/* Aeron Chat. One sheet, no imports. The page is a ledger: a ruled list of
   sessions on the left, entries in the middle, a ticket at the bottom. */

:root {
  --canvas: #ffffff;
  --ink: #0a0a0a;
  --charcoal: #3b3b3b;
  --slate: #4a4a4a;
  --ash: #676767;
  --mute: #8a8a8a;
  --stone: #ababab;
  --hairline: #d0d5db;
  --hairline-soft: #e5e7eb;
  --paper: #fafbfa;
  --accent: #09f875;
  --accent-deep: #059a4c;
  --accent-stroke: #07d465;
  --accent-wash: rgba(9, 248, 117, 0.10);
  --code-bg: #0a0a0a;
  --code-ink: #f2f2f2;
  --scrim: rgba(10, 10, 10, 0.38);
  --lockup-filter: none;
  --display: 'Space Grotesk', sans-serif;
  --body: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-hover: 160ms;
  --side-w: 288px;
  --feed-w: 760px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --canvas: #0b0c0b; --ink: #f2f3f2; --charcoal: #d3d6d3; --slate: #b8bcb8; --ash: #8f948f;
    --mute: #757a75; --stone: #585d58; --hairline: #2b302b; --hairline-soft: #1e221e; --paper: #111311;
    --accent-deep: #1fd36b; --accent-wash: rgba(9, 248, 117, 0.12);
    --code-bg: #151815; --code-ink: #e8eae8; --scrim: rgba(0, 0, 0, 0.55); --lockup-filter: invert(1);
  }
}
:root[data-theme="dark"] {
  --canvas: #0b0c0b; --ink: #f2f3f2; --charcoal: #d3d6d3; --slate: #b8bcb8; --ash: #8f948f;
  --mute: #757a75; --stone: #585d58; --hairline: #2b302b; --hairline-soft: #1e221e; --paper: #111311;
  --accent-deep: #1fd36b; --accent-wash: rgba(9, 248, 117, 0.12);
  --code-bg: #151815; --code-ink: #e8eae8; --scrim: rgba(0, 0, 0, 0.55); --lockup-filter: invert(1);
}

* { box-sizing: border-box; margin: 0; padding: 0 }
html, body { height: 100% }
body { background: var(--canvas); color: var(--ink); font: 15px/1.6 var(--body); overflow: hidden; -webkit-font-smoothing: antialiased }
button, input, textarea { font: inherit; color: inherit }
a { color: var(--accent-deep) }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap }
[hidden] { display: none !important }

/* micro label: the ledger's column heading */
.lab { font: 600 10px var(--display); letter-spacing: .11em; text-transform: uppercase; color: var(--ash) }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums }

/* buttons */
.btn { height: 36px; padding: 0 16px; border: 0; background: none; border-radius: 0; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: 600 13px var(--display); letter-spacing: .02em; line-height: 1; cursor: pointer; white-space: nowrap; transition: border-color var(--dur-hover) ease, background var(--dur-hover) ease }
.btn-primary { background: var(--accent); color: #0a0a0a; clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%) }
.btn-primary:hover { background: var(--accent-stroke) }
.btn-dark { background: var(--ink); color: var(--canvas) }
.btn-outline { border: 1px solid var(--hairline); background: var(--canvas); color: var(--ink) }
.btn-outline:hover { border-color: var(--ink) }
.btn[disabled] { background: var(--hairline-soft); color: var(--mute); cursor: not-allowed; clip-path: none }
.btn.wide { width: 100% }
.ib { width: 32px; height: 32px; border: 1px solid var(--hairline); background: var(--canvas); display: inline-flex; align-items: center; justify-content: center; cursor: pointer; flex: none }
.ib:hover { border-color: var(--ink) }
.ib svg { width: 14px; height: 14px; stroke: currentColor; stroke-width: 1.6; fill: none; stroke-linecap: square }

/* ---- frame ------------------------------------------------------------ */
.app { display: grid; grid-template-columns: var(--side-w) minmax(0, 1fr); height: 100dvh; width: 100vw; overflow: hidden }
.side { border-right: 1px solid var(--hairline); background: var(--canvas); display: flex; flex-direction: column; min-height: 0 }
.main { display: flex; flex-direction: column; min-width: 0; min-height: 0 }

/* ---- sidebar: the ledger of sessions ---------------------------------- */
.side-h { display: flex; align-items: center; gap: 10px; height: 52px; padding: 0 16px; border-bottom: 1px solid var(--hairline-soft) }
.brand img { height: 15px; width: auto; display: block; filter: var(--lockup-filter) }
.side-tag { font: 600 10px var(--display); letter-spacing: .12em; text-transform: uppercase; color: var(--ink); border: 1px solid var(--ink); padding: 3px 6px; line-height: 1 }
.side-close { margin-left: auto; display: none }
.side-tools { padding: 14px 16px 10px; display: grid; gap: 8px; border-bottom: 1px solid var(--hairline-soft) }
.q { height: 34px; border: 1px solid var(--hairline); background: var(--canvas); padding: 0 10px; font-size: 13px; width: 100%; -webkit-appearance: none; appearance: none; border-radius: 0 }
.q::placeholder { color: var(--stone) }
.q:focus { outline: none; border-color: var(--ink) }

.ledger { flex: 1; overflow-y: auto; overflow-x: hidden; padding: 6px 0 12px }
.lg-h { display: flex; align-items: center; gap: 8px; padding: 14px 16px 6px }
.lg-h::after { content: ''; flex: 1; height: 1px; background: var(--hairline-soft) }
.lg-h .num { order: 3; font-size: 10.5px; color: var(--mute) }
.lg-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 10px; width: 100%; padding: 8px 14px 8px 16px; border: 0; border-left: 2px solid transparent;
  background: none; text-align: left; cursor: pointer; color: var(--charcoal); font-size: 13.5px; line-height: 1.35 }
.lg-row:hover { background: var(--paper); color: var(--ink) }
.lg-row.on { border-left-color: var(--accent); background: var(--paper); color: var(--ink) }
.lg-row .t { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; border: 0; background: none; padding: 0; text-align: left; cursor: pointer; color: inherit; font: inherit; min-width: 0; width: 100% }
.lg-row .t:focus-visible { outline-offset: 0 }
.lg-row .c { font-size: 11px; color: var(--mute) }
.lg-row.on .c { color: var(--accent-deep) }
.lg-row .x { display: none; width: 22px; height: 22px; border: 1px solid var(--hairline); background: var(--canvas); color: var(--ash); font: 600 11px var(--display); cursor: pointer; align-items: center; justify-content: center }
.lg-row:hover .x, .lg-row:focus-within .x, .lg-row.arm .x { display: inline-flex }
.lg-row:hover .c, .lg-row:focus-within .c, .lg-row.arm .c { display: none }
.lg-row .x:hover, .lg-row.arm .x { border-color: var(--ink); color: var(--ink) }
.lg-row.arm .x { width: auto; padding: 0 6px; letter-spacing: .06em; text-transform: uppercase }
.lg-empty { padding: 26px 16px; color: var(--mute); font-size: 13px }

.side-f { border-top: 1px solid var(--hairline); padding: 12px 16px 14px; display: grid; gap: 12px }
.meter { display: grid; gap: 6px }
.meter-k { display: flex; justify-content: space-between; align-items: baseline }
.meter-k .num { font-size: 11px; color: var(--charcoal) }
.meter-bar { height: 8px; border: 1px solid var(--hairline); position: relative; background: repeating-linear-gradient(90deg, transparent 0 calc(10% - 1px), var(--hairline-soft) calc(10% - 1px) 10%) }
.meter-bar i { position: absolute; inset: 0 auto 0 0; background: var(--accent); width: var(--w, 0%); transition: width 320ms var(--ease-out) }
.meter-bar.spent i { background: var(--ink) }
.meter-n { font-size: 11px; color: var(--mute) }
.side-links { display: flex; flex-wrap: wrap; gap: 6px 14px }
.lk { border: 0; background: none; padding: 0; cursor: pointer; font: 500 12px var(--display); color: var(--ash); text-decoration: none }
.lk:hover { color: var(--ink) }
.lk b { color: var(--ink); font-weight: 600 }

/* ---- top bar ---------------------------------------------------------- */
.top { display: flex; align-items: center; gap: 12px; height: 52px; padding: 0 20px; border-bottom: 1px solid var(--hairline-soft); flex: none }
.ham { display: none }
.top-title { font: 500 14px var(--display); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; flex: 1 }
.top-sum { font: 11.5px var(--mono); color: var(--ash); font-variant-numeric: tabular-nums; white-space: nowrap }
.top-sum b { color: var(--ink); font-weight: 600 }

/* ---- feed ------------------------------------------------------------- */
.feed { flex: 1; overflow-y: auto; overflow-x: hidden; min-height: 0; overscroll-behavior: contain }
.feed-in { max-width: var(--feed-w); margin: 0 auto; padding: 8px 20px 24px }

.empty { padding: 56px 0 24px }
.empty h2 { font: 500 clamp(24px, 3vw, 30px)/1.15 var(--display); letter-spacing: -.01em; max-width: 620px; text-wrap: balance }
.empty h2 mark { background: var(--accent); color: #0a0a0a; padding: 0 .12em }
.empty p { color: var(--slate); margin-top: 12px; max-width: 560px; font-size: 14.5px }
.starts { margin-top: 28px; border-top: 1px solid var(--hairline) }
.start { display: grid; grid-template-columns: 30px minmax(0, 1fr) auto; align-items: center; gap: 12px; width: 100%; padding: 12px 8px 12px 0; border: 0; border-bottom: 1px solid var(--hairline-soft);
  background: none; text-align: left; cursor: pointer; color: var(--charcoal); font-size: 14px; transition: color var(--dur-hover) ease }
.start .n { font: 11px var(--mono); color: var(--stone) }
.start .a { color: var(--stone); font-family: var(--display) }
.start:hover { color: var(--ink) }
.start:hover .a, .start:hover .n { color: var(--accent-deep) }

.msg { padding: 20px 0 18px; border-top: 1px solid var(--hairline-soft) }
.msg:first-child { border-top: 0 }
.msg-h { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; margin-bottom: 8px }
.msg-h .lab.you { color: var(--charcoal) }
.msg-h .lab.asst { color: var(--accent-deep) }
.msg-h time { font: 11px var(--mono); color: var(--stone) }
.msg.user .msg-b { white-space: pre-wrap; overflow-wrap: anywhere; border-left: 2px solid var(--ink); padding: 8px 14px; background: var(--paper); color: var(--ink) }
.msg-b.prose { color: var(--ink); overflow-wrap: anywhere }
.msg-b .err { color: var(--charcoal); border-left: 2px solid var(--stone); padding: 6px 12px; background: var(--paper) }
.msg-b .cursor::after { content: ''; display: inline-block; width: 7px; height: 14px; margin-left: 3px; background: var(--accent); vertical-align: -2px; animation: blink 1s steps(2) infinite }
@keyframes blink { 50% { opacity: 0 } }

/* markdown */
.prose > * + * { margin-top: 10px }
.prose h1, .prose h2, .prose h3, .prose h4 { font-family: var(--display); font-weight: 600; line-height: 1.25; margin-top: 18px }
.prose h1 { font-size: 22px } .prose h2 { font-size: 19px } .prose h3 { font-size: 16px } .prose h4 { font-size: 14px }
.prose ul, .prose ol { padding-left: 22px }
.prose li + li { margin-top: 4px }
.prose blockquote { border-left: 2px solid var(--hairline); padding: 2px 14px; color: var(--slate) }
.prose hr { border: 0; border-top: 1px solid var(--hairline); margin: 16px 0 }
.prose code { font: 13px var(--mono); background: var(--hairline-soft); padding: 1px 5px }
.prose pre code { background: none; padding: 0; font-size: 12.5px; line-height: 1.6 }
.prose table { border-collapse: collapse; width: 100%; font-size: 13.5px; display: block; overflow-x: auto }
.prose th, .prose td { border-bottom: 1px solid var(--hairline-soft); padding: 7px 10px; text-align: left; vertical-align: top }
.prose th { font: 600 10px var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--ash); border-bottom-color: var(--hairline) }
.prose td { font-variant-numeric: tabular-nums }
.prose img { max-width: 100% }
.code { border: 1px solid var(--hairline); margin-top: 10px }
.code-h { display: flex; justify-content: space-between; align-items: center; padding: 5px 10px; border-bottom: 1px solid var(--hairline); font: 600 10px var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--ash) }
.cp { border: 0; background: none; cursor: pointer; font: 600 10px var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--accent-deep); padding: 2px 0 }
.cp:hover { color: var(--ink) }
.prose pre { background: var(--code-bg); color: var(--code-ink); padding: 14px 16px; overflow-x: auto; margin: 0 }

/* receipt row under every answer */
.rcpt { margin-top: 12px; border-top: 1px dashed var(--hairline); padding-top: 8px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px 14px; align-items: baseline }
.rcpt-l { font: 11.5px var(--mono); color: var(--charcoal); font-variant-numeric: tabular-nums; display: flex; flex-wrap: wrap; gap: 4px 0; min-width: 0 }
.rcpt-l > span + span::before { content: '·'; color: var(--stone); margin: 0 7px }
.rcpt-l b { font-family: var(--display); font-weight: 600; color: var(--ink) }
.rcpt-l .tier { font-family: var(--display); font-weight: 600; letter-spacing: .06em; text-transform: uppercase; font-size: 10px; color: var(--accent-deep); border: 1px solid var(--accent); padding: 1px 5px; background: var(--accent-wash) }
.rcpt-l .tier.off { color: var(--ash); border-color: var(--hairline); background: none }
.rcpt-l a { color: var(--accent-deep); text-decoration: none; font-weight: 600 }
.rcpt-l a:hover { text-decoration: underline }
.rcpt-l .dim { color: var(--mute) }
.pulse { width: 7px; height: 7px; background: var(--accent); display: inline-block; margin-right: 7px; animation: pulse 2.2s ease-in-out infinite; vertical-align: 0 }
@keyframes pulse { 0%, 100% { opacity: 1 } 50% { opacity: .25 } }
.rcpt-n { grid-column: 1 / -1; font-size: 11px; color: var(--mute) }
.rcpt-a { display: flex; gap: 12px }
.rcpt-a button { border: 0; background: none; padding: 0; cursor: pointer; font: 600 10px var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--ash) }
.rcpt-a button:hover { color: var(--ink) }
.rcpt-l .txs { border: 0; background: none; padding: 0; cursor: pointer; font: inherit; color: var(--accent-deep); font-weight: 600 }
.rcpt-l .txs::after { content: ''; display: inline-block; margin-left: 5px; border: 3px solid transparent; border-left: 4px solid currentColor; vertical-align: 1px; transition: transform var(--dur-hover) ease }
.rcpt-l .txs[aria-expanded="true"]::after { transform: rotate(90deg) }
.rcpt-l .txs:hover { text-decoration: underline }
.rcpt-x { grid-column: 1 / -1; list-style: none; border-top: 1px solid var(--hairline-soft); font: 11.5px var(--mono); color: var(--charcoal); font-variant-numeric: tabular-nums }
.rcpt-x li { display: grid; grid-template-columns: 52px minmax(0, 1fr) auto auto; gap: 14px; padding: 5px 0; border-bottom: 1px solid var(--hairline-soft); align-items: baseline }
.rcpt-x li > span:first-child { color: var(--mute) }
.rcpt-x li > span:nth-child(2) { overflow: hidden; text-overflow: ellipsis; white-space: nowrap }
.rcpt-x b { font-family: var(--display); font-weight: 600; color: var(--ink) }
.rcpt-x a { color: var(--accent-deep); text-decoration: none; font-weight: 600 }
.rcpt-x a:hover { text-decoration: underline }
.rcpt-x .dim { color: var(--mute) }

/* activity block: the ruled list of tool steps above an answer */
.act { margin: 2px 0 14px; border-top: 1px solid var(--hairline); font-size: 12.5px }
.act-h { display: flex; align-items: center; gap: 10px; min-height: 32px }
.act-k { font: 600 10px var(--display); letter-spacing: .11em; text-transform: uppercase; color: var(--ash); display: inline-flex; align-items: center }
.act-el { font: 11px var(--mono); color: var(--mute); letter-spacing: 0; text-transform: none; font-variant-numeric: tabular-nums }
.act-el:not(:empty)::before { content: '·'; color: var(--stone); margin: 0 7px }
.act-pass { font: 600 9.5px var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--ash); border: 1px solid var(--hairline); padding: 2px 5px; line-height: 1; margin-left: auto }
.act-t { display: flex; align-items: center; gap: 9px; width: 100%; min-height: 32px; padding: 0; border: 0; background: none; cursor: pointer; text-align: left;
  font: 500 12.5px var(--display); color: var(--charcoal) }
.act-t::before { content: ''; border: 4px solid transparent; border-left: 5px solid currentColor; transition: transform var(--dur-hover) ease }
.act-t[aria-expanded="true"]::before { transform: rotate(90deg) }
.act-t:hover { color: var(--ink) }
.act-rows { list-style: none; border-top: 1px solid var(--hairline-soft) }
.act-r { display: grid; grid-template-columns: 26px minmax(0, 1fr) auto; gap: 10px; padding: 7px 0; border-bottom: 1px solid var(--hairline-soft); align-items: baseline; color: var(--charcoal) }
.act-i { font: 11px var(--mono); color: var(--stone) }
.act-l { min-width: 0; overflow-wrap: anywhere }
.act-p { display: block; color: var(--mute); font-size: 11.5px; margin-top: 2px }
.act-ms { font: 11px var(--mono); color: var(--ash); font-variant-numeric: tabular-nums; white-space: nowrap }
.act-ms .pulse { margin: 0 }
.act-f { font: 600 9.5px var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--charcoal); margin-right: 7px }
.act-r.fail .act-i { color: var(--charcoal) }

/* ---- ticket: the composer --------------------------------------------- */
.ticket { flex: none; width: min(var(--feed-w), 100% - 40px); margin: 0 auto 18px; border: 1px solid var(--hairline); background: var(--canvas); position: relative;
  box-shadow: 0 1px 0 rgba(10, 10, 10, .04), 0 10px 30px rgba(10, 10, 10, .07) }
.ticket::before { content: ''; position: absolute; left: 0; right: 0; top: 0; height: 3px; background: var(--accent) }
.ticket.off::before { background: var(--stone) }
.ticket:focus-within { border-color: var(--ink) }
.ticket textarea { display: block; width: 100%; max-height: 40vh; min-height: 56px; padding: 16px 18px 6px; border: 0; background: none; resize: none; line-height: 1.5; font-size: 15px; overflow-y: auto }
.ticket textarea::placeholder { color: var(--stone) }
.ticket textarea:focus { outline: none }
.ticket textarea[disabled] { color: var(--mute) }
.tk-f { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 6px 10px 10px 18px }
.tk-hint { font-size: 11px; color: var(--stone) }
.tk-note { padding: 10px 18px; border-bottom: 1px solid var(--hairline-soft); background: var(--paper); font-size: 13px; color: var(--charcoal) }
.tk-note b { font-family: var(--display); font-weight: 600; color: var(--ink) }

/* ---- add-ons: the @ menu and the chips --------------------------------- */
.tk-chips { display: inline-flex; gap: 6px; align-items: center }
.chip { display: inline-flex; align-items: center; gap: 4px; font: 600 10px var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--accent-deep); border: 1px solid var(--accent); background: var(--accent-wash); padding: 2px 4px 2px 6px; line-height: 1 }
.chip-x { border: 0; background: none; padding: 0 2px; cursor: pointer; font: 600 12px var(--display); color: var(--accent-deep); line-height: 1 }
.chip-x:hover { color: var(--ink) }
.tk-add { border: 1px solid var(--hairline); background: var(--canvas); padding: 3px 8px; cursor: pointer; font: 600 10px var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--ash) }
.tk-add:hover, .tk-add[aria-expanded="true"] { border-color: var(--ink); color: var(--ink) }
.at-host { width: min(var(--feed-w), 100% - 40px); margin: 0 auto; position: relative; height: 0; z-index: 5 }
.at-menu { position: absolute; bottom: 8px; left: 0; min-width: 320px; max-width: 100%; list-style: none; background: var(--canvas); border: 1px solid var(--ink); box-shadow: 0 10px 30px rgba(10, 10, 10, .12) }
.at-row { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 12px; align-items: baseline; padding: 9px 12px; border-bottom: 1px solid var(--hairline-soft); cursor: pointer; font-size: 13px; color: var(--charcoal) }
.at-row:last-child { border-bottom: 0 }
.at-row.on, .at-row:hover { background: var(--paper); color: var(--ink) }
.at-l { font: 600 12px var(--mono); color: var(--accent-deep) }
.at-b { min-width: 0 }
.at-on { font: 600 9.5px var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--ash); border: 1px solid var(--hairline); padding: 1px 5px }

/* ---- the trade ticket inside an answer -------------------------------- */
.trade { margin: 14px 0 6px }
.tr { border: 1px solid var(--ink); background: var(--canvas); position: relative; padding: 12px 14px 12px }
.tr::before { content: ''; position: absolute; left: 0; right: 0; top: 0; height: 3px; background: var(--accent) }
.tr[data-status="blocked"]::before, .tr[data-status="unavailable"]::before, .tr[data-status="interrupted"]::before { background: var(--stone) }
.tr[data-status="sent"]::before { background: var(--accent-deep) }
.tr-h { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 8px }
.tr-title { font: 600 15px var(--display); color: var(--ink) }
.tr-acct { margin-left: auto; font: 11px var(--mono); color: var(--ash); display: inline-flex; gap: 8px; align-items: baseline }
.tr-acct a { color: inherit; text-decoration: none }
.tr-disconnect { border: 0; background: none; padding: 0; cursor: pointer; font: 600 10px var(--display); letter-spacing: .08em; text-transform: uppercase; color: var(--ash) }
.tr-disconnect:hover { color: var(--ink) }
.tr-grid { border-top: 1px solid var(--hairline); margin-top: 4px }
.tr-row { display: flex; justify-content: space-between; gap: 14px; padding: 6px 0; border-bottom: 1px solid var(--hairline-soft); font-size: 13px; color: var(--charcoal) }
.tr-row.big { font-size: 14px; color: var(--ink) }
.tr-row .num { font-variant-numeric: tabular-nums; font-family: var(--mono); font-size: 12.5px; color: var(--ink) }
.tr-row.big .num { font: 600 15px var(--display) }
.tr-row .worse { color: #b42318 }
.tr-row .better { color: var(--accent-deep) }
.tr-note, .tr-disc { font-size: 11px; color: var(--mute); margin-top: 6px }
.tr-st { font-size: 13px; color: var(--charcoal); margin-top: 10px; display: flex; align-items: center; gap: 4px; flex-wrap: wrap }
.tr-st.err { color: var(--charcoal); border-left: 2px solid var(--stone); padding: 4px 10px; background: var(--paper) }
.tr-st.ok { color: var(--ink) }
.tr-st.ok a { color: var(--accent-deep); text-decoration: none; font: 600 12px var(--mono) }
.tr-st .dim, .tr-st.dim { color: var(--mute) }
.tr-a { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap }
.tr-a:empty { display: none }
.prose .notice { font-size: 11.5px; color: var(--mute); border-top: 1px dashed var(--hairline); padding-top: 6px }

/* ---- account, share ---------------------------------------------------- */
.acct { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; font-size: 12px; color: var(--ash) }
.acct-in { color: var(--accent-deep) }
.acct-n { font-size: 11px; color: var(--mute); flex-basis: 100% }
.acct-a { font-size: 11.5px; color: var(--ink); text-decoration: none }
.acct-a:hover { text-decoration: underline }
.top-share { margin-left: 8px }
.dlg { border: 1px solid var(--ink); background: var(--canvas); color: var(--ink); padding: 0; width: min(520px, calc(100% - 32px)); box-shadow: 0 20px 60px rgba(10, 10, 10, .18) }
.dlg::backdrop { background: var(--scrim) }
.dlg-in { padding: 18px 20px 16px; display: grid; gap: 10px; position: relative }
.dlg-in::before { content: ''; position: absolute; left: 0; right: 0; top: 0; height: 3px; background: var(--accent) }
.dlg-in h2 { font: 600 18px var(--display); letter-spacing: -.01em }
.dlg-p { font-size: 13px; color: var(--slate) }
.dlg-row { display: flex; gap: 8px }
.dlg-row .q { flex: 1; font: 12px var(--mono) }
.dlg-a { display: flex; justify-content: flex-end; margin-top: 4px }
/* A share: the same page with no sidebar and no ticket. */
.app.share-view { grid-template-columns: minmax(0, 1fr) }
.app.share-view .side, .app.share-view .ticket, .app.share-view .at-host, .app.share-view .ham, .app.share-view .top-share { display: none }
.app.share-view .rcpt-a { display: none }
.share-h { padding: 28px 0 8px; border-bottom: 1px solid var(--hairline); margin-bottom: 6px }
.share-h h2 { font: 500 clamp(20px, 2.6vw, 26px)/1.2 var(--display); letter-spacing: -.01em; margin-top: 6px }
.share-h p { color: var(--slate); font-size: 13.5px; margin-top: 8px }
.share-h a { color: var(--accent-deep) }

/* ---- deep research ------------------------------------------------------ */
.tk-research.on { border-color: var(--accent-stroke); background: var(--accent-wash); color: var(--accent-deep) }
.tk-research.on::before { content: ''; display: inline-block; width: 6px; height: 6px; background: var(--accent); margin-right: 6px; vertical-align: 1px }
.prose .cite { color: var(--accent-deep); text-decoration: none; font: 600 11px var(--mono); vertical-align: 1px; padding: 0 1px }
.prose .cite:hover { text-decoration: underline }
.srcs { margin-top: 16px; border-top: 1px solid var(--hairline); padding-top: 8px }
.src-l { list-style: none; margin-top: 4px }
.src-l li { display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 8px; padding: 6px 0; border-bottom: 1px solid var(--hairline-soft); font-size: 13px; align-items: baseline }
.src-l li .num { font-size: 11px; color: var(--stone) }
.src-l li.cited .num { color: var(--accent-deep) }
.src-t { min-width: 0; display: grid; gap: 1px }
.src-t a { color: var(--ink); text-decoration: none; overflow: hidden; text-overflow: ellipsis; white-space: nowrap }
.src-t a:hover { text-decoration: underline }
.src-h { font: 11px var(--mono); color: var(--mute) }
.src-rule { padding: 0 !important; border-bottom: 1px dashed var(--hairline) !important; height: 0 }

/* ---- drawer ----------------------------------------------------------- */
.scrim { position: fixed; inset: 0; background: var(--scrim); z-index: 19 }
@media (max-width: 900px) {
  .app { grid-template-columns: minmax(0, 1fr) }
  .side { position: fixed; top: 0; bottom: 0; left: 0; width: min(320px, 86vw); z-index: 20; transform: translateX(-100%); transition: transform 240ms var(--ease-out); box-shadow: none }
  .app.drawer .side { transform: none; box-shadow: 0 18px 48px rgba(0, 0, 0, .15) }
  .side-close { display: inline-flex }
  .ham { display: inline-flex }
  .top { padding: 0 14px }
  .top-sum { font-size: 10.5px }
  .feed-in { padding: 4px 14px 16px }
  .ticket { width: calc(100% - 20px); margin-bottom: 10px }
  .tk-hint { display: none }
  .at-host { width: calc(100% - 20px) }
  .at-menu { min-width: 0; width: 100% }
  .tr-row { flex-direction: column; gap: 2px }
  .tr-acct { margin-left: 0 }
  .tk-f { justify-content: flex-end }
  .empty { padding-top: 32px }
  .rcpt { grid-template-columns: 1fr }
  .rcpt-a { grid-row: 3 }
  .rcpt-x li { grid-template-columns: 46px minmax(0, 1fr) auto; gap: 10px }
  .rcpt-x li > span:last-child { grid-column: 2 / -1 }
}
@media (prefers-reduced-motion: reduce) {
  .side { transition: none }
  .meter-bar i { transition: none }
  .pulse, .msg-b .cursor::after { animation: none }
  .act-t::before, .rcpt-l .txs::after { transition: none }
}