/* ============================================================
   GOV.UK One Login, unpacked: shared stylesheet
   ============================================================ */

:root {
  --bg: #fafaf7;
  --bg-soft: #f3f1ea;
  --bg-card: #ffffff;
  --ink: #0b0c0c;
  --ink-soft: #4a4a48;
  --ink-faded: #8a877e;
  --rule: #e6e3d8;
  --rule-strong: #cfcabb;
  --accent: #1d70b8;
  --accent-deep: #144e81;
  --accent-soft: #e6f0f7;
  --green: #1e7a5a;
  --green-soft: #e4f1ea;
  --amber: #946c00;
  --amber-soft: #f7efd9;
  --red: #b3261e;
  --red-soft: #f7e4e3;
  --purple: #6b4ea8;
  --code-bg: #f5f3ec;
  --serif: 'Fraunces', Georgia, serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'JetBrains Mono', 'Courier New', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); }

/* ---------- SITE NAV ---------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 250, 247, 0.92);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--rule);
}

.site-nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  gap: 28px;
  height: 60px;
}

.wordmark {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--ink);
  white-space: nowrap;
}
.wordmark em { font-style: italic; font-weight: 400; color: var(--accent); }

.nav-links {
  display: flex;
  gap: 4px;
  margin-left: auto;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-links::-webkit-scrollbar { display: none; }

.nav-links a {
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  color: var(--ink-soft);
  padding: 7px 11px;
  border-radius: 3px;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}
.nav-links a:hover { background: var(--bg-soft); color: var(--ink); }
.nav-links a.active { background: var(--accent); color: #fff; }

/* ---------- LAYOUT ---------- */
.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 64px 32px 120px;
  position: relative;
}
.wrap-wide { max-width: 1100px; }

section { margin-bottom: 88px; }

/* ---------- MASTHEAD ---------- */
header.masthead {
  border-bottom: 1px solid var(--rule);
  padding-bottom: 44px;
  margin-bottom: 60px;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.eyebrow::after { content: ''; flex: 1; height: 1px; background: var(--rule); }

h1.title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(44px, 6.5vw, 78px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin-bottom: 22px;
  font-variation-settings: 'opsz' 144;
}
h1.title em { font-style: italic; font-weight: 400; color: var(--accent); }

.dek {
  font-family: var(--serif);
  font-size: 21px;
  line-height: 1.42;
  color: var(--ink-soft);
  max-width: 620px;
  margin-bottom: 30px;
}

.meta {
  display: flex;
  gap: 24px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-faded);
  flex-wrap: wrap;
}
.meta span strong { color: var(--ink); font-weight: 500; }

/* ---------- SECTION HEADERS ---------- */
.section-label {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--ink-faded);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-label::before { content: ''; width: 24px; height: 1px; background: var(--accent); }

h2 {
  font-family: var(--serif);
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  font-variation-settings: 'opsz' 72;
}

h3.serif {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.section-intro {
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 640px;
  margin-bottom: 40px;
}

.page-head { margin-bottom: 48px; }
.page-head h2 { font-size: clamp(34px, 5vw, 52px); }

/* ---------- BUTTONS ---------- */
.btn {
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  padding: 9px 16px;
  border: 1px solid var(--rule-strong);
  background: var(--bg-card);
  color: var(--ink);
  cursor: pointer;
  border-radius: 3px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-deep); color: #fff; }
.btn.ghost { border-color: transparent; background: var(--bg-soft); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ---------- PHASE GRID (index) ---------- */
.phase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.phase-card {
  border: 1px solid var(--rule);
  background: var(--bg-card);
  padding: 22px;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: border-color 0.2s, transform 0.2s;
}
.phase-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.phase-card .pn {
  font-family: var(--serif);
  font-style: italic;
  font-size: 36px;
  color: var(--accent);
  line-height: 1;
}
.phase-card h3 {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  margin: 12px 0 6px;
}
.phase-card p { font-size: 14px; color: var(--ink-soft); }

/* ---------- DECISIONS ---------- */
.decisions { border-top: 1px solid var(--rule); }
.decision {
  border-bottom: 1px solid var(--rule);
  padding: 20px 0;
  cursor: pointer;
}
.decision-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
}
.decision-head .dn {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  width: 28px;
  flex-shrink: 0;
}
.decision-head h3 {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  flex: 1;
}
.decision-head .chev {
  color: var(--ink-faded);
  transition: transform 0.2s;
  font-size: 13px;
}
.decision.open .chev { transform: rotate(90deg); }
.decision-body {
  display: none;
  padding: 14px 0 4px 44px;
  color: var(--ink-soft);
  font-size: 15px;
}
.decision.open .decision-body { display: block; }
.decision-body code {
  font-family: var(--mono);
  font-size: 13px;
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 2px;
}

/* ---------- CATEGORIES ---------- */
.categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.category {
  border: 1px solid var(--rule);
  background: var(--bg-card);
  padding: 22px;
  transition: border-color 0.2s, transform 0.2s;
}
.category:hover { border-color: var(--rule-strong); transform: translateY(-2px); }
.category-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--rule);
}
.category-head h3 { font-family: var(--serif); font-size: 17px; font-weight: 600; }
.category-count {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faded);
  text-transform: uppercase;
}
.tool-list { display: flex; flex-wrap: wrap; gap: 6px; }
.tool {
  font-family: var(--mono);
  font-size: 12px;
  padding: 4px 8px;
  background: var(--bg-soft);
  color: var(--ink-soft);
  border-radius: 2px;
}
.tool.endpoint {
  background: transparent;
  border: 1px solid var(--rule-strong);
  color: var(--accent-deep);
}
.tool.endpoint::before { content: '/'; color: var(--ink-faded); }

/* ---------- TREE ---------- */
.tree {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  padding: 22px 28px;
  font-family: var(--mono);
  font-size: 14px;
}
.tree-row {
  padding: 4px 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-soft);
}
.tree-row:hover { color: var(--accent); }
.tree-row.is-file { cursor: default; }
.tree-toggle { width: 12px; color: var(--ink-faded); font-size: 10px; }
.tree-icon { font-size: 12px; color: var(--ink-faded); }
.tree-name { color: var(--ink); }
.tree-meta { margin-left: auto; font-size: 11px; color: var(--ink-faded); }
.tree-children {
  margin-left: 20px;
  border-left: 1px dotted var(--rule-strong);
  padding-left: 16px;
  display: none;
}
.tree-node.is-open > .tree-children { display: block; }
.tree-row.is-file .tree-toggle { visibility: hidden; }
.tree-row.is-file .tree-icon { color: var(--accent); }

/* ============================================================
   FLOW PAGE: sequence diagram
   ============================================================ */
.flow-layout {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 36px;
  align-items: start;
}
/* Without min-width:0 the grid tracks expand to fit the panel's longest
   pre line, which silently squeezes the diagram column. */
.flow-layout > * { min-width: 0; }
.flow-diagram-wrap {
  border: 1px solid var(--rule);
  background: var(--bg-card);
  overflow: hidden;
}
.flow-diagram-wrap svg { display: block; width: 100%; height: auto; }

.flow-msg { cursor: pointer; }
.flow-msg .ln { stroke: var(--rule-strong); stroke-width: 1.5; }
.flow-msg .lbl { fill: var(--ink-faded); font-family: var(--mono); font-size: 11px; }
.flow-msg .num { fill: var(--rule-strong); }
.flow-msg .numtxt { fill: #fff; font-family: var(--mono); font-size: 10px; font-weight: 600; }
.flow-msg:hover .ln { stroke: var(--ink-soft); }
.flow-msg:hover .lbl { fill: var(--ink-soft); }
.flow-msg.active .ln { stroke: var(--accent); stroke-width: 2.5; }
.flow-msg.active .lbl { fill: var(--accent-deep); font-weight: 600; }
.flow-msg.active .num { fill: var(--accent); }
.flow-msg.done .ln { stroke: var(--accent); stroke-opacity: 0.45; }
.flow-msg.done .num { fill: var(--accent); fill-opacity: 0.55; }
.flow-lane-box { fill: var(--bg-soft); stroke: var(--rule-strong); }
.flow-lane-title { fill: var(--ink); font-family: var(--sans); font-size: 13px; font-weight: 600; }
.flow-lane-sub { fill: var(--ink-faded); font-family: var(--mono); font-size: 10px; }
.flow-lifeline { stroke: var(--rule); stroke-width: 1; stroke-dasharray: 3 4; }

.flow-panel {
  position: sticky;
  top: 84px;
  border: 1px solid var(--rule);
  background: var(--bg-card);
}
.flow-panel-head { padding: 22px 24px 16px; border-bottom: 1px solid var(--rule); }
.flow-panel-step {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-faded);
  margin-bottom: 8px;
}
.flow-panel-step b { color: var(--accent); }
.flow-panel h3 {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.015em;
}
.flow-route {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faded);
  margin-top: 6px;
}
.flow-route b { color: var(--ink-soft); }
.flow-panel-body { padding: 20px 24px; }
.flow-panel-body p { font-size: 15px; color: var(--ink-soft); margin-bottom: 16px; }
.flow-note {
  font-size: 13px;
  background: var(--amber-soft);
  border-left: 3px solid var(--amber);
  padding: 10px 14px;
  color: #5c4a16;
  margin-top: 14px;
}
.flow-note b { color: var(--amber); }

.flow-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 22px 0 14px;
}
.flow-progress {
  flex: 1;
  height: 3px;
  background: var(--rule);
  position: relative;
}
.flow-progress-bar {
  position: absolute;
  inset: 0;
  background: var(--accent);
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

/* ============================================================
   CODE BLOCKS + highlighting
   ============================================================ */
.code-block {
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.65;
  background: var(--code-bg);
  border-left: 2px solid var(--accent);
  padding: 14px 16px;
  overflow-x: auto;
  white-space: pre;
  color: var(--ink);
  border-radius: 0 3px 3px 0;
  margin: 4px 0;
}
.code-cap {
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-faded);
  margin: 16px 0 6px;
}
.tok-method { color: var(--purple); font-weight: 600; }
.tok-hdr    { color: var(--accent-deep); }
.tok-key    { color: var(--accent-deep); }
.tok-str    { color: var(--green); }
.tok-num    { color: #9a5b00; }
.tok-bool   { color: var(--purple); }
.tok-punc   { color: var(--ink-faded); }
.tok-comment{ color: var(--ink-faded); font-style: italic; }
.tok-url    { color: var(--accent); }

/* ============================================================
   ENDPOINTS PAGE
   ============================================================ */
.ep-layout { display: grid; grid-template-columns: 200px 1fr; gap: 44px; align-items: start; }
.ep-sidebar { position: sticky; top: 84px; }
.ep-sidebar-label {
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-faded);
  margin-bottom: 10px;
}
.ep-sidebar a {
  display: block;
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 14px;
  padding: 7px 10px;
  border-left: 2px solid var(--rule);
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.ep-sidebar a:hover { color: var(--ink); background: var(--bg-soft); }
.ep-sidebar a.active { color: var(--accent); border-color: var(--accent); font-weight: 600; }

.ep { margin-bottom: 72px; scroll-margin-top: 84px; }
.ep-title { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 10px; }
.method {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 9px;
  border-radius: 3px;
  letter-spacing: 0.05em;
}
.method.get  { background: var(--accent-soft); color: var(--accent-deep); }
.method.post { background: var(--green-soft); color: var(--green); }
.ep-path { font-family: var(--mono); font-size: 17px; color: var(--ink); }
.ep h2 { font-size: 30px; margin: 18px 0 8px; }
.ep-summary { font-size: 16px; color: var(--ink-soft); max-width: 640px; margin-bottom: 20px; }

.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--rule); margin: 22px 0 0; }
.tab {
  font-family: var(--mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 9px 14px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--ink-faded);
  cursor: pointer;
}
.tab:hover { color: var(--ink); }
.tab.active { color: var(--accent); border-color: var(--accent); }
.tab-panel { display: none; padding-top: 18px; }
.tab-panel.active { display: block; }

table.data { width: 100%; border-collapse: collapse; font-size: 14px; }
table.data th {
  text-align: left;
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-faded);
  padding: 8px 12px 8px 0;
  border-bottom: 1px solid var(--rule-strong);
}
table.data td {
  padding: 11px 12px 11px 0;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
  color: var(--ink-soft);
}
table.data td code, table.data td .pname {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--accent-deep);
}
.req-tag {
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 2px;
}
.req-tag.req { background: var(--red-soft); color: var(--red); }
.req-tag.opt { background: var(--bg-soft); color: var(--ink-faded); }
.err-code {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--red);
  font-weight: 600;
}
.status-pill {
  font-family: var(--mono);
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 2px;
  background: var(--bg-soft);
  color: var(--ink-soft);
}

/* ============================================================
   CLAIMS / LEVELS PAGE
   ============================================================ */
.builder {
  border: 1px solid var(--rule);
  background: var(--bg-card);
  padding: 28px;
  margin-bottom: 28px;
}
.builder-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.opt-group { margin-bottom: 22px; }
.opt-group > .opt-label {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-faded);
  margin-bottom: 10px;
  display: block;
}
.opt {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 10px 12px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  margin-bottom: 8px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.opt:hover { border-color: var(--rule-strong); }
.opt.checked { border-color: var(--accent); background: var(--accent-soft); }
.opt input { margin-top: 3px; accent-color: var(--accent); }
.opt-text strong { font-size: 14px; }
.opt-text .pname { font-family: var(--mono); font-size: 12px; color: var(--accent-deep); }
.opt-text p { font-size: 13px; color: var(--ink-soft); margin-top: 2px; }
.opt.disabled { opacity: 0.45; pointer-events: none; }

.builder-out { background: var(--code-bg); border: 1px solid var(--rule); padding: 18px; }
.vtr-result {
  font-family: var(--mono);
  font-size: 18px;
  color: var(--accent-deep);
  margin-bottom: 6px;
}
.vtr-valid { font-family: var(--mono); font-size: 12px; }
.vtr-valid.ok { color: var(--green); }
.vtr-valid.bad { color: var(--red); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}
.data-card {
  border: 1px solid var(--rule);
  background: var(--bg-card);
  padding: 20px;
}
.data-card h3 {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent-deep);
  margin-bottom: 4px;
}
.data-card .card-kind {
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-faded);
}
.data-card p { font-size: 14px; color: var(--ink-soft); margin: 8px 0 12px; }

/* ============================================================
   DECODER PAGE
   ============================================================ */
.jwt-input {
  width: 100%;
  min-height: 150px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
  padding: 16px;
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  background: var(--bg-card);
  resize: vertical;
  color: var(--ink);
  word-break: break-all;
}
.jwt-input:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.jwt-input.c-h { }
.jwt-samples { display: flex; gap: 8px; flex-wrap: wrap; margin: 14px 0; }

.jwt-raw { word-break: break-all; font-family: var(--mono); font-size: 13px; line-height: 1.7; }
.jwt-raw .seg-h { color: var(--red); }
.jwt-raw .seg-p { color: var(--accent); }
.jwt-raw .seg-s { color: var(--green); }
.jwt-raw .seg-dot { color: var(--ink-faded); }

.jwt-parts { display: grid; gap: 16px; margin-top: 24px; }
.jwt-part { border: 1px solid var(--rule); border-radius: 4px; overflow: hidden; }
.jwt-part-head {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 9px 14px;
  font-weight: 600;
}
.jwt-part.h .jwt-part-head { background: var(--red-soft); color: var(--red); }
.jwt-part.p .jwt-part-head { background: var(--accent-soft); color: var(--accent-deep); }
.jwt-part.s .jwt-part-head { background: var(--green-soft); color: var(--green); }
.jwt-part-body { padding: 14px 16px; }

.claim-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.claim-table td { padding: 8px 10px 8px 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
.claim-table td:first-child {
  font-family: var(--mono);
  color: var(--accent-deep);
  white-space: nowrap;
  font-size: 12.5px;
}
.claim-table td:last-child { color: var(--ink-soft); font-size: 13px; line-height: 1.5; }
.claim-annot {
  display: inline-block;
  font-size: 11px;
  color: var(--accent);
  font-family: var(--mono);
  cursor: help;
  border-bottom: 1px dotted var(--accent);
}
.jwt-error {
  background: var(--red-soft);
  border-left: 3px solid var(--red);
  padding: 12px 14px;
  font-size: 14px;
  color: var(--red);
}
.epoch-note { font-size: 11px; color: var(--ink-faded); font-family: var(--sans); }

/* ---------- callout ---------- */
.callout {
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  background: var(--bg-card);
  padding: 16px 20px;
  font-size: 15px;
  color: var(--ink-soft);
  margin: 20px 0;
}
.callout b { color: var(--ink); }

/* ---------- FOOTER ---------- */
footer {
  margin-top: 100px;
  padding-top: 28px;
  border-top: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-faded);
  flex-wrap: wrap;
  gap: 12px;
}
footer a { color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--rule-strong); }
footer a:hover { color: var(--accent); border-color: var(--accent); }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 920px) {
  .flow-layout { grid-template-columns: 1fr; }
  .flow-panel { position: static; }
  .ep-layout { grid-template-columns: 1fr; }
  .ep-sidebar { position: static; display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 32px; }
  .ep-sidebar a { border-left: none; border-bottom: 2px solid var(--rule); }
  .builder-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .wrap { padding: 40px 20px 80px; }
  .site-nav-inner { padding: 0 16px; gap: 14px; }
  section { margin-bottom: 64px; }
}

/* ============================================================
   v2: scroll reveal · pipeline stepper · flow polish
   ============================================================ */

/* ---- scroll reveal ---- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s cubic-bezier(.2,.7,.2,1),
              transform 0.7s cubic-bezier(.2,.7,.2,1);
  will-change: opacity, transform;
}
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---- pipeline stepper (ccunpacked-inspired) ---- */
.pipeline {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
  padding: 24px 16px;
  margin-bottom: 24px;
  border: 1px solid var(--rule);
  background: var(--bg-card);
  border-radius: 4px;
}
.pipeline-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 0;
  cursor: pointer;
  background: none;
  border: none;
  font: inherit;
  color: inherit;
}
.pipeline-chip {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--rule-strong);
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--ink-faded);
  transition: background 0.25s ease, border-color 0.25s ease,
              color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}
.pipeline-cap {
  font-family: var(--mono);
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-faded);
  white-space: nowrap;
  transition: color 0.25s ease;
}
.pipeline-step:hover .pipeline-chip {
  border-color: var(--ink-faded);
  color: var(--ink);
}
.pipeline-step.done .pipeline-chip {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.pipeline-step.done .pipeline-cap { color: var(--ink-soft); }
.pipeline-step.active .pipeline-chip {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-deep);
  box-shadow:
    0 0 0 6px rgba(29, 112, 184, 0.12),
    0 0 14px rgba(29, 112, 184, 0.5);
  animation: pipePulse 1.8s ease-in-out infinite;
}
.pipeline-step.active .pipeline-cap {
  color: var(--accent);
  font-weight: 600;
}
.pipeline-conn {
  flex-shrink: 0;
  width: 18px;
  height: 2px;
  background: var(--rule-strong);
  align-self: flex-start;
  margin-top: 17px;
  transition: background 0.35s ease;
  border-radius: 1px;
}
.pipeline-conn.done { background: var(--accent); }
@keyframes pipePulse {
  0%, 100% { box-shadow: 0 0 0 6px rgba(29, 112, 184, 0.12), 0 0 14px rgba(29, 112, 184, 0.5); }
  50%      { box-shadow: 0 0 0 9px rgba(29, 112, 184, 0.06), 0 0 22px rgba(29, 112, 184, 0.7); }
}
@media (prefers-reduced-motion: reduce) {
  .pipeline-step.active .pipeline-chip { animation: none; }
}
@media (max-width: 640px) {
  .pipeline-cap { display: none; }
  .pipeline-conn { width: 10px; }
}

/* ---- flow diagram: stronger active state, solid lifelines, filled arrows ---- */
.flow-lifeline {
  stroke: var(--rule);
  stroke-width: 1.2;
  stroke-dasharray: none;
}
.flow-msg .arw {
  fill: var(--rule-strong);
  transition: fill 0.2s ease;
}
.flow-msg:hover .arw { fill: var(--ink-soft); }
.flow-msg.active .arw { fill: var(--accent); }
.flow-msg.done .arw   { fill: var(--accent); fill-opacity: 0.5; }

.flow-msg .ln { transition: stroke 0.2s ease, stroke-width 0.2s ease; }
.flow-msg.active .ln {
  filter: drop-shadow(0 0 4px rgba(29,112,184,0.55));
}
.flow-msg.active .num,
.flow-msg.active .arw {
  filter: drop-shadow(0 0 4px rgba(29,112,184,0.55));
}
.flow-msg .hit {
  fill: transparent;
  pointer-events: all;
  cursor: pointer;
}

/* draw-in animation for active arrow */
.flow-msg.active .ln {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: drawIn 0.55s cubic-bezier(.2,.8,.2,1) forwards;
}
.flow-msg.self.active .ln {
  stroke-dasharray: 200;
  stroke-dashoffset: 200;
}
@keyframes drawIn {
  to { stroke-dashoffset: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .flow-msg.active .ln { animation: none; stroke-dasharray: none; }
}

/* ---- flow panel crossfade between steps ---- */
.flow-panel-head, .flow-panel-body {
  animation: flowPanelIn 0.4s cubic-bezier(.2,.7,.2,1);
}
@keyframes flowPanelIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .flow-panel-head, .flow-panel-body { animation: none; }
}

/* ---- decisions chevron uses caret instead of em-dashy character ---- */
.decision .chev { font-family: var(--mono); }

/* ============================================================
   v3: ADHD-friendly learning shell
   A single calm path: top progress, a spine/map, and one
   focused lesson card per screen. Reuses all tokens above.
   ============================================================ */

/* ---- always-visible overall progress ---- */
.top-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--rule);
  z-index: 60;
  pointer-events: none;
}
.top-progress-bar {
  height: 100%;
  background: var(--accent);
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 0.45s cubic-bezier(.2,.7,.2,1);
}
.nav-pct {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-faded);
  margin-left: 14px;
  flex-shrink: 0;
}

/* ---- app layout: spine + stage ---- */
.app {
  max-width: 1180px;
  margin: 0 auto;
  padding: 40px 32px 120px;
  display: grid;
  grid-template-columns: 270px 1fr;
  gap: 52px;
  align-items: start;
}
.stage { min-width: 0; }

/* ---- spine / map ---- */
.spine {
  position: sticky;
  top: 84px;
  max-height: calc(100vh - 108px);
  overflow-y: auto;
  padding-right: 6px;
  scrollbar-width: thin;
}
.spine-head {
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-faded);
  margin: 0 0 14px 2px;
}
.sp-mod { margin-bottom: 4px; }
.sp-mod-head {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  padding: 7px 6px;
  border-radius: 4px;
  color: inherit;
  font: inherit;
}
.sp-mod-head:hover { background: var(--bg-soft); }
.sp-mod-mark {
  width: 16px; height: 16px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1.5px solid var(--rule-strong);
  font-size: 10px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.sp-mod-mark.done { background: var(--green); border-color: var(--green); }
.sp-mod-title {
  flex: 1;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.sp-mod-count {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-faded);
}
.sp-lessons { display: none; margin: 2px 0 8px 22px; }
.sp-mod.open .sp-lessons { display: block; }
.sp-lesson {
  display: flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  padding: 6px 8px;
  border-radius: 4px;
  color: var(--ink-soft);
  border-left: 1px solid var(--rule);
}
.sp-lesson:hover { background: var(--bg-soft); color: var(--ink); }
.sp-dot {
  width: 7px; height: 7px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1.5px solid var(--rule-strong);
  background: var(--bg-card);
}
.sp-lesson.done .sp-dot { background: var(--green); border-color: var(--green); }
.sp-lesson.active { background: var(--accent-soft); color: var(--accent-deep); border-left-color: var(--accent); }
.sp-lesson.active .sp-dot { border-color: var(--accent); background: var(--accent); }
.sp-l-title { flex: 1; font-size: 12.5px; line-height: 1.35; }
.sp-l-est { font-family: var(--mono); font-size: 10px; color: var(--ink-faded); }
.sp-ref {
  display: block;
  text-decoration: none;
  font-size: 13.5px;
  color: var(--ink-soft);
  padding: 8px 10px;
  border-left: 2px solid var(--rule);
  border-radius: 0 3px 3px 0;
}
.sp-ref:hover { background: var(--bg-soft); color: var(--ink); }
.sp-ref.active { color: var(--accent); border-color: var(--accent); font-weight: 600; }

/* ---- home ---- */
.home { max-width: 720px; }
.home-eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 18px;
}
.home-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(40px, 6vw, 68px);
  line-height: 1.03;
  letter-spacing: -0.025em;
  margin-bottom: 20px;
}
.home-title em { font-style: italic; font-weight: 400; color: var(--accent); }
.home-dek {
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1.45;
  color: var(--ink-soft);
  margin-bottom: 30px;
}
.home-cta { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-bottom: 48px; }
.btn.big { font-size: 13px; padding: 13px 22px; }
.home-prog { font-family: var(--mono); font-size: 12.5px; color: var(--ink-faded); }
.home-mods {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
}
.home-mod {
  border: 1px solid var(--rule);
  background: var(--bg-card);
  border-radius: 5px;
  padding: 20px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, transform 0.2s;
}
.home-mod:hover { border-color: var(--accent); transform: translateY(-2px); }
.home-mod.done { background: var(--green-soft); border-color: #c9e3d6; }
.home-mod-top { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.home-mod-n {
  font-family: var(--serif);
  font-style: italic;
  font-size: 26px;
  color: var(--accent);
  line-height: 1;
}
.home-mod-kicker {
  font-family: var(--mono);
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-faded);
}
.home-mod-meta { margin-left: auto; font-family: var(--mono); font-size: 11px; color: var(--ink-faded); }
.home-mod-check {
  margin-left: auto;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.home-mod h3 { font-family: var(--serif); font-size: 18px; font-weight: 600; margin-bottom: 5px; }
.home-mod p { font-size: 13.5px; color: var(--ink-soft); line-height: 1.45; }
.home-mod-foot {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-faded);
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--rule);
}
.home-ref { margin-top: 40px; font-size: 14px; color: var(--ink-faded); }
.home-ref a { color: var(--accent); }

/* ---- lesson card ---- */
.lesson { max-width: 680px; }
.l-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 11px;
  margin-bottom: 16px;
}
.l-kicker {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-weight: 500;
}
.l-pos, .l-est { color: var(--ink-faded); }
.l-est::before { content: '·'; margin-right: 14px; color: var(--rule-strong); }
.l-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(30px, 4.4vw, 40px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.l-hook {
  font-family: var(--serif);
  font-size: 19px;
  font-style: italic;
  color: var(--ink-soft);
  margin-bottom: 26px;
}
.l-body > p { font-size: 16px; color: var(--ink-soft); margin-bottom: 16px; }
.l-body > p:last-child { margin-bottom: 0; }
.lh {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-faded);
  margin: 24px 0 12px;
}
.tldr {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--accent-soft);
  border-radius: 5px;
  padding: 16px 18px;
  font-size: 16px;
  color: var(--ink);
  line-height: 1.5;
  margin-bottom: 22px;
}
.tldr-tag {
  font-family: var(--mono);
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-deep);
  background: #fff;
  border-radius: 3px;
  padding: 4px 7px;
  flex-shrink: 0;
  margin-top: 1px;
}
.lnote {
  font-size: 14px;
  background: var(--amber-soft);
  border-left: 3px solid var(--amber);
  padding: 12px 16px;
  color: #5c4a16;
  border-radius: 0 4px 4px 0;
  margin: 18px 0;
}
.lnote b { color: var(--amber); }
.llist, .lsteps { margin: 4px 0 18px; padding-left: 22px; }
.llist li, .lsteps li { font-size: 15.5px; color: var(--ink-soft); margin-bottom: 9px; line-height: 1.5; }
.llist { list-style: none; padding-left: 4px; }
.llist li { position: relative; padding-left: 22px; }
.llist li::before { content: ''; position: absolute; left: 2px; top: 10px; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.lsteps li { padding-left: 6px; }
.lsteps li::marker { font-family: var(--mono); font-size: 13px; color: var(--accent); font-weight: 600; }
.l-body code, .l-deep-body code, .dblock-body code {
  font-family: var(--mono);
  font-size: 13px;
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 2px;
}
.dblock { border: 1px solid var(--rule); border-radius: 5px; padding: 16px 18px; margin: 14px 0; background: var(--bg-card); }
.dblock-title { font-family: var(--serif); font-size: 17px; font-weight: 600; margin-bottom: 7px; }
.dblock-body { font-size: 14.5px; color: var(--ink-soft); line-height: 1.55; }

.l-deep {
  border: 1px solid var(--rule);
  border-radius: 5px;
  margin: 22px 0;
  background: var(--bg-soft);
}
.l-deep summary {
  cursor: pointer;
  padding: 13px 18px;
  font-family: var(--mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  list-style: none;
}
.l-deep summary::-webkit-details-marker { display: none; }
.l-deep summary::before { content: '+ '; color: var(--accent); font-weight: 700; }
.l-deep[open] summary::before { content: '– '; }
.l-deep[open] summary { border-bottom: 1px solid var(--rule); }
.l-deep-body { padding: 16px 18px; }

.l-task {
  display: flex;
  gap: 13px;
  align-items: flex-start;
  border: 1px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 5px;
  padding: 14px 16px;
  font-size: 15px;
  color: var(--accent-deep);
  line-height: 1.45;
  margin: 26px 0 16px;
}
.l-task-tag {
  font-family: var(--mono);
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: var(--accent);
  color: #fff;
  border-radius: 3px;
  padding: 4px 8px;
  flex-shrink: 0;
  margin-top: 1px;
}
.l-widget { margin: 18px 0 8px; }

.l-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
}

/* ---- quick check ---- */
.l-check {
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 20px 20px 22px;
  margin: 30px 0 8px;
  background: var(--bg-card);
}
.chk-q { font-size: 16px; font-weight: 500; margin-bottom: 16px; line-height: 1.45; }
.chk-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-right: 10px;
  vertical-align: 1px;
}
.chk-opts { display: flex; flex-direction: column; gap: 9px; }
.chk-opt {
  display: flex;
  align-items: center;
  gap: 11px;
  text-align: left;
  width: 100%;
  font: inherit;
  font-size: 15px;
  color: var(--ink);
  background: var(--bg-card);
  border: 1px solid var(--rule-strong);
  border-radius: 5px;
  padding: 12px 15px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.chk-opt:hover { border-color: var(--accent); }
.chk-mark {
  width: 16px; height: 16px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1.5px solid var(--rule-strong);
}
.l-check.answered .chk-opt { cursor: default; }
.l-check.answered .chk-opt:hover { border-color: var(--rule-strong); }
.chk-opt.locked:not(.correct):not(.wrong) { opacity: 0.5; }
.chk-opt.correct {
  border-color: var(--green);
  background: var(--green-soft);
  color: var(--green);
  font-weight: 500;
}
.chk-opt.correct .chk-mark { background: var(--green); border-color: var(--green); }
.chk-opt.correct .chk-mark::after { content: '✓'; color: #fff; font-size: 10px; display: block; text-align: center; line-height: 16px; }
.chk-opt.wrong { border-color: var(--red); background: var(--red-soft); color: var(--red); }
.chk-opt.wrong .chk-mark { background: var(--red); border-color: var(--red); }
.chk-opt.wrong .chk-mark::after { content: '✕'; color: #fff; font-size: 10px; display: block; text-align: center; line-height: 14px; }
.chk-explain {
  display: none;
  margin-top: 16px;
  padding-top: 15px;
  border-top: 1px solid var(--rule);
  font-size: 14.5px;
  color: var(--ink-soft);
  line-height: 1.5;
}
.l-check.answered .chk-explain { display: block; }

/* ---- module-complete + finale ---- */
.done-screen { max-width: 600px; margin: 24px auto; text-align: center; padding-top: 30px; }
.done-check {
  width: 64px; height: 64px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-size: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.done-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--green);
  margin-bottom: 12px;
}
.done-title { font-family: var(--serif); font-weight: 500; font-size: clamp(30px, 5vw, 44px); letter-spacing: -0.02em; margin-bottom: 10px; }
.done-sum { font-family: var(--mono); font-size: 12.5px; color: var(--ink-faded); margin-bottom: 20px; }
.done-cap { font-family: var(--serif); font-size: 19px; color: var(--ink-soft); margin-bottom: 30px; line-height: 1.45; }
.done-final { font-size: 16px; color: var(--ink-soft); margin-bottom: 24px; line-height: 1.5; }
.done-cta { display: flex; flex-direction: column; align-items: center; gap: 14px; }

/* ---- reference mode ---- */
.ref { max-width: 1100px; }
.ref-head { margin-bottom: 36px; }
.ref-head h1 { font-family: var(--serif); font-weight: 500; font-size: clamp(32px, 5vw, 48px); letter-spacing: -0.02em; margin-bottom: 10px; }
.ref-head h1 em { font-style: italic; color: var(--accent); }
.ref-head p { font-size: 17px; color: var(--ink-soft); max-width: 640px; }
.ref-block { margin-bottom: 56px; }
.ref-block .section-label {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--ink-faded);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.ref-block .section-label::before { content: ''; width: 24px; height: 1px; background: var(--accent); }
.ep-single .ep { margin-bottom: 0; }
.ep-single .ep-summary { margin-bottom: 16px; }

/* ---- small widget helpers ---- */
.flow-counter { font-family: var(--mono); font-size: 12px; color: var(--ink-faded); }
.sb-grid { grid-template-columns: 1fr 1fr; }
.opt-tag { font-size: 11px; color: var(--ink-faded); }
.vtr-explain { font-size: 13px; color: var(--ink-soft); margin-top: 14px; }
.muted { color: var(--ink-faded); font-size: 14px; }
.sig-code { font-family: var(--mono); font-size: 13px; word-break: break-all; color: var(--green); }
.sig-note { margin-top: 10px; font-size: 12.5px; color: var(--ink-faded); }
.sig-note code { font-family: var(--mono); }

/* ---- responsive ---- */
@media (max-width: 960px) {
  .app { grid-template-columns: 1fr; gap: 0; padding: 28px 22px 90px; }
  .spine { display: none; }
  .nav-pct { margin-left: 10px; }
}
@media (max-width: 640px) {
  .sb-grid { grid-template-columns: 1fr; }
  .home-cta { gap: 12px; }
  .l-foot { flex-direction: column-reverse; align-items: stretch; }
  .l-foot .btn { justify-content: center; }
}

/* ---- calm: respect reduced motion for new transitions ---- */
@media (prefers-reduced-motion: reduce) {
  .top-progress-bar, .home-mod { transition: none; }
}

/* ============================================================
   v4: clickable glossary terms + definition popover
   ============================================================ */

/* ---- inline clickable term ---- */
.term {
  font: inherit;
  color: var(--accent-deep);
  background: none;
  border: none;
  padding: 0;
  cursor: help;
  border-bottom: 1.5px dotted var(--accent);
  transition: background 0.15s, border-color 0.15s;
  border-radius: 2px;
}
.term:hover { background: var(--accent-soft); border-bottom-style: solid; }

/* ---- "New words" chip row ---- */
.l-terms {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 22px;
}
.l-terms-label {
  font-family: var(--mono);
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-faded);
  margin-right: 2px;
}
.term-chip {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--accent-deep);
  background: var(--accent-soft);
  border: 1px solid transparent;
  border-radius: 20px;
  padding: 4px 11px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.term-chip::before { content: '?'; color: var(--accent); font-weight: 700; margin-right: 5px; }
.term-chip:hover { border-color: var(--accent); }

/* ---- definition popover ---- */
.term-pop {
  position: absolute;
  z-index: 80;
  width: 320px;
  max-width: calc(100vw - 24px);
  background: var(--bg-card);
  border: 1px solid var(--rule-strong);
  border-radius: 8px;
  box-shadow: 0 8px 30px rgba(11, 12, 12, 0.16), 0 2px 8px rgba(11, 12, 12, 0.08);
  padding: 16px 18px 14px;
  display: none;
  animation: termPopIn 0.16s cubic-bezier(.2,.7,.2,1);
}
.term-pop.open { display: block; }
@keyframes termPopIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }
.term-pop-name {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-deep);
  margin-bottom: 6px;
}
.term-pop-short { font-size: 14.5px; font-weight: 500; color: var(--ink); line-height: 1.4; margin-bottom: 10px; }
.term-pop-plain { font-size: 13.5px; color: var(--ink-soft); line-height: 1.5; margin-bottom: 12px; }
.term-pop-analogy {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.5;
  background: var(--bg-soft);
  border-radius: 5px;
  padding: 9px 12px;
  margin-bottom: 12px;
}
.tp-like {
  font-family: var(--mono);
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-right: 6px;
}
.term-pop-see { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.tp-see-label, .gloss-see-label {
  font-family: var(--mono);
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-faded);
}
.term-mini {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent-deep);
  background: var(--accent-soft);
  border: none;
  border-radius: 4px;
  padding: 3px 8px;
  cursor: pointer;
}
.term-mini:hover { background: #d7e7f4; }
.term-pop-more {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  text-decoration: none;
  padding-top: 10px;
  border-top: 1px solid var(--rule);
  width: 100%;
}

/* ---- glossary reference page ---- */
.gloss-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}
.gloss-card {
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: var(--bg-card);
  padding: 18px 20px;
}
.gloss-term {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--accent-deep);
  margin-bottom: 6px;
}
.gloss-short { font-size: 14.5px; font-weight: 500; color: var(--ink); line-height: 1.4; margin-bottom: 10px; }
.gloss-plain { font-size: 13.5px; color: var(--ink-soft); line-height: 1.55; margin-bottom: 12px; }
.gloss-analogy {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.5;
  background: var(--bg-soft);
  border-radius: 5px;
  padding: 9px 12px;
  margin-bottom: 12px;
}
.gloss-see { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; }

@media (prefers-reduced-motion: reduce) {
  .term-pop { animation: none; }
}