/* ============================================================
   VERTEX — текстильное производство
   Палитра: тёплый графит цеха + небелёный хлопок + печатная лента
   Шрифты: Unbounded (дисплей) · Golos Text (текст) · JetBrains Mono (данные)
   ============================================================ */

:root {
  --bg:        #131110;   /* тёплый графит цеха */
  --bg-raise:  #1c1917;   /* корпус машины */
  --bg-deep:   #0d0c0b;   /* тень под валом */
  --line:      #2b2723;   /* линия шва */
  --ink:       #f2efe9;   /* небелёный хлопок */
  --ink-dim:   #a39c93;   /* сталь, вторичный текст */
  --ink-faint: #8a837a;   /* подписи (AA на обоих фонах) */
  --accent:    #f2efe9;   /* акцент = белый: фирменный стиль чёрно-белый */

  --font-display: "Unbounded", "Arial Black", sans-serif;
  --font-body: "Golos Text", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Consolas", monospace;

  --container: 1180px;
  --radius: 4px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, video { max-width: 100%; display: block; }

a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

::selection { background: var(--ink); color: var(--bg-deep); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 28px; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--ink); color: var(--bg); padding: 10px 18px;
  font-family: var(--font-mono); font-size: 14px; text-decoration: none;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---------- типографика ---------- */

h1, h2 {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .01em;
  line-height: 1.08;
  text-wrap: balance;
}

h1 { font-size: clamp(30px, 5.4vw, 66px); }
h2 { font-size: clamp(22px, 3vw, 38px); margin-bottom: 18px; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .22em;
  color: var(--ink-dim);
  margin-bottom: 16px;
}

.section-sub {
  color: var(--ink-dim);
  max-width: 560px;
  margin-bottom: 8px;
}

/* ---------- линия-сигнатура: строгая белая ---------- */

.band {
  height: 3px;
  background: var(--ink);
}

.band-hero {
  width: 140px;
  margin: 28px 0 26px;
  transform-origin: left center;
  animation: band-print 1.1s cubic-bezier(.6,0,.2,1) .15s backwards;
}

@keyframes band-print {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

/* ---------- кнопки ---------- */

.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 14.5px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .1em;
  text-decoration: none;
  padding: 15px 28px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color .18s, color .18s, border-color .18s;
}

.btn-solid {
  background: var(--ink);
  color: var(--bg-deep);
  border: 1px solid var(--ink);
}
.btn-solid:hover,
.btn-solid:focus-visible { background: #ffffff; border-color: #ffffff; }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
.btn-ghost:hover { border-color: var(--ink-dim); }

/* ---------- навигация ---------- */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(19, 17, 16, .82);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s;
}
.nav.is-scrolled { border-bottom-color: var(--line); }

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
  height: 68px;
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-logo { flex-shrink: 0; display: flex; }
.nav-logo img { height: 15px; width: auto; }

.nav-links {
  display: flex;
  gap: 26px;
  margin-left: auto;
}
.nav-links a {
  font-size: 15px;
  color: var(--ink-dim);
  text-decoration: none;
  transition: color .15s;
}
.nav-links a:hover { color: var(--ink); }

.nav-tel {
  font-family: var(--font-mono);
  font-size: 14.5px;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}
.nav-tel:hover { color: var(--accent); }

.nav-burger {
  display: none;
  background: none;
  border: none;
  width: 40px; height: 40px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  cursor: pointer;
}
.nav-burger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--ink);
  transition: transform .2s, opacity .2s;
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 130px 0 0;
  isolation: isolate;
}

.hero-media {
  position: absolute; inset: 0;
  z-index: -1;
  overflow: hidden;
}
.hero-media img,
.hero-media video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
.hero-media video { opacity: 0; transition: opacity .8s; }
.hero-media video.is-playing { opacity: 1; }

.hero-shade {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(19,17,16,.55) 0%, rgba(19,17,16,.72) 55%, var(--bg) 100%),
    linear-gradient(90deg, rgba(13,12,11,.6) 0%, transparent 60%);
}

.hero-content {
  max-width: var(--container);
  width: 100%;
  margin: 0 auto;
  padding: 0 28px;
}

.hero-sub {
  max-width: 520px;
  font-size: 18.5px;
  color: var(--ink-dim);
  margin-bottom: 34px;
}

.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-meta {
  max-width: var(--container);
  width: 100%;
  margin: 72px auto 0;
  padding: 0 28px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  list-style: none;
}
/* линия по ширине контента, а не контейнера с полями */
.hero-meta::before {
  content: "";
  grid-column: 1 / -1;
  height: 1px;
  background: var(--line);
}
.hero-meta > li {
  padding: 22px 18px 26px 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hero-meta .num {
  font-family: var(--font-mono);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 500;
}
.hero-meta span {
  font-size: 14px;
  color: var(--ink-faint);
}

/* ---------- секции ---------- */

.section { padding: 108px 0; }
.section-alt {
  background: var(--bg-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

/* ---------- услуги ---------- */

.services-grid {
  margin-top: 46px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.card {
  display: grid;
  grid-template-columns: 190px 1fr;
  background: var(--bg-raise);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  position: relative;
  transition: border-color .2s, transform .2s;
}
.card::before {
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--ink);
  opacity: 0;
  transition: opacity .2s;
}
.card:hover { border-color: #3a3530; transform: translateY(-2px); }
.card:hover::before { opacity: 1; }

.card-img { overflow: hidden; }
.card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 38%;
  transition: transform .4s ease;
}
.card:hover .card-img img { transform: scale(1.04); }

.card-body {
  padding: 24px 26px 22px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.card-eyebrow {
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .16em;
  color: var(--ink-faint);
}

.card-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 19px;
  text-transform: uppercase;
}

.card-text {
  font-size: 15px;
  color: var(--ink-dim);
  flex-grow: 1;
}

.card-price {
  font-family: var(--font-mono);
  font-size: 15.5px;
  font-weight: 500;
  color: var(--ink);
}

/* ---------- прайс ---------- */

.price-block {
  margin-top: 70px;
  padding-top: 44px;
  border-top: 1px solid var(--line);
}
.price-block:first-of-type { margin-top: 54px; }

.price-block h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(19px, 2.2vw, 26px);
  text-transform: uppercase;
  margin-bottom: 30px;
}

.price-cols {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px 44px;
}
.price-cols.cols-3 { grid-template-columns: repeat(3, 1fr); }

.price-table {
  display: flex;
  flex-direction: column;
}
.price-table h4 {
  font-size: 16.5px;
  font-weight: 600;
  margin-bottom: 4px;
}

.pt-note {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-faint);
  margin-bottom: 16px;
}

.tiers { list-style: none; }

.tiers li {
  display: grid;
  grid-template-columns: 118px 1fr 84px;
  align-items: center;
  gap: 14px;
  padding: 10px 4px;
  border-bottom: 1px solid var(--line);
  transition: background-color .15s;
}
.tiers li:hover { background: rgba(242,239,233,.03); }

.t-label {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--ink-dim);
  white-space: nowrap;
}

.t-bar {
  height: 4px;
  width: max(26px, var(--w, 20%));
  background: var(--ink-faint);
  border-radius: 2px;
  opacity: .55;
}
.tiers li:hover .t-bar {
  background: var(--ink);
  opacity: 1;
}

.t-price {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  text-align: right;
  white-space: nowrap;
}

.pt-foot {
  margin-top: auto;
  padding-top: 14px;
  font-size: 14px;
  color: var(--ink-faint);
}

.price-notes {
  margin-top: 26px;
  padding: 18px 22px;
  background: var(--bg-raise);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.price-notes p {
  font-size: 14.5px;
  color: var(--ink-dim);
  padding-left: 20px;
  position: relative;
}
.price-notes p::before {
  content: "";
  position: absolute;
  left: 0; top: .5em;
  width: 8px; height: 8px;
  border-radius: 2px;
  background: var(--ink-dim);
}

.price-aside {
  display: flex;
  flex-direction: column;
  gap: 14px;
  justify-content: center;
  color: var(--ink-dim);
  font-size: 15.5px;
}
.price-aside .btn { align-self: flex-start; margin-top: 6px; }

/* ---------- этапы ---------- */

.steps {
  list-style: none;
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 30px;
  position: relative;
}
/* линия процесса — от первого кружка до последнего */
.steps::before {
  content: "";
  position: absolute;
  top: 19px; left: 20px; right: calc(20% - 44px);
  height: 1px;
  background: var(--ink-faint);
  opacity: .6;
}

.steps li { position: relative; padding-top: 58px; }

.step-num {
  position: absolute;
  top: 0; left: 0;
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 50%;
}

.steps h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 15.5px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.steps p {
  font-size: 14.5px;
  color: var(--ink-dim);
}

/* ---------- условия ---------- */

.terms-grid {
  margin-top: 44px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
  align-items: start;
}

.terms-box {
  background: var(--bg-raise);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 32px;
}

.terms-box h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 17px;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.terms-box p {
  color: var(--ink-dim);
  font-size: 15.5px;
  margin-bottom: 14px;
}

.terms-box ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.terms-box li {
  font-size: 15.5px;
  color: var(--ink-dim);
  padding-left: 20px;
  position: relative;
}
.terms-box li::before {
  content: "";
  position: absolute;
  left: 0; top: .55em;
  width: 8px; height: 8px;
  border-radius: 2px;
  background: var(--ink-dim);
}

/* ---------- контакты ---------- */

.contacts-grid {
  margin-top: 44px;
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 60px;
}

.contacts-info { display: flex; flex-direction: column; gap: 10px; }

.c-tel {
  font-family: var(--font-mono);
  font-size: clamp(21px, 2.4vw, 28px);
  font-weight: 500;
  text-decoration: none;
}
.c-tel:hover { color: var(--accent); }

.c-mail {
  font-family: var(--font-mono);
  font-size: 17px;
  color: var(--ink-dim);
  text-decoration: none;
}
.c-mail:hover { color: var(--ink); }

.c-list {
  margin-top: 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.c-list dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .16em;
  color: var(--ink-faint);
  margin-bottom: 3px;
}
.c-list dd { font-size: 16.5px; }

.c-req { margin-top: 22px; }
.c-req summary {
  font-family: var(--font-mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--ink-faint);
  cursor: pointer;
}
.c-req summary:hover { color: var(--ink-dim); }
.c-req p {
  margin-top: 12px;
  font-size: 14.5px;
  color: var(--ink-dim);
  line-height: 1.8;
}

/* форма */

.contact-form {
  background: var(--bg-raise);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 36px 30px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.contact-form h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 18px;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.f-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.contact-form label > span {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--ink-faint);
}

.contact-form input,
.contact-form textarea {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  padding: 13px 15px;
  transition: border-color .15s;
  width: 100%;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.contact-form ::placeholder { color: var(--ink-faint); }

.contact-form textarea { resize: vertical; min-height: 84px; }

.contact-form .btn { align-self: flex-start; }

.f-trap {
  position: absolute !important;
  left: -9999px !important;
  width: 1px; height: 1px;
  opacity: 0;
}

.f-status { font-size: 15px; min-height: 1.4em; }
.f-status.ok { color: var(--ink); }
.f-status.err { color: #d99a9a; }

.f-note {
  font-size: 13.5px;
  color: var(--ink-faint);
}

/* ---------- футер ---------- */

.footer {
  border-top: 1px solid var(--line);
  padding: 40px 0 46px;
}

.footer-inner {
  display: flex;
  align-items: center;
  gap: 26px;
  flex-wrap: wrap;
}
.footer-inner img { height: 13px; width: auto; opacity: .7; }
.footer-inner p {
  font-size: 13.5px;
  color: var(--ink-faint);
  text-wrap: balance;
}
.footer-inner p:last-child { margin-left: auto; }

/* ---------- появление при скролле ---------- */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- адаптив ---------- */

@media (max-width: 1024px) {
  .services-grid { grid-template-columns: 1fr; }
  .price-cols.cols-3 { grid-template-columns: 1fr; gap: 34px; }
  .steps { grid-template-columns: repeat(3, 1fr); row-gap: 44px; }
  .steps::before { display: none; }
  .contacts-grid { grid-template-columns: 1fr; gap: 44px; }
}

@media (max-width: 768px) {
  body { font-size: 16px; }
  .section { padding: 76px 0; }

  .nav-links {
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: var(--bg-deep);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    gap: 0;
    padding: 10px 28px 18px;
    display: none;
  }
  .nav-links.is-open { display: flex; }
  .nav-links a { padding: 12px 0; font-size: 17px; }
  .nav-tel { margin-left: auto; }
  .nav-burger { display: flex; }
  .nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .hero { min-height: 78vh; padding-top: 108px; }
  .hero-meta { grid-template-columns: repeat(2, 1fr); margin-top: 52px; }
  .hero-meta > li { border-bottom: 1px solid var(--line); }

  .price-cols { grid-template-columns: 1fr; gap: 34px; }
  .tiers li { grid-template-columns: 112px 1fr 78px; gap: 12px; }
  .t-label { font-size: 12.5px; }

  .card { grid-template-columns: 1fr; }
  .card-img { height: 170px; }

  .steps { grid-template-columns: 1fr 1fr; }

  .terms-grid { grid-template-columns: 1fr; }

  .f-row { grid-template-columns: 1fr; }
  .contact-form { padding: 26px 22px; }

  .footer-inner p:last-child { margin-left: 0; }
}

@media (max-width: 460px) {
  .steps { grid-template-columns: 1fr; row-gap: 36px; }
  /* вертикальный коннектор между шагами */
  .steps li:not(:last-child)::after {
    content: "";
    position: absolute;
    left: 19px; top: 48px;
    width: 1px; height: calc(100% - 12px);
    background: var(--ink-faint);
    opacity: .5;
  }
  .tiers li { grid-template-columns: 100px 1fr 74px; }
  .t-label { font-size: 12px; }
  .hero-cta .btn { width: 100%; text-align: center; }
}

/* ---------- reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .band-hero { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .card, .card-img img, .btn-solid::after { transition: none; }
  .hero-media video { display: none; }
}