/* ==========================================================================
   TEKHNOKOM TSENTR — swiss-grid
   One accent, grotesque, left edge, hairline rules. No cards.
   ========================================================================== */

:root {
  --bg: #f3f4f1;
  --bg-alt: #e7e8e3;
  --bg-deep: #141618;
  --ink: #121418;
  --ink-soft: #5c6168;
  --ink-invert: #f3f4f1;
  --accent: #c2410c;
  --accent-soft: #f4e7de;
  --line: #d0d2cb;
  --font-display: "IBM Plex Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-body: "IBM Plex Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --tracking-display: -0.035em;
  --radius: 0px;
  --radius-lg: 0px;
  --container: 1180px;
  --shadow: none;
}

.site-header {
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.site-header__brand {
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: var(--step--1);
}

.nav a {
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.72rem;
  font-weight: 500;
  opacity: 1;
}

.nav a[aria-current="page"],
.nav a:hover {
  color: var(--accent);
}

/* --- HERO --- */
.hero {
  border-bottom: 1px solid var(--line);
}

.hero__layout {
  display: grid;
}

.hero__copy {
  padding: clamp(2.25rem, 5vw, 4.5rem) var(--gap) clamp(1.75rem, 4vw, 3rem);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 1.35rem;
  max-width: 40rem;
}

.hero h1 {
  font-weight: 600;
  letter-spacing: -0.04em;
  max-width: 16ch;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.hero__figure {
  margin: 0;
  position: relative;
  min-height: 16rem;
  background: var(--bg-alt);
}

.hero__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 16rem;
}

.hero__figure figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 0.55rem 0.9rem;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-invert);
  background: color-mix(in srgb, var(--bg-deep) 72%, transparent);
}

.hero__index {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
}

.hero__index li {
  padding: 0.9rem var(--gap);
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  font-size: var(--step--1);
  display: grid;
  gap: 0.2rem;
}

.hero__index li:nth-child(odd) {
  border-right: 1px solid var(--line);
}

.hero__index span {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-size: 0.72rem;
}

/* --- SHARED ROW --- */
.kicker {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.kicker em {
  font-style: normal;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-size: 0.78rem;
}

.section-intro {
  max-width: 38rem;
  margin-bottom: clamp(1.75rem, 3vw, 2.75rem);
}

.section-intro h2 {
  margin-bottom: 0.85rem;
}

/* --- SYNERGY --- */
.synergy__row {
  display: grid;
  gap: 0.65rem 1.5rem;
  padding: 1.65rem 0;
  border-top: 1px solid color-mix(in srgb, var(--ink-invert) 22%, transparent);
}

.synergy__row:last-child {
  border-bottom: 1px solid color-mix(in srgb, var(--ink-invert) 22%, transparent);
}

.synergy__num {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-size: 0.78rem;
}

.synergy__row h3 {
  font-size: var(--step-1);
  font-weight: 600;
}

.section--deep .synergy__row p {
  color: color-mix(in srgb, var(--ink-invert) 78%, transparent);
  max-width: 42rem;
}

/* --- SUPPLY --- */
.supply__grid {
  display: grid;
  gap: var(--gap);
}

.spec {
  border-top: 1px solid var(--line);
  padding-top: 1.25rem;
}

.spec h3 {
  font-size: var(--step-1);
  margin-bottom: 0.65rem;
}

.spec > p {
  margin-bottom: 1.1rem;
  color: var(--ink-soft);
}

.spec dl {
  display: grid;
  margin: 0;
}

.spec dl > div {
  display: grid;
  gap: 0.25rem;
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
}

.spec dt {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.spec dd {
  margin: 0;
  color: var(--ink-soft);
}

.supply__figure {
  margin: 0;
}

.supply__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 16rem;
}

.supply__figure figcaption {
  margin-top: 0.45rem;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}

/* --- SERVICES --- */
.services__lead {
  display: grid;
  gap: var(--gap);
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
  align-items: end;
}

.services__lead p {
  max-width: 36rem;
}

.services__figure {
  margin: 0;
}

.services__figure img {
  width: 100%;
  height: 18rem;
  object-fit: cover;
}

.services__figure figcaption {
  margin-top: 0.45rem;
  font-size: 0.75rem;
  color: var(--ink-soft);
}

.svc {
  display: grid;
  gap: 0.45rem 1.5rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
}

.svc:last-child {
  border-bottom: 1px solid var(--line);
}

.svc__num {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-size: 0.78rem;
}

.svc h3 {
  font-size: var(--step-1);
}

.svc p {
  color: var(--ink-soft);
  max-width: 46rem;
}

/* --- FIELD --- */
.steps {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.steps li {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 0.35rem;
}

.steps strong {
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 600;
}

.steps h3 {
  font-size: var(--step-1);
}

.steps p {
  color: var(--ink-soft);
}

.field__figure {
  margin: clamp(1.5rem, 3vw, 2.25rem) 0 0;
}

.field__figure img {
  width: 100%;
  max-height: 28rem;
  object-fit: cover;
}

.field__figure figcaption {
  margin-top: 0.45rem;
  font-size: 0.75rem;
  color: var(--ink-soft);
}

/* --- COMPANY --- */
.company__grid {
  display: grid;
  gap: var(--gap);
}

.facts {
  list-style: none;
  padding: 0;
  margin-top: 1.5rem;
  display: grid;
  border-top: 1px solid var(--line);
}

.facts li {
  display: grid;
  gap: 0.15rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
}

.facts span {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.company__figure {
  margin: 0;
}

.company__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 16rem;
}

.company__figure figcaption {
  margin-top: 0.45rem;
  font-size: 0.75rem;
  color: var(--ink-soft);
}

/* --- QUESTIONS --- */
.qa {
  display: grid;
  border-top: 1px solid var(--line);
}

.qa article {
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 0.45rem;
}

.qa h3 {
  font-size: var(--step-1);
}

.qa p {
  color: var(--ink-soft);
  max-width: 42rem;
}

/* --- CONTACT --- */
.contact__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3.5rem);
}

.contact__list {
  list-style: none;
  padding: 0;
  margin-top: 1.25rem;
  display: grid;
  gap: 0;
}

.contact__list li {
  padding: 0.8rem 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 0.15rem;
}

.contact__list li:last-child {
  border-bottom: 1px solid var(--line);
}

.contact__list span {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--accent);
}

.contact__list a {
  text-decoration: none;
}

.contact__list a:hover {
  color: var(--accent);
}

.contact__form {
  display: grid;
  gap: 0.9rem;
  align-content: start;
}

.contact__form .btn {
  justify-self: start;
}

/* --- FOOTER --- */
.site-footer {
  background: var(--bg-deep);
  color: var(--ink-invert);
  border-top: none;
}

.footer__grid {
  display: grid;
  gap: 1.75rem;
}

.footer__brand {
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: var(--step--1);
}

.site-footer a {
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--accent);
}

.footer__note {
  margin-top: 0.7rem;
}

.footer__links {
  list-style: none;
  padding: 0;
  margin-top: 0.7rem;
  display: grid;
  gap: 0.35rem;
}

.site-footer .muted {
  color: color-mix(in srgb, var(--ink-invert) 68%, transparent);
}

.site-footer .site-footer__bottom {
  border-top-color: color-mix(in srgb, var(--ink-invert) 18%, transparent);
  color: color-mix(in srgb, var(--ink-invert) 62%, transparent);
}

/* --- BREAKPOINTS --- */
@media (max-width: 767px) {
  .hero__index li:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 768px) {
  .hero__index {
    grid-template-columns: repeat(5, 1fr);
  }

  .hero__index li {
    border-bottom: none;
  }

  .synergy__row,
  .svc {
    grid-template-columns: 4.5rem minmax(9rem, 14rem) minmax(0, 1fr);
    align-items: start;
  }

  .supply__figure {
    grid-column: 1 / -1;
  }

  .supply__figure img {
    max-height: 22rem;
    width: 100%;
  }

  .supply__grid,
  .company__grid,
  .contact__grid,
  .services__lead,
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .services__lead {
    align-items: end;
  }

  .qa {
    grid-template-columns: 1fr 1fr;
    column-gap: var(--gap);
  }

  .qa article:nth-child(odd) {
    padding-right: var(--gap);
  }
}

@media (min-width: 960px) {
  .hero__layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
    min-height: calc(100svh - 4.5rem);
  }

  .hero__copy {
    padding-top: clamp(3rem, 8vh, 6rem);
    padding-bottom: clamp(2rem, 5vh, 3.5rem);
    padding-left: max(var(--gap), calc((100vw - var(--container)) / 2));
    max-width: none;
  }

  .hero__figure,
  .hero__figure img {
    min-height: 100%;
    height: 100%;
  }

  .steps {
    grid-template-columns: repeat(4, 1fr);
  }

  .steps li {
    padding: 0 1.25rem 0 0;
    border-bottom: none;
    border-right: 1px solid var(--line);
    margin-right: 1.25rem;
  }

  .steps li:last-child {
    border-right: none;
    margin-right: 0;
    padding-right: 0;
  }

  .supply__grid {
    grid-template-columns: 1fr 1fr 0.9fr;
  }

  .supply__figure {
    grid-column: auto;
  }

  .supply__figure img {
    max-height: none;
  }

  .company__grid {
    grid-template-columns: 1.15fr 0.85fr;
  }

  .footer__grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
}

@media (min-width: 1440px) {
  .hero h1 {
    font-size: 4.25rem;
  }
}