/* WarmHub answer exchange: a dashboard layout after the Cloudflare
   dashboard (sidebar, page headers, tabs, cards, tables), with the type and
   color of the Jev playground (monospace eyebrows, slate ink, blue accent). */

:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --panel-2: #fafbfc;
  --ink: #19232e;
  --ink-2: #3a4654;
  --muted: #606b78;
  --faint: #8a94a1;
  --line: #e3e7ec;
  --line-strong: #cfd6df;
  --accent: #2459cf;
  --accent-hover: #1d4bb0;
  --accent-soft: #edf2fd;
  --accent-ink: #ffffff;
  --link: #204fab;
  --brand: #e8590c;
  --ok: #17784b;
  --ok-soft: #e7f5ed;
  --warn: #965400;
  --warn-soft: #fdf3e2;
  --bad: #c0331f;
  --bad-soft: #fdecea;
  --neutral-soft: #eef1f4;
  --code: #f3f5f8;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.05);
  --shadow-lg: 0 12px 32px rgba(16, 24, 40, 0.16);
  --radius: 8px;
  --radius-sm: 5px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sidebar: 248px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1116;
    --panel: #161a21;
    --panel-2: #1b2029;
    --ink: #e6e9ee;
    --ink-2: #c4cad3;
    --muted: #98a2b0;
    --faint: #6f7987;
    --line: #262c36;
    --line-strong: #353d49;
    --accent: #6d9bff;
    --accent-hover: #8db1ff;
    --accent-soft: #1b2740;
    --accent-ink: #0e1116;
    --link: #8db1ff;
    --brand: #ff7a33;
    --ok: #4cc38a;
    --ok-soft: #12291f;
    --warn: #f0b34a;
    --warn-soft: #2d230f;
    --bad: #ff7b6b;
    --bad-soft: #2f1613;
    --neutral-soft: #222833;
    --code: #1e232c;
    --shadow: none;
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font: 14px/1.5 var(--font);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
code, .mono { font-family: var(--mono); font-size: 0.9em; }
h1, h2, h3 { margin: 0; color: var(--ink); }
svg { stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* ------------------------------------------------------------ layout */

.app { display: grid; grid-template-columns: var(--sidebar) minmax(0, 1fr); min-height: 100vh; }

.sidebar {
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
  display: flex; flex-direction: column; gap: 14px;
  padding: 16px 12px; background: var(--panel); border-right: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; padding: 4px 8px; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand-mark { color: var(--brand); display: grid; place-items: center; }
.brand-mark svg { stroke: none; }
.brand-text { display: grid; line-height: 1.15; }
.brand-name { font-weight: 700; letter-spacing: -0.2px; }
.brand-sub { font-size: 12px; color: var(--muted); }
.tag {
  margin-left: auto; font: 500 10px/1 var(--mono); letter-spacing: 0.8px; text-transform: uppercase;
  color: var(--muted); border: 1px solid var(--line-strong); border-radius: 999px; padding: 4px 7px;
}

.account { margin: 0 4px; padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel-2); }
.account-name { font-weight: 600; margin-top: 2px; }
.account-balance { display: flex; justify-content: space-between; align-items: baseline; margin-top: 6px; color: var(--muted); font-size: 13px; }
.account-balance strong { color: var(--ink); font-family: var(--mono); font-size: 14px; }

.nav { display: grid; gap: 1px; }
.nav-group { margin: 12px 10px 4px; font: 500 11px/1 var(--mono); letter-spacing: 1.2px; text-transform: uppercase; color: var(--faint); }
.nav a {
  display: flex; align-items: center; gap: 10px; padding: 7px 10px; border-radius: 6px;
  color: var(--ink-2); font-weight: 500;
}
.nav a svg { width: 17px; height: 17px; flex: none; color: var(--muted); }
.nav a:hover { background: var(--neutral-soft); text-decoration: none; }
.nav a[aria-current="page"] { background: var(--accent-soft); color: var(--accent); }
.nav a[aria-current="page"] svg { color: var(--accent); }
.nav-sub { display: grid; gap: 1px; margin: 1px 0 4px 27px; }
.nav-sub a { padding: 5px 10px; font-weight: 400; font-size: 12.5px; font-family: var(--mono); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; }
.sidebar-foot { margin-top: auto; padding: 10px; color: var(--faint); font-size: 12px; border-top: 1px solid var(--line); }

.main { min-width: 0; display: flex; flex-direction: column; }
.topbar {
  position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 12px;
  height: 52px; padding: 0 28px; background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(6px); border-bottom: 1px solid var(--line);
}
.crumbs { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; min-width: 0; }
.crumbs a { color: var(--muted); }
.crumbs .sep { color: var(--faint); }
.crumbs .current { color: var(--ink); font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.icon-button.menu { display: none; }
.page { width: 100%; max-width: 1120px; margin: 0 auto; padding: 28px 28px 64px; }
.scrim { position: fixed; inset: 0; background: rgba(10, 14, 20, 0.4); z-index: 19; }

/* ----------------------------------------------------- page headers */

.eyebrow { font: 500 11.5px/1.2 var(--mono); letter-spacing: 1.2px; text-transform: uppercase; color: var(--muted); }
.eyebrow.accent { color: var(--accent); }
.page-header { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 20px; }
.page-header h1 { font-size: 28px; line-height: 1.15; font-weight: 650; letter-spacing: -0.8px; margin-top: 6px; }
.page-header p { margin: 6px 0 0; color: var(--muted); max-width: 680px; }
.page-header .meta { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-top: 10px; color: var(--muted); font-size: 13px; }

.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--line); margin: 0 0 20px; overflow-x: auto; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tabs a {
  padding: 9px 12px; color: var(--muted); font-weight: 500; border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap;
}
.tabs a:hover { color: var(--ink); text-decoration: none; }
.tabs a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }

.section-title { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin: 28px 0 10px; }
.section-title h2 { font-size: 15px; font-weight: 600; }

/* ------------------------------------------------------------- cards */

.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.card + .card { margin-top: 12px; }
.card-body { padding: 16px 18px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 18px; border-bottom: 1px solid var(--line); }
.card-head h2, .card-head h3 { font-size: 14px; font-weight: 600; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.grid-2 > .card + .card { margin-top: 0; }

/* ----------------------------------------------------------- buttons */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font: 500 14px/1 var(--font); padding: 9px 14px; border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong); background: var(--panel); color: var(--ink); cursor: pointer;
}
.btn:hover { background: var(--neutral-soft); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-ghost { border-color: transparent; background: transparent; color: var(--muted); }
.btn-ghost:hover { color: var(--ink); background: var(--neutral-soft); }
.btn-sm { font-size: 13px; padding: 6px 10px; }
.icon-button { display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 6px; border: 0; background: transparent; color: var(--muted); cursor: pointer; }
.icon-button:hover { background: var(--neutral-soft); color: var(--ink); }

/* ------------------------------------------------------------ inputs */

label.field { display: grid; gap: 5px; font-size: 12.5px; color: var(--muted); font-weight: 500; }
select, input[type="number"], textarea {
  font: inherit; color: var(--ink); background: var(--panel);
  border: 1px solid var(--line-strong); border-radius: var(--radius-sm); padding: 7px 9px;
}
select:focus, input:focus, textarea:focus { outline: 2px solid color-mix(in srgb, var(--accent) 35%, transparent); outline-offset: 0; border-color: var(--accent); }
textarea { width: 100%; resize: vertical; }

.composer textarea { font-size: 16px; line-height: 1.45; padding: 12px 14px; min-height: 76px; border-radius: var(--radius); }
.composer-row { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 12px; margin-top: 12px; }
.composer-controls { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 10px; }
.price-input { display: flex; align-items: center; gap: 4px; }
.price-input input { width: 92px; }
.word-count { font: 12px var(--mono); color: var(--muted); }
.word-count.over { color: var(--bad); font-weight: 600; }
.hint-line { margin-top: 8px; color: var(--muted); font-size: 12.5px; }
.examples { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--line); }
.examples .eyebrow { width: 100%; margin-bottom: 2px; }
.example {
  font: 13px var(--font); color: var(--ink-2); background: var(--panel-2); cursor: pointer;
  border: 1px solid var(--line); border-radius: 999px; padding: 5px 11px;
}
.example { text-align: left; }
.example:hover { border-color: var(--accent); color: var(--accent); }

/* ---------------------------------------------------- pills and chips */

.pill {
  display: inline-flex; align-items: center; gap: 5px; font: 600 12px/1 var(--font);
  padding: 4px 8px; border-radius: 999px; background: var(--neutral-soft); color: var(--ink-2); white-space: nowrap;
}
.pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: 0.8; }
.pill.ok { background: var(--ok-soft); color: var(--ok); }
.pill.warn { background: var(--warn-soft); color: var(--warn); }
.pill.bad { background: var(--bad-soft); color: var(--bad); }
.pill.info { background: var(--accent-soft); color: var(--accent); }
.chip {
  display: inline-flex; align-items: center; gap: 4px; font-size: 12.5px; color: var(--ink-2);
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 6px; padding: 3px 8px;
}
.chip .k { color: var(--muted); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.type-tag { font: 500 10.5px/1 var(--mono); letter-spacing: 0.8px; text-transform: uppercase; color: var(--muted); border: 1px solid var(--line-strong); border-radius: 4px; padding: 3px 5px; }

/* ------------------------------------------------------------ tables */

table.table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.table th {
  text-align: left; font: 500 11.5px/1.2 var(--mono); letter-spacing: 0.8px; text-transform: uppercase; color: var(--muted);
  padding: 10px 14px; border-bottom: 1px solid var(--line); background: var(--panel-2); white-space: nowrap;
}
.table td { padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.table tr:last-child td { border-bottom: 0; }
.table tr.clickable { cursor: pointer; }
.table tr.clickable:hover td { background: var(--panel-2); }
.table .num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.table .detail-row td { background: var(--panel-2); }
.table-wrap { overflow-x: auto; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }

/* --------------------------------------------- key-value and stats */

.kv { display: grid; grid-template-columns: minmax(140px, 220px) minmax(0, 1fr); gap: 0; font-size: 13.5px; }
.kv > div { padding: 7px 0; border-bottom: 1px solid var(--line); overflow-wrap: anywhere; }
.kv > div:nth-last-child(-n + 2) { border-bottom: 0; }
.kv .k { color: var(--muted); padding-right: 16px; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.stat { padding: 14px 16px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
.stat .k { font: 500 11px/1.2 var(--mono); letter-spacing: 1px; text-transform: uppercase; color: var(--muted); }
.stat .v { font-size: 22px; font-weight: 650; letter-spacing: -0.4px; margin-top: 6px; font-variant-numeric: tabular-nums; }
.stat .s { font-size: 12px; color: var(--muted); margin-top: 2px; }

.bars { display: grid; gap: 8px; }
.bar-row { display: grid; grid-template-columns: 170px minmax(0, 1fr) 48px; align-items: center; gap: 10px; font-size: 13px; }
.bar { height: 8px; border-radius: 4px; background: var(--neutral-soft); overflow: hidden; }
.bar > span { display: block; height: 100%; border-radius: 4px; background: var(--accent); }

/* ---------------------------------------------------------- callouts */

.callout { display: grid; gap: 4px; padding: 10px 12px; border-radius: var(--radius-sm); background: var(--neutral-soft); color: var(--ink-2); font-size: 13.5px; }
.callout.warn { background: var(--warn-soft); }
.callout.bad { background: var(--bad-soft); }
.callout.info { background: var(--accent-soft); }
.callout ul { margin: 4px 0 0; padding-left: 18px; }

/* ----------------------------------------------------------- answers */

.result { margin-top: 22px; }
.result-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 8px; }
.result-head h3 { font-size: 16px; font-weight: 600; letter-spacing: -0.2px; }
.result-meta { color: var(--muted); font-size: 12.5px; white-space: nowrap; }
.response-head { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; padding: 12px 18px; border-bottom: 1px solid var(--line); }
.response-head .hub { font-family: var(--mono); font-size: 12.5px; }
.response-head .intent { font-family: var(--mono); font-size: 12.5px; color: var(--muted); }
.response-head .price { margin-left: auto; color: var(--muted); font-size: 13px; }
.response-head .price strong { color: var(--ink); font-family: var(--mono); }
.response-body { padding: 16px 18px; display: grid; gap: 14px; }
.thing-title { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.thing-title .name { font-size: 18px; font-weight: 650; letter-spacing: -0.3px; }
.headline { font-size: 26px; font-weight: 650; letter-spacing: -0.6px; }
.subline { color: var(--muted); }
.response-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; padding: 10px 18px; border-top: 1px solid var(--line); background: var(--panel-2); border-radius: 0 0 var(--radius) var(--radius); }
.response-foot .spacer { flex: 1; }

details.disclosure { border-top: 1px solid var(--line); }
details.disclosure > summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; gap: 8px;
  padding: 10px 18px; color: var(--ink-2); font-weight: 500; font-size: 13px;
}
details.disclosure > summary::-webkit-details-marker { display: none; }
details.disclosure > summary::before { content: "›"; display: inline-block; width: 10px; color: var(--muted); transition: transform 0.15s; }
details.disclosure[open] > summary::before { transform: rotate(90deg); }
details.disclosure > summary .muted { font-weight: 400; }
details.disclosure > .disclosure-body { padding: 0 18px 16px; display: grid; gap: 14px; }

.timeline { display: flex; height: 10px; border-radius: 5px; overflow: hidden; background: var(--neutral-soft); }
.timeline span { display: block; height: 100%; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 12.5px; color: var(--muted); }
.legend i { display: inline-block; width: 9px; height: 9px; border-radius: 2px; margin-right: 5px; vertical-align: -1px; }
.st-match { background: #7c8bd6; } .st-select { background: #a7b2e6; } .st-hints { background: #9a7fd1; }
.st-router { background: #2459cf; } .st-shadow { background: #c3b5e4; } .st-price { background: #b9c2cf; }
.st-resolve { background: #e8590c; } .st-tool { background: #17784b; } .st-validate { background: #6aa786; } .st-settle { background: #8a94a1; }

pre.json {
  margin: 0; padding: 12px; overflow: auto; max-height: 360px; font: 12px/1.5 var(--mono);
  background: var(--code); border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--ink-2);
}
.hint-list { margin: 0; padding-left: 18px; display: grid; gap: 4px; font-size: 13px; }
.routing-row { display: grid; grid-template-columns: 210px 70px minmax(0, 1fr); gap: 10px; align-items: center; font-size: 13px; }

/* ------------------------------------------------- reference links */

a.ref { color: var(--link); text-decoration: none; border-bottom: 1px dotted currentColor; cursor: pointer; }
a.ref:hover { border-bottom-style: solid; text-decoration: none; }
.ref.pending, .ref.unreadable { font-family: var(--mono); font-size: 0.88em; color: var(--muted); }

/* ------------------------------------------------------------ drawer */

dialog.drawer {
  position: fixed; inset: 0 0 0 auto; margin: 0; height: 100vh; max-height: 100vh;
  width: min(520px, 100vw); border: 0; border-left: 1px solid var(--line); padding: 0;
  background: var(--panel); color: var(--ink); box-shadow: var(--shadow-lg);
}
dialog.drawer::backdrop { background: rgba(10, 14, 20, 0.35); }
.drawer-bar { display: flex; align-items: center; gap: 8px; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.drawer-note { flex: 1; color: var(--muted); font-size: 12.5px; }
.drawer-body { padding: 18px 20px; display: grid; gap: 14px; }
.drawer-body h2 { font-size: 20px; font-weight: 650; letter-spacing: -0.4px; }
.wref { font: 12px/1.5 var(--mono); color: var(--muted); overflow-wrap: anywhere; }

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

.empty { padding: 28px; text-align: center; color: var(--muted); }
.spinner {
  display: inline-block; width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid var(--line-strong); border-top-color: var(--accent); animation: spin 0.8s linear infinite; vertical-align: -2px;
}
@keyframes spin { to { transform: rotate(360deg); } }
.pass { color: var(--ok); font-weight: 600; }
.fail { color: var(--bad); font-weight: 600; }
.skip { color: var(--warn); font-weight: 600; }
.entity-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 12px; }
.entity-grid .card + .card { margin-top: 0; }
.pattern { font: 12px var(--mono); background: var(--code); border-radius: 4px; padding: 1px 5px; overflow-wrap: anywhere; }

/* ----------------------------------------------------------- narrow */

@media (max-width: 960px) {
  .app { grid-template-columns: minmax(0, 1fr); }
  .sidebar { position: fixed; z-index: 20; left: 0; top: 0; width: min(280px, 86vw); transform: translateX(-100%); transition: transform 0.2s; box-shadow: var(--shadow-lg); }
  .sidebar.open { transform: none; }
  .icon-button.menu { display: inline-grid; }
  .topbar { padding: 0 16px; }
  .page { padding: 20px 16px 48px; }
  .grid-2 { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  .page-header { flex-direction: column; align-items: stretch; }
  .page-header h1 { font-size: 24px; }
  .kv { grid-template-columns: minmax(0, 1fr); }
  .kv .k { padding-bottom: 0; border-bottom: 0 !important; font-size: 12px; }
  .bar-row { grid-template-columns: 120px minmax(0, 1fr) 40px; }
  .routing-row { grid-template-columns: minmax(0, 1fr) 60px; }
  .routing-row > :last-child { grid-column: 1 / -1; }
  .result-head { flex-direction: column; gap: 2px; }
  .response-head .price { margin-left: 0; width: 100%; }
}

/* Key-value lists stack inside narrow cards. */
.card-body { container-type: inline-size; }
@container (max-width: 460px) {
  .kv { grid-template-columns: minmax(0, 1fr); }
  .kv .k { padding: 8px 0 0; border-bottom: 0 !important; font-size: 12px; }
  .kv > div:not(.k) { padding-top: 2px; }
}
.table td.hub-cell { min-width: 300px; }
.clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* Design > Architecture diagram. The global svg rule strokes everything and
   fills nothing, so each part sets its own fill and stroke. */
.arch-card { padding: 12px; }
.arch-scroll { overflow-x: auto; }
.arch { display: block; width: 100%; min-width: 960px; height: auto; stroke: none; }
.arch text { fill: var(--ink); stroke: none; font-family: var(--font); font-size: 12px; }
.arch .title { font-size: 13px; font-weight: 650; }
.arch .title.small { font-size: 11px; font-family: var(--mono); }
.arch .block-title { font-size: 14px; font-weight: 700; }
.arch .sub { fill: var(--muted); font-size: 11.5px; }
.arch .num { font-size: 11px; font-weight: 700; fill: var(--accent); }
.arch .status { font-size: 10.5px; font-weight: 650; text-transform: uppercase; letter-spacing: 0.04em; }
.arch .status.running { fill: var(--ok); }
.arch .status.planned { fill: var(--warn); }
.arch .region { fill: none; stroke: var(--line-strong); stroke-width: 1; }
.arch .cf-region { fill: color-mix(in srgb, var(--brand) 5%, transparent); stroke: color-mix(in srgb, var(--brand) 55%, transparent); }
.arch .region-label { font-size: 12px; font-weight: 700; fill: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }
.arch .region-label.cf { fill: var(--brand); }
.arch .box { fill: var(--panel); stroke: var(--line-strong); stroke-width: 1; }
.arch .box.worker { fill: var(--panel-2); stroke: var(--line-strong); }
.arch .box.block { stroke: var(--accent); stroke-width: 1.4; }
.arch .box.ext { fill: var(--panel); }
.arch .planned { stroke-dasharray: 5 4; }
.arch .step { fill: var(--panel-2); stroke: var(--line); stroke-width: 1; }
.arch .step-num { fill: var(--accent-soft); stroke: var(--accent); stroke-width: 1; }
.arch .chip rect { fill: var(--panel); stroke-width: 1.2; }
.arch .chip text { font-size: 11px; font-weight: 600; }
.arch .chip-cf rect { stroke: var(--brand); }
.arch .chip-cf text { fill: var(--brand); }
.arch .chip-ext rect { stroke: var(--ink-2); }
.arch .chip-ext text { fill: var(--ink-2); }
.arch .arrow { fill: none; stroke: var(--accent); stroke-width: 1.6; }
.arch .arrowhead { fill: var(--accent); stroke: none; }
.arch .arrow-label { font-size: 10.5px; fill: var(--accent); font-weight: 600; }

/* ------------------------------------------------------- design pages */

.design-tools { display: grid; gap: 10px; margin: 0 0 20px; }
.filter-input { width: 100%; max-width: 420px; font: inherit; color: var(--ink); background: var(--panel); border: 1px solid var(--line-strong); border-radius: var(--radius-sm); padding: 8px 10px; }
.toc { display: flex; flex-wrap: wrap; gap: 6px; }
.toc-link { font: 500 12.5px/1 var(--font); color: var(--muted); background: var(--panel); border: 1px solid var(--line); border-radius: 999px; padding: 6px 10px; cursor: pointer; }
.toc-link:hover { color: var(--accent); border-color: var(--accent); }
.design-section { margin-top: 28px; scroll-margin-top: 64px; }
.design-section .section-title { margin-bottom: 10px; }
.design-section .section-title h2 { font-size: 17px; }
.section-note { color: var(--muted); max-width: 760px; margin: 0 0 12px; }
.boundary-rule { margin-top: 12px; }
.boundary-rule p { margin: 2px 0; }
.defs { margin: 0; }
.def { display: grid; grid-template-columns: minmax(150px, 220px) minmax(0, 1fr); gap: 4px 18px; padding: 11px 18px; border-bottom: 1px solid var(--line); }
.def:last-child { border-bottom: 0; }
.def dt { font-weight: 600; display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px; }
.def dd { margin: 0; }
.def dd .small { margin-top: 4px; }
.def-list { margin: 0; padding-left: 18px; }
.def-list li + li { margin-top: 3px; }
.service-card .role { margin: 0 0 10px; font-size: 14.5px; }
.design-table td { vertical-align: top; }
.design-table td.step-name { font-weight: 600; min-width: 150px; }
.design-table td.num { color: var(--muted); }
.seq-legend { margin: 8px 6px 2px; }
.callout p:first-of-type { margin-top: 4px; }

.seq { display: block; width: 100%; min-width: 900px; height: auto; stroke: none; }
.seq text { fill: var(--ink); stroke: none; font-family: var(--font); font-size: 11.5px; }
.seq .band { fill: var(--panel-2); }
.seq .lane-head { fill: var(--panel); stroke: var(--line-strong); stroke-width: 1; }
.seq .lane-title { font-size: 12.5px; font-weight: 650; }
.seq .lane-sub { fill: var(--muted); font-size: 10.5px; }
.seq .lifeline { stroke: var(--line-strong); stroke-width: 1; stroke-dasharray: 3 4; }
.seq .num-dot { fill: var(--accent-soft); stroke: var(--accent); stroke-width: 1; }
.seq .num { font-size: 11px; font-weight: 700; fill: var(--accent); }
.seq .msg { fill: none; stroke: var(--accent); stroke-width: 1.6; }
.seq .msg.ret { stroke: var(--muted); stroke-width: 1; }
.seq .msg.planned { stroke: var(--warn); stroke-dasharray: 5 4; }
.seq .msg-label { font-weight: 600; fill: var(--accent); }
.seq .msg-label.ret { fill: var(--muted); font-weight: 500; }
.seq .msg-label.planned { fill: var(--warn); }
.seq .arrowhead { fill: var(--accent); stroke: none; }
.seq .arrowhead.ret { fill: var(--muted); }
.seq .arrowhead.planned { fill: var(--warn); }
.seq .note { fill: var(--panel); stroke: var(--accent); stroke-width: 1; }
.seq .note.planned { stroke: var(--warn); stroke-dasharray: 4 3; }
.seq .note-text { font-size: 11.5px; }

@media (max-width: 640px) {
  .def { grid-template-columns: minmax(0, 1fr); padding: 10px 14px; }
}

/* Long-form Design pages, loaded from public/design/*.html. */
.doc { max-width: 900px; }
.doc > section { margin-top: 28px; scroll-margin-top: 64px; }
.doc > section:first-child { margin-top: 4px; }
.doc h2 { font-size: 17px; font-weight: 600; margin: 0 0 10px; }
.doc h3 { font-size: 14.5px; font-weight: 600; margin: 20px 0 6px; }
.doc p { margin: 0 0 10px; }
.doc ul, .doc ol { margin: 0 0 12px; padding-left: 22px; }
.doc li + li { margin-top: 4px; }
.doc pre { margin: 0 0 14px; padding: 12px 14px; background: var(--code); border: 1px solid var(--line); border-radius: var(--radius-sm); overflow-x: auto; font: 12.5px/1.5 var(--mono); }
.doc pre code { font-size: inherit; }
.doc .card { margin: 0 0 14px; }
.doc .table td { vertical-align: top; }
.doc .pill { margin-right: 4px; }
.doc-defs { margin: 0 0 12px; display: grid; grid-template-columns: minmax(120px, 190px) minmax(0, 1fr); gap: 6px 16px; }
.doc-defs dt { font-weight: 600; }
.doc-defs dd { margin: 0; }
@media (max-width: 640px) {
  .doc-defs { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .doc-defs dd { margin-bottom: 8px; }
}