/* =====================================================================
   A QUALISORT POLSKA — "Petrol & Sand" editorial theme
   Serif display type, technical-drawing illustrations, copper accent.
   No external fonts, images or libraries: fast and privacy-friendly.
   ===================================================================== */

:root {
  --sand: #F2EEE6;
  --sand-2: #E7E0D3;
  --paper: #FBF9F4;
  --ink: #111B1D;
  --petrol: #0E3A41;
  --petrol-2: #082B31;
  --copper: #A9531F;      /* on light backgrounds */
  --copper-l: #E39A68;    /* on dark backgrounds */
  --muted: #55625F;
  --line: rgba(17, 27, 29, .14);
  --line-l: rgba(242, 238, 230, .2);

  --serif: Charter, "Bitstream Charter", "Sitka Text", Cambria, "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --wrap: 1320px;
  --gutter: clamp(20px, 4vw, 56px);
  --header-h: 76px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--sand);
  -webkit-font-smoothing: antialiased;
}
body.nav-open { overflow: hidden; }

img, svg { display: block; max-width: 100%; }
a { color: inherit; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; font-family: var(--serif); font-weight: 400; }
address { font-style: normal; }
figure { margin: 0; }

:focus-visible { outline: 3px solid var(--copper); outline-offset: 3px; }
.scope :focus-visible, .band :focus-visible, .footer :focus-visible,
.contact__info :focus-visible, .hero__visual :focus-visible { outline-color: var(--copper-l); }

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.skip-link {
  position: absolute; left: 12px; top: -64px; z-index: 100;
  padding: 12px 18px; background: var(--ink); color: var(--sand);
  text-decoration: none; transition: top .2s;
}
.skip-link:focus { top: 12px; }

.wrap {
  width: 100%;
  max-width: calc(var(--wrap) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.icon {
  width: 24px; height: 24px; flex: none;
  fill: none; stroke: currentColor; stroke-width: 1.6;
  stroke-linecap: round; stroke-linejoin: round;
}

/* ---------- Scroll reveal ---------- */
.js [data-reveal]:not(.is-in) { opacity: 0; }
.js [data-reveal].is-in { animation: rise .85s var(--ease) var(--d, 0s) backwards; }
@keyframes rise {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: none; }
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Shared type & buttons ---------- */
h2 {
  font-size: clamp(2.1rem, 4.2vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -.015em;
}
h2 em, h1 em { font-style: italic; color: var(--copper); }

.label {
  display: inline-flex; align-items: center; gap: 12px;
  margin: 0 0 22px;
  font-size: .78rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase;
  color: var(--copper);
}
.label::before { content: ""; width: 34px; height: 1px; background: currentColor; }
.label--light { color: var(--copper-l); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  padding: 16px 26px;
  font: 600 .95rem/1 var(--sans); letter-spacing: .02em; text-decoration: none;
  border: 1.5px solid transparent; border-radius: 2px; cursor: pointer;
  transition: background .25s, color .25s, border-color .25s;
}
.btn .icon { width: 18px; height: 18px; transition: transform .3s var(--ease); }
.btn:hover .icon { transform: translateX(4px); }
.btn--primary { background: var(--copper); color: #fff; }
.btn--primary:hover { background: var(--ink); }
.btn--ghost { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn--ghost:hover { background: var(--ink); color: var(--sand); }
.btn--ink { background: var(--ink); color: var(--sand); }
.btn--ink:hover { background: var(--paper); color: var(--ink); }
.btn--sm { padding: 13px 18px; font-size: .875rem; }

.section { padding-block: clamp(72px, 9vw, 140px); }

.section-head {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(20px, 5vw, 80px); align-items: end;
  margin-bottom: clamp(40px, 5vw, 72px);
}
.section-head .label { margin-bottom: 18px; }
.section-head > p { margin: 0; color: var(--muted); max-width: 52ch; justify-self: end; }

/* ---------- Top bar ---------- */
.topbar { background: var(--ink); color: rgba(242, 238, 230, .82); font-size: .8125rem; }
.topbar__in { display: flex; justify-content: space-between; gap: 16px; padding-block: 9px; }
.topbar a { text-decoration: none; }
.topbar a:hover { color: var(--copper-l); }
.topbar .icon { display: inline-block; width: 14px; height: 14px; margin-right: 8px; vertical-align: -2px; }

/* ---------- Header & navigation ---------- */
.header {
  position: sticky; top: 0; z-index: 50;
  background: var(--sand);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s;
}
.header.is-scrolled { box-shadow: 0 10px 28px -18px rgba(17, 27, 29, .4); }
.header__in { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }

.brand { position: relative; z-index: 2; display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand__mark { width: 42px; height: 42px; }
.m-bg { fill: var(--petrol); }
.m-ring { fill: none; stroke: var(--sand); stroke-width: 4; stroke-dasharray: 5.2 3.44; }
.m-core { fill: var(--copper-l); }
.brand__text { display: grid; line-height: 1.1; }
.brand__text strong { font-family: var(--serif); font-size: 1.35rem; font-weight: 700; letter-spacing: -.01em; }
.brand__text small { font-size: .68rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); margin-top: 3px; }

.nav { display: flex; align-items: center; gap: 32px; }
.nav__list { display: flex; gap: clamp(18px, 2vw, 34px); }
.nav__list a {
  position: relative; display: inline-block; padding: 8px 0;
  font-size: .92rem; font-weight: 500; text-decoration: none;
}
.nav__list a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 2px; height: 1.5px;
  background: var(--copper); transform: scaleX(0); transform-origin: left;
  transition: transform .3s var(--ease);
}
.nav__list a:hover::after, .nav__list a[aria-current="true"]::after { transform: scaleX(1); }

.nav-toggle {
  display: none; position: relative; z-index: 2;
  width: 46px; height: 46px; padding: 0;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
  border: 1px solid var(--line); background: transparent; color: var(--ink); cursor: pointer;
}
.nav-toggle span { display: block; width: 20px; height: 1.5px; background: currentColor; transition: transform .3s var(--ease), opacity .2s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding-block: clamp(48px, 7vw, 104px) clamp(64px, 8vw, 120px);
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: .6;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 60%);
  mask-image: linear-gradient(90deg, transparent 0%, #000 60%);
}
.hero__grid {
  position: relative;
  display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(32px, 5vw, 88px); align-items: center;
}
.hero h1 {
  font-size: clamp(2.7rem, 5.4vw, 5.2rem);
  line-height: 1.02; letter-spacing: -.025em;
  margin-bottom: 28px;
}
.hero__lead { max-width: 56ch; font-size: clamp(1.05rem, 1.35vw, 1.25rem); line-height: 1.6; color: #2c3a37; margin-bottom: 36px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 44px; }
.hero__points { display: flex; flex-wrap: wrap; gap: 12px 32px; padding-top: 28px; border-top: 1px solid var(--line); font-size: .95rem; font-weight: 500; }
.hero__points li { display: inline-flex; align-items: center; gap: 10px; }
.hero__points .icon { width: 18px; height: 18px; color: var(--copper); stroke-width: 2.2; }

.hero__visual {
  position: relative; isolation: isolate;
  aspect-ratio: 1 / 1.05;
  display: grid; place-items: center;
  padding: clamp(16px, 3vw, 36px);
  background: var(--petrol);
}
.hero__visual::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  border: 1px solid var(--copper); transform: translate(16px, 16px);
}
.hero-art { width: 100%; height: auto; }
.spin { transform-origin: 300px 300px; animation: spin 120s linear infinite; }

.chip {
  position: absolute; z-index: 2; display: grid; gap: 2px;
  padding: 12px 18px 12px 16px;
  background: var(--paper); color: var(--ink);
  border-left: 3px solid var(--copper);
  box-shadow: 0 20px 34px -20px rgba(8, 43, 49, .6);
  line-height: 1.25;
}
.chip__code { font-size: .68rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--copper); }
.chip b { font-family: var(--serif); font-size: 1.02rem; font-weight: 700; }
.chip--a { left: -30px; top: 12%; }
.chip--b { right: -22px; top: 46%; }
.chip--c { left: 7%; bottom: -22px; }

/* ---------- Facts band ---------- */
.band { background: var(--ink); color: var(--sand); }
.band__grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.band__cell {
  display: flex; flex-direction: column; justify-content: flex-start; gap: 10px;
  padding: clamp(26px, 3vw, 42px) clamp(16px, 2.4vw, 34px);
  border-left: 1px solid var(--line-l);
}
.band__cell:first-child { border-left: 0; padding-left: 0; }
.band__num { font-family: var(--serif); font-size: clamp(2.6rem, 4.2vw, 3.8rem); line-height: 1; color: var(--copper-l); text-decoration: none; }
.band__num--text { font-size: clamp(1.15rem, 2vw, 1.9rem); line-height: 1.2; padding-top: .45em; overflow-wrap: anywhere; }
.band__mail { font-size: clamp(1rem, 1.45vw, 1.35rem); }
.band__mail:hover { color: var(--sand); }
.band__txt { font-size: .9rem; color: rgba(242, 238, 230, .78); max-width: 32ch; }

/* ---------- About ---------- */
.about__grid {
  display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: clamp(32px, 6vw, 104px); align-items: start;
}
.about__aside { position: sticky; top: calc(var(--header-h) + 32px); }
.about__aside h2 { margin-bottom: 32px; }
.about__lead { font-family: var(--serif); font-size: clamp(1.3rem, 2.1vw, 1.8rem); line-height: 1.42; letter-spacing: -.005em; margin-bottom: 36px; }
.about__text { display: grid; grid-template-columns: 1fr 1fr; gap: 24px clamp(24px, 4vw, 56px); color: #2c3a37; }
.about__text p { margin: 0; }

.principles { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: clamp(36px, 4vw, 56px); border-top: 1px solid var(--ink); }
.principle { padding: 24px 24px 0 0; }
.principle + .principle { padding-left: 24px; border-left: 1px solid var(--line); }
.principle h3 { font-size: 1.3rem; margin-bottom: 8px; }
.principle p { margin: 0; font-size: .95rem; color: var(--muted); }

.gallery {
  display: grid; grid-template-columns: 5fr 4fr 3fr; align-items: end;
  gap: clamp(12px, 2vw, 24px);
  margin-top: clamp(56px, 7vw, 96px);
}
.tile { position: relative; overflow: hidden; }
.tile svg { width: 100%; height: 100%; }
.tile--a { aspect-ratio: 5 / 6; background: var(--petrol); }
.tile--b { aspect-ratio: 1 / 1; background: var(--copper); }
.tile--c { aspect-ratio: 3 / 4; background: var(--ink); }
.tile figcaption {
  position: absolute; left: 0; bottom: 0; padding: 12px 18px;
  background: var(--paper); color: var(--ink);
  font-size: .74rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
}

.facts {
  display: grid; grid-template-columns: repeat(4, 1fr);
  margin: clamp(40px, 5vw, 72px) 0 0;
  border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line);
}
.facts > div { padding: 24px 24px 24px 0; }
.facts > div + div { padding-left: 24px; border-left: 1px solid var(--line); }
.facts dt { margin-bottom: 8px; font-size: .72rem; font-weight: 600; letter-spacing: .15em; text-transform: uppercase; color: var(--copper); }
.facts dd { margin: 0; font-size: .97rem; line-height: 1.5; }
.facts a { text-decoration-color: var(--copper); text-underline-offset: 3px; }

/* ---------- Services ---------- */
.services { background: var(--paper); }
.service-list { border-bottom: 1px solid var(--line); }
.service {
  position: relative; isolation: isolate;
  display: grid;
  grid-template-columns: 80px minmax(0, 1.05fr) minmax(0, 1.25fr) minmax(0, .9fr);
  gap: clamp(16px, 3vw, 48px); align-items: start;
  padding: clamp(28px, 3vw, 44px) clamp(16px, 2vw, 28px);
  border-top: 1px solid var(--line);
  transition: color .35s;
}
.service::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: var(--petrol);
  transform: scaleY(0); transform-origin: bottom;
  transition: transform .5s var(--ease);
}
.service:hover::before, .service:focus-within::before { transform: scaleY(1); }
.service:hover { color: var(--sand); }

.service__num {
  font-family: var(--serif); font-size: 2.6rem; line-height: 1;
  color: transparent; -webkit-text-stroke: 1px var(--copper);
  transition: -webkit-text-stroke-color .35s;
}
.service:hover .service__num { -webkit-text-stroke-color: var(--copper-l); }
.service__head { display: grid; justify-items: start; gap: 14px; }
.service__icon { width: 34px; height: 34px; color: var(--copper); transition: color .35s; }
.service h3 { font-size: clamp(1.5rem, 2.2vw, 2rem); line-height: 1.15; letter-spacing: -.01em; }
.tag {
  display: inline-block; padding: 4px 10px; border: 1px solid currentColor;
  font-size: .7rem; font-weight: 600; letter-spacing: .13em; text-transform: uppercase;
  color: var(--copper); transition: color .35s;
}
.service:hover .service__icon, .service:hover .tag { color: var(--copper-l); }
.service__text { margin: 0; color: var(--muted); transition: color .35s; }
.service:hover .service__text { color: rgba(242, 238, 230, .88); }
.service__list { display: grid; gap: 10px; font-size: .93rem; font-weight: 500; }
.service__list li { display: flex; align-items: flex-start; gap: 12px; }
.service__list li::before { content: ""; flex: none; width: 7px; height: 7px; margin-top: .6em; background: var(--copper); transition: background .35s; }
.service:hover .service__list li::before { background: var(--copper-l); }

/* ---------- Scope of activity ---------- */
.scope { position: relative; overflow: hidden; background: var(--petrol); color: var(--sand); }
.scope::before, .scope::after {
  content: ""; position: absolute; border-radius: 50%; pointer-events: none;
  border: 1px dashed rgba(242, 238, 230, .16);
}
.scope::before { width: 560px; height: 560px; right: -200px; top: -220px; }
.scope::after  { width: 340px; height: 340px; right: -90px;  top: -110px; }
.scope__grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(32px, 6vw, 104px); align-items: start;
}
.scope h2 em { color: var(--copper-l); }
.scope__intro h2 { margin-bottom: 24px; }
.scope__intro > p { color: rgba(242, 238, 230, .82); max-width: 50ch; }
.notin { margin-top: 36px; padding: 24px 26px; border: 1px solid var(--line-l); background: rgba(8, 43, 49, .55); }
.notin h3 { font-family: var(--sans); font-size: .74rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--copper-l); margin-bottom: 14px; }
.notin ul { display: grid; gap: 8px; }
.notin li { display: flex; align-items: center; gap: 12px; }
.notin li::before { content: "×"; color: var(--copper-l); font-size: 1.2rem; line-height: 1; }

.scope__rows { border-top: 1px solid var(--line-l); }
.scope-row {
  display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 24px;
  padding: 30px 0; border-bottom: 1px solid var(--line-l);
}
.scope-row__code { font-family: var(--serif); font-size: clamp(1.6rem, 2.4vw, 2.2rem); line-height: 1.1; color: var(--copper-l); }
.scope-row h3 { font-family: var(--sans); font-size: 1.05rem; font-weight: 600; line-height: 1.45; margin-bottom: 8px; }
.scope-row p { margin: 0; font-size: .88rem; font-style: italic; color: rgba(242, 238, 230, .72); }

/* ---------- Benefits ---------- */
.benefits__grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: clamp(14px, 1.6vw, 22px); }
.benefit {
  grid-column: span 2;
  display: flex; flex-direction: column; gap: 14px;
  padding: clamp(24px, 2.6vw, 38px);
  background: var(--paper); border: 1px solid var(--line);
  transition: border-color .3s, box-shadow .3s;
}
.benefit:hover { border-color: var(--copper); box-shadow: 0 28px 40px -30px rgba(17, 27, 29, .5); }
.benefit--lg { grid-column: span 3; min-height: 340px; }
.benefit--dark { background: var(--petrol); color: var(--sand); border-color: var(--petrol); }
.benefit--tint { background: #E9D5C3; border-color: #E9D5C3; }
.benefit__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.benefit__icon { display: grid; place-items: center; width: 52px; height: 52px; border: 1px solid currentColor; border-radius: 50%; color: var(--copper); }
.benefit--dark .benefit__icon { color: var(--copper-l); }
.benefit__no { font-family: var(--serif); font-size: 1.1rem; opacity: .6; }
.benefit h3 { font-size: clamp(1.4rem, 2vw, 1.8rem); line-height: 1.15; letter-spacing: -.01em; }
.benefit p { margin: 0; color: var(--muted); }
.benefit--dark p { color: rgba(242, 238, 230, .86); }
.benefit--tint p { color: #3c403d; }
.benefit__note {
  margin-top: auto; padding-top: 18px; border-top: 1px solid currentColor;
  font-size: .74rem; font-weight: 600; letter-spacing: .15em; text-transform: uppercase; opacity: .85;
}

/* ---------- Process ---------- */
.process { background: var(--paper); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); }
.step { position: relative; padding-right: clamp(16px, 2.4vw, 36px); }
.step::before { content: ""; position: absolute; top: 23px; left: 62px; right: 12px; height: 1px; background: var(--line); }
.step:last-child::before { display: none; }
.step__num {
  position: relative; z-index: 1;
  display: grid; place-items: center; width: 46px; height: 46px; margin-bottom: 24px;
  border-radius: 50%; background: var(--ink); color: var(--sand);
  font-family: var(--serif); font-size: 1.1rem;
}
.step h3 { font-size: 1.5rem; margin-bottom: 10px; }
.step p { margin: 0; color: var(--muted); font-size: .97rem; }

/* ---------- Call to action ---------- */
.cta { background: var(--copper); color: #fff; padding-block: clamp(48px, 6vw, 84px); }
.cta__in { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta h2 { max-width: 20ch; font-size: clamp(1.9rem, 3.6vw, 3rem); }
.cta p { margin: 14px 0 0; color: rgba(255, 255, 255, .92); }

/* ---------- FAQ ---------- */
.faq__grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(32px, 6vw, 104px); align-items: start; }
.faq__grid > div:first-child { position: sticky; top: calc(var(--header-h) + 32px); }
.faq__note { margin-top: 28px; color: var(--muted); }
.faq__note a { text-underline-offset: 3px; text-decoration-color: var(--copper); }
.faq-item { border-top: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 26px 0; cursor: pointer; list-style: none;
  font-family: var(--serif); font-size: clamp(1.15rem, 1.7vw, 1.4rem); line-height: 1.3;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; flex: none; font-family: var(--sans); font-size: 1.7rem; line-height: 1;
  color: var(--copper); transition: transform .3s var(--ease);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { color: var(--copper); }
.faq__body { padding: 0 48px 28px 0; max-width: 62ch; color: var(--muted); }
.faq__body p { margin: 0; }

/* ---------- Contact ---------- */
.contact { background: var(--sand-2); }
.contact__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); box-shadow: 0 40px 60px -48px rgba(17, 27, 29, .55); }
.contact__info { display: flex; flex-direction: column; gap: 32px; padding: clamp(28px, 4vw, 56px); background: var(--petrol); color: var(--sand); }
.contact__info > h3 { font-size: 1.8rem; }
.contact__info address { display: grid; gap: 24px; }
.info-item { display: flex; gap: 16px; align-items: flex-start; }
.info-item .icon { margin-top: 3px; color: var(--copper-l); }
.info-item span { display: block; margin-bottom: 2px; font-size: .72rem; font-weight: 600; letter-spacing: .15em; text-transform: uppercase; color: rgba(242, 238, 230, .72); }
.info-item strong { font-weight: 500; line-height: 1.45; overflow-wrap: anywhere; }
.info-item a { text-decoration-color: var(--copper-l); text-underline-offset: 3px; }
.include { padding-top: 28px; border-top: 1px solid var(--line-l); }
.include h4 { margin-bottom: 14px; font-family: var(--sans); font-size: .74rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--copper-l); }
.include ul { display: grid; gap: 8px; font-size: .95rem; }
.include li { display: flex; gap: 12px; }
.include li::before { content: ""; flex: none; width: 7px; height: 7px; margin-top: .6em; background: var(--copper-l); }
.maplink { display: inline-flex; align-items: center; gap: 10px; margin-top: auto; font-weight: 600; text-decoration: none; color: var(--copper-l); }
.maplink .icon { width: 18px; height: 18px; transition: transform .3s var(--ease); }
.maplink:hover .icon { transform: translateX(4px); }

.contact__form { padding: clamp(28px, 4vw, 56px); background: var(--paper); }
.form { display: grid; gap: 22px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.field { display: grid; gap: 8px; align-content: start; }
.field > label { font-size: .76rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; }
.field input[type="text"], .field input[type="email"], .field input[type="tel"], .field select, .field textarea {
  width: 100%; padding: 14px 16px;
  font: inherit; color: var(--ink); background: #fff;
  border: 1px solid rgba(17, 27, 29, .3); border-radius: 2px;
  transition: border-color .2s, box-shadow .2s;
}
.field textarea { min-height: 150px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--copper); box-shadow: 0 0 0 3px rgba(169, 83, 31, .22);
}
.field [aria-invalid="true"] { border-color: #B3261E; }
.field__error { margin: 0; font-size: .85rem; color: #B3261E; }
.field__error:empty { display: none; }
.check { display: flex; gap: 14px; align-items: flex-start; font-size: .92rem; line-height: 1.5; cursor: pointer; text-transform: none; letter-spacing: 0; font-weight: 400; }
.check input { flex: none; width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--copper); }
.check a { text-underline-offset: 3px; text-decoration-color: var(--copper); }
.form__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 18px 24px; }
.form__status { margin: 0; font-size: .92rem; max-width: 46ch; }
.form__status.is-success { color: #1F6B3B; }
.form__status.is-error { color: #B3261E; }

/* ---------- Footer ---------- */
.footer { background: var(--ink); color: rgba(242, 238, 230, .82); padding-top: clamp(56px, 7vw, 96px); font-size: .95rem; }
.footer a { text-decoration: none; }
.footer a:hover { color: var(--copper-l); }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: clamp(28px, 4vw, 64px); padding-bottom: clamp(40px, 5vw, 72px); }
.footer .brand__text strong { color: var(--sand); }
.footer .brand__text small { color: rgba(242, 238, 230, .7); }
.footer .m-bg { fill: var(--sand); }
.footer .m-ring { stroke: var(--petrol); }
.footer .m-core { fill: var(--copper); }
.footer__brand p { max-width: 36ch; margin: 20px 0 0; }
.footer__col h4 { margin-bottom: 18px; font-family: var(--sans); font-size: .74rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--copper-l); }
.footer__col ul { display: grid; gap: 9px; }
.footer__col address { line-height: 1.8; }
.footer__bar {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px;
  padding-block: 24px; border-top: 1px solid var(--line-l); font-size: .85rem;
}
.footer__bar p { margin: 0; }

/* ---------- Privacy dialog ---------- */
dialog { width: calc(100% - 40px); max-width: 640px; max-height: 86vh; padding: 0; border: 0; background: var(--paper); color: var(--ink); }
dialog::backdrop { background: rgba(8, 43, 49, .72); }
.dialog__in { position: relative; padding: clamp(24px, 4vw, 44px); }
.dialog__in h2 { font-size: 2rem; margin-bottom: 20px; }
.dialog__in h3 { margin: 22px 0 6px; font-family: var(--sans); font-size: .76rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--copper); }
.dialog__in p { margin: 0; font-size: .97rem; }
.dialog__in a { text-underline-offset: 3px; text-decoration-color: var(--copper); }
.dialog__close {
  position: absolute; top: 12px; right: 12px; width: 42px; height: 42px;
  border: 1px solid var(--line); background: transparent; color: var(--ink);
  font-size: 1.6rem; line-height: 1; cursor: pointer;
}
.dialog__close:hover { background: var(--ink); color: var(--sand); }

/* =====================================================================
   Responsive
   ===================================================================== */
@media (max-width: 1119px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: fixed; inset: 0; z-index: 1;
    flex-direction: column; align-items: stretch; justify-content: flex-start; gap: 28px;
    padding: calc(var(--header-h) + 28px) var(--gutter) 40px;
    background: var(--sand); overflow-y: auto;
    transform: translateY(-100%); visibility: hidden;
    transition: transform .45s var(--ease), visibility 0s .45s;
  }
  .nav.is-open { transform: none; visibility: visible; transition: transform .45s var(--ease); }
  .nav__list { flex-direction: column; gap: 0; width: 100%; }
  .nav__list a { display: block; padding: 18px 0; border-bottom: 1px solid var(--line); font-family: var(--serif); font-size: 1.8rem; font-weight: 400; }
  .nav__list a::after { display: none; }
  .nav__list a[aria-current="true"] { color: var(--copper); }
  .nav__cta { align-self: flex-start; }
}

@media (max-width: 1100px) {
  .service { grid-template-columns: 64px minmax(0, 1fr) minmax(0, 1.2fr); }
  .service__list { grid-column: 2 / -1; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 960px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__visual { width: 100%; max-width: 560px; margin-inline: auto; }
  .about__grid, .faq__grid, .scope__grid, .contact__grid { grid-template-columns: 1fr; }
  .about__aside, .faq__grid > div:first-child { position: static; }
  .section-head { grid-template-columns: 1fr; align-items: start; }
  .section-head > p { justify-self: start; }
  .benefits__grid { grid-template-columns: repeat(2, 1fr); }
  .benefit, .benefit--lg { grid-column: span 1; min-height: 0; }
  .benefit:last-child { grid-column: 1 / -1; }
  .steps { grid-template-columns: 1fr 1fr; gap: 40px 24px; }
  .step:nth-child(2)::before { display: none; }
  .band__grid { grid-template-columns: 1fr 1fr; }
  .band__cell:nth-child(odd) { border-left: 0; padding-left: 0; }
  .band__cell:nth-child(n+3) { border-top: 1px solid var(--line-l); }
  .facts { grid-template-columns: 1fr 1fr; }
  .facts > div:nth-child(odd) { padding-left: 0; border-left: 0; }
  .facts > div:nth-child(n+3) { border-top: 1px solid var(--line); }
}

@media (max-width: 760px) {
  body { font-size: 1rem; }
  .topbar__addr { display: none; }
  .topbar__in { justify-content: center; }
  .about__text { grid-template-columns: 1fr; }
  .principles { grid-template-columns: 1fr; }
  .principle, .principle + .principle { padding: 20px 0; border-left: 0; }
  .principle + .principle { border-top: 1px solid var(--line); }
  .gallery { grid-template-columns: 1fr 1fr; }
  .tile--a { grid-column: 1 / -1; aspect-ratio: 16 / 10; }
  .service { grid-template-columns: 1fr; gap: 16px; }
  .service__list { grid-column: auto; }
  .service__num { font-size: 2.1rem; }
  .scope-row { grid-template-columns: 1fr; gap: 10px; }
  .form__row { grid-template-columns: 1fr; }
  .chip { padding: 9px 12px; }
  .chip b { font-size: .9rem; }
  .chip--a { left: 10px; top: 10px; }
  .chip--b { display: none; }
  .chip--c { left: 10px; bottom: 10px; }
  .hero__visual::before { transform: translate(10px, 10px); }
  .cta__in { align-items: flex-start; }
  .footer__bar { flex-direction: column; }
}

@media (max-width: 560px) {
  .benefits__grid { grid-template-columns: 1fr; }
  .benefit:last-child { grid-column: auto; }
  .steps { grid-template-columns: 1fr; gap: 32px; }
  .step { padding: 0 0 0 66px; }
  .step__num { position: absolute; left: 0; top: 0; margin: 0; }
  .step::before, .step:nth-child(2)::before { display: block; top: 50px; bottom: -32px; left: 22px; right: auto; width: 1px; height: auto; }
  .step:last-child::before { display: none; }
  .band__grid { grid-template-columns: 1fr; }
  .band__cell, .band__cell:nth-child(odd) { padding-left: 0; border-left: 0; }
  .band__cell + .band__cell { border-top: 1px solid var(--line-l); }
  .facts { grid-template-columns: 1fr; }
  .facts > div, .facts > div + div { padding-left: 0; border-left: 0; }
  .facts > div + div { border-top: 1px solid var(--line); }
  .footer__grid { grid-template-columns: 1fr; }
  .hero__cta .btn { flex: 1 1 100%; }
  .gallery { grid-template-columns: 1fr; }
  .tile--b, .tile--c { aspect-ratio: 4 / 3; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; }
  .js [data-reveal]:not(.is-in) { opacity: 1; }
}