/* Vannfylling.no — moderne marketing-stil.
   Designprinsipper: clean type, generous whitespace, blå-vann-palett,
   mobile-first, ingen JS-rammeverk. */

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

:root {
  --blue-900: #0b2640;
  --blue-700: #154a7f;
  --blue-500: #1f6fbb;
  --blue-300: #4aa6e8;
  --blue-100: #dfeefb;
  --ink:      #0f172a;
  --ink-2:    #475569;
  --ink-3:    #64748b;
  --bg:       #ffffff;
  --bg-alt:   #f5f9fd;
  --accent:   #00B894;
  --warn:     #ff9800;
  --max:      1180px;
}

html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* === TOPBAR === */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #e5edf5;
}
.topbar .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex; align-items: center; gap: 12px;
  text-decoration: none; color: var(--blue-900);
  font-size: 19px; font-weight: 700; letter-spacing: -0.3px;
}
.brand img { display: block; }
.brand .dot { color: var(--blue-500); }
.topnav { display: flex; gap: 28px; }
.topnav a {
  color: var(--ink-2); text-decoration: none;
  font-size: 15px; font-weight: 500;
  transition: color .15s;
}
.topnav a:hover { color: var(--blue-500); }

/* === HERO === */
.hero {
  background:
    radial-gradient(circle at 80% 20%, rgba(74,166,232,.18), transparent 60%),
    radial-gradient(circle at 20% 80%, rgba(31,111,187,.10), transparent 60%),
    linear-gradient(180deg, #f7fbfe 0%, #ffffff 100%);
  padding: 80px 0 100px;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero h1 {
  font-size: clamp(32px, 4.5vw, 52px);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.8px;
  color: var(--blue-900);
  margin-bottom: 22px;
}
.hero .lead {
  font-size: clamp(16px, 1.4vw, 19px);
  color: var(--ink-2);
  max-width: 520px;
  margin-bottom: 28px;
}
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 14px 26px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: transform .08s, background .15s, box-shadow .15s;
  cursor: pointer;
  border: 0;
}
.btn:active { transform: scale(0.98); }
.btn-primary {
  background: var(--blue-500);
  color: #fff;
  box-shadow: 0 4px 14px rgba(31,111,187,0.25);
}
.btn-primary:hover { background: var(--blue-700); }
.btn-ghost {
  background: #fff;
  color: var(--blue-700);
  border: 1px solid var(--blue-300);
}
.btn-ghost:hover { background: var(--blue-100); }

.hero-img img {
  width: 100%; height: auto;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(11,38,64,0.18);
  object-fit: cover;
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, #dfeefb 0%, #c7e0f5 100%);
}

/* === BLOCKS === */
.block { padding: 80px 0; }
.block-alt { background: var(--bg-alt); }

.block h2 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 800;
  color: var(--blue-900);
  letter-spacing: -0.4px;
  margin-bottom: 14px;
  text-align: center;
}
.block-lead {
  font-size: 17px;
  color: var(--ink-2);
  max-width: 760px;
  margin: 0 auto 48px;
  text-align: center;
}

/* === CARDS === */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}
.card {
  background: #fff;
  border: 1px solid #e5edf5;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(11,38,64,0.05);
  transition: transform .2s, box-shadow .2s;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(11,38,64,0.12);
}
.card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  background: linear-gradient(135deg, #dfeefb 0%, #c7e0f5 100%);
  border-bottom: 1px solid #e5edf5;   /* diskret ramme/skille mot kort-teksten */
}
.card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--blue-900);
  padding: 18px 20px 6px;
}
.card p {
  font-size: 15px;
  color: var(--ink-2);
  padding: 0 20px 22px;
}
.card strong { color: var(--ink); }

/* === STEPS === */
.steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  counter-reset: step;
}
.steps li {
  background: #fff;
  border: 1px solid #e5edf5;
  border-radius: 14px;
  padding: 32px 24px;
  position: relative;
}
.step-n {
  display: inline-flex;
  align-items: center; justify-content: center;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--blue-500);
  color: #fff;
  font-weight: 800;
  font-size: 18px;
  margin-bottom: 14px;
}
.steps h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--blue-900);
  margin-bottom: 6px;
}
.steps p {
  font-size: 15px;
  color: var(--ink-2);
}

/* === FEATURES === */
.grid-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.feature {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  border: 1px solid #e5edf5;
}
.feature h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--blue-900);
  margin-bottom: 8px;
}
.feature p {
  font-size: 14.5px;
  color: var(--ink-2);
}

/* === BADGES === */
.badges {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.badges li {
  background: #fff;
  border: 1px solid #dfeefb;
  color: var(--blue-700);
  padding: 8px 16px;
  border-radius: 99px;
  font-size: 14px;
  font-weight: 500;
}

/* === KONTAKT === */
.kontakt {
  max-width: 640px;
  text-align: center;
}
.kontakt p { font-size: 17px; color: var(--ink-2); margin-bottom: 14px; }
.contact-line {
  font-size: 19px !important;
  color: var(--ink) !important;
  line-height: 2;
  margin-top: 14px;
}
.contact-line a {
  color: var(--blue-500);
  text-decoration: none;
  font-weight: 600;
}
.contact-line a:hover { text-decoration: underline; }
code {
  background: var(--blue-100);
  color: var(--blue-700);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 13px;
}

/* === FAQ === */
.faq { max-width: 820px; margin: 8px auto 0; }
.faq details {
  border: 1px solid var(--blue-100);
  border-radius: 12px;
  background: var(--bg);
  margin-bottom: 12px;
  padding: 0 20px;
  box-shadow: 0 1px 3px rgba(15,40,80,.05);
}
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 0;
  font-weight: 600;
  color: var(--blue-900);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-size: 22px;
  color: var(--blue-500);
  line-height: 1;
}
.faq details[open] summary::after { content: "\2212"; }
.faq details p {
  margin: 0 0 18px;
  color: var(--ink-2);
  line-height: 1.6;
}

/* === BLOGG === */
.crumbs { font-size: 13px; color: var(--ink-3); padding: 28px 0 0; }
.crumbs a { color: var(--blue-500); text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }

.blog-intro { padding: 8px 0 0; }
.blog-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 24px;
}
.blog-card {
  border: 1px solid var(--blue-100);
  border-radius: 14px;
  padding: 24px;
  background: var(--bg);
  text-decoration: none;
  color: inherit;
  transition: .18s;
  display: block;
}
.blog-card:hover { box-shadow: 0 8px 24px rgba(15,40,80,.08); transform: translateY(-2px); }
.blog-card .tag { font-size: 12px; color: var(--blue-500); font-weight: 600; text-transform: uppercase; letter-spacing: .5px; }
.blog-card h2 { font-size: 20px; color: var(--blue-900); margin: 8px 0; }
.blog-card p { color: var(--ink-2); font-size: 15px; line-height: 1.55; margin: 0; }

.post { max-width: 760px; margin: 0 auto; padding: 12px 0 0; }
.post h1 { font-size: 36px; line-height: 1.2; color: var(--blue-900); margin: 12px 0 10px; }
.post .post-meta { color: var(--ink-3); font-size: 14px; margin-bottom: 28px; }
.post .lead { font-size: 20px; color: var(--ink-2); line-height: 1.6; margin-bottom: 24px; }
.post p, .post li { font-size: 18px; line-height: 1.7; color: var(--ink); margin: 0 0 18px; }
.post h2 { font-size: 26px; color: var(--blue-900); margin: 38px 0 12px; }
.post h3 { font-size: 20px; color: var(--blue-900); margin: 28px 0 10px; }
.post ul, .post ol { padding-left: 24px; margin: 0 0 18px; }
.post .cta-box {
  background: var(--bg-alt);
  border: 1px solid var(--blue-100);
  border-radius: 14px;
  padding: 24px 26px;
  margin: 40px 0 8px;
}
.post .cta-box h3 { margin-top: 0; }
.post .cta-box p { font-size: 16px; margin-bottom: 16px; }

/* === FOOTER === */
.footer {
  background: var(--blue-900);
  color: #94b8d4;
  padding: 32px 0;
  font-size: 13px;
  margin-top: 80px;
}
.footer a {
  color: var(--blue-300);
  text-decoration: none;
}
.footer a:hover { text-decoration: underline; }

/* === MOBIL === */
@media (max-width: 760px) {
  .topnav { display: none; }
  .hero { padding: 48px 0 60px; }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .hero h1 { font-size: 32px; }
  .block { padding: 56px 0; }
  .block h2 { font-size: 26px; }
  .cards, .steps, .grid-features {
    grid-template-columns: 1fr;
  }
  .card img { height: 200px; }
}