/* ==========================================================================
   SECTIONS — HIFTEK-UKRAINA TOV
   Magazine split: half-screen hero, paper folio, isometric command panel.
   ========================================================================== */

:root {
  --bg: #14181f;
  --bg-alt: #1a2433;
  --bg-deep: #070d18;
  --ink: #e6edf5;
  --ink-soft: #9aa8b8;
  --ink-invert: #f3f6fa;
  --accent: #3dff6a;
  --accent-soft: #13261c;
  --line: #2c3644;
  --azure: #3c8dff;
  --azure-deep: #1d4ed8;
  --azure-bright: #9ec2ff;
  --oxford: #0c2344;
  --oxford-soft: #3a4d66;
  --graphite: #2a3140;
  --paper: #d7dee8;
  --shade: #05070c;
  --zone-furniture: #3c8dff;
  --zone-commercial: #9ec2ff;
  --zone-office: #3dff6a;
  --zone-logistics: #1f8f45;
  --gridline: color-mix(in srgb, var(--azure) 28%, transparent);
  --font-display: "Syne", "Avenir Next", "Segoe UI", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --tracking-display: -0.04em;
  --radius: 0px;
  --radius-lg: 0px;
  --shadow: none;
  --container: 1240px;
}

body { color-scheme: dark; }
.folio { color-scheme: light; }

.btn--primary { color: var(--bg-deep); }
.btn--primary:hover { color: var(--bg-deep); }

.site-header {
  background: color-mix(in srgb, var(--bg-deep) 88%, transparent);
}
.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  line-height: 1.15;
}
.brand-mark { flex: none; color: var(--ink); }
.brand-name { max-width: 11rem; }

.caption {
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  line-height: 1.45;
}
.idx {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--azure);
}

/* --- HERO: exact half --- */
.hero {
  display: grid;
  background: var(--bg);
}
.hero__copy {
  padding: clamp(1.75rem, 4vw, 4.5rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1rem;
  border-top: 4px solid var(--azure);
}
.hero__copy .lede { margin: 0; }
.hero__copy p { margin: 0; }
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.5rem;
}
.hero__meta { margin-top: 0.5rem; }
.hero__media {
  position: relative;
  min-height: 68vw;
  background: var(--graphite);
}
.hero__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero__media .caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 0.7rem 1rem;
  background: color-mix(in srgb, var(--bg-deep) 78%, transparent);
  color: var(--ink-invert);
}

/* --- GRID --- */
.grid-block { background: var(--bg-alt); }
.grid-block__split { display: grid; gap: clamp(2rem, 4vw, 4rem); }
.coords {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0;
}
.coords li {
  padding: 1.1rem 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 0.35rem;
}
.coords h3 { font-size: var(--step-1); }
.coords p { margin: 0; color: var(--ink-soft); }

/* --- ABOUT --- */
.about { background: var(--bg); }
.about__split { display: grid; gap: var(--gap); }
.about__copy { display: grid; gap: 1rem; align-content: center; }
.about__copy p { margin: 0; }
.about__photo {
  position: relative;
  min-height: 72vw;
  background: var(--graphite);
}
.about__photo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about__photo .caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 0.7rem 1rem;
  background: color-mix(in srgb, var(--bg-deep) 78%, transparent);
  color: var(--ink-invert);
}

/* --- SERVICES: paper folio --- */
.folio {
  background: var(--paper);
  color: var(--oxford);
}
.folio .lede,
.folio .muted,
.folio .caption { color: var(--oxford-soft); }
.folio .eyebrow,
.folio .idx { color: var(--azure-deep); }
.lines { display: grid; gap: clamp(2rem, 4vw, 3.5rem); }
.lines__list { display: grid; gap: 0.5rem; }
.lines__list > .eyebrow,
.lines__list > h2 { margin-bottom: 0.4rem; }
.line {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.25rem 0;
  border-top: 1px solid color-mix(in srgb, var(--oxford) 22%, transparent);
}
.line p { margin: 0; }
.line p + p { margin-top: 0.75rem; }
.lines__photo {
  position: relative;
  min-height: 64vw;
  background: var(--graphite);
}
.lines__photo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.lines__photo .caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 0.7rem 1rem;
  background: color-mix(in srgb, var(--bg-deep) 78%, transparent);
  color: var(--ink-invert);
}

/* --- SPACES --- */
.spaces { background: var(--bg-deep); }
.spaces__head { max-width: 38rem; margin-bottom: clamp(1.5rem, 3vw, 2.5rem); }
.spaces__head .lede { margin-top: 0.8rem; }
.spread { display: grid; gap: var(--gap); }
.spread__lead,
.spread__side figure {
  position: relative;
  background: var(--graphite);
  overflow: hidden;
}
.spread__lead { min-height: 78vw; }
.spread__side { display: grid; gap: 1rem; align-content: start; }
.spread__side p { margin: 0; }
.spread__side figure { min-height: 48vw; }
.spread img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.spread .caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 0.7rem 1rem;
  background: color-mix(in srgb, var(--bg-deep) 78%, transparent);
  color: var(--ink-invert);
}

/* --- METHOD --- */
.method { background: var(--bg); }
.method__split { display: grid; gap: clamp(1.5rem, 3vw, 3rem); }
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
}
.steps li {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 0.8rem;
  padding: 0.95rem 0;
  border-top: 1px solid var(--line);
}
.steps p { margin: 0; }

/* --- REACH --- */
.reach { background: var(--bg-alt); }
.reach__head { max-width: 40rem; margin-bottom: clamp(1.5rem, 3vw, 2.5rem); }
.reach__head .lede { margin-top: 0.8rem; }
.bands { display: grid; gap: var(--gap); }
.bands article {
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}
.bands h3 { margin-bottom: 0.45rem; }
.bands p { margin: 0; color: var(--ink-soft); }

/* --- PANEL --- */
.panel { background: var(--bg-deep); }
.panel__split { display: grid; gap: clamp(1.5rem, 3vw, 3rem); }
.stage {
  background-color: var(--oxford);
  background-image:
    linear-gradient(var(--gridline) 1px, transparent 1px),
    linear-gradient(90deg, var(--gridline) 1px, transparent 1px);
  background-size: 28px 28px;
  padding: 1.25rem 1rem 1rem;
  margin: 0;
  display: grid;
  align-content: center;
  gap: 0.75rem;
}
.stage figcaption {
  display: grid;
  gap: 0.85rem;
  padding-top: 0.35rem;
  background: var(--oxford);
}
.bldg { width: min(100%, 340px); height: auto; margin-inline: auto; }
.bldg [data-zone] { --plate: var(--graphite); }
.stage.is-furniture .bldg [data-zone="furniture"] { --plate: var(--zone-furniture); }
.stage.is-commercial .bldg [data-zone="commercial"] { --plate: var(--zone-commercial); }
.stage.is-office .bldg [data-zone="office"] { --plate: var(--zone-office); }
.stage.is-logistics .bldg [data-zone="logistics"] { --plate: var(--zone-logistics); }
.bldg .face {
  stroke: var(--bg-deep);
  stroke-width: 1;
  transition: fill 0.3s var(--ease);
}
.bldg .face--top { fill: var(--plate); }
.bldg .face--side { fill: color-mix(in srgb, var(--plate) 72%, var(--shade)); }
.bldg .face--edge { fill: color-mix(in srgb, var(--plate) 48%, var(--shade)); }
.zone-key {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.2rem 1rem;
}
.zone-key li { color: var(--ink-soft); font-size: 0.78rem; }
.stage.is-logistics [data-key="logistics"],
.stage.is-office [data-key="office"] { color: var(--accent); }
.stage.is-furniture [data-key="furniture"] { color: var(--azure); }
.stage.is-commercial [data-key="commercial"] { color: var(--azure-bright); }
.panel__controls { display: grid; gap: 1rem; align-content: center; }
.panel__controls .lede { margin: 0; }
.switches { display: grid; }
.switch {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  align-items: center;
  width: 100%;
  text-align: left;
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
  color: inherit;
}
.switch strong { font-family: var(--font-display); font-weight: 700; }
.switch__lamp {
  width: 2.6rem;
  height: 1.35rem;
  border: 1px solid var(--line);
  background: var(--graphite);
  position: relative;
}
.switch__lamp::after {
  content: "";
  position: absolute;
  width: 0.9rem;
  height: 0.9rem;
  top: 0.16rem;
  left: 0.16rem;
  background: var(--ink-soft);
  transition: transform 0.25s var(--ease), background-color 0.25s var(--ease);
}
.switch[aria-pressed="true"] .switch__lamp {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 22%, var(--bg-deep));
}
.switch[aria-pressed="true"] .switch__lamp::after {
  transform: translateX(1.2rem);
  background: var(--accent);
}
.readout {
  display: grid;
  gap: 0;
  padding-top: 0.2rem;
}
.readout > div {
  padding: 0.75rem 0;
  border-top: 1px solid var(--line);
}
.readout__value {
  margin: 0.15rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 2vw, 1.85rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
}
.panel__note { margin: 0; color: var(--ink-soft); }

/* --- CONTACT --- */
.contact { background: var(--bg); }
.contact__split { display: grid; gap: clamp(1.5rem, 4vw, 3.5rem); }
.contact address {
  font-style: normal;
  margin: 1.25rem 0;
  line-height: 1.55;
}
.contact__form { display: grid; gap: 1rem; }
.form-row { display: grid; gap: 1rem; }
.field input,
.field textarea,
.field select {
  width: 100%;
  background: var(--bg-alt);
  border-color: var(--line);
}
.field select {
  padding: 0.85em 1em;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

/* --- FOOTER --- */
.footer__grid {
  display: grid;
  gap: 1.75rem;
}
.footer__grid p { margin: 0.4rem 0 0; }
.footer__grid nav {
  display: grid;
  gap: 0.35rem;
  align-content: start;
}
.footer__grid nav a { text-decoration: none; }

@media (max-width: 1040px) {
  .nav { display: none; }
  .nav-toggle { display: grid; }
  .mobile-nav { display: grid; }
  .mobile-nav[hidden] { display: none; }
}

@media (min-width: 700px) {
  .form-row { grid-template-columns: 1fr 1fr; }
  .bands { grid-template-columns: repeat(3, 1fr); }
  .brand-name { max-width: none; }
  .zone-key { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 900px) {
  .hero {
    grid-template-columns: 1fr 1fr;
    min-height: calc(100svh - 72px);
  }
  .hero__copy { border-top: 0; border-left: 4px solid var(--azure); }
  .hero__media { min-height: 100%; }

  .grid-block__split {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: end;
  }

  .about__split {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: stretch;
  }
  .about__photo { order: -1; min-height: 100%; }

  .method__split {
    grid-template-columns: 0.8fr 1.2fr;
    align-items: start;
  }

  .contact__split {
    grid-template-columns: 0.8fr 1.2fr;
    align-items: start;
  }

  .footer__grid { grid-template-columns: 1.3fr 1fr 0.8fr; }
}

@media (min-width: 1000px) {
  .lines {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }
  .lines__photo {
    position: sticky;
    top: 96px;
    min-height: 70vh;
  }
  .spread {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: stretch;
  }
  .spread__lead { min-height: 760px; }
  .spread__side figure { min-height: 320px; }

  .panel__split {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
  }
}