/* ===========================================================
   layout.css — шапка, навігація, hero, футер, cookie, FAB
   =========================================================== */

/* ---------- Шапка (прозора -> суцільна при скролі) ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 60;
  transition: background .4s var(--ease), backdrop-filter .4s var(--ease),
              border-color .4s var(--ease), padding .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1.4rem;
  transition: padding .4s var(--ease);
}
.site-header.is-stuck {
  background: rgba(7,11,20,.82);
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom-color: var(--line);
}
.site-header.is-stuck .site-header__inner { padding-block: .85rem; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: 1.18rem;
  letter-spacing: -.01em;
  color: var(--ink);
}
.brand__mark {
  width: 34px; height: 34px;
  flex: 0 0 auto;
  border-radius: var(--radius);
}
.brand small {
  display: block;
  font-family: var(--ff-body);
  font-weight: 600;
  font-size: .58rem;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 2px;
}

/* ---------- Навігація ---------- */
.nav { display: flex; align-items: center; gap: 2.1rem; }
.nav__list {
  display: flex;
  align-items: center;
  gap: 1.9rem;
  list-style: none;
  margin: 0; padding: 0;
}
.nav__link {
  position: relative;
  font-weight: 600;
  font-size: .95rem;
  color: var(--ink-soft);
  padding-block: .3rem;
  transition: color .3s var(--ease);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%; height: 1.5px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease);
}
.nav__link:hover { color: var(--ink); }
.nav__link:hover::after,
.nav__link[aria-current="page"]::after { transform: scaleX(1); }
.nav__link[aria-current="page"] { color: var(--ink); }

.nav__phone {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--ink);
}
.nav__phone svg { color: var(--accent); }

/* бургер */
.burger {
  display: none;
  width: 46px; height: 46px;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  position: relative;
}
.burger span,
.burger span::before,
.burger span::after {
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  width: 20px; height: 2px;
  background: var(--ink);
  transform: translate(-50%,-50%);
  transition: transform .35s var(--ease), opacity .25s;
}
.burger span::before { transform: translate(-50%,-8px); }
.burger span::after  { transform: translate(-50%,6px); }
.burger[aria-expanded="true"] span { background: transparent; }
.burger[aria-expanded="true"] span::before { transform: translate(-50%,-50%) rotate(45deg); top:50%; left:50%; }
.burger[aria-expanded="true"] span::after  { transform: translate(-50%,-50%) rotate(-45deg); top:50%; left:50%; }

/* ---------- Hero (повноекранний) ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  isolation: isolate;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
}
.hero__bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  transform: scale(1.06);
  filter: saturate(.9) contrast(1.02);
}
.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 90% at 18% 20%, rgba(7,11,20,.55), transparent 55%),
    linear-gradient(180deg, rgba(7,11,20,.78) 0%, rgba(7,11,20,.55) 38%, rgba(7,11,20,.92) 100%);
}
.hero__overlay::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(80% 60% at 80% 0%, rgba(56,225,255,.16), transparent 60%);
  mix-blend-mode: screen;
}
.hero__inner {
  width: 100%;
  padding-block: 9rem 5rem;
  max-width: 920px;
}
.hero h1 {
  font-size: clamp(2.7rem, 8.5vw, 6.6rem);
  margin: 1.4rem 0 1.6rem;
}
.hero__lead {
  font-size: clamp(1.1rem, 1.7vw, 1.45rem);
  color: var(--ink-soft);
  max-width: 640px;
  margin-bottom: 2.6rem;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: 1rem; }

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1.6rem, 4vw, 3.4rem);
  margin-top: clamp(3rem, 6vw, 5rem);
  padding-top: 2.2rem;
  border-top: 1px solid var(--line);
}
.hero__meta div { line-height: 1.2; }
.hero__meta b {
  display: block;
  font-family: var(--ff-display);
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  color: var(--ink);
}
.hero__meta span { font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-mute); }

.hero__scroll {
  position: absolute;
  left: 50%; bottom: 1.8rem;
  transform: translateX(-50%);
  z-index: 1;
  display: inline-flex; flex-direction: column; align-items: center; gap: .5rem;
  font-size: .68rem; letter-spacing: .25em; text-transform: uppercase; color: var(--ink-mute);
}
.hero__scroll::after {
  content: "";
  width: 1px; height: 40px;
  background: linear-gradient(var(--accent), transparent);
  animation: scrollPulse 2.2s var(--ease) infinite;
}
@keyframes scrollPulse { 0%{transform:scaleY(.2);opacity:.3} 50%{transform:scaleY(1);opacity:1} 100%{transform:scaleY(.2);opacity:.3} }

/* варіант hero для внутрішніх сторінок (нижчий) */
.pagehead {
  position: relative;
  isolation: isolate;
  padding-top: clamp(9rem, 16vw, 13rem);
  padding-bottom: clamp(3.5rem, 8vw, 6rem);
  overflow: hidden;
}
.pagehead__bg { position:absolute; inset:0; z-index:-2; }
.pagehead__bg img { width:100%; height:100%; object-fit:cover; }
.pagehead__overlay {
  position:absolute; inset:0; z-index:-1;
  background: linear-gradient(180deg, rgba(7,11,20,.7), rgba(7,11,20,.94));
}
.pagehead h1 { font-size: clamp(2.3rem, 6vw, 4.4rem); margin-bottom: 1rem; }
.pagehead p { max-width: 620px; }
.crumbs { font-size:.82rem; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-mute); margin-bottom:1.4rem; }
.crumbs a:hover { color: var(--accent); }

/* ---------- Футер ---------- */
.site-footer {
  background: var(--bg);
  border-top: 1px solid var(--line);
  padding-block: clamp(3.5rem, 7vw, 5.5rem) 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: clamp(1.8rem, 4vw, 3rem);
}
.footer-grid h4 {
  font-family: var(--ff-body);
  font-weight: 700; font-size: .78rem; letter-spacing: .2em; text-transform: uppercase;
  color: var(--ink-mute); margin-bottom: 1.2rem;
}
.footer-links { list-style:none; margin:0; padding:0; display:grid; gap:.7rem; }
.footer-links a { color: var(--ink-soft); transition: color .3s var(--ease); }
.footer-links a:hover { color: var(--accent); }
.footer-about p { color: var(--ink-soft); max-width: 34ch; }
.footer-contact a { display:flex; align-items:center; gap:.6rem; color:var(--ink-soft); margin-bottom:.7rem; }
.footer-contact a:hover { color: var(--accent); }
.footer-contact svg { color: var(--accent); flex:0 0 auto; }
.footer-bottom {
  margin-top: clamp(2.5rem, 5vw, 4rem);
  padding-top: 1.6rem;
  border-top: 1px solid var(--line);
  display:flex; flex-wrap:wrap; gap:1rem; justify-content:space-between;
  font-size:.85rem; color: var(--ink-mute);
}
.footer-bottom a:hover { color: var(--accent); }

/* ---------- Липкий нижній бар (моб. дзвінок) ---------- */
.callbar {
  position: fixed;
  inset: auto 0 0 0;
  z-index: 55;
  display: none;
  grid-template-columns: 1fr 1fr 1fr;
  background: rgba(7,11,20,.92);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--line);
}
.callbar a {
  display: flex; flex-direction: column; align-items: center; gap: .25rem;
  padding: .7rem .4rem calc(.7rem + env(safe-area-inset-bottom));
  font-size: .72rem; font-weight: 700; letter-spacing: .04em;
  color: var(--ink-soft);
}
.callbar a + a { border-left: 1px solid var(--line); }
.callbar a svg { color: var(--accent); }
.callbar a.is-primary { color: var(--accent); }

/* ---------- Cookie ---------- */
.cookie {
  position: fixed;
  left: clamp(1rem,3vw,2rem); right: clamp(1rem,3vw,2rem); bottom: clamp(1rem,3vw,2rem);
  z-index: 70;
  max-width: 560px;
  margin-inline: auto;
  background: var(--bg-3);
  border: 1px solid var(--line-2);
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.5rem;
  box-shadow: var(--shadow);
  display: flex; flex-wrap: wrap; gap: 1rem; align-items: center;
}
.cookie p { margin: 0; flex: 1 1 260px; font-size: .9rem; color: var(--ink-soft); }
.cookie p a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.cookie__btns { display:flex; gap:.7rem; flex: 0 0 auto; }
.cookie .btn { --pad-y:.65rem; font-size:.85rem; padding-inline:1.1rem; }

/* ---------- Адаптив ---------- */
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 820px) {
  .burger { display: inline-block; }
  .nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(86vw, 360px);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 6rem 2rem 2rem;
    background: var(--bg-2);
    border-left: 1px solid var(--line);
    transform: translateX(100%);
    transition: transform .45s var(--ease);
    overflow-y: auto;
  }
  .nav.is-open { transform: none; box-shadow: var(--shadow); }
  .nav__list { flex-direction: column; align-items: stretch; gap: 0; width: 100%; }
  .nav__list li { border-bottom: 1px solid var(--line); }
  .nav__link { display: block; padding: 1rem 0; font-size: 1.1rem; }
  .nav__link::after { display: none; }
  .nav__phone { margin-top: 1.6rem; font-size: 1.15rem; }
  .callbar { display: grid; }
  body.has-callbar { padding-bottom: 4.6rem; }
}

@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero__meta { gap: 1.4rem; }
}

/* затемнення під відкрите меню */
.nav-scrim {
  position: fixed; inset: 0; z-index: 50;
  background: rgba(3,6,12,.6);
  backdrop-filter: blur(2px);
  opacity: 0; visibility: hidden;
  transition: opacity .4s var(--ease), visibility .4s;
}
.nav-scrim.is-on { opacity: 1; visibility: visible; }