/* Reading Agent — Derek's demo family look: white, mint panels, one deep green. */

:root {
  --bg: #FFFFFF;
  --panel: #F4F8F6;
  --line: #E3EAE6;
  --line-strong: #CCD8D1;
  --ink: #111827;
  --ink-2: #374151;
  --muted: #6B7280;
  --green: #1D5C45;
  --green-hover: #164A37;
  --on-green: #FFFFFF;
  --green-soft: #E3F0EA;
  --green-mid: #8DBFA8;
  --amber: #B45309;
  --amber-bg: #FEF3C7;
  --red: #B42318;
  --red-bg: #FEE4E2;
  --slate: #475467;
  --slate-bg: #EEF1F4;
  --paper: #FFFFFF;
  --paper-ink: #1F2937;
  --mark: #CBE6D8;
  --mark-claim: #FBE3A6;
  --skim: #DCE6E0;
  --shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 2px 8px rgba(16, 24, 40, .05);
  --radius: 14px;
  --font-ui: "Inter", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --font-serif: "Source Serif 4", "Songti SC", "Noto Serif SC", Georgia, "Times New Roman", serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0D1311;
    --panel: #141C19;
    --line: #24302B;
    --line-strong: #33433C;
    --ink: #E8EEEB;
    --ink-2: #C9D3CE;
    --muted: #97A49E;
    --green: #6BCB9E;
    --green-hover: #86D8B1;
    --on-green: #0B1210;
    --green-soft: #17322A;
    --green-mid: #2F6F55;
    --amber: #F3B862;
    --amber-bg: #3A2A10;
    --red: #F58A7F;
    --red-bg: #3E1A17;
    --slate: #B6C1CB;
    --slate-bg: #232C32;
    --paper: #111917;
    --paper-ink: #DCE4E0;
    --mark: #22513F;
    --mark-claim: #5B4313;
    --skim: #2A3833;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 2px 10px rgba(0, 0, 0, .25);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0D1311;
  --panel: #141C19;
  --line: #24302B;
  --line-strong: #33433C;
  --ink: #E8EEEB;
  --ink-2: #C9D3CE;
  --muted: #97A49E;
  --green: #6BCB9E;
  --green-hover: #86D8B1;
  --on-green: #0B1210;
  --green-soft: #17322A;
  --green-mid: #2F6F55;
  --amber: #F3B862;
  --amber-bg: #3A2A10;
  --red: #F58A7F;
  --red-bg: #3E1A17;
  --slate: #B6C1CB;
  --slate-bg: #232C32;
  --paper: #111917;
  --paper-ink: #DCE4E0;
  --mark: #22513F;
  --mark-claim: #5B4313;
  --skim: #2A3833;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 2px 10px rgba(0, 0, 0, .25);
  color-scheme: dark;
}

/* ---------------------------------------------------------------- base */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
@media (min-width: 1600px) { body { font-size: 17px; } }
a { color: var(--green); }
button { font: inherit; color: inherit; }
h1, h2, h3, h4 { margin: 0; line-height: 1.25; }
p { margin: 0; }
:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; border-radius: 6px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.wrap-wide { max-width: 1720px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 640px) { .wrap, .wrap-wide { padding: 0 16px; } }

.label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}
.mini {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}
.fine { font-size: 13px; color: var(--muted); }
.h2 { font-size: clamp(22px, 2.4vw, 28px); font-weight: 700; letter-spacing: -.01em; margin: 6px 0 20px; }
.h3 { font-size: 15px; font-weight: 700; margin: 26px 0 10px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 14px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  background: var(--bg);
  color: var(--ink);
  font-size: 14px; font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background .15s, border-color .15s;
}
.btn:hover { background: var(--panel); border-color: var(--green-mid); }
.btn-primary { background: var(--green); border-color: var(--green); color: var(--on-green); }
.btn-primary:hover { background: var(--green-hover); border-color: var(--green-hover); }
.link-btn { background: none; border: 0; padding: 0; color: var(--green); font-weight: 600; cursor: pointer; font-size: inherit; }
.link-btn:hover { text-decoration: underline; }
.chip-btn {
  border: 1px solid var(--line-strong); background: var(--bg); border-radius: 999px;
  padding: 3px 10px; font-size: 12.5px; font-weight: 600; cursor: pointer; white-space: nowrap;
}
.chip-btn:hover { border-color: var(--green-mid); }

/* -------------------------------------------------------------- header */

.site-header { border-bottom: 1px solid var(--line); background: var(--bg); }
.hdr {
  max-width: 1720px; margin: 0 auto; padding: 12px 24px;
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
}
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand-d { font-family: var(--font-serif); font-weight: 600; font-size: 38px; line-height: 1; letter-spacing: -.02em; }
.brand-text { display: flex; flex-direction: column; gap: 3px; }
.brand-name { font-size: 14px; font-weight: 600; letter-spacing: .34em; }
.brand-tag { font-size: 8.5px; font-weight: 600; letter-spacing: .16em; color: var(--muted); white-space: nowrap; }
.hdr-sep { width: 1px; height: 30px; background: var(--line-strong); }
.hdr-project { font-weight: 700; font-size: 16px; color: var(--ink); text-decoration: none; white-space: nowrap; }
.pill-demo {
  display: inline-flex; align-items: center;
  padding: 4px 10px; border-radius: 999px;
  background: var(--green-soft); color: var(--green);
  font-size: 12px; font-weight: 600; white-space: nowrap;
}
.hdr-controls { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.seg { display: inline-flex; border: 1px solid var(--line-strong); border-radius: 999px; padding: 2px; background: var(--bg); }
.seg button {
  border: 0; background: none; padding: 4px 11px; border-radius: 999px; cursor: pointer; white-space: nowrap;
  font-size: 13px; font-weight: 600; color: var(--muted);
}
.seg button[aria-pressed="true"] { background: var(--green); color: var(--on-green); }
.icon-btn {
  display: inline-grid; place-items: center; width: 34px; height: 34px;
  border-radius: 999px; border: 1px solid var(--line-strong); background: var(--bg); cursor: pointer; color: var(--ink);
}
.icon-btn:hover { border-color: var(--green-mid); }

@media (max-width: 640px) {
  .hdr { padding: 10px 16px; gap: 8px 10px; }
  .brand { order: 1; }
  .hdr-controls { order: 2; }
  .hdr::after { content: ""; order: 3; flex-basis: 100%; height: 0; }
  .hdr-project { order: 4; }
  .pill-demo { order: 5; font-size: 11px; }
  .hdr-sep { display: none; }
  .brand-d { font-size: 32px; }
  .brand-name { font-size: 12.5px; }
  .brand-tag { font-size: 7.5px; letter-spacing: .12em; }
}

/* ---------------------------------------------------------------- home */

.hero { padding-top: 44px; padding-bottom: 20px; }
.hero-title { font-size: clamp(36px, 5vw, 56px); font-weight: 700; letter-spacing: -.025em; margin: 8px 0 12px; }
.lede { font-size: clamp(17px, 1.6vw, 20px); color: var(--ink-2); max-width: 760px; }
.flow {
  margin: 28px 0 22px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 28px minmax(0, 1.15fr) 28px minmax(0, 1.25fr) 28px minmax(0, .9fr);
  align-items: stretch;
}
.flow-step {
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg);
  padding: 14px 16px; display: flex; flex-direction: column; gap: 4px;
}
.flow-step b { font-size: 16px; }
.flow-step > span:last-child { font-size: 13.5px; color: var(--muted); }
.flow-k {
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--muted);
}
.flow-step.is-agent { background: var(--green-soft); border-color: transparent; }
.flow-step.is-agent .flow-k { color: var(--green); }
.flow-step.is-you { border-style: dashed; border-color: var(--amber); }
.flow-step.is-you .flow-k { color: var(--amber); }
.flow-arrow { position: relative; }
.flow-arrow::after {
  content: ""; position: absolute; left: 50%; top: 50%; width: 9px; height: 9px;
  border-top: 2px solid var(--green-mid); border-right: 2px solid var(--green-mid);
  transform: translate(-70%, -50%) rotate(45deg);
}
.hero-actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.hero-actions .btn { padding: 12px 18px; font-size: 15px; }
.btn-link { color: var(--ink-2); font-weight: 600; font-size: 14px; text-decoration: none; }
.btn-link:hover { color: var(--green); }

@media (max-width: 899px) {
  .flow { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin: 22px 0 18px; }
  .flow-arrow { display: none; }
  .flow-step { padding: 11px 12px; }
  .flow-step b { font-size: 15px; }
  .flow-step > span:last-child { font-size: 12.5px; line-height: 1.45; }
  .hero { padding-top: 26px; }
}

.block { padding-top: 40px; padding-bottom: 8px; }
.doc-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 960px) { .doc-cards { grid-template-columns: 1fr; } }
.doc-card {
  display: flex; gap: 16px; padding: 18px;
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg);
  color: var(--ink); text-decoration: none; box-shadow: var(--shadow);
  transition: border-color .15s, transform .15s;
}
.doc-card:hover { border-color: var(--green-mid); transform: translateY(-1px); }
.doc-card-body { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.kind {
  align-self: flex-start;
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  color: var(--green); background: var(--green-soft); padding: 2px 8px; border-radius: 6px;
}
.doc-card-title { font-weight: 700; font-size: 17px; line-height: 1.3; }
.doc-card-meta { font-size: 13px; color: var(--muted); }
.doc-card-see { font-size: 14px; color: var(--ink-2); }
.doc-card-cta { margin-top: auto; padding-top: 6px; color: var(--green); font-weight: 700; font-size: 14px; }
.doc-card .fine { margin-top: 8px; }
#pick .fine { margin-top: 14px; max-width: 760px; }

.thumb {
  flex: 0 0 64px; height: 84px; border-radius: 6px; border: 1px solid var(--line-strong);
  background: var(--paper); padding: 9px 8px; display: flex; flex-direction: column; gap: 5px;
}
.th-l { height: 3px; border-radius: 2px; background: var(--line-strong); }
.th-l.short { width: 60%; }
.th-l.hl { background: var(--green-mid); }
.th-l.amber { background: var(--amber); opacity: .6; width: 80%; }

.passes { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
@media (max-width: 1100px) { .passes { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .passes { grid-template-columns: 1fr; } }
.passes li { display: flex; gap: 12px; padding: 14px; background: var(--panel); border-radius: var(--radius); }
.pass-n {
  flex: 0 0 26px; height: 26px; border-radius: 999px; display: grid; place-items: center;
  background: var(--green); color: var(--on-green); font-size: 13px; font-weight: 700;
}
.passes h3 { font-size: 15px; margin-bottom: 4px; }
.passes p { font-size: 13.5px; color: var(--muted); }

.rules { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; padding-bottom: 32px; }
@media (max-width: 900px) { .rules { grid-template-columns: 1fr; } }
.rule { border-top: 3px solid var(--green); padding-top: 12px; }
.rule h3 { font-size: 16px; margin-bottom: 6px; }
.rule p { color: var(--ink-2); font-size: 14.5px; }
.rule-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px !important; }

/* --------------------------------------------------------- status chips */

.st {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; line-height: 1.6;
}
.st-dot { width: 7px; height: 7px; border-radius: 999px; background: currentColor; flex: 0 0 auto; }
.st-supported { color: var(--green); background: var(--green-soft); }
.st-partial { color: var(--amber); background: var(--amber-bg); }
.st-unsupported { color: var(--red); background: var(--red-bg); }
.st-opinion { color: var(--slate); background: var(--slate-bg); }

/* ----------------------------------------------------------- workspace */

.ws-top { display: flex; align-items: center; gap: 18px; padding-top: 16px; padding-bottom: 14px; flex-wrap: wrap; }
.back { color: var(--ink-2); text-decoration: none; font-weight: 600; font-size: 14px; white-space: nowrap; }
.back:hover { color: var(--green); }
.ws-title { display: flex; align-items: center; gap: 10px; min-width: 0; flex-wrap: wrap; }
.ws-title h1 { font-size: clamp(18px, 1.8vw, 22px); font-weight: 700; letter-spacing: -.01em; }

.mview { display: none; }

.ws-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 18px;
  padding-bottom: 24px;
}
.pane {
  height: var(--pane-h, calc(100vh - 160px));
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overscroll-behavior: contain;
}
.src-pane { background: var(--panel); position: relative; overflow-anchor: none; }
.out-pane { background: var(--bg); }

.pane-head {
  position: sticky; top: 0; z-index: 3;
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 16px; min-height: 44px;
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.pane-sub { font-size: 12.5px; color: var(--muted); }
.hl-info { font-size: 13px; min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.hl-info b { font-weight: 600; }
.legend { display: inline-flex; align-items: center; gap: 5px; margin-left: 6px; font-size: 12px; color: var(--muted); }
.lg { display: inline-block; width: 10px; height: 10px; border-radius: 3px; }
.lg-claim { background: var(--mark-claim); box-shadow: inset 0 -2px var(--amber); }
.lg-ev { background: var(--mark); box-shadow: inset 0 -2px var(--green); margin-left: 4px; }

/* the source document as a sheet of paper */
.paper {
  max-width: 720px; margin: 18px auto 40px; padding: 30px 36px 40px;
  background: var(--paper); color: var(--paper-ink);
  border: 1px solid var(--line); border-radius: 6px;
  box-shadow: var(--shadow);
  font-family: var(--font-serif);
  font-size: 16.5px; line-height: 1.72;
}
:lang(zh-CN) .paper { line-height: 1.85; }
.paper-head { border-bottom: 1px solid var(--line); padding-bottom: 16px; margin-bottom: 8px; }
.paper-kind { font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.paper-title { font-size: 24px; font-weight: 600; line-height: 1.25; margin: 6px 0 6px; }
.paper-by { font-family: var(--font-ui); font-size: 13px; color: var(--muted); }
.paper-tag {
  display: inline-block; margin-top: 10px; font-family: var(--font-ui); font-size: 11.5px; font-weight: 600;
  color: var(--amber); background: var(--amber-bg); padding: 2px 8px; border-radius: 6px;
}
.sec-h {
  font-family: var(--font-ui); font-size: 15px; font-weight: 700; color: var(--ink);
  margin: 26px 0 6px; padding: 4px 8px; margin-left: -8px; border-radius: 6px;
  display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap;
  transition: background .3s;
}
.sec-loc { font-family: var(--font-mono); font-size: 10.5px; font-weight: 600; letter-spacing: .06em; color: var(--muted); order: 2; }
.sec-h.scan, .sec-h.is-hl { background: var(--green-soft); }

.blk {
  position: relative; margin: 6px 0 6px -14px; padding: 6px 14px; border-radius: 6px;
  transition: background .25s, box-shadow .25s, opacity .25s;
  scroll-margin: 80px;
}
.blk p { margin: 0; }
.loc {
  display: block; font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .06em; color: var(--muted);
  margin-bottom: 2px; user-select: none;
}
.paper.is-running .blk { opacity: .45; }
.paper.is-running .blk.is-read { opacity: 1; }
.paper.is-running .blk.is-reading { opacity: 1; background: var(--green-soft); box-shadow: inset 3px 0 var(--green); }

.blk.hl-cite, .blk.hl-evidence { background: var(--green-soft); box-shadow: inset 3px 0 var(--green); }
.blk.hl-claim { background: var(--amber-bg); box-shadow: inset 3px 0 var(--amber); }
.blk.hl-sec { box-shadow: inset 3px 0 var(--green-mid); }
mark.mk, .t-term.mk { color: inherit; border-radius: 3px; padding: 1px 1px; }
.mk-cite, .mk-evidence, .mk-term { background: var(--mark); box-shadow: inset 0 -2px var(--green); }
.mk-claim { background: var(--mark-claim); box-shadow: inset 0 -2px var(--amber); }

.t-term {
  text-decoration: underline dotted var(--green);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
  cursor: help;
  border-radius: 3px;
}
.paper.anim-terms .t-term { animation: term-in .6s ease both; }
.t-term:hover { background: var(--green-soft); }
@keyframes term-in { from { text-decoration-color: transparent; } }

.claim-tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 2px 0 4px; }
.claim-tag {
  display: inline-flex; align-items: center; gap: 6px; border: 0; cursor: pointer;
  font-family: var(--font-ui); font-size: 11.5px; font-weight: 600; line-height: 1.6;
  padding: 1px 9px; border-radius: 999px;
}
.paper.anim-tags .claim-tag { animation: tag-in .4s ease both; animation-delay: calc(var(--i, 0) * 90ms); }
.claim-tag:hover { filter: brightness(.97); text-decoration: underline; }
@keyframes tag-in { from { opacity: 0; transform: translateY(3px); } }

.blk-table figure { margin: 6px 0; }
.blk-table figcaption { font-family: var(--font-ui); font-size: 13px; font-weight: 700; margin-bottom: 6px; }
.tbl-wrap { overflow-x: auto; }
.blk-table table { width: 100%; border-collapse: collapse; font-family: var(--font-ui); font-size: 14px; line-height: 1.4; }
.blk-table th { text-align: left; font-size: 11.5px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; border-bottom: 1px solid var(--line-strong); padding: 6px 8px; }
.blk-table td { padding: 6px 8px; border-bottom: 1px solid var(--line); }
.blk-table .num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.blk-table tr.hl-cite td, .blk-table tr.hl-evidence td { background: var(--mark); }
.blk-table tr.hl-cite td:first-child, .blk-table tr.hl-evidence td:first-child { box-shadow: inset 3px 0 var(--green); }
.blk-table tr.hl-claim td { background: var(--mark-claim); }

/* ---------------------------------------------------------- output pane */

.out-top { padding: 14px 18px 4px; display: flex; flex-direction: column; gap: 10px; }
.done-line { font-size: 13px; color: var(--muted); }
.done-line .ok { color: var(--green); font-weight: 700; }
.done-line .link-btn { margin-left: 8px; white-space: nowrap; }
.your-turn {
  align-self: flex-start; display: inline-flex; align-items: center; gap: 8px;
  border: 1px dashed var(--amber); background: var(--amber-bg); color: var(--ink);
  border-radius: 10px; padding: 7px 12px; font-size: 13.5px; font-weight: 600; cursor: pointer; text-align: left;
}
.yt-k {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; font-weight: 600;
  color: var(--amber);
}

.tabs {
  position: sticky; top: 0; z-index: 2;
  display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none;
  padding: 0 12px; background: var(--bg); border-bottom: 1px solid var(--line);
}
.tabs::-webkit-scrollbar { display: none; }
.tab {
  flex: 0 0 auto; border: 0; background: none; cursor: pointer;
  padding: 12px 10px 10px; font-size: 14px; font-weight: 600; color: var(--muted);
  border-bottom: 2px solid transparent; white-space: nowrap;
}
.tab:hover { color: var(--ink); }
.tab[aria-selected="true"] { color: var(--green); border-bottom-color: var(--green); }
.tab-badge {
  display: inline-block; min-width: 20px; padding: 0 6px; border-radius: 999px; background: var(--panel);
  font-size: 11.5px; color: var(--muted); text-align: center; line-height: 18px;
}
.tab[aria-selected="true"] .tab-badge { background: var(--green-soft); color: var(--green); }

.tab-body { padding: 18px 18px 40px; }
.tab-intro { margin-bottom: 14px; }
.tab-intro h2 { font-size: 20px; font-weight: 700; margin-bottom: 4px; }
.tab-intro p { color: var(--muted); font-size: 14.5px; }

.card {
  border: 1px solid var(--line); border-radius: 12px; background: var(--bg);
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.card[data-act] { cursor: pointer; }
.card[data-act]:hover { border-color: var(--green-mid); }
.card.is-active { border-color: var(--green); box-shadow: 0 0 0 3px var(--green-soft); }

.cites { display: inline-flex; flex-wrap: wrap; gap: 6px; vertical-align: middle; }
.cite {
  border: 1px solid var(--green-mid); background: var(--green-soft); color: var(--green);
  font-family: var(--font-mono); font-size: 11.5px; font-weight: 600;
  padding: 1px 8px; border-radius: 6px; cursor: pointer; white-space: nowrap; line-height: 1.6;
}
.cite:hover { background: var(--green); color: var(--on-green); }

.ideas { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.idea { display: flex; gap: 12px; padding: 14px 16px; }
.idea-n {
  flex: 0 0 26px; height: 26px; border-radius: 999px; display: grid; place-items: center;
  background: var(--panel); color: var(--green); font-weight: 700; font-size: 13px;
}
.idea.is-active .idea-n { background: var(--green); color: var(--on-green); }
.idea h3 { font-size: 16px; margin-bottom: 4px; }
.idea p { color: var(--ink-2); font-size: 14.5px; margin-bottom: 8px; }

/* map */
.mapbar { display: flex; gap: 3px; height: 46px; margin: 4px 0 8px; }
.mapbar-seg {
  min-width: 0; border: 0; border-radius: 6px; cursor: pointer; padding: 0 6px;
  font-size: 11px; font-weight: 600; text-align: left; overflow: hidden;
}
.mapbar-seg span { display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mapbar-seg.is-active { outline: 2px solid var(--ink); outline-offset: 1px; }
.pri-must { background: var(--green); color: var(--on-green); }
.pri-read { background: var(--green-mid); color: var(--ink); }
.pri-skim { background: var(--skim); color: var(--muted); }
:root[data-theme="dark"] .pri-read { color: var(--ink); }
.map-legend { display: flex; gap: 14px; font-size: 12.5px; color: var(--muted); flex-wrap: wrap; }
.map-legend span { display: inline-flex; align-items: center; gap: 6px; }
.sw { display: inline-block; width: 12px; height: 12px; border-radius: 3px; }
.path { margin: 0; padding: 0; list-style: none; counter-reset: p; display: flex; flex-direction: column; gap: 6px; }
.path-item {
  width: 100%; display: flex; align-items: center; gap: 12px; text-align: left; cursor: pointer;
  border: 1px solid var(--line); background: var(--bg); border-radius: 10px; padding: 9px 12px; font-size: 14.5px;
}
.path-item:hover, .path-item.is-active { border-color: var(--green); background: var(--green-soft); }
.path-loc { font-family: var(--font-mono); font-size: 12px; font-weight: 600; color: var(--green); min-width: 52px; }
.path-item .go { margin-left: auto; color: var(--green); }
.sec-rows { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.sec-row {
  width: 100%; display: flex; gap: 12px; align-items: flex-start; text-align: left; cursor: pointer;
  border: 1px solid var(--line); background: var(--bg); border-radius: 10px; padding: 10px 12px;
}
.sec-row:hover, .sec-row.is-active { border-color: var(--green-mid); background: var(--panel); }
.sec-row .pri { flex: 0 0 auto; font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 6px; margin-top: 2px; white-space: nowrap; }
.sec-main { display: flex; flex-direction: column; gap: 1px; min-width: 0; font-size: 14.5px; }
.sec-t { display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 8px; }
.sec-pg { font-family: var(--font-mono); font-size: 11.5px; color: var(--muted); font-weight: 500; }
.sec-role { font-size: 13px; color: var(--green); font-weight: 600; }
.sec-gist { font-size: 13.5px; color: var(--ink-2); }

/* jargon */
.terms { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 10px; }
.term-card { padding: 14px 16px; }
.term-card h3 { font-size: 16px; margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 8px; }
.term-alt { font-size: 12.5px; font-weight: 500; color: var(--muted); }
.term-card dl { margin: 0; }
.term-card dt { font-family: var(--font-mono); font-size: 10.5px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-top: 6px; }
.term-card dd { margin: 2px 0 0; font-size: 14px; color: var(--ink-2); }
.term-card dd:first-of-type { color: var(--ink); font-size: 14.5px; }

/* claims */
.claim-sum { display: flex; flex-wrap: wrap; gap: 8px 14px; margin-bottom: 10px; }
.sum-item { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; }
.review-line { font-size: 13.5px; color: var(--ink-2); margin-bottom: 14px; padding: 8px 12px; border: 1px dashed var(--amber); border-radius: 10px; background: var(--amber-bg); }
.claims { display: flex; flex-direction: column; gap: 10px; }
.claim-card { padding: 14px 16px; border-left-width: 4px; }
.claim-card.st-border-supported { border-left-color: var(--green); }
.claim-card.st-border-partial { border-left-color: var(--amber); }
.claim-card.st-border-unsupported { border-left-color: var(--red); }
.claim-card.st-border-opinion { border-left-color: var(--slate); }
.claim-head { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; margin-bottom: 8px; }
.claim-src { font-size: 12.5px; color: var(--muted); }
.claim-text { font-size: 16px; font-weight: 600; display: flex; gap: 10px; margin-bottom: 8px; }
.claim-n { flex: 0 0 auto; font-family: var(--font-mono); font-size: 12px; color: var(--muted); padding-top: 3px; }
.claim-ev { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 8px; margin-bottom: 8px; }
.claim-ev .none { font-size: 13.5px; color: var(--red); }
.claim-note { font-size: 14px; color: var(--ink-2); margin-bottom: 10px; }
.claim-note .mini { display: block; margin-bottom: 2px; }
.decide { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding-top: 10px; border-top: 1px solid var(--line); }
.dec {
  border: 1px solid var(--line-strong); background: var(--bg); border-radius: 999px; cursor: pointer;
  padding: 4px 12px; font-size: 13px; font-weight: 600;
}
.dec:hover { border-color: var(--green-mid); }
.dec-accept[aria-pressed="true"] { background: var(--green); border-color: var(--green); color: var(--on-green); }
.dec-follow[aria-pressed="true"] { background: var(--amber); border-color: var(--amber); color: var(--bg); }

/* ask */
.qa-form { display: flex; gap: 8px; }
.qa-form input {
  flex: 1; min-width: 0; padding: 10px 12px; font: inherit; font-size: 15px;
  border: 1px solid var(--line-strong); border-radius: 10px; background: var(--bg); color: var(--ink);
}
.qa-form input:focus { outline: 2px solid var(--green); outline-offset: 0; border-color: transparent; }
.tries { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: 10px 0 4px; }
.try {
  border: 1px solid var(--line); background: var(--panel); border-radius: 999px; cursor: pointer;
  padding: 4px 11px; font-size: 13px; text-align: left;
}
.try:hover { border-color: var(--green-mid); color: var(--green); }
.qa-log { display: flex; flex-direction: column; gap: 12px; margin-top: 14px; }
.qa-item { display: flex; flex-direction: column; gap: 6px; animation: tag-in .3s ease both; }
.qa-q { align-self: flex-end; max-width: 90%; background: var(--panel); border-radius: 12px 12px 2px 12px; padding: 8px 12px; font-size: 14.5px; }
.qa-a { border: 1px solid var(--line); border-radius: 12px 12px 12px 2px; padding: 10px 14px; font-size: 14.5px; display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.qa-a.is-pending { color: var(--muted); flex-direction: row; align-items: center; }
.qa-notfound { border-color: var(--line-strong); background: var(--panel); }
.qa-st { font-family: var(--font-mono); font-size: 10.5px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; padding: 1px 8px; border-radius: 6px; }
.qa-st-answered { color: var(--green); background: var(--green-soft); }
.qa-st-partial { color: var(--amber); background: var(--amber-bg); }
.qa-st-notfound { color: var(--slate); background: var(--slate-bg); }
.dots { display: inline-flex; gap: 3px; }
.dots i { width: 5px; height: 5px; border-radius: 99px; background: var(--green); animation: blink 1s infinite; }
.dots i:nth-child(2) { animation-delay: .15s; }
.dots i:nth-child(3) { animation-delay: .3s; }
@keyframes blink { 50% { opacity: .2; } }
.next-qs { margin: 0; padding-left: 20px; display: flex; flex-direction: column; gap: 10px; }
.next-qs li::marker { color: var(--green); font-weight: 700; }
.nq { font-weight: 600; font-size: 14.5px; }
.nmeta { font-size: 13px; color: var(--muted); }
.who { font-family: var(--font-mono); font-size: 11px; font-weight: 600; color: var(--green); background: var(--green-soft); padding: 1px 7px; border-radius: 5px; margin-right: 4px; white-space: nowrap; }
.follow-list { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 8px; font-size: 14px; }

/* brief */
.brief-tools { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.brief {
  border: 1px solid var(--line); border-radius: 10px; background: var(--paper); color: var(--paper-ink);
  padding: 26px 28px; box-shadow: var(--shadow); font-size: 14.5px;
}
.brief-head { border-bottom: 2px solid var(--green); padding-bottom: 12px; margin-bottom: 12px; }
.brief-head h2 { font-size: 21px; margin: 4px 0 4px; }
.brief-by { font-size: 12.5px; color: var(--muted); }
.brief section { padding: 10px 0; border-bottom: 1px solid var(--line); }
.brief h3 { font-family: var(--font-mono); font-size: 11px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--green); margin-bottom: 6px; }
.brief-line { font-size: 16px; font-weight: 600; }
.brief ul, .brief ol { margin: 0; padding-left: 18px; display: flex; flex-direction: column; gap: 5px; }
.brief-claims { list-style: none; padding-left: 0 !important; }
.brief-claims li { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; }
.your-call { font-size: 11.5px; font-weight: 700; padding: 1px 7px; border-radius: 5px; }
.yc-accept { color: var(--green); background: var(--green-soft); }
.yc-follow { color: var(--amber); background: var(--amber-bg); }
.brief-keep { background: var(--panel); margin: 12px -12px 0; padding: 12px !important; border-radius: 8px; border-bottom: 0 !important; }
.keep-foot { margin-top: 8px; font-size: 13px; color: var(--ink-2); font-style: italic; }
.brief-foot { padding-top: 12px; font-size: 12px; color: var(--muted); }

/* run panel */
.run { padding: 18px 20px 28px; }
.run-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
.run-bar { height: 4px; background: var(--panel); border-radius: 99px; overflow: hidden; margin-bottom: 18px; }
.run-bar span { display: block; height: 100%; background: var(--green); transition: width .5s ease; }
.steps { list-style: none; margin: 0 0 16px; padding: 0; display: flex; flex-direction: column; }
.step { display: flex; gap: 14px; position: relative; padding-bottom: 18px; }
.step:not(:last-child)::before { content: ""; position: absolute; left: 13px; top: 30px; bottom: 2px; width: 2px; background: var(--line); }
.step.is-done:not(:last-child)::before { background: var(--green-mid); }
.step-dot {
  flex: 0 0 28px; height: 28px; border-radius: 999px; display: grid; place-items: center;
  font-size: 13px; font-weight: 700; border: 2px solid var(--line-strong); color: var(--muted); background: var(--bg); position: relative; z-index: 1;
}
.step.is-done .step-dot { background: var(--green); border-color: var(--green); color: var(--on-green); }
.step.is-active .step-dot { border-color: var(--green); color: var(--green); }
.spin { width: 14px; height: 14px; border-radius: 999px; border: 2px solid var(--green-soft); border-top-color: var(--green); animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.step-body { min-width: 0; padding-top: 3px; }
.step-body h3 { font-size: 15.5px; }
.step.is-pending h3 { color: var(--muted); font-weight: 600; }
.step-d { font-size: 13px; color: var(--muted); margin-top: 1px; }
.log { font-size: 14px; color: var(--ink-2); margin-top: 6px; animation: tag-in .35s ease both; }
.log::before { content: "→ "; color: var(--green); font-weight: 700; }
.log.live { font-family: var(--font-mono); font-size: 12.5px; color: var(--green); }
.log-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.chip { font-size: 12.5px; padding: 2px 9px; border-radius: 999px; background: var(--panel); border: 1px solid var(--line); animation: tag-in .3s ease both; }
.chip i { font-style: normal; color: var(--muted); font-family: var(--font-mono); font-size: 10.5px; }
.chip-term { text-decoration: underline dotted var(--green); text-underline-offset: 3px; }

/* popover, toast, mobile back */
.popover {
  position: fixed; z-index: 50; background: var(--bg); color: var(--ink);
  border: 1px solid var(--line-strong); border-radius: 12px; padding: 12px 14px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, .16); font-size: 14px;
}
.popover h4 { font-size: 16px; margin: 2px 0 4px; }
.popover p { color: var(--ink-2); }
.popover .pop-k { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--green); }
.popover .link-btn { margin-top: 8px; font-size: 13px; }
.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); z-index: 60;
  background: var(--ink); color: var(--bg); padding: 8px 16px; border-radius: 999px; font-size: 14px; font-weight: 600;
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.back-out {
  position: fixed; left: 50%; bottom: 18px; transform: translateX(-50%); z-index: 40;
  border: 0; background: var(--green); color: var(--on-green); border-radius: 999px; padding: 11px 18px;
  font-weight: 700; font-size: 14px; box-shadow: 0 6px 20px rgba(0, 0, 0, .2); cursor: pointer; white-space: nowrap;
}
.back-out[hidden] { display: none; }

/* ------------------------------------------------------ mobile workspace */

@media (max-width: 899px) {
  .ws-top { padding-top: 12px; padding-bottom: 10px; gap: 8px; }
  .ws-title h1 { font-size: 18px; }
  .mview {
    display: flex; position: sticky; top: 0; z-index: 20; gap: 4px;
    padding: 8px 16px; background: color-mix(in srgb, var(--bg) 94%, transparent); backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--line);
  }
  .mview button {
    flex: 1; border: 1px solid var(--line-strong); background: var(--bg); border-radius: 10px; padding: 8px 6px;
    font-size: 14px; font-weight: 600; cursor: pointer; color: var(--muted);
  }
  .mview button[aria-selected="true"] { background: var(--green); border-color: var(--green); color: var(--on-green); }
  .ws-grid { grid-template-columns: minmax(0, 1fr); padding-top: 12px; padding-bottom: 80px; }
  .pane { height: auto; overflow: visible; border: 0; border-radius: 0; }
  .ws.show-out .src-pane { display: none; }
  .ws.show-src .out-pane { display: none; }
  .src-pane { background: transparent; }
  .pane-head { top: 57px; border: 1px solid var(--line); border-radius: 10px; background: color-mix(in srgb, var(--panel) 95%, transparent); }
  .paper { margin: 12px 0 24px; padding: 20px 18px 28px; font-size: 16px; }
  .blk { margin-left: -10px; margin-right: -10px; padding: 6px 10px; }
  .sec-h { margin-left: -6px; }
  .out-top { padding: 0 0 4px; }
  .tabs { top: 57px; padding: 0; margin: 0 -16px; padding: 0 12px; }
  .tab { padding: 11px 8px 9px; font-size: 13.5px; }
  .tab-body { padding: 16px 0 24px; }
  .run { padding: 4px 0 16px; }
  .brief { padding: 18px 16px; }
  .brief-keep { margin: 12px -8px 0; }
  .terms { grid-template-columns: 1fr; }
}
@media (max-width: 420px) {
  .mapbar-seg span { display: none; }
  .qa-form .btn { padding: 9px 12px; }
}

/* --------------------------------------------------------------- footer */

.site-footer { border-top: 1px solid var(--line); background: var(--panel); margin-top: 24px; }
.foot { padding-top: 26px; padding-bottom: 30px; display: flex; flex-direction: column; gap: 14px; }
.foot-brand { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.foot-brand .brand-d { font-size: 30px; }
.foot-title { font-weight: 700; }
.foot-links { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 14px; }
.foot-links a { color: var(--ink-2); text-decoration: none; font-weight: 500; }
.foot-links a:hover { color: var(--green); text-decoration: underline; }
.foot-note { font-size: 13px; color: var(--muted); max-width: 820px; }

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

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

@media print {
  :root, :root[data-theme="dark"] {
    --bg: #fff; --paper: #fff; --paper-ink: #111; --ink: #111; --ink-2: #333; --muted: #555;
    --green: #1D5C45; --green-soft: #E3F0EA; --panel: #F4F8F6; --line: #ddd; --amber: #B45309; --amber-bg: #FEF3C7;
    --red: #B42318; --red-bg: #FEE4E2; --slate: #475467; --slate-bg: #EEF1F4; --on-green: #fff; --green-mid: #8DBFA8;
  }
  body { background: #fff; }
  body * { visibility: hidden; }
  #brief, #brief * { visibility: visible; }
  #brief { position: absolute; left: 0; top: 0; width: 100%; border: 0; box-shadow: none; padding: 0; }
  #brief .cite { border: 0; background: none; padding: 0; color: #1D5C45; }
  .pane { height: auto !important; overflow: visible !important; }
}