/* svensons.com: one stylesheet for the whole site, mobile-first. */

:root {
  --ink: #1d2430;
  --muted: #586273;
  --bg: #f6f4ef;
  --card: #ffffff;
  --line: #dcd7cc;
  --accent: #0b4f8a;
  --accent-dark: #083a66;
  --accent-ink: #ffffff;
  --link: #0b4f8a;
  --link-visited: #5a3d8a;
  --radius: 8px;
  --gap: 1rem;
  --maxw: 72rem;
  --shadow: 0 1px 3px rgb(0 0 0 / .12);
  color-scheme: light;
}

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

html { -webkit-text-size-adjust: 100%; scroll-padding-top: 4.5rem; }

body {
  margin: 0;
  font: 1rem/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

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

a { color: var(--link); text-underline-offset: .15em; }
a:visited { color: var(--link-visited); }
a:focus-visible, summary:focus-visible { outline: 3px solid #f2a900; outline-offset: 2px; border-radius: 2px; }

h1, h2, h3 { line-height: 1.2; text-wrap: balance; }
h1 { font-size: clamp(1.6rem, 1.2rem + 2vw, 2.4rem); margin: .25em 0 .4em; }
h2 { font-size: clamp(1.25rem, 1.1rem + .8vw, 1.6rem); margin: 1.6em 0 .6em; }

.lead { font-size: 1.125rem; color: var(--muted); max-width: 45rem; }
.hint { color: var(--muted); font-size: .9375rem; max-width: 45rem; }
.count {
  display: inline-block; min-width: 1.6em; padding: 0 .45em;
  font-size: .75em; font-weight: 600; line-height: 1.6; text-align: center;
  color: var(--muted); background: var(--card); border: 1px solid var(--line); border-radius: 999px;
  vertical-align: middle;
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute; left: .5rem; top: -3rem; z-index: 100;
  padding: .5rem 1rem; background: var(--card); color: var(--ink); border-radius: var(--radius);
}
.skip-link:focus { top: .5rem; }

/* ---------- Header and navigation ---------- */
.site-header { background: var(--accent); color: var(--accent-ink); }
.site-header__inner {
  max-width: var(--maxw); margin: 0 auto; padding: .5rem 1rem;
  display: flex; flex-wrap: wrap; align-items: center; gap: .25rem 1.5rem;
}
.brand {
  font: italic 1.75rem/1 Georgia, "Times New Roman", serif;
  color: var(--accent-ink) !important; text-decoration: none; padding: .35rem 0;
}
.site-nav ul { display: flex; flex-wrap: wrap; gap: .25rem; margin: 0; padding: 0; list-style: none; }
.site-nav a {
  display: flex; align-items: center; min-height: 44px; padding: .4rem .85rem;
  color: var(--accent-ink) !important; text-decoration: none; border-radius: var(--radius);
}
.site-nav a:hover { background: rgb(255 255 255 / .15); }
.site-nav a[aria-current="page"] { background: rgb(255 255 255 / .22); font-weight: 600; }

/* Phones: short labels ("Boats", "Planes") so all six links fit on one row. */
.nav-short { display: none; }
@media (max-width: 40rem) {
  .site-header__inner { padding-bottom: .4rem; }
  .site-nav { width: 100%; }
  .site-nav ul { justify-content: space-between; gap: 0; flex-wrap: nowrap; }
  .site-nav a { padding-inline: .4rem; font-size: .9375rem; }
  .nav-long { display: none; }
  .nav-short { display: inline; }
}
@media (max-width: 23rem) {
  .site-nav a { padding-inline: .2rem; font-size: .875rem; }
}

/* ---------- Page body ---------- */
.page { max-width: var(--maxw); margin: 0 auto; padding: 1rem 1rem 3rem; }

.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: .25rem; margin: 0 0 .5rem; padding: 0; list-style: none; font-size: .9375rem; color: var(--muted); }
.breadcrumbs li + li::before { content: "/"; margin-right: .25rem; color: var(--line); }
.breadcrumbs a { color: var(--muted); }

.hero { padding: 1rem 0 .5rem; }
.section-intro { margin-bottom: 1rem; }

/* ---------- Home feature cards ---------- */
.features { display: grid; gap: var(--gap); grid-template-columns: 1fr; margin: 1rem 0 2rem; padding: 0; list-style: none; }
.feature {
  display: flex; gap: 1rem; align-items: center; height: 100%;
  padding: 1rem; background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  color: var(--ink) !important; text-decoration: none; border: 1px solid transparent;
}
.feature:hover { border-color: var(--accent); }
.feature__img { width: 96px; height: 96px; object-fit: contain; flex: none; }
.feature__body { display: grid; gap: .25rem; justify-items: start; }
.feature__title { font-size: 1.25rem; font-weight: 700; color: var(--accent); }
.feature__text { color: var(--muted); }
@media (min-width: 48rem) {
  .features { grid-template-columns: repeat(3, 1fr); }
  .feature { flex-direction: column; align-items: flex-start; }
  .feature__img { width: 100%; height: 160px; }
}

/* ---------- Category menu (boat index) ---------- */
.toc {
  position: sticky; top: 0; z-index: 5;
  margin: 0 -1rem 1rem; padding: .5rem 1rem;
  background: var(--bg); border-bottom: 1px solid var(--line);
}
.toc ul { display: flex; gap: .5rem; margin: 0; padding: 0; list-style: none; overflow-x: auto; scrollbar-width: thin; }
.toc a {
  display: inline-flex; align-items: center; gap: .35rem; min-height: 40px; padding: .3rem .8rem;
  white-space: nowrap; text-decoration: none; color: var(--accent) !important;
  background: var(--card); border: 1px solid var(--accent); border-radius: 999px;
}
.toc a:hover { background: var(--accent); color: var(--accent-ink) !important; }
@media (min-width: 64rem) { .toc ul { flex-wrap: wrap; overflow: visible; } }

.category { padding-top: .25rem; }
.to-top { text-align: right; font-size: .875rem; margin: .5rem 0 0; }

/* ---------- Thumbnail galleries ---------- */
.gallery {
  display: grid; gap: .75rem; margin: 0; padding: 0; list-style: none;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
}
@media (min-width: 48rem) { .gallery { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: var(--gap); } }

.card {
  display: flex; flex-direction: column; align-items: center; gap: .4rem; height: 100%;
  padding: .6rem; background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  color: var(--ink) !important; text-decoration: none; text-align: center; border: 1px solid transparent;
}
.card:hover { border-color: var(--accent); }
.card__img { width: 100%; height: 150px; object-fit: contain; }
.card__img--empty { background: repeating-linear-gradient(45deg, #eee, #eee 6px, #f6f6f6 6px, #f6f6f6 12px); border-radius: 4px; }
.card__title { font-weight: 600; line-height: 1.3; }
.card__note { font-size: .875rem; color: var(--muted); }
.gallery--sheets .card__img { height: 200px; }

/* ---------- Plan and patent pages ---------- */
.plan-header { margin-bottom: 1rem; }
.eyebrow { margin: 0; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; font-size: .875rem; }
.facts { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; margin: 0; }
.facts div { display: flex; gap: .4rem; }
.facts dt { color: var(--muted); }
.facts dt::after { content: ":"; }
.facts dd { margin: 0; font-weight: 600; }

.downloads ul { display: flex; flex-wrap: wrap; gap: .5rem; margin: 0 0 .5rem; padding: 0; list-style: none; }
.downloads h2 { margin-top: 1rem; }

.button {
  display: inline-flex; flex-wrap: wrap; align-items: baseline; gap: .1rem .5rem;
  min-height: 44px; padding: .6rem 1rem;
  background: var(--card); color: var(--accent) !important; border: 1px solid var(--accent); border-radius: var(--radius);
  font-weight: 600; text-decoration: none; word-break: break-word;
}
.button:hover { background: #eef4fa; }
.button--primary { background: var(--accent); color: var(--accent-ink) !important; }
.button--primary:hover { background: var(--accent-dark); }
.button__meta { font-weight: 400; font-size: .875rem; opacity: .85; }

.pager { display: grid; gap: .75rem; margin-top: 2rem; }
.pager a {
  display: grid; padding: .75rem 1rem; background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  text-decoration: none; color: var(--ink) !important;
}
.pager span { font-size: .875rem; color: var(--muted); }
.pager__next { text-align: right; }
@media (min-width: 40rem) { .pager { grid-template-columns: 1fr 1fr; } .pager__next { grid-column: 2; } }

.back-link { margin-top: 2rem; }

.plan-summary { font-size: 1.0625rem; max-width: 45rem; }

.callout {
  margin: 1.25rem 0; padding: .75rem 1rem; max-width: 45rem;
  background: #fff8e1; border-left: 4px solid #f2a900; border-radius: var(--radius);
}
.callout h2 { margin: 0 0 .4rem; font-size: 1.0625rem; }
.callout ul { margin: 0; padding-left: 1.25rem; }

.specs { display: grid; gap: .35rem 1.5rem; margin: 0; max-width: 45rem; grid-template-columns: 1fr; }
.specs div { display: grid; grid-template-columns: 8rem 1fr; gap: 1rem; padding: .35rem 0; border-bottom: 1px solid var(--line); }
.specs dt { color: var(--muted); }
.specs dd { margin: 0; }

.designer-list { display: flex; flex-wrap: wrap; gap: .5rem; padding: 0; list-style: none; }
.designer-list a {
  display: inline-flex; align-items: center; gap: .4rem; min-height: 44px; padding: .4rem .9rem;
  background: var(--card); border: 1px solid var(--line); border-radius: 999px; text-decoration: none;
}
.designer-list a:hover { border-color: var(--accent); }

/* ---------- Document lists and project pages (/other/) ---------- */
.doc-list { list-style: none; padding: 0; margin: 0 0 1.5rem; max-width: 45rem; }
.doc-list li { padding: .75rem 0; border-bottom: 1px solid var(--line); }
.doc-list a { font-weight: 600; }
.doc-list p { margin: .25rem 0 0; color: var(--muted); }
.doc-list__meta { font-size: .8125rem; color: var(--muted); white-space: nowrap; }
.file-list { columns: 16rem; column-gap: 2rem; padding-left: 1.25rem; }
.file-list li { break-inside: avoid; margin: .2rem 0; }

.doc { max-width: 48rem; }
.doc h2 { border-bottom: 1px solid var(--line); padding-bottom: .25rem; }
.doc code, .file-list code { font-size: .9em; background: #ece8df; padding: .05em .3em; border-radius: 4px; }
.doc pre { overflow-x: auto; background: #ece8df; padding: .75rem 1rem; border-radius: var(--radius); }
.doc pre code { background: none; padding: 0; }
.table-wrap { overflow-x: auto; margin: 1rem 0; -webkit-overflow-scrolling: touch; }
@media (max-width: 40rem) { .table-wrap::before { content: "Scroll sideways to see the whole table \2192"; display: block; font-size: .8125rem; color: var(--muted); margin-bottom: .25rem; } }
.doc table { border-collapse: collapse; width: 100%; min-width: 40rem; font-size: .9375rem; background: var(--card); }
.doc th, .doc td { border: 1px solid var(--line); padding: .45rem .6rem; text-align: left; vertical-align: top; }
.doc th { background: #ece8df; }

/* ---------- Recipes ---------- */
.recipe { max-width: 45rem; }
.recipe__ingredients { columns: 15rem; column-gap: 2rem; padding-left: 1.25rem; }
.recipe__ingredients li { break-inside: avoid; margin: .15rem 0; }
.recipe__method p { margin: .4rem 0; }
@media print { .recipe__actions { display: none; } }

/* ---------- Tesla ---------- */
.tesla-intro { display: grid; gap: 1rem; align-items: center; grid-template-columns: 1fr; }
.tesla-intro__img { width: 140px; border-radius: var(--radius); box-shadow: var(--shadow); }
@media (min-width: 40rem) { .tesla-intro { grid-template-columns: auto 1fr; } .tesla-intro__img { width: 180px; } }

.patent-list { margin: 0; padding: 0; list-style: none; background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); }
.patent-list li + li { border-top: 1px solid var(--line); }
.patent-list a {
  display: grid; gap: 0 1rem; padding: .7rem 1rem; text-decoration: none; color: var(--ink) !important;
  grid-template-columns: 1fr; grid-template-areas: "no" "title" "date";
}
.patent-list a:hover { background: #eef4fa; }
.patent-list__no { grid-area: no; font-weight: 700; color: var(--accent); font-variant-numeric: tabular-nums; }
.patent-list__title { grid-area: title; }
.patent-list__date { grid-area: date; font-size: .875rem; color: var(--muted); }
@media (min-width: 48rem) {
  .patent-list a { grid-template-columns: 8rem 1fr 11rem; grid-template-areas: "no title date"; align-items: baseline; }
  .patent-list__date { text-align: right; }
}

/* ---------- Contact ---------- */
.contact { display: grid; gap: 1.5rem; align-items: start; }
.contact__photo { margin: 0; justify-self: start; }
.contact__photo img { border-radius: var(--radius); box-shadow: var(--shadow); }
.contact__photo figcaption { color: var(--muted); font-size: .875rem; margin-top: .4rem; }
@media (min-width: 48rem) { .contact { grid-template-columns: 1fr auto; } }

/* ---------- About boxes and link lists ---------- */
.about {
  margin: 2rem 0; padding: .75rem 1rem; background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
}
.about summary { cursor: pointer; font-weight: 600; min-height: 32px; }
.about p { max-width: 45rem; }

.link-columns { display: grid; gap: 0 2rem; }
@media (min-width: 48rem) { .link-columns { grid-template-columns: 1fr 1fr; } }
.links ul { padding-left: 1.25rem; }
.links li { margin: .35rem 0; }

/* ---------- Ads ---------- */
/* Space is reserved up front so the page doesn't jump when an ad loads. */
.ad { margin: 1.5rem 0; min-height: 280px; text-align: center; }
.ad::before {
  content: "Advertisement"; display: block; margin-bottom: .25rem;
  font-size: .75rem; letter-spacing: .05em; text-transform: uppercase; color: var(--muted);
}
@media (min-width: 48rem) { .ad { min-height: 120px; } }
/* AdSense marks units it couldn't fill; don't leave an empty box behind. */
.ad:has(ins[data-ad-status="unfilled"]) { display: none; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); background: var(--card); color: var(--muted); font-size: .875rem; }
.site-footer__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 1rem;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem 2rem;
}
.site-footer p { margin: 0; }
.site-footer a { color: var(--muted); }

/* ---------- Print: plans are often printed ---------- */
@media print {
  .site-header, .site-footer, .toc, .breadcrumbs, .pager, .back-link, .skip-link, .to-top, .ad { display: none; }
  body { background: #fff; }
  .card, .feature, .about, .patent-list { box-shadow: none; border: 1px solid #ccc; }
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}