/* ==========================================================================
   CHERKASKE DSP TOV — tech-precision
   Oxford field, anthracite bands, graphite faces, electric azure, volt lime.
   Chivo Mono on both axes. Sharp cards. Model sits above the tumbler deck.
   ========================================================================== */

:root {
  --bg: #071428;
  --bg-alt: #10161c;
  --bg-deep: #05080e;
  --ink: #e8eef4;
  --ink-soft: #9aabbf;
  --ink-invert: #071018;
  --accent: #d6ff3c;
  --accent-soft: #1c2610;
  --line: #243246;
  --azure: #5cf0ff;
  --graphite: #2a313a;
  --fiber: #c4a27a;
  --face-top: #1c3c52;
  --face-side: #10202c;
  --face-front: #173246;
  --font-display: "Chivo Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --font-body: "Chivo Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --tracking-display: -0.04em;
  --radius: 0px;
  --radius-lg: 0px;
  --shadow: 0 0 0 1px var(--line);
  --container: 1180px;
  color-scheme: dark;
}

::selection { background: var(--accent); color: var(--ink-invert); }

body { background: var(--bg); }

.site-header {
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  border-bottom-color: var(--line);
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}

.logo__mark {
  width: 40px;
  height: 40px;
  flex: none;
}

.logo__mark path {
  fill: none;
  stroke: var(--azure);
  stroke-width: 1.4;
}

.logo__fiber { stroke: var(--fiber); }
.logo__node { fill: var(--accent); stroke: none; }

.logo__word { display: grid; line-height: 1.15; }
.logo__name {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}
.logo__legal {
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.nav { gap: 0.9rem; }
.nav a {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.72;
}

.btn--primary { color: var(--ink-invert); }
.btn--ghost:hover {
  background: var(--azure);
  color: var(--ink-invert);
  border-color: var(--azure);
}

.field select {
  padding: 0.85em 1em;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-deep);
  color: var(--ink);
}

.field input,
.field textarea,
.field select {
  width: 100%;
  min-width: 0;
  background: var(--bg-deep);
  color: var(--ink);
}

.form,
.form__row,
.field { min-width: 0; }

.section__head { max-width: 46rem; margin-bottom: clamp(1.5rem, 3vw, 2.5rem); }
.section__head--narrow { max-width: 40rem; }
.section__head .lede { margin-top: 0.8rem; }

/* --- HERO: type first, photo as a full band under it --- */
.hero { padding-block: clamp(2.2rem, 4vw, 4rem) 0; }

.hero__copy { max-width: 48rem; }

.hero h1 { max-width: 16ch; }

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.hero__frame { margin-top: clamp(1.8rem, 4vw, 3rem); }

.hero__figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
}

.hero__figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, color-mix(in srgb, var(--azure) 28%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in srgb, var(--azure) 22%, transparent) 1px, transparent 1px);
  background-size: 56px 56px;
  mix-blend-mode: screen;
  opacity: 0.35;
}

.hero__ticker {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem 1rem;
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--line);
  background: var(--bg-deep);
  font-size: var(--step--1);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--azure);
}

/* --- MOLECULE MAP --- */
.mol {
  display: grid;
  border: 1px solid var(--line);
  background: var(--line);
  gap: 1px;
}

.mol__cell {
  background: var(--bg);
  padding: clamp(1.1rem, 2vw, 1.6rem);
}

.mol__id {
  font-size: var(--step--1);
  letter-spacing: 0.16em;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.mol__cell h3 { margin-bottom: 0.55rem; }
.mol__cell p:last-child { color: var(--ink-soft); }

/* --- COMPANY --- */
.company {
  display: grid;
  gap: var(--gap);
  align-items: start;
}

.company__copy p + p { margin-top: 1em; }

.company__facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin-top: 1.6rem;
  background: var(--line);
  border: 1px solid var(--line);
}

.company__facts div { background: var(--bg-alt); padding: 0.8rem 0.9rem; }
.company__facts dt {
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--azure);
}
.company__facts dd { font-weight: 600; margin-top: 0.2rem; }

.company__photo { margin: 0; }
.company__photo img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border: 1px solid var(--line);
}
.company__photo figcaption {
  margin-top: 0.55rem;
  color: var(--ink-soft);
  font-size: var(--step--1);
}

/* --- SERVICES as a spec sheet --- */
.spec { display: grid; gap: var(--gap); }

.spec__index {
  display: grid;
  gap: 0.35rem;
  align-content: start;
}

.spec__index a {
  text-decoration: none;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  border-left: 2px solid var(--line);
  padding: 0.35rem 0 0.35rem 0.7rem;
}

.spec__index a:hover { color: var(--accent); border-left-color: var(--accent); }

.spec__list { display: grid; gap: 0; }

.spec__list article {
  padding-block: 1.35rem;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 0.45rem;
}

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

.spec__no {
  color: var(--azure);
  letter-spacing: 0.14em;
  font-size: var(--step--1);
}

.spec__list p:last-child { color: var(--ink-soft); }

/* --- LOT RAIL --- */
.section--lots { background: var(--bg-deep); }

.rail {
  list-style: none;
  display: grid;
  gap: 0;
  padding: 0;
  border-top: 2px solid var(--accent);
}

.rail li {
  padding: 1.2rem 0 0.2rem;
  border-bottom: 1px solid var(--line);
}

.rail__no {
  display: block;
  color: var(--accent);
  letter-spacing: 0.16em;
  font-size: var(--step--1);
  margin-bottom: 0.4rem;
}

.rail p { color: var(--ink-soft); margin-top: 0.45rem; }

/* --- YARDS mosaic --- */
.yards { display: grid; gap: 1rem; }

.yards__item { margin: 0; }

.yards__item img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
}

.yards__item--wide img { aspect-ratio: 16 / 9; }

.yards__item figcaption {
  margin-top: 0.5rem;
  color: var(--ink-soft);
  font-size: var(--step--1);
}

.yards__item strong {
  color: var(--ink);
  font-weight: 600;
}

/* --- COMMAND PANEL --- */
.section--command { background: var(--bg-alt); }

.cmd { position: relative; }

.cmd__input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.cmd__layout { display: grid; gap: 1rem; }

.cmd__stage {
  border: 1px solid var(--line);
  background: var(--bg-deep);
}

.stage__bar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 0.9rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.live { display: none; color: var(--accent); }

.plant { width: 100%; height: auto; }

.plant__ground polygon { fill: var(--graphite); opacity: 0.55; }
.plant__ground path {
  fill: none;
  stroke: var(--azure);
  stroke-width: 0.6;
  opacity: 0.35;
}

.zone .left { fill: var(--face-side); transition: fill 0.25s var(--ease); }
.zone .right { fill: var(--face-front); transition: fill 0.25s var(--ease); }
.zone .top { fill: var(--face-top); transition: fill 0.25s var(--ease); }
.zone .glow { fill: var(--azure); opacity: 0; transition: opacity 0.25s var(--ease); }
.zone .detail,
.zone .vessel {
  fill: none;
  stroke: var(--azure);
  stroke-width: 1.4;
  opacity: 0.7;
}
.zone .vessel { fill: color-mix(in srgb, var(--azure) 25%, var(--bg-deep)); }

.cmd__switches {
  display: grid;
  gap: 0.45rem;
}

.tumbler {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem;
  align-items: center;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--line);
  background: var(--bg);
  cursor: pointer;
}

.tumbler__switch {
  width: 42px;
  height: 22px;
  border: 1px solid var(--line);
  background: var(--bg-deep);
  position: relative;
  flex: none;
}

.tumbler__knob {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: var(--ink-soft);
  transition: transform 0.25s var(--ease), background-color 0.25s var(--ease);
}

.tumbler__text { display: grid; }
.tumbler__name { font-size: 0.78rem; font-weight: 600; }
.tumbler__sub {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.card { display: none; border: 1px solid var(--line); background: var(--bg); padding: 1rem 1.05rem 1.1rem; }
.card--chem { display: block; }

.card__kicker {
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fiber);
  margin-bottom: 0.45rem;
}

.card h3 { margin-bottom: 0.45rem; }
.card > p { color: var(--ink-soft); }

.metrics {
  display: grid;
  gap: 0.55rem;
  margin-top: 1rem;
}

.metrics div {
  display: grid;
  gap: 0.15rem;
  padding-top: 0.45rem;
  border-top: 1px solid var(--line);
}

.metrics dt {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--azure);
}

.metrics dd { font-weight: 600; }

.cmd__note {
  margin-top: 0.9rem;
  color: var(--ink-soft);
  font-size: var(--step--1);
}

#cmd-chem:checked ~ .cmd__layout .live--chem,
#cmd-wood:checked ~ .cmd__layout .live--wood,
#cmd-whole:checked ~ .cmd__layout .live--whole,
#cmd-retail:checked ~ .cmd__layout .live--retail { display: inline; }

#cmd-chem:focus-visible ~ .cmd__layout label[for="cmd-chem"],
#cmd-wood:focus-visible ~ .cmd__layout label[for="cmd-wood"],
#cmd-whole:focus-visible ~ .cmd__layout label[for="cmd-whole"],
#cmd-retail:focus-visible ~ .cmd__layout label[for="cmd-retail"] {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

#cmd-chem:checked ~ .cmd__layout label[for="cmd-chem"],
#cmd-wood:checked ~ .cmd__layout label[for="cmd-wood"],
#cmd-whole:checked ~ .cmd__layout label[for="cmd-whole"],
#cmd-retail:checked ~ .cmd__layout label[for="cmd-retail"] {
  border-color: var(--accent);
}

#cmd-chem:checked ~ .cmd__layout label[for="cmd-chem"] .tumbler__knob,
#cmd-wood:checked ~ .cmd__layout label[for="cmd-wood"] .tumbler__knob,
#cmd-whole:checked ~ .cmd__layout label[for="cmd-whole"] .tumbler__knob,
#cmd-retail:checked ~ .cmd__layout label[for="cmd-retail"] .tumbler__knob {
  transform: translateX(20px);
  background: var(--accent);
}

#cmd-wood:checked ~ .cmd__layout .card--chem,
#cmd-whole:checked ~ .cmd__layout .card--chem,
#cmd-retail:checked ~ .cmd__layout .card--chem { display: none; }

#cmd-wood:checked ~ .cmd__layout .card--wood,
#cmd-whole:checked ~ .cmd__layout .card--whole,
#cmd-retail:checked ~ .cmd__layout .card--retail { display: block; }

#cmd-chem:checked ~ .cmd__layout .zone--chem .top,
#cmd-wood:checked ~ .cmd__layout .zone--wood .top,
#cmd-whole:checked ~ .cmd__layout .zone--whole .top,
#cmd-retail:checked ~ .cmd__layout .zone--retail .top { fill: var(--accent); }

#cmd-chem:checked ~ .cmd__layout .zone--chem .glow,
#cmd-wood:checked ~ .cmd__layout .zone--wood .glow,
#cmd-whole:checked ~ .cmd__layout .zone--whole .glow,
#cmd-retail:checked ~ .cmd__layout .zone--retail .glow { opacity: 0.7; }

#cmd-chem:checked ~ .cmd__layout .zone--chem .left,
#cmd-wood:checked ~ .cmd__layout .zone--wood .left,
#cmd-whole:checked ~ .cmd__layout .zone--whole .left,
#cmd-retail:checked ~ .cmd__layout .zone--retail .left {
  fill: color-mix(in srgb, var(--accent) 35%, var(--face-side));
}

#cmd-chem:checked ~ .cmd__layout .zone--chem .right,
#cmd-wood:checked ~ .cmd__layout .zone--wood .right,
#cmd-whole:checked ~ .cmd__layout .zone--whole .right,
#cmd-retail:checked ~ .cmd__layout .zone--retail .right {
  fill: color-mix(in srgb, var(--azure) 45%, var(--face-front));
}

/* --- CONTACT --- */
.contact { display: grid; gap: var(--gap); align-items: start; }
.contact > * { min-width: 0; }

.contact__lines a,
.footer__grid a,
.contact__addr {
  overflow-wrap: anywhere;
}

.contact__addr {
  font-style: normal;
  margin-top: 1.2rem;
  display: grid;
  gap: 0.2rem;
}

.contact__addr span { font-weight: 700; }

.contact__lines {
  display: grid;
  gap: 0.25rem;
  margin-top: 1rem;
}

.contact__lines a { color: var(--azure); }

.form { display: grid; gap: 0.9rem; border: 1px solid var(--line); padding: 1rem; background: var(--bg-alt); }
.form__row { display: grid; gap: 0.9rem; }

/* --- FOOTER --- */
.footer__grid {
  display: grid;
  gap: 1.5rem;
}

.footer__grid a { text-decoration: none; }
.footer__grid nav { display: grid; gap: 0.3rem; }
.footer__brand p { margin-top: 0.8rem; color: var(--ink-soft); }

.site-footer { background: var(--bg-deep); border-top-color: var(--line); }

@media (min-width: 700px) {
  .hero__ticker { grid-template-columns: repeat(4, 1fr); }
  .mol { grid-template-columns: 1fr 1fr; }
  .form__row { grid-template-columns: 1fr 1fr; }
  .footer__grid { grid-template-columns: 1.4fr 1fr 1fr 0.8fr; }
  .yards { grid-template-columns: 1fr 1fr; }
  .yards__item--wide { grid-column: 1 / -1; }
}

@media (min-width: 900px) {
  .company { grid-template-columns: 1.15fr 0.85fr; gap: clamp(2rem, 4vw, 4rem); }
  .spec { grid-template-columns: 220px 1fr; gap: 2.5rem; align-items: start; }
  .spec__index { position: sticky; top: 96px; }
  .rail { grid-template-columns: repeat(4, 1fr); }
  .rail li {
    border-bottom: 0;
    border-right: 1px solid var(--line);
    padding: 1.2rem 1rem 0.2rem 0;
  }
  .rail li:last-child { border-right: 0; }
  .rail li + li { padding-left: 1rem; }
  .contact { grid-template-columns: 0.9fr 1.1fr; gap: clamp(2rem, 4vw, 4rem); }
  .cmd__deck {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 1rem;
    align-items: stretch;
  }
}

@media (min-width: 1440px) {
  .hero h1 { max-width: 18ch; }
}