/* Rigprobe: warm paper, ink, one amber accent. One palette, no theme switch. */

:root {
  --bg:        #f3f1ec;
  --bg-2:      #eae7df;
  --surface:   #fffefa;
  --surface-2: #f8f6f0;
  --surface-3: #ece9e1;
  --line:      #d8d3c8;
  --line-soft: #e7e3da;
  --text:      #202927;
  --text-2:    #525d58;
  --text-3:    #737b75;
  --accent:    #b76524;
  --accent-2:  #ca762d;
  --accent-ink:#fffaf4;
  --blue:      #316479;
  --green:     #3c705b;
  --red:       #a94439;
  --amber:     #a85e1b;
  --purple:    #665677;
  --teal:      #286a69;

  --radius:    5px;
  --radius-sm: 3px;
  --radius-lg: 7px;
  --shadow-1:  0 1px 2px rgba(32,41,39,.08);
  --shadow-2:  0 4px 14px rgba(32,41,39,.08);
  --shadow-3:  0 12px 38px rgba(32,41,39,.16);
  --ring:      0 0 0 3px rgba(183,101,36,.23);

  --maxw: 1180px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
h1,h2,h3,h4 { line-height: 1.2; margin: 0 0 .4em; letter-spacing: -.01em; }
h1 { font-size: clamp(1.65rem, 3.1vw, 2.45rem); font-weight: 720; }
h2 { font-size: clamp(1.2rem, 2.2vw, 1.55rem); font-weight: 680; }
h3 { font-size: 1.1rem; font-weight: 700; }
p { margin: 0 0 1em; }

.skip-link {
  position: fixed; left: 12px; top: -60px; z-index: 100;
  background: var(--accent); color: var(--accent-ink); padding: 10px 16px;
  border-radius: 10px; font-weight: 700; transition: top .2s;
}
.skip-link:focus { top: 12px; }

/* ---------------------------------------------------------------- topbar */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 12px 20px;
  display: flex; align-items: center; gap: 18px;
}
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 1.15rem; }
.brand-mark { display: grid; place-items: center; }
.brand-mark svg { background: var(--accent); border-radius: 3px; }
.brand-text b { color: var(--text); }
.brand-text span { color: var(--accent); }
.nav { display: flex; gap: 4px; margin-left: 6px; }
.nav a {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 14px; border-radius: 2px; font-weight: 600; font-size: .89rem;
  color: var(--text-2); transition: background .15s, color .15s;
}
.nav a:hover { background: var(--surface-2); color: var(--text); }
.nav a.active { background: var(--surface-3); color: var(--text); box-shadow: inset 0 0 0 1px var(--line); }

.nav-ico { font-size: .95rem; color: var(--accent); }
.topbar-tools { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.search-trigger {
  display: inline-flex; align-items: center; gap: 9px;
  background: var(--surface-2); border: 1px solid var(--line);
  padding: 9px 12px; border-radius: 11px; color: var(--text-3); font-size: .9rem;
  transition: border-color .15s, color .15s, background .15s;
}
.search-trigger:hover { border-color: var(--accent); color: var(--text-2); }
.search-trigger kbd {
  font-family: var(--mono); font-size: .72rem; padding: 2px 6px; border-radius: 6px;
  background: var(--surface-3); border: 1px solid var(--line); color: var(--text-3);
}
.theme-toggle {
  position: relative; width: 42px; height: 42px; border-radius: 11px;
  background: var(--surface-2); border: 1px solid var(--line); overflow: hidden;
}
.theme-toggle span { position: absolute; inset: 0; display: grid; place-items: center; transition: transform .35s, opacity .35s; }
[data-theme="dark"] .t-sun { transform: translateY(0) rotate(0); opacity: 1; }
[data-theme="dark"] .t-moon { transform: translateY(130%); opacity: 0; }
[data-theme="light"] .t-moon { transform: translateY(0); opacity: 1; }
[data-theme="light"] .t-sun { transform: translateY(-130%); opacity: 0; }

/* ---------------------------------------------------------------- app shell */
.app { max-width: var(--maxw); margin: 0 auto; padding: 30px 20px 90px; outline: none; }
.foot { border-top: 1px solid var(--line-soft); margin-top: 40px; }
.foot-inner { max-width: var(--maxw); margin: 0 auto; padding: 26px 20px 60px; color: var(--text-3); font-size: .86rem; }
.foot-fine { color: var(--text-3); opacity: .8; max-width: 70ch; }

/* ---------------------------------------------------------------- hero */
.hero {
  position: relative; overflow: hidden;
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  border-top: 4px solid var(--accent);
  background: var(--surface);
  padding: clamp(25px, 4vw, 44px);
  box-shadow: var(--shadow-2);
}
.service-hero { display:grid; grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr); gap:clamp(28px,5vw,70px); align-items:center; box-shadow:none; }
.service-hero-copy { max-width:680px; }
.service-hero h1 { max-width:16ch; font-size:clamp(2.05rem,3.5vw,3.15rem); letter-spacing:-.025em; }
.sample-ticket { background:#fffefa; color:#24302c; border:1px solid #c9c1b3; box-shadow:5px 6px 0 #ded8cc; padding:18px 20px; transform:rotate(1deg); font-size:.82rem; }
.ticket-top,.ticket-foot { display:flex; align-items:center; justify-content:space-between; color:#737b75; font:700 .66rem var(--mono); letter-spacing:.07em; }
.ticket-unit,.ticket-prompt { display:grid; gap:3px; margin:18px 0; }
.ticket-unit span,.ticket-prompt span,.ticket-fields span { color:#737b75; font:700 .62rem var(--mono); letter-spacing:.08em; }
.ticket-unit b { font:700 1.16rem var(--font); }
.ticket-prompt b { font:700 1.18rem/1.25 var(--font); max-width:24ch; }
.ticket-rule { border-top:1px dashed #c9c1b3; }
.ticket-fields { display:grid; grid-template-columns:1fr 1fr; gap:12px; margin:16px 0; }
.ticket-fields div { display:grid; gap:4px; }
.ticket-fields b { font-size:.8rem; }
.ticket-note { padding:10px 11px; background:#f1eee6; border-left:3px solid #b76524; color:#525d58; font-size:.78rem; }
.ticket-foot { padding-top:14px; margin-top:16px; border-top:1px solid #ded8cc; }
@media(max-width:760px){.service-hero{grid-template-columns:1fr}.sample-ticket{max-width:440px;transform:none}}

/* Service-bay presentation: quieter controls, editorial hierarchy, less card chrome. */
.service-hero { border-radius:4px; }
.hero-stats { gap:0; border-top:1px solid var(--line); }
.hero-stat { min-width:130px; padding:0 22px; border-right:1px solid var(--line); }
.hero-stat:first-child { padding-left:0; }
.hero-stat:last-child { border-right:0; }
.section-head { margin-top:38px; padding-bottom:11px; border-bottom:1px solid var(--line); }
.section-head h2 { font-size:1.18rem; font-weight:680; }
.system-title { padding-bottom:9px; border-bottom:1px solid var(--line); color:var(--text); letter-spacing:.04em; }
.tile-diagnose { border-radius:4px; box-shadow:none; }
.tile-diagnose .glyph { border-radius:2px; }
.tile-diagnose .go { color:var(--text-2); font-weight:600; }
.tile-diagnose:hover .go { color:var(--accent); }
.card { border-radius:4px; box-shadow:none; }
.card:hover { transform:none; }
.process-row { border-radius:0; }
.sample-ticket { transform:none; box-shadow:4px 4px 0 #ded8cc; }
.shop-status { border-radius:2px; }
.shop-pilot-ask { border-radius:2px; }
@media(max-width:640px){.hero-stats{gap:0}.hero-stat{min-width:0;padding:0 12px}.hero-stat b{font-size:1.2rem}.service-hero h1{font-size:2rem}}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 9px; font-weight: 700; font-size: .82rem;
  letter-spacing: .035em; text-transform: uppercase; color: var(--accent);
  background: transparent;
  border: 0; border-bottom: 1px solid var(--line); padding: 0 0 7px; border-radius: 0; margin-bottom: 18px;
}
.hero h1 { max-width: 18ch; font-weight:720; }
.hero p.lede { font-size: clamp(1rem, 1.6vw, 1.22rem); color: var(--text-2); max-width: 62ch; margin-bottom: 26px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 26px; margin-top: 34px; padding-top: 26px; border-top: 1px solid var(--line-soft); }
.hero-stat b { display: block; font-size: 1.45rem; font-weight: 700; color: var(--text); }
.hero-stat span { font-size: .82rem; color: var(--text-3); text-transform: uppercase; letter-spacing: .05em; }

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 17px; border-radius: 3px; font-weight: 700; font-size: .91rem;
  border: 1px solid transparent; transition: transform .12s, box-shadow .2s, background .15s, border-color .15s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: none; }
.btn-primary:hover { background: var(--accent-2); box-shadow: none; }
.btn-ghost { background: var(--surface-2); border-color: var(--line); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); }
.btn-sm { padding: 9px 14px; border-radius: 10px; font-size: .88rem; }

.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin: 46px 0 18px; }
.section-head h2 { margin: 0; }
.section-head .link { color: var(--accent); font-weight: 650; font-size: .92rem; }
.section-head .link:hover { text-decoration: underline; }

.bench-note { display:flex; align-items:center; gap:18px; margin:34px 0 6px; padding:13px 15px; background:var(--surface-2); border:1px solid var(--line); border-left:3px solid var(--accent); }
.bench-index { flex:none; color:var(--accent); font:700 .72rem var(--mono); letter-spacing:.06em; }
.bench-copy { flex:1; color:var(--text-2); font-size:.9rem; }
.bench-note a { flex:none; font-weight:700; font-size:.86rem; }
.shop-process { display:grid; border-top:1px solid var(--line); }
.process-row { display:flex; align-items:flex-start; gap:18px; padding:17px 15px; border-bottom:1px solid var(--line); color:var(--text); background:var(--surface); }
.process-row:hover { background:var(--surface-2); }
.process-no { flex:none; color:var(--accent); font:700 .8rem var(--mono); padding-top:2px; }
.process-main { flex:1; display:grid; grid-template-columns:minmax(170px,.7fr) 1.3fr; gap:18px; }
.process-main b { font-size:.96rem; }
.process-main span { color:var(--text-2); font-size:.9rem; }
.process-arrow { color:var(--text-3); }
.shop-page { max-width:900px; margin:0 auto; }
.shop-kicker { color:var(--accent); font:700 .76rem var(--mono); letter-spacing:.09em; }
.shop-page h1 { margin:13px 0 16px; max-width:24ch; }
.shop-lede { max-width:70ch; font-size:1.12rem; color:var(--text-2); }
.shop-status { display:grid; gap:4px; margin:23px 0 37px; padding:14px 16px; background:#eee9df; border:1px solid var(--line); border-left:3px solid var(--amber); }
.shop-status span { color:var(--text-2); font-size:.89rem; }
.shop-section-title { margin:37px 0 13px; font-size:1.06rem; text-transform:uppercase; letter-spacing:.045em; }
.shop-process-page .process-row { padding:20px 16px; }
.shop-guardrails { display:grid; grid-template-columns:repeat(2,1fr); gap:0 25px; border-top:1px solid var(--line); }
.shop-guardrails p { padding:13px 0; border-bottom:1px solid var(--line); color:var(--text-2); margin:0; }
.shop-guardrails p::before { content:"\2014  "; color:var(--accent); }
.shop-pilot-ask { display:flex; align-items:center; gap:30px; margin-top:38px; padding:24px; background:var(--surface); border:1px solid var(--line); border-top:3px solid var(--accent); }
.shop-pilot-ask h2 { margin:8px 0; }
.shop-pilot-ask p { max-width:62ch; color:var(--text-2); margin:0; }
.shop-pilot-ask .btn { flex:none; }
.shop-footnote { margin-top:9px; color:var(--text-3); font-size:.78rem; }
.training-strip { display:flex; justify-content:space-between; align-items:center; gap:20px; margin:27px 0 5px; padding:16px 15px; border:1px solid var(--line); background:var(--surface); }
.training-strip div { display:grid; gap:3px; }
.training-strip b { font-size:.94rem; }
.training-strip div span:last-child { color:var(--text-2); font-size:.84rem; }
.video-practice { margin-top:32px; border-top:1px solid var(--line); }
.video-row { display:grid; grid-template-columns:70px 1fr; gap:18px; padding:24px 12px; border-bottom:1px solid var(--line); background:var(--surface); }
.video-index { color:var(--accent); font:700 1rem var(--mono); }
.video-info h2 { margin:6px 0; font-size:1.25rem; }
.video-info p { max-width:72ch; color:var(--text-2); }
.video-owner,.planned-label { color:var(--text-3); font:700 .69rem var(--mono); letter-spacing:.07em; text-transform:uppercase; }
.planned-label { display:inline-block; padding:5px 8px; border:1px solid var(--line); }
.video-info .btn { margin-top:3px; }

/* Clear, task-first starting point. */
.start-hero { display:block; padding:clamp(28px,5vw,56px); }
.start-hero h1 { max-width:22ch; margin:12px 0; font-size:clamp(2.2rem,5vw,3.6rem); }
.start-hero .lede { max-width:68ch; margin:0; }
.start-journeys { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:14px; margin-top:24px; }
.journey-card { display:flex; min-height:230px; flex-direction:column; align-items:flex-start; padding:22px; background:var(--surface); border:1px solid var(--line); border-top:3px solid var(--line); transition:border-color .15s,background .15s; }
.journey-card:hover { background:var(--surface-2); border-color:var(--accent); }
.journey-primary { border-top-color:var(--accent); }
.journey-number { color:var(--accent); font:700 .72rem var(--mono); letter-spacing:.07em; }
.journey-card h2 { margin:24px 0 8px; font-size:1.25rem; }
.journey-card p { flex:1; color:var(--text-2); font-size:.94rem; }
.journey-cta { color:var(--accent); font-weight:700; }
.start-more { margin-top:40px; }
.start-more h2 { padding-bottom:12px; border-bottom:1px solid var(--line); font-size:1.05rem; }
.start-more-links { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:12px; }
.start-more-links a { display:grid; gap:4px; padding:14px 15px; border:1px solid var(--line); background:var(--surface); font-weight:700; }
.start-more-links a:hover { border-color:var(--accent); }
.start-more-links span { color:var(--text-3); font-size:.8rem; font-weight:400; }
.preview-boundary { max-width:90ch; margin:26px 0 0; padding:12px 14px; border-left:3px solid var(--line); color:var(--text-3); font-size:.83rem; }
.diagnose-start { display:flex; align-items:center; justify-content:space-between; gap:20px; margin:20px 0 10px; padding:18px; border:1px solid var(--line); border-left:3px solid var(--accent); background:var(--surface); }
.diagnose-start h2 { margin:5px 0; font-size:1.1rem; }
.diagnose-start p { margin:0; color:var(--text-2); }
.diagnose-code-link { margin:16px 0 28px; color:var(--text-2); font-size:.9rem; }
.diagnose-code-link a { color:var(--accent); font-weight:700; }
.diagnose-systems-title { margin:22px 0 10px; font-size:1.15rem; }
@media(max-width:760px) { .start-journeys { grid-template-columns:1fr; } .journey-card { min-height:0; } .journey-card h2 { margin-top:15px; } .start-more-links { grid-template-columns:1fr; } .diagnose-start { align-items:flex-start; flex-direction:column; } }

/* ---------------------------------------------------------------- cards */
.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  position: relative; display: block;
  background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; transition: transform .14s, border-color .14s, box-shadow .2s;
}
.card:hover { border-color: var(--accent); box-shadow: var(--shadow-2); }
.card-kicker { font-size: .74rem; text-transform: uppercase; letter-spacing: .07em; color: var(--text-3); font-weight: 700; }
.card h3 { margin: 8px 0 6px; font-size: 1.04rem; }
.card p { color: var(--text-2); font-size: .9rem; margin: 0; }
.card .glyph { font-size: 1.5rem; line-height: 1; margin-bottom: 6px; display: block; }

.tile-diagnose {
  display: flex; flex-direction: column; gap: 8px; min-height: 132px; justify-content: space-between;
  box-shadow:none;
}
.tile-diagnose .glyph {
  width: 38px; height: 38px; border-radius: 3px; display: grid; place-items: center;
  font:700 .72rem var(--mono); background: var(--surface-3);
  border: 1px solid var(--line); color: var(--accent);
}
.tile-diagnose h3 { margin: 0; }
.tile-diagnose .go { color: var(--accent); font-weight: 700; font-size: .86rem; display: inline-flex; align-items: center; gap: 7px; }
.tile-diagnose:hover .go { gap: 11px; }

/* ---------------------------------------------------------------- topic list */
.system-block { margin-bottom: 34px; }
.system-title { display: flex; align-items: center; gap: 12px; margin: 0 0 14px; font-size: .8rem; letter-spacing: .09em; text-transform: uppercase; color: var(--text-3); font-weight: 700; }
.system-title .dot { width: 9px; height: 9px; border-radius: 3px; }
.topic-card { display: flex; flex-direction: column; gap: 9px; min-height: 118px; }
.topic-card .bar { width: 34px; height: 4px; border-radius: 3px; }
.topic-card h3 { margin: 0; font-size: 1rem; }
.topic-card .meta { display: flex; gap: 8px; flex-wrap: wrap; margin-top: auto; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; font-size: .72rem; font-weight: 650;
  padding: 3px 9px; border-radius: 999px; background: var(--surface-3); border: 1px solid var(--line); color: var(--text-2);
}
.chip.lib { background: color-mix(in srgb, var(--purple) 16%, transparent); border-color: color-mix(in srgb, var(--purple) 34%, transparent); color: var(--purple); }
.chip.code { background: color-mix(in srgb, var(--blue) 14%, transparent); border-color: color-mix(in srgb, var(--blue) 30%, transparent); color: var(--blue); }
.chip.tree { background: color-mix(in srgb, var(--green) 14%, transparent); border-color: color-mix(in srgb, var(--green) 30%, transparent); color: var(--green); }

/* ---------------------------------------------------------------- breadcrumbs */
.crumbs { display: flex; align-items: center; gap: 8px; color: var(--text-3); font-size: .86rem; margin-bottom: 18px; flex-wrap: wrap; }
.crumbs a:hover { color: var(--accent); }
.crumbs .sep { opacity: .5; }
.crumbs .here { color: var(--text); font-weight: 650; }

/* ---------------------------------------------------------------- topic reader */
.reader { display: grid; grid-template-columns: minmax(0,1fr) 280px; gap: 40px; align-items: start; }
@media (max-width: 940px) { .reader { grid-template-columns: 1fr; } .reader-aside { display: none; } }
.reader-head { margin-bottom: 22px; }
.reader-head .kicker { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: .8rem; letter-spacing: .05em; text-transform: uppercase; color: var(--text-3); }
.reader-head h1 { margin: 10px 0 8px; }
.reader-head .lede { color: var(--text-2); font-size: 1.05rem; margin: 0; }
.prose { max-width: 74ch; }

.block { margin: 0 0 14px; }
.block-h {
  display: flex; align-items: center; gap: 12px;
  margin: 34px 0 14px; padding-top: 20px; border-top: 1px solid var(--line-soft);
  font-size: 1.16rem; font-weight: 750;
}
.block-h::before { content: ""; width: 5px; height: 20px; border-radius: 3px; background: var(--accent); }
.block-h:first-child { margin-top: 0; border-top: 0; padding-top: 0; }
.block-text { color: var(--text); font-size: 1.02rem; }
.block-text.spec { font-size: .98rem; }
.block-tip, .block-warn {
  display: flex; gap: 12px; padding: 14px 16px; border-radius: 12px; font-size: .98rem;
}
.block-tip { background: color-mix(in srgb, var(--green) 9%, var(--surface-2)); border: 1px solid color-mix(in srgb, var(--green) 26%, transparent); }
.block-tip .ico { color: var(--green); font-weight: 800; }
.block-warn { background: color-mix(in srgb, var(--amber) 10%, var(--surface-2)); border: 1px solid color-mix(in srgb, var(--amber) 30%, transparent); }
.block-warn .ico { color: var(--amber); font-weight: 800; }
.block-tip .txt, .block-warn .txt { color: var(--text); }

.check {
  display: flex; gap: 13px; align-items: flex-start; padding: 12px 14px;
  background: var(--surface); border: 1px solid var(--line); border-radius: 11px;
  cursor: pointer; transition: border-color .14s, background .14s; user-select: none;
}
.check:hover { border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); }
.check .box {
  flex: none; width: 22px; height: 22px; margin-top: 1px; border-radius: 7px;
  border: 2px solid var(--line); display: grid; place-items: center;
  color: transparent; font-weight: 800; font-size: .8rem; transition: all .14s;
}
.check .txt { font-size: .98rem; color: var(--text); }
.check.done { background: color-mix(in srgb, var(--green) 8%, var(--surface)); border-color: color-mix(in srgb, var(--green) 34%, transparent); }
.check.done .box { background: var(--green); border-color: var(--green); color: #04140b; }
.check.done .txt { color: var(--text-2); text-decoration: line-through; text-decoration-color: color-mix(in srgb, var(--green) 60%, transparent); }

.code-card {
  border: 1px solid var(--line); border-left: 4px solid var(--blue);
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  border-radius: 13px; overflow: hidden;
}
.code-card summary {
  list-style: none; cursor: pointer; padding: 14px 16px; display: flex; flex-wrap: wrap; gap: 10px 14px; align-items: center;
}
.code-card summary::-webkit-details-marker { display: none; }
.code-card .code-tag {
  flex: none; font-family: var(--mono); font-weight: 800; font-size: 1rem;
  min-width: 52px; text-align: center; padding: 6px 10px; border-radius: 9px;
  background: color-mix(in srgb, var(--blue) 16%, transparent); color: var(--blue);
  border: 1px solid color-mix(in srgb, var(--blue) 32%, transparent);
}
.code-card .code-mean { font-weight: 650; flex: 1 1 200px; min-width: 0; }
.code-card .code-tag { max-width: calc(100% - 40px); }
.code-card .chev { margin-left: auto; color: var(--text-3); transition: transform .2s; }
.code-card[open] .chev { transform: rotate(90deg); }
.code-card .code-do { padding: 0 16px 16px 82px; color: var(--text-2); font-size: .96rem; }
.code-card .code-do .lbl { display: block; font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-3); font-weight: 700; margin-bottom: 4px; }
.code-card .do-text { display: block; margin-bottom: 10px; }

.tree-cta {
  display: flex; align-items: center; gap: 16px; padding: 18px;
  border-radius: 14px; border: 1px solid color-mix(in srgb, var(--green) 30%, var(--line));
  background: linear-gradient(180deg, color-mix(in srgb, var(--green) 10%, var(--surface)), var(--surface-2));
}
.tree-cta .glyph { flex: none; width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; font-size: 1.3rem; background: color-mix(in srgb, var(--green) 16%, var(--surface-3)); color: var(--green); }
.tree-cta .t { flex: 1; }
.tree-cta .t b { display: block; }
.tree-cta .t span { color: var(--text-2); font-size: .88rem; }

.reader-aside { position: sticky; top: 82px; }
.aside-card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 16px; margin-bottom: 14px; }
.aside-card h4 { font-size: .76rem; text-transform: uppercase; letter-spacing: .07em; color: var(--text-3); margin-bottom: 10px; }
.toc a { display: block; padding: 6px 0; color: var(--text-2); font-size: .9rem; border-left: 2px solid transparent; padding-left: 10px; }
.toc a:hover, .toc a.active { color: var(--accent); border-left-color: var(--accent); }
.progress-ring { display: flex; align-items: center; gap: 14px; }
.progress-ring .num { font-size: 1.5rem; font-weight: 800; }
.progress-ring .lbl { font-size: .84rem; color: var(--text-3); }
.meter { height: 7px; border-radius: 4px; background: var(--surface-3); overflow: hidden; margin-top: 10px; }
.meter > i { display: block; height: 100%; background: linear-gradient(90deg, var(--green), var(--accent)); transition: width .3s; }

/* ---------------------------------------------------------------- guided wizard */
.wizard { max-width: 760px; margin: 0 auto; }
.wiz-top { display: flex; align-items: center; gap: 14px; margin-bottom: 22px; }
.wiz-progress { flex: 1; }
.wiz-rail { height: 5px; border-radius: 3px; background: var(--surface-3); overflow: hidden; }
.wiz-rail > i { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width .3s; }
.wiz-path { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.wiz-path .fact { font-size: .74rem; font-weight: 650; padding: 4px 10px; border-radius: 999px; background: color-mix(in srgb, var(--accent) 12%, var(--surface-2)); border: 1px solid color-mix(in srgb, var(--accent) 26%, transparent); color: var(--accent-2); }
.wiz-card {
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(22px, 3vw, 34px);
  box-shadow: none;
}
.wiz-step-kicker { font-size: .78rem; text-transform: uppercase; letter-spacing: .07em; color: var(--accent); font-weight: 750; margin-bottom: 10px; }
.wiz-q { font-size: clamp(1.3rem, 2.6vw, 1.7rem); font-weight: 800; margin: 0 0 12px; }
.wiz-body { color: var(--text-2); font-size: 1.04rem; }
.wiz-callout { margin-top: 16px; padding: 14px 16px; border-radius: 12px; font-size: .94rem; display: flex; gap: 11px; }
.wiz-callout.tool { background: var(--surface-3); border: 1px solid var(--line); }
.wiz-callout.expect { background: color-mix(in srgb, var(--blue) 9%, var(--surface-2)); border: 1px solid color-mix(in srgb, var(--blue) 26%, transparent); }
.wiz-callout.expect .ico { color: var(--blue); }
.wiz-callout.note { background: color-mix(in srgb, var(--amber) 10%, var(--surface-2)); border: 1px solid color-mix(in srgb, var(--amber) 28%, transparent); }
.wiz-callout.note .ico { color: var(--amber); }
.wiz-callout .ico { font-weight: 800; }
.wiz-callout .lbl { font-weight: 750; color: var(--text); margin-right: 4px; }
.choices { display: grid; gap: 11px; margin-top: 24px; }
.choice {
  display: flex; align-items: center; gap: 14px; text-align: left;
  padding: 16px 18px; border-radius: 4px; border: 1px solid var(--line);
  background: var(--surface); transition: transform .12s, border-color .14s, background .14s;
}
.choice:hover { border-color: var(--accent); background: var(--surface-2); }
.choice .arrow { margin-left: auto; color: var(--text-3); transition: transform .14s; }
.choice:hover .arrow { color: var(--accent); transform: translateX(4px); }
.choice .ct { flex: 1; }
.choice .ct b { display: block; font-weight: 700; }
.choice .ct span { color: var(--text-2); font-size: .88rem; }
.choice.result {
  border-color: color-mix(in srgb, var(--green) 34%, var(--line));
  background: linear-gradient(90deg, color-mix(in srgb, var(--green) 10%, var(--surface)), var(--surface));
}
.choice.result .glyph { width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center; background: color-mix(in srgb, var(--green) 16%, transparent); color: var(--green); font-size: 1.1rem; }

.result-card { border-radius: var(--radius); padding: clamp(22px, 3vw, 34px); border: 1px solid var(--line); box-shadow: none; }
.result-card.ok { background: linear-gradient(180deg, color-mix(in srgb, var(--green) 12%, var(--surface)), var(--surface-2)); border-color: color-mix(in srgb, var(--green) 34%, transparent); }
.result-card.fault { background: linear-gradient(180deg, color-mix(in srgb, var(--amber) 13%, var(--surface)), var(--surface-2)); border-color: color-mix(in srgb, var(--amber) 36%, transparent); }
.result-card.stop { background: linear-gradient(180deg, color-mix(in srgb, var(--red) 14%, var(--surface)), var(--surface-2)); border-color: color-mix(in srgb, var(--red) 40%, transparent); }
.result-badge { display: inline-flex; align-items: center; gap: 9px; font-weight: 750; font-size: .82rem; text-transform: uppercase; letter-spacing: .06em; padding: 6px 13px; border-radius: 999px; margin-bottom: 16px; }
.result-card.ok .result-badge { background: color-mix(in srgb, var(--green) 20%, transparent); color: var(--green); }
.result-card.fault .result-badge { background: color-mix(in srgb, var(--amber) 20%, transparent); color: var(--amber); }
.result-card.stop .result-badge { background: color-mix(in srgb, var(--red) 22%, transparent); color: var(--red); }
.result-card h2 { margin-bottom: 12px; }
.result-card .field { margin-top: 16px; }
.result-card .field .lbl { font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-3); font-weight: 750; margin-bottom: 5px; }
.result-card .field .val { color: var(--text); }
.wiz-actions { display: flex; gap: 12px; margin-top: 22px; flex-wrap: wrap; }

/* ---------------------------------------------------------------- search */
.search-overlay { position: fixed; inset: 0; z-index: 80; background: color-mix(in srgb, #000 55%, transparent); backdrop-filter: blur(4px); display: flex; align-items: flex-start; justify-content: center; padding: 8vh 16px; }
.search-overlay[hidden] { display: none; }
.search-panel { width: min(680px, 100%); background: var(--surface); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow-3); overflow: hidden; }
.search-field { display: flex; align-items: center; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--line-soft); font-size: 1.15rem; color: var(--text-3); }
.search-field input { flex: 1; border: 0; background: transparent; color: var(--text); font-size: 1.1rem; outline: none; }
.search-close { background: var(--surface-3); border: 1px solid var(--line); border-radius: 8px; padding: 5px 10px; font-size: .8rem; color: var(--text-2); }
.search-results { max-height: 58vh; overflow: auto; padding: 8px; }
.sr-group { font-size: .72rem; text-transform: uppercase; letter-spacing: .07em; color: var(--text-3); font-weight: 750; padding: 12px 12px 6px; }
.sr-item { display: flex; gap: 12px; align-items: center; padding: 12px 12px; border-radius: 11px; width: 100%; text-align: left; }
.sr-item:hover, .sr-item.active { background: var(--surface-2); }
.sr-item .ico { width: 34px; height: 34px; flex: none; border-radius: 9px; display: grid; place-items: center; background: var(--surface-3); color: var(--accent); }
.sr-item .tt { flex: 1; min-width: 0; }
.sr-item .tt b { display: block; font-weight: 650; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sr-item .tt span { color: var(--text-3); font-size: .82rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; }
.sr-item mark { background: color-mix(in srgb, var(--accent) 30%, transparent); color: inherit; border-radius: 3px; padding: 0 2px; }
.sr-empty { padding: 30px; text-align: center; color: var(--text-3); }

/* ---------------------------------------------------------------- misc */
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 22px; align-items: center; }
.chip-btn { padding: 8px 14px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface-2); color: var(--text-2); font-weight: 600; font-size: .88rem; transition: all .14s; }
.chip-btn:hover { border-color: var(--accent); color: var(--text); }
.chip-btn.active { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.search-inline { flex: 1; min-width: 200px; display: flex; align-items: center; gap: 10px; background: var(--surface-2); border: 1px solid var(--line); border-radius: 11px; padding: 10px 14px; color: var(--text-3); }
.search-inline input { flex: 1; border: 0; background: transparent; outline: none; color: var(--text); font-size: .95rem; }
.empty { text-align: center; color: var(--text-3); padding: 60px 20px; }
.count-line { color: var(--text-3); font-size: .88rem; margin-bottom: 16px; }
.pill-row { display: flex; gap: 8px; flex-wrap: wrap; }

.fade-in { animation: fade .35s ease both; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }

@media (max-width: 780px) {
  .nav a { padding: 9px 12px; }
  .grid.cols-3, .grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .search-trigger-text { display: none; }
  .search-trigger kbd { display: none; }
  .code-card .code-do { padding-left: 16px; }
}
/* Header: brand + nav + tools stop fitting on one row well before 520px.
   Between ~521px and ~620px the single row overflowed (horizontal scroll),
   so the compact two-row layout starts at 640px instead. */
@media (max-width: 640px) {
  .topbar-inner { padding: 8px 8px; gap: 4px; flex-wrap: wrap; }
  .brand { font-size: .91rem; gap: 5px; flex:none; }
  .brand-mark svg { width: 23px; height: 23px; }
  .nav { order: 3; flex: 1 0 100%; width:100%; margin:4px 0 0; padding-top:6px; border-top:1px solid var(--line-soft); display:grid; grid-template-columns:repeat(5,minmax(0,1fr)); gap:3px; }
  .nav-label { display:inline; }
  .nav a { min-width:0; justify-content:center; gap:6px; padding:8px 4px; border-radius:2px; font-size:.82rem; white-space:nowrap; }
  .nav-ico { font:700 .62rem var(--mono); }
  .topbar-tools { gap:4px; flex:none; }
  .theme-toggle { width: 34px; height: 34px; }
  .search-trigger { padding: 7px 8px; }
}
@media (max-width: 520px) {
  .grid.cols-2, .grid.cols-3, .grid.cols-4 { grid-template-columns: 1fr; }
  .hero-stats { gap: 18px; }
  .app { padding: 20px 14px 70px; }
}

/* ============================================================================
   Monetization: Pro, pricing, parts, AI, maintenance, feedback
   ========================================================================== */
.pro-link {
  display: inline-flex; align-items: center; gap: 7px; font-weight: 700; font-size: .88rem;
  padding: 9px 13px; border-radius: 999px; color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 34%, transparent);
  transition: all .14s;
}
.pro-link:hover { background: color-mix(in srgb, var(--accent) 20%, transparent); }
.pro-link.is-pro { color: var(--green); background: color-mix(in srgb, var(--green) 12%, transparent); border-color: color-mix(in srgb, var(--green) 34%, transparent); }

.pro-band {
  display: flex; align-items: center; gap: 24px; margin-top: 46px; padding: clamp(24px, 4vw, 40px);
  border-radius: var(--radius-lg); border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line));
  background:
    radial-gradient(600px 260px at 90% 0%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 60%),
    linear-gradient(180deg, var(--surface), var(--bg-2));
  box-shadow: var(--shadow-2);
}
.pro-band-text { flex: 1; }
.pro-band-text h2 { margin: 8px 0 8px; }
.pro-band-text p { color: var(--text-2); max-width: 60ch; }
.pro-band-art { font-size: 4rem; opacity: .9; }
@media (max-width: 640px) { .pro-band-art { display: none; } }

/* paywall */
.paywall {
  border: 1px solid color-mix(in srgb, var(--accent) 32%, var(--line)); border-radius: var(--radius);
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 8%, var(--surface)), var(--surface-2));
  padding: clamp(20px, 3vw, 30px); margin: 22px 0;
}
.paywall-badge { display: inline-flex; align-items: center; gap: 8px; font-weight: 750; font-size: .78rem; letter-spacing: .05em; text-transform: uppercase; color: var(--accent); background: color-mix(in srgb, var(--accent) 16%, transparent); padding: 5px 12px; border-radius: 999px; }
.paywall h2 { margin: 14px 0 8px; font-size: 1.3rem; }
.paywall-lede { color: var(--text-2); max-width: 60ch; }
.paywall-list { list-style: none; padding: 0; margin: 14px 0; display: grid; gap: 8px; }
.paywall-list li { padding-left: 26px; position: relative; color: var(--text); }
.paywall-list li::before { content: "\2713"; position: absolute; left: 0; color: var(--green); font-weight: 800; }
.paywall-fine { font-size: .78rem; color: var(--text-3); margin: 10px 0 0; }
.paywall-preview { opacity: .8; margin-bottom: 4px; }

/* parts */
.parts { margin: 30px 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; }
.parts-head { display: flex; gap: 12px; align-items: flex-start; padding: 16px 18px; border-bottom: 1px solid var(--line-soft); background: var(--surface-2); }
.parts-ico { font-size: 1.4rem; }
.parts-sub { display: block; color: var(--text-3); font-size: .82rem; margin-top: 2px; max-width: 70ch; }
.part-row { display: flex; align-items: center; gap: 14px; padding: 13px 18px; border-bottom: 1px solid var(--line-soft); }
.part-row:last-child { border-bottom: 0; }
.part-info { flex: 1; min-width: 0; }
.part-info b { display: block; }
.part-brand { color: var(--text-3); font-size: .84rem; }
.part-acts { flex: none; }

/* AI panel */
.ai-panel { background: var(--surface); border: 1px solid color-mix(in srgb, var(--purple) 30%, var(--line)); border-radius: 14px; padding: 14px; }
.ai-head { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.ai-ico { color: var(--purple); font-size: 1.1rem; }
.ai-note { margin-left: auto; font-size: .68rem; font-weight: 750; text-transform: uppercase; letter-spacing: .05em; color: var(--purple); background: color-mix(in srgb, var(--purple) 16%, transparent); padding: 3px 8px; border-radius: 999px; }
.ai-log { max-height: 260px; overflow: auto; display: flex; flex-direction: column; gap: 10px; margin-bottom: 10px; }
.ai-empty { color: var(--text-3); font-size: .86rem; }
.ai-empty b { color: var(--text-2); }
.ai-msg { display: flex; flex-direction: column; gap: 3px; }
.ai-msg .who { font-size: .68rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-3); font-weight: 750; }
.ai-msg .say { font-size: .9rem; color: var(--text); background: var(--surface-2); border: 1px solid var(--line-soft); border-radius: 10px; padding: 9px 12px; white-space: pre-wrap; }
.ai-msg.user .say { background: color-mix(in srgb, var(--blue) 10%, var(--surface-2)); border-color: color-mix(in srgb, var(--blue) 24%, transparent); }
.ai-row { display: flex; gap: 8px; }
.ai-input { flex: 1; width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--surface-2); color: var(--text); font-size: .92rem; outline: none; }
.ai-input:focus { border-color: var(--accent); box-shadow: var(--ring); }
.ai-fine { font-size: .7rem; color: var(--text-3); margin: 10px 0 0; }

/* pricing */
.price-grid { margin-top: 26px; align-items: stretch; }
.price-card { display: flex; flex-direction: column; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.price-card.featured { border-color: color-mix(in srgb, var(--accent) 44%, var(--line)); background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 8%, var(--surface)), var(--surface)); box-shadow: var(--shadow-2); }
.price-name { display: flex; align-items: center; gap: 10px; font-weight: 750; font-size: 1.05rem; }
.price-tag { font-size: .68rem; text-transform: uppercase; letter-spacing: .05em; color: var(--accent-ink); background: var(--accent); padding: 3px 8px; border-radius: 999px; font-weight: 750; }
.price-amt { margin: 12px 0 16px; display: flex; align-items: baseline; gap: 7px; }
.price-amt b { font-size: 2.2rem; font-weight: 800; }
.price-amt span { color: var(--text-3); font-size: .88rem; }
.price-list { list-style: none; padding: 0; margin: 0 0 20px; display: grid; gap: 9px; flex: 1; }
.price-list li { padding-left: 24px; position: relative; font-size: .92rem; color: var(--text-2); }
.price-list li::before { content: "\2713"; position: absolute; left: 0; color: var(--green); font-weight: 800; }
.tech-band { display: flex; align-items: center; gap: 20px; padding: 22px 24px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface-2); }
.tech-band h3 { margin-bottom: 6px; }
.tech-band p { color: var(--text-2); max-width: 60ch; }
.tech-ico { font-size: 2.6rem; }
@media (max-width: 640px) { .tech-ico { display: none; } }

/* maintenance */
.maint-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 20px; }
@media (max-width: 720px) { .maint-grid { grid-template-columns: 1fr; } }
.maint-card { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); padding: 18px; }
.maint-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.maint-season { font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; font-weight: 750; color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, transparent); padding: 4px 10px; border-radius: 999px; }
.maint-when { font-size: .78rem; color: var(--text-3); }
.maint-card h3 { margin: 12px 0 12px; font-size: 1.05rem; }
.maint-steps { display: grid; gap: 8px; }

/* feedback */
.feedback { margin-top: 26px; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface-2); }
.feedback-q { display: block; margin-bottom: 12px; }
.feedback-btns { display: flex; gap: 10px; flex-wrap: wrap; }
.feedback-thanks b { display: block; margin-bottom: 4px; }
.feedback-thanks span { color: var(--text-2); font-size: .9rem; display: block; margin-bottom: 10px; }

/* ---------------------------------------------------------------- r10: home, course, cases */
.site-banner { background:#202927; color:#f3f1ec; text-align:center; font-size:.88rem; padding:9px 14px; }
.site-banner a { color:#f3c58f; text-decoration:underline; text-underline-offset:3px; }
.preview-flag { display:none; }
.is-preview .preview-flag { display:block; background:#f4e0b8; color:#4a3410; text-align:center; font-size:.85rem; padding:7px 12px; border-bottom:1px solid #d8b878; }
.is-preview .preview-flag a { text-decoration:underline; font-weight:700; }

.home { max-width:1080px; margin:0 auto; }
.home-hero { display:grid; grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr); gap:clamp(24px,4vw,56px); align-items:start; padding:clamp(10px,3vw,34px) 0 10px; }
.home-eyebrow { display:inline-block; color:var(--accent); font-weight:700; font-size:.86rem; margin-bottom:14px; }
.home-hero h1 { font-size:clamp(2.1rem,5vw,3.5rem); line-height:1.04; letter-spacing:-.03em; margin:0 0 18px; max-width:15ch; }
.home-sub { font-size:1.12rem; color:var(--text-2); max-width:44ch; line-height:1.55; }
.home-actions { display:flex; flex-wrap:wrap; gap:10px; margin-top:24px; }
.home-demo { background:var(--surface); border:1px solid var(--line); border-radius:6px; padding:18px; box-shadow:0 1px 0 var(--line); }
.demo-label { font-weight:800; font-size:1rem; }
.demo-prompt { color:var(--text-2); font-size:.93rem; margin:6px 0 12px; }
.home-h2 { font-size:1.35rem; margin:56px 0 18px; }
.home-what { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:1px; background:var(--line); border:1px solid var(--line); }
.what-item { background:var(--surface); padding:20px 22px; }
.what-num { color:var(--accent); font:700 .8rem var(--mono); }
.what-item h3 { margin:8px 0 6px; font-size:1.08rem; }
.what-item p { margin:0; color:var(--text-2); }
.home-who { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px; }
.who-item { border-top:3px solid var(--text); padding-top:12px; }
.who-item b { font-size:1.02rem; }
.who-item p { color:var(--text-2); margin:6px 0 0; }
.home-note { margin:56px 0 0; padding:20px 22px; background:#efe8da; border-left:4px solid var(--accent); }
.home-note h2 { font-size:1.15rem; margin:0 0 6px; }
.home-note p { color:var(--text-2); max-width:62ch; }
.home-close { margin:44px 0 0; padding:30px 26px; background:#202927; color:#f3f1ec; border-radius:6px; }
.home-close h2 { margin:0 0 6px; font-size:1.5rem; }
.home-close p { color:#c9ccc4; margin:0 0 18px; }
.home-fine { margin:22px 0 0; color:var(--text-3); font-size:.8rem; max-width:80ch; }
.shop-status-line { margin:20px 0 0; color:var(--text-2); font-size:.92rem; }

.course-shell { max-width:820px; margin:0 auto; }
.page-head h1 { font-size:clamp(1.8rem,4vw,2.6rem); margin:6px 0 8px; }
.page-head p { color:var(--text-2); font-size:1.05rem; max-width:60ch; }
.head-actions { display:flex; flex-wrap:wrap; gap:10px; margin:18px 0; }
.progress-line { display:grid; gap:6px; max-width:420px; color:var(--text-3); font-size:.85rem; }
.course-rail { height:7px; background:var(--surface-3); border:1px solid var(--line); overflow:hidden; }
.course-rail i { display:block; height:100%; background:var(--green); }
.module-list { margin-top:28px; display:grid; gap:20px; }
.module { border:1px solid var(--line); background:var(--surface); }
.module-title { display:flex; align-items:center; gap:12px; padding:13px 16px; border-bottom:1px solid var(--line-soft); }
.module-title h2 { margin:0; font-size:1.05rem; flex:1; }
.module-num { width:26px; height:26px; display:grid; place-items:center; background:var(--text); color:var(--bg); font:700 .8rem var(--mono); }
.module-count { color:var(--text-3); font:600 .8rem var(--mono); }
.lesson-row { display:flex; align-items:center; gap:12px; padding:12px 16px; border-bottom:1px solid var(--line-soft); }
.lesson-row:last-child { border-bottom:0; }
.lesson-row:hover { background:var(--surface-2); }
.lesson-mark { width:24px; color:var(--text-3); font:600 .8rem var(--mono); text-align:center; }
.lesson-row.is-done .lesson-mark { color:var(--green); font-weight:800; }
.lesson-name { flex:1; font-weight:600; }
.tag { font-size:.7rem; padding:2px 7px; border:1px solid var(--line); color:var(--text-2); }
.lesson-go { color:var(--text-3); font-size:1.2rem; }
.side-links { display:flex; flex-wrap:wrap; gap:8px; margin-top:22px; }

.lesson-count { color:var(--text-3); font-size:.85rem; }
.lesson h1 { font-size:clamp(1.7rem,4vw,2.3rem); margin:4px 0 12px; }
.lesson-lede { font-size:1.15rem; line-height:1.55; color:var(--text); }
.lesson-points { padding-left:20px; margin:16px 0; }
.lesson-points li { margin:8px 0; line-height:1.55; }
.numbers-box { margin:18px 0; padding:14px 16px; background:var(--surface); border:1px solid var(--line); }
.numbers-box dl, .cheat dl { display:grid; grid-template-columns:minmax(6rem,1fr) auto; gap:6px 18px; margin:10px 0 0; }
.numbers-box dt, .cheat dt { color:var(--text-2); }
.numbers-box dd, .cheat dd { margin:0; font-family:var(--mono); font-weight:700; text-align:right; }
/* Phone: stack each label over its value. A two-column key/value row squeezes the
   label to 0px on narrow screens, which ran the label and value text together. */
@media (max-width:520px) {
  .numbers-box dl, .cheat dl { grid-template-columns:minmax(0,1fr); gap:2px; }
  .numbers-box dt, .cheat dt { margin-top:10px; }
  .numbers-box dd, .cheat dd { text-align:left; }
}
.shop-tip { margin:18px 0; padding:12px 14px; background:#efe8da; border-left:4px solid var(--accent); }
.quick-check { margin:28px 0 0; padding:20px; background:var(--surface); border:1px solid var(--line); border-top:3px solid var(--text); }
.quick-check .kicker { color:var(--accent); font-weight:700; font-size:.8rem; }
.quick-check h2 { font-size:1.15rem; margin:6px 0 14px; }
.choices-list { display:grid; gap:8px; }
.choice-btn { text-align:left; padding:13px 14px; border:1px solid var(--line); background:var(--surface-2); color:var(--text); font-size:.97rem; border-radius:4px; }
.choice-btn:hover:not(:disabled) { border-color:var(--text); }
.choice-btn.right { border-color:var(--green); background:#e3eee7; }
.choice-btn.wrong { border-color:var(--red); background:#f4e2df; }
.choice-btn:disabled { cursor:default; }
.check-fb { margin:12px 0 0; }
.check-fb.right { color:var(--green); font-weight:600; }
.check-fb.wrong { color:var(--red); font-weight:600; }
.lesson-next { display:flex; flex-wrap:wrap; gap:8px; margin-top:14px; }

.lab { margin:20px 0; padding:16px; border:1px dashed #b9b2a4; background:#faf8f3; }
.lab-title { font-size:1rem; }
.lab p { color:var(--text-2); margin:4px 0 10px; }
.lab-row { display:grid; gap:4px; margin:10px 0; font-size:.88rem; color:var(--text-2); }
.lab-row input { width:100%; accent-color:var(--accent); }
.lab-readout { display:flex; align-items:center; gap:14px; flex-wrap:wrap; margin-top:10px; }
.lab-readout p { margin:0; flex:1; min-width:180px; }
.meter-face { background:#1e2a24; color:#d6f2b8; padding:9px 14px; min-width:120px; text-align:center; border-radius:4px; }
.meter-face small { display:block; color:#9fb59e; font:700 .6rem var(--mono); letter-spacing:.06em; }
.meter-face strong { font:700 1.5rem var(--mono); }
.probe-row { display:grid; grid-template-columns:repeat(5,minmax(0,1fr)); gap:4px; }
.probe-pt { padding:12px 4px; border:1px solid var(--line); background:var(--surface); font-size:.78rem; font-weight:600; line-height:1.2; }
.probe-pt.red { border-color:#c0392b; box-shadow:inset 0 -4px #c0392b; }
.probe-pt.black { border-color:#111; box-shadow:inset 0 -4px #111; }
.ah-list { display:grid; gap:4px; }
.ah-row { display:flex; align-items:center; gap:10px; padding:8px 10px; background:var(--surface); border:1px solid var(--line-soft); }
.ah-row span { flex:1; }
.ah-row small { color:var(--text-3); font-family:var(--mono); }

.star-total { color:var(--text-2); font-weight:700; }
.case-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:12px; margin-top:16px; }
.case-card { display:grid; gap:6px; padding:16px; background:var(--surface); border:1px solid var(--line); border-radius:4px; }
.case-card:hover { border-color:var(--text); }
.case-card b { font-size:1.05rem; }
.case-sys { color:var(--accent); font-weight:700; font-size:.78rem; }
.case-complaint { color:var(--text-2); font-size:.9rem; }
.case-stars { color:var(--accent); letter-spacing:2px; }
.case h1 { margin:4px 0 10px; }
.complaint { margin:12px 0 18px; padding:14px 16px; background:var(--surface); border-left:4px solid var(--text); font-size:1.05rem; }
.tests { background:var(--surface); border:1px solid var(--line); padding:14px; }
.tests-head { display:flex; justify-content:space-between; align-items:center; margin-bottom:10px; }
.clock { font-family:var(--mono); color:var(--text-2); font-size:.85rem; }
.test-list { display:grid; gap:6px; }
.test-btn { display:flex; justify-content:space-between; gap:10px; align-items:center; text-align:left; padding:11px 12px; border:1px solid var(--line); background:var(--surface-2); color:var(--text); font-size:.93rem; border-radius:4px; }
.test-btn small { color:var(--text-3); white-space:nowrap; }
.test-btn:hover:not(:disabled) { border-color:var(--text); }
.test-btn.used { opacity:.45; }
.test-log { list-style:none; padding:0; margin:12px 0 0; display:grid; gap:6px; counter-reset:t; }
.test-log li { padding:9px 12px 9px 36px; position:relative; background:#eef3ec; border-left:3px solid var(--green); }
.test-log li::before { counter-increment:t; content:counter(t); position:absolute; left:12px; top:9px; font:700 .8rem var(--mono); color:var(--green); }
.test-log b { display:block; font-size:.85rem; }
.test-log span { font-family:var(--mono); font-size:.9rem; }
.call { margin-top:18px; }
.call > b { display:block; margin-bottom:8px; font-size:1.05rem; }
.case-result { margin-top:14px; }
.result-stars { color:var(--accent); font-size:1.6rem; letter-spacing:4px; margin:0; }
.note-preview { margin:12px 0; padding:12px 14px; background:var(--surface); border:1px solid var(--line); font-size:.92rem; }
.note-preview p { margin:4px 0; }
.case-compact .complaint { display:none; }
.case-compact .tests { border:0; padding:0; background:none; }
.demo-more { margin-top:12px; }

.cheat { margin:18px 0; padding:16px; background:var(--surface); border:1px solid var(--line); }
.cheat h2 { margin:0; font-size:1.05rem; }
.note-form { display:grid; gap:10px; margin:16px 0; }
.note-form label { display:grid; gap:4px; font-weight:600; font-size:.9rem; }
.note-form textarea { font:inherit; padding:10px; border:1px solid var(--line); background:var(--surface); border-radius:4px; }
.note-out { white-space:pre-wrap; padding:14px; background:#1e2a24; color:#e4ecdc; font-size:.9rem; border-radius:4px; min-height:70px; }

.foot { background:#202927; color:#c9ccc4; border-top:0; margin-top:60px; }
.foot-inner { color:#c9ccc4; padding:34px 20px 30px; }
.foot-cols { display:flex; justify-content:space-between; gap:24px; flex-wrap:wrap; }
.foot-brand { color:#f3f1ec; font-size:1.1rem; margin:0 0 4px; }
.foot-brand b { color:#f3f1ec; }
.foot-credit { color:#a6aba2; font-style:italic; }
.foot-links { display:flex; flex-wrap:wrap; gap:6px 18px; align-content:flex-start; }
.foot-links a { color:#e6e3da; }
.foot-links a:hover { color:#f3c58f; }
.foot-copy { margin:22px 0 0; padding-top:14px; border-top:1px solid #3a4440; color:#8f958c; font-size:.8rem; }

@media (max-width:820px) {
  .home-hero { grid-template-columns:1fr; }
  .home-who { grid-template-columns:1fr; }
}
@media (max-width:600px) {
  .home-what, .case-grid { grid-template-columns:1fr; }
  .probe-row { grid-template-columns:repeat(5,minmax(0,1fr)); }
  .probe-pt { font-size:.68rem; padding:10px 2px; }
  .test-btn { font-size:.9rem; }
}
/* ---------------------------------------------------------------- slide lab (coming soon) */
.lab-strip { display:flex; align-items:center; gap:12px; flex-wrap:wrap; margin:0 0 18px; padding:11px 16px; background:#202927; color:#f3f1ec; border-radius:6px; border-left:4px solid var(--accent-2); }
.lab-strip:hover { background:#2a3532; }
.lab-strip-badge { font:700 .7rem var(--mono); text-transform:uppercase; letter-spacing:.08em; color:#202927; background:#f3c58f; padding:3px 8px; border-radius:3px; }
.lab-strip-text { flex:1 1 260px; font-weight:600; }
.lab-strip-cta { font-weight:700; color:#f3c58f; white-space:nowrap; }
.slab { margin:48px 0 0; padding:30px 26px; background:linear-gradient(160deg,#1c2523 0%,#25312e 100%); color:#f3f1ec; border-radius:8px; border:1px solid #33413d; }
.slab h2 { color:#fff; font-size:clamp(1.6rem,3.4vw,2.3rem); margin:8px 0 6px; }
.lab-badge { display:inline-block; font:700 .72rem var(--mono); text-transform:uppercase; letter-spacing:.1em; color:#202927; background:#f3c58f; padding:4px 10px; border-radius:3px; }
.lab-tagline { font-size:1.2rem; font-weight:650; color:#f3c58f; margin:0 0 12px; }
.lab-sub { color:#d3d6cf; max-width:60ch; }
.lab-hero { display:grid; grid-template-columns:minmax(0,1.1fr) minmax(0,1fr); gap:28px; align-items:center; }
.lab-fig { margin:0; }
.lab-svg { width:100%; height:auto; background:#16201e; border:1px solid #33413d; border-radius:6px; }
.lab-fig figcaption { font-size:.76rem; color:#9aa59f; margin-top:8px; }
.lab-opening { fill:none; stroke:#667a73; stroke-width:2; stroke-dasharray:5 4; }
.lab-diag { stroke:#4a5b55; stroke-width:1; stroke-dasharray:3 4; }
.lab-room { fill:rgba(216,135,58,.22); stroke:#f3c58f; stroke-width:2.5; }
.lab-cable { stroke-width:2.5; stroke-linecap:round; }
.lab-cable.ok { stroke:#7fc4a2; }
.lab-cable.slack { stroke:#e07a6b; stroke-dasharray:4 3; }
.lab-drum { fill:#33413d; stroke:#9aa59f; stroke-width:1.5; }
.lab-points { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:1px; background:#33413d; border:1px solid #33413d; margin:28px 0 0; border-radius:6px; overflow:hidden; }
.lab-point { background:#202b29; padding:16px 18px; }
.lab-point b { color:#fff; }
.lab-point p { margin:5px 0 0; color:#bfc5be; font-size:.94rem; }
.lab-side { margin:26px 0 0; display:grid; grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr); gap:24px; align-items:start; }
.lab-status { color:#d3d6cf; font-weight:600; border-left:3px solid var(--accent-2); padding-left:14px; margin:0 0 10px; }
.lab-count { color:#f3c58f; font:700 .95rem var(--mono); margin:0; }
.lab-form-wrap { background:#f3f1ec; color:#202927; border-radius:6px; padding:20px; }
.lab-form-wrap h3 { margin:0 0 4px; }
.lab-form-text { color:#525d58; margin:0 0 12px; }
.lab-form { display:grid; gap:10px; }
.lab-form > b { font-size:.82rem; color:#525d58; text-transform:uppercase; letter-spacing:.05em; margin-top:4px; }
.chips { display:flex; flex-wrap:wrap; gap:6px; }
.chip { font-size:.88rem; padding:7px 11px; border:1px solid var(--line); border-radius:999px; background:#fffefa; cursor:pointer; display:inline-flex; align-items:center; gap:6px; }
.chip.on, .chip-check:has(input:checked) { background:#202927; color:#fff; border-color:#202927; }
.chip-check input { position:absolute; opacity:0; pointer-events:none; }
.chip-check:has(input:focus-visible), .chip:focus-visible { box-shadow:var(--ring); }
.lab-form input[type=email], .lab-form textarea { width:100%; font:inherit; font-size:16px; padding:10px 12px; border:1px solid var(--line); border-radius:5px; background:#fffefa; color:inherit; }
.lab-form .hp { position:absolute; left:-9999px; width:1px; height:1px; opacity:0; }
.lab-privacy { font-size:.78rem; color:var(--text-3); margin:0; }
.lab-msg { margin:0; font-weight:600; min-height:1.2em; }
.lab-msg.bad { color:var(--red); }
.lab-thanks { padding:6px 2px; }
.lab-thanks b { font-size:1.15rem; }
.lab-thanks p { color:#525d58; margin:8px 0 12px; }
.lab-fine { color:#9aa59f; font-size:.78rem; margin:22px 0 0; }
.lab-page .slab { margin-top:14px; }

/* ---------------------------------------------------------------- circuit lab */
.circ-page { max-width:1080px; }
.circ-tabs { display:flex; flex-wrap:wrap; gap:6px; margin:0 0 14px; }
.circ-notice { margin:0 0 16px; padding:12px 16px; background:#f6efd9; border:1px solid #e0cf9f; border-left:5px solid var(--accent); border-radius:8px; }
.circ-notice b { display:block; font:700 .74rem var(--mono); letter-spacing:.1em; text-transform:uppercase; color:var(--accent); margin-bottom:3px; }
.circ-notice p { margin:0; color:var(--text); font-size:.98rem; }
.circ-howto { list-style:none; counter-reset:h; display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:10px; margin:0 0 14px; padding:0; }
.circ-howto li { counter-increment:h; position:relative; background:var(--surface); border:1px solid var(--line); border-radius:8px; padding:12px 12px 12px 42px; font-size:.92rem; color:var(--text-2); }
.circ-howto li::before { content:counter(h); position:absolute; left:12px; top:11px; width:22px; height:22px; border-radius:50%; background:var(--accent); color:#fff; font:700 .8rem var(--mono); display:grid; place-items:center; }
.circ-howto b { color:var(--text); }
.circ-modes { display:flex; flex-wrap:wrap; align-items:center; gap:8px; margin:0 0 16px; }
.circ-mode { font:700 .98rem var(--font); padding:11px 18px; border-radius:999px; border:2px solid var(--line); background:var(--surface); color:var(--text); cursor:pointer; }
.circ-mode.on { background:#202927; color:#fff; border-color:#202927; }
.circ-prog-line { margin-left:auto; font:700 .8rem var(--mono); color:var(--text-3); }
.circ-main { display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr); grid-template-areas:"fig step" "fig meter" "fig tools"; gap:14px 22px; align-items:start; }
.circ-area-step { grid-area:step; } .circ-area-fig { grid-area:fig; } .circ-area-meter { grid-area:meter; } .circ-area-tools { grid-area:tools; }
.circ-fig { margin:0; background:#0d1312; border:1px solid #33413d; border-radius:10px; overflow:hidden; }
.circ-svg { display:block; width:100%; height:auto; touch-action:manipulation; user-select:none; -webkit-user-select:none; }
.circ-hit { cursor:pointer; outline:none; -webkit-tap-highlight-color:transparent; }
.circ-hit:hover .circ-card { stroke:#6fe3d0; }
.circ-hit:focus-visible .circ-card { stroke:#6fe3d0; stroke-width:2.5; }
.circ-hit:focus-visible > circle:nth-of-type(2) { stroke:#6fe3d0; stroke-width:3; }
.circ-legend { display:flex; flex-wrap:wrap; gap:6px 14px; padding:10px 14px; background:#111917; border-top:1px solid #2a3833; font:600 .74rem var(--mono); color:#9fb0a9; }
.lg::before { content:""; display:inline-block; width:9px; height:9px; border-radius:50%; margin-right:6px; vertical-align:-1px; }
.lg-on::before { background:#f0a94e; } .lg-off::before { background:#33403c; border:1px solid #5a6863; } .lg-tap::before { background:#16201d; border:2px solid #6fe3d0; }
.circ-glyph.on { filter:drop-shadow(0 0 3px rgba(240,169,78,.8)); }
.circ-glyph.on * { stroke:#f0a94e; }
.circ-glyph.bad * { stroke:#ef7a6a; }
@keyframes circ-pop { 0% { stroke-width:1.5; } 40% { stroke-width:5; } 100% { stroke-width:1.5; } }
.circ-pulse { animation:circ-pop .7s ease-out; }
.circ-step { background:var(--surface); border:1px solid var(--line); border-radius:10px; padding:16px; }
.circ-stepno { display:block; font:700 .72rem var(--mono); letter-spacing:.08em; text-transform:uppercase; color:var(--text-3); }
.circ-stepname { margin:6px 0 6px; font-size:1.3rem; }
.circ-stepname.tone-warn { color:#a85e1b; } .circ-stepname.tone-bad { color:var(--red); } .circ-stepname.tone-good { color:var(--green); }
.circ-steptext { color:var(--text-2); margin:0 0 12px; font-size:1rem; line-height:1.5; }
.circ-say { font-size:1.2rem; line-height:1.4; font-weight:650; margin:8px 0 10px; color:var(--text); }
.circ-where { margin:0 0 12px; padding:10px 12px; border-radius:8px; font-size:.95rem; background:#f1ede2; border-left:4px solid var(--text-3); }
.circ-where.tone-good { border-left-color:var(--green); } .circ-where.tone-warn { border-left-color:var(--accent); } .circ-where.tone-bad { border-left-color:var(--red); background:#f6e9e6; }
.circ-testline { font-size:.9rem; color:var(--text-2); margin:0; }
.circ-stars { font-size:1.7rem; letter-spacing:.1em; color:var(--accent); margin:6px 0 4px; }
.circ-bar { display:flex; gap:6px; flex-wrap:wrap; }
.circ-meter { background:#0d1312; color:#d3d6cf; border:1px solid #33413d; border-radius:10px; padding:14px 16px; min-height:5.4em; }
.circ-meter b { color:#6fe3d0; font:700 .78rem var(--mono); letter-spacing:.06em; text-transform:uppercase; }
.circ-meter p { margin:6px 0 0; color:#e3e6e0; font-size:1rem; line-height:1.45; }
.circ-tools { display:grid; gap:10px; }
.circ-tools-label { font:700 .72rem var(--mono); letter-spacing:.08em; text-transform:uppercase; color:#8aa39b; width:100%; }
.circ-faults { display:flex; flex-wrap:wrap; align-items:center; gap:6px; padding:12px 14px; background:#0d1312; border:1px solid #33413d; border-radius:10px; }
.circ-hint { display:none; margin:0; padding:10px 12px; background:#f6efd9; border-left:4px solid var(--accent); border-radius:6px; color:var(--text); font-size:.95rem; }
.circ-hint.show { display:block; }
.circ-wrong { margin:0; padding:10px 12px; background:#f6e9e6; border-left:4px solid var(--red); border-radius:6px; font-size:.95rem; color:var(--text); }
.circ-ask { margin:4px 0 0; font-weight:700; }
.circ-opts { display:grid; gap:6px; }
.circ-opt { text-align:left; font:600 .95rem var(--font); padding:12px 14px; border-radius:8px; border:1px solid var(--line); background:var(--surface); color:var(--text); cursor:pointer; }
.circ-opt:hover { border-color:var(--accent); }
.circ-extra { margin:28px 0 0; }
.circ-numbers { list-style:none; margin:0; padding:0; display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:1px; background:var(--line); border:1px solid var(--line); }
.circ-numbers li { background:var(--surface); padding:12px 14px; display:grid; gap:2px; }
.circ-numbers b { font:700 1rem var(--mono); color:var(--accent); }
.circ-numbers span { color:var(--text-2); font-size:.9rem; }
.circ-sources { color:var(--text-2); font-size:.86rem; margin:14px 0 0; }
.circ-fine { color:var(--text-3); font-size:.8rem; margin:10px 0 0; }
@media (max-width:820px) {
  .circ-howto { grid-template-columns:1fr; gap:6px; }
  .circ-howto li { padding:9px 10px 9px 40px; font-size:.88rem; }
  .circ-main { grid-template-columns:1fr; grid-template-areas:"step" "fig" "meter" "tools"; }
  .circ-prog-line { margin-left:0; width:100%; }
  .circ-numbers { grid-template-columns:1fr; }
}
@media (prefers-reduced-motion: reduce) { .circ-pulse { animation:none; } }
@media print { .circ-bar, .circ-faults, .circ-tools, .circ-modes { display:none !important; } }
.lab-hero { align-items:start; }
.lab-svg { display:block; }
.lab-fig .lab-svg { border-radius:6px 6px 0 0; border-bottom:0; }
.lab-modes { display:flex; flex-wrap:wrap; align-items:center; gap:6px; padding:10px 10px; background:#0d1312; border:1px solid #33413d; border-top:1px solid #2f3f3a; border-radius:0 0 6px 6px; }
.lab-modes-label { font:600 .72rem var(--mono); letter-spacing:.08em; text-transform:uppercase; color:#8aa39b; width:100%; }
.chip-dark { background:#17221f; color:#d3d6cf; border-color:#33413d; font-size:.8rem; padding:6px 10px; }
.chip-dark:hover { border-color:#6fe3d0; }
.chip-dark.on { background:#6fe3d0; color:#082018; border-color:#6fe3d0; }
.chip-xray { margin-left:auto; }
.chip-xray.on { background:#ef9a3c; border-color:#ef9a3c; color:#241503; }
@media (max-width:820px) { .chip-xray { margin-left:0; } }

/* ---------------------------------------------------------------- shops pitch */
.home-shops { margin:40px 0 0; padding:22px 24px; background:var(--surface); border:1px solid var(--line); border-left:4px solid var(--accent); display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap; }
.home-shops h2 { font-size:1.25rem; margin:0 0 4px; }
.home-shops p { margin:0; color:var(--text-2); max-width:58ch; }
.shop-cost { margin:40px 0 0; padding:26px; background:#202927; color:#f3f1ec; border-radius:6px; }
.shop-cost h2 { color:#fff; margin:0 0 8px; }
.shop-cost-text { color:#d3d6cf; max-width:62ch; }
.cost-nums { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:1px; background:#3a4743; border:1px solid #3a4743; margin:18px 0 12px; }
.cost-num { background:#26312e; padding:16px 18px; }
.cost-num b { display:block; font-size:1.55rem; color:#f3c58f; line-height:1.15; margin-bottom:6px; }
.cost-num span { color:#c9ccc4; font-size:.9rem; }
.shop-cost-fine { color:#9aa59f; font-size:.78rem; margin:0; }
.shop-vets { margin:40px 0 0; padding:20px 22px; background:#efe8da; border-left:4px solid var(--accent); }
.shop-vets h2 { font-size:1.15rem; margin:0 0 6px; }
.shop-vets p { margin:0; color:var(--text-2); max-width:64ch; }
.shop-dash { margin:18px 0 0; border:1px solid var(--line); background:var(--surface); border-radius:6px; overflow:hidden; }
.dash-bar { display:flex; justify-content:space-between; align-items:center; padding:12px 16px; background:var(--surface-3); border-bottom:1px solid var(--line); }
.dash-mock { font:700 .68rem var(--mono); letter-spacing:.1em; color:var(--accent); border:1px solid var(--accent); padding:2px 7px; border-radius:3px; }
.dash-scroll { overflow-x:auto; }
.dash-table { width:100%; border-collapse:collapse; font-size:.94rem; min-width:480px; }
.dash-table th { text-align:left; font-size:.74rem; text-transform:uppercase; letter-spacing:.06em; color:var(--text-3); padding:10px 16px; border-bottom:1px solid var(--line); }
.dash-table td { padding:12px 16px; border-bottom:1px solid var(--line-soft); }
.dash-table tr:last-child td { border-bottom:0; }
.dash-name { font-weight:700; }
.shop-dash figcaption { padding:12px 16px; font-size:.8rem; color:var(--text-3); background:var(--surface-2); border-top:1px solid var(--line); }
.shop-join { margin:44px 0 0; padding:26px; background:#202927; color:#f3f1ec; border-radius:6px; display:grid; grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr); gap:24px; align-items:start; }
.shop-join h2 { color:#fff; margin:0 0 8px; }
.shop-join p { color:#d3d6cf; }
@media (max-width:820px) {
  .cost-nums, .shop-join { grid-template-columns:1fr; }
  .shop-cost, .shop-join { padding:20px 16px; }
}
@media (max-width:820px) {
  .slab { padding:22px 16px; }
  .lab-hero, .lab-side { grid-template-columns:1fr; }
  .lab-points { grid-template-columns:1fr; }
}
@media print { .topbar, .foot, .site-banner, .side-links button, .btn { display:none !important; } .cheat { break-inside:avoid; } .slab, .lab-strip { display:none !important; } }

/* ---------------------------------------------------------------- dark theme
   One variable override; every component reads the palette above. */
[data-theme="dark"] {
  --bg:        #0d1312;
  --bg-2:      #101817;
  --surface:   #131b1a;
  --surface-2: #18211f;
  --surface-3: #1e2826;
  --line:      #2a3533;
  --line-soft: #223029;
  --text:      #e8e6df;
  --text-2:    #b3b8b2;
  --text-3:    #8a938d;
  --accent:    #f2b50c;
  --accent-2:  #ffd54d;
  --accent-ink:#0d1312;
  --blue:      #6fa7c9;
  --green:     #6fbf8f;
  --red:       #e07a6d;
  --amber:     #f2b50c;
  --purple:    #a99bc0;
  --teal:      #5fb3ae;
  --shadow-1:  0 1px 2px rgba(0,0,0,.4);
  --shadow-2:  0 4px 14px rgba(0,0,0,.4);
  --shadow-3:  0 12px 38px rgba(0,0,0,.55);
  --ring:      0 0 0 3px rgba(242,181,12,.3);
}
[data-theme="dark"] .theme-toggle { color: var(--text-2); }
[data-theme="dark"] img:not([src*="icon"]) { filter: brightness(.92); }

/* AI written answer (search overlay) */
.sr-ai { margin:0 0 10px; }
.sr-ai-btn { width:100%; padding:11px 14px; font:700 .92rem/1.2 inherit; text-align:left; cursor:pointer; background:var(--surface); color:var(--text); border:1px solid var(--line); border-left:4px solid #e8b53a; }
.sr-ai-btn:disabled { opacity:.7; cursor:default; }
.sr-ai-panel { margin-top:8px; padding:12px 14px; background:var(--surface); border:1px solid var(--line); }
.sr-ans-text { white-space:pre-wrap; line-height:1.5; font-size:.95rem; }
.sr-ans-src { margin-top:10px; font-size:.78rem; color:var(--text-3); }
.sr-ans-fine { margin-top:8px; font-size:.78rem; color:var(--text-3); }

/* per-question feedback */
.flag-box { margin-top:14px; }
.flag-link { background:none; border:0; padding:0; color:var(--text-3); font-size:.8rem; text-decoration:underline; cursor:pointer; }
.flag-ta { width:100%; box-sizing:border-box; font:inherit; font-size:.9rem; padding:8px; border:1px solid var(--line); background:var(--surface); color:var(--text); }
.flag-row { display:flex; gap:10px; align-items:center; margin-top:6px; }
.flag-msg { font-size:.8rem; color:var(--text-3); }

/* ---------------------------------------------------------------- shop accounts */
.sh-page { max-width: 980px; }
.sh-lede { color: var(--text-2); max-width: 64ch; }
.sh-lbl { display:block; margin:12px 0 0; font-weight:700; font-size:.88rem; }
.sh-in { display:block; width:100%; max-width:420px; box-sizing:border-box; margin-top:4px; padding:10px 12px; font:inherit; border:1px solid var(--line); background:var(--surface); color:var(--text); }
.sh-row { display:flex; flex-wrap:wrap; gap:10px; align-items:center; margin-top:12px; }
.sh-msg { min-height:1.2em; font-size:.9rem; color:var(--text-2); }
.sh-fine { font-size:.82rem; color:var(--text-3); }
.sh-note, .sh-warn { padding:12px 14px; border:1px solid var(--line); background:var(--surface); margin:12px 0; }
.sh-warn { border-left:4px solid var(--accent); }
.sh-card { margin:22px 0; padding:16px; border:1px solid var(--line); background:var(--surface); }
.sh-card h2 { margin-top:0; }
.sh-quiet { opacity:.85; }
.sh-code { font-size:1.4rem; letter-spacing:.12em; font-family:monospace; }
.sh-url { display:inline-block; max-width:100%; overflow-wrap:anywhere; font-size:.8rem; padding:6px 8px; background:var(--bg, transparent); border:1px dashed var(--line); }
.sh-stats { display:flex; flex-wrap:wrap; gap:12px; margin:16px 0; }
.sh-stat { flex:1 1 140px; padding:12px; border:1px solid var(--line); background:var(--surface); }
.sh-stat b { display:block; font-size:1.3rem; }
.sh-stat span { font-size:.82rem; color:var(--text-3); }
.sh-bar { display:block; height:5px; margin-top:4px; background:var(--line); border-radius:3px; overflow:hidden; min-width:50px; }
.sh-bar i { display:block; height:100%; background:var(--accent); }
.sh-table { display:flex; flex-direction:column; gap:2px; }
.sh-tr { display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr 1.3fr .9fr; gap:10px; align-items:center; padding:10px 8px; text-align:left; font:inherit; font-size:.88rem; color:var(--text); background:none; border:0; border-bottom:1px solid var(--line); cursor:pointer; }
.sh-th { cursor:default; font-weight:700; font-size:.75rem; text-transform:uppercase; color:var(--text-3); }
.sh-name { font-weight:700; }
.sh-bad { color:#b3402e; }
.sh-detail { padding:10px 8px 16px; border-bottom:1px solid var(--line); }
.sh-modprog { display:grid; grid-template-columns:repeat(auto-fill,minmax(200px,1fr)); gap:8px 16px; }
.sh-mp { font-size:.82rem; display:grid; grid-template-columns:1fr auto; gap:2px 8px; }
.sh-mp .sh-bar { grid-column:1/-1; }
.sh-mp.assigned span:first-child { font-weight:700; }
.sh-mods { display:grid; grid-template-columns:repeat(auto-fill,minmax(230px,1fr)); gap:6px 14px; margin:10px 0; }
.sh-mod { display:flex; gap:8px; align-items:center; font-size:.88rem; }
.sh-result { display:grid; grid-template-columns:auto 1fr; gap:2px 12px; align-items:center; width:100%; padding:10px 8px; text-align:left; font:inherit; color:var(--text); background:none; border:0; border-bottom:1px solid var(--line); cursor:pointer; }
.sh-result .sh-fine { grid-column:2; }
.sh-score { font-size:1.2rem; }
.sh-score.good { color:#2f7a3d; } .sh-score.ok { color:#a06a12; } .sh-score.low { color:#b3402e; }
.sh-sysline { display:flex; justify-content:space-between; gap:12px; font-size:.86rem; padding:4px 0; border-bottom:1px dotted var(--line); }
.sh-assigned { margin:0 0 20px; padding:14px; border:1px solid var(--line); border-left:4px solid var(--accent); background:var(--surface); }
.sh-assigned-list { display:grid; grid-template-columns:repeat(auto-fill,minmax(220px,1fr)); gap:10px; margin-top:8px; }
.sh-assigned-item { display:block; padding:10px; border:1px solid var(--line); color:var(--text); text-decoration:none; }
.sh-assigned-item span { display:block; font-size:.82rem; color:var(--text-3); }
.sh-assigned-item.done { opacity:.7; }
.sh-cta { display:grid; grid-template-columns:repeat(auto-fit,minmax(230px,1fr)); gap:14px; margin:20px 0 28px; }
.sh-cta-item { padding:16px; border:1px solid var(--line); background:var(--surface); }
.sh-cta-item h3 { margin-top:0; }
@media (max-width: 720px) {
  .sh-tr { grid-template-columns: 1fr 1fr; }
  .sh-th { display:none; }
}

/* ---------------------------------------------------------------- skills test */
.st-page { max-width: 820px; }
.st-rules { color:var(--text-2); }
.st-top { display:flex; justify-content:space-between; align-items:center; gap:10px; }
.st-clock { font-family:monospace; font-size:.9rem; color:var(--text-3); }
.st-complaint { margin:12px 0; padding:12px 14px; border-left:4px solid var(--accent); background:var(--surface); font-style:italic; }
.st-h2 { font-size:1.05rem; margin:20px 0 8px; }
.st-tests { display:flex; flex-direction:column; gap:6px; }
.st-test { display:flex; justify-content:space-between; gap:10px; width:100%; padding:10px 12px; text-align:left; font:inherit; color:var(--text); background:var(--surface); border:1px solid var(--line); cursor:pointer; }
.st-test.ran { opacity:.75; cursor:default; }
.st-result { padding:6px 12px 10px; font-family:monospace; font-size:.88rem; color:var(--text-2); }
.st-report { display:flex; flex-direction:column; gap:8px; }
.st-line { display:flex; flex-direction:column; gap:2px; padding:10px 12px; border:1px solid var(--line); border-left:4px solid #2f7a3d; }
.st-line.wrong { border-left-color:#b3402e; }

/* ------------------------------------------------------------ related by system */
.rel-box { margin:28px 0 8px; padding:14px 16px; border:1px solid var(--line); background:var(--surface); }
.rel-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); gap:12px 18px; margin-top:8px; }
.rel-col { display:flex; flex-direction:column; gap:4px; font-size:.88rem; }
.rel-col b { font-size:.75rem; text-transform:uppercase; letter-spacing:.04em; color:var(--text-3); }
@media print { .rel-box, .flag-box, .sh-quiet .sh-row { display:none; } }

/* ------------------------------------------------------- 3D lab: service-call panel */
.circ-select { display:none; width:100%; padding:10px 12px; margin:0 0 12px; font:inherit; border:2px solid var(--ink, #1a1a1a); background:var(--surface); color:var(--text); }
@media (max-width: 720px) { .circ-tabs { display:none; } .circ-select { display:block; } }
.lab3d-shell { margin:18px 0; }
.lab3d-shell .lab3d { margin:0; }
.lab3d-hud .lab3d-meter { font-size:13px; line-height:1.45; }
.lab3d-panel { display:grid; grid-template-columns: 1fr 1fr; gap:14px; margin-top:14px; }
.lab3d-panel > section { padding:14px; border:1px solid var(--line); background:var(--surface); }
.lab3d-panel .lp-call { grid-column:1 / -1; border-left:4px solid var(--accent); }
.lp-kicker { display:block; font:700 .72rem/1.2 var(--mono, monospace); letter-spacing:.06em; text-transform:uppercase; color:var(--text-3); margin-bottom:6px; }
.lp-say { font-size:1.08rem; font-weight:600; margin:2px 0 8px; }
.lp-row { display:flex; flex-wrap:wrap; gap:8px; }
.lp-fine { font-size:.82rem; color:var(--text-3); margin:2px 0 10px; }
.lp-item { display:grid; grid-template-columns: 1fr auto; gap:2px 10px; width:100%; text-align:left; padding:9px 10px; margin:0 0 4px; font:inherit; color:var(--text); background:none; border:1px solid var(--line); cursor:pointer; }
.lp-item:hover { border-color:var(--accent); }
.lp-item.on { border-color:var(--accent); background:rgba(183,101,36,.08); }
.lp-name { font-weight:700; font-size:.92rem; }
.lp-kind { font-size:.72rem; color:var(--text-3); text-transform:uppercase; letter-spacing:.04em; align-self:center; }
.lp-read { grid-column:1 / -1; font:600 .82rem/1.4 var(--mono, monospace); color:var(--text-3); }
.lp-item.done .lp-read { color:var(--text); }
.lp-opts { display:flex; flex-direction:column; gap:6px; margin:4px 0 10px; }
.lp-opt { text-align:left; padding:10px 12px; font:inherit; font-size:.92rem; color:var(--text); background:none; border:1px solid var(--line); cursor:pointer; }
.lp-opt:hover { border-color:var(--accent); }
.lp-msg { margin-top:10px; padding:8px 10px; background:rgba(179,64,46,.1); border-left:3px solid #b3402e; font-size:.9rem; }
.lp-ans.solved { border-left:4px solid #2f7a3d; }
@media (max-width: 720px) { .lab3d-panel { grid-template-columns: 1fr; } }

/* fault codes by appliance */
.code-chips { display:flex; flex-wrap:wrap; gap:8px; margin:6px 0 18px; }
.code-chip { display:inline-flex; align-items:center; min-height:40px; padding:8px 12px; border:1px solid var(--line); background:var(--surface); color:var(--text); font:inherit; font-size:.88rem; font-weight:600; border-radius:6px; cursor:pointer; text-decoration:none; }
.code-chip:hover { border-color:var(--text-2); }
.code-chip.on { background:var(--text); color:var(--bg); border-color:var(--text); }
.diagnose-codes { margin:10px 0 8px; }

/* wiring diagrams */
.wr-legend { display:flex; flex-wrap:wrap; align-items:center; gap:6px; color:var(--text-2); font-size:.86rem; margin:4px 0 18px; }
.wr-swatch { display:inline-block; width:28px; height:0; border-top:5px solid var(--text); vertical-align:middle; }
.wr-swatch.job { border-top-style:dashed; }
.wr-run { border:1px solid var(--line); background:var(--surface); padding:14px 14px 6px; margin:0 0 16px; border-radius:6px; }
.wr-head { display:flex; flex-wrap:wrap; gap:8px; align-items:baseline; font-size:.95rem; letter-spacing:.03em; margin:0 0 10px; }
.wr-arrow { color:var(--accent); }
.wr-list { list-style:none; margin:0; padding:0; }
.wr-row { display:grid; grid-template-columns:minmax(64px,22%) 1fr minmax(64px,22%); gap:4px 10px; align-items:center; padding:10px 0; border-top:1px solid var(--line-soft); }
.wr-row:first-child { border-top:0; }
.wr-end { font-size:.78rem; color:var(--text-2); line-height:1.25; }
.wr-end.b { text-align:right; }
.wr-mid { display:flex; flex-direction:column; gap:6px; min-width:0; }
.wr-name { font-size:.86rem; line-height:1.3; }
.wr-bar { display:block; height:0; border-top:7px solid var(--wc); border-radius:2px; box-shadow:0 0 0 1px var(--line); }
.wr-bar.job { border-top-style:dashed; box-shadow:none; }
.wr-bar.light { box-shadow:0 0 0 1.5px var(--text-3); }
.wr-read { grid-column:1 / -1; font-size:.86rem; color:var(--text-2); }
.wr-checks-title { font-size:1.05rem; margin:22px 0 8px; }
.wr-checks { margin:0 0 16px; padding-left:20px; }
.wr-checks li { margin:0 0 6px; }
@media print { .topbar, .foot, .wiz-actions { display:none !important; } .wr-run { break-inside:avoid; } }

/* legal notes */
.legal-line { margin:14px 0 0; font-size:.76rem; color:var(--text-3); line-height:1.4; }
.legal-line a, .foot-legal a { color:inherit; text-decoration:underline; }
.foot-legal { font-size:.72rem; opacity:.7; line-height:1.45; max-width:80ch; margin:14px 0 6px; }

/* wiring schematics */
.wr-frame { border:1px solid var(--line); background:var(--surface); border-radius:6px; padding:6px 0; margin:14px 0 10px; }
.wr-svg { display:block; width:100%; height:auto; }
.wr-part rect { fill:var(--surface-2); stroke:var(--text); stroke-width:1.4; }
.wr-pname { font:700 11px/1 "Barlow Condensed", "Barlow", system-ui, sans-serif; letter-spacing:.04em; fill:var(--text); }
.wr-psub { font:500 9.5px/1 "Barlow", system-ui, sans-serif; fill:var(--text-2); }
.wr-edge { fill:none; stroke:#5c5c5c; stroke-width:5.5; stroke-linejoin:round; stroke-linecap:round; }
.wr-core { fill:none; stroke-width:3.4; stroke-linejoin:round; stroke-linecap:round; }
.wr-core.job { stroke-dasharray:7 4; }
.wr-hit { fill:none; stroke:transparent; stroke-width:16; cursor:pointer; }
.wr-gnd { fill:none; stroke:var(--text); stroke-width:1.6; }
.wr-plug { fill:var(--surface); stroke:var(--text); stroke-width:1.3; }
.wr-tp { cursor:pointer; }
.wr-tp circle { fill:var(--surface); stroke:var(--accent); stroke-width:1.6; }
.wr-tp text { font:700 8.5px/1 "IBM Plex Mono", ui-monospace, monospace; fill:var(--text); }
.wr-wire:focus { outline:none; }
.wr-svg.has-pick .wr-wire { opacity:.18; }
.wr-svg.has-pick .wr-tp { opacity:.3; }
.wr-svg.has-pick .wr-wire.on, .wr-svg.has-pick .wr-tp.on { opacity:1; }
.wr-wire.on .wr-edge { stroke:var(--accent); stroke-width:8; }
.wr-tp.on circle { fill:var(--accent); }
.wr-info { min-height:2.6em; padding:10px 12px; border-left:3px solid var(--accent); background:var(--surface); font-size:.9rem; margin:0 0 10px; }
.wr-info-hint { color:var(--text-3); }
.wr-info-read { display:block; margin-top:4px; color:var(--text-2); }
.wr-sw { display:inline-block; width:22px; height:0; border-top:5px solid var(--wc); vertical-align:middle; box-shadow:0 0 0 1px #5c5c5c; }
.wr-sw.job { border-top-style:dashed; box-shadow:none; }
.wr-key-plug { display:inline-block; width:12px; height:6px; border:1.3px solid var(--text); vertical-align:middle; }
.wr-key-tp { display:inline-flex; align-items:center; justify-content:center; width:20px; height:20px; border:1.6px solid var(--accent); border-radius:50%; font:700 .7rem "IBM Plex Mono", monospace; flex:none; }
.wr-tps { list-style:none; margin:0 0 14px; padding:0; }
.wr-tprow { display:flex; gap:10px; align-items:flex-start; padding:10px 6px; border-top:1px solid var(--line-soft); cursor:pointer; }
.wr-tprow.on { background:var(--surface); outline:2px solid var(--accent); }
.wr-tptext { display:flex; flex-direction:column; gap:2px; font-size:.9rem; }
.wr-tptext small { color:var(--text-3); font-size:.78rem; }
.wr-tptext > span:last-child { color:var(--text-2); }
@media print { .wr-svg.has-pick .wr-wire, .wr-svg.has-pick .wr-tp { opacity:1; } }

/* wiring trainer */
.wr-states, .wr-modes { display:flex; flex-wrap:wrap; gap:6px; margin:8px 0; }
.wr-modes .wr-faultbtn { border-color:var(--accent); }
.wr-flow { fill:none; stroke:#fff; stroke-width:1.6; stroke-dasharray:1.5 9; stroke-linecap:round; opacity:0; }
.wr-wire.live .wr-flow { opacity:.85; }
@media (prefers-reduced-motion: no-preference) { .wr-wire.live .wr-flow { animation:wr-flow 0.9s linear infinite; } }
@keyframes wr-flow { to { stroke-dashoffset:-21; } }
.wr-wire.lead-red .wr-edge { stroke:#e53935; stroke-width:8; }
.wr-wire.lead-black .wr-edge { stroke:#111; stroke-width:8; }
.wr-tp.lead-red circle { fill:#e53935; stroke:#e53935; } .wr-tp.lead-red text { fill:#fff; }
.wr-tp.lead-black circle { fill:#111; stroke:#111; } .wr-tp.lead-black text { fill:#fff; }
.wr-meter { border:2px solid var(--text); background:#1d2422; color:#f4f1e8; border-radius:8px; padding:12px; margin:0 0 10px; }
.wr-lcd { font:700 2rem/1.1 "IBM Plex Mono", ui-monospace, monospace; background:#c9d4bf; color:#1d2422; border-radius:4px; padding:10px 12px; text-align:right; min-height:1.3em; }
.wr-leads { display:flex; flex-wrap:wrap; gap:8px 16px; margin:10px 0 6px; font:600 .82rem "IBM Plex Mono", monospace; }
.wr-leads .lead.r { color:#ff6b61; } .wr-leads .lead.b { color:#cfcfcf; }
.wr-meter .btn { color:#f4f1e8; border-color:#f4f1e8; }
.wr-meter-acts { display:flex; flex-wrap:wrap; gap:8px; margin-top:8px; }
.wr-hint { font-size:.8rem; opacity:.8; margin:8px 0 0; }
.wr-fault { border:2px dashed var(--accent); background:var(--surface); padding:12px; border-radius:6px; margin:6px 0 10px; font-size:.92rem; }
.wr-now { font-style:normal; font-weight:700; color:var(--accent); font-size:.84rem; }
.wr-now:empty { display:none; }

/* wiring: diagram / fault tester */
.wr-tabs { display:flex; gap:0; margin:6px 0 12px; border:2px solid var(--text); border-radius:8px; overflow:hidden; }
.wr-tab { flex:1; min-height:46px; font:700 1rem "Barlow Condensed", "Barlow", sans-serif; letter-spacing:.05em; text-transform:uppercase; background:var(--surface); color:var(--text); border:0; cursor:pointer; }
.wr-tab.on { background:var(--text); color:var(--bg); }
.wr-card { border:2px solid var(--accent); background:var(--surface); border-radius:8px; padding:14px; margin:0 0 12px; }
.wr-label { display:block; font:700 .78rem "IBM Plex Mono", monospace; letter-spacing:.06em; text-transform:uppercase; color:var(--text-3); margin:0 0 6px; }
.wr-say { font-size:1.08rem; font-weight:600; margin:0 0 10px; }
.wr-steps { margin:0 0 12px; padding-left:20px; font-size:.9rem; color:var(--text-2); }
.wr-steps li { margin:0 0 4px; }
.wr-answers { display:grid; gap:8px; }
.wr-verdict { border-left:4px solid var(--green); padding:4px 0 4px 12px; }
.wr-verdict.no { border-left-color:var(--red); }
.wr-verdict b { font-size:1.1rem; }
.wr-statebar { display:flex; flex-wrap:wrap; align-items:center; gap:6px; margin:4px 0 8px; }
.wr-statebar .wr-label { margin:0 4px 0 0; }
.wr-tphit { fill:transparent; stroke:none; }
.wr-tp circle:not(.wr-tphit) { stroke-width:2; }
.wr-tp text { font-size:10px; }
.wiring [hidden] { display:none !important; }
.wr-steps-short { margin:0 0 8px; font-size:.88rem; color:var(--text-2); }
.wr-topbar { display:flex; gap:8px; align-items:center; position:sticky; top:0; z-index:25; padding:6px 0; margin:0 0 6px; background:var(--bg); }
.wr-chassis { display:flex; align-items:center; gap:8px; flex:1; min-width:0; min-height:44px; padding:4px 12px; border:2px dashed var(--text-3); background:var(--surface); color:var(--text); border-radius:8px; font:inherit; text-align:left; cursor:pointer; }
.wr-chassis b { font:700 .8rem "IBM Plex Mono", monospace; letter-spacing:.06em; flex:none; }
.wr-chassis > span:last-child { color:var(--text-2); font-size:.76rem; }
.wr-chassis-dot { width:18px; height:18px; flex:none; border-radius:50%; border:2px solid var(--text); background:var(--bg); }
.wr-chassis.on { border-style:solid; border-color:var(--accent); }
.wr-chassis.near { background:#fff0b8; color:#222; }
.wr-tp.near circle:not(.wr-tphit) { fill:var(--accent); stroke-width:3.5; }
.wiring.wr-practice { padding-bottom:210px; }
.wr-practice .crumbs, .wr-practice .case-sys, .wr-practice h1, .wr-practice .wr-legend { display:none; }
.wr-live .wr-checks-title, .wr-live .wr-checks, .wr-live .wiz-actions { display:none; }
.wr-practice .wr-tabs { margin:0 0 8px; }
.wr-practice .wr-tab { min-height:40px; }
.wr-practice .wr-card { padding:10px 12px; margin:0 0 8px; }
.wr-practice .wr-card .wr-label { margin:0 0 2px; }
.wr-practice .wr-say { font-size:1rem; margin:0 0 4px; }
.wr-practice .wr-frame { margin:0 0 8px; }
body.wr-testing .topbar { display:none; }
.wr-dock { position:fixed; left:0; right:0; bottom:0; z-index:60; max-width:560px; margin:0 auto; background:var(--bg); border-top:2px solid var(--text); border-radius:12px 12px 0 0; padding:6px 8px calc(6px + env(safe-area-inset-bottom)); box-shadow:0 -6px 18px rgba(0,0,0,.28); }
.wr-dockrow { display:flex; gap:8px; align-items:center; margin:0 0 6px; }
.wr-dockchips { display:flex; gap:6px; overflow-x:auto; flex:1; min-width:0; scrollbar-width:none; }
.wr-dockchips::-webkit-scrollbar { display:none; }
.wr-dockchips .code-chip { flex:none; white-space:nowrap; min-height:40px; }
.wr-found { flex:none; min-height:44px; padding:0 14px; }
.wr-meter-svg { display:block; width:min(100%, 320px); height:auto; margin:0 auto; touch-action:manipulation; }
.wr-brand { font:700 6px "IBM Plex Mono", monospace; fill:#5b4300; letter-spacing:.12em; }
.wr-seg { fill:#1d2a1a; opacity:.08; }
.wr-seg.on { opacity:.92; }
.wr-lcd-unit { font:700 15px "IBM Plex Mono", monospace; fill:#1d2a1a; }
.wr-lcd-mode { font:700 7px "IBM Plex Mono", monospace; fill:#1d2a1a; }
.wr-hint1, .wr-hint2 { font:700 8.2px "IBM Plex Mono", monospace; fill:#3a2d00; }
.wr-jack-t, .wr-dial-t { font:700 6.5px "IBM Plex Mono", monospace; fill:#4a3800; }
.wr-dial-t.sel { fill:#000; font-size:7.8px; }
.wr-leads-layer { position:fixed; left:0; top:0; width:100vw; height:100vh; z-index:70; pointer-events:none; touch-action:none; overflow:visible; }
.wr-cab-o { fill:none; stroke:rgba(255,255,255,.75); stroke-width:7; stroke-linecap:round; }
.wr-cab { fill:none; stroke-width:4; stroke-linecap:round; }
.wr-ld.red .wr-cab { stroke:#d9261c; } .wr-ld.black .wr-cab { stroke:#141414; }
.wr-ld.red .wr-hdl { fill:#d9261c; stroke:#6e0d08; stroke-width:1; } .wr-ld.black .wr-hdl { fill:#262626; stroke:#000; stroke-width:1; }
.wr-ld.red .wr-plugend { fill:#a81d14; } .wr-ld.black .wr-plugend { fill:#111; stroke:#777; stroke-width:.8; }
.wr-ndl { stroke:#dfe3e8; stroke-width:2.4; stroke-linecap:round; }
.wr-ring { fill:none; stroke:var(--accent); stroke-width:2; stroke-dasharray:4 3; opacity:0; }
.wr-ld.sel .wr-ring { opacity:1; }
.wr-ld.drag .wr-hdl { filter:drop-shadow(0 4px 4px rgba(0,0,0,.4)); }
.wr-grab { fill:transparent; pointer-events:all; cursor:grab; touch-action:none; }
@media print { .wr-dock, .wr-leads-layer, .wr-chassis { display:none !important; } }
/* 3D lab: service call above the view, meter readout in the view */
.lab3d-call { margin: 0 0 14px; }
.lab3d-call .lp-call { padding: 16px 18px; border: 1px solid var(--line); border-left: 4px solid var(--accent); background: var(--surface); border-radius: var(--radius-lg); }
.lp-call-head { display: flex; flex-wrap: wrap; gap: 10px 24px; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.lp-how { display: flex; flex-wrap: wrap; gap: 6px 18px; margin: 0; padding: 0; list-style: none; counter-reset: how; }
.lp-how li { counter-increment: how; display: flex; gap: 8px; align-items: center; color: var(--text-3); font-size: .86rem; }
.lp-how li::before { content: counter(how); display: inline-grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; border: 1px solid var(--line-strong); font-size: .76rem; font-weight: 700; color: var(--text-2); flex: none; align-self: center; }
.lp-how li b { color: var(--text-2); font-weight: 650; white-space: nowrap; }
.lp-how li span { display: none; }
.lp-how li.on { color: var(--text-2); }
.lp-how li.on::before { background: var(--text); color: var(--bg); border-color: var(--text); }
.lp-how li.on b { color: var(--text); }
.lab3d-call .lp-say { font-size: 1.15rem; font-weight: 650; margin: 8px 0 12px; }
.lab3d-meter.has-probe { max-width: 380px; }
.lab3d-meter-top { display: flex; gap: 10px; align-items: baseline; justify-content: space-between; }
.lab3d-meter-mode { font: 700 10px/1 var(--font); letter-spacing: .02em; color: #9aa4aa; white-space: nowrap; }
.lab3d-lcd { margin: 6px 0 4px; padding: 6px 10px; border-radius: 6px; background: #c6d4bd; color: #172216; font: 700 22px/1.1 var(--display); letter-spacing: .01em; font-variant-numeric: tabular-nums; }
.lab3d-meter-where { font: 500 11.5px/1.35 var(--font); color: #b4bdc2; margin-bottom: 4px; }
.lab3d-meter-body { font: 500 12.5px/1.4 var(--font); color: #f2f4f5; }
@media (max-width: 640px) { .lab3d-lcd { font-size: 18px; } .lab3d-meter-body { font-size: 12px; } }