/* ФормЦех — site foundation */
:root {
  --bg: #ffffff;
  --bg-soft: #f4f4f4;
  --ink: #0a0a0a;
  --muted: #5c5c5c;
  --line: #e3e3e3;
  --line-strong: #c8c8c8;
  --pill: #0a0a0a;
  --pill-text: #ffffff;
  --shadow-pill: 0 15px 30px -10px rgba(0, 11, 48, 0.2);
  --fab: #1a1a1a;
  --container: 1200px;
  --gutter: 24px;
  --header-h: 88px;
  --radius-card: 20px;
  --radius-pill: 999px;
  --font: "Manrope", system-ui, -apple-system, sans-serif;
  --section-y: 96px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }
a:hover { opacity: 0.75; }
button, input, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4 { margin: 0 0 0.5em; line-height: 1.15; font-weight: 700; }
h1 { font-size: clamp(32px, 4vw, 52px); font-weight: 800; letter-spacing: -0.02em; text-transform: uppercase; }
h2 { font-size: clamp(28px, 3vw, 40px); text-transform: uppercase; }
h3 { font-size: 20px; }
p { margin: 0 0 0.85em; color: var(--muted); }
ul { margin: 0; padding: 0; list-style: none; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); border: 0;
}
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

.container {
  width: min(var(--container), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
}
.section { padding: var(--section-y) 0; }
.section--tight { padding: 48px 0; }
.section--soft { background: var(--bg-soft); }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--pill);
  background: var(--pill);
  color: var(--pill-text);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}
.btn:hover {
  background: var(--bg);
  color: var(--ink);
  box-shadow: var(--shadow-pill);
  opacity: 1;
}
.btn--ghost {
  background: transparent;
  color: var(--ink);
}
.btn--ghost:hover {
  background: var(--ink);
  color: var(--pill-text);
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px 8px 8px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 24px;
}
.badge__n {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  font-size: 13px;
}

/* Cards */
.card {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--bg);
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
a.card:hover {
  border-color: var(--line-strong);
  box-shadow: 0 10px 28px -12px rgba(0, 11, 48, 0.18);
  opacity: 1;
}
.card__body { padding: 20px 24px 24px; }
.card__img {
  aspect-ratio: 3 / 2;
  object-fit: cover;
  width: 100%;
  background: var(--bg-soft);
}
.card__title { margin: 0 0 8px; font-size: 18px; }
.card__text { margin: 0; font-size: 15px; }

.card--icon { padding: 22px; }
.card--icon .card__icon {
  width: 36px; height: 36px; margin-bottom: 12px;
  border-radius: 10px; background: var(--bg-soft);
  display: grid; place-items: center; font-size: 18px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header__inner {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.02em;
}
/* Inline mark — avoids broken external SVG (invalid XML from mangled Cyrillic) */
.logo::before {
  content: "";
  display: block;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  background-color: var(--ink);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 48 48'%3E%3Cg fill='%23000'%3E%3Crect x='4' y='10' width='28' height='6' rx='1.5'/%3E%3Crect x='8' y='20' width='28' height='6' rx='1.5'/%3E%3Crect x='12' y='30' width='28' height='6' rx='1.5'/%3E%3Ccircle cx='40' cy='33' r='4'/%3E%3C/g%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 48 48'%3E%3Cg fill='%23000'%3E%3Crect x='4' y='10' width='28' height='6' rx='1.5'/%3E%3Crect x='8' y='20' width='28' height='6' rx='1.5'/%3E%3Crect x='12' y='30' width='28' height='6' rx='1.5'/%3E%3Ccircle cx='40' cy='33' r='4'/%3E%3C/g%3E%3C/svg%3E") center / contain no-repeat;
}
.logo img { display: none; }
.logo__text { color: var(--ink); }
.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-left: 12px;
  flex: 1;
}
.nav a {
  font-size: 17px;
  font-weight: 500;
  white-space: nowrap;
}
.nav a[aria-current="page"] { font-weight: 700; }
.header-contacts {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: auto;
  flex-shrink: 0;
}
.header-contacts__text {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  line-height: 1.2;
}
.header-contacts__phone { font-size: 18px; font-weight: 500; }
.header-contacts__email { font-size: 13px; color: var(--muted); }
.socials { display: flex; gap: 8px; }
.socials a {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--ink); color: #fff;
  display: grid; place-items: center; font-size: 11px; font-weight: 700;
}
.socials img { width: 24px; height: 24px; object-fit: contain; }
.socials a:hover { opacity: 0.8; }
.burger {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.burger span {
  display: block; width: 18px; height: 2px; background: var(--ink);
}

/* Mobile nav drawer */
.nav-drawer {
  display: none;
  border-top: 1px solid var(--line);
  padding: 16px var(--gutter) 24px;
  background: #fff;
}
.nav-drawer.is-open { display: block; }
.nav-drawer a {
  display: block;
  padding: 12px 0;
  font-size: 18px;
  font-weight: 500;
  border-bottom: 1px solid var(--line);
}
.nav-drawer .btn { width: 100%; margin-top: 16px; }

/* Hero */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: flex;
  align-items: center;
  background: linear-gradient(180deg, #f7f7f7 0%, #fff 100%);
  overflow: hidden;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: center;
  width: min(var(--container), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
  padding: 48px 0 72px;
  position: relative;
  z-index: 1;
}
.hero__lead { font-size: 18px; max-width: 36ch; }
.hero__lead a { text-decoration: underline; }
.hero__visual img {
  width: 100%;
  max-height: 520px;
  object-fit: contain;
  margin-inline: auto;
}
.hero-carousel { position: relative; }
.hero-carousel__slide { display: none; }
.hero-carousel__slide.is-active { display: grid; }
.hero-carousel__arrows {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 8px;
  z-index: 2;
}
.hero-carousel__arrows button {
  pointer-events: auto;
  width: 48px; height: 48px;
  border: 0; background: transparent;
  font-size: 28px; cursor: pointer; color: var(--ink);
}
.hero-carousel__dots {
  position: absolute;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 2;
}
.hero-carousel__dots button {
  width: 10px; height: 10px;
  border-radius: 50%;
  border: 1.5px solid var(--ink);
  background: transparent;
  padding: 0;
  cursor: pointer;
}
.hero-carousel__dots button.is-active { background: var(--ink); }
.hero--page {
  min-height: min(920px, calc(100vh - var(--header-h)));
}
.hero-bullets {
  display: grid;
  gap: 12px;
  margin: 20px 0 28px;
  max-width: 42ch;
}
.hero-bullets li {
  font-size: 15px;
  color: var(--muted);
  padding-left: 14px;
  border-left: 2px solid var(--line-strong);
}
.hero-bullets strong {
  display: block;
  color: var(--ink);
  font-weight: 600;
  margin-bottom: 2px;
}

/* Full-bleed image band (service pages) */
.media-band {
  width: 100%;
  background: var(--bg-soft);
  border-block: 1px solid var(--line);
}
.media-band img {
  width: 100%;
  max-height: 660px;
  object-fit: cover;
  margin-inline: auto;
}

/* Equipment cards */
.equip-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.equip-card .card__img { aspect-ratio: 4 / 3; }

/* Marquee */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 28px 0;
}
.marquee__track {
  display: flex;
  gap: 48px;
  width: max-content;
  animation: marquee 28s linear infinite;
  align-items: center;
}
.marquee__track img { height: 28px; width: auto; opacity: 0.75; filter: grayscale(1); }
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Cases */
.case-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}
.case-filters button {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius-pill);
  padding: 8px 16px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
}
.case-filters button.is-active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}
.case-card__cat {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 8px;
  color: var(--muted);
}
.case-card__img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }

/* Process */
.process {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.process__item {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 24px;
}
.process__n {
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 10px;
}

/* Forms */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 12px;
  align-items: end;
}
.field label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 6px;
}
.field input,
.field textarea {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  padding: 10px 0;
  background: transparent;
  border-radius: 0;
}
.field textarea { min-height: 100px; resize: vertical; }
.form-note { font-size: 13px; color: var(--muted); margin-top: 12px; }
.form-note a { text-decoration: underline; }
.quote-form {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 28px;
}
.quote-form .form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.quote-form .field--full { grid-column: 1 / -1; }
.file-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border: 1px dashed var(--line-strong);
  border-radius: 12px;
  cursor: pointer;
  font-size: 14px;
}
.consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 13px;
  color: var(--muted);
  margin: 16px 0;
}
.consent input { margin-top: 4px; }

/* Footer / contacts */
.contacts {
  background: var(--bg-soft);
  padding: var(--section-y) 0;
}
.contacts__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: start;
}
.contacts__map {
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--line);
}
.contacts__map img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.contacts__list { display: grid; gap: 12px; }
.contacts__list a { font-weight: 500; }
.legal-mini { font-size: 13px; color: var(--muted); margin-top: 16px; }

/* FAB */
.fab {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 10px;
}
.fab__tip {
  background: #2a2a2a;
  color: #fff;
  font-size: 13px;
  padding: 10px 14px;
  border-radius: 10px;
  max-width: 200px;
}
.fab__btn {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--fab);
  color: #fff;
  border: 0;
  cursor: pointer;
  font-size: 22px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0,0,0,0.45);
}
.modal.is-open { display: flex; }
.modal__panel {
  background: #fff;
  border-radius: var(--radius-card);
  padding: 28px;
  width: min(420px, 100%);
  position: relative;
}
.modal__close {
  position: absolute;
  top: 12px; right: 12px;
  border: 0; background: transparent;
  font-size: 24px; cursor: pointer;
}

/* Accordion */
.accordion details {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px 20px;
  margin-bottom: 12px;
}
.accordion summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}
.accordion summary::-webkit-details-marker { display: none; }
.accordion details[open] summary { margin-bottom: 10px; }
.accordion summary::after {
  content: "+";
  float: right;
  font-weight: 400;
  color: var(--muted);
}
.accordion details[open] summary::after { content: "−"; }
.accordion__body p { margin-bottom: 0.75em; }
.accordion__body p:last-child { margin-bottom: 0; }

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .marquee__track { animation: none; }
}

/* Skeleton placeholders (Step 4) */
.skel-note {
  font-size: 13px;
  color: var(--muted);
  border-left: 3px solid var(--line-strong);
  padding-left: 12px;
  margin-top: 8px;
}

/* Service cards home */
.service-card {
  position: relative;
  min-height: 320px;
  border-radius: var(--radius-card);
  border: 1px solid var(--line);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
  background: var(--bg-soft);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-pill);
  opacity: 1;
}
.service-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}
.service-card__content { position: relative; z-index: 1; }
.service-card h3 { text-transform: none; font-size: 28px; }

/* Advantages split */
.adv-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
  align-items: start;
}
.adv-bullets { display: grid; gap: 16px; margin-bottom: 28px; }
.adv-bullets li {
  padding-left: 16px;
  border-left: 2px solid var(--ink);
  color: var(--muted);
  font-size: 15px;
}

/* Media band */
.media-band {
  padding: 0;
  overflow: hidden;
}
.media-band img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
}

/* Hero feature bullets */
.hero-bullets {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 28px 0;
}
.hero-bullets li {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px 18px;
}
.hero-bullets strong {
  display: block;
  margin-bottom: 6px;
  font-size: 15px;
}
.hero-bullets span {
  display: block;
  font-size: 14px;
  color: var(--muted);
}

/* Equip cards */
.equip-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.equip-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-card) var(--radius-card) 0 0;
}

/* Case article */
.article {
  padding: 64px 0 80px;
}
.article__hero {
  max-width: 72ch;
  margin-bottom: 40px;
}
.article__cover {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border-radius: var(--radius-card);
  margin: 24px 0 40px;
  border: 1px solid var(--line);
}
.article h2 {
  text-transform: none;
  font-size: 24px;
  margin-top: 32px;
}
.article ul {
  list-style: disc;
  padding-left: 1.2em;
  color: var(--muted);
}
.article ul li { margin-bottom: 8px; }

.promo-box {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 40px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  align-items: center;
  background: var(--bg-soft);
}

@media (max-width: 768px) {
  .hero-bullets,
  .equip-grid,
  .promo-box { grid-template-columns: 1fr; }
}


@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; }
  .adv-layout { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr 1fr; }
  .contacts__grid { grid-template-columns: 1fr; }
  .header-contacts__text { display: none; }
}

@media (max-width: 768px) {
  .nav, .header-contacts .socials, .header-contacts .btn { display: none; }
  .burger { display: inline-flex; margin-left: auto; }
  .grid-3, .grid-2, .grid-4, .equip-grid { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .form-row, .quote-form .form-grid { grid-template-columns: 1fr; }
  .fab__tip { display: none; }
  .hero { min-height: auto; }
}