-tasks-bar, #uap-rail .r-notices, #uap-rail .r-head, #uap-rail .r-section-label { padding-left: 16px; padding-right: 16px; }
  #uap-rail .r-reply { padding-left: 16px; padding-right: 16px; }
  #uap-rail .r-reply.is-nested { padding-left: 32px; }
  #uap-rail .r-reply.is-nested::before { left: 17px; }
  #uap-rail .r-tasks { padding-left: 12px; padding-right: 12px; }
  #uap-rail .r-more { width: calc(100% - 32px); margin-left: 16px; margin-right: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  #uap-rail *, #uap-rail *::before, #uap-rail *::after { transition: none !important; animation: none !important; }
  #uap-rail .r-sk::after { display: none; }
  #uap-rail .r-dots i { opacity: .7; }
}
@media print {
  #uap-rail { display: none !important; }
}