/* ==========================================================================
   Under the Engine — design tokens + components
   Light theme only. Sharp edges, 1 px rules, engineering typography.
   ========================================================================== */

:root {
  /* Surfaces */
  --paper:   #FFFFFF;
  --paper-2: #F5F5F5;
  --surface: #FFFFFF;
  /* Ink */
  --ink:       #0A0A0A;
  --ink-soft:  #26282C;
  --line:      #CFCFCF;
  --line-soft: #ECECEC;
  --mute:      #5F6166;
  /* Signal */
  --accent:  #1D6B55;
  --warm:    #C2502A;
  --heat:    #E2A93B;
  --intake:  #3E6FB7;
  --exhaust: #7A6E60;
  --elec:    #1D6B55;
  --brand:   #1E2B5E;
  --go:      #2BB76E;
  --go-press:#1E9B59;

  --sans: "Barlow", "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --mono: "Barlow Semi Condensed", "Barlow", system-ui, sans-serif;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink-soft);
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.5;
}
button { font: inherit; color: inherit; }
a { color: var(--ink); }
h1, h2, h3, h4 { color: var(--ink); line-height: 1.2; margin: 0; }
p { margin: 0 0 10px; }

.ute-label {
  font-family: var(--mono); font-size: 10.5px; font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute);
}
.mono { font-family: var(--mono); }

/* ---------- Root / shell ---------- */
#ute-root, .ute-page { display: flex; flex-direction: column; min-height: 100dvh; }

.ute-top {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 10px 24px; background: var(--paper);
  border-bottom: 1px solid var(--ink);
}
.ute-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.ute-brand-mark { width: 28px; height: 28px; display: block; flex: none; }
.ute-brand-word { font: 600 20px/1 var(--sans); letter-spacing: -0.01em; color: var(--brand); white-space: nowrap; }
.ute-brand-sub {
  font: 500 10.5px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--mute);
  border-left: 1px solid var(--ink); padding-left: 10px; white-space: nowrap;
}
.ute-nav { display: flex; gap: 2px; }
.ute-nav a {
  font: 600 10.5px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase;
  padding: 7px 10px; text-decoration: none; color: var(--mute); border-bottom: 2px solid transparent;
}
.ute-nav a:hover { color: var(--ink); }
.ute-nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--warm); }
.ute-top-spacer { flex: 1; }
.ute-top-actions { display: flex; gap: 6px; }

.ute-iconbtn {
  width: 34px; height: 34px; display: grid; place-items: center;
  background: var(--surface); border: 1px solid var(--ink); cursor: pointer; padding: 0;
}
.ute-iconbtn:hover { background: var(--paper-2); }
.ute-iconbtn svg { width: 16px; height: 16px; }

/* Segmented controls */
.ute-seg { display: inline-flex; gap: 2px; background: var(--ink); border: 1px solid var(--ink); }
.ute-seg button {
  padding: 8px 14px; border: 0; cursor: pointer; background: var(--surface); color: var(--ink);
  font: 600 11.5px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.06em;
  transition: background .15s ease, color .15s ease;
}
.ute-seg button:hover { background: var(--paper-2); }
.ute-seg button.is-on { background: var(--ink); color: var(--paper); }
.ute-seg button.is-on[data-mode="elec"] { background: var(--elec); }
.ute-seg.ute-view-toggle button { padding: 6px 12px; font-size: 10.5px; }

/* ---------- Sections ---------- */
.ute-section { padding: 20px 24px; border-bottom: 1px solid var(--ink); }
.ute-section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.ute-section h2 { font-size: 20px; font-weight: 600; letter-spacing: -0.015em; }
.ute-sub { color: var(--mute); font-size: 13px; margin: 4px 0 0; }
.ute-head-tools { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

.ute-legend {
  display: inline-flex; align-items: center; gap: 6px;
  font: 500 10.5px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute);
}
.ute-legend i { width: 10px; height: 10px; border-radius: 50%; background: var(--warm); display: inline-block; border: 1.5px solid var(--surface); box-shadow: 0 0 0 1px var(--warm); }
.ute-legend i.is-eng { box-shadow: 0 0 0 1px #2A4FE0; }

/* Chips */
.ute-chips { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.ute-chip {
  padding: 5px 11px; background: var(--surface); border: 1px solid var(--line); cursor: pointer;
  font: 600 10.5px/1.2 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink);
  transition: border-color .15s ease, background .15s ease;
}
.ute-chip:hover { border-color: var(--ink); }
.ute-chip.is-on { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.ute-chip.is-action { border-color: var(--warm); color: var(--warm); }
.ute-chip.is-action:hover { background: #FDF0EA; }

/* ---------- Overview ---------- */
.ute-moto-wrap {
  position: relative;
  background:
    linear-gradient(var(--line-soft) 1px, transparent 1px) 0 0 / 48px 48px,
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px) 0 0 / 48px 48px,
    var(--paper);
  border: 1px solid var(--line);
  overflow: hidden;
}
.ute-moto-wrap.is-3d { background: #FFFFFF; }
.ute-moto-svg { display: block; width: 100%; height: auto; }
.ute-moto-scroll { overflow-x: auto; }
.ute-moto-scroll .ute-moto-svg { min-width: 760px; }

.ute-shape { cursor: pointer; transition: opacity .2s ease; outline: none; }
.ute-shape > * { transition: stroke .15s ease, fill .15s ease; }
.ute-shape:hover > *:not(.no-hl), .ute-shape:focus-visible > *:not(.no-hl) { stroke: var(--warm); }
.ute-shape.is-hl > *:not(.no-hl) { stroke: var(--warm); stroke-width: 2.5; }
.ute-shape.is-hl { filter: drop-shadow(0 0 8px rgba(194,80,42,.55)); }
.ute-shape.is-hl > [data-fillable] { fill: #F9DECB; }
.ute-moto-svg[data-cat]:not([data-cat="all"]) .ute-shape:not(.in-cat) { opacity: 0.22; }
.ute-moto-svg[data-cat]:not([data-cat="all"]) .ute-shape.in-cat { opacity: 1; }
.ute-moto-svg[data-cat]:not([data-cat="all"]) .ute-ix-dot { opacity: 0.4; }
@media (hover: hover) { .ute-moto-svg .ute-shape:hover { opacity: 1 !important; } }

.ute-callout { cursor: pointer; }
.ute-callout-leader { fill: none; stroke: var(--mute); stroke-width: 0.75; transition: stroke .15s ease; }
.ute-callout-dot { fill: var(--surface); stroke: var(--mute); stroke-width: 1; }
.ute-callout-label {
  fill: var(--mute); font-family: var(--mono); font-size: 10.5px; font-weight: 500; letter-spacing: 0.08em;
  transition: fill .15s ease;
}
.ute-callout:hover .ute-callout-leader, .ute-callout.is-hl .ute-callout-leader { stroke: var(--warm); }
.ute-callout:hover .ute-callout-dot, .ute-callout.is-hl .ute-callout-dot { stroke: var(--warm); fill: var(--warm); }
.ute-callout:hover .ute-callout-label, .ute-callout.is-hl .ute-callout-label { fill: var(--warm); font-weight: 700; }

.ute-ix-dot {
  pointer-events: none; fill: var(--warm); stroke: var(--surface); stroke-width: 1.5;
  animation: ute-ix-pulse 2s ease-in-out infinite;
}
@keyframes ute-ix-pulse { 0%,100% { r: 5; opacity: .95; } 50% { r: 7; opacity: .65; } }

/* ---------- Component view ---------- */
.ute-cview { padding: 20px 24px; border-bottom: 1px solid var(--ink); }
.ute-cview-empty {
  padding: 26px; text-align: center; border: 1px dashed var(--line);
  font: 500 11px/1.4 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute);
}
.ute-cview-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 12px; margin-bottom: 12px; }
.ute-cview-head h2 { font-size: 22px; font-weight: 700; letter-spacing: -0.015em; margin-top: 2px; }
.ute-cview-close {
  background: var(--surface); border: 1px solid var(--ink); padding: 7px 12px; cursor: pointer;
  font: 600 10.5px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase;
}
.ute-cview-close:hover { background: var(--paper-2); }

.ute-cview-stage {
  position: relative;
  background:
    linear-gradient(var(--line-soft) 1px, transparent 1px) 0 0 / 36px 36px,
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px) 0 0 / 36px 36px,
    var(--paper);
  border: 1px solid var(--ink);
  min-height: 560px;
  padding: 84px 20px 120px;
  display: grid; grid-template-rows: auto 1fr auto; gap: 14px;
}
.ute-cview-stage.no-action { padding-bottom: 24px; }
.ute-cview-stage svg.ute-cv-svg { width: 100%; height: auto; max-height: 460px; display: block; margin: 0 auto; }

.ute-status {
  position: absolute; top: 14px; left: 14px; right: 14px;
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 12px;
  padding: 10px 14px; background: var(--surface); border: 2px solid var(--warm);
}
.ute-status-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--warm); }
.ute-status-title { font: 700 13.5px/1.2 var(--sans); color: var(--warm); }
.ute-status-desc { font: 400 12.5px/1.35 var(--sans); color: var(--ink-soft); }
.ute-status-num { font: 700 15px/1 var(--mono); color: var(--ink); white-space: nowrap; }

.ute-hold-wrap { position: absolute; bottom: 16px; left: 50%; transform: translateX(-50%); text-align: center; }
.ute-hold {
  width: 190px; height: 58px; background: var(--go); color: #FFFFFF; cursor: pointer;
  font: 700 15px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase;
  border: 2px solid var(--ink); border-radius: 0; touch-action: none; user-select: none; -webkit-user-select: none;
  transition: transform 60ms ease, background 60ms ease;
}
.ute-hold.is-holding, .ute-hold:active { transform: translateY(2px); background: var(--go-press); }
.ute-hold-hint { margin-top: 6px; font: 500 10.5px/1 var(--mono); color: var(--mute); letter-spacing: 0.06em; text-transform: uppercase; }

.ute-cview-side { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; margin-top: 16px; }
.ute-card { background: var(--surface); border: 1px solid var(--ink); padding: 14px; min-width: 0; }
.ute-card h4 { font: 700 12px/1.2 var(--sans); letter-spacing: 0.06em; text-transform: uppercase; color: var(--mute); margin-bottom: 10px; }
.ute-card p { font-size: 13px; color: var(--ink-soft); }
.ute-card ul { margin: 0; padding-left: 16px; }
.ute-card li { margin: 2px 0; }
.ute-card .ute-render { width: 100%; height: auto; display: block; border: 1px solid var(--line); margin-bottom: 8px; }

.ute-stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 1px; background: var(--line); border: 1px solid var(--line);
}
.ute-stats .stat { background: var(--surface); padding: 10px 12px; min-width: 0; }
.ute-stats .stat-l { font: 500 10px/1.2 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute); }
.ute-stats .stat-v { font: 700 18px/1.1 var(--mono); letter-spacing: -0.01em; color: var(--ink); margin-top: 4px; display: flex; align-items: baseline; justify-content: space-between; gap: 6px; }
.ute-stats .stat-v small { font: 400 10.5px/1 var(--mono); color: var(--mute); }

.ute-sliders { display: grid; gap: 10px; }
.ute-slider label { display: flex; justify-content: space-between; font: 500 10px/1.2 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute); }
.ute-slider label b { color: var(--ink); font-weight: 700; font-size: 12px; }
.ute-slider input[type=range] { width: 100%; accent-color: var(--warm); margin: 4px 0 0; }

.ute-btnrow { display: flex; gap: 6px; flex-wrap: wrap; }
.ute-btn {
  padding: 8px 12px; background: var(--surface); border: 1px solid var(--ink); cursor: pointer;
  font: 600 10.5px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink);
}
.ute-btn:hover { background: var(--paper-2); }
.ute-btn.is-primary { background: var(--ink); color: var(--paper); }
.ute-btn.is-rec { background: var(--warm); border-color: var(--warm); color: var(--paper); }
.ute-btn:disabled { opacity: .45; cursor: default; }

/* Timing strip */
.ute-timing { position: relative; display: flex; height: 26px; border: 1px solid var(--ink); background: var(--surface); }
.ute-timing .seg {
  display: flex; align-items: center; justify-content: center; overflow: hidden; white-space: nowrap;
  font: 600 9.5px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink);
  border-right: 1px solid var(--ink);
}
.ute-timing .seg:last-of-type { border-right: 0; }
.ute-timing .needle { position: absolute; top: -4px; bottom: -4px; width: 2px; background: var(--ink); left: 0; }
.ute-stroke-badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 4px 10px; background: var(--ink); color: var(--paper);
  font: 600 10.5px/1.2 var(--mono); letter-spacing: 0.12em; text-transform: uppercase;
}
.ute-stroke-badge i { width: 8px; height: 8px; display: inline-block; }
.ute-under { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.ute-under .ute-timing { flex: 1; min-width: 240px; }

/* Wiring */
.ute-wire-pop {
  position: absolute; top: 84px; right: 18px; width: 230px; background: var(--surface); border: 1px solid var(--ink);
  padding: 10px 12px; pointer-events: none; opacity: 0; transition: opacity .15s ease; z-index: 3;
}
.ute-wire-pop.is-on { opacity: 1; }
.ute-wire-pop h5 { margin: 0 0 6px; font: 700 13px/1.2 var(--sans); color: var(--warm); }
.ute-wire-pop dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 3px 10px; font: 500 11px/1.3 var(--mono); }
.ute-wire-pop dt { color: var(--mute); text-transform: uppercase; letter-spacing: 0.06em; font-size: 10px; }
.ute-wire-pop dd { margin: 0; color: var(--ink); text-align: right; }
.ute-wire-node { cursor: pointer; }
.ute-wire-node rect { transition: stroke .15s ease, fill .15s ease; }
.ute-wire-node:hover rect, .ute-wire-node:focus rect { stroke: var(--warm); stroke-width: 2; fill: #FDF0EA; }
.ute-wire-legend { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; font: 500 10px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute); }
.ute-wire-legend span { display: inline-flex; align-items: center; gap: 6px; }
.ute-wire-legend svg { width: 26px; height: 6px; }

/* ---------- Rider ---------- */
.ute-rider-wrap { position: relative; background: var(--surface); border: 1px solid var(--ink); overflow: hidden; }
.ute-rider-wrap svg { display: block; width: 100%; height: auto; touch-action: none; user-select: none; -webkit-user-select: none; }
.ute-press { cursor: pointer; }
.ute-press:hover > .hit-outline { stroke: var(--warm); }
.ute-toast {
  position: absolute; top: 12px; left: 50%; transform: translate(-50%, -6px); opacity: 0; pointer-events: none;
  background: var(--warm); color: var(--paper); padding: 8px 14px;
  font: 700 12px/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase;
  transition: opacity .18s ease, transform .18s ease;
}
.ute-toast.is-on { opacity: 1; transform: translate(-50%, 0); }
.ute-dash { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px; background: var(--ink); border: 1px solid var(--ink); border-top: 0; }
.ute-dash .cell { background: var(--paper-2); padding: 8px 12px; }
.ute-dash .cell .l { font: 500 10px/1.2 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute); }
.ute-dash .cell .v { font: 700 18px/1.2 var(--mono); color: var(--ink); }
.ute-rider-hints { margin-top: 8px; color: var(--mute); font: 500 10.5px/1.4 var(--mono); letter-spacing: 0.04em; }

/* ---------- Dyno ---------- */
.ute-dyno-charts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.ute-dyno-cell { background: var(--surface); border: 1px solid var(--ink); padding: 10px 12px; }
.ute-dyno-cell header { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 4px; }
.ute-dyno-cell header b { font: 700 16px/1 var(--mono); color: var(--ink); }
.ute-dyno-cell header b small { font: 400 10.5px/1 var(--mono); color: var(--mute); margin-left: 4px; }
.ute-dyno-cell svg { width: 100%; height: 110px; display: block; }
.ute-findings { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px; background: var(--ink); border: 1px solid var(--ink); margin-bottom: 10px; }
.ute-findings .cell { background: var(--paper-2); padding: 8px 10px; min-width: 0; }
.ute-findings .cell .l { font: 500 9.5px/1.2 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute); }
.ute-findings .cell .v { font: 700 14px/1.3 var(--mono); color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ---------- Footer ---------- */
.ute-footer {
  margin-top: auto; padding: 14px 24px; border-top: 1px solid var(--ink);
  display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap;
  font: 500 10.5px/1.4 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute);
}
.ute-footer a { color: var(--mute); }
.ute-section + .ute-footer, .ute-cview + .ute-footer { border-top: 0; }

/* ---------- Modal ---------- */
.ute-modal { position: fixed; inset: 0; z-index: 100; display: none; place-items: center; background: rgba(10,10,10,.35); padding: 16px; }
.ute-modal.is-open { display: grid; }
.ute-modal-box { background: var(--surface); border: 1px solid var(--ink); max-width: 520px; width: 100%; padding: 20px; max-height: 90dvh; overflow: auto; }
.ute-modal-box h3 { font-size: 18px; margin-bottom: 10px; }
.ute-kbd { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 12px 0; }
.ute-kbd kbd { font: 600 11px/1 var(--mono); border: 1px solid var(--ink); padding: 4px 7px; background: var(--paper-2); justify-self: start; }

/* ==========================================================================
   Learn + Quiz pages
   ========================================================================== */
.ute-doc { display: grid; grid-template-columns: 240px 1fr; flex: 1; }
.ute-toc { border-right: 1px solid var(--ink); padding: 20px 16px; position: sticky; top: 55px; align-self: start; max-height: calc(100dvh - 55px); overflow: auto; }
.ute-toc ol { list-style: none; margin: 10px 0 0; padding: 0; counter-reset: toc; }
.ute-toc li { counter-increment: toc; }
.ute-toc a {
  display: grid; grid-template-columns: 24px 1fr; gap: 4px; padding: 7px 6px; text-decoration: none; color: var(--ink-soft);
  border-left: 2px solid transparent; font-size: 13px;
}
.ute-toc a::before { content: counter(toc, decimal-leading-zero); font: 600 10.5px/1.6 var(--mono); color: var(--mute); }
.ute-toc a:hover { background: var(--paper-2); }
.ute-toc a.is-on { border-left-color: var(--warm); background: var(--surface); color: var(--ink); font-weight: 600; }

.ute-main { min-width: 0; }
.ute-hero { padding: 32px 32px 24px; border-bottom: 1px solid var(--ink); background: var(--paper-2); }
.ute-hero h1 { font-size: 32px; font-weight: 700; letter-spacing: -0.02em; max-width: 760px; }
.ute-hero p { font-size: 15px; max-width: 680px; margin-top: 10px; }

.ute-chapter { padding: 32px; border-bottom: 1px solid var(--ink); scroll-margin-top: 60px; }
.ute-chapter-kicker { display: flex; gap: 10px; align-items: center; margin-bottom: 8px; }
.ute-chapter-num { font: 700 11px/1 var(--mono); background: var(--ink); color: var(--paper); padding: 5px 8px; letter-spacing: 0.08em; }
.ute-chapter h2 { font-size: 26px; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 10px; }
.ute-chapter .lead { font-size: 15.5px; line-height: 1.55; max-width: 760px; color: var(--ink-soft); }
.ute-chapter h3 { font-size: 16px; font-weight: 700; margin: 22px 0 8px; }
.ute-chapter .prose { max-width: 760px; font-size: 14.5px; line-height: 1.6; }
.ute-chapter .prose p { margin-bottom: 12px; }
.ute-chapter .prose strong { color: var(--ink); }

.ute-figure { margin: 20px 0; border: 1px solid var(--ink); background: var(--surface); }
.ute-figure-stage {
  position: relative; padding: 16px;
  background:
    linear-gradient(var(--line-soft) 1px, transparent 1px) 0 0 / 36px 36px,
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px) 0 0 / 36px 36px,
    var(--paper);
}
.ute-figure-stage svg { display: block; width: 100%; height: auto; max-height: 420px; margin: 0 auto; }
.ute-figure-controls { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; padding: 12px 16px; border-top: 1px solid var(--ink); }
.ute-figure-controls .ute-slider { flex: 1; min-width: 180px; }
.ute-figure-cap { padding: 10px 16px; border-top: 1px solid var(--line); font-size: 13px; color: var(--ink-soft); background: var(--paper-2); min-height: 42px; }
.ute-figure-cap b { color: var(--warm); }
.ute-figure-img { display: block; max-width: 100%; height: auto; margin: 0 auto; }

.ute-keys { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); margin: 18px 0; }
.ute-keys .k { background: var(--surface); padding: 12px 14px; }
.ute-keys .k .l { font: 500 10px/1.2 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute); }
.ute-keys .k .v { font: 700 18px/1.2 var(--mono); color: var(--ink); margin: 4px 0; }
.ute-keys .k p { font-size: 12.5px; margin: 0; }

.ute-callbox { border-left: 3px solid var(--warm); background: var(--surface); padding: 12px 16px; margin: 16px 0; max-width: 760px; }
.ute-callbox.is-elec { border-left-color: var(--elec); }
.ute-callbox h4 { font: 700 11px/1.2 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--warm); margin-bottom: 6px; }
.ute-callbox.is-elec h4 { color: var(--elec); }
.ute-callbox p:last-child { margin: 0; }

.ute-chapter-foot { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }
.ute-linkbtn {
  display: inline-flex; align-items: center; gap: 8px; padding: 9px 14px; text-decoration: none;
  border: 1px solid var(--ink); background: var(--surface); color: var(--ink);
  font: 600 10.5px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase;
}
.ute-linkbtn:hover { background: var(--paper-2); }
.ute-linkbtn.is-warm { border-color: var(--warm); color: var(--warm); }

/* Quiz blocks (shared by learn checks + quiz page) */
.ute-q { background: var(--surface); border: 1px solid var(--ink); padding: 16px; margin: 12px 0; max-width: 760px; }
.ute-q-meta { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 8px; }
.ute-q-text { font: 600 16px/1.4 var(--sans); color: var(--ink); margin-bottom: 12px; }
.ute-q-opts { display: grid; gap: 6px; }
.ute-opt {
  display: grid; grid-template-columns: 28px 1fr auto; gap: 10px; align-items: center; text-align: left;
  padding: 10px 12px; background: var(--paper); border: 1px solid var(--line); cursor: pointer; font-size: 14px; color: var(--ink-soft);
  transition: border-color .15s ease, background .15s ease;
}
.ute-opt:hover:not(:disabled) { border-color: var(--ink); background: var(--surface); }
.ute-opt .letter { font: 700 11px/1 var(--mono); width: 24px; height: 24px; display: grid; place-items: center; border: 1px solid var(--ink); background: var(--surface); color: var(--ink); }
.ute-opt .mark { font: 700 11px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; }
.ute-opt:disabled { cursor: default; }
.ute-opt.is-right { border-color: var(--accent); background: #E4F1EB; color: var(--ink); }
.ute-opt.is-right .letter { background: var(--accent); color: #fff; border-color: var(--accent); }
.ute-opt.is-right .mark { color: var(--accent); }
.ute-opt.is-wrong { border-color: var(--warm); background: #FDF0EA; color: var(--ink); }
.ute-opt.is-wrong .letter { background: var(--warm); color: #fff; border-color: var(--warm); }
.ute-opt.is-wrong .mark { color: var(--warm); }
.ute-opt.is-dim { opacity: .55; }
.ute-q-explain { margin-top: 12px; padding: 10px 12px; border-left: 3px solid var(--accent); background: var(--paper-2); font-size: 13.5px; display: none; }
.ute-q-explain.is-wrong { border-left-color: var(--warm); }
.ute-q-explain.is-on { display: block; }
.ute-q-explain b { color: var(--ink); }

.ute-quiz-wrap { max-width: 820px; width: 100%; margin: 0 auto; padding: 24px; }
.ute-progress { height: 6px; background: var(--line-soft); border: 1px solid var(--ink); margin: 10px 0 16px; }
.ute-progress > i { display: block; height: 100%; background: var(--warm); transition: width .25s ease; }
.ute-scoreline { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; align-items: center; }
.ute-result { background: var(--surface); border: 1px solid var(--ink); padding: 20px; }
.ute-result .big { font: 700 44px/1 var(--mono); color: var(--ink); }
.ute-review { margin-top: 16px; display: grid; gap: 8px; }
.ute-review-item { border: 1px solid var(--line); background: var(--paper); padding: 10px 12px; font-size: 13px; }
.ute-review-item.is-wrong { border-left: 3px solid var(--warm); }
.ute-review-item.is-right { border-left: 3px solid var(--accent); }
.ute-review-item b { color: var(--ink); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .ute-cview-side { grid-template-columns: 1fr; }
  .ute-doc { grid-template-columns: 1fr; }
  .ute-toc { position: static; max-height: none; border-right: 0; border-bottom: 1px solid var(--ink); }
  .ute-toc ol { display: flex; flex-wrap: wrap; gap: 4px; }
  .ute-toc a { border-left: 0; border: 1px solid var(--line); padding: 5px 8px; }
  .ute-toc a.is-on { border-color: var(--warm); }
}
@media (max-width: 720px) {
  .ute-dyno-charts { grid-template-columns: 1fr; }
  .ute-dash { grid-template-columns: repeat(3, 1fr); }
  .ute-cview-stage { min-height: 460px; padding: 104px 10px 120px; }
}
@media (max-width: 540px) {
  .ute-top { padding: 8px 14px; gap: 10px; }
  .ute-brand-sub { display: none; }
  .ute-section, .ute-cview { padding: 16px 14px; }
  .ute-chip { padding: 4px 8px; }
  .ute-seg button { padding: 7px 9px; font-size: 10.5px; }
  .ute-dash .cell .v { font-size: 15px; }
  .ute-findings { grid-template-columns: repeat(2, 1fr); }
  .ute-hero, .ute-chapter { padding: 22px 16px; }
  .ute-hero h1 { font-size: 24px; }
  .ute-chapter h2 { font-size: 21px; }
  .ute-quiz-wrap { padding: 16px 14px; }
  .ute-status { grid-template-columns: auto 1fr; }
  .ute-status-num { grid-column: 1 / -1; }
}
@media (prefers-reduced-motion: reduce) {
  .ute-ix-dot { animation: none; }
  * { scroll-behavior: auto !important; }
}

.ute-card .ute-stats { grid-template-columns: repeat(2, 1fr); }

/* ---------- Learn / Quiz additions ---------- */
.ute-toc-sub { margin: 2px 0 8px 18px !important; counter-reset: none !important; }
.ute-toc-sub li { counter-increment: none !important; }
.ute-toc-sub a { grid-template-columns: 1fr !important; font-size: 12.5px !important; padding: 5px 8px !important; }
.ute-toc-sub a::before { content: none !important; }
.ute-toc-foot { margin-top: 16px; }
.ute-hero .ute-label { display: block; margin-bottom: 8px; }
.ute-modcards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; margin: 14px 0 8px; }
.ute-modcard { display: flex; flex-direction: column; gap: 8px; padding: 16px; background: var(--surface); border: 1px solid var(--ink); text-decoration: none; color: var(--ink-soft); transition: background .15s ease, border-color .15s ease; }
.ute-modcard:hover { background: var(--paper-2); border-color: var(--warm); }
.ute-modcard .ute-chapter-num { align-self: flex-start; }
.ute-modcard h3 { font-size: 17px; margin: 0; }
.ute-modcard p { font-size: 13.5px; margin: 0; flex: 1; }
.ute-steps { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); margin: 14px 0; max-width: 760px; }
.ute-step { display: grid; grid-template-columns: 36px 1fr; gap: 12px; background: var(--surface); padding: 12px 14px; }
.ute-step > b { font: 700 13px/1 var(--mono); width: 28px; height: 28px; display: grid; place-items: center; background: var(--ink); color: var(--paper); }
.ute-step strong { color: var(--ink); display: block; margin-bottom: 2px; }
.ute-step p { margin: 0; font-size: 14px; }
.ute-table-wrap { overflow-x: auto; margin: 14px 0; max-width: 100%; }
.ute-table { border-collapse: collapse; width: 100%; background: var(--surface); font-size: 13.5px; }
.ute-table th { font: 600 10.5px/1.3 var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--paper); background: var(--ink); text-align: left; padding: 8px 10px; }
.ute-table td { padding: 8px 10px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
.ute-table tr:nth-child(even) td { background: #FFFFFF; }
.ute-callbox.is-safety { border-left-color: #B8322A; background: #FDF1EE; }
.ute-callbox.is-safety h4 { color: #B8322A; }
.ute-figure-note { font-size: 13px; color: var(--mute); margin-top: -10px !important; }
.ute-figure-note .ute-label { color: var(--warm); margin-right: 6px; }
.ute-fig-stats { border-left: 0; border-right: 0; }
.ute-figure .ute-stats .stat-v { font-size: 16px; }
.ute-illus .ute-figure-stage { background: #FFFFFF; }
.ute-check .ute-q { border-color: var(--warm); }
.ute-loads { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 6px; }
.ute-load { display: flex; gap: 8px; align-items: center; background: var(--surface); border: 1px solid var(--line); padding: 7px 10px; cursor: pointer; font-size: 13px; }
.ute-load b { margin-left: auto; font: 600 11px/1 var(--mono); color: var(--mute); }
.ute-load input { accent-color: var(--warm); }
.ute-pager { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.ute-quiz-title { font-size: 30px; letter-spacing: -0.02em; margin: 6px 0 4px; }
.ute-quiz-h { font: 700 12px/1.2 var(--sans); letter-spacing: 0.06em; text-transform: uppercase; color: var(--mute); margin: 20px 0 8px; }
.ute-btn-lg { padding: 12px 20px; font-size: 12px; }
.ute-review-item a { font: 600 10.5px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--warm); }
.ute-review-item div { margin-top: 6px; }
.ute-toc .ute-toc-foot a { display: inline-flex; border: 1px solid var(--ink); padding: 9px 14px; }
.ute-toc .ute-toc-foot a::before { content: none; }
.ute-sources { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 12px; margin: 14px 0; }
.ute-source { background: var(--surface); border: 1px solid var(--ink); padding: 16px; display: flex; flex-direction: column; gap: 8px; }
.ute-source h3 { font-size: 17px; margin: 0; }
.ute-source p { margin: 0; font-size: 13.5px; }
.ute-source .ute-cite { font-size: 12.5px; color: var(--mute); }
.ute-source .ute-linkbtn { align-self: flex-start; margin-top: auto; }

/* ==========================================================================
   Real assets: 3D viewer, course plates, hotspots, cockpit
   ========================================================================== */
.ute-moto-stage { position: relative; }
.ute-moto-wrap.is-3d { background: #FFFFFF; }
.mz3d { position: relative; width: 100%; }
.mz3d-bike { height: clamp(320px, 52vw, 600px); }
.mz3d-part { height: 380px; background: #FFFFFF; border: 1px solid var(--line); }
.mz3d-stage { height: clamp(320px, 46vw, 480px); }
.mz3d-canvas { display: block; width: 100%; height: 100%; cursor: grab; touch-action: none; outline: none; }
.mz3d-canvas:active { cursor: grabbing; }
.mz3d-status { position: absolute; inset: 0; display: grid; place-items: center; margin: 0; font: 500 11px/1.4 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--mute); pointer-events: none; text-align: center; padding: 16px; }
.mz3d-status[hidden] { display: none; }
.mz3d-tip { position: absolute; z-index: 4; pointer-events: none; background: var(--ink); color: var(--paper); padding: 6px 9px; font: 600 12px/1.3 var(--sans); max-width: 240px; }
.mz3d-tip i { font: 600 9.5px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: #F2A27F; font-style: normal; margin-left: 6px; }
.mz3d-tip small { display: block; font: 500 10px/1.3 var(--mono); color: #CFCBC0; text-transform: uppercase; letter-spacing: .06em; margin-top: 2px; }
.mz3d-bar { position: absolute; left: 10px; right: 10px; bottom: 10px; display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; pointer-events: none; }
.mz3d-bar > * { pointer-events: auto; }
.mz3d-hint { font: 500 10.5px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--mute); background: rgba(255,255,255,.85); padding: 6px 8px; }
.ute-cam button { padding: 5px 10px; font-size: 10px; }
.mz3d-cap { margin: 8px 0 6px; font: 500 11px/1.4 var(--mono); letter-spacing: .04em; color: var(--mute); }
.mz-variants .ute-seg { flex-wrap: wrap; margin-bottom: 8px; }
.mz-variants .ute-seg button { padding: 6px 10px; font-size: 10px; }
.mz-subparts { display: flex; flex-wrap: wrap; gap: 4px; }
.mz-sub { padding: 4px 8px; background: var(--paper); border: 1px solid var(--line); cursor: pointer; font: 500 11px/1.2 var(--sans); color: var(--ink-soft); }
.mz-sub:hover, .mz-sub.is-on { border-color: var(--warm); color: var(--warm); background: #FDF0EA; }
.ute-cview-stage .mz-variants { position: relative; z-index: 2; }
.ute-cview-stage .mz3d-cap { text-align: center; }
.ute-cview-stage .mz-subparts { justify-content: center; }

/* Course plate with hotspots */
.mz-plate { position: relative; width: 100%; background: #FFFFFF; }
.mz-plate img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; user-select: none; }
.mz-hot { position: absolute; width: 22px; height: 22px; margin: -11px 0 0 -11px; border-radius: 50%; border: 2px solid #FFFFFF; background: var(--brand); box-shadow: 0 0 0 1px var(--brand); cursor: pointer; padding: 0; transition: transform .15s ease, opacity .2s ease, background .15s ease; }
.mz-hot.is-ix { background: var(--warm); box-shadow: 0 0 0 1px var(--warm); animation: mz-hot-pulse 2s ease-in-out infinite; }
@keyframes mz-hot-pulse { 0%,100% { box-shadow: 0 0 0 1px var(--warm), 0 0 0 0 rgba(194,80,42,.45); } 50% { box-shadow: 0 0 0 1px var(--warm), 0 0 0 7px rgba(194,80,42,0); } }
.mz-hot:hover, .mz-hot:focus-visible, .mz-hot.is-hl { transform: scale(1.35); background: var(--warm); outline: none; z-index: 3; }
.mz-hot-tip { position: absolute; left: 50%; bottom: calc(100% + 8px); transform: translateX(-50%); white-space: nowrap; background: var(--ink); color: var(--paper); font: 600 11px/1 var(--sans); padding: 5px 8px; opacity: 0; pointer-events: none; transition: opacity .12s ease; }
.mz-hot:hover .mz-hot-tip, .mz-hot:focus-visible .mz-hot-tip, .mz-hot.is-hl .mz-hot-tip { opacity: 1; }
.mz-plate[data-cat]:not([data-cat="all"]) .mz-hot:not(.in-cat) { opacity: .2; }

/* Parts index under the overview */
.mz-part-index { display: flex; flex-wrap: wrap; gap: 5px; align-items: center; margin-top: 10px; }
.mz-part-index .ute-label { margin-right: 6px; }
.mz-part { padding: 4px 9px; background: var(--surface); border: 1px solid var(--line); cursor: pointer; font: 500 12px/1.3 var(--sans); color: var(--ink-soft); transition: opacity .2s ease; }
.mz-part.is-ix { border-color: #E8B9A5; }
.mz-part.is-ix::before { content: ""; display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--warm); margin-right: 6px; vertical-align: 1px; }
.mz-part:hover { border-color: var(--ink); }
.mz-part.is-hl { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.mz-part-index[data-cat]:not([data-cat="all"]) .mz-part:not(.in-cat) { opacity: .3; }

/* Assets panel in the component view */
.mz-assets { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 16px; margin-top: 16px; }
.mz-asset-side { display: grid; gap: 16px; align-content: start; }
.mz-plate-thumbs { display: grid; gap: 8px; }
.mz-plate-thumb { display: grid; grid-template-columns: 96px 1fr; gap: 10px; align-items: center; padding: 6px; background: var(--paper); border: 1px solid var(--line); cursor: zoom-in; text-align: left; font: 400 12.5px/1.35 var(--sans); color: var(--ink-soft); }
.mz-plate-thumb:hover { border-color: var(--warm); }
.mz-plate-thumb img { width: 96px; height: 64px; object-fit: contain; background: #FFFFFF; border: 1px solid var(--line-soft); }
.mz-plate-thumb b { font-family: var(--mono); color: var(--brand); margin-right: 4px; }

/* Lightbox */
.mz-lightbox { position: fixed; inset: 0; z-index: 120; display: none; flex-direction: column; align-items: center; justify-content: center; gap: 12px; background: rgba(10,10,10,.72); padding: 20px; }
.mz-lightbox.is-open { display: flex; }
.mz-lightbox figure { margin: 0; background: #FFFFFF; border: 1px solid var(--ink); padding: 12px; max-width: min(1400px, 100%); max-height: calc(100dvh - 90px); display: flex; flex-direction: column; }
.mz-lightbox img { max-width: 100%; max-height: calc(100dvh - 150px); object-fit: contain; }
.mz-lightbox figcaption { font: 500 12px/1.4 var(--mono); color: var(--ink-soft); padding-top: 8px; }

/* Cockpit iframe */
.mz-cockpit { display: block; width: 100%; min-height: 640px; border: 0; background: transparent; }

/* Learn: plates and 3D blocks */
.mz-learn-plate { cursor: zoom-in; }
.mz-learn-plate .ute-figure-stage { background: #FFFFFF; }
.mz-learn-model .mz3d-part { height: 360px; border: 0; }
.mz-learn-model .ute-figure-stage { padding: 0; }
.mz-learn-model .mz-variants { padding: 10px 12px 0; }
.mz-learn-model .mz-subparts { padding: 0 12px 10px; }
.mz-learn-model .mz3d-cap { padding: 0 12px; }

/* Model library */
.mz-lib { display: grid; grid-template-columns: 300px minmax(0, 1fr); flex: 1; min-height: 0; }
.mz-lib-list { border-right: 1px solid var(--ink); padding: 16px; overflow: auto; max-height: calc(100dvh - 55px); position: sticky; top: 55px; }
.mz-lib-list h3 { font: 700 11px/1.2 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--mute); margin: 16px 0 6px; }
.mz-lib-list button { display: block; width: 100%; text-align: left; padding: 6px 8px; border: 0; border-left: 2px solid transparent; background: none; cursor: pointer; font: 400 13px/1.35 var(--sans); color: var(--ink-soft); }
.mz-lib-list button:hover { background: var(--paper-2); }
.mz-lib-list button.is-on { border-left-color: var(--warm); background: var(--surface); color: var(--ink); font-weight: 600; }
.mz-lib-main { padding: 16px 20px; min-width: 0; }
.mz-lib-main .mz3d-part { height: clamp(360px, 62vh, 720px); }
@media (max-width: 960px) {
  .mz-assets { grid-template-columns: 1fr; }
  .mz-lib { grid-template-columns: 1fr; }
  .mz-lib-list { position: static; max-height: 260px; border-right: 0; border-bottom: 1px solid var(--ink); }
}
@media (max-width: 540px) {
  .mz-hot { width: 18px; height: 18px; margin: -9px 0 0 -9px; }
  .mz3d-part { height: 300px; }
  .mz3d-hint { display: none; }
}
@media (prefers-reduced-motion: reduce) { .mz-hot.is-ix { animation: none; } }
.mz3d-poster { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; pointer-events: none; opacity: .9; }
.mz3d-poster[hidden] { display: none; }
.mz-learn-photo .ute-figure-stage { padding: 0; background: #111; }
.mz-learn-photo img { display: block; width: 100%; height: auto; max-height: 560px; object-fit: contain; }
.mz-lib-render { display: grid; grid-template-columns: 40px 1fr; gap: 8px; align-items: center; }
.mz-lib-render img { width: 40px; height: 30px; object-fit: contain; background: #fff; border: 1px solid var(--line-soft); }
.mz-gloss-filter { width: 100%; max-width: 420px; padding: 9px 12px; border: 1px solid var(--ink); background: var(--surface); font: 400 14px/1.3 var(--sans); margin: 4px 0 14px; }
.mz-gloss { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); margin: 0; }
.mz-gloss > div { background: var(--surface); padding: 10px 12px; }
.mz-gloss dt { font: 700 13.5px/1.3 var(--sans); color: var(--ink); margin-bottom: 3px; }
.mz-gloss dd { margin: 0; font-size: 13.5px; color: var(--ink-soft); }
.mz-reading { max-width: 860px; padding-left: 18px; font-size: 14px; }
.mz-reading li { margin: 4px 0; }
.ute-callbox.is-try { border-left-color: var(--intake); }
.ute-callbox.is-try h4 { color: var(--intake); }
.mz-hero-cover { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 24px; align-items: center; }
.mz-cover { width: 220px; height: 280px; object-fit: cover; border: 1px solid var(--ink); display: block; }
.mz-modcard-img { width: calc(100% + 32px); margin: -16px -16px 4px; height: 160px; object-fit: cover; border-bottom: 1px solid var(--ink); }
@media (max-width: 720px) { .mz-hero-cover { grid-template-columns: 1fr; } .mz-cover { width: 100%; height: 200px; } }

/* ---------- Ride: how-to strip ---------- */
.mz-howto { background: var(--surface); border: 1px solid var(--ink); padding: 12px 14px; margin-bottom: 12px; }
.mz-howto-head { display: flex; gap: 6px 14px; align-items: baseline; flex-wrap: wrap; margin-bottom: 10px; }
.mz-howto-note { font-size: 13px; color: var(--ink-soft); }
.mz-steps { list-style: none; margin: 0 0 10px; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); counter-reset: st; }
.mz-steps li { counter-increment: st; background: var(--paper); padding: 8px 10px; display: grid; gap: 4px; align-content: start; position: relative; transition: background .2s ease; }
.mz-steps li::before { content: counter(st); position: absolute; top: 8px; right: 9px; font: 600 10.5px/1 var(--mono); color: var(--mute); }
.mz-steps li b { font: 700 12px/1 var(--mono); color: var(--ink); background: var(--surface); border: 1px solid var(--ink); padding: 4px 6px; justify-self: start; }
.mz-steps li span { font-size: 12.5px; line-height: 1.35; color: var(--ink-soft); padding-right: 12px; }
.mz-steps li.is-now { background: #FDF0EA; box-shadow: inset 0 0 0 2px var(--warm); }
.mz-steps li.is-now b { border-color: var(--warm); color: var(--warm); }
.mz-steps li.is-done { background: #E4F1EB; }
.mz-steps li.is-done::before { content: "✓"; color: var(--accent); font-size: 13px; }
.mz-keymap { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 12.5px; color: var(--ink-soft); }
.mz-keymap span { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.mz-keymap kbd { font: 600 11px/1 var(--mono); min-width: 22px; text-align: center; border: 1px solid var(--ink); border-bottom-width: 2px; padding: 3px 5px; background: var(--paper-2); color: var(--ink); transition: background .08s ease, color .08s ease; }
.mz-keymap kbd.is-held { background: var(--warm); border-color: var(--warm); color: #FFFFFF; }
.mz-cockpit { min-height: 0; }

/* ---------- Dyno: recording ---------- */
.ute-btn:disabled { opacity: .45; cursor: not-allowed; }
.ute-findings .cell .v.is-rec { color: var(--warm); }
.ute-dyno-body { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 10px; align-items: start; }
.ute-dyno-cell.is-wide { grid-column: 1 / -1; }
.ute-dyno-cell header { gap: 10px; flex-wrap: wrap; }
.ute-dyno-cell header .ute-label small { text-transform: none; letter-spacing: 0; font-size: 10.5px; }
.dy-vals { display: inline-flex; gap: 12px; flex-wrap: wrap; }
.dy-val { display: inline-flex; align-items: baseline; gap: 5px; font: 700 15px/1 var(--mono); color: var(--ink); font-variant-numeric: tabular-nums; }
.dy-val i { width: 10px; height: 3px; display: inline-block; align-self: center; }
.dy-val em { font: 500 10px/1 var(--mono); font-style: normal; color: var(--mute); text-transform: uppercase; letter-spacing: .06em; }
.ute-dyno-plot { display: grid; grid-template-columns: 34px minmax(0, 1fr); grid-template-rows: 120px 16px; }
.ute-dyno-cell.is-wide .ute-dyno-plot { grid-template-rows: 90px 16px; }
.dy-y { position: relative; border-right: 1px solid var(--line); }
.dy-y span { position: absolute; right: 5px; transform: translateY(-50%); font: 500 9.5px/1 var(--mono); color: var(--mute); }
.dy-area { position: relative; border-bottom: 1px solid var(--line); cursor: crosshair; touch-action: pan-y; }
.dy-area svg { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.dy-ev { position: absolute; left: 0; right: 0; top: -3px; height: 0; pointer-events: none; }
.dy-ev i { position: absolute; top: 0; width: 7px; height: 7px; margin-left: -3.5px; transform: rotate(45deg); border: 1px solid #FFFFFF; }
.dy-x { grid-column: 2; position: relative; }
.dy-x span { position: absolute; top: 3px; transform: translateX(-50%); font: 500 9.5px/1 var(--mono); color: var(--mute); white-space: nowrap; }
.dy-x span:first-child { transform: none; }
.ute-dyno-logbox { background: var(--surface); border: 1px solid var(--ink); padding: 10px 12px; display: flex; flex-direction: column; gap: 8px; }
.ute-dyno-log { list-style: none; margin: 0; padding: 0; max-height: 330px; overflow: auto; font-size: 12.5px; }
.ute-dyno-log li { display: grid; grid-template-columns: 58px 8px 1fr; gap: 8px; align-items: center; padding: 4px 0; border-bottom: 1px solid var(--line-soft); }
.ute-dyno-log li.is-empty { display: block; color: var(--mute); border: 0; }
.ute-dyno-log time { font: 500 11px/1 var(--mono); color: var(--mute); font-variant-numeric: tabular-nums; }
.ute-dyno-log i, .ute-dyno-legend i { width: 8px; height: 8px; display: inline-block; transform: rotate(45deg); }
.ute-dyno-legend { display: flex; flex-wrap: wrap; gap: 4px 10px; font: 500 10px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--mute); border-top: 1px solid var(--line-soft); padding-top: 8px; }
.ute-dyno-legend span { display: inline-flex; align-items: center; gap: 5px; }
@media (max-width: 960px) {
  .ute-dyno-body { grid-template-columns: 1fr; }
  .ute-dyno-log { max-height: 200px; }
}
@media (max-width: 540px) {
  .ute-findings { grid-template-columns: repeat(2, 1fr); }
  .mz-steps { grid-template-columns: 1fr 1fr; }
  .mz-keymap { gap: 6px 10px; font-size: 12px; }
}

/* Overview without WebGL: the bike's side render */
.mz3d-still { display: grid; place-items: center; }
.mz3d-still img { width: 100%; height: 100%; object-fit: contain; }
.mz3d-note { position: absolute; left: 10px; bottom: 10px; margin: 0; font: 500 10.5px/1.4 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--mute); background: rgba(255,255,255,.85); padding: 6px 8px; }
.mz-live { font-size: 12.5px; color: var(--mute); }
.mz-live.is-live { color: var(--accent); font-weight: 600; }
.mz-wiring-card { position: relative; display: block; background: #FFFFFF; }
.mz-wiring-card img { display: block; width: 100%; height: auto; max-height: 520px; object-fit: contain; }
.mz-wiring-card .ute-linkbtn { position: absolute; left: 12px; bottom: 12px; background: var(--surface); }
.mz-wiring-card:hover img { opacity: .92; }

/* ---------- Learn: one chapter per page, room to breathe ---------- */
.mz-page { max-width: 920px; margin: 0 auto; padding: 28px 40px 56px; }
.mz-crumbs { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; font: 500 11px/1.4 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--mute); margin-bottom: 14px; }
.mz-crumbs a { color: var(--mute); text-decoration: none; }
.mz-crumbs a:hover { color: var(--warm); }
.mz-crumbs b { color: var(--ink); font-weight: 600; }
.mz-progress { height: 4px; background: var(--line-soft); margin-bottom: 36px; }
.mz-progress > i { display: block; height: 100%; background: var(--warm); }
.mz-chapter { padding: 0; border-bottom: 0; }
.mz-chapter h2 { font-size: 34px; letter-spacing: -0.02em; margin: 6px 0 18px; line-height: 1.15; }
.mz-chapter .lead { font-size: 18px; line-height: 1.6; margin-bottom: 36px; color: var(--ink-soft); }
.mz-chapter .prose { font-size: 16px; line-height: 1.75; max-width: none; }
.mz-chapter .prose > p { margin: 0 0 22px; max-width: 720px; }
.mz-chapter .prose > h3 { font-size: 21px; margin: 56px 0 16px; padding-top: 28px; border-top: 1px solid var(--line-soft); }
.mz-chapter .prose > .ute-figure, .mz-chapter .prose > figure { margin: 40px 0; }
.mz-chapter .prose > .ute-keys, .mz-chapter .prose > .ute-steps, .mz-chapter .prose > .ute-table-wrap { margin: 32px 0; max-width: none; }
.mz-chapter .prose > .ute-callbox { margin: 32px 0; padding: 18px 22px; max-width: none; }
.mz-chapter .prose > .ute-check { margin: 44px 0; }
.mz-chapter .prose > .ute-check .ute-q { max-width: none; padding: 22px; }
.mz-chapter .ute-figure-note { margin-top: -24px !important; margin-bottom: 36px; }
.mz-chapter .ute-figure-cap { padding: 12px 18px; font-size: 14px; line-height: 1.55; }
.mz-chapter .ute-step { padding: 16px 18px; }
.mz-chapter .ute-step p { font-size: 15px; line-height: 1.6; }
.mz-chapter .ute-table td, .mz-chapter .ute-table th { padding: 11px 14px; }
.mz-pager { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 64px; padding-top: 28px; border-top: 1px solid var(--ink); }
.mz-pager a { display: flex; flex-direction: column; gap: 6px; padding: 18px 20px; border: 1px solid var(--ink); background: var(--surface); text-decoration: none; color: var(--ink); }
.mz-pager a b { font: 600 16px/1.35 var(--sans); }
.mz-pager a:hover { border-color: var(--warm); background: #FDF0EA; }
.mz-pager-next { text-align: right; }
.mz-chaplist { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 14px; }
.mz-chaplist a { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 20px; align-items: center; padding: 14px; background: var(--surface); border: 1px solid var(--ink); text-decoration: none; color: var(--ink-soft); }
.mz-chaplist a:hover { border-color: var(--warm); background: #FFFFFF; }
.mz-chaplist img, .mz-chaplist a > span { width: 180px; height: 110px; object-fit: contain; background: #FFFFFF; border: 1px solid var(--line-soft); display: block; }
.mz-chaplist h3 { font-size: 18px; margin: 6px 0 4px; }
.mz-chaplist p { margin: 0; font-size: 14px; line-height: 1.5; }
.ute-hero { padding: 44px 40px 36px; }
@media (max-width: 720px) {
  .mz-page { padding: 20px 16px 40px; }
  .mz-chapter h2 { font-size: 26px; }
  .mz-chapter .lead { font-size: 16.5px; }
  .mz-chapter .prose { font-size: 15.5px; }
  .mz-pager { grid-template-columns: 1fr; }
  .mz-chaplist a { grid-template-columns: 1fr; }
  .mz-chaplist img, .mz-chaplist a > span { width: 100%; height: 150px; }
  .mz-chaplist a > span { display: none; }
  .ute-hero { padding: 26px 16px; }
}

/* Phones: the section nav wraps to its own row and scrolls sideways instead of widening the page */
@media (max-width: 540px) {
  .ute-top { flex-wrap: wrap; }
  .ute-nav { order: 10; width: 100%; overflow-x: auto; scrollbar-width: none; }
}
.mz-gal { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; margin-top: 14px; }
.mz-gal-card { display: flex; flex-direction: column; gap: 8px; padding: 10px; background: var(--surface); border: 1px solid var(--ink); text-decoration: none; color: var(--ink); font: 600 13px/1.35 var(--sans); }
.mz-gal-card img { width: 100%; aspect-ratio: 5 / 4; object-fit: contain; background: #FFFFFF; }
.mz-gal-card:hover { border-color: var(--warm); box-shadow: 0 0 0 1px var(--warm); }
.ute-legend i.is-eng { box-shadow: 0 0 0 1px #2A4FE0; }
.mz-lib-page { flex: 1; }
.mz-lib-detail { max-width: 1280px; margin: 0 auto; padding: 24px 32px 48px; }
.mz-lib-title { font-size: 28px; letter-spacing: -0.02em; margin: 4px 0; }
.mz-lib-3d { height: clamp(360px, 62vh, 720px); }
@media (max-width: 720px) { .mz-lib-detail { padding: 16px; } }
.ute-nav .ute-nav-kids { margin-left: 14px; padding-left: 14px; border-left: 1px solid var(--line); color: var(--warm); }
.ute-nav .ute-nav-kids:hover { color: var(--ink); }
.mz-wl-tabs { margin-bottom: 10px; }
.mz-wl { display: block; width: 100%; min-height: 900px; border: 0; background: transparent; }

/* ---------- Light theme refinements ---------- */
body { font-size: 14px; font-variant-numeric: tabular-nums; }
.ute-top { background: #FFFFFF; border-bottom: 1px solid #E3E3E3; box-shadow: 0 1px 0 rgba(0,0,0,.02); }
.ute-label, .ute-chip, .ute-seg button, .ute-btn, .ute-linkbtn, .ute-nav a, .ute-cview-close { letter-spacing: 0.05em; }
.ute-nav a { font-size: 13px; font-weight: 600; }
.ute-section, .ute-cview { border-bottom: 1px solid #E5E5E5; }
.ute-hero { background: #FFFFFF; border-bottom: 1px solid #E5E5E5; }
.ute-card, .ute-dyno-cell, .ute-q, .ute-modcard, .mz-chaplist a, .mz-pager a, .mz-gal-card, .ute-figure, .ute-stats { border-color: #DADADA; }
.ute-cview-stage, .ute-moto-wrap, .ute-figure-stage { background: #FFFFFF; }
.ute-moto-wrap.is-3d, .mz3d-part { background: #FFFFFF; }
.ute-stats .stat-v, .ute-dash .cell .v, .ute-findings .cell .v, .ute-status-num { font-family: var(--sans); font-weight: 700; }
.ute-footer { background: #FFFFFF; border-top: 1px solid #E5E5E5; }
.ute-toc { background: #FFFFFF; }

/* ---------- Component view: model and working side by side ---------- */
.mz-cv-duo { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; align-items: stretch; }
.mz-cv-duo.is-basic { grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); }
.mz-cv-model { border: 1px solid #DADADA; background: #FFFFFF; padding: 12px; display: flex; flex-direction: column; min-width: 0; }
.mz-cv-model .mz3d-part { flex: 1; min-height: 420px; height: auto; border: 0; background: #FFFFFF; }
.mz-cv-tag { font: 600 12px/1.3 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--mute); margin-bottom: 8px; }
.mz-cv-info { padding: 18px; }
.mz-cv-lead { font-size: 16px; line-height: 1.6; color: var(--ink); }
.mz-cv-duo .ute-cview-stage { min-width: 0; }
.mz-cv-banner { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 16px; margin-top: 16px; padding: 14px 16px; background: #FFFFFF; border: 1px solid #E5E5E5; }
.mz-cv-banner .mz-plate-thumbs { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.mz-cv-banner-links p { margin: 0 0 8px; }
.mz-cv-banner:has(> :only-child) { grid-template-columns: 1fr; }
@media (max-width: 960px) {
  .mz-cv-duo, .mz-cv-duo.is-basic, .mz-cv-banner { grid-template-columns: 1fr; }
  .mz-cv-model .mz3d-part { min-height: 320px; }
}
/* Sources: asset package grid, all cards the same size */
.mz-asset-grid { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); align-items: stretch; }
.mz-asset-grid .ute-figure { display: flex; flex-direction: column; }
.mz-asset-grid .ute-figure-stage { aspect-ratio: 16 / 10; display: flex; align-items: center; justify-content: center; overflow: hidden; padding: 12px !important; }
.mz-asset-grid .ute-figure-stage > a { display: flex; width: 100%; height: 100%; align-items: center; justify-content: center; }
.mz-asset-grid .ute-figure-img { width: 100%; height: 100%; max-height: 100%; object-fit: contain; }
.mz-asset-grid .ute-figure-cap { flex: 1; }
.mz-inline-logo { width: 100%; height: 100%; max-height: 120px; }
.ute-brand-word { font-family: "IBM Plex Sans", var(--sans); }

/* ---------- Course images: fit comfortably on the page ---------- */
.mz-chapter .prose > .ute-figure, .mz-chapter .prose > figure { max-width: 760px; margin-left: auto; margin-right: auto; }
.mz-chapter .mz-learn-plate .ute-figure-stage, .mz-chapter .mz-learn-photo .ute-figure-stage { padding: 12px; display: flex; justify-content: center; background: #FFFFFF; }
.mz-chapter .mz-learn-plate img, .mz-chapter .ute-figure-img { max-height: 380px; width: auto; max-width: 100%; object-fit: contain; }
.mz-chapter .mz-learn-photo img { max-height: 380px; width: auto; max-width: 100%; margin: 0 auto; }
.mz-chapter .mz-learn-photo .ute-figure-stage { background: #FFFFFF; }
.mz-chapter .mz-learn-model .mz3d-part { height: 320px; }
.mz-chapter .ute-figure[data-fig] .ute-figure-stage svg { max-height: 340px; }
.mz-chapter .mz-wiring-card img { max-height: 340px; }
.mz-learn-plate { cursor: zoom-in; }

/* ---------- No beige: plain white surfaces ---------- */
.ute-hero, .ute-footer, .mz-cv-banner, .ute-figure-cap, .ute-q-explain, .ute-findings .cell, .ute-dash .cell, .ute-score > div { background: #FFFFFF; }
.ute-figure-cap { border-top: 1px solid #EAEAEA; }
.ute-opt { background: #FFFFFF; }
.ute-toc a:hover, .mz-lib-list button:hover { background: #F5F5F5; }

/* ---------- Learn on phones: contents on top, page below ---------- */
@media (max-width: 960px) {
  .ute-doc { display: flex; flex-direction: column; }
  .ute-toc { position: static; max-height: 46vh; overflow: auto; padding: 14px 16px; border-bottom: 1px solid #DADADA; }
  .ute-toc > ol { display: block; }
  .ute-toc > ol > li > a { border: 0; border-left: 2px solid transparent; padding: 6px 6px; }
  .ute-toc > ol > li > a.is-on { border-left-color: var(--warm); }
  .ute-toc-sub { display: block !important; margin: 0 0 6px 18px !important; }
  .ute-toc-sub a { border: 0 !important; padding: 5px 8px !important; }
  .ute-toc-sub a.is-on { color: var(--warm); font-weight: 600; }
  .ute-toc-foot { display: none; }
  .mz-chapter .mz-learn-plate img, .mz-chapter .ute-figure-img, .mz-chapter .mz-learn-photo img { max-height: 260px; }
}
.ute-stats { background: #E4E4E4; border-color: #E4E4E4; }
.ute-stats .stat:last-child:nth-child(odd) { grid-column: 1 / -1; }
/* Phones: compact, non-sticky header */
@media (max-width: 720px) {
  .ute-top { position: static; padding: 8px 12px; gap: 8px; row-gap: 6px; }
  .ute-brand-word { font-size: 17px; }
  .ute-brand-mark { width: 24px; height: 24px; }
  .ute-top .ute-mode-switch button { padding: 6px 8px; font-size: 11px; }
  .ute-top .ute-iconbtn { width: 30px; height: 30px; }
  .ute-nav { order: 10; width: 100%; display: flex; flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; margin: 0 -12px; padding: 0 12px; height: auto; }
  .ute-nav::-webkit-scrollbar { display: none; }
  .ute-nav a { padding: 6px 9px; font-size: 12px; white-space: nowrap; flex: none; }
  .ute-nav .ute-nav-kids { margin-left: 6px; padding-left: 9px; }
}

/* ==========================================================================
   Site shell v2: white, square, calm. Three-column menu and full footer.
   ========================================================================== */
:root { --ink: #111111; --ink-soft: #2B2B2B; --mute: #5E5E5E; --line: #D9D9D9; --line-soft: #EDEDED; --paper: #FFFFFF; --paper-2: #F6F6F6; --surface: #FFFFFF; }
html, body { background: #FFFFFF; }
body { color: var(--ink-soft); font-size: 15px; line-height: 1.55; -webkit-font-smoothing: antialiased; }
h1, h2, h3 { color: var(--ink); letter-spacing: -0.015em; }
.ute-top { position: sticky; top: 0; z-index: 60; background: #FFFFFF; border-bottom: 1px solid var(--line); box-shadow: none; padding: 0 24px; min-height: 60px; gap: 20px; }
.ute-top .ute-nav { display: none; }
.ute-brand-sub { border-left-color: var(--line); }

.mz-nav { display: flex; align-items: center; flex: 1; min-width: 0; }
.mz-menu { display: flex; align-items: stretch; gap: 4px; flex: 1; }
.mz-menu-btn { display: none; }
.mz-menu-group { position: relative; }
.mz-menu-top { height: 60px; padding: 0 14px; background: none; border: 0; border-bottom: 2px solid transparent; cursor: pointer; font: 600 15px/1 var(--sans); color: var(--ink); display: inline-flex; align-items: center; gap: 8px; }
.mz-menu-top i { width: 7px; height: 7px; border-right: 1.6px solid currentColor; border-bottom: 1.6px solid currentColor; transform: rotate(45deg) translateY(-2px); transition: transform .15s ease; }
.mz-menu-group.is-current .mz-menu-top { border-bottom-color: var(--warm); }
.mz-menu-group.is-open .mz-menu-top i { transform: rotate(-135deg) translateY(-1px); }
.mz-menu-top:hover { color: var(--warm); }
.mz-menu-panel { position: absolute; top: 100%; left: 0; min-width: 320px; background: #FFFFFF; border: 1px solid var(--line); border-top: 2px solid var(--ink); padding: 14px 8px 10px; display: none; z-index: 70; }
.mz-menu-group.is-open .mz-menu-panel { display: block; }
.mz-menu-blurb { margin: 0 10px 8px; font: 600 11.5px/1.3 var(--mono); letter-spacing: .07em; text-transform: uppercase; color: var(--mute); }
.mz-menu-panel ul { list-style: none; margin: 0; padding: 0; }
.mz-menu-panel a { display: block; padding: 8px 10px; text-decoration: none; color: var(--ink); }
.mz-menu-panel a b { display: block; font: 600 15px/1.25 var(--sans); }
.mz-menu-panel a span { display: block; font: 400 13px/1.35 var(--sans); color: var(--mute); margin-top: 2px; }
.mz-menu-panel a:hover, .mz-menu-panel a:focus-visible { background: #F4F4F4; outline: none; }
.mz-menu-panel a[aria-current="page"] b { color: var(--warm); }
.mz-menu-cta { margin-left: auto; align-self: center; padding: 9px 14px; border: 1.5px solid var(--ink); text-decoration: none; color: var(--ink); font: 600 14px/1 var(--sans); white-space: nowrap; }
.mz-menu-cta:hover { background: var(--ink); color: #FFFFFF; }

/* Footer */
.mz-footer { margin-top: auto; background: #FFFFFF; border-top: 1px solid var(--line); padding: 40px 24px 22px; }
.mz-foot { display: grid; grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr)); gap: 32px; max-width: 1400px; margin: 0 auto; }
.mz-foot h4 { font: 600 12px/1.2 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--mute); margin: 4px 0 12px; }
.mz-foot ul { list-style: none; margin: 0; padding: 0; }
.mz-foot li { margin: 0 0 7px; }
.mz-foot a { color: var(--ink); text-decoration: none; font-size: 14.5px; }
.mz-foot a:hover { color: var(--warm); text-decoration: underline; }
.mz-foot-about p { font-size: 14px; color: var(--mute); max-width: 440px; }
.mz-foot-brand { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.mz-foot-brand span { font: 600 20px/1 "IBM Plex Sans", var(--sans); color: var(--brand); }
.mz-foot-bottom { max-width: 1400px; margin: 28px auto 0; padding-top: 16px; border-top: 1px solid var(--line-soft); display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 13px; color: var(--mute); }
.mz-foot-bottom a { color: var(--mute); }
.ute-footer { display: none; }

/* Calmer components: square corners, no shadows, more air */
.ute-card, .ute-figure, .ute-q, .ute-result, .mz-gal-card, .ute-modcard, .mz-chaplist a, .mz-pager a { border-color: var(--line); }
.ute-btn, .ute-linkbtn { border-width: 1.5px; font: 600 13px/1 var(--sans); letter-spacing: .01em; text-transform: none; padding: 10px 14px; }
.ute-btn.is-primary { background: var(--ink); color: #FFFFFF; }
.ute-linkbtn.is-warm { border-color: var(--warm); color: var(--warm); }
.ute-chip { font: 600 13px/1.2 var(--sans); letter-spacing: .01em; text-transform: none; padding: 7px 12px; border-color: var(--line); }
.ute-seg button { font: 600 13px/1 var(--sans); letter-spacing: .01em; text-transform: none; }
.ute-hero { background: #FFFFFF; padding: 48px 40px 40px; }
.ute-hero h1 { font-size: clamp(30px, 3.4vw, 46px); line-height: 1.08; letter-spacing: -0.025em; font-weight: 600; max-width: 900px; }
.ute-hero p { font-size: 17px; color: var(--ink-soft); }
.ute-section h2, .ute-chapter h2 { font-weight: 600; }

@media (max-width: 960px) {
  .ute-top { padding: 0 14px; min-height: 56px; }
  .mz-nav { flex: 0 0 auto; margin-left: auto; order: 5; }
  .mz-menu-btn { display: inline-flex; align-items: center; gap: 4px; flex-direction: column; justify-content: center; width: auto; height: 44px; padding: 0 10px; background: none; border: 1.5px solid var(--ink); cursor: pointer; }
  .mz-menu-btn span { display: block; width: 18px; height: 2px; background: var(--ink); }
  .mz-menu-btn b { font: 600 10px/1 var(--sans); margin-top: 2px; }
  .mz-menu { display: none; position: fixed; inset: 56px 0 0 0; background: #FFFFFF; flex-direction: column; overflow: auto; padding: 8px 16px 32px; z-index: 80; }
  .mz-menu.is-open { display: flex; }
  .mz-menu-top { height: auto; padding: 14px 0 6px; font-size: 13px; color: var(--mute); text-transform: uppercase; letter-spacing: .08em; pointer-events: none; border: 0; }
  .mz-menu-top i { display: none; }
  .mz-menu-panel { position: static; display: block; border: 0; padding: 0; min-width: 0; }
  .mz-menu-blurb { display: none; }
  .mz-menu-panel a { padding: 10px 0; border-bottom: 1px solid var(--line-soft); }
  .mz-menu-cta { margin: 18px 0 0; align-self: stretch; text-align: center; padding: 14px; }
  html.mz-menu-locked { overflow: hidden; }
  .mz-foot { grid-template-columns: 1fr 1fr; }
  .mz-foot-about { grid-column: 1 / -1; }
}
@media (max-width: 540px) { .mz-foot { grid-template-columns: 1fr; } .ute-hero { padding: 28px 16px; } }
.mz-complete { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); }
.mz-complete a { font-size: 14px; color: var(--mute); }
.ute-toc a.is-done::after { content: "✓"; margin-left: 6px; color: #1E7A4A; font-weight: 700; }
.mz-done-tag, .mz-seen-tag { display: inline-block; margin-left: 8px; font: 600 12px/1 var(--mono); letter-spacing: .05em; text-transform: uppercase; padding: 4px 6px; }
.mz-done-tag { background: #E6F4EC; color: #1E7A4A; }
.mz-seen-tag { background: #F2F2F2; color: var(--mute); }
.mz-resume { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; background: #FFFFFF; border: 1px solid var(--line); border-left: 4px solid var(--warm); margin: 24px 40px 0; padding: 20px 24px; }
.mz-resume h2 { font-size: 22px; margin: 4px 0; }
.mz-resume p { margin: 0; }
@media (max-width: 720px) { .mz-resume { margin: 16px; } }
.mz-levels { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.mz-level { text-align: left; padding: 14px 16px; background: #FFFFFF; border: 1.5px solid var(--line); cursor: pointer; display: flex; flex-direction: column; gap: 6px; }
.mz-level b { font: 600 17px/1.2 var(--sans); color: var(--ink); }
.mz-level span { font-size: 13.5px; line-height: 1.45; color: var(--mute); }
.mz-level:hover { border-color: var(--ink); }
.mz-level.is-on { border-color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); }
.mz-level.is-on b::before { content: "● "; color: var(--warm); }
.mz-timer { position: relative; height: 26px; border: 1px solid var(--line); margin: -6px 0 14px; display: flex; align-items: center; justify-content: flex-end; padding: 0 8px; }
.mz-timer i { position: absolute; left: 0; top: 0; bottom: 0; width: 100%; background: #EEF3FB; transition: width 1s linear; }
.mz-timer i.is-low { background: #FBE7DE; }
.mz-timer span { position: relative; font: 600 13px/1 var(--mono); color: var(--ink); }
.mz-best td, .mz-best th { text-align: left; }
.mz-best td b { margin-right: 6px; }
.mz-best td small, .mz-best td span { color: var(--mute); }
@media (max-width: 720px) { .mz-levels { grid-template-columns: 1fr; } }

/* ---------- Typeface: Lato everywhere (clear, Calibri-like, as in Brightspace) ---------- */
:root { --sans: "Lato", "Segoe UI", Calibri, Arial, sans-serif; --mono: "Lato", "Segoe UI", Calibri, Arial, sans-serif; }
body { font-family: var(--sans); font-size: 16px; line-height: 1.6; }
.ute-label, .mz-cv-tag, .mz-menu-blurb, .mz-foot h4, .mz-crumbs { font-family: var(--sans); font-weight: 700; letter-spacing: .06em; }
.ute-brand-mark { display: none; }
.ute-brand-word { font-family: "Lato", var(--sans); font-weight: 900; font-size: 21px; color: var(--ink); letter-spacing: -0.01em; }
.ute-brand-sub { font-family: var(--sans); font-weight: 700; }
.mz-foot-brand span { font-family: "Lato", var(--sans); font-weight: 900; color: var(--ink); }
.mz-menu-main { height: 60px; display: inline-flex; align-items: center; padding: 0 14px; text-decoration: none; color: var(--ink); font: 700 15px/1 var(--sans); border-bottom: 2px solid transparent; }
.mz-menu-main:hover { color: var(--warm); }
.mz-menu-main[aria-current="page"] { border-bottom-color: var(--warm); }
.mz-menu-top { font-weight: 700; }
h1, h2, h3, .ute-hero h1 { font-family: var(--sans); font-weight: 700; letter-spacing: -0.01em; }
.ute-stats .stat-v, .ute-status-num, .ute-dash .cell .v, .ute-findings .cell .v, .big { font-family: var(--sans); font-weight: 700; }
@media (max-width: 960px) {
  .mz-menu-main { height: auto; padding: 14px 0; border-bottom: 1px solid var(--line-soft); font-size: 17px; }
  .mz-menu-main[aria-current="page"] { color: var(--warm); border-bottom-color: var(--line-soft); }
}

/* ==========================================================================
   Overview: one screen. Bike on the left, component panel on the right.
   ========================================================================== */
.mz-split { display: grid; grid-template-columns: minmax(0, 1fr); height: calc(100vh - 61px); min-height: 560px; border-bottom: 1px solid var(--line); }
.mz-split[data-open="1"] { grid-template-columns: minmax(0, 1fr) 10px var(--mz-right, 40%); }
.mz-split-left { display: flex; flex-direction: column; min-height: 0; min-width: 0; padding: 14px 20px 12px; border-bottom: 0; }
.mz-split-left .ute-section-head { margin-bottom: 8px; }
.mz-split-left .ute-section-head h2 { font-size: 22px; }
.mz-split-left .ute-chips { margin-bottom: 8px; }
.mz-split-left .ute-moto-wrap { flex: 1; min-height: 0; display: flex; }
.mz-split-left .ute-moto-stage { flex: 1; min-height: 0; position: relative; }
.mz-split-left .mz3d-bike { height: 100%; }
.mz-split-left .mz-part-index { max-height: 76px; overflow: auto; margin-top: 8px; }
.mz-split-handle { display: none; cursor: col-resize; background: #F2F2F2; border-left: 1px solid var(--line); border-right: 1px solid var(--line); position: relative; touch-action: none; }
.mz-split-handle::after { content: ""; position: absolute; left: 3px; right: 3px; top: 50%; height: 44px; margin-top: -22px; border-left: 2px dotted #9A9A9A; border-right: 2px dotted #9A9A9A; }
.mz-split-handle:hover, .mz-split-handle:focus-visible, .mz-split.is-dragging .mz-split-handle { background: #FBE7DE; outline: none; }
.mz-split[data-open="1"] .mz-split-handle { display: block; }
.mz-split.is-dragging { user-select: none; cursor: col-resize; }
.mz-panel { display: none; min-width: 0; min-height: 0; flex-direction: column; background: #FFFFFF; padding: 14px 16px 12px; overflow: hidden; }
.mz-split[data-open="1"] .mz-panel { display: flex; }
.mz-panel-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; margin-bottom: 8px; }
.mz-panel-head h2 { font-size: 22px; margin: 2px 0 0; }
.mz-panel-actions { display: flex; gap: 6px; align-items: center; }
.mz-anim-btn { padding: 8px 12px; border: 1.5px solid var(--warm); background: #FFFFFF; color: var(--warm); font: 700 13px/1 var(--sans); cursor: pointer; white-space: nowrap; }
.mz-anim-btn[aria-expanded="true"] { background: var(--warm); color: #FFFFFF; }
.mz-panel .ute-cview-close { padding: 7px 10px; }
.mz-anim { flex: 0 1 auto; max-height: 58%; overflow: auto; border: 1px solid var(--line); margin-bottom: 10px; background: #FFFFFF; }
.mz-anim[hidden] { display: none; }
.mz-anim .ute-cview-stage { min-height: 0; padding: 70px 10px 92px; border: 0; }
.mz-anim .ute-cview-stage svg.ute-cv-svg { max-height: 300px; }
.mz-anim .ute-status { top: 8px; left: 8px; right: 8px; padding: 8px 10px; }
.mz-anim .ute-hold-wrap { bottom: 10px; }
.mz-anim .ute-hold { width: 160px; height: 48px; font-size: 14px; }
.mz-anim .ute-cview-side { grid-template-columns: 1fr; gap: 10px; margin: 10px; }
.mz-anim .ute-under { padding: 0 10px 10px; }
.mz-panel-model { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.mz-panel-model .mz3d-part { flex: 1; min-height: 200px; height: auto; border: 1px solid var(--line); }
.mz-panel-model .mz-subparts { max-height: 92px; overflow: auto; margin-top: 6px; }
.mz-panel-model .mz3d-cap { margin: 6px 0 4px; }
.mz-panel-lead { margin: 8px 0 0; font-size: 15px; }
.ute-cview { padding: 0 24px; border-bottom: 0; }
.ute-cview:empty { display: none; }
.mz-cv-below { padding: 20px 0 32px; }
.mz-cv-banner { grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.3fr) minmax(0, 0.9fr); background: #FFFFFF; border: 1px solid var(--line); }
.mz-wide-stage { margin-top: 20px; min-height: 0; padding: 70px 16px 20px; }
.mz-cv-graphs { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; margin-bottom: 16px; }
@media (max-width: 960px) {
  .mz-split, .mz-split[data-open="1"] { grid-template-columns: 1fr; height: auto; min-height: 0; }
  .mz-split-left .ute-moto-wrap { flex: none; }
  .mz-split-left .mz3d-bike { height: clamp(300px, 70vw, 460px); }
  .mz-split-left .mz-part-index { max-height: none; }
  .mz-split-handle { display: none !important; }
  .mz-panel { border-top: 1px solid var(--line); overflow: visible; }
  .mz-panel-model .mz3d-part { height: 340px; flex: none; }
  .mz-anim { max-height: none; }
  .mz-cv-banner { grid-template-columns: 1fr; }
  .ute-cview { padding: 0 14px; }
}
.mz-graph svg { width: 100%; height: auto; display: block; }
.mz-graph h4 { text-transform: none; letter-spacing: 0; font-size: 15px; color: var(--ink); }
.mz-graph-note { font-size: 13px; color: var(--mute); margin: 6px 0 0; }
.mz-cv-graphs { grid-template-columns: repeat(auto-fill, minmax(300px, 440px)); }
.mz-graph svg { max-width: 420px; }
/* Embedded animation (used inside course chapters) */
html.mz-embed body { background: #FFFFFF; }
html.mz-embed .ute-top, html.mz-embed .mz-footer, html.mz-embed .mz-split-left, html.mz-embed .mz-split-handle, html.mz-embed .mz-panel-model, html.mz-embed .mz-cv-banner, html.mz-embed [data-cv-close], html.mz-embed [data-anim], html.mz-embed .ute-modal { display: none !important; }
html.mz-embed .mz-split { display: block; height: auto; min-height: 0; border: 0; }
html.mz-embed .mz-panel { display: flex; padding: 0; overflow: visible; }
html.mz-embed .mz-panel-head { display: none; }
html.mz-embed .mz-anim { max-height: none; border: 0; margin: 0; }
html.mz-embed .mz-anim .ute-cview-side { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
html.mz-embed .ute-cview { padding: 0; }
html.mz-embed .mz-cv-below { padding: 10px 0 0; }
.mz-learn-anim iframe { display: block; width: 100%; min-height: 560px; border: 0; }
/* Home: welcome section below the 3D overview */
.mz-home { padding: 32px 24px 48px; }
.mz-home-hero { position: relative; min-height: 420px; overflow: hidden; background: #111; display: flex; align-items: flex-end; }
.mz-home-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .62; }
.mz-home-hero-text { position: relative; padding: 40px; max-width: 760px; color: #FFFFFF; }
.mz-home-hero-text .ute-label { color: #F2C9B6; }
.mz-home-hero-text h2 { color: #FFFFFF; font-size: clamp(28px, 3.2vw, 42px); line-height: 1.1; margin: 8px 0 12px; }
.mz-home-hero-text p { color: #EDEDED; font-size: 17px; max-width: 620px; }
.mz-btn-light { background: #FFFFFF; color: var(--ink); border-color: #FFFFFF; }
.mz-btn-light:hover { background: #F2F2F2; }
.mz-home-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 16px; }
.mz-home-card { display: flex; flex-direction: column; border: 1px solid var(--line); text-decoration: none; color: var(--ink-soft); background: #FFFFFF; }
.mz-home-card img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; display: block; }
.mz-home-card div { padding: 16px 18px 18px; }
.mz-home-card h3 { font-size: 19px; margin: 0 0 6px; }
.mz-home-card p { font-size: 14.5px; margin: 0 0 10px; }
.mz-home-card span { font-weight: 700; color: var(--warm); font-size: 14px; }
.mz-home-card:hover { border-color: var(--ink); }
.mz-video-fig { margin: 0; }
.mz-video-fig video { display: block; width: 100%; max-height: 520px; object-fit: cover; background: #111; }
.mz-video-fig figcaption { font-size: 13px; color: var(--mute); padding-top: 8px; }
html.mz-embed .mz-home { display: none; }
@media (max-width: 960px) { .mz-home-cards { grid-template-columns: 1fr; } .mz-home-hero { min-height: 360px; } .mz-home-hero-text { padding: 24px 18px; } .mz-home { padding: 24px 14px 36px; } }
a.ute-btn { text-decoration: none; display: inline-flex; align-items: center; }
.mz-chaplist img.is-photo { object-fit: cover; }
.mz-chaplist img, .mz-chaplist a > span { width: 200px; height: 130px; }
@media (max-width: 720px) { .mz-chaplist img { width: 100%; height: 180px; } }
.mz-chaplist a { grid-template-columns: 200px minmax(0, 1fr); } @media (max-width: 720px) { .mz-chaplist a { grid-template-columns: 1fr; } }
.mz-chaplist .mz-az { display: grid; place-items: center; font: 900 34px/1 var(--sans); color: var(--ink); background: #F5F5F5; letter-spacing: -0.02em; }
.mz-gal-item { display: flex; flex-direction: column; }
.mz-gal-item .mz-gal-card { flex: 1; }
.mz-gal-dl { display: block; padding: 8px 10px; border: 1px solid var(--line); border-top: 0; font: 700 13px/1.2 var(--sans); color: var(--ink); text-decoration: none; background: #FAFAFA; }
.mz-gal-dl:hover { background: var(--ink); color: #FFF; }
/* Phones: Course / Tools / More are tap-to-open dropdowns inside the menu */
@media (max-width: 960px) {
  .mz-menu-group { border-bottom: 1px solid var(--line-soft); }
  .mz-menu-top { pointer-events: auto; width: 100%; justify-content: space-between; padding: 16px 0; font: 700 17px/1 var(--sans); color: var(--ink); text-transform: none; letter-spacing: 0; cursor: pointer; }
  .mz-menu-top i { display: inline-block; width: 9px; height: 9px; }
  .mz-menu-group .mz-menu-panel { display: none; padding: 0 0 10px 12px; }
  .mz-menu-group.is-open .mz-menu-panel { display: block; }
  .mz-menu-group.is-open .mz-menu-top { color: var(--warm); }
  .mz-menu-panel a { padding: 9px 0; }
  .mz-menu-panel a:last-child { border-bottom: 0; }
}

/* ---------- Cockpit: keyboard guide only where there is a keyboard ---------- */
@media (max-width: 900px), (hover: none) and (pointer: coarse) { .mz-howto { display: none !important; } }

/* ---------- Footer: email updates ---------- */
.mz-footer .mz-sub { box-sizing: border-box; display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, 520px); gap: 8px 48px; align-items: center; max-width: 1400px; margin: 0 auto 40px; padding: 28px 32px; background: #F4F4F4; border: 0; }
.mz-sub h4 { margin: 0 0 6px; font: 900 22px/1.2 var(--sans); color: var(--ink); text-transform: none; letter-spacing: 0; }
.mz-sub p { margin: 0; font-size: 15px; line-height: 1.5; color: var(--ink-soft); max-width: 520px; }
.mz-sub > div { min-width: 0; }
.mz-sub-row { display: flex; width: 100%; box-sizing: border-box; }
.mz-sub-l { position: absolute; left: -9999px; }
.mz-sub input { flex: 1; min-width: 0; height: 50px; box-sizing: border-box; font: 400 16px/1 var(--sans); padding: 0 16px; border: 1.5px solid var(--ink); border-right: 0; background: #FFF; color: var(--ink); border-radius: 0; margin: 0; }
.mz-sub button { height: 50px; box-sizing: border-box; font: 700 15px/1 var(--sans); padding: 0 22px; background: var(--ink); color: #FFF; border: 1.5px solid var(--ink); cursor: pointer; border-radius: 0; margin: 0; }
.mz-sub button:hover { background: var(--warm); border-color: var(--warm); }
.mz-sub .mz-sub-msg { grid-column: 2; min-height: 18px; font-size: 13.5px; color: var(--warm); }
.mz-foot { grid-template-columns: minmax(0, 1.5fr) repeat(4, minmax(0, 1fr)); }
@media (max-width: 1000px) { .mz-foot { grid-template-columns: 1fr 1fr; } .mz-foot-about { grid-column: 1 / -1; } }
@media (max-width: 760px) { .mz-footer .mz-sub { grid-template-columns: 1fr; padding: 22px 18px; margin-bottom: 28px; } .mz-sub .mz-sub-msg { grid-column: 1; } }
@media (max-width: 540px) { .mz-foot { grid-template-columns: 1fr 1fr; } }

/* ---------- Learn: gearing chart ---------- */
.mz-gear { padding: 14px 16px; }
.mz-gear-ctl { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 24px; margin-bottom: 8px; }
.mz-gear-ctl label { display: grid; grid-template-columns: 120px minmax(0, 1fr) 30px; gap: 10px; align-items: center; font: 700 14px/1.2 var(--sans); }
.mz-gear-ctl input { accent-color: var(--warm); width: 100%; }
.mz-gear svg { width: 100%; height: auto; display: block; }
.mz-gear-out { font-size: 15px; margin: 6px 0 4px; }
@media (max-width: 700px) { .mz-gear-ctl { grid-template-columns: 1fr; } }

/* ---------- Learn: Under the Engine renders ---------- */
.mz-eng-shot a { display: block; position: relative; background: #F3F4F6; }
.mz-eng-shot img { display: block; width: 100%; height: auto; }
.mz-eng-go { position: absolute; right: 12px; bottom: 12px; font: 700 14px/1 var(--sans); padding: 11px 14px; background: var(--ink); color: #FFF; }
.mz-eng-shot a:hover .mz-eng-go { background: var(--warm); }

/* ---------- Overview: the working animation and its graphs side by side ---------- */
a.mz-anim-btn { text-decoration: none; display: inline-flex; align-items: center; }
.mz-cv-work { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 20px; align-items: start; margin-bottom: 20px; }
.mz-cv-work.is-solo { grid-template-columns: minmax(0, 1fr); }
.mz-cv-work .mz-anim { max-height: none; overflow: visible; margin: 0; padding: 12px; }
.mz-cv-work .mz-anim .ute-cview-stage svg.ute-cv-svg { max-height: 360px; }
.mz-cv-work .mz-anim .ute-cview-side { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); margin: 10px 0 0; }
.mz-cv-work .mz-cv-graphs { margin: 0; border: 1px solid var(--line); padding: 12px; background: #FFFFFF; }
.mz-cv-work .mz-cv-graphs > :not(.mz-cv-tag) { width: 100%; }
.mz-cv-work .mz-cv-tag { display: block; margin-bottom: 8px; }
@media (max-width: 1100px) { .mz-cv-work { grid-template-columns: minmax(0, 1fr); } }

/* Overview: second marker for parts that open in Under the Engine */
.mz-part.is-eng::after { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: #2A4FE0; margin-left: 6px; vertical-align: 1px; }
.ute-legend i.is-eng { background: #2A4FE0 !important; border-color: #2A4FE0 !important; margin-left: 10px; }

/* Overview on phones: the panel stacks under the bike, with a clear close button that stays in reach */
@media (max-width: 960px) {
  .mz-pagebar ~ .mz-split, .mz-split, .mz-split[data-open="1"] { height: auto !important; min-height: 0 !important; }
  .mz-split[data-open="1"] .mz-panel { border-top: 2px solid var(--ink); }
  .mz-panel-head { position: sticky; top: 56px; z-index: 30; background: #FFFFFF; padding-top: 10px; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
  .mz-panel-head .ute-cview-close { width: 44px; height: 44px; font-size: 22px; font-weight: 700; border: 2px solid var(--ink); background: #FFFFFF; color: var(--ink); display: grid; place-items: center; }
}
.mz-credit { display: block; font-size: 12px; color: var(--mute); margin-top: 4px; }

.mz-photo-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 10px; margin: 18px 0; }
.mz-photo-row .ute-figure { margin: 0; }
.mz-chapter .mz-photo-row .mz-learn-photo img { max-height: 240px; }

/* Learn: exercise block (Circuit Builder tasks) */
.mz-exercise { border: 1px solid var(--line); border-left: 3px solid var(--elec); background: var(--surface); padding: 14px 16px 16px; margin: 16px 0; max-width: 760px; }
.mz-exercise .mz-ex-head .ute-label { color: var(--elec); }
.mz-exercise h4 { margin: 4px 0 10px; font-size: 17px; color: var(--ink); }
.mz-ex-list { margin: 0 0 12px; display: grid; gap: 8px; }
.mz-ex-list > div { display: grid; grid-template-columns: 84px minmax(0, 1fr); gap: 10px; }
.mz-ex-list dt { font: 600 10.5px/1.6 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute); }
.mz-ex-list dd { margin: 0; font-size: 14.5px; }
@media (max-width: 560px) { .mz-ex-list > div { grid-template-columns: minmax(0, 1fr); gap: 2px; } }

/* ---------- Community: share, tool notes, comments (assets/community.js) ---------- */
.mzc { border-top: 1px solid var(--line); background: #FAFAF7; }
.mzc-in { max-width: 1160px; margin: 0 auto; padding: 44px 40px 52px; display: grid; gap: 34px; }
.mzc h2 { font-size: 20px; margin: 0 0 10px; }
.mzc-tool ul { margin: 8px 0; padding-left: 20px; line-height: 1.55; max-width: 760px; }
.mzc-tool p { max-width: 760px; line-height: 1.55; }
.mzc-btns { display: flex; flex-wrap: wrap; gap: 8px; }
.mzc-btn { display: inline-block; padding: 9px 14px; border: 1px solid var(--line); background: #FFF; color: var(--ink); font: 600 14px/1.1 var(--sans); text-decoration: none; cursor: pointer; }
.mzc-btn:hover { border-color: var(--ink); }
.mzc-btn.is-main { background: var(--ink); border-color: var(--ink); color: #FFF; }
.mzc-btn.is-main:hover { background: var(--warm); border-color: var(--warm); }
.mzc-msg { min-height: 1.3em; margin: 6px 0 0; font-size: 14px; color: var(--mute); }
.mzc-small { font-size: 14px; color: var(--mute); }
.mzc-soon { padding: 14px 16px; border: 1px dashed var(--line); color: var(--ink-soft); max-width: 760px; }
.mzc-form { max-width: 760px; }
.mzc-l { display: block; font: 600 14px/1.3 var(--sans); margin: 0 0 6px; }
.mzc-form textarea { width: 100%; padding: 12px 14px; border: 1px solid var(--ink); font: 16px/1.5 var(--sans); resize: vertical; box-sizing: border-box; }
.mzc-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 10px; }
.mzc-file { font-size: 14px; color: var(--ink-soft); }
.mzc-list { list-style: none; padding: 0; margin: 18px 0 0; max-width: 760px; }
.mzc-c { border-top: 1px solid var(--line-soft); padding: 14px 0; }
.mzc-c.is-hidden { opacity: .5; }
.mzc-c p { margin: 6px 0; line-height: 1.55; }
.mzc-c img { max-width: 320px; width: 100%; height: auto; border: 1px solid var(--line); margin-top: 6px; display: block; }
.mzc-meta { font-size: 14px; color: var(--mute); display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.mzc-meta b { color: var(--ink); }
.mzc-del { margin-left: auto; background: none; border: 0; color: var(--mute); text-decoration: underline; cursor: pointer; font-size: 13px; }
@media (max-width: 720px) { .mzc-in { padding: 32px 16px 40px; gap: 26px; } }

/* Sign-up band (data-mz-signup) on the home page and key pages */
.mz-signup { display: block; padding: 0 40px; margin: 48px 0; }
.mz-signup .mz-sub { box-sizing: border-box; display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, 520px); gap: 8px 48px; align-items: center; max-width: 1160px; margin: 0 auto; padding: 32px 36px; background: #FFF4EC; border: 1.5px solid var(--warm); cursor: default; font-size: inherit; color: inherit; }
.mz-signup .mz-sub:hover { background: #FFF4EC; color: inherit; }
@media (max-width: 800px) { .mz-signup { padding: 0 16px; margin: 36px 0; } .mz-signup .mz-sub { grid-template-columns: 1fr; padding: 22px 18px; } .mz-signup .mz-sub .mz-sub-msg { grid-column: 1; } }
/* Download sign-up dialog (assets/gate.js) */
.mz-gate { position: fixed; inset: 0; background: rgba(0,0,0,.55); display: none; align-items: center; justify-content: center; z-index: 9999; padding: 16px; }
.mz-gate.is-open { display: flex; }
.mz-gate-box { background: #FFF; max-width: 480px; width: 100%; padding: 28px 28px 22px; border-top: 4px solid var(--warm); }
.mz-gate-box h2 { margin: 0 0 10px; font-size: 22px; }
.mz-gate-box p { margin: 0 0 12px; line-height: 1.55; }
.mz-gate-what { font-size: 14px; color: var(--mute); word-break: break-all; }
.mz-gate-btns { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }
.mz-gate-go { padding: 12px 16px; background: var(--ink); color: #FFF; text-decoration: none; font: 700 15px/1 var(--sans); }
.mz-gate-go:hover { background: var(--warm); }
.mz-gate-no { padding: 12px 16px; background: #FFF; border: 1px solid var(--line); font: 600 15px/1 var(--sans); cursor: pointer; }

/* Motopedia logo (assets/brand/) */
.ute-brand-logo { display: block; height: 30px; width: auto; flex: none; }
.mz-foot-brand img { display: block; width: 220px; max-width: 100%; height: auto; }
@media (max-width: 720px) { .ute-brand-logo { height: 24px; } }