/* =============================================================
   CadServAuto — dark technical theme
   Deliberately different from the Maple Tire build: different
   tokens, different class prefixes, different layout system.
   No framework, no external requests.
   ============================================================= */

:root {
  --bg: #0b0e13;
  --bg-2: #111722;
  --bg-3: #18202d;
  --line: #232c3b;
  --line-2: #2f3a4c;
  --ink: #e6ecf5;
  --ink-2: #9aa7ba;
  --ink-3: #6b7789;
  --accent: #1fd1a5;
  --accent-2: #12a684;
  --warn: #ffb020;
  --danger: #ff5c5c;
  --paper: #f4f7fb;

  --ff: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --ff-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --rad: 10px;
  --rad-sm: 6px;
  --wrap: 1240px;
  --gut: 1.5rem;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--ff);
  font-size: 16.5px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 62px;
}
@media (min-width: 880px) { body { padding-bottom: 0; } }

h1, h2, h3, h4 {
  margin: 0 0 .6rem;
  line-height: 1.18;
  font-weight: 650;
  letter-spacing: -.02em;
  color: #fff;
}
h1 { font-size: clamp(2rem, 4.6vw, 3.1rem); letter-spacing: -.03em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.15rem); }
h3 { font-size: clamp(1.1rem, 1.8vw, 1.32rem); }
h4 { font-size: 1rem; }

p { margin: 0 0 1.1rem; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: #4ce3bd; }
img, svg, video { max-width: 100%; height: auto; display: block; }
ul, ol { padding-left: 1.2rem; margin: 0 0 1.1rem; }
li { margin-bottom: .45rem; }
hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }
small { font-size: .84rem; color: var(--ink-3); }
strong { color: #fff; font-weight: 600; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }

.u-skip {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--accent); color: #06231c; padding: .8rem 1.2rem; font-weight: 600;
}
.u-skip:focus { left: .5rem; top: .5rem; }

.u-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gut); }
.wrap--narrow { max-width: 820px; }

.block { padding-block: clamp(3rem, 6vw, 5rem); }
.block--tight { padding-block: clamp(1.75rem, 3.5vw, 2.75rem); }
.block--paper { background: var(--paper); color: #16202e; }
.block--paper h1, .block--paper h2, .block--paper h3 { color: #0b0e13; }
.block--paper a { color: var(--accent-2); }
.block--panel { background: var(--bg-2); }

/* section index label: "01 / DIAGNOSTICS" */
.tag {
  font-family: var(--ff-mono); font-size: .78rem; letter-spacing: .16em;
  text-transform: uppercase; color: var(--accent); margin: 0 0 .9rem;
  display: flex; align-items: center; gap: .7rem;
}
.tag::after { content: ""; flex: 1; height: 1px; background: var(--line-2); }
.block--paper .tag { color: var(--accent-2); }
.block--paper .tag::after { background: #ccd6e2; }

.intro { font-size: 1.12rem; color: var(--ink-2); max-width: 66ch; }
.block--paper .intro { color: #4a5768; }

/* ---------- buttons ---------- */
.act {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 50px; padding: .75rem 1.5rem;
  border: 1px solid transparent; border-radius: var(--rad-sm);
  font: inherit; font-weight: 600; font-size: .98rem; letter-spacing: .01em;
  text-decoration: none; cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
}
.act--fill { background: var(--accent); color: #06231c; }
.act--fill:hover { background: #4ce3bd; color: #06231c; }
.act--line { border-color: var(--line-2); color: var(--ink); background: transparent; }
.act--line:hover { border-color: var(--accent); color: var(--accent); }
.block--paper .act--line { border-color: #b9c5d4; color: #16202e; }
.block--paper .act--line:hover { border-color: var(--accent-2); color: var(--accent-2); }
.act--warn { background: var(--warn); color: #241700; }
.act--warn:hover { background: #ffc247; color: #241700; }
.acts { display: flex; flex-wrap: wrap; gap: .7rem; margin: 1.4rem 0; }

/* ---------- utility bar ---------- */
.util {
  background: #070a0e; border-bottom: 1px solid var(--line);
  font-family: var(--ff-mono); font-size: .8rem; color: var(--ink-3);
}
.util .wrap { display: flex; flex-wrap: wrap; gap: .3rem 1.6rem; align-items: center; padding-block: .5rem; }
.util a { color: var(--ink-2); text-decoration: none; }
.util a:hover { color: var(--accent); }
.util__push { margin-left: auto; }
.live { display: inline-flex; align-items: center; gap: .45rem; }
.live::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--ink-3); }
.live.on { color: var(--accent); } .live.on::before { background: var(--accent); box-shadow: 0 0 0 3px rgb(31 209 165 / .18); }
.live.off { color: var(--danger); } .live.off::before { background: var(--danger); }

/* ---------- masthead ---------- */
.mast { position: sticky; top: 0; z-index: 100; background: rgb(11 14 19 / .94); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.mast__row { display: flex; align-items: center; gap: 1rem; min-height: 72px; }

.brand { display: inline-flex; align-items: center; gap: .6rem; text-decoration: none; color: #fff; }
.brand__glyph { width: 36px; height: 36px; flex: none; }
.brand__name { font-weight: 700; font-size: 1.22rem; letter-spacing: -.02em; }
.brand__name em { font-style: normal; color: var(--accent); }
.brand__sub { display: block; font-family: var(--ff-mono); font-size: .62rem; letter-spacing: .2em; color: var(--ink-3); text-transform: uppercase; }

.menu { margin-left: auto; }
.menu__row { display: flex; align-items: center; gap: .1rem; list-style: none; margin: 0; padding: 0; }
.menu__li { position: relative; }
.menu__a {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .55rem .75rem; border-radius: var(--rad-sm);
  color: var(--ink-2); text-decoration: none; font-size: .96rem; font-weight: 500;
  background: none; border: 0; font-family: inherit; cursor: pointer;
}
.menu__a:hover, .menu__a[aria-current="page"] { color: #fff; background: var(--bg-3); }
.menu__chev { width: 9px; height: 9px; }

.drop {
  position: absolute; top: calc(100% + 8px); left: 0; display: none;
  min-width: 320px; background: var(--bg-2); border: 1px solid var(--line);
  border-radius: var(--rad); padding: .5rem; box-shadow: 0 20px 50px rgb(0 0 0 / .5);
}
.menu__li.open .drop { display: block; }
.drop__a { display: block; padding: .6rem .75rem; border-radius: var(--rad-sm); color: var(--ink); text-decoration: none; }
.drop__a:hover { background: var(--bg-3); color: var(--accent); }
.drop__a span { display: block; font-size: .82rem; color: var(--ink-3); }
.drop__a:hover span { color: var(--ink-2); }

.mast__act { display: none; }
.hamb {
  margin-left: auto; width: 46px; height: 46px; display: grid; place-items: center; gap: 5px;
  background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--rad-sm); cursor: pointer;
}
.hamb i { display: block; width: 20px; height: 2px; background: var(--ink); }

@media (max-width: 1079px) {
  .menu { position: fixed; inset: 72px 0 0; background: var(--bg); overflow-y: auto; padding: 1rem var(--gut) 5rem; display: none; }
  .menu.open { display: block; }
  .menu__row { flex-direction: column; align-items: stretch; gap: 0; }
  .menu__a { width: 100%; justify-content: space-between; padding: .95rem .25rem; border-bottom: 1px solid var(--line); border-radius: 0; }
  .drop { position: static; display: none; min-width: 0; border: 0; box-shadow: none; background: transparent; padding: .35rem 0 .9rem .75rem; }
}
@media (min-width: 1080px) { .hamb { display: none; } .mast__act { display: flex; gap: .5rem; } }

/* ---------- hero ---------- */
.hero { position: relative; border-bottom: 1px solid var(--line); overflow: hidden; }
.hero__grid { display: grid; gap: 2rem; align-items: center; padding-block: clamp(2.5rem, 6vw, 4.5rem); }
@media (min-width: 900px) { .hero__grid { grid-template-columns: 1.05fr .95fr; gap: 3rem; } }
.hero__media { position: relative; border-radius: var(--rad); overflow: hidden; border: 1px solid var(--line); background: var(--bg-2); }
.hero__media img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.hero__stamp {
  position: absolute; left: 0; bottom: 0; background: rgb(11 14 19 / .92);
  border-top: 1px solid var(--line); border-right: 1px solid var(--line);
  padding: .6rem 1rem; font-family: var(--ff-mono); font-size: .76rem; color: var(--ink-2);
  border-top-right-radius: var(--rad-sm);
}
.hero h1 span { color: var(--accent); }
.hero__facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1px; margin-top: 2rem; background: var(--line); border: 1px solid var(--line); border-radius: var(--rad); overflow: hidden; }
.hero__fact { background: var(--bg); padding: 1rem 1.1rem; }
.hero__fact b { display: block; font-family: var(--ff-mono); font-size: 1.4rem; color: var(--accent); font-weight: 600; }
.hero__fact span { font-size: .86rem; color: var(--ink-3); }

/* ---------- alert strip ---------- */
.strip { background: var(--warn); color: #241700; }
.strip .wrap { display: flex; flex-wrap: wrap; gap: .8rem 1.5rem; align-items: center; padding-block: 1rem; }
.strip p { margin: 0; flex: 1 1 28ch; font-size: .98rem; }
.strip strong { color: #241700; }
.strip .act--fill { background: #241700; color: var(--warn); }
.strip .act--fill:hover { background: #3b2800; color: var(--warn); }

/* ---------- crumbs ---------- */
.crumb { border-bottom: 1px solid var(--line); font-family: var(--ff-mono); font-size: .78rem; }
.crumb ol { display: flex; flex-wrap: wrap; gap: .45rem; list-style: none; margin: 0; padding: .8rem 0; }
.crumb li { margin: 0; color: var(--ink-3); }
.crumb li + li::before { content: "/"; margin-right: .45rem; color: var(--line-2); }
.crumb a { color: var(--ink-2); text-decoration: none; }
.crumb a:hover { color: var(--accent); }

/* ---------- layouts ---------- */
.cols { display: grid; gap: 1.5rem; }
.cols--2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.cols--3 { grid-template-columns: repeat(auto-fit, minmax(275px, 1fr)); }
.cols--4 { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.cols--split { grid-template-columns: 1fr; }
@media (min-width: 900px) { .cols--split { grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; } }
.cols--aside { grid-template-columns: 1fr; }
@media (min-width: 1000px) { .cols--aside { grid-template-columns: 1.6fr 1fr; gap: 3rem; align-items: start; } }

/* ---------- panels ---------- */
.pan {
  background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--rad);
  padding: 1.4rem; display: flex; flex-direction: column; gap: .45rem;
}
.pan--link { text-decoration: none; color: inherit; transition: border-color .15s, background .15s; }
.pan--link:hover { border-color: var(--accent); background: var(--bg-3); color: inherit; }
.pan p { color: var(--ink-2); margin: 0; font-size: .96rem; }
.pan h3 { margin: 0; }
.pan__no { font-family: var(--ff-mono); font-size: .76rem; color: var(--ink-3); letter-spacing: .12em; }
.pan__meta { margin-top: auto; padding-top: .9rem; font-family: var(--ff-mono); font-size: .9rem; color: var(--accent); }
.block--paper .pan { background: #fff; border-color: #dbe3ec; }
.block--paper .pan p { color: #556477; }
.block--paper .pan--link:hover { background: #fff; border-color: var(--accent-2); }
.block--paper .pan__meta { color: var(--accent-2); }

/* ---------- symptom list ---------- */
.symp { display: grid; gap: .75rem; list-style: none; padding: 0; margin: 0; }
.symp li { display: grid; grid-template-columns: auto 1fr; gap: .75rem; align-items: start; margin: 0; }
.symp li::before {
  content: ""; width: 8px; height: 8px; margin-top: .62rem; border-radius: 2px;
  background: var(--accent); transform: rotate(45deg);
}
.symp--warn li::before { background: var(--warn); }
.symp--stop li::before { background: var(--danger); }

/* ---------- spec table ---------- */
.tbl-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--rad); }
table { width: 100%; border-collapse: collapse; font-size: .95rem; }
caption { text-align: left; padding: 0 0 .7rem; color: var(--ink-2); font-family: var(--ff-mono); font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; }
th, td { text-align: left; padding: .8rem 1rem; border-bottom: 1px solid var(--line); }
thead th { background: var(--bg-3); font-family: var(--ff-mono); font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); font-weight: 500; }
tbody tr:last-child td { border-bottom: 0; }
td:last-child, th:last-child { text-align: right; white-space: nowrap; }
.num { font-family: var(--ff-mono); color: var(--accent); font-size: 1rem; }
.block--paper .tbl-scroll { border-color: #dbe3ec; }
.block--paper thead th { background: #e8eef5; color: #445266; }
.block--paper th, .block--paper td { border-color: #dbe3ec; }
.block--paper .num { color: var(--accent-2); }

/* ---------- steps ---------- */
.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; display: grid; gap: 1.25rem; }
.steps li { counter-increment: s; display: grid; grid-template-columns: 46px 1fr; gap: 1rem; margin: 0; }
.steps li::before {
  content: counter(s, decimal-leading-zero);
  font-family: var(--ff-mono); font-size: 1rem; color: var(--accent);
  border: 1px solid var(--line-2); border-radius: var(--rad-sm);
  display: grid; place-items: center; height: 46px;
}
.steps h3 { margin-bottom: .2rem; }
.steps p { margin: 0; color: var(--ink-2); }
.block--paper .steps li::before { border-color: #c6d1de; color: var(--accent-2); }
.block--paper .steps p { color: #556477; }

/* ---------- accordion ---------- */
.qa details { border: 1px solid var(--line); border-radius: var(--rad); margin-bottom: .7rem; background: var(--bg-2); }
.qa summary { cursor: pointer; list-style: none; padding: 1rem 3rem 1rem 1.2rem; position: relative; font-weight: 600; color: #fff; }
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after {
  content: ""; position: absolute; right: 1.2rem; top: 50%; width: 10px; height: 10px;
  border-right: 2px solid var(--accent); border-bottom: 2px solid var(--accent);
  transform: translateY(-70%) rotate(45deg); transition: transform .15s;
}
.qa details[open] summary::after { transform: translateY(-30%) rotate(225deg); }
.qa details > div { padding: 0 1.2rem 1.1rem; color: var(--ink-2); max-width: 80ch; }
.block--paper .qa details { background: #fff; border-color: #dbe3ec; }
.block--paper .qa summary { color: #0b0e13; }
.block--paper .qa details > div { color: #556477; }

/* ---------- gallery ---------- */
.shots { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1rem; }
.shots figure { margin: 0; }
.shots img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; border-radius: var(--rad); border: 1px solid var(--line); background: var(--bg-2); }
.shots figcaption { font-family: var(--ff-mono); font-size: .76rem; color: var(--ink-3); padding-top: .5rem; }
.shots--wide img { aspect-ratio: 4 / 3; }

/* ---------- forms ---------- */
.form { display: grid; gap: 1rem; }
.fld { display: grid; gap: .35rem; }
.fld label { font-size: .9rem; font-weight: 500; color: var(--ink); }
.fld .star { color: var(--accent); }
input, select, textarea {
  font: inherit; font-size: .98rem; padding: .75rem .85rem; min-height: 50px;
  background: var(--bg); color: var(--ink);
  border: 1px solid var(--line-2); border-radius: var(--rad-sm); width: 100%;
}
textarea { min-height: 130px; resize: vertical; }
input::placeholder, textarea::placeholder { color: var(--ink-3); }
input:focus, select:focus, textarea:focus { border-color: var(--accent); outline-offset: 1px; }
.fld--tick { grid-template-columns: auto 1fr; align-items: start; gap: .65rem; }
.fld--tick input { width: 20px; height: 20px; min-height: 20px; margin-top: .35rem; accent-color: var(--accent); }
.fld--tick label { font-size: .87rem; color: var(--ink-2); font-weight: 400; }
.trap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form__fine { font-size: .82rem; color: var(--ink-3); margin: 0; }
.formbox { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--rad); padding: 1.6rem; }
.block--paper .formbox { background: #fff; border-color: #dbe3ec; }
.block--paper .fld label { color: #16202e; }
.block--paper input, .block--paper select, .block--paper textarea { background: #fff; color: #16202e; border-color: #c6d1de; }
.block--paper .fld--tick label, .block--paper .form__fine { color: #667385; }

/* ---------- triage widget ---------- */
.triage { border: 1px solid var(--line); border-radius: var(--rad); background: var(--bg-2); padding: clamp(1.25rem, 3vw, 1.9rem); }
.triage__bar { display: flex; gap: .35rem; margin-bottom: 1.3rem; }
.triage__seg { flex: 1; height: 4px; background: var(--line); border-radius: 2px; }
.triage__seg.on { background: var(--accent); }
.triage__q { display: none; }
.triage__q.on { display: block; }
.triage__opts { display: grid; gap: .6rem; margin: 1.1rem 0; }
.triage__opt {
  display: flex; align-items: center; gap: .8rem; text-align: left;
  background: var(--bg); border: 1px solid var(--line-2); border-radius: var(--rad-sm);
  padding: .85rem 1rem; min-height: 50px; font: inherit; color: var(--ink); cursor: pointer;
}
.triage__opt:hover { border-color: var(--accent); }
.triage__opt.picked { border-color: var(--accent); background: rgb(31 209 165 / .09); }
.triage__opt code { font-family: var(--ff-mono); font-size: .8rem; color: var(--ink-3); }
.triage__back { background: none; border: 0; color: var(--ink-3); font: inherit; font-size: .88rem; cursor: pointer; text-decoration: underline; padding: .4rem 0; }

/* ---------- callouts ---------- */
.note { border-left: 3px solid var(--accent); background: var(--bg-2); padding: 1rem 1.2rem; border-radius: 0 var(--rad-sm) var(--rad-sm) 0; font-size: .96rem; }
.note--warn { border-left-color: var(--warn); }
.note--law { border-left-color: var(--ink-3); }
.note p:last-child { margin-bottom: 0; }
.block--paper .note { background: #eaf1f8; }

/* ---------- map ---------- */
.mapbox { border: 1px solid var(--line); border-radius: var(--rad); background: var(--bg-2); min-height: 340px; display: grid; place-items: center; text-align: center; padding: 2rem; }
.mapbox iframe { width: 100%; min-height: 340px; border: 0; border-radius: var(--rad); }

/* ---------- article ---------- */
.doc { max-width: 76ch; }
.doc h2 { margin-top: 2.2rem; }
.doc h3 { margin-top: 1.6rem; }
.doc__meta { font-family: var(--ff-mono); font-size: .8rem; color: var(--ink-3); margin-bottom: 1.6rem; }

/* ---------- footer ---------- */
.foot { background: #070a0e; border-top: 1px solid var(--line); padding-block: 3.5rem 1.5rem; font-size: .94rem; color: var(--ink-2); }
.foot h2, .foot h3 { font-size: 1rem; color: #fff; margin-bottom: .8rem; }
.foot a { color: var(--ink-2); text-decoration: none; }
.foot a:hover { color: var(--accent); }
.foot__grid { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.foot ul { list-style: none; padding: 0; margin: 0; }
.foot li { margin-bottom: .4rem; }
.foot__end { margin-top: 2.5rem; padding-top: 1.2rem; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; font-family: var(--ff-mono); font-size: .78rem; color: var(--ink-3); }
.foot__end .util__push { margin-left: auto; }

/* ---------- mobile dock ---------- */
.dock {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 120;
  display: grid; grid-template-columns: repeat(3, 1fr);
  background: var(--bg-2); border-top: 1px solid var(--accent);
}
.dock a {
  display: grid; place-items: center; min-height: 58px; padding: .5rem .3rem;
  color: var(--ink); text-decoration: none; font-size: .88rem; font-weight: 500;
  border-right: 1px solid var(--line);
}
.dock a:last-child { border-right: 0; }
.dock a:hover { color: var(--accent); }
@media (min-width: 880px) { .dock { display: none; } }

/* ---------- consent ---------- */
.consent {
  position: fixed; z-index: 140; left: 1rem; right: 1rem; bottom: 74px;
  max-width: 540px; background: var(--bg-2); border: 1px solid var(--line-2);
  border-radius: var(--rad); padding: 1.3rem; display: none; box-shadow: 0 24px 60px rgb(0 0 0 / .6);
}
.consent.show { display: block; }
.consent p { font-size: .92rem; color: var(--ink-2); }
.consent .act { min-height: 44px; padding: .55rem 1.1rem; font-size: .92rem; }
@media (min-width: 880px) { .consent { bottom: 1.25rem; left: 1.25rem; right: auto; } }

@media print {
  .util, .mast, .dock, .consent, .foot, .act { display: none !important; }
  body { background: #fff; color: #000; padding: 0; }
}