/* ===========================================================================
   Total Tuning
   Richting: werkplaats / spec-sheet. Asfaltdonker, staalgrijs, signaaloranje.
   Display: Saira Condensed. Body: IBM Plex Sans. Labels/data: IBM Plex Mono.
   =========================================================================== */

:root {
  --asphalt: #101216;
  --asphalt-2: #15181d;
  --panel: #1b1f26;
  --panel-2: #20252d;
  --line: #2a313b;
  --steel: #8c96a3;
  --steel-light: #b6bfca;
  --paper: #f2f1ec;
  --paper-dim: #d9dade;
  --signal: #ff5a1f;
  --signal-deep: #e0440d;

  --maxw: 1120px;
  --gap: clamp(1.25rem, 3vw, 2.5rem);

  --font-display: "Saira Condensed", "Arial Narrow", sans-serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--asphalt);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: var(--paper); text-decoration: none; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gap); }

.skip {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--signal); color: #111; padding: .6rem 1rem; font-weight: 600;
}
.skip:focus { left: 1rem; top: 1rem; }

/* --- Koppen ---------------------------------------------------------------- */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: .01em;
  margin: 0 0 .5em;
  text-transform: uppercase;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0 0 1rem;
  display: inline-flex;
  align-items: center;
  gap: .6rem;
}
.eyebrow::before {
  content: ""; width: 26px; height: 2px; background: var(--signal);
}

/* --- Header ---------------------------------------------------------------- */

.site-head {
  position: sticky; top: 0; z-index: 50;
  background: rgba(16,18,22,.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.head-inner {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 68px;
}
.brand {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--font-display); font-weight: 800; font-size: 1.4rem;
  text-transform: uppercase; letter-spacing: .02em; color: var(--paper);
}
.brand-mark { color: var(--signal); display: inline-flex; }
.brand-dash { color: var(--signal); }

.site-nav ul {
  list-style: none; margin: 0; padding: 0;
  display: flex; gap: .35rem; align-items: center;
}
.site-nav a {
  display: inline-block; padding: .55rem .85rem;
  font-family: var(--font-mono); font-size: .8rem; font-weight: 500;
  letter-spacing: .06em; text-transform: uppercase; color: var(--steel-light);
  border: 1px solid transparent; border-radius: 2px;
}
.site-nav a:hover { color: var(--paper); }
.site-nav a[aria-current="page"] {
  color: var(--paper); border-color: var(--line); background: var(--panel);
}

.navtoggle, .navbtn { display: none; }

/* --- Hero ------------------------------------------------------------------ */

.hero {
  position: relative; overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 80% -10%, rgba(255,90,31,.10), transparent 55%),
    var(--asphalt);
}
.hero::after {
  /* asfalt-perspectieflijn als subtiel motief */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(120% 80% at 50% 120%, #000, transparent 70%);
          mask-image: radial-gradient(120% 80% at 50% 120%, #000, transparent 70%);
  opacity: .35;
}
.hero-inner { position: relative; z-index: 1; padding: clamp(3.5rem, 9vw, 7rem) 0 clamp(3rem, 7vw, 5.5rem); max-width: 880px; }
.hero h1 {
  font-size: clamp(2.8rem, 8.5vw, 6rem); font-weight: 800;
  margin: 0 0 1.25rem; letter-spacing: 0;
}
.hero h1 .accent { color: var(--signal); }
.hero-lead {
  font-size: clamp(1.05rem, 2.2vw, 1.3rem); color: var(--paper-dim);
  max-width: 60ch; margin: 0 0 2rem; line-height: 1.6;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; }

/* spec-strip: het signatuurelement, een data-balk in monospace */
.specstrip {
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  background: var(--asphalt-2);
}
.specstrip ul {
  list-style: none; margin: 0 auto; padding: 0; max-width: var(--maxw);
  display: grid; grid-template-columns: repeat(4, 1fr);
}
.specstrip li {
  padding: 1rem var(--gap); border-left: 1px solid var(--line);
  font-family: var(--font-mono); font-size: .78rem; letter-spacing: .04em;
  color: var(--steel);
}
.specstrip li:first-child { border-left: none; }
.specstrip li b {
  display: block; color: var(--paper); font-weight: 600;
  font-size: .95rem; letter-spacing: .02em; margin-top: .15rem;
}

/* --- Knoppen --------------------------------------------------------------- */

.btn {
  display: inline-flex; align-items: center; gap: .55rem;
  font-family: var(--font-mono); font-size: .82rem; font-weight: 600;
  letter-spacing: .06em; text-transform: uppercase;
  padding: .8rem 1.4rem; border-radius: 2px; border: 1px solid var(--line);
  transition: transform .12s ease, background .15s ease, border-color .15s ease;
}
.btn-primary { background: var(--signal); color: #14110d; border-color: var(--signal); }
.btn-primary:hover { background: var(--signal-deep); border-color: var(--signal-deep); }
.btn-ghost { color: var(--paper); }
.btn-ghost:hover { border-color: var(--steel); background: var(--panel); }
.btn:active { transform: translateY(1px); }
.btn .arr { transition: transform .15s ease; }
.btn:hover .arr { transform: translateX(3px); }

/* --- Secties --------------------------------------------------------------- */

.section { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.section-head { margin-bottom: 2.5rem; max-width: 70ch; }
.section-head h2 { font-size: clamp(1.9rem, 4.5vw, 3rem); }
.section-head p { color: var(--paper-dim); margin: .4rem 0 0; }
.section--alt { background: var(--asphalt-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.head-row {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap; margin-bottom: 2.25rem;
}
.head-row h2 { font-size: clamp(1.9rem, 4.5vw, 2.8rem); margin: 0; }
.head-row .more {
  font-family: var(--font-mono); font-size: .82rem; letter-spacing: .05em;
  text-transform: uppercase; color: var(--signal); white-space: nowrap;
}
.head-row .more:hover { color: var(--paper); }

/* --- Artikelkaarten -------------------------------------------------------- */

.cards { display: grid; gap: 1.25rem; grid-template-columns: repeat(3, 1fr); }
.cards--two { grid-template-columns: repeat(2, 1fr); }

.card {
  display: flex; flex-direction: column;
  background: var(--panel); border: 1px solid var(--line); border-radius: 3px;
  overflow: hidden; transition: transform .14s ease, border-color .14s ease;
}
.card:hover { transform: translateY(-3px); border-color: #3a434f; }
.card-top {
  display: flex; align-items: center; justify-content: space-between;
  padding: .7rem 1.1rem; border-bottom: 1px solid var(--line);
  background: var(--panel-2);
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .08em;
  text-transform: uppercase; color: var(--steel);
}
.card-cat { color: var(--signal); }
.card-body { padding: 1.1rem 1.1rem 1.3rem; display: flex; flex-direction: column; flex: 1; }
.card h3 {
  font-size: 1.5rem; line-height: 1.05; margin: 0 0 .6rem;
  text-transform: none; letter-spacing: .005em;
}
.card h3 a { color: var(--paper); }
.card:hover h3 a { color: var(--signal); }
.card p { margin: 0 0 1.1rem; color: var(--paper-dim); font-size: .96rem; flex: 1; }
.card-foot {
  font-family: var(--font-mono); font-size: .74rem; letter-spacing: .04em;
  color: var(--steel); display: flex; gap: .6rem; align-items: center;
}

/* --- Onderwerpenraster ----------------------------------------------------- */

.topics { display: grid; gap: 1rem; grid-template-columns: repeat(5, 1fr); }
.topic {
  display: block; padding: 1.4rem 1.1rem; border: 1px solid var(--line);
  border-radius: 3px; background: var(--panel);
  transition: border-color .14s ease, background .14s ease;
}
.topic:hover { border-color: var(--signal); background: var(--panel-2); }
.topic .num {
  font-family: var(--font-mono); font-size: .72rem; color: var(--steel);
  letter-spacing: .08em;
}
.topic .name {
  font-family: var(--font-display); font-weight: 700; text-transform: uppercase;
  font-size: 1.5rem; line-height: 1; margin-top: .5rem; color: var(--paper);
}

/* --- Onderdelen-blok (subtiele shopverwijzing) ----------------------------- */

.shops { display: grid; gap: 1.25rem; grid-template-columns: repeat(2, 1fr); margin-top: 2rem; }
.shop {
  border: 1px solid var(--line); border-radius: 3px; background: var(--panel);
  padding: 1.6rem 1.5rem;
}
.shop h3 { font-size: 1.6rem; text-transform: none; margin-bottom: .4rem; }
.shop p { color: var(--paper-dim); margin: 0 0 1.1rem; font-size: .96rem; }
.shop .shoplink {
  font-family: var(--font-mono); font-size: .82rem; letter-spacing: .05em;
  text-transform: uppercase; color: var(--signal);
  display: inline-flex; align-items: center; gap: .45rem;
}
.shop .shoplink:hover { color: var(--paper); }

/* --- Algemene tekstinhoud (prose) ------------------------------------------ */

.prose { max-width: 72ch; }
.prose p, .prose ul, .prose ol { color: var(--paper-dim); }
.prose p { margin: 0 0 1.2rem; }
.prose h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem); margin: 2.4rem 0 .9rem;
  text-transform: none; letter-spacing: .005em; color: var(--paper);
}
.prose h3 {
  font-size: 1.4rem; margin: 1.9rem 0 .6rem; text-transform: none; color: var(--paper);
}
.prose a { color: var(--signal); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.prose a:hover { color: var(--paper); }
.prose ul, .prose ol { margin: 0 0 1.3rem; padding-left: 1.3rem; }
.prose li { margin: .35rem 0; }
.prose strong { color: var(--paper); font-weight: 600; }
.prose blockquote {
  margin: 1.6rem 0; padding: .2rem 0 .2rem 1.4rem;
  border-left: 3px solid var(--signal); color: var(--paper);
  font-size: 1.1rem;
}
.prose table {
  width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: .95rem;
}
.prose th, .prose td { border: 1px solid var(--line); padding: .7rem .9rem; text-align: left; }
.prose th { background: var(--panel-2); font-family: var(--font-mono); font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--paper); }

/* --- Artikelpagina --------------------------------------------------------- */

.article-head {
  border-bottom: 1px solid var(--line); background: var(--asphalt-2);
  padding: clamp(2.5rem, 6vw, 4.5rem) 0 clamp(2rem, 4vw, 3rem);
}
.article-meta {
  font-family: var(--font-mono); font-size: .78rem; letter-spacing: .06em;
  text-transform: uppercase; color: var(--steel);
  display: flex; flex-wrap: wrap; gap: .5rem 1rem; margin-top: 1.2rem;
}
.article-meta .cat { color: var(--signal); }
.article-head h1 { font-size: clamp(2.2rem, 6vw, 4rem); text-transform: none; letter-spacing: .005em; max-width: 22ch; }
.article-body { padding: clamp(2.5rem, 6vw, 4rem) 0; }

.backlink {
  font-family: var(--font-mono); font-size: .78rem; letter-spacing: .05em;
  text-transform: uppercase; color: var(--steel); display: inline-block; margin-bottom: 1.2rem;
}
.backlink:hover { color: var(--signal); }

.callout {
  margin: 2rem 0; border: 1px solid var(--line); border-left: 3px solid var(--signal);
  border-radius: 3px; background: var(--panel); padding: 1.3rem 1.5rem;
}
.callout .lbl {
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--signal); display: block; margin-bottom: .35rem;
}
.callout p { margin: 0; color: var(--paper-dim); }
.callout a { color: var(--signal); text-decoration: underline; text-underline-offset: 3px; }
.callout a:hover { color: var(--paper); }

/* --- Generieke pagina ------------------------------------------------------ */

.page-head { border-bottom: 1px solid var(--line); padding: clamp(2.5rem, 6vw, 4.5rem) 0 clamp(1.6rem, 3vw, 2.5rem); }
.page-head h1 { font-size: clamp(2.4rem, 6vw, 4rem); text-transform: none; letter-spacing: .005em; }
.page-body { padding: clamp(2.5rem, 6vw, 4rem) 0; }

/* --- Contact / mailblok ---------------------------------------------------- */

.mailcard {
  border: 1px solid var(--line); border-radius: 3px; background: var(--panel);
  padding: 2rem; margin: 1.5rem 0; max-width: 46ch;
}
.mailcard .lbl { font-family: var(--font-mono); font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; color: var(--steel); }
.mailcard .addr {
  font-family: var(--font-display); font-weight: 700; font-size: clamp(1.4rem, 4vw, 2rem);
  margin: .4rem 0 1.2rem; word-break: break-word;
}
.mailcard .addr a { color: var(--paper); }
.mailcard .addr a:hover { color: var(--signal); }

/* --- Footer ---------------------------------------------------------------- */

.site-foot { border-top: 1px solid var(--line); background: var(--asphalt-2); margin-top: 2rem; }
.foot-grid {
  display: grid; gap: 2rem; grid-template-columns: 1.6fr 1fr 1fr 1fr;
  padding: clamp(2.5rem, 5vw, 3.5rem) var(--gap);
}
.foot-name { font-family: var(--font-display); font-weight: 800; font-size: 1.4rem; text-transform: uppercase; color: var(--paper); }
.foot-tag { color: var(--steel); font-size: .92rem; margin: .6rem 0 0; max-width: 38ch; }
.foot-col h2 { font-family: var(--font-mono); font-size: .74rem; letter-spacing: .12em; color: var(--steel); text-transform: uppercase; margin: 0 0 .9rem; font-weight: 600; }
.foot-col ul { list-style: none; margin: 0; padding: 0; }
.foot-col li { margin: .4rem 0; }
.foot-col a { color: var(--paper-dim); font-size: .95rem; }
.foot-col a:hover { color: var(--signal); }
.foot-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  border-top: 1px solid var(--line); padding: 1.1rem var(--gap);
  font-family: var(--font-mono); font-size: .76rem; letter-spacing: .04em; color: var(--steel);
}
.foot-legal { list-style: none; display: flex; gap: 1.2rem; margin: 0; padding: 0; flex-wrap: wrap; }
.foot-legal a { color: var(--steel); }
.foot-legal a:hover { color: var(--signal); }

/* --- Focus / toegankelijkheid ---------------------------------------------- */

a:focus-visible, .btn:focus-visible, .topic:focus-visible, summary:focus-visible {
  outline: 2px solid var(--signal); outline-offset: 3px;
}

/* --- Responsief ------------------------------------------------------------ */

@media (max-width: 880px) {
  .cards, .cards--two { grid-template-columns: 1fr 1fr; }
  .topics { grid-template-columns: 1fr 1fr 1fr; }
  .shops { grid-template-columns: 1fr; }
  .specstrip ul { grid-template-columns: 1fr 1fr; }
  .specstrip li:nth-child(3) { border-left: none; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .navbtn {
    display: inline-flex; flex-direction: column; gap: 5px; cursor: pointer;
    padding: .5rem; background: none; border: 1px solid var(--line); border-radius: 2px;
  }
  .navbtn span { width: 22px; height: 2px; background: var(--paper); display: block; transition: .2s; }
  .site-nav {
    position: absolute; left: 0; right: 0; top: 100%;
    background: var(--asphalt); border-bottom: 1px solid var(--line);
    max-height: 0; overflow: hidden; transition: max-height .25s ease;
  }
  .navtoggle:checked ~ .site-nav { max-height: 360px; }
  .navtoggle:checked ~ .navbtn span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .navtoggle:checked ~ .navbtn span:nth-child(2) { opacity: 0; }
  .navtoggle:checked ~ .navbtn span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .site-nav ul { flex-direction: column; align-items: stretch; gap: 0; padding: .5rem var(--gap) 1rem; }
  .site-nav a { display: block; padding: .8rem 0; font-size: .9rem; }
  .head-inner { flex-wrap: wrap; }

  .cards, .cards--two, .topics { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
  .specstrip ul { grid-template-columns: 1fr; }
  .specstrip li, .specstrip li:nth-child(3) { border-left: none; border-top: 1px solid var(--line); }
  .specstrip li:first-child { border-top: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}