/* GD&T Atölyesi — drafting-paper look, light/dark themes */

:root {
  --bg: #f3f0e8;
  --grid: rgba(28, 93, 153, .06);
  --surface: #fffdf8;
  --surface-2: #f7f3ea;
  --ink: #1b2836;
  --muted: #5f6c79;
  --line: #ddd5c4;
  --line-strong: #c4b9a3;
  --blue: #1c5d99;
  --blue-soft: rgba(28, 93, 153, .1);
  --accent: #d24a12;
  --accent-soft: rgba(210, 74, 18, .1);
  --ok: #2d8a46;
  --ok-soft: rgba(45, 138, 70, .13);
  --bad: #c43030;
  --bad-soft: rgba(196, 48, 48, .12);
  --warn: #b7791f;
  --warn-soft: rgba(183, 121, 31, .14);
  --shadow: 0 1px 2px rgba(27, 40, 54, .06), 0 6px 20px rgba(27, 40, 54, .06);
  --radius: 14px;
  --sans: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e151d; --grid: rgba(90, 169, 255, .05); --surface: #151f2a; --surface-2: #1a2633;
    --ink: #e4ebf2; --muted: #8d9cac; --line: #26364a; --line-strong: #34485f;
    --blue: #6cb2ff; --blue-soft: rgba(108, 178, 255, .13); --accent: #ff8a4c; --accent-soft: rgba(255, 138, 76, .13);
    --ok: #4cc26a; --ok-soft: rgba(76, 194, 106, .14); --bad: #ff6b6b; --bad-soft: rgba(255, 107, 107, .14);
    --warn: #f0b44c; --warn-soft: rgba(240, 180, 76, .14);
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0e151d; --grid: rgba(90, 169, 255, .05); --surface: #151f2a; --surface-2: #1a2633;
  --ink: #e4ebf2; --muted: #8d9cac; --line: #26364a; --line-strong: #34485f;
  --blue: #6cb2ff; --blue-soft: rgba(108, 178, 255, .13); --accent: #ff8a4c; --accent-soft: rgba(255, 138, 76, .13);
  --ok: #4cc26a; --ok-soft: rgba(76, 194, 106, .14); --bad: #ff6b6b; --bad-soft: rgba(255, 107, 107, .14);
  --warn: #f0b44c; --warn-soft: rgba(240, 180, 76, .14);
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 16px/1.6 var(--sans);
  color: var(--ink);
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 24px 24px;
  min-height: 100vh;
}
a { color: var(--blue); }
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 .5em; letter-spacing: -.01em; }
p { margin: 0 0 .8em; }
.mono { font-family: var(--mono); font-feature-settings: 'zero' 0; }
.muted { color: var(--muted); }
.small { font-size: .86rem; }
.kicker { font: 600 .74rem/1.2 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--accent); margin-bottom: .6em; }
.lbl { display: block; font-size: .8rem; font-weight: 600; color: var(--muted); margin: .6em 0 .35em; }
[hidden] { display: none !important; }
button { font: inherit; color: inherit; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: 16px;
  padding: 10px max(16px, calc((100vw - 1180px) / 2));
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-size: 1.05rem; white-space: nowrap; }
.brand b { color: var(--blue); }
.brand-mark {
  width: 26px; height: 26px; border-radius: 7px; background: var(--blue); position: relative; flex: none;
}
.brand-mark::before, .brand-mark::after { content: ''; position: absolute; background: var(--surface); }
.brand-mark::before { left: 12px; top: 4px; width: 2px; height: 18px; }
.brand-mark::after { top: 12px; left: 4px; height: 2px; width: 18px; }
.xp { display: flex; align-items: center; gap: 10px; margin-left: auto; font-size: .85rem; }
.xp-level { font-weight: 600; white-space: nowrap; }
.xp-track { width: 120px; height: 8px; border-radius: 99px; background: var(--line); overflow: hidden; }
.xp-fill { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--blue), var(--accent)); transition: width .6s ease; }
.xp-value { color: var(--muted); white-space: nowrap; }
.top-actions { display: flex; gap: 6px; }
.icon-btn {
  display: inline-flex; align-items: center; gap: 6px; height: 36px; padding: 0 10px;
  border: 1px solid var(--line); border-radius: 10px; background: var(--surface); cursor: pointer;
}
.icon-btn:hover { border-color: var(--line-strong); }

/* ---------- layout ---------- */
#app { max-width: 1180px; margin: 0 auto; padding: 28px 16px 64px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; }

/* ---------- buttons & controls ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 9px 16px; border-radius: 10px; border: 1px solid var(--blue);
  background: var(--blue); color: #fff; font-weight: 600; text-decoration: none; cursor: pointer;
  transition: transform .12s ease, filter .12s ease;
}
:root[data-theme="dark"] .btn:not(.ghost) { color: #0e151d; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .btn:not(.ghost) { color: #0e151d; } }
.btn:hover:not(:disabled) { filter: brightness(1.08); transform: translateY(-1px); }
.btn:disabled { opacity: .5; cursor: default; }
.btn.ghost { background: transparent; color: var(--blue); }
.btn.big { padding: 12px 20px; font-size: 1.02rem; }

.seg { display: inline-flex; flex-wrap: wrap; gap: 4px; padding: 4px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--line); margin-bottom: 12px; }
.seg button { border: 0; background: transparent; padding: 6px 12px; border-radius: 8px; cursor: pointer; font-size: .9rem; font-family: var(--mono); }
.seg.wrap button, [data-mode] button { font-family: var(--sans); }
.seg button.on { background: var(--surface); box-shadow: var(--shadow); color: var(--blue); font-weight: 600; }

.slider { display: block; margin: 10px 0; }
.slider > span { display: flex; justify-content: space-between; font-size: .88rem; font-weight: 600; margin-bottom: 4px; }
.slider output { color: var(--blue); }
input[type="range"] { width: 100%; accent-color: var(--blue); }

.switch { display: flex; align-items: center; gap: 10px; cursor: pointer; margin: 8px 0; font-size: .92rem; font-weight: 600; }
.switch small { display: block; font-weight: 400; color: var(--muted); font-size: .8rem; }
.switch input { position: absolute; opacity: 0; pointer-events: none; }
.sw { flex: none; width: 40px; height: 22px; border-radius: 99px; background: var(--line-strong); position: relative; transition: background .2s; }
.sw::after { content: ''; position: absolute; left: 3px; top: 3px; width: 16px; height: 16px; border-radius: 50%; background: #fff; transition: transform .2s; }
.switch input:checked + .sw { background: var(--ok); }
.switch input:checked + .sw::after { transform: translateX(18px); }
.switch input:focus-visible + .sw { outline: 2px solid var(--blue); outline-offset: 2px; }

/* ---------- home ---------- */
.hero { display: grid; grid-template-columns: 1.15fr 1fr; gap: 32px; align-items: center; margin: 12px 0 32px; }
.hero h1 { font-size: clamp(2rem, 4.4vw, 3.1rem); margin-bottom: .35em; }
.hero h1 em { font-style: normal; color: var(--accent); }
.lead { font-size: 1.08rem; color: var(--muted); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.fcf { display: inline-flex; border: 2px solid var(--ink); border-radius: 2px; background: var(--surface); }
.fcf-cell {
  display: inline-flex; align-items: center; justify-content: center; gap: 4px;
  min-width: 52px; height: 52px; padding: 0 12px; border: 0; border-right: 2px solid var(--ink);
  background: transparent; cursor: pointer; font-size: 1.25rem; font-weight: 600; transition: background .15s;
}
.fcf-cell:last-child { border-right: 0; }
.fcf-cell:hover, .fcf-cell.on { background: var(--accent-soft); color: var(--accent); }
.hero-fcf { margin: 6px 0 14px; max-width: 100%; overflow-x: auto; }
.fcf-tip { min-height: 3.2em; color: var(--muted); margin: 0; }
.fcf-tip b { color: var(--ink); }

.loop { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.loop-step { display: flex; align-items: center; gap: 10px; padding: 10px 14px; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; }
.loop-step small { display: block; color: var(--muted); font-size: .78rem; }
.loop-arrow { color: var(--muted); }
.st-dot {
  display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%;
  background: var(--blue-soft); color: var(--blue); font-weight: 600; font-size: .85rem; flex: none;
}

.stats { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 36px; }
.stat { padding: 10px 16px; border-radius: 12px; background: var(--surface-2); border: 1px dashed var(--line-strong); }
.stat span { font-weight: 700; font-size: 1.15rem; margin-right: 6px; }
.stat small { color: var(--muted); }

.section { margin-bottom: 36px; }
.section-head { display: flex; gap: 14px; align-items: center; margin-bottom: 14px; }
.section-head h2 { font-size: 1.35rem; margin: 0; }
.section-head p { margin: 0; color: var(--muted); font-size: .92rem; }
.section-id {
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px;
  border: 2px solid var(--ink); font-weight: 700; font-size: 1.1rem; flex: none;
}
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; }
.mcard {
  display: flex; flex-direction: column; gap: 6px; padding: 16px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line); color: var(--ink); text-decoration: none;
  box-shadow: var(--shadow); transition: transform .15s ease, border-color .15s ease;
}
.mcard:hover { transform: translateY(-2px); border-color: var(--blue); }
.mcard.soon { box-shadow: none; background: color-mix(in srgb, var(--surface) 60%, transparent); }
.mcard.soon h3, .mcard.soon p { opacity: .75; }
.mcard-top { display: flex; justify-content: space-between; align-items: center; }
.mcard-num { font-size: 1.5rem; font-weight: 600; color: var(--blue); }
.mcard h3 { font-size: 1.05rem; margin: 0; }
.mcard p { font-size: .88rem; color: var(--muted); margin: 0; flex: 1; }
.mcard-syms { display: flex; gap: 8px; color: var(--ink); margin: 2px 0; }
.mcard-foot { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-top: 6px; }
.mcard-tool { font-size: .78rem; color: var(--muted); font-family: var(--mono); }
.badge { font-size: .72rem; font-weight: 600; padding: 3px 9px; border-radius: 99px; background: var(--surface-2); color: var(--muted); white-space: nowrap; }
.mcard.ready .badge { background: var(--blue-soft); color: var(--blue); }
.mcard.done .badge { background: var(--ok-soft); color: var(--ok); }
.ring-bg { fill: none; stroke: var(--line); stroke-width: 4; }
.ring-fg { fill: none; stroke: var(--ok); stroke-width: 4; stroke-linecap: round; transform: rotate(-90deg); transform-origin: 18px 18px; transition: stroke-dashoffset .6s; }
.foot { border-top: 1px solid var(--line); padding-top: 18px; color: var(--muted); font-size: .82rem; }

/* ---------- module frame ---------- */
.crumb { display: flex; gap: 8px; flex-wrap: wrap; font-size: .85rem; color: var(--muted); margin-bottom: 14px; }
.crumb a { text-decoration: none; }
.mod-head { display: flex; gap: 20px; align-items: flex-start; margin-bottom: 22px; }
.mod-num {
  font-size: 2.4rem; font-weight: 600; line-height: 1; color: var(--blue); padding: 10px 14px;
  border: 2px solid var(--blue); border-radius: 12px; flex: none;
}
.mod-head h1 { font-size: clamp(1.6rem, 3.5vw, 2.3rem); margin-bottom: .2em; }
.mod-head .lead { margin: 0; }

.stepper { list-style: none; padding: 0; margin: 0 0 18px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; scroll-margin-top: 70px; }
.stepper button {
  width: 100%; display: flex; align-items: center; gap: 10px; text-align: left;
  padding: 10px 12px; border-radius: 12px; border: 1px solid var(--line); background: var(--surface); cursor: pointer;
}
.stepper small { display: block; color: var(--muted); font-size: .76rem; }
.stepper li.on button { border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-soft); }
.stepper li.done .st-dot { background: var(--ok); color: #fff; font-size: 0; }
.stepper li.done .st-dot::after { content: '✓'; font-size: .9rem; }
.step { animation: fadeIn .25s ease; }
.step > * + * { margin-top: 16px; }
.step-nav { display: flex; justify-content: space-between; margin-top: 22px; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.story { border-left: 4px solid var(--accent); }
.story p:last-child { margin: 0; }
.soon .goals { margin: 0 0 12px; padding-left: 1.2em; }
.tool-line { color: var(--muted); }
.takeaway { border-left: 4px solid var(--ok); }
.callout { padding: 10px 14px; border-radius: 10px; background: var(--blue-soft); }

/* ---------- quiz ---------- */
.quiz-top { display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: .85rem; margin-bottom: 12px; }
.quiz-dots { display: flex; gap: 5px; }
.quiz-dots i { width: 10px; height: 10px; border-radius: 50%; background: var(--line); }
.quiz-dots i.past { background: var(--blue); opacity: .5; }
.quiz-dots i.now { background: var(--blue); }
.quiz-q { font-size: 1.12rem; }
.quiz-opts { display: grid; gap: 8px; margin: 12px 0; }
.opt {
  display: flex; align-items: center; gap: 12px; text-align: left; padding: 11px 14px;
  border: 1px solid var(--line); border-radius: 10px; background: var(--surface-2); cursor: pointer; transition: border-color .15s, background .15s;
}
.opt:hover:not(:disabled) { border-color: var(--blue); }
.opt:disabled { cursor: default; }
.opt-key { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 7px; background: var(--surface); border: 1px solid var(--line); font-size: .8rem; flex: none; }
.opt.right { border-color: var(--ok); background: var(--ok-soft); }
.opt.right .opt-key { background: var(--ok); color: #fff; border-color: var(--ok); }
.opt.wrong { border-color: var(--bad); background: var(--bad-soft); }
.opt.wrong .opt-key { background: var(--bad); color: #fff; border-color: var(--bad); }
.quiz-explain { padding: 12px 14px; border-radius: 10px; font-size: .94rem; }
.quiz-explain.ok { background: var(--ok-soft); }
.quiz-explain.bad { background: var(--warn-soft); }
.quiz-actions { margin-top: 12px; text-align: right; }
.quiz-end { text-align: center; padding: 10px; }
.quiz-score { font-size: 3rem; font-weight: 600; color: var(--warn); }
.quiz-end.ok .quiz-score { color: var(--ok); }
.quiz-score small { font-size: 1.4rem; color: var(--muted); }
.ask .quiz-opts { margin-bottom: 0; }
.ask .quiz-explain { margin-top: 12px; }

/* ---------- drawings ---------- */
.drw { width: 100%; height: auto; display: block; }
.drw-obj { fill: var(--surface-2); stroke: var(--ink); stroke-width: 2; }
.drw-thin { stroke: var(--ink); stroke-width: 1; fill: none; }
.drw-cl { stroke: var(--accent); stroke-width: 1; stroke-dasharray: 14 3 3 3; }
.drw-ext, .drw-dim { stroke: var(--blue); stroke-width: 1; fill: none; }
.drw-arrow { fill: var(--blue); }
.drw-txt { font: 600 14px var(--mono); fill: var(--blue); }
.flash { animation: flash 1s ease; border-radius: 10px; }
@keyframes flash { 0%, 100% { background: transparent; } 30% { background: var(--accent-soft); } }

/* ---------- module 0: sezgi ---------- */
.bench-top { display: grid; grid-template-columns: 1.4fr 1fr; gap: 20px; align-items: center; }
.bench-ctl .btn { width: 100%; }
.parts { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; margin-top: 16px; }
.part {
  display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 10px 6px;
  border-radius: 10px; border: 1px solid var(--line); background: var(--surface-2); animation: fadeIn .3s ease both;
}
.part svg { width: 100%; max-width: 60px; }
.mini-shaft { fill: var(--line-strong); stroke: var(--ink); stroke-width: 1; }
.part-id { font-size: .72rem; color: var(--muted); }
.part-val { font-size: 1rem; font-weight: 600; }
.part-verdict { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; }
.part.ok { border-color: var(--ok); background: var(--ok-soft); }
.part.ok .part-verdict { color: var(--ok); }
.part.bad { border-color: var(--bad); background: var(--bad-soft); }
.part.bad .part-verdict { color: var(--bad); }
.hint { margin: 14px 0 0; color: var(--muted); }
.hint b { color: var(--ink); }
.numline { margin-top: 12px; }
.numline svg { width: 100%; height: auto; }
.nl-zone { fill: var(--ok-soft); stroke: var(--ok); stroke-dasharray: 4 3; }
.nl-zlbl { font: 600 10px var(--mono); fill: var(--ok); }
.nl-axis, .nl-tick { stroke: var(--ink); }
.nl-lbl { font: 10px var(--mono); fill: var(--muted); }
.nl-dot line { stroke: var(--line-strong); }
.nl-dot circle { stroke: var(--surface); stroke-width: 2; }
.nl-dot.ok circle { fill: var(--ok); }
.nl-dot.bad circle { fill: var(--bad); }
.nl-dot text { font: 700 9px var(--mono); fill: #fff; }
.asks { display: grid; gap: 16px; }
.tol-btn { justify-self: start; }

/* ---------- module 0: kavram ---------- */
.car-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.car-dots { display: flex; gap: 6px; }
.car-dots button { width: 28px; height: 6px; border: 0; border-radius: 99px; background: var(--line); cursor: pointer; padding: 0; }
.car-dots button.past { background: var(--blue-soft); }
.car-dots button.now { background: var(--blue); }
.car-count { color: var(--muted); font-size: .85rem; }
.car-nav { display: flex; justify-content: space-between; margin-top: 18px; border-top: 1px solid var(--line); padding-top: 14px; }
.slide { animation: fadeIn .25s ease; }
.slide h3 { font-size: 1.35rem; }
.slide-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 24px; align-items: start; }
.bell, .cost-chart { width: 100%; height: auto; display: block; }
.bell-curve { fill: none; stroke: var(--blue); stroke-width: 2.5; }
.bell-band { fill: var(--blue-soft); }
.bell-3s { stroke: var(--accent); stroke-dasharray: 4 3; }
.bell-dot { fill: var(--accent); }
.bell-dot.drop { animation: drop .45s cubic-bezier(.3, 1.4, .6, 1) both; }
@keyframes drop { from { transform: translateY(-160px); opacity: 0; } to { transform: none; opacity: 1; } }
.ax { stroke: var(--ink); stroke-width: 1; }
.ax-tick { stroke: var(--ink); }
.ax-lbl { font: 10px var(--mono); fill: var(--muted); }
.ax-lbl.strong { fill: var(--accent); font-weight: 600; }

.pairs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 10px; }
.pair { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 8px; border-radius: 10px; border: 1px solid var(--line); font-size: .78rem; animation: fadeIn .3s ease both; }
.pair b { font-size: .8rem; }
.pair-bush { fill: var(--line-strong); }
.pair-hole { fill: var(--surface); }
.pair-shaft { fill: var(--blue); opacity: .85; }
.pair.ok { border-color: var(--ok); background: var(--ok-soft); }
.pair.ok b { color: var(--ok); }
.pair.tight, .pair.loose { border-color: var(--bad); background: var(--bad-soft); }
.pair.tight b, .pair.loose b { color: var(--bad); }
.pair.tight .pair-shaft { fill: var(--bad); }

.cost-curve { fill: none; stroke: var(--accent); stroke-width: 2.5; }
.cband rect { fill: var(--blue-soft); stroke: var(--blue); stroke-width: 1; opacity: .7; }
.cband text { font: 600 10px var(--sans); fill: var(--muted); }
.cband.on rect { fill: var(--blue); opacity: 1; }
.cband.on text { fill: var(--blue); }
.cost-marker { stroke: var(--ink); stroke-dasharray: 3 3; }
.cost-dot { fill: var(--accent); stroke: var(--surface); stroke-width: 2; }
.cost-info { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 10px 0; }
.cost-info div { padding: 10px; border-radius: 10px; background: var(--surface-2); border: 1px solid var(--line); }
.cost-info small { display: block; color: var(--muted); font-size: .74rem; }
.cost-info b { font-size: .95rem; }

.rule-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 16px 0; }
.rule { padding: 14px 16px; border-radius: 12px; border: 1px solid var(--line); }
.rule h4 { margin-bottom: .4em; }
.rule ul { margin: 0; padding-left: 1.1em; font-size: .92rem; }
.rule.bad { background: var(--bad-soft); border-color: color-mix(in srgb, var(--bad) 40%, transparent); }
.rule.bad h4 { color: var(--bad); }
.rule.good { background: var(--ok-soft); border-color: var(--ok); }
.rule.good h4 { color: var(--ok); }

/* ---------- module 0: simulator ---------- */
.brief { display: grid; grid-template-columns: 1.5fr 1fr; gap: 20px; align-items: center; }
.brief p:last-child { margin: 0; }
.stars-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.stars-list li { display: flex; gap: 10px; align-items: center; padding: 8px 12px; border-radius: 10px; background: var(--surface-2); font-size: .88rem; }
.star { font-size: 1.2rem; color: var(--line-strong); transition: color .3s, transform .3s; }
.stars-list li.got { background: var(--warn-soft); }
.stars-list li.got .star { color: var(--warn); transform: scale(1.2); }

.sim { display: grid; grid-template-columns: 330px 1fr; gap: 16px; align-items: start; }
.sim > *, .slide-grid > *, .plate-grid > * { min-width: 0; }
.sim-ctl { position: sticky; top: 70px; padding: 16px; }
.ctl-block { padding-bottom: 12px; margin-bottom: 12px; border-bottom: 1px dashed var(--line); }
.ctl-block h4 { font-size: .95rem; margin: 0 0 4px; }
.lim { font-size: .85rem; color: var(--accent); }
.lim small { color: var(--muted); }
.proc { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.proc button { display: flex; flex-direction: column; align-items: flex-start; padding: 7px 9px; border: 1px solid var(--line); border-radius: 9px; background: var(--surface-2); cursor: pointer; text-align: left; }
.proc button b { font-size: .82rem; }
.proc button small { font-size: .7rem; color: var(--muted); }
.proc button.on { border-color: var(--blue); background: var(--blue-soft); }
.proc button.on b { color: var(--blue); }
.cost-pre { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin-bottom: 12px; }
.cost-pre div { padding: 6px 8px; border-radius: 8px; background: var(--surface-2); }
.cost-pre small { display: block; font-size: .68rem; color: var(--muted); line-height: 1.2; }
.cost-pre b { font-size: .9rem; }
.run { width: 100%; }

.sim-out { display: grid; gap: 14px; min-width: 0; }
.kpis { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; }
.kpi { padding: 10px 12px; border-radius: 12px; background: var(--surface); border: 1px solid var(--line); min-width: 0; }
.kpi small { display: block; font-size: .72rem; color: var(--muted); }
.kpi b { font-size: 1.3rem; }
.kpi .kpi-sub { display: block; font-size: .7rem; color: var(--muted); min-height: 1em; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kpi.good b { color: var(--ok); }
.kpi.bad { border-color: var(--bad); }
.kpi.bad b { color: var(--bad); }
.charts { display: grid; gap: 6px; padding: 14px 16px; }
.chart-h { display: flex; justify-content: space-between; gap: 8px; font-size: .84rem; }
.zone-lbl { color: var(--muted); font-size: .76rem; white-space: nowrap; }
.chart svg { width: 100%; height: 108px; display: block; }
.zone { fill: var(--blue-soft); }
.zone-fit { fill: var(--ok-soft); }
.zone-edge { stroke: var(--blue); stroke-dasharray: 3 3; }
.bar-in { fill: var(--blue); }
.chart[data-c="clr"] .bar-in { fill: var(--ok); }
.chart[data-c="clr"] .zone-edge { stroke: var(--ok); }
.bar-out { fill: var(--bad); }

.fit { display: grid; grid-template-columns: 180px 1fr; gap: 18px; align-items: center; }
.fit-svg { width: 100%; height: auto; }
.fit-bush { fill: var(--line-strong); }
.hatch-line { stroke: var(--muted); stroke-width: 1; opacity: .5; }
.fit-hole { fill: var(--surface); }
.fit-shaft { fill: var(--blue); opacity: .9; transition: r .1s; }
.fit-shaft.tight { fill: var(--warn); }
.fit-shaft.jam { fill: var(--bad); opacity: .75; }
.fit-shaft.loose { fill: var(--bad); }
.fit-shaft.ok { fill: var(--ok); }
.fit-cl { stroke: var(--surface); stroke-width: 1; stroke-dasharray: 4 2; }
.wobble { animation: wobble .5s ease-in-out infinite alternate; transform-origin: 100px 100px; }
@keyframes wobble { from { transform: rotate(-8deg); } to { transform: rotate(8deg); } }
.fit-state { font-size: 1rem; min-height: 1.6em; }
.strip { display: flex; flex-wrap: wrap; gap: 3px; min-height: 16px; }
.strip i { width: 12px; height: 12px; border-radius: 3px; }
.strip i.ok { background: var(--ok); }
.strip i.tight { background: var(--warn); }
.strip i.loose { background: var(--bad); }

.feedback { display: grid; gap: 8px; }
.feedback:empty { display: none; }
.msg { padding: 12px 14px; border-radius: 10px; border-left: 4px solid; font-size: .93rem; animation: fadeIn .3s ease; }
.msg.bad { background: var(--bad-soft); border-color: var(--bad); }
.msg.warn { background: var(--warn-soft); border-color: var(--warn); }
.msg.info { background: var(--blue-soft); border-color: var(--blue); }
.msg.ok { background: var(--ok-soft); border-color: var(--ok); }
.runs h4 { margin-bottom: 8px; }
.table-wrap { overflow-x: auto; }
.runs table { width: 100%; border-collapse: collapse; font-size: .82rem; }
.runs th, .runs td { padding: 6px 8px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
.runs th { color: var(--muted); font-weight: 600; }
.runs tr.good td:last-child { color: var(--warn); }
.runs td.bad { color: var(--bad); font-weight: 700; }

/* ---------- dimension text (drawing style) ---------- */
.dim { display: inline-flex; align-items: center; gap: 3px; font-family: var(--mono); font-weight: 600; color: var(--blue); white-space: nowrap; }
.dim-nom { font-size: 1em; }
.dim-pm { font-size: .82em; }
.dim-stack { display: inline-flex; flex-direction: column; font-size: .6em; line-height: 1.1; }
.dim-stack.dim-lim { font-size: .8em; }
.note-dim { font-size: 1.5rem; }
.note-dim.inline { font-size: 1.15rem; }
.quiz-q .dim { font-size: 1.15em; vertical-align: middle; }

/* ---------- module 1 ---------- */
.notes4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.note-card {
  display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 14px 8px;
  border: 1px solid var(--line); border-radius: 12px; background: var(--surface-2); cursor: pointer; border-top: 4px solid var(--cc);
}
.note-card small { color: var(--muted); font-size: .74rem; }
.note-card.on small::before { content: '✓ '; color: var(--cc); }
.note-card.on { background: var(--surface); }
.note-k { font-weight: 700; color: var(--cc); }
.c1 { --cc: #1c7ed6; } .c2 { --cc: #ae3ec9; } .c3 { --cc: #0ca678; } .c4 { --cc: #e8590c; }
.nl4 svg { width: 100%; height: auto; margin-top: 12px; }
.band rect { fill: var(--cc); opacity: .75; }
.band text { font: 700 11px var(--mono); fill: var(--cc); }
.band .band-r { font-weight: 400; fill: var(--muted); }
.nl-nom { stroke: var(--accent); stroke-dasharray: 3 3; }

.anat { width: 100%; height: auto; }
.an-zero { stroke: var(--ink); stroke-width: 1.5; }
.an-lbl { font: 11px var(--mono); fill: var(--muted); }
.an-lbl.strong { fill: var(--ink); font-weight: 600; }
.an-lbl.tol { fill: var(--accent); }
.an-zone.shaft { fill: var(--blue-soft); stroke: var(--blue); stroke-width: 1.5; }
.an-zone.hole { fill: var(--accent-soft); stroke: var(--accent); stroke-width: 1.5; }
.an-dim, .an-ext { stroke: var(--ink); stroke-width: 1; }
.an-ext { stroke-dasharray: 2 2; }
.an-head { fill: var(--ink); }
.forms3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 8px; }
.forms3 > div { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 10px 6px; border-radius: 10px; background: var(--surface-2); border: 1px solid var(--line); font-size: 1.3rem; text-align: center; }
.forms3 small { font-size: .72rem; color: var(--muted); font-family: var(--sans); }

.flips { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 14px 0; }
.flip { position: relative; height: 170px; border: 0; padding: 0; background: none; cursor: pointer; perspective: 800px; }
.flip-face {
  position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; padding: 12px;
  border-radius: 12px; border: 1px solid var(--line); backface-visibility: hidden; transition: transform .5s ease;
}
.flip-face small { font: 600 .72rem var(--mono); text-transform: uppercase; letter-spacing: .06em; }
.flip-face em { font-style: normal; font-size: .8rem; color: var(--muted); text-align: center; }
.flip-face.front { background: var(--bad-soft); border-color: color-mix(in srgb, var(--bad) 40%, transparent); }
.flip-face.front small { color: var(--bad); }
.flip-face.front .dim { color: var(--bad); }
.flip-face.back { background: var(--ok-soft); border-color: var(--ok); transform: rotateY(180deg); }
.flip-face.back small { color: var(--ok); }
.flip.flipped .front { transform: rotateY(-180deg); }
.flip.flipped .back { transform: rotateY(0); }

.slide-grid.wide-right { grid-template-columns: 1fr 1.3fr; }
.chain-svg, .closed-svg { width: 100%; height: auto; display: block; }
.drw-hole { fill: var(--surface); stroke: var(--ink); stroke-width: 1.5; }
.drw-txt.sm { font-size: 11px; }
.drw-txt.xs { font-size: 8px; }
.unc { fill: var(--accent-soft); stroke: var(--accent); stroke-dasharray: 3 2; }
.cdim { cursor: pointer; }
.cdim-hit, .gdim-hit { fill: transparent; }
.cdim:hover .cdim-hit, .cdim:focus .cdim-hit { fill: var(--accent-soft); }
.cdim.aux .drw-txt { fill: var(--muted); }
.cdim:focus { outline: none; }
.closed-msg { margin-top: 10px; }

.game-top { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; color: var(--muted); font-size: .88rem; }
.g-progress { display: flex; gap: 4px; flex: 1; }
.g-progress i { flex: 1; height: 6px; border-radius: 99px; background: var(--line); max-width: 40px; }
.g-progress i.now { background: var(--blue); }
.g-progress i.ok { background: var(--ok); }
.g-progress i.bad { background: var(--bad); }
.g-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: center; }
.g-drawing { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 18px; border-radius: 12px; background: var(--surface-2); border: 1px dashed var(--line-strong); }
.g-dim { font-size: 2.2rem; }
.g-meas { font-size: 1.8rem; font-weight: 600; padding: 2px 14px; border-radius: 8px; background: var(--ink); color: #7cf29c; letter-spacing: .04em; }
.g-form { display: grid; gap: 10px; }
.g-field { display: grid; gap: 4px; font-size: .86rem; font-weight: 600; }
.g-field input {
  font: 600 1.1rem var(--mono); padding: 9px 12px; border-radius: 10px; border: 1px solid var(--line-strong);
  background: var(--surface); color: var(--ink); width: 100%;
}
.g-field input:focus { outline: 2px solid var(--blue); outline-offset: 1px; }
.g-field input.right { border-color: var(--ok); background: var(--ok-soft); }
.g-field input.wrong { border-color: var(--bad); background: var(--bad-soft); }
.g-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.btn.ok-btn { background: var(--ok); border-color: var(--ok); }
.btn.bad-btn { background: var(--bad); border-color: var(--bad); }
.g-result { display: grid; gap: 10px; justify-items: start; margin-top: 14px; }
.g-result:empty { display: none; }

/* ---------- module 2 ---------- */
.plate-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 18px; align-items: start; }
.gdim .drw-txt { transition: fill .2s; }
.plate.live .gdim { cursor: pointer; }
.plate.live .gdim:not(.seen) .gdim-hit { fill: var(--accent-soft); animation: pulse 1.6s ease-in-out infinite; }
.gdim.seen .drw-txt { fill: var(--ok); }
.gdim.own.seen .drw-txt { fill: var(--accent); }
.gtag { font: 700 10px var(--mono); fill: var(--ok); }
.gdim.own .gtag { fill: var(--accent); }
@keyframes pulse { 50% { opacity: .35; } }
.tblock rect { fill: var(--surface-2); stroke: var(--ink); }
.tblock line { stroke: var(--ink); }
.tblock text { font: 10px var(--mono); fill: var(--ink); }
.tb-note { font-weight: 700 !important; fill: var(--accent) !important; font-size: 12px !important; }
.flash-note rect { animation: flashfill 1.2s ease; }
@keyframes flashfill { 30% { fill: var(--accent-soft); } }
.mini-table { width: 100%; border-collapse: collapse; font-size: .85rem; }
.mini-table th, .mini-table td { padding: 5px 8px; border-bottom: 1px solid var(--line); text-align: left; }
.mini-table th { color: var(--muted); font-weight: 600; font-size: .78rem; }
.mini-table tr.own td { color: var(--accent); font-size: .8rem; }

.lin-ctl { display: grid; grid-template-columns: 1fr auto; gap: 16px; align-items: end; }
.lin-result { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px; padding: 12px 14px; border-radius: 10px; background: var(--blue-soft); margin: 8px 0 12px; }
.lin-result .big { font-size: 1.25rem; font-weight: 600; color: var(--blue); display: inline-flex; align-items: center; gap: 6px; }
.iso-table { width: 100%; border-collapse: collapse; font-size: .84rem; }
.iso-table th, .iso-table td { padding: 7px 8px; border: 1px solid var(--line); text-align: center; white-space: nowrap; }
.iso-table thead th { font: 600 .74rem var(--mono); color: var(--muted); background: var(--surface-2); }
.iso-table tbody th { font-family: var(--mono); background: var(--surface-2); }
.iso-table td { font-family: var(--mono); cursor: pointer; }
.iso-table .col { background: var(--blue-soft); }
.iso-table tr.row td, .iso-table tr.row th { background: color-mix(in srgb, var(--blue-soft) 60%, transparent); }
.iso-table td.hit { background: var(--blue); color: #fff; font-weight: 700; }
.ang-svg, .geo-svg { width: 100%; height: auto; }
.ang-zone { fill: var(--accent-soft); stroke: var(--accent); stroke-dasharray: 3 2; }
.ang-edge { stroke: var(--accent); stroke-width: 1.5; }
.ang-arc { fill: none; stroke: var(--blue); }
.edge-table { margin-top: 6px; }
.geo-zone { fill: var(--accent-soft); stroke: var(--accent); stroke-dasharray: 4 3; }
.geo-zone.ring { fill: none; stroke: var(--accent-soft); stroke-dasharray: none; }
.geo-ind { stroke: var(--ink); stroke-width: 2; }
.note-chips { display: flex; gap: 6px; margin: 8px 0 12px; }
.note-chip { font-size: 1.6rem; font-weight: 700; padding: 6px 14px; border-radius: 10px; border: 2px solid var(--line-strong); background: var(--surface); color: var(--ink); cursor: pointer; }
.note-chip.on, .note-chip:hover { border-color: var(--accent); color: var(--accent); }

.calc .calc-out { display: grid; gap: 4px; padding: 14px; margin-top: 12px; border-radius: 12px; background: var(--blue-soft); text-align: center; min-height: 70px; align-content: center; }
.calc .big { font-size: 1.5rem; color: var(--blue); }
.job-tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin-bottom: 14px; }
.job-tabs button { display: flex; flex-direction: column; align-items: flex-start; padding: 8px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface-2); cursor: pointer; font-weight: 600; text-align: left; }
.job-tabs button small { font-weight: 400; color: var(--muted); font-size: .76rem; }
.job-tabs button.on { border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-soft); }
.job-tabs button.perfect::after { content: '✓ kusursuz'; font-size: .7rem; color: var(--ok); }
.tb-strip { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; padding: 8px 12px; border: 2px solid var(--ink); border-radius: 4px; margin-bottom: 10px; font-size: .88rem; }
.tb-strip b { color: var(--accent); }
.rep-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.rep-table th, .rep-table td { padding: 7px 8px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
.rep-table th { color: var(--muted); font-size: .78rem; }
.rep-table tr.right { background: var(--ok-soft); }
.rep-table tr.wrong { background: var(--bad-soft); }
.pick { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.pick button { border: 0; background: var(--surface); padding: 5px 10px; cursor: pointer; font-size: .8rem; }
.pick button + button { border-left: 1px solid var(--line); }
.pick button.on.ok { background: var(--ok); color: #fff; }
.pick button.on.bad { background: var(--bad); color: #fff; }
.rep-actions { display: flex; gap: 8px; margin: 14px 0 10px; flex-wrap: wrap; }

/* ---------- module 3 ---------- */
.fit-tasks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 10px; }
.ftask { display: flex; align-items: flex-start; gap: 10px; text-align: left; padding: 10px 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface-2); cursor: pointer; }
.ftask b { display: block; font-size: .88rem; }
.ftask small { color: var(--muted); font-size: .76rem; }
.ftask-n { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--blue-soft); color: var(--blue); font-weight: 700; flex: none; }
.ftask-ok { margin-left: auto; color: var(--ok); font-weight: 700; visibility: hidden; }
.ftask.on { border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-soft); background: var(--surface); }
.ftask.done { border-color: var(--ok); }
.ftask.done .ftask-ok { visibility: visible; }
.ftask.done .ftask-n { background: var(--ok); color: #fff; }
.press-svg { width: 100%; height: auto; display: block; }
.shaft-g { transform-box: view-box; }
.press-svg.pressing .bush { animation: press .25s linear infinite; }
@keyframes press { 50% { transform: translateX(1.5px); } }
.shake { animation: shake .4s ease 2; }
@keyframes shake { 25% { translate: -4px 0; } 75% { translate: 4px 0; } }
.wobble-x .fit-shaft { animation: wobblex .35s ease-in-out infinite alternate; transform-box: fill-box; transform-origin: center; }
@keyframes wobblex { from { transform: rotate(-1.4deg); } to { transform: rotate(1.4deg); } }
.fit-ctl { display: grid; grid-template-columns: 1.4fr 1.4fr auto; gap: 14px; align-items: center; }
.fit-read b.good { color: var(--ok); }
.fit-read b.badc { color: var(--bad); }
.fit-msg { margin-top: 10px; }
.it-svg { width: 100%; height: auto; }
.itbar rect { fill: var(--blue-soft); stroke: var(--blue); }
.itbar.on rect { fill: var(--blue); }
.fd-ctl { display: grid; grid-template-columns: auto 1fr; gap: 16px; align-items: end; }
.zone-svg { width: 100%; height: auto; display: block; }
.zz { cursor: pointer; }
.zz rect { stroke-width: 1.5; }
.zz.hole rect { fill: var(--accent-soft); stroke: var(--accent); }
.zz.shaft rect { fill: var(--blue-soft); stroke: var(--blue); }
.zz.ok rect { fill: var(--ok-soft); stroke: var(--ok); }
.zz.warn rect { fill: var(--warn-soft); stroke: var(--warn); }
.zz.bad rect { fill: var(--bad-soft); stroke: var(--bad); }
.zz.on rect { stroke-width: 3; }
.zz.hole.on rect { fill: var(--accent); fill-opacity: .35; }
.zz-lbl { font: 700 12px var(--mono); fill: var(--ink); }
.legend { display: flex; gap: 12px; justify-content: center; font-size: .8rem; margin-top: 4px; }
.lg::before { content: ''; display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; }
.lg.ok::before { background: var(--ok); } .lg.warn::before { background: var(--warn); } .lg.bad::before { background: var(--bad); }
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.bad { background: var(--bad-soft); color: var(--bad); }
.pref-table td:last-child { white-space: normal; text-align: left; font-family: var(--sans); min-width: 260px; }
.pref-table td { cursor: pointer; }
.pref-bar { margin-top: 12px; }
.rbar { width: 100%; height: auto; display: block; }
.rb-int { fill: var(--bad-soft); }
.rb-clr { fill: var(--ok-soft); }
.rb-fit { stroke-width: 2; }
.rb-fit.ok { fill: var(--ok); } .rb-fit.warn { fill: var(--warn); } .rb-fit.bad { fill: var(--bad); }
.rb-zero { stroke: var(--ink); stroke-width: 2; }
.seg.letters button { min-width: 34px; }
.fit-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 14px 18px; }
.fit-code { font-size: 1.7rem; font-weight: 600; color: var(--blue); }
.fit-type { font-size: .85rem; padding: 5px 12px; }
.fit-diag { padding: 10px 14px; }
.kpis4 { grid-template-columns: repeat(4, 1fr); }
.kpis4 .kpi b { font-size: 1rem; }
.ftask2 { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--line); }
.ftask2 small { display: block; color: var(--muted); font-size: .82rem; }
.ftask2.done b::after { content: ' ✓'; color: var(--ok); }
.task-msg { margin-top: 10px; }

/* ---------- tolerance frame as content (not the hero buttons) ---------- */
span.fcf { vertical-align: middle; }
span.fcf .fcf-cell { cursor: default; min-width: 40px; height: 40px; padding: 0 9px; font-size: 1.05rem; color: var(--ink); }
span.fcf.sm .fcf-cell { min-width: 32px; height: 32px; padding: 0 7px; font-size: .92rem; }
span.fcf.big .fcf-cell { min-width: 58px; height: 58px; padding: 0 14px; font-size: 1.35rem; }
span.fcf .fcf-cell:hover { background: transparent; color: var(--ink); }
.fcf-empty { color: var(--line-strong); font-family: var(--mono); }
.fcf-mod { font-size: .8em; margin-left: 4px; }
.ted { display: inline-block; padding: 0 5px; border: 1.5px solid var(--ink); font-weight: 600; line-height: 1.3; }
.quiz-fcf { display: inline-block; margin: 6px 0; font-size: 1rem; }
.svg-fcf rect { fill: var(--surface); stroke: var(--ink); stroke-width: 1.2; }
.svg-fcf text { font: 600 10px var(--mono); fill: var(--ink); }
.svg-fcf g { stroke: var(--ink); }
.svg-datum path { fill: var(--ink); }
.svg-datum line { stroke: var(--ink); }
.svg-datum rect { fill: var(--surface); stroke: var(--ink); stroke-width: 1.2; }
.svg-datum text { font: 700 11px var(--mono); fill: var(--ink); }
.ted-box { fill: none; stroke: var(--blue); stroke-width: 1.2; }

/* ---------- module 4 ---------- */
.m4-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start; }
.m4-btns { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.zplot { width: 100%; max-width: 380px; height: auto; display: block; margin: 0 auto; touch-action: none; }
.zplot.sm { max-width: 260px; }
.zp-grid { stroke: var(--line); stroke-width: .7; }
.zp-grid.major { stroke: var(--line-strong); stroke-width: 1.2; }
.zp-circle { fill: var(--ok-soft); stroke: var(--ok); stroke-width: 1.6; stroke-dasharray: 5 3; }
.zp-square { fill: var(--blue-soft); stroke: var(--blue); stroke-width: 1.6; }
.zp-lbl { font: 600 10px var(--mono); }
.zp-lbl.sq { fill: var(--blue); }
.zp-lbl.ci { fill: var(--ok); }
.zp-ax { font: 600 10px var(--mono); fill: var(--muted); }
.zp-pt { stroke: var(--surface); stroke-width: 2; fill: var(--muted); }
.zp-pt.ok { fill: var(--ok); }
.zp-pt.bad { fill: var(--bad); }
.zp-pt.waste { fill: var(--warn); }
.zp-pt.tiny { r: 2; stroke-width: 0; opacity: .75; }
.zp-n { font: 700 8px var(--mono); fill: #fff; pointer-events: none; }
.zp-probe line { stroke: var(--blue); stroke-dasharray: 3 2; }
.zp-probe circle { fill: var(--blue); stroke: #fff; stroke-width: 2.5; cursor: grab; }
.lg.sq::before { background: var(--blue); }
.lg.ci::before { background: var(--ok); }
.org-svg, .form-svg, .setup-svg, .sim-svg, .arrow-svg { width: 100%; height: auto; display: block; }
.datum-plane { stroke: var(--accent); stroke-width: 2.5; }
.meas-line { stroke: var(--accent); stroke-width: 1.4; stroke-dasharray: 4 3; }
.meas-dot { fill: var(--accent); }
.slot-r { fill: var(--surface-2); }
.slot-edge { stroke: var(--ink); stroke-width: 2; }
.jam-part { fill: var(--bad-soft) !important; stroke: var(--bad) !important; }
.cmp-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.cmp-card { padding: 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface-2); min-width: 0; }
.cmp-card > small { display: block; font: 600 .74rem var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--accent); margin-bottom: 4px; }
.cmp-table td { white-space: normal; font-family: var(--sans); cursor: default; text-align: left; }
.cmp-table tbody th { text-align: left; font-family: var(--sans); white-space: nowrap; }
.spec-box { display: flex; flex-direction: column; align-items: center; gap: 6px; margin-bottom: 8px; }
.spec-box > small { color: var(--muted); }
.dim-line { font-weight: 600; color: var(--blue); }
.g-meas.cmm { font-size: 1.25rem; text-align: left; line-height: 1.5; }

/* ---------- module 5 ---------- */
.match-frame { display: flex; justify-content: center; margin: 6px 0 18px; overflow-x: auto; }
.match .slot { cursor: pointer; border-radius: 6px; padding: 4px; transition: background .2s, box-shadow .2s; display: inline-flex; align-items: center; }
.match .slot:hover { background: var(--accent-soft); }
.match .slot.placed { background: var(--ok-soft); box-shadow: inset 0 0 0 2px var(--ok); }
.match .slot.nope { background: var(--bad-soft); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.tag { padding: 8px 14px; border-radius: 99px; border: 1px solid var(--line-strong); background: var(--surface-2); cursor: pointer; font-size: .9rem; }
.tag.on { border-color: var(--blue); background: var(--blue); color: #fff; }
.tag.used { opacity: .35; text-decoration: line-through; cursor: default; }
.read-out { font-size: 1.02rem; padding: 12px 14px; border-left: 3px solid var(--blue); background: var(--blue-soft); border-radius: 0 10px 10px 0; }
.read-out:empty { display: none; }
.read-out small { color: var(--muted); }
.cell-legend { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 10px 0 14px; }
.cell-legend div { padding: 10px 12px; border-radius: 10px; background: var(--surface-2); border: 1px solid var(--line); font-size: .88rem; }
.cell-legend b { display: block; color: var(--accent); font-family: var(--mono); font-size: .8rem; }
.ex-frame, .frame-live { display: flex; justify-content: center; margin: 12px 0; overflow-x: auto; }
.chars-ctl { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.chars-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 8px; }
.char-card { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 12px 8px; border-radius: 12px; border: 1px solid var(--line); background: var(--surface-2); text-align: center; animation: fadeIn .25s ease; }
.char-card b { font-size: .88rem; }
.char-card small { color: var(--muted); font-size: .74rem; }
.hot { cursor: pointer; }
.hot:hover, .hot.on { filter: drop-shadow(0 0 4px var(--accent)); }
.builder .sim-ctl .lbl { margin-top: 12px; }
.sym-pal { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.sym-pal button { display: grid; place-items: center; height: 38px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface-2); cursor: pointer; }
.sym-pal button.on { border-color: var(--blue); background: var(--blue-soft); color: var(--blue); }
.val-row { display: flex; gap: 8px; align-items: center; }
.val-row .seg { margin: 0; }
.val-in { flex: 1; min-width: 0; padding: 8px 10px; border-radius: 10px; border: 1px solid var(--line-strong); background: var(--surface); color: var(--ink); font-size: 1rem; }
.datum-row { display: flex; align-items: center; margin-bottom: 6px; }
.datum-row small { width: 64px; font-size: .74rem; color: var(--muted); padding-left: 6px; }
.task-tabs { display: flex; gap: 6px; margin-bottom: 10px; }
.task-tabs button { width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--line); background: var(--surface-2); cursor: pointer; font-weight: 700; }
.task-tabs button.on { border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-soft); }
.task-tabs button.done { background: var(--ok); color: #fff; border-color: var(--ok); }
.task-text { margin: 0; font-size: 1.02rem; }
.frame-card { display: grid; gap: 10px; }
.frame-errs { display: grid; gap: 6px; }
.frame-errs:empty, .frame-result:empty { display: none; }

/* ---------- module 6 ---------- */
.fixture { fill: var(--line-strong); }
.three-host { position: relative; min-height: 200px; border-radius: 12px; background: radial-gradient(circle at 50% 40%, var(--surface-2), transparent 75%); }
.three-canvas { display: block; width: 100%; border-radius: 12px; cursor: grab; touch-action: none; }
.three-canvas:active { cursor: grabbing; }
.dofs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin: 10px 0; }
.dof { display: flex; flex-direction: column; align-items: flex-start; padding: 7px 9px; border-radius: 9px; border: 1px solid var(--line); background: var(--surface-2); cursor: pointer; text-align: left; }
.dof b { font-size: .95rem; }
.dof small { font-size: .7rem; color: var(--muted); }
.dof.on { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
.dof.locked { background: var(--bad-soft); border-color: var(--bad); }
.dof.locked b::after { content: ' 🔒'; font-size: .75rem; }
.dof.marked { background: var(--blue-soft); border-color: var(--blue); }
.dof.marked b::after { content: ' ✓'; color: var(--blue); }
.dof.right { outline: 2px solid var(--ok); }
.dof.wrong { outline: 2px solid var(--bad); }
.dof:disabled { cursor: default; }
.dofs.mini .dof { cursor: default; }
.steps321 { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.steps321 .btn.on { background: var(--blue); color: #fff; }
.contact { fill: #f0b400; stroke: var(--ink); }
.dz { opacity: .35; }
.dz.a { fill: #d24a12; } .dz.b { fill: #1c7ed6; }
.target path, .target line { stroke: var(--ink); stroke-width: 1.4; fill: none; }
.target circle { fill: var(--surface); stroke: var(--ink); }
.target text { font: 600 8px var(--mono); fill: var(--ink); }
.det { grid-template-columns: 340px 1fr; }
.case-title { font-size: 1.02rem; margin: 6px 0 8px; }
.case-fcf { margin-bottom: 4px; }
.case-msg { margin-top: 10px; }
.three-card { padding: 10px; }

/* ---------- section C shared ---------- */
.mz-svg, .lab-svg, .zone-art, .lobe-svg, .dia-svg, .env-svg, .bench-svg, .or-svg, .hier-svg, .hole-svg, .sb-svg,
.pat-svg, .coax-svg, .sym-svg, .pat-mini, .pf-svg, .ls-svg, .trace-svg, .axial-svg, .see-svg { width: 100%; height: auto; display: block; }
.lab-svg.round, .lobe-svg, .see-svg { max-width: 340px; margin: 0 auto; }
.lab-svg.round { touch-action: none; cursor: grab; }
.mz-band { fill: var(--blue-soft); }
.mz-band.ok { fill: var(--ok-soft); }
.mz-band.bad { fill: var(--bad-soft); }
.mz-line { stroke: var(--blue); stroke-width: 1.4; stroke-dasharray: 5 3; }
.mz-ring { fill: none; stroke: var(--blue); stroke-width: 1.4; stroke-dasharray: 5 3; }
.prof-line { fill: none; stroke: var(--accent); stroke-width: 2; stroke-linejoin: round; }
.prof-line.fill { fill: var(--accent-soft); }
.prof-pt { fill: var(--accent); stroke: var(--surface); stroke-width: 1.5; }
.geo-ring-in { fill: none; stroke: var(--accent); stroke-dasharray: 4 3; }
.geo-zone.ring2 { fill: var(--accent-soft); stroke: var(--accent); stroke-dasharray: 4 3; }
.geo-zone.badz { fill: var(--bad-soft); stroke: var(--bad); }
.env-box { fill: none; stroke: var(--blue); stroke-width: 1.5; stroke-dasharray: 6 4; }
.ctr path { stroke: var(--blue); stroke-width: 2; }
.ctr circle { fill: none; stroke: var(--blue); stroke-width: 2; }
.lab-head { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-bottom: 8px; }
.feat { stroke: var(--accent); stroke-width: 3; }

/* dial indicator */
.dial-rim { fill: var(--line-strong); }
.dial-face { fill: #fdfcf7; }
.dt { stroke: #33414f; stroke-width: .8; }
.dt-major { stroke: #1b2836; stroke-width: 1.6; }
.dl { font: 600 8px var(--mono); fill: #33414f; }
.dial-needle { stroke: #c43030; stroke-width: 2.2; stroke-linecap: round; }
.dial-hub { fill: #1b2836; }
.dial-read { font: 700 12px var(--mono); fill: #1b2836; }
.dp-max { fill: #c43030; }
.dp-min { fill: #1c5d99; }
.bench-grid { display: grid; grid-template-columns: 1fr 170px; gap: 14px; align-items: center; }
.dial-box { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.cov { width: 150px; height: 6px; border-radius: 99px; background: var(--line); overflow: hidden; }
.cov i { display: block; height: 100%; width: 0; background: var(--ok); transition: width .2s; }
.square { fill: var(--line-strong); }
.stylus { stroke: var(--ink); stroke-width: 2; }
.stylus-tip { fill: var(--accent); }
.ind-body { fill: var(--ink); }
.sinebar path { stroke: var(--ink); stroke-width: 6; }
.sinebar circle, .sinebar rect { fill: var(--line-strong); stroke: var(--ink); }
.hz { stroke-width: 1.2; }
.hz.loc { fill: var(--blue-soft); stroke: var(--blue); }
.hz.ori { fill: var(--warn-soft); stroke: var(--warn); }
.hz.form { fill: var(--accent-soft); stroke: var(--accent); }
.drw-hole-cut { fill: var(--surface); stroke: var(--ink); }
.sb-line { stroke: var(--ink); stroke-width: 8; stroke-linecap: round; }
.gauge-block { fill: var(--warn); stroke: var(--ink); }
.setup-box { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; padding: 10px 12px; border: 1px dashed var(--line-strong); border-radius: 10px; margin-bottom: 10px; }
.setup-box .g-field { flex: 1; min-width: 220px; }
.setup-msg { font-size: .88rem; }
.good { color: var(--ok); }
.badc { color: var(--bad); }

/* module 9 */
.hole-ring { fill: var(--surface-2); stroke: var(--ink); stroke-width: 2; }
.pin { fill: var(--blue); opacity: .85; }
.pin.jam { fill: var(--bad); }
.zp-n.dark { fill: var(--ink); font-size: 11px; }
.pos-table td { white-space: nowrap; }

/* module 10 */
.pf-band { fill: var(--ok-soft); stroke: var(--ok); stroke-width: 1; stroke-dasharray: 4 3; }
.pf-nom { fill: none; stroke: var(--ink); stroke-width: 1.4; stroke-dasharray: 6 3; }
.pf-nom.solid { stroke-dasharray: none; }
.pf-dev { stroke: var(--muted); stroke-width: 1; }
.pf-sec { fill: none; stroke: var(--accent); stroke-width: 3; }
.pf-shell { fill: var(--accent-soft); stroke: var(--accent); }
.pf-rib { stroke: var(--line-strong); fill: none; }
.cmap { display: grid; grid-template-columns: repeat(16, 1fr); gap: 2px; margin: 10px 0; }
.cmap i { aspect-ratio: 1.4; border-radius: 3px; }
.cmap i.out { outline: 2px solid var(--ink); outline-offset: -2px; }
.cmap-legend { display: flex; align-items: center; gap: 8px; font-size: .85rem; flex-wrap: wrap; }
.cmap-legend i { width: 160px; height: 10px; border-radius: 99px; background: linear-gradient(90deg, hsl(220,65%,49%), hsl(120,70%,55%), hsl(0,70%,47%)); }

/* module 11 */
.centre { fill: var(--line-strong); stroke: var(--ink); }
.spin { fill: var(--surface-2); stroke: var(--ink); }
.spin-mark { stroke: var(--accent); stroke-width: 3; stroke-linecap: round; }

/* ---------- glossary drawer ---------- */
.scrim { position: fixed; inset: 0; background: rgba(10, 16, 24, .4); z-index: 40; }
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 50; width: min(420px, 100vw);
  background: var(--surface); border-left: 1px solid var(--line); box-shadow: var(--shadow);
  display: flex; flex-direction: column; transform: translateX(100%); transition: transform .25s ease; visibility: hidden;
}
.drawer.open { transform: none; visibility: visible; }
.drawer-head { display: flex; justify-content: space-between; align-items: center; padding: 16px 18px 8px; }
.drawer-head h2 { margin: 0; font-size: 1.2rem; }
.search { margin: 0 18px 10px; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--surface-2); color: var(--ink); font: inherit; }
.drawer-body { overflow-y: auto; padding: 0 18px 24px; }
.gl-group { font: 600 .74rem var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--accent); margin: 16px 0 8px; }
.gl-item { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.gl-icon { display: grid; place-items: center; width: 44px; height: 44px; border: 1.5px solid var(--ink); border-radius: 4px; flex: none; }
.gl-text { font-size: .82rem; font-weight: 600; }
.gl-item h4 { font-size: .95rem; margin: 0 0 2px; }
.gl-item h4 small { font-weight: 400; color: var(--muted); font-size: .76rem; }
.gl-item p { font-size: .85rem; margin: 0 0 2px; color: var(--muted); }
.gl-link { font-size: .78rem; text-decoration: none; }

/* ---------- toasts ---------- */
.toasts { position: fixed; right: 16px; bottom: 16px; z-index: 60; display: grid; gap: 8px; }
.toast {
  display: flex; flex-direction: column; padding: 10px 16px; border-radius: 12px; min-width: 180px;
  background: var(--ink); color: var(--bg); box-shadow: var(--shadow);
  transform: translateY(12px); opacity: 0; transition: transform .3s ease, opacity .3s ease;
}
.toast.in { transform: none; opacity: 1; }
.toast b { font-family: var(--mono); }
.toast span { font-size: .8rem; opacity: .8; }
.toast.level { background: var(--accent); color: #fff; }

/* ---------- responsive ---------- */
@media (max-width: 1000px) {
  .flips { grid-template-columns: repeat(2, 1fr); }
  .plate-grid { grid-template-columns: 1fr; }
  .fit-ctl { grid-template-columns: 1fr 1fr; }
  .fit-ctl .btn { grid-column: 1 / -1; }
  .sim { grid-template-columns: 1fr; }
  .sim-ctl { position: static; }
  .builder .sim-out { order: -1; }
  .kpis { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 820px) {
  .hero, .slide-grid, .slide-grid.wide-right, .bench-top, .brief, .g-grid, .lin-ctl, .fd-ctl { grid-template-columns: 1fr; }
  .notes4, .fit-tasks { grid-template-columns: repeat(2, 1fr); }
  .m4-grid, .cmp-grid, .cell-legend { grid-template-columns: 1fr; }
  .bench-grid { grid-template-columns: 1fr; }
  .det { grid-template-columns: 1fr; }
  .kpis4 { grid-template-columns: repeat(2, 1fr); }
  .rule-grid { grid-template-columns: 1fr; }
  .stepper { grid-template-columns: repeat(2, 1fr); }
  .parts { grid-template-columns: repeat(3, 1fr); }
  .xp-track { width: 70px; }
  .lbl-wide { display: none; }
}
@media (max-width: 560px) {
  .xp-level, .xp-track, .loop-arrow { display: none; }
  .topbar { gap: 10px; }
  .brand span:last-child { font-size: .95rem; }
  .stepper small { display: none; }
  .mod-head { gap: 12px; }
  .mod-num { font-size: 1.6rem; padding: 8px 10px; }
  .pairs { grid-template-columns: repeat(2, 1fr); }
  .forms3, .fit-tasks, .job-tabs { grid-template-columns: 1fr; }
  .dofs { grid-template-columns: repeat(2, 1fr); }
  .cmap { gap: 1px; }
  span.fcf.big .fcf-cell { min-width: 44px; height: 46px; padding: 0 9px; font-size: 1.1rem; }
  .sym-pal { grid-template-columns: repeat(5, 1fr); }
  .cost-info, .cost-pre { grid-template-columns: 1fr 1fr; }
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .fit { grid-template-columns: 120px 1fr; }
  .card { padding: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}