/* ==========================================================================
   Karlssons Rör AB — fristående designsystem
   Riktning: fotoburen, djup marinblå mot varmt papper, koppar som accent.
   Inga fasade hörn, inga varningsränder, inga hårda slagskuggor.
   ========================================================================== */

@font-face {
  font-family: 'IBM Plex Sans';
  src: url('fonts/IBMPlexSans-var.woff2') format('woff2');
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --paper:      #F6F4F1;
  --paper-2:    #ECE8E3;
  --card:       #FFFFFF;

  --navy:       #17364D;
  --navy-2:     #0F2537;
  --navy-line:  #2B4E68;

  --copper:     #B0552B;   /* ytor, vit text ovanpå */
  --copper-ink: #9A4A24;   /* kopparfärgad text på ljus botten */
  --copper-lit: #E0A176;   /* accent på marinblå botten */

  --ink:        #1B2A33;
  --ink-soft:   #52626D;
  --line:       #DDD6CE;
  --on-navy:    #FFFFFF;
  --on-navy-dim:#B7C7D3;

  --r-sm: 6px;
  --r:    10px;
  --r-lg: 16px;

  --skugga:    0 1px 2px rgba(23,54,77,0.06), 0 8px 22px rgba(23,54,77,0.07);
  --skugga-hi: 0 2px 4px rgba(23,54,77,0.08), 0 16px 38px rgba(23,54,77,0.12);

  --font: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --shell: 1180px;
  --header-h: 76px;   /* uppmätt sidhuvudshöjd, styr ankaroffseten */
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  padding-bottom: 66px;
}
@media (min-width: 980px) { body { padding-bottom: 0; } }

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--ink);
  overflow-wrap: break-word;
}
p { margin: 0; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
a, button { cursor: pointer; }
ul { list-style: none; margin: 0; padding: 0; }

:focus-visible { outline: 3px solid var(--copper-ink); outline-offset: 3px; border-radius: 4px; }
.on-navy :focus-visible { outline-color: var(--copper-lit); }

.shell { max-width: var(--shell); margin: 0 auto; padding-left: 20px; padding-right: 20px; }
@media (min-width: 720px) { .shell { padding-left: 32px; padding-right: 32px; } }

.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: -9999px; top: 0; z-index: 300; background: var(--navy); color: #fff; font-weight: 600; padding: 14px 22px; border-radius: 0 0 var(--r-sm) 0; }
.skip-link:focus { left: 0; }

/* ---------- Toppband ---------- */

.demo-note {
  background: var(--navy-2); color: var(--on-navy-dim);
  font-size: 0.82rem; text-align: center; padding: 10px 16px;
}
.demo-note strong { color: #fff; font-weight: 600; }
.demo-note a { color: var(--copper-lit); text-decoration: underline; text-underline-offset: 3px; }

.jour-bar { background: var(--navy); color: var(--on-navy); }
.jour-bar-inner {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
  gap: 8px 16px; text-align: center; padding-block: 12px; font-size: 0.94rem;
}
.jour-bar-inner .markor {
  display: inline-flex; align-items: center; gap: 9px; font-weight: 600; color: var(--copper-lit);
}
.jour-bar-inner .markor svg { flex-shrink: 0; }
.jour-bar-inner .tel {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--copper); color: #fff; font-weight: 600;
  padding: 8px 16px; min-height: 40px; border-radius: 999px;
  transition: background-color 180ms ease;
}
.jour-bar-inner .tel:hover { background: #C46031; }

/* ---------- Masthead ---------- */

.masthead {
  position: sticky; top: 0; z-index: 100;
  background: rgba(246,244,241,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.masthead-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 14px; }
.wordmark { display: flex; align-items: center; gap: 12px; font-weight: 600; font-size: 1.05rem; letter-spacing: -0.01em; }
.wordmark .mark {
  width: 40px; height: 40px; flex-shrink: 0; border-radius: var(--r-sm);
  background: var(--navy); color: var(--copper-lit);
  display: flex; align-items: center; justify-content: center;
}
.wordmark em { display: block; font-style: normal; font-weight: 500; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-soft); }

.masthead-links { display: none; align-items: center; gap: 28px; font-size: 0.95rem; font-weight: 500; }
.masthead-links a { color: var(--ink-soft); padding-block: 4px; border-bottom: 2px solid transparent; transition: color 180ms ease, border-color 180ms ease; }
.masthead-links a:hover { color: var(--ink); border-bottom-color: var(--copper); }
.masthead-phone { display: none; align-items: center; gap: 9px; font-weight: 600; color: var(--navy); white-space: nowrap; }
.masthead-phone svg { flex-shrink: 0; color: var(--copper-ink); }

.menu-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; flex-shrink: 0;
  background: var(--card); color: var(--navy);
  border: 1px solid var(--line); border-radius: var(--r-sm);
}
@media (min-width: 980px) {
  .masthead-links { display: flex; }
  .masthead-phone { display: flex; }
  .menu-btn { display: none; }
}

.drawer { display: none; background: var(--card); border-top: 1px solid var(--line); }
.drawer.is-open { display: block; }
.drawer ul { padding-block: 6px; }
.drawer li + li { border-top: 1px solid var(--line); }
.drawer a:not(.btn) { display: block; padding-block: 14px; font-weight: 500; }
.drawer .btn { margin-block: 14px 8px; }

/* ---------- Knappar ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: inherit; font-size: 1rem; font-weight: 600;
  padding: 14px 24px; min-height: 50px;
  border: 1px solid transparent; border-radius: var(--r-sm); text-align: center;
  transition: background-color 180ms ease, border-color 180ms ease, box-shadow 180ms ease, transform 120ms ease;
}
.btn:active { transform: translateY(1px); }
.btn svg { flex-shrink: 0; }
.btn-primar { background: var(--copper); color: #fff; box-shadow: var(--skugga); }
.btn-primar:hover { background: #C46031; box-shadow: var(--skugga-hi); }
.btn-navy { background: var(--navy); color: #fff; box-shadow: var(--skugga); }
.btn-navy:hover { background: #1E4463; box-shadow: var(--skugga-hi); }
.btn-linje { background: var(--card); color: var(--navy); border-color: var(--line); }
.btn-linje:hover { border-color: var(--navy); }
.btn-ljus { background: rgba(255,255,255,0.12); color: #fff; border-color: rgba(255,255,255,0.35); }
.btn-ljus:hover { background: rgba(255,255,255,0.2); }
.btn-block { width: 100%; }

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

.hero { position: relative; overflow: hidden; padding-block: 40px 48px; }
@media (min-width: 900px) { .hero { padding-block: 64px 72px; } }
.hero-grid { position: relative; z-index: 1; display: grid; gap: 34px; align-items: center; }
@media (min-width: 980px) { .hero-grid { grid-template-columns: 1.02fr 0.98fr; gap: 52px; } }

/* Rörschemat: linjeritning i koppar, samma motiv som förut men lugnare */
.pipe-art { position: absolute; top: -30px; right: -90px; width: 560px; opacity: 0.13; pointer-events: none; z-index: 0; }
@media (max-width: 979px) { .pipe-art { width: 380px; right: -140px; opacity: 0.1; } }

.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--copper-ink); background: var(--paper-2);
  border-radius: 999px; padding: 8px 15px; margin-bottom: 20px;
}
.eyebrow svg { flex-shrink: 0; }
.hero h1 { font-size: clamp(2.1rem, 4.8vw, 3.15rem); letter-spacing: -0.025em; text-wrap: balance; }
.hero h1 em { font-style: normal; color: var(--copper-ink); }
.hero-lead { margin-top: 18px; font-size: 1.08rem; color: var(--ink-soft); max-width: 48ch; }
.hero-ctas { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 12px; }
.hero-marks { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 10px 22px; }
.hero-marks li { display: flex; align-items: center; gap: 9px; font-size: 0.9rem; font-weight: 500; color: var(--ink-soft); }
.hero-marks svg { color: var(--copper-ink); flex-shrink: 0; }

.hero-media { position: relative; }
.hero-media img {
  width: 100%; height: 100%; max-height: 480px; object-fit: cover;
  border-radius: var(--r-lg); box-shadow: var(--skugga-hi);
}
.jour-kort {
  background: var(--navy); color: var(--on-navy);
  border-radius: var(--r); padding: 22px 24px;
  box-shadow: var(--skugga-hi);
  margin: -46px 16px 0; position: relative; z-index: 2;
}
@media (min-width: 620px) { .jour-kort { margin: -56px 32px 0; } }
.jour-kort .kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.74rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--copper-lit); margin-bottom: 10px;
}
.jour-kort h2 { color: #fff; font-size: 1.12rem; }
.jour-tel {
  margin-top: 12px; display: flex; align-items: center; gap: 11px;
  font-size: 1.6rem; font-weight: 600; color: #fff; letter-spacing: -0.02em;
}
.jour-tel svg { color: var(--copper-lit); flex-shrink: 0; }
.jour-kort .sub { margin-top: 8px; font-size: 0.86rem; color: var(--on-navy-dim); }

/* ---------- Trygghetsband ---------- */

.trust-band { background: var(--navy); color: var(--on-navy); }
.trust-inner { padding-block: 26px; display: grid; gap: 20px; grid-template-columns: 1fr 1fr; }
@media (min-width: 900px) { .trust-inner { grid-template-columns: repeat(4, 1fr); gap: 28px; } }
.trust-item { display: flex; align-items: flex-start; gap: 12px; }
.trust-item svg { flex-shrink: 0; color: var(--copper-lit); margin-top: 2px; }
.trust-item b { display: block; font-weight: 600; font-size: 0.98rem; }
.trust-item span { display: block; font-size: 0.82rem; color: var(--on-navy-dim); margin-top: 2px; }

/* ---------- Sektioner ---------- */

/* Mindre luft över än under: sektionen landar tätare under headern när man
   hoppar dit via menyn, samtidigt som avståndet mellan sektionerna består. */
.band { padding-block: 28px 56px; }
@media (min-width: 900px) { .band { padding-block: 40px 84px; } }
.band-paper { background: var(--paper); }
.band-paper-2 { background: var(--paper-2); }
.band-navy { background: var(--navy); color: var(--on-navy); }
.band-navy h2, .band-navy h3 { color: #fff; }

.band-head { max-width: 640px; margin-bottom: 36px; }
.band-eyebrow {
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.09em; text-transform: uppercase;
  color: var(--copper-ink); margin-bottom: 12px;
}
.band-navy .band-eyebrow { color: var(--copper-lit); }
.band-head h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); text-wrap: balance; }
.band-head p { margin-top: 14px; font-size: 1.03rem; color: var(--ink-soft); }
.band-navy .band-head p { color: var(--on-navy-dim); }

/* ---------- Tjänster ---------- */

.svc-grid { display: grid; gap: 18px; }
@media (min-width: 640px) { .svc-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .svc-grid { grid-template-columns: repeat(3, 1fr); } }
.svc {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r);
  padding: 24px 22px 26px; box-shadow: var(--skugga);
  transition: box-shadow 200ms ease, transform 200ms ease;
}
.svc:hover { box-shadow: var(--skugga-hi); transform: translateY(-2px); }
.svc-ikon {
  width: 46px; height: 46px; border-radius: var(--r-sm);
  background: var(--paper-2); color: var(--copper-ink);
  display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
}
.svc h3 { font-size: 1.06rem; }
.svc p { margin-top: 9px; font-size: 0.94rem; color: var(--ink-soft); }
.svc .jour-flagga {
  margin-top: 14px; display: inline-flex; align-items: center; gap: 7px;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--copper-ink);
}

/* ---------- Utryckningskedjan ---------- */

.chain { display: grid; gap: 18px; }
@media (min-width: 860px) { .chain { grid-template-columns: repeat(3, 1fr); gap: 24px; } }
.chain-step { position: relative; background: rgba(255,255,255,0.055); border: 1px solid var(--navy-line); border-radius: var(--r); padding: 24px 22px; }
.chain-step .no {
  width: 34px; height: 34px; border-radius: 999px; background: var(--copper); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem; font-weight: 600; margin-bottom: 14px;
}
.chain-step h3 { font-size: 1.04rem; }
.chain-step p { margin-top: 8px; font-size: 0.93rem; color: var(--on-navy-dim); }
/* Kopplingen mellan stegen: samma rörmotiv, men som en tunn linje */
@media (min-width: 860px) {
  .chain-step:not(:last-child)::after {
    content: ''; position: absolute; top: 50%; right: -24px; width: 24px; height: 2px;
    background: var(--navy-line); transform: translateY(-50%);
  }
}
.chain-lofte {
  margin-top: 24px; display: flex; flex-wrap: wrap; align-items: center; gap: 14px 28px;
  background: rgba(255,255,255,0.055); border: 1px solid var(--navy-line);
  border-radius: var(--r); padding: 24px 26px;
}
.chain-lofte .matt { font-size: clamp(1.8rem, 5vw, 2.4rem); font-weight: 600; color: var(--copper-lit); letter-spacing: -0.02em; line-height: 1; }
.chain-lofte p { color: var(--on-navy-dim); max-width: 52ch; font-size: 0.97rem; }

/* ---------- Om oss ---------- */

.about-grid { display: grid; gap: 34px; align-items: center; }
@media (min-width: 920px) { .about-grid { grid-template-columns: 0.9fr 1.1fr; gap: 52px; } }
.about-media img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover;
  border-radius: var(--r-lg); box-shadow: var(--skugga-hi); }
.about-copy p { font-size: 1.02rem; color: var(--ink-soft); }
.about-copy p + p { margin-top: 14px; }
.about-sign { margin-top: 20px; padding-left: 16px; border-left: 3px solid var(--copper); }
.about-sign b { display: block; font-weight: 600; color: var(--ink); }
.about-sign span { font-size: 0.88rem; color: var(--ink-soft); }

.meter-rad { margin-top: 34px; display: grid; gap: 16px; grid-template-columns: 1fr 1fr; }
@media (min-width: 700px) { .meter-rad { grid-template-columns: repeat(4, 1fr); } }
.meter { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 18px 20px; }
.meter b { display: block; font-size: 1.5rem; font-weight: 600; color: var(--navy); letter-spacing: -0.02em; }
.meter span { display: block; font-size: 0.84rem; color: var(--ink-soft); margin-top: 4px; }

.cert-strip { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 10px; }
.cert-tag {
  display: inline-flex; align-items: center; gap: 9px;
  background: var(--card); border: 1px solid var(--line); border-radius: 999px;
  padding: 10px 16px; font-size: 0.87rem; font-weight: 500; color: var(--ink);
}
.cert-tag svg { color: var(--copper-ink); flex-shrink: 0; }

/* ---------- Referensjobb ---------- */

.jobs { display: grid; gap: 22px; }
@media (min-width: 820px) { .jobs { grid-template-columns: repeat(3, 1fr); } }
.job { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; box-shadow: var(--skugga); }
.job img { width: 100%; height: 200px; object-fit: cover; }
.job-body { padding: 20px 22px 24px; }
.job-ref { font-size: 0.76rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--copper-ink); }
.job h3 { margin-top: 8px; font-size: 1.04rem; }
.job p { margin-top: 9px; font-size: 0.93rem; color: var(--ink-soft); }

/* ---------- Omdömen ---------- */

.quotes { display: grid; gap: 20px; }
@media (min-width: 780px) { .quotes { grid-template-columns: repeat(2, 1fr); } }
.quote { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 24px; box-shadow: var(--skugga); }
.quote-stars { display: flex; gap: 3px; color: var(--copper); margin-bottom: 12px; }
.quote p { font-size: 1rem; color: var(--ink); }
.quote-foot { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 14px; }
.quote-foot b { font-weight: 600; font-size: 0.94rem; }
.quote-foot span { font-size: 0.84rem; color: var(--ink-soft); }

/* ---------- Kontakt ---------- */

.contact-grid { display: grid; gap: 24px; }
@media (min-width: 940px) { .contact-grid { grid-template-columns: 0.9fr 1.1fr; gap: 36px; align-items: start; } }

.contact-jour { background: rgba(255,255,255,0.055); border: 1px solid var(--navy-line); border-radius: var(--r); padding: 26px; }
.contact-jour h3 { font-size: 1.12rem; }
.contact-jour > p { margin-top: 9px; font-size: 0.95rem; color: var(--on-navy-dim); }
.contact-fakta { margin-top: 20px; display: grid; gap: 16px; }
.contact-fakta div { display: flex; align-items: flex-start; gap: 12px; }
.contact-fakta svg { flex-shrink: 0; margin-top: 3px; color: var(--copper-lit); }
.contact-fakta b { display: block; font-size: 0.84rem; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; color: #fff; }
.contact-fakta p { font-size: 0.92rem; color: var(--on-navy-dim); margin-top: 2px; }
.contact-fakta a { text-decoration: underline; text-underline-offset: 3px; }

.form-panel { background: var(--card); border-radius: var(--r); padding: 26px 24px 28px; box-shadow: var(--skugga-hi); color: var(--ink); }
.form-panel h3 { font-size: 1.15rem; }
.form-panel > p { margin-top: 8px; font-size: 0.93rem; color: var(--ink-soft); margin-bottom: 20px; }

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.field label { font-size: 0.9rem; font-weight: 500; }
.field label .req { color: var(--copper-ink); }
.field input, .field textarea {
  font: inherit; padding: 12px 14px; min-height: 48px;
  background: var(--paper); color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--r-sm);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}
.field input:hover, .field textarea:hover { border-color: #C3B9AE; }
.field input:focus, .field textarea:focus { border-color: var(--navy); box-shadow: 0 0 0 3px rgba(23,54,77,0.12); }
.field textarea { min-height: 116px; resize: vertical; }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: #B3261E; }
.field-error { display: none; font-size: 0.84rem; font-weight: 500; color: #B3261E; }
.field-error.is-visible { display: block; }
.form-status { display: none; margin-top: 16px; font-size: 0.9rem; font-weight: 500; color: var(--navy); }
.form-status.is-visible { display: block; }

/* ---------- Fot & mobil ringlist ---------- */

.foot { background: var(--navy-2); color: var(--on-navy-dim); }
.foot-inner { padding-block: 30px; display: flex; flex-wrap: wrap; gap: 14px 24px; align-items: center; justify-content: space-between; }
.foot-mark { color: #fff; font-weight: 600; }
.foot-fine { font-size: 0.84rem; max-width: 62ch; }
.foot-fine a { color: var(--copper-lit); text-decoration: underline; text-underline-offset: 3px; }

.call-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
  background: var(--copper); box-shadow: 0 -4px 20px rgba(23,54,77,0.25);
}
.call-bar a { display: flex; align-items: center; justify-content: center; gap: 10px; padding: 15px 16px; min-height: 56px; color: #fff; font-weight: 600; }
.call-bar svg { flex-shrink: 0; }
@media (min-width: 980px) { .call-bar { display: none; } }