/* TaxHub — deliberately sober. This audience reads statutes for a living;
   density and legibility beat decoration. */

:root {
  --bg: #f7f6f3;
  --panel: #ffffff;
  --panel-2: #fbfaf8;
  --ink: #15171c;
  --ink-2: #4b515a;
  --ink-3: #7d848e;
  --line: #e4e1db;
  --line-2: #efedE8;
  --accent: #1c4e7a;
  --accent-2: #2f6f9f;
  --accent-soft: #eaf1f7;
  --warn: #8a5a12;
  --warn-soft: #fdf4e3;
  --crit: #9b2c2c;
  --crit-soft: #fcecea;
  --ok: #1f6b45;
  --ok-soft: #e8f4ee;
  --mark: #fcefb4;
  --r: 10px;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  --shadow: 0 1px 2px rgba(20,23,28,.05), 0 4px 16px rgba(20,23,28,.05);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101216;
    --panel: #191c22;
    --panel-2: #15181d;
    --ink: #e9eaec;
    --ink-2: #aeb4bd;
    --ink-3: #838a94;
    --line: #2a2f38;
    --line-2: #22262d;
    --accent: #7fb2dd;
    --accent-2: #9cc6e9;
    --accent-soft: #17242f;
    --warn: #d9a441;
    --warn-soft: #2a2315;
    --crit: #e88a84;
    --crit-soft: #2d1c1b;
    --ok: #74c79a;
    --ok-soft: #15281e;
    --mark: #4b4312;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 6px 20px rgba(0,0,0,.28);
  }
}

* { box-sizing: border-box; }

/* Any element carrying `hidden` must stay hidden. Component rules that set an
   explicit display (.modal-back, #boot) otherwise win over the UA default and
   the element renders anyway. */
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15.5px/1.6 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
code { font: .92em var(--mono); background: var(--line-2); padding: 1px 5px; border-radius: 4px; }
svg { width: 100%; height: 100%; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

/* ── boot ───────────────────────────────────────────────────────────────── */

#boot {
  position: fixed; inset: 0; z-index: 100;
  display: grid; place-items: center;
  background: var(--bg);
  transition: opacity .35s ease;
}
#boot.gone { opacity: 0; pointer-events: none; }
.boot-card { text-align: center; width: 260px; }
.boot-mark {
  width: 52px; height: 52px; margin: 0 auto 14px;
  display: grid; place-items: center;
  background: var(--accent); color: #fff;
  border-radius: 13px; font: 700 30px/1 serif;
}
.boot-name { font-size: 18px; font-weight: 650; letter-spacing: -0.02em; }
.boot-step { font-size: 13px; color: var(--ink-3); margin: 5px 0 16px; min-height: 20px; }
.boot-track { height: 3px; background: var(--line); border-radius: 3px; overflow: hidden; }
.boot-track > i { display: block; height: 100%; width: 5%; background: var(--accent); border-radius: 3px; transition: width .4s ease; }

/* ── header ─────────────────────────────────────────────────────────────── */

.top {
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  position: sticky; top: 0; z-index: 30;
}
.topbar {
  max-width: 1180px; margin: 0 auto; padding: 0 22px;
  display: flex; align-items: center; gap: 26px; height: 58px;
}
.brand { display: flex; align-items: center; gap: 11px; flex: none; }
.brand .mark {
  width: 32px; height: 32px; flex: none;
  display: grid; place-items: center;
  background: var(--accent); color: #fff;
  border-radius: 8px; font: 700 20px/1 serif;
}
.brandtext strong { display: block; font-size: 15px; letter-spacing: -0.01em; line-height: 1.2; }
.brandtext .sub { display: block; font-size: 11.5px; color: var(--ink-3); }

.tabs { display: flex; gap: 3px; flex: 1; }
.tabs button {
  display: inline-flex; align-items: center; gap: 7px;
  font: inherit; font-size: 14px;
  padding: 7px 13px; border-radius: 7px;
  border: none; background: none; color: var(--ink-2); cursor: pointer;
}
.tabs button svg { width: 16px; height: 16px; flex: none; opacity: .8; }
.tabs button:hover { background: var(--line-2); color: var(--ink); }
.tabs button.on { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.tab-count { font: 600 11px var(--mono); background: var(--accent); color: #fff; border-radius: 20px; padding: 1px 6px; }

.topright { display: flex; align-items: center; gap: 10px; flex: none; }
.icon-btn {
  width: 34px; height: 34px; padding: 8px; flex: none;
  border: 1px solid transparent; border-radius: 8px;
  background: none; color: var(--ink-3); cursor: pointer;
}
.icon-btn:hover { background: var(--line-2); color: var(--ink); }
.who { display: flex; align-items: center; gap: 8px; }
.avatar {
  width: 30px; height: 30px; flex: none;
  display: grid; place-items: center; border-radius: 50%;
  background: var(--line-2); color: var(--ink-2);
  font-size: 11.5px; font-weight: 700; letter-spacing: .02em;
}
.whoname { font-size: 13.5px; color: var(--ink-2); }

/* ── shell ──────────────────────────────────────────────────────────────── */

.shell {
  max-width: 1180px; margin: 0 auto; padding: 30px 22px 70px;
  display: grid; grid-template-columns: 232px 1fr; gap: 34px; align-items: start;
}
.side { position: sticky; top: 84px; display: flex; flex-direction: column; gap: 18px; }
.side-block { }
.side-block h4 {
  margin: 0 0 9px; font-size: 11.5px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .07em; color: var(--ink-3);
  display: flex; justify-content: space-between; align-items: baseline;
}
.side-note { font-size: 12.5px; color: var(--ink-3); margin: 0 0 9px; line-height: 1.5; }
.kb-stat { font-size: 13px; color: var(--ink-2); }
.kb-stat b { color: var(--ink); font-weight: 650; }
.kb-fresh { color: var(--ok); margin-top: 2px; }
.kb-fresh b { color: var(--ok); }

.lawlist { list-style: none; margin: 12px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px; }
.lawlist li {
  font: 600 11px var(--mono); padding: 2px 7px; border-radius: 4px;
  background: var(--line-2); color: var(--ink-2); cursor: default;
}

.recent { list-style: none; margin: 0; padding: 0; }
.recent li { margin-bottom: 2px; }
.recent button {
  width: 100%; text-align: left; font: inherit; font-size: 13px;
  padding: 5px 8px; border-radius: 6px; border: none; background: none;
  color: var(--ink-2); cursor: pointer;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.recent button:hover { background: var(--line-2); color: var(--accent); }
.linkbtn { font: inherit; font-size: 11px; text-transform: none; letter-spacing: 0; border: none; background: none; color: var(--ink-3); cursor: pointer; padding: 0; }
.linkbtn:hover { color: var(--accent); text-decoration: underline; }

.scenlist { list-style: none; margin: 0; padding: 0; }
.scenlist button {
  display: block; width: 100%; text-align: left; font: inherit;
  padding: 9px 11px; margin-bottom: 5px; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--line); background: var(--panel); color: var(--ink);
}
.scenlist button:hover { border-color: var(--accent); }
.scenlist button.on { border-color: var(--accent); background: var(--accent-soft); }
.scenlist .sl { display: block; font-size: 13px; font-weight: 600; }
.scenlist .sh { display: block; font-size: 11.5px; color: var(--ink-3); line-height: 1.45; margin-top: 1px; }

/* ── page head ──────────────────────────────────────────────────────────── */

.pagehead { margin-bottom: 20px; }
.pagehead h1 { font-size: 24px; line-height: 1.25; letter-spacing: -0.022em; margin: 0 0 6px; }
.lede { color: var(--ink-2); margin: 0; max-width: 66ch; font-size: 14.5px; }

/* ── ask ────────────────────────────────────────────────────────────────── */

.ask {
  display: flex; align-items: center; gap: 8px;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 11px; padding: 5px 5px 5px 13px; margin-bottom: 14px;
  box-shadow: var(--shadow);
}
.ask:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.ask-ico { width: 17px; height: 17px; flex: none; color: var(--ink-3); }
.ask input { flex: 1; font: inherit; padding: 9px 0; border: none; background: none; color: var(--ink); min-width: 0; }
.ask input:focus { outline: none; }
.slash {
  font: 600 11px var(--mono); color: var(--ink-3);
  border: 1px solid var(--line); border-radius: 5px; padding: 2px 6px; flex: none;
}
.ask:focus-within .slash { display: none; }

button[type=submit], #savekey {
  font: inherit; font-size: 14px; font-weight: 600; cursor: pointer; flex: none;
  padding: 10px 18px; border-radius: 8px;
  border: 1px solid var(--accent); background: var(--accent); color: #fff;
}
button[type=submit]:hover, #savekey:hover { background: var(--accent-2); border-color: var(--accent-2); }
button[type=submit]:disabled { opacity: .5; cursor: not-allowed; }

.mini {
  font: inherit; font-size: 12.5px; cursor: pointer;
  padding: 5px 11px; border-radius: 7px;
  border: 1px solid var(--line); background: var(--panel); color: var(--ink-2);
}
.mini:hover { border-color: var(--accent); color: var(--accent); }
.ghost { font: inherit; font-size: 13.5px; cursor: pointer; padding: 9px 14px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel); color: var(--ink-2); }
.ghost:hover { border-color: var(--crit); color: var(--crit); }
.ghost.full { width: 100%; margin-top: 12px; }

.suggest-label { font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--ink-3); margin-bottom: 9px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips button {
  font: inherit; font-size: 13px; cursor: pointer;
  padding: 6px 12px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--panel); color: var(--ink-2);
}
.chips button:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }

/* ── answer ─────────────────────────────────────────────────────────────── */

#answer-region { margin-top: 26px; }
.answer-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.mode-bar { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; font-size: 12.5px; color: var(--ink-3); flex: 1; }
.badge { font-size: 11px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; padding: 3px 8px; border-radius: 5px; flex: none; }
.badge.live { background: var(--ok-soft); color: var(--ok); }
.badge.seeded { background: var(--accent-soft); color: var(--accent); }
.badge.retrieval { background: var(--warn-soft); color: var(--warn); }
.badge.err { background: var(--crit-soft); color: var(--crit); }

.answer {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--r); padding: 24px 26px; margin-bottom: 30px;
  box-shadow: var(--shadow); font-size: 15.3px;
}
.answer h4 { margin: 22px 0 7px; font-size: 14.5px; color: var(--ink); }
.answer h4:first-child { margin-top: 0; }
.answer p { margin: 0 0 13px; }
.answer p:last-child { margin-bottom: 0; }
.answer strong { font-weight: 650; }
.answer .caveat {
  margin-top: 18px; padding: 12px 15px; font-size: 13.8px;
  background: var(--warn-soft); color: var(--warn);
  border-radius: 8px; border: 1px solid color-mix(in srgb, var(--warn) 22%, transparent);
}
.answer .thinking { color: var(--ink-3); }

.cite {
  font: 600 12px/1 var(--mono);
  padding: 3px 6px; margin: 0 1px; border-radius: 5px; cursor: pointer;
  background: var(--accent-soft); color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 26%, transparent);
  white-space: nowrap;
}
.cite:hover { background: var(--accent); color: #fff; }
.cite.dead { background: var(--crit-soft); color: var(--crit); border-color: color-mix(in srgb, var(--crit) 30%, transparent); cursor: help; }

/* skeleton */
.skel { display: block; height: 11px; border-radius: 4px; margin-bottom: 9px;
  background: linear-gradient(90deg, var(--line-2) 25%, var(--line) 37%, var(--line-2) 63%);
  background-size: 400% 100%; animation: sh 1.3s ease infinite; }
@keyframes sh { 0% { background-position: 100% 0 } 100% { background-position: 0 0 } }

/* ── sources ────────────────────────────────────────────────────────────── */

.sources-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 11px; }
.sources h3 { font-size: 11.5px; text-transform: uppercase; letter-spacing: .07em; color: var(--ink-3); margin: 0; font-weight: 700; }
.sources h3 .muted { text-transform: none; letter-spacing: 0; font-weight: 400; }
.muted { color: var(--ink-3); }
.small { font-size: 12.8px; line-height: 1.55; }

.src { background: var(--panel); border: 1px solid var(--line); border-radius: 9px; margin-bottom: 8px; overflow: hidden; }
.src.flash { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.src > summary { padding: 11px 14px; cursor: pointer; list-style: none; display: flex; gap: 11px; align-items: baseline; flex-wrap: wrap; }
.src > summary::-webkit-details-marker { display: none; }
.src > summary:hover { background: var(--panel-2); }
.src .cite-key { font: 700 12.5px var(--mono); color: var(--accent); flex: none; }
.src .title { font-size: 13.2px; color: var(--ink-2); flex: 1; min-width: 150px; }
.src .rel { font: 600 11px var(--mono); color: var(--ink-3); flex: none; }
.relbar { height: 2px; background: var(--line-2); }
.relbar > i { display: block; height: 100%; background: var(--accent); }
.src .body { padding: 12px 14px; font-size: 13.8px; white-space: pre-wrap; color: var(--ink-2); border-top: 1px solid var(--line-2); background: var(--panel-2); line-height: 1.62; }
.src .body mark { background: var(--mark); color: inherit; padding: 0 1px; border-radius: 2px; }
.src .srcfoot { padding: 0 14px 12px; font-size: 12.5px; background: var(--panel-2); }

/* ── intake ─────────────────────────────────────────────────────────────── */

.intake-form { margin-bottom: 22px; }
textarea {
  width: 100%; font: inherit; font-size: 14px; line-height: 1.6;
  padding: 13px 15px; border: 1px solid var(--line); border-radius: var(--r);
  background: var(--panel); color: var(--ink); resize: vertical; box-shadow: var(--shadow);
}
textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.intake-actions { display: flex; gap: 9px; align-items: center; margin-top: 10px; }

.igrid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.igrid > .full { grid-column: 1 / -1; }

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 17px 19px; box-shadow: var(--shadow); }
.panel > h3 { margin: 0 0 12px; font-size: 11.5px; text-transform: uppercase; letter-spacing: .07em; color: var(--ink-3); font-weight: 700; }

.headline { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.headline .type { font-size: 18px; font-weight: 650; letter-spacing: -0.015em; }
.headline .de { color: var(--ink-3); font-size: 13px; }
.pri { font-size: 11.5px; font-weight: 700; padding: 4px 10px; border-radius: 6px; letter-spacing: .02em; flex: none; }
.pri.p1 { background: var(--crit-soft); color: var(--crit); }
.pri.p2 { background: var(--warn-soft); color: var(--warn); }
.pri.p3 { background: var(--ok-soft); color: var(--ok); }

.kv { display: grid; grid-template-columns: minmax(105px, auto) 1fr; gap: 6px 16px; font-size: 13.8px; margin: 0; }
.kv dt { color: var(--ink-3); }
.kv dd { margin: 0; overflow-wrap: anywhere; }
.kv dd.none { color: var(--ink-3); font-style: italic; }

.deadline { border-left: 3px solid var(--ink-3); padding: 14px 17px; border-radius: 9px; }
.deadline.critical, .deadline.expired { border-color: var(--crit); background: var(--crit-soft); }
.deadline.running { border-color: var(--warn); background: var(--warn-soft); }
.deadline.undated { border-color: var(--ink-3); background: var(--line-2); }
.deadline .big { font-size: 16.5px; font-weight: 650; margin-bottom: 3px; }
.deadline .sub { font-size: 13.3px; opacity: .9; }

.flagbox { background: var(--crit-soft); color: var(--crit); border: 1px solid color-mix(in srgb, var(--crit) 28%, transparent); border-radius: 9px; padding: 13px 16px; font-size: 13.8px; }

ul.docs, ul.obs { margin: 0; padding-left: 19px; font-size: 13.8px; }
ul.docs li, ul.obs li { margin-bottom: 6px; }
ul.docs li:last-child, ul.obs li:last-child { margin-bottom: 0; }

.draft { position: relative; }
.draft pre {
  margin: 0; white-space: pre-wrap; font: 13.3px/1.65 var(--mono);
  background: var(--panel-2); border: 1px solid var(--line-2); border-radius: 8px; padding: 16px;
  color: var(--ink-2);
}
.copy { position: absolute; top: 9px; right: 9px; }
.matchterms { font: 12px var(--mono); color: var(--ink-3); }

/* ── modal ──────────────────────────────────────────────────────────────── */

.modal-back { position: fixed; inset: 0; z-index: 50; background: rgba(15,17,21,.45); display: grid; place-items: center; padding: 20px; }
.modal { background: var(--panel); border: 1px solid var(--line); border-radius: 13px; width: 100%; max-width: 470px; max-height: 88vh; overflow: auto; box-shadow: 0 20px 60px rgba(0,0,0,.28); }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--panel); }
.modal-head h2 { margin: 0; font-size: 16px; }
.modal-body { padding: 18px 20px 22px; }
.modal-body h3 { margin: 0 0 6px; font-size: 13.5px; }
.modal-body hr { border: none; border-top: 1px solid var(--line); margin: 22px 0 18px; }
.modal-body label { display: block; font-size: 12.5px; font-weight: 600; color: var(--ink-2); margin: 14px 0 6px; }
.keyrow { display: flex; gap: 7px; }
.keyrow input { flex: 1; font: 13px var(--mono); padding: 9px 11px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel-2); color: var(--ink); min-width: 0; }
.keyrow input:focus { outline: none; border-color: var(--accent); }
.keystatus { font-size: 12.5px; font-weight: 600; margin: 9px 0; }

/* ── toast ──────────────────────────────────────────────────────────────── */

.toast {
  position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%) translateY(8px);
  z-index: 60; background: var(--ink); color: var(--bg);
  font-size: 13.5px; padding: 10px 18px; border-radius: 8px;
  box-shadow: 0 8px 26px rgba(0,0,0,.25); opacity: 0; transition: opacity .2s, transform .2s;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.legal { max-width: 1180px; margin: 0 auto; padding: 0 22px 30px; font-size: 12.3px; color: var(--ink-3); }

/* ── responsive ─────────────────────────────────────────────────────────── */

@media (max-width: 940px) {
  .shell { grid-template-columns: 1fr; gap: 22px; }
  .side { position: static; flex-direction: row; flex-wrap: wrap; gap: 26px; }
  .side-block { flex: 1; min-width: 200px; }
  .igrid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .topbar { height: auto; padding: 10px 16px; flex-wrap: wrap; gap: 12px; }
  .tabs { order: 3; width: 100%; flex: none; }
  .tabs button { flex: 1; justify-content: center; }
  .topright { margin-left: auto; }
  .whoname { display: none; }
  .shell { padding: 22px 16px 50px; }
  .pagehead h1 { font-size: 21px; }
  .ask { flex-wrap: wrap; }
  .slash { display: none; }
  .legal { padding-inline: 16px; }
}