/*
  N56 AvCon AB, www.n56avcon.se
  One page, dark night-chart sky like the earlier site: hero text left, chart grid right,
  services in three columns on hairlines, associated company, contact in three columns.
  When this file changes: rename it to the next version (site-v1.2.css) and update the
  links in index.html and error_pages/404/index.html, so browsers do not keep the old one.
*/

@font-face {
  font-family: "Barlow";
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url("../fonts/barlow-latin-300-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Barlow";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/barlow-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Barlow";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/barlow-latin-600-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Barlow";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../fonts/barlow-latin-700-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Barlow Condensed";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/barlow-condensed-latin-500-normal.woff2") format("woff2");
}

:root {
  --sky-top: #2a6d9e;
  --sky-mid: #134467;
  --sky-low: #0a2236;
  --sky-deep: #06121c;
  --line: #44a0dc;
  --amber: #ffc742;
  --text: #eaf3fa;
  --muted: #a9c3d8;
  --font-body: "Barlow", "Segoe UI", Arial, sans-serif;
  --font-label: "Barlow Condensed", "Arial Narrow", Arial, sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text);
  background-color: var(--sky-low);
  background-image: radial-gradient(ellipse 90% 60% at 50% -8%, var(--sky-top) 0%, var(--sky-mid) 42%, var(--sky-low) 78%, var(--sky-deep) 100%);
  background-repeat: no-repeat;
  min-height: 100vh;
}

a { color: var(--amber); text-underline-offset: 0.2em; }
a:hover { color: #fff; }
a:focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; border-radius: 2px; }

.wrap {
  max-width: 68rem;
  margin: 0 auto;
  padding-inline: max(1rem, 4vw);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-top: 3px solid var(--line);
  background: rgba(6, 18, 28, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.9rem;
}
.wordmark {
  color: #fff;
  text-decoration: none;
  font-size: 1.6rem;
  line-height: 1;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.wordmark b { font-weight: 700; }
.wordmark span { font-weight: 300; }
.site-nav { display: flex; gap: 1.5rem; }
.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-family: var(--font-label);
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.site-nav a:hover { color: #fff; }

/* Hero */
.hero .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  align-items: center;
  gap: 2rem;
  padding-block: 4.5rem 3.5rem;
}
.coords {
  margin: 0 0 1rem;
  font-family: var(--font-label);
  font-size: 0.95rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--line);
}
.hero h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -0.01em;
  text-wrap: balance;
}
.hero h1 em { font-style: normal; color: var(--amber); font-weight: 600; }
.hero p { margin: 0 0 1rem; max-width: 34rem; color: var(--text); }
.hero p.quiet { color: var(--muted); }
.hero-art { margin: 0; }
.hero-art img { display: block; width: 100%; height: auto; }

/* Sections */
section { padding-block: 3.5rem; }
.section-head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 2rem;
}
.section-head h2 {
  margin: 0;
  font-size: 2rem;
  font-weight: 300;
  line-height: 1.2;
}
.section-head::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
  opacity: 0.6;
}

/* Services */
.services {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0 2.5rem;
}
.service {
  padding-block: 1.75rem;
  border-top: 1px solid rgba(68, 160, 220, 0.28);
}
.service svg { display: block; width: 3rem; height: 3rem; margin-bottom: 1rem; color: var(--line); }
.service h3 {
  margin: 0 0 0.5rem;
  font-size: 1.3rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--amber);
  text-wrap: balance;
}
.service p { margin: 0 0 0.6rem; color: var(--text); }
/* Small label under a service or the associated company */
.tag {
  display: block;
  font-family: var(--font-label);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

/* Associated company */
.associated {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 0.75rem 2.5rem;
  padding-block: 1.75rem;
  border-top: 1px solid rgba(68, 160, 220, 0.28);
}
.associated h3 {
  margin: 0 0 0.3rem;
  font-size: 1.3rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--amber);
}
.associated p { margin: 0 0 0.6rem; max-width: 40rem; }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.4fr);
  gap: 2rem 3rem;
}
.contact-grid h3 {
  margin: 0 0 0.6rem;
  font-family: var(--font-label);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--line);
}
.contact-grid address { font-style: normal; }
.contact-grid p { margin: 0; }
.details { margin: 0; display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 0.15rem 1rem; }
.details dt { color: var(--amber); }
.details dd { margin: 0; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }

/* Error page */
.error-page .wrap { padding-block: 5rem 6rem; }
.error-page h1 { margin: 0 0 1rem; font-size: clamp(2.2rem, 5vw, 3.2rem); font-weight: 300; line-height: 1.1; }
.error-page p { margin: 0 0 1rem; max-width: 34rem; }

/* Footer */
.site-footer {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.55);
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 2rem;
  padding-block: 1.5rem;
  font-size: 0.95rem;
  color: var(--muted);
}
.site-footer a { color: var(--muted); }

@media (max-width: 56rem) {
  .hero .wrap { grid-template-columns: minmax(0, 1fr); padding-block: 3rem 2rem; }
  .hero-art { max-width: 32rem; }
  .services { grid-template-columns: minmax(0, 1fr); }
  .associated { grid-template-columns: minmax(0, 1fr); }
  .contact-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 26rem) {
  .wordmark { font-size: 1.3rem; }
  .site-nav { gap: 1rem; }
}