/* ============================================================
   GAM Arkitekter — stylesheet
   Palette: white / mist grey, ink text, steel-blue accent (from logo)
   Fonts: Prata (display serif) + Jost (geometric sans, matches logo)
   ============================================================ */

:root {
  --accent: #2e617c;
  --accent-dark: #234b60;
  --dark: #14181d;
  --ink: #232a31;
  --muted: #5d6770;
  --paper: #ffffff;
  --mist: #f4f5f2;
  --line: #e4e6e3;
  --serif: 'Prata', 'Georgia', serif;
  --sans: 'Jost', 'Segoe UI', system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

/* Myk overgang mellom sider. Støttes av Chrome, Edge og Safari;
   andre nettlesere ignorerer det og oppfører seg som før. */
@view-transition { navigation: auto; }
::view-transition-old(root), ::view-transition-new(root) { animation-duration: 180ms; }

@media (prefers-reduced-motion: reduce) {
  @view-transition { navigation: none; }
  html { scroll-behavior: auto; }
  .fade { opacity: 1 !important; transform: none !important; transition: none !important; }
}

body {
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
}

img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-dark); }

h1, h2, h3 { font-family: var(--serif); font-weight: 400; line-height: 1.2; color: var(--dark); }
h1 { font-size: clamp(2rem, 4.5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: 1.25rem; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.kicker {
  font-size: .8rem; letter-spacing: .22em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 14px; font-weight: 500;
}

.rule { width: 46px; height: 2px; background: var(--accent); border: 0; margin: 22px 0; }
.rule.center { margin: 22px auto; }

.btn {
  display: inline-block; padding: 15px 36px; background: var(--dark); color: #fff;
  font-family: var(--sans); font-size: .8rem; letter-spacing: .2em; text-transform: uppercase;
  border: 1px solid var(--dark); cursor: pointer; transition: all .25s ease;
}
.btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.ghost { background: transparent; color: var(--dark); }
.btn.ghost:hover { background: var(--dark); color: #fff; }

/* ---------- top bar ---------- */
.topbar {
  background: var(--dark); color: #cfd6db; font-size: .85rem;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; min-height: 38px; }
.topbar a { color: #fff; }
.topbar .contacts { display: flex; gap: 18px; flex-wrap: wrap; }
.lang-switch { display: flex; gap: 2px; }
.lang-switch button {
  background: none; border: 0; color: #9aa6ae; font-family: var(--sans); font-size: .8rem;
  letter-spacing: .08em; cursor: pointer; padding: 4px 7px;
}
.lang-switch button.active, .lang-switch button:hover { color: #fff; }
.lang-switch button.active { border-bottom: 2px solid var(--accent); }

/* ---------- header / nav ---------- */
/* Reserverer plassen headeren får når JS har tegnet den, slik at innholdet
   ikke hopper nedover idet toppfeltet dukker opp. Målt: 123px / 150px mobil. */
#site-header { min-height: 123px; }

header.site {
  position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.97);
  border-bottom: 1px solid var(--line);
  /* NB: ingen backdrop-filter her - det bryter position:fixed for mobilmenyen */
}
header.site .container { display: flex; align-items: center; justify-content: space-between; min-height: 84px; }
.logo img { height: 52px; width: auto; }
nav.main { display: flex; gap: 34px; align-items: center; }
nav.main a {
  color: var(--ink); font-size: .95rem; letter-spacing: .04em; position: relative; padding: 6px 0;
}
nav.main a::after {
  content: ''; position: absolute; left: 0; bottom: 0; width: 0; height: 2px;
  background: var(--accent); transition: width .25s ease;
}
nav.main a:hover::after, nav.main a.active::after { width: 100%; }
nav.main a.active { color: var(--accent); }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 26px; height: 2px; background: var(--dark); margin: 6px 0; transition: .25s; }

/* ---------- hero ---------- */
.hero { display: grid; grid-template-columns: 1fr 1fr; min-height: 78vh; }
.hero .visual { background-size: cover; background-position: center; min-height: 380px; }
.hero .pitch { display: flex; flex-direction: column; justify-content: center; padding: 70px 8vw 70px 70px; background: var(--paper); }
.hero .pitch p { color: var(--muted); font-size: 1.1rem; max-width: 34em; margin-bottom: 34px; }

/* ---------- sections ---------- */
section.block { padding: 96px 0; }
section.block.alt { background: var(--mist); }
.section-head { max-width: 640px; margin: 0 auto 60px; text-align: center; }
.section-head p { color: var(--muted); margin-top: 16px; }

/* welcome split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.split .text p { color: var(--muted); margin-bottom: 16px; }
.split .imgwrap { position: relative; }
.split .imgwrap img { width: 100%; height: 460px; object-fit: cover; }
.split .imgwrap::after {
  content: ''; position: absolute; inset: 18px -18px -18px 18px; border: 1px solid var(--accent);
  z-index: -1;
}

/* services */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.cards.cols-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--paper); border: 1px solid var(--line); padding: 40px 28px;
  text-align: center; transition: transform .25s ease, box-shadow .25s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: 0 18px 40px rgba(20,24,29,.09); }
.card .icon { width: 54px; height: 54px; margin: 0 auto 20px; color: var(--accent); }
.card .icon svg { width: 100%; height: 100%; }
.card h3 { margin-bottom: 12px; }
.card p { color: var(--muted); font-size: .95rem; }
.card a.more { display: inline-block; margin-top: 16px; font-size: .8rem; letter-spacing: .18em; text-transform: uppercase; }

/* projects grid */
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.project-card { position: relative; overflow: hidden; cursor: pointer; background: var(--dark); }
.project-card img { width: 100%; aspect-ratio: 16/10; object-fit: cover; transition: transform .5s ease, opacity .4s; }
.project-card:hover img { transform: scale(1.05); opacity: .55; }
.project-card .meta {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 40px 22px 18px; color: #fff;
  background: linear-gradient(transparent, rgba(10,14,18,.85));
}
.project-card .meta h3 { color: #fff; font-size: 1.05rem; }
.project-card .meta span { font-size: .82rem; color: #c3ccd3; letter-spacing: .06em; }
.project-card .zoom-hint {
  position: absolute; top: 14px; right: 14px; width: 38px; height: 38px; border-radius: 50%;
  background: rgba(255,255,255,.92); color: var(--dark); display: grid; place-items: center;
  opacity: 0; transition: opacity .3s;
}
.project-card:hover .zoom-hint { opacity: 1; }

/* lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 200; background: rgba(10,13,16,.94);
  display: none; flex-direction: column;
}
.lightbox.open { display: flex; }
.lightbox .lb-bar {
  display: flex; justify-content: space-between; align-items: center; padding: 14px 22px; color: #fff;
  flex: 0 0 auto;
}
.lightbox .lb-bar .lb-title { font-size: .95rem; letter-spacing: .05em; }
.lightbox .lb-actions { display: flex; gap: 8px; }
.lightbox .lb-actions button, .lightbox .lb-actions a {
  background: rgba(255,255,255,.12); color: #fff; border: 0; width: 40px; height: 40px;
  display: grid; place-items: center; cursor: pointer; font-size: 1.1rem; border-radius: 4px;
}
.lightbox .lb-actions button:hover, .lightbox .lb-actions a:hover { background: var(--accent); }
.lightbox .lb-viewport { flex: 1; overflow: auto; text-align: center; }
.lightbox .lb-viewport img { display: inline-block; max-width: 96%; margin: 0 auto 30px; transition: max-width .2s; }
.lightbox .lb-viewport.zoomed img { max-width: none; width: 2400px; cursor: grab; }
.lightbox .lb-nav {
  position: absolute; top: 50%; transform: translateY(-50%); background: rgba(255,255,255,.12);
  color: #fff; border: 0; width: 46px; height: 66px; font-size: 1.5rem; cursor: pointer;
}
.lightbox .lb-nav:hover { background: var(--accent); }
.lightbox .lb-prev { left: 0; } .lightbox .lb-next { right: 0; }

/* trust cards */
.trust { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.trust .card { border: 1px solid var(--line); }

/* references table */
.ref-table { width: 100%; border-collapse: collapse; margin-top: 40px; }
.ref-table th {
  font-family: var(--serif); text-align: left; font-size: 1.05rem; font-weight: 400;
  padding: 16px 14px; border-bottom: 2px solid var(--dark);
}
.ref-table td { padding: 14px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: .95rem; }
.ref-table tr:hover td { background: var(--mist); }
.table-scroll { overflow-x: auto; }

/* page banner */
.banner {
  position: relative; min-height: 320px; display: grid; place-items: center;
  background-size: cover; background-position: center; text-align: center;
}
.banner::before { content: ''; position: absolute; inset: 0; background: rgba(14,19,24,.55); }
.banner h1 { position: relative; color: #fff; padding: 40px 20px; }

/* service detail rows */
.service-row { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; padding: 60px 0; border-bottom: 1px solid var(--line); }
.service-row:last-child { border-bottom: 0; }
.service-row img { width: 100%; height: 380px; object-fit: cover; }
.service-row .text p { color: var(--muted); margin-bottom: 14px; }
.service-row.flip .imgwrap { order: 2; }

/* lovverk */
.law-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.law-item { background: var(--paper); border: 1px solid var(--line); }
.law-item img { width: 100%; height: 220px; object-fit: cover; }
.law-item .pad { padding: 28px; }
.law-item p { color: var(--muted); font-size: .95rem; margin: 12px 0 16px; }
.law-item a { font-size: .8rem; letter-spacing: .16em; text-transform: uppercase; }

/* contact */
.contact-wrap { display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px; }
.contact-info h3 { margin: 26px 0 6px; }
.contact-info p { color: var(--muted); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid .full { grid-column: 1 / -1; }
input, select, textarea {
  width: 100%; padding: 14px 16px; border: 1px solid var(--line); background: var(--paper);
  font-family: var(--sans); font-size: .95rem; color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
textarea { min-height: 150px; resize: vertical; }
.form-note { font-size: .85rem; color: var(--muted); }
.form-status { margin-top: 14px; font-size: .95rem; display: none; }
.form-status.ok { display: block; color: #21703a; }
.form-status.err { display: block; color: #a3352b; }
.map-embed { margin-top: 70px; }
.map-embed iframe { width: 100%; height: 420px; border: 0; display: block; filter: grayscale(35%); }

/* cta band */
.cta-band {
  position: relative; background-size: cover; background-position: center; text-align: center; padding: 110px 24px;
}
.cta-band::before { content: ''; position: absolute; inset: 0; background: rgba(14,19,24,.68); }
.cta-band > * { position: relative; }
.cta-band h2 { color: #fff; margin-bottom: 26px; }

/* footer */
footer.site {
  position: relative; background: var(--dark) center/cover; color: #b7c0c7; text-align: center;
}
footer.site::before { content: ''; position: absolute; inset: 0; background: rgba(12,16,20,.88); }
footer.site .container { position: relative; padding: 80px 24px 34px; }
footer.site img.flogo { height: 44px; width: auto; margin: 0 auto 30px; }
footer.site .fcontact p { margin: 4px 0; }
footer.site a { color: #fff; }
footer.site .fnav { display: flex; justify-content: center; gap: 26px; flex-wrap: wrap; margin: 34px 0; }
footer.site .fnav a { color: #b7c0c7; font-size: .9rem; letter-spacing: .06em; }
footer.site .fnav a:hover { color: #fff; }
footer.site .copy { border-top: 1px solid rgba(255,255,255,.14); padding-top: 24px; font-size: .82rem; color: #8b969e; }

/* fade-in on scroll */
.fade { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.fade.in { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; }
  .hero .pitch { padding: 60px 24px; }
  .cards, .cards.cols-3, .trust { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .split, .service-row, .contact-wrap, .law-grid { grid-template-columns: 1fr; }
  .service-row.flip .imgwrap { order: 0; }
  nav.main {
    position: fixed; inset: 0 0 auto auto; width: min(210px, 60vw);
    max-height: 72vh; overflow-y: auto; -webkit-overflow-scrolling: touch;
    padding: 92px 0 22px; border-radius: 0 0 0 14px;
    background: rgba(255,255,255,.5);
    -webkit-backdrop-filter: blur(22px) saturate(1.6); backdrop-filter: blur(22px) saturate(1.6);
    flex-direction: column; justify-content: flex-start; align-items: center; gap: 8px;
    transform: translateX(100%); visibility: hidden;
    transition: transform .3s ease, visibility .3s;
    box-shadow: -12px 12px 46px rgba(0,0,0,.22); border-left: 1px solid rgba(20,24,29,.08);
    border-bottom: 1px solid rgba(20,24,29,.08);
    z-index: 60;
  }
  @supports not (backdrop-filter: blur(1px)) {
    nav.main { background: rgba(255,255,255,.96); }
  }
  nav.main.open { transform: none; visibility: visible; }
  nav.main a { font-size: 1rem; padding: 2px 0; }
  .nav-toggle { display: block; position: relative; z-index: 70; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
  body.nav-open { overflow: hidden; }
  .nav-scrim {
    position: fixed; inset: 0; background: rgba(14,19,24,.12); z-index: 45;
    opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s;
  }
  body.nav-open .nav-scrim { opacity: 1; visibility: visible; }
}
@media (max-width: 620px) {
  #site-header { min-height: 150px; }
  .cards, .cards.cols-3, .trust, .projects-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .topbar .container { flex-direction: column; padding: 6px 24px; gap: 2px; }
}