/* =========================================================
   KREOPLAN — design tokens
   Direction: a project-documentation / architecture studio.
   Cool "drafting paper" background, ink-charcoal text, a single
   steel-blue accent, and a monospace face reserved for figures
   (areas, years, stats) — a nod to technical drawings & specs.
   ========================================================= */
:root {
  --bg: #EFEFEA;
  --bg-alt: #E6E6DF;
  --ink: #17181A;
  --muted: #5B5F5A;
  --line: #D3D3CB;
  --accent: #2B3F63;
  --accent-ink: #ffffff;
  --tag: #8A4B23;
  --paper: #FAFAF6;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --container: 1180px;
  --radius: 2px;
  --radius-2: 4px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2rem, 4.5vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); margin-bottom: 1.2em; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; color: var(--muted); }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- image / logo placeholders ---------- */
.ph {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    repeating-linear-gradient(45deg, #DDDCD3, #DDDCD3 8px, #E7E6DE 8px, #E7E6DE 16px);
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-align: center;
  overflow: hidden;
}
.ph span { padding: 4px 8px; background: rgba(250,250,246,0.85); border-radius: var(--radius); }
.ph::before {
  content: attr(data-original);
  position: absolute;
  bottom: 4px;
  right: 6px;
  font-size: 0.6rem;
  opacity: 0.55;
}

/* ---------- header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 16px;
  padding-bottom: 16px;
}
.logo { display: flex; align-items: center; }
.logo-img { display: block; height: 32px; width: auto; }
.main-nav { display: flex; gap: 28px; margin-left: auto; }
.main-nav a { font-size: 0.95rem; color: #fff; position: relative; }
.main-nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 1px;
  background: #fff; transform: scaleX(0); transform-origin: left;
  transition: transform 0.2s ease;
}
.main-nav a:hover::after { transform: scaleX(1); }
.btn.header-cta { background: #fff; color: #17181A; flex-shrink: 0; padding: 8px 16px; }
.btn.header-cta:hover { background: #E9E9E3; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
}
.nav-toggle span { width: 22px; height: 2px; background: #fff; display: block; }

/* ---------- hero ---------- */
.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding: 0 0 40px;
  background-image:
    linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)),
    url("../images/Kreoplan Project Lypynskogo.webp");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.hero-inner {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  flex: 1;
}
.hero-copy { max-width: 720px; margin-bottom: 40px; }
.hero-copy h1 { color: #fff; }
.hero-sub { font-size: 1.1rem; max-width: 560px; color: #fff; }
.hero-tags {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 0.25rem;
  overflow: hidden;
}
.hero-tag {
  background: var(--paper);
  padding: 24px 20px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hero-tag-icon { width: 26px; height: 26px; margin-bottom: 4px; }
.hero-tag strong { font-family: var(--font-display); font-size: 0.98rem; }
.hero-tag span { font-size: 0.82rem; color: var(--muted); }
.hero-tag:hover { background: var(--bg-alt); }

/* ---------- trust logos ---------- */
.trust { padding: 64px 0; border-bottom: 1px solid var(--line); }
.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  align-items: start;
}
.trust-copy { grid-column: 1; }
.trust-title { max-width: 320px; text-transform: uppercase;}
.trust-sub { font-size: 0.9rem; max-width: 360px; }
.trust-logos {
  grid-column: 2 / span 2;
  padding: 1rem 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  border: solid 1px #D3D3CB;
  border-radius: .25rem;
}
.trust-logo { max-height: 8rem; width: auto; max-width: 140px; object-fit: contain; flex: none; border-radius: .25rem}

/* ---------- facts ---------- */
.facts { padding: 72px 0; border-bottom: 1px solid var(--line); }
.facts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  column-gap: 40px;
  row-gap: 56px;
}
.facts-copy { grid-column: 2; grid-row: 1; }
.facts-title { text-transform: uppercase; max-width: 420px; }
.facts-sub { font-size: 0.9rem; max-width: 400px; }
.fact { grid-row: 2; display: flex; flex-direction: column; }
.fact-num {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(3.5rem, 9vw, 7.5rem);
  line-height: 1;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.fact-label { font-size: 0.85rem; color: var(--muted); margin-top: 10px; }

/* ---------- services grid ---------- */
.services { padding: 56px 0; }
.services--demand { background: var(--bg-alt); }
.services-grid {
  display: grid;
  padding: 0px 0px;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: .25rem;
  overflow: hidden;
}
.services-copy {
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}
.services-title { font-size: 1.3rem; margin-bottom: 0.5em; text-transform: uppercase;}
.services-sub { font-size: 0.9rem; margin: 0; }
.service-card {
  background: var(--paper);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.service-card h3 { font-size: 1.02rem; margin: 0; }
.service-card p { font-size: 0.88rem; margin: 0; flex: 1; }
.service-card .btn { align-self: flex-start; margin-top: 4px; color: var(--ink); border-color: var(--line); }
.service-card .btn:hover { background: var(--bg-alt); }
.btn.services-view-all { display: flex; margin: 32px auto 0; width: fit-content; background-color: var(--ink);}

/* ---------- services accordion ---------- */
.accordion { border-top: 1px solid var(--line); }
.acc-item { border-bottom: 1px solid var(--line); }
.acc-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: none;
  border: none;
  padding: 20px 4px;
  text-align: left;
  font-family: var(--font-display);
  font-size: 1.02rem;
  color: var(--ink);
}
.acc-icon {
  flex: none;
  width: 22px; height: 22px;
  position: relative;
}
.acc-icon::before, .acc-icon::after {
  content: ""; position: absolute; background: var(--accent);
  top: 50%; left: 50%; transform: translate(-50%, -50%);
}
.acc-icon::before { width: 14px; height: 2px; }
.acc-icon::after { width: 2px; height: 14px; transition: transform 0.2s ease; }
.acc-item.is-open .acc-icon::after { transform: translate(-50%, -50%) rotate(90deg) scaleY(0); }
.acc-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}
.acc-panel > * { padding: 0 4px 20px; }
.acc-item.is-open .acc-panel { max-height: 600px; }

/* ---------- projects ---------- */
.projects { padding: 56px 0; }
.projects-title {text-transform: uppercase;}
.tabs { display: flex; gap: 8px; margin-bottom: 28px; border-bottom: 1px solid var(--line); }
.tab-btn {
  background: none; border: none; padding: 10px 18px;
  font-family: var(--font-display); font-size: 0.95rem; color: var(--muted);
  border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab-btn.is-active { color: var(--ink); border-color: var(--accent); }
.carousel { position: relative; display: flex; align-items: center; gap: 12px; }
.carousel[hidden] { display: none; }
.carousel-track {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding-bottom: 4px;
}
.carousel-track::-webkit-scrollbar { display: none; }
.carousel-arrow {
  flex: none;
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--paper);
  position: relative;
}
.carousel-arrow::before {
  content: ""; position: absolute; top: 50%; left: 50%;
  width: 8px; height: 8px;
  border-left: 2px solid var(--ink); border-bottom: 2px solid var(--ink);
}
.carousel-arrow--prev::before { transform: translate(-30%, -50%) rotate(45deg); }
.carousel-arrow--next::before { transform: translate(-70%, -50%) rotate(-135deg); }
.carousel-arrow:hover { background: var(--bg-alt); }

.project-card {
  flex: none;
  width: 600px;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
}
.project-thumbnail { width: 100%; aspect-ratio: 3/2; object-fit: cover; border-radius: 4px; margin-bottom: 12px; }
.project-tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--tag);
  border: 1px solid var(--tag);
  padding: 2px 8px;
  border-radius: 20px;
  margin-bottom: 8px;
}
.project-card h3 { font-size: 1.02rem; margin-bottom: 6px; }
.project-meta { font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted); line-height: 1.6; }

/* ---------- about ---------- */
.about { padding: 64px 0; background: var(--bg-alt); }
.about-title { text-align: center; text-transform: uppercase;}
.about-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; align-items: start; }
.about-logo { width: 100%; aspect-ratio: 1 / 1; height: auto; border-radius: var(--radius-2);}
.about-copy p:last-child { margin-bottom: 0; }

/* ---------- team ---------- */
.team { padding: 56px 0; }
.team-title {text-transform: uppercase;}
.team-card { flex: none; width: 190px; scroll-snap-align: start; text-align: center; }
.team-thumbnail { width: 100%; aspect-ratio: 3/4; border: solid 1px var(--muted); border-radius: 4px 4px 4px 4px; margin-bottom: 12px; }
.team-name { font-weight: 600; margin-bottom: 2px; color: var(--ink); }
.team-role { font-size: 0.82rem; margin: 0; }

/* ---------- faq ---------- */
.faq { padding: 56px 0 80px; }

/* ---------- contacts ---------- */
.contacts { background: var(--ink); color: #E9E9E3; padding: 64px 0; }
.contacts-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.contacts-info { display: flex; flex-direction: column; gap: 32px; }
.contacts-links { display: flex; flex-wrap: wrap; gap: 32px; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-heading { font-family: var(--font-display); color: #E9E9E3; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 4px; }
.footer-col a { color: #C7C7BE; font-size: 0.92rem; }
.footer-col a:hover { color: #fff; }
.contacts-logo { width: 160px; height: 60px; color: #C7C7BE; border-color: #3a3c35; }
.contacts-panel {
  display: flex;
  flex-direction: column;
  gap: 32px;
  background: var(--paper);
  color: var(--ink);
  padding: 32px;
  border-radius: .5rem;
}
.contacts-panel h3 { color: var(--ink); margin-bottom: 0.3em; }
.contacts-panel p { color: var(--muted); }
.contacts-panel .btn--outline { color: var(--ink); border-color: var(--line); }
.contacts-panel .btn--outline:hover { background: var(--bg-alt); }
.contacts-messenger-links { display: flex; gap: 12px; margin-top: 12px; }

/* ---------- footer ---------- */
.site-footer { background: var(--ink); color: #C7C7BE; padding: 24px 0; border-top: 1px solid #33352F; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.footer-copy { margin: 0; font-size: 0.85rem; color: #C7C7BE; }
.footer-legal { display: flex; gap: 20px; }
.footer-legal a { font-size: 0.85rem; color: #C7C7BE; }
.footer-legal a:hover { color: #fff; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: .25rem;
  font-size: 0.92rem;
  font-family: var(--font-display);
  border: 1px solid transparent;
}
.btn--primary { background: var(--ink); color: var(--accent-ink); }
.btn--primary:hover { background: var(--muted); }
.btn--outline { border-color: #55574E; color: #E9E9E3; background: none; }
.btn--outline:hover { background: #21221E; }

/* ---------- callback form ---------- */
#callback-form { display: flex; flex-direction: column; gap: 14px; margin-top: 16px; }
#callback-form label { display: flex; flex-direction: column; gap: 6px; font-size: 0.85rem; color: var(--muted); }
#callback-form input {
  font-family: var(--font-body); font-size: 1rem; padding: 10px 12px;
  border: 1px solid var(--line); border-radius: var(--radius); background: #fff;
}
.form-msg--success { color: #2E6B3E; }
.form-msg--error { color: #A23A2E; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .contacts-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .main-nav { position: fixed; top: 65px; left: 0; right: 0; background: var(--paper); flex-direction: column; padding: 20px 24px; border-bottom: 1px solid var(--line); transform: translateY(-130%); transition: transform 0.25s ease; }
  .main-nav.is-open { transform: translateY(0); }
  .main-nav a { color: var(--ink); }
  .main-nav a::after { background: var(--accent); }
  .nav-toggle { display: flex; }
  .hero-tags { grid-template-columns: 1fr; }
  .facts-grid { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: 1fr; }
  .trust-copy, .trust-logos { grid-column: 1; }
  .services-grid { grid-template-columns: 1fr; }
  .facts-copy { grid-column: 1; grid-row: auto; }
  .fact { grid-row: auto; }
  .contacts-links { flex-direction: column; gap: 24px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}