/* Base reset */
:root { color-scheme: light; }
body { margin: 0; }
img { max-width: 100%; }
[hidden] { display: none !important; }
/* Layout concept: an engineering drawing sheet. A turned-part drawing opens the page, products read as a parts list, contact is a drawing title block. */
:root {
  --bg: #ECEBE8;
  --surface: #E1DFDB;
  --fg: #2A2827;
  --muted: #5F5B58;
  --line: #B7B3AE;
  --photo: #FFFFFF;
  --accent: #F47B20;
  --on-accent: #2A2827;
  --font-display: "Fira Sans Condensed", "Roboto Condensed", "Arial Narrow", sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", Roboto, Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #2B2928; --surface: #363332; --fg: #EDEBE7; --muted: #AAA5A0; --line: #54504D;
    --accent: #F47B20; --on-accent: #2A2827; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #2B2928; --surface: #363332; --fg: #EDEBE7; --muted: #AAA5A0; --line: #54504D;
  --accent: #F47B20; --on-accent: #2A2827; color-scheme: dark;
}
* { box-sizing: border-box; }
body {
  background: var(--bg); color: var(--fg);
  font-family: var(--font-body); font-size: 16px; line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}
a { color: inherit; }
:focus-visible { outline: 3px solid var(--fg); outline-offset: 2px; }
.wrap {
  max-width: 1120px; margin-inline: auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; margin: 0; text-wrap: balance; line-height: 1.05; }
h2 { font-size: clamp(1.9rem, 4vw, 2.7rem); letter-spacing: -0.005em; }
h3 { font-size: 1.3rem; font-weight: 600; }
p { margin: 0; }
.label {
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted);
}

/* header */
header .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; padding-block: 18px; }
.brand { display: flex; align-items: baseline; gap: 12px; text-decoration: none; }
.brand b { font-family: var(--font-display); font-weight: 700; font-size: 1.9rem; letter-spacing: 0.04em; line-height: 1; }
.brand span { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.brand i { display: inline-block; width: 12px; height: 12px; background: var(--accent); align-self: center; }
nav { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 22px; }
nav a { text-decoration: none; font-weight: 500; font-size: 0.95rem; padding-block: 4px; border-bottom: 2px solid transparent; }
nav a:hover { border-bottom-color: var(--accent); }
.lang { display: inline-flex; border: 1px solid var(--line); }
.lang a { font: 500 0.8rem var(--font-mono); letter-spacing: 0.08em; color: var(--fg); text-decoration: none; padding: 5px 10px; }
.lang a:hover { background: var(--surface); }
.lang a[aria-current="page"] { background: var(--fg); color: var(--bg); }

.wm { display: block; width: 150px; aspect-ratio: 600 / 155; background: var(--fg);
  -webkit-mask: url(images/nikme-wordmark.png) center / contain no-repeat; mask: url(images/nikme-wordmark.png) center / contain no-repeat; }
.brand { align-items: center; }
@media (max-width: 520px) { .brand .sub { display: none; } }

/* catalogue range */
.range { background: var(--surface); border-block: 1px solid var(--line); }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 190px), 1fr)); gap: 20px; }
.card { min-width: 0; display: flex; flex-direction: column; border: 1px solid var(--line); background: var(--bg); }
.card .shot { background: var(--photo); aspect-ratio: 360 / 260; display: flex; }
.card .shot img { width: 100%; height: 100%; object-fit: contain; display: block; }
.card .txt { padding: 14px 16px 18px; display: flex; flex-direction: column; gap: 6px; border-top: 2px solid var(--fg); }
.card h3 { font-size: 1.15rem; }
.card p { color: var(--muted); font-size: 0.92rem; line-height: 1.5; }
.also { margin-top: 28px; max-width: 78ch; color: var(--muted); }
.also b { color: var(--fg); font-weight: 600; }

/* hero */
.hero { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1fr); gap: 40px; padding-block: 56px 64px; align-items: center; }
@media (min-width: 900px) { .hero .wrap { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 56px; } }
.hero h1 { font-size: clamp(2.1rem, 4.6vw, 3.5rem); letter-spacing: -0.012em; line-height: 1.28; margin-top: 16px; }
mark { background: color-mix(in srgb, var(--accent) 38%, transparent); color: inherit; padding: 0 0.12em; -webkit-box-decoration-break: clone; box-decoration-break: clone; }
.lead { margin-top: 22px; max-width: 52ch; font-size: 1.1rem; color: var(--muted); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.btn {
  display: inline-block; text-decoration: none; font-weight: 600; font-size: 0.98rem;
  padding: 13px 22px; border: 2px solid var(--fg);
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn.primary:hover { background: var(--fg); border-color: var(--fg); color: var(--bg); }
.btn.ghost:hover { background: var(--fg); color: var(--bg); }

.sheet { border: 1px solid var(--fg); background: var(--surface); padding: 12px 12px 0; min-width: 0; }
.sheet svg { display: block; width: 100%; height: auto; }
.sheet figcaption { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; border-top: 1px solid var(--fg); margin: 12px -12px 0; padding: 8px 12px; }
.sheet .part { fill: var(--bg); stroke: var(--fg); stroke-width: 1.8; stroke-linejoin: round; }
.sheet .thread { stroke: var(--fg); stroke-width: 1; opacity: 0.55; }
.sheet .center { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 14 4 3 4; }
.sheet .dim { stroke: var(--muted); stroke-width: 1; fill: none; }
.sheet text { fill: var(--fg); font-family: var(--font-mono); font-size: 11.5px; }
.sheet .tol { fill: var(--on-accent); }
.sheet .tolbox { fill: var(--accent); }

/* sections */
section { padding-block: 72px; }
.head { display: flex; flex-direction: column; gap: 10px; margin-bottom: 36px; }

/* parts list */
.parts { border-top: 2px solid var(--fg); }
.row {
  display: grid; grid-template-columns: minmax(0, 1fr); gap: 6px 32px;
  padding-block: 20px; border-bottom: 1px solid var(--line);
}
@media (min-width: 760px) { .row { grid-template-columns: 150px minmax(0, 1.1fr) minmax(0, 1.4fr); align-items: baseline; } }
.tag {
  justify-self: start; font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 3px 9px; background: var(--accent); color: var(--on-accent); font-weight: 500;
}
.row p { color: var(--muted); }
.models { margin-top: 36px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px 10px; }
.models .label { margin-right: 8px; }
.chip { font-family: var(--font-mono); font-size: 0.9rem; border: 1px solid var(--fg); padding: 5px 12px; }

/* history */
.story { background: var(--surface); border-block: 1px solid var(--line); }
.timeline { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0; border-top: 2px solid var(--fg); }
.event { display: grid; grid-template-columns: minmax(0, 1fr); gap: 8px 32px; padding-block: 24px; border-bottom: 1px solid var(--line); }
@media (min-width: 760px) { .event { grid-template-columns: 150px minmax(0, 1fr); } }
.year { font-family: var(--font-display); font-weight: 700; font-size: 2.6rem; line-height: 1; }
.event p { max-width: 62ch; font-size: 1.05rem; }
.values { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 28px; margin-top: 40px; }
.values > div { min-width: 0; border-left: 4px solid var(--accent); padding-left: 16px; }
.values p { margin-top: 6px; color: var(--muted); }

/* catalogue */
.catalogue { background: var(--accent); color: var(--on-accent); padding-block: 48px; }
.catalogue .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px 40px; }
.catalogue h2 { font-size: clamp(1.7rem, 3.4vw, 2.3rem); }
.catalogue p { margin-top: 8px; max-width: 48ch; }
.catalogue .btn { border-color: var(--on-accent); color: var(--on-accent); background: transparent; }
.catalogue .btn:hover { background: var(--on-accent); color: var(--accent); }
.catalogue :focus-visible { outline-color: var(--on-accent); }

/* title block */
.block { border: 2px solid var(--fg); display: grid; grid-template-columns: minmax(0, 1fr); background: var(--surface); }
@media (min-width: 760px) { .block { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.cell { padding: 16px 18px 18px; border-bottom: 1px solid var(--fg); min-width: 0; }
@media (min-width: 760px) { .cell:nth-child(odd) { border-right: 1px solid var(--fg); } .cell.full { grid-column: 1 / -1; border-right: 0; } }
.cell:last-child { border-bottom: 0; }
.cell .label { display: block; margin-bottom: 6px; }
.val { font-size: 1.2rem; font-weight: 500; overflow-wrap: anywhere; }
.val.mono { font-family: var(--font-mono); font-size: 1.1rem; }
.cell .tools { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; margin-top: 10px; }
.cell a.go { font-size: 0.9rem; font-weight: 600; }
.copy {
  font: 500 0.75rem var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; cursor: pointer;
  background: transparent; color: var(--fg); border: 1px solid var(--fg); padding: 4px 10px;
}
.copy:hover { background: var(--fg); color: var(--bg); }


footer { border-top: 1px solid var(--line); padding-block: 24px; color: var(--muted); font-size: 0.88rem; }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; }

@media (prefers-reduced-motion: no-preference) {
  .btn, nav a, .copy { transition: background-color .15s, color .15s, border-color .15s; }
}

/* smartphone layout */
.callbar { display: none; }
@media (max-width: 640px) {
  section { padding-block: 48px; }
  .head { margin-bottom: 24px; }
  .hero .wrap { padding-block: 36px 44px; gap: 28px; }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .card .txt { padding: 10px 12px 14px; }
  .card h3 { font-size: 1rem; }
  .card p { font-size: 0.82rem; }
  .year { font-size: 2.1rem; }
  body { padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px)); }
  .callbar {
    display: flex; gap: 10px; position: fixed; left: 0; right: 0; bottom: 0; z-index: 20;
    background: var(--bg); border-top: 2px solid var(--fg);
    padding: 10px max(16px, env(safe-area-inset-right, 0px)) calc(10px + env(safe-area-inset-bottom, 0px)) max(16px, env(safe-area-inset-left, 0px));
  }
  .callbar a { flex: 1; text-align: center; text-decoration: none; font-weight: 600; padding: 12px 8px; border: 2px solid var(--fg); }
  .callbar a.call { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
}

/* category pages */
nav > a[aria-current="page"] { border-bottom-color: var(--accent); }
.cats { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 24px; }
.cat { display: flex; flex-direction: column; min-width: 0; text-decoration: none; border: 1px solid var(--fg); background: var(--surface); }
.cat:hover { box-shadow: 0 0 0 3px var(--accent); }
.cat .shot { background: var(--photo); aspect-ratio: 360 / 260; display: flex; }
.cat .shot img, .cat .shot svg { width: 100%; height: 100%; object-fit: contain; display: block; }
.cat .txt { flex: 1; display: flex; flex-direction: column; gap: 8px; padding: 18px 20px 22px; border-top: 2px solid var(--fg); }
.cat h3 { font-size: 1.45rem; }
.cat p { color: var(--muted); }
.cat .more { margin-top: auto; padding-top: 10px; font-weight: 600; }
.cat .more::after { content: " \2192"; }
.cat:hover .more { text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: 4px; }
.hero.page h1 { font-size: clamp(2rem, 4.2vw, 3.1rem); }
.hero.solo .wrap { grid-template-columns: minmax(0, 1fr); }
.hero.solo .lead { max-width: 62ch; }
.crumbs { margin: 0; }
.crumbs a { color: var(--muted); }
.hero.page .actions { margin-top: 26px; }
#examples.range { border-block: 1px solid var(--line); }
#constructions .item { border-bottom: 1px solid var(--line); padding-bottom: 8px; }
#constructions .item .row { border-bottom: 0; }
footer .social { display: flex; gap: 14px; align-items: center; }
footer .social a { display: inline-flex; width: 36px; height: 36px; align-items: center; justify-content: center; color: var(--muted); border: 1px solid var(--line); }
footer .social a:hover, footer .social a:focus-visible { color: var(--fg); border-color: var(--accent); }
.sheet.drawing { padding: 0; }
.sheet.drawing figcaption { margin: 0; }
.sheet.drawing .pic { background: var(--photo); display: flex; justify-content: center; padding: 12px 0; }
.sheet.drawing img { width: auto; max-width: 100%; height: auto; max-height: 520px; }
.sheet.drawing .pic { align-items: center; }
.gallery { columns: 2; column-gap: 16px; margin: 4px 0 24px; }
.gallery figure { margin: 0 0 16px; break-inside: avoid; background: var(--photo); border: 1px solid var(--line); }
.gallery img { display: block; width: 100%; height: auto; }
@media (min-width: 800px) { .gallery { columns: 3; } }
@media (min-width: 800px) { #examples .cards { grid-template-columns: repeat(3, minmax(0, 1fr)); } }