/* ==========================================================================
   VIDEKOM PLIUS TOV — swiss-grid
   Одна акцентная шина (высоковольтный жёлтый) на графите и оксфордском синем.
   ========================================================================== */

:root {
  --bg: #f3f4f6;
  --bg-alt: #e6e8ec;
  --bg-deep: #101c33;
  --ink: #1a1e24;
  --ink-soft: #5c656e;
  --ink-invert: #f4f6f8;
  --accent: #7a5e00;
  --accent-soft: #f4e7b0;
  --signal: #f0c400;
  --line: #c5cad1;
  --font-display: "IBM Plex Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-body: "IBM Plex Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --tracking-display: -0.034em;
  --radius: 0;
  --radius-lg: 0;
  --shadow: none;
  --container: 1140px;
}

section[id] { scroll-margin-top: 5.2rem; }

.site-header {
  background: var(--bg);
  border-top: 3px solid var(--signal);
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-header__brand img { width: 36px; height: 36px; }

.nav a {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 1;
}

.nav-inquiry {
  padding: 0.55em 0.9em;
  color: var(--ink);
}

.btn--primary {
  background: var(--signal);
  color: var(--ink);
}

.btn--primary:hover {
  background: color-mix(in srgb, var(--signal) 78%, var(--ink));
  color: var(--ink);
}

.hero.section { padding-top: 0; padding-bottom: 0; }

.hero__grid {
  display: grid;
  gap: var(--gap);
}

.hero__copy { padding-block: clamp(2.2rem, 1.2rem + 4vw, 5.5rem); }

.hero h1 {
  margin-top: 0.65rem;
  border-left: 4px solid var(--signal);
  padding-left: 0.75rem;
}

.hero .lede { margin-top: 1.1rem; max-width: 38rem; }

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.6rem;
}

.hero__meta {
  display: grid;
  gap: 1rem;
  margin-top: 2.2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.hero__meta dt,
.waybill dt,
.spec dt,
.contact-list span:first-child {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero__meta dd { font-weight: 600; margin: 0.2rem 0 0; }

.hero__figure img,
.about__figure img,
.plant__figure img,
.mosaic img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.hero__figure figcaption,
.about__figure figcaption,
.plant__figure figcaption,
.mosaic figcaption {
  margin-top: 0.45rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.about__grid,
.plant__grid,
.territory__grid,
.contact__grid {
  display: grid;
  gap: calc(var(--gap) * 1.4);
  align-items: start;
}

.about__grid h2,
.plant__grid h2,
.territory__grid h2,
#services h2,
#method h2,
#gallery h2,
.zone-desk h2 { margin-top: 0.45rem; }

.about__grid p,
.plant__grid p { max-width: 40rem; }

.spec {
  display: grid;
  gap: var(--gap);
  margin-top: clamp(2rem, 4vw, 3.5rem);
  border-top: 1px solid var(--line);
}

.spec article { padding-top: 1.25rem; }

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

.spec dl { display: grid; gap: 1rem; }

.spec dd { margin: 0.25rem 0 0; }

.lines {
  list-style: none;
  padding: 0;
  margin-top: 1.5rem;
}

.lines li {
  display: grid;
  gap: 0.45rem;
  padding: 1.35rem 0;
  border-top: 1px solid var(--line);
}

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

.lines__idx {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
  color: var(--accent);
}

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

.steps {
  display: grid;
  gap: var(--gap);
  margin-top: 1.6rem;
}

.steps article {
  border-top: 3px solid var(--signal);
  padding-top: 0.9rem;
}

.steps__n {
  font-size: var(--step-3);
  font-weight: 700;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.steps h3 { font-size: var(--step-1); margin: 0.45rem 0 0.4rem; }

.mosaic {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.waybill { display: grid; }

.waybill div {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 0.75rem;
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
  align-items: baseline;
}

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

.waybill dd { margin: 0; font-weight: 600; }

.zone-desk {
  background: var(--bg-deep);
  color: var(--ink-invert);
}

.zone-desk .eyebrow { color: var(--signal); }

.zone-desk .lede,
.zone-desk .terminal__intro {
  color: color-mix(in srgb, var(--ink-invert) 78%, transparent);
  max-width: 46rem;
}

.zone-desk--form { padding-top: clamp(1rem, 2vw, 2rem); }

.terminal__intro { margin-top: 0.8rem; }

.terminal__layout {
  display: grid;
  gap: var(--gap);
  margin-top: 1.8rem;
}

.tumblers {
  display: grid;
  align-content: start;
  border-top: 1px solid color-mix(in srgb, var(--ink-invert) 28%, transparent);
}

.tumblers button {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  width: 100%;
  padding: 0.85rem 0;
  border-bottom: 1px solid color-mix(in srgb, var(--ink-invert) 28%, transparent);
  color: var(--ink-invert);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: left;
}

.tumblers button[aria-checked="true"] { color: var(--signal); }

.tumbler__lever {
  width: 16px;
  height: 32px;
  border: 1px solid var(--signal);
  position: relative;
  flex: none;
}

.tumbler__lever::after {
  content: "";
  position: absolute;
  left: 2px;
  right: 2px;
  height: 12px;
  top: 16px;
  background: color-mix(in srgb, var(--ink-invert) 70%, transparent);
  transition: top 0.2s var(--ease), background-color 0.2s var(--ease);
}

.tumblers button[aria-checked="true"] .tumbler__lever::after {
  top: 2px;
  background: var(--signal);
}

.iso { width: 100%; height: auto; display: block; }

.iso [data-node] { opacity: 0.38; transition: opacity 0.35s var(--ease); }

.iso polygon {
  stroke: var(--bg-deep);
  stroke-width: 0.7;
  stroke-linejoin: round;
}

.iso-top { fill: color-mix(in srgb, var(--ink-invert) 18%, var(--bg-deep)); }
.iso-side { fill: color-mix(in srgb, var(--ink-invert) 8%, var(--bg-deep)); }
.iso-front { fill: color-mix(in srgb, var(--ink-invert) 30%, var(--bg-deep)); }

[data-terminal][data-mode="fmcg"] [data-node="racks"],
[data-terminal][data-mode="fmcg"] [data-node="dock"],
[data-terminal][data-mode="fmcg"] [data-node="cold"],
[data-terminal][data-mode="retail"] [data-node="floor"],
[data-terminal][data-mode="retail"] [data-node="cold"],
[data-terminal][data-mode="appliances"] [data-node="appliances"],
[data-terminal][data-mode="appliances"] [data-node="cold"],
[data-terminal][data-mode="electrical"] [data-node="substation"],
[data-terminal][data-mode="electrical"] [data-node="switchgear"],
[data-terminal][data-mode="electrical"] [data-node="cold"] {
  opacity: 1;
}

[data-terminal][data-mode="fmcg"] [data-node="racks"] .iso-top,
[data-terminal][data-mode="fmcg"] [data-node="dock"] .iso-top,
[data-terminal][data-mode="fmcg"] [data-node="cold"] .iso-top,
[data-terminal][data-mode="retail"] [data-node="floor"] .iso-top,
[data-terminal][data-mode="retail"] [data-node="cold"] .iso-top,
[data-terminal][data-mode="appliances"] [data-node="appliances"] .iso-top,
[data-terminal][data-mode="appliances"] [data-node="cold"] .iso-top,
[data-terminal][data-mode="electrical"] [data-node="substation"] .iso-top,
[data-terminal][data-mode="electrical"] [data-node="switchgear"] .iso-top,
[data-terminal][data-mode="electrical"] [data-node="cold"] .iso-top {
  fill: var(--signal);
}

[data-terminal][data-mode="fmcg"] [data-node="racks"] .iso-front,
[data-terminal][data-mode="fmcg"] [data-node="dock"] .iso-front,
[data-terminal][data-mode="fmcg"] [data-node="cold"] .iso-front,
[data-terminal][data-mode="retail"] [data-node="floor"] .iso-front,
[data-terminal][data-mode="retail"] [data-node="cold"] .iso-front,
[data-terminal][data-mode="appliances"] [data-node="appliances"] .iso-front,
[data-terminal][data-mode="appliances"] [data-node="cold"] .iso-front,
[data-terminal][data-mode="electrical"] [data-node="substation"] .iso-front,
[data-terminal][data-mode="electrical"] [data-node="switchgear"] .iso-front,
[data-terminal][data-mode="electrical"] [data-node="cold"] .iso-front {
  fill: color-mix(in srgb, var(--signal) 62%, var(--ink));
}

[data-terminal][data-mode="fmcg"] [data-node="racks"] .iso-side,
[data-terminal][data-mode="fmcg"] [data-node="dock"] .iso-side,
[data-terminal][data-mode="fmcg"] [data-node="cold"] .iso-side,
[data-terminal][data-mode="retail"] [data-node="floor"] .iso-side,
[data-terminal][data-mode="retail"] [data-node="cold"] .iso-side,
[data-terminal][data-mode="appliances"] [data-node="appliances"] .iso-side,
[data-terminal][data-mode="appliances"] [data-node="cold"] .iso-side,
[data-terminal][data-mode="electrical"] [data-node="substation"] .iso-side,
[data-terminal][data-mode="electrical"] [data-node="switchgear"] .iso-side,
[data-terminal][data-mode="electrical"] [data-node="cold"] .iso-side {
  fill: color-mix(in srgb, var(--signal) 38%, var(--ink));
}

.node-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.9rem;
  list-style: none;
  padding: 0.4rem 0 0;
  margin: 0;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.node-legend li { opacity: 0.4; }

[data-terminal][data-mode="fmcg"] [data-legend="racks"],
[data-terminal][data-mode="fmcg"] [data-legend="dock"],
[data-terminal][data-mode="fmcg"] [data-legend="cold"],
[data-terminal][data-mode="retail"] [data-legend="floor"],
[data-terminal][data-mode="retail"] [data-legend="cold"],
[data-terminal][data-mode="appliances"] [data-legend="appliances"],
[data-terminal][data-mode="appliances"] [data-legend="cold"],
[data-terminal][data-mode="electrical"] [data-legend="substation"],
[data-terminal][data-mode="electrical"] [data-legend="switchgear"],
[data-terminal][data-mode="electrical"] [data-legend="cold"] {
  opacity: 1;
  color: var(--signal);
}

.readouts { display: grid; gap: 0.75rem; }

.readouts article {
  border-top: 1px solid color-mix(in srgb, var(--ink-invert) 28%, transparent);
  padding-top: 0.75rem;
}

.readouts h3 {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--signal);
}

.readouts p {
  margin-top: 0.4rem;
  font-size: var(--step--1);
  color: color-mix(in srgb, var(--ink-invert) 88%, transparent);
}

.dials {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid color-mix(in srgb, var(--ink-invert) 28%, transparent);
}

.dial label {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.dial output { color: var(--signal); font-variant-numeric: tabular-nums; }

.dial input[type="range"] {
  width: 100%;
  margin-top: 0.45rem;
  accent-color: var(--signal);
}

.ticket {
  margin: 1rem 0 1.1rem;
  padding: 0.8rem 0;
  border-top: 1px solid var(--signal);
  border-bottom: 1px solid var(--signal);
  font-size: var(--step--1);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.contact-list {
  list-style: none;
  padding: 0;
  margin-top: 1.4rem;
  display: grid;
  gap: 0.9rem;
}

.contact-list li { display: grid; gap: 0.15rem; }

.contact-list a { color: var(--signal); font-weight: 600; text-decoration: none; }

.zone-desk .field input,
.zone-desk .field textarea {
  color: var(--ink);
  background: var(--bg);
  border-color: color-mix(in srgb, var(--ink-invert) 35%, transparent);
}

.zone-desk .form-status[data-state="ok"] { color: var(--signal); }

.zone-desk .btn--ghost:hover {
  background: var(--signal);
  color: var(--ink);
  border-color: var(--signal);
}

form[data-contact-form] { display: grid; gap: 0.9rem; align-content: start; }

.site-footer {
  background: var(--bg-deep);
  color: var(--ink-invert);
  border-top: 1px solid color-mix(in srgb, var(--ink-invert) 18%, transparent);
}

.footer__grid {
  display: grid;
  gap: var(--gap);
}

.footer__note {
  margin-top: 0.9rem;
  max-width: 26rem;
  color: color-mix(in srgb, var(--ink-invert) 72%, transparent);
  font-size: var(--step--1);
}

.site-footer .eyebrow { color: var(--signal); }

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

.site-footer nav {
  display: grid;
  gap: 0.35rem;
  align-content: start;
}

.site-footer nav a { font-size: var(--step--1); }

.site-footer__bottom { color: color-mix(in srgb, var(--ink-invert) 60%, transparent); }

@media (min-width: 500px) {
  .hero__meta { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 720px) {
  .steps { grid-template-columns: 1fr 1fr; }
  .mosaic { grid-template-columns: 1fr 1fr; }
  .dials { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
  .footer__grid { grid-template-columns: 1.3fr 1fr 0.8fr; }
}

@media (min-width: 800px) {
  .lines li {
    grid-template-columns: 3.2rem minmax(11rem, 16rem) 1fr;
    gap: 1.5rem;
    align-items: start;
  }
  .spec { grid-template-columns: 1fr 1fr; }
  .territory__grid,
  .contact__grid { grid-template-columns: 1fr 1fr; gap: 3rem; }
  .terminal__layout { grid-template-columns: 16rem 1fr; }
  .readouts { grid-column: 1 / -1; grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1000px) {
  .about__grid { grid-template-columns: 1.15fr 0.85fr; }
  .plant__grid { grid-template-columns: 0.92fr 1.08fr; }
  .hero__grid {
    grid-template-columns: 5fr 7fr;
    gap: 2.5rem;
    align-items: stretch;
  }
  .hero__figure {
    display: flex;
    flex-direction: column;
    padding-bottom: 1.2rem;
    min-height: 100%;
  }
  .hero__figure img {
    flex: 1 1 auto;
    width: 100%;
    height: 100%;
    min-height: 28rem;
    aspect-ratio: auto;
    object-fit: cover;
  }
  .steps { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 1100px) {
  .terminal__layout { grid-template-columns: 15rem minmax(0, 1.25fr) minmax(16rem, 0.85fr); }
  .readouts { grid-column: auto; grid-template-columns: 1fr; }
}