/* ============================================================
   LAYOUT - Header, nav, footer, menu mobile, FAB
   ============================================================ */

/* ============= HEADER STICKY ============= */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, background .25s ease;
}
.site-header.is-scrolled {
  border-bottom-color: var(--border);
  background: color-mix(in srgb, var(--bg) 96%, transparent);
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

/* Brand */
.brand {
  display: flex;
  align-items: center;
  gap: .7rem;
  text-decoration: none;
  color: var(--text);
}
.brand-mark {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}
.brand-name {
  font-family: var(--ff-display);
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: -0.005em;
}
.brand-sub {
  font-family: var(--ff-ui);
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--accent);
  font-weight: 500;
}

/* Desktop nav */
.nav-desktop {
  display: none;
  align-items: center;
  gap: 1.8rem;
}
.nav-desktop a {
  font-family: var(--ff-ui);
  font-size: .9rem;
  color: var(--text);
  transition: color .2s ease;
  padding: .4rem 0;
  position: relative;
}
.nav-desktop a::after {
  content: "";
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .3s ease;
}
.nav-desktop a:hover { color: var(--accent); }
.nav-desktop a:hover::after { transform: scaleX(1); transform-origin: left; }

.header-cta {
  display: none;
}

/* ============= BURGER ============= */
.burger {
  position: fixed;
  top: calc((var(--header-h-mobile) - 44px) / 2);
  right: 16px;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  background: transparent;
  border: 0;
  cursor: pointer;
  z-index: var(--z-burger);
}
.burger span,
.burger span::before,
.burger span::after {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--text);
  border-radius: 1px;
  transition: transform .3s ease, top .3s ease, opacity .2s ease;
}
.burger span { position: relative; }
.burger span::before,
.burger span::after {
  content: "";
  position: absolute;
  left: 0;
}
.burger span::before { top: -8px; }
.burger span::after  { top:  8px; }
.burger.is-open span { background: transparent; }
.burger.is-open span::before { top: 0; transform: rotate(45deg); }
.burger.is-open span::after  { top: 0; transform: rotate(-45deg); }

/* ============= MENU MOBILE ============= */
.menu-mobile {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100dvh;
  background: var(--bg);
  z-index: var(--z-menu);
  padding: calc(var(--header-h-mobile) + 24px) 24px 40px;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform .35s ease, opacity .35s ease, visibility 0s linear .35s;
}
.menu-mobile.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  transition: transform .35s ease, opacity .35s ease;
}
.menu-mobile a {
  font-family: var(--ff-display);
  font-size: 1.7rem;
  color: var(--text);
  padding: .8rem 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
}
.menu-mobile a.btn {
  justify-content: center;
  gap: 10px;
  padding: .95rem 1.6rem;
  min-height: 52px;
  border-bottom: 0;
  margin-top: 1.5rem;
  font-family: var(--ff-ui);
  font-size: 1rem;
}
.menu-mobile a.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ============= FOOTER ============= */
.site-footer {
  background: #1A1F1B;
  color: #DDD9CF;
  padding: 56px 0 28px;
  margin-top: 0;
}
.site-footer .container { padding-left: 24px; padding-right: 24px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}
.footer-col h4 {
  font-family: var(--ff-display);
  color: #fff;
  font-size: 1.15rem;
  margin-bottom: 1rem;
}
.footer-col p,
.footer-col li {
  color: #C9C4B6;
  font-size: .92rem;
  margin: 0 0 .55rem;
  line-height: 1.5;
}
.footer-col a {
  color: #C9C4B6;
  border-bottom: 1px solid rgba(201, 196, 182, .2);
  transition: color .2s ease, border-color .2s ease;
}
.footer-col a:hover { color: #fff; border-bottom-color: var(--accent-2); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .12);
  padding-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  font-size: .82rem;
  color: #9D9888;
}
.footer-bottom a { color: #9D9888; border-bottom: 1px solid rgba(157, 152, 136, .3); }
.footer-bottom a:hover { color: #fff; }

/* ============= FAB MOBILE ============= */
.fab-call {
  position: fixed;
  bottom: 18px;
  right: 18px;
  z-index: var(--z-fab);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .25), 0 0 0 6px color-mix(in srgb, var(--accent) 18%, transparent);
  transition: transform .2s ease, box-shadow .2s ease;
}
.fab-call:hover { transform: scale(1.05); }
.fab-call svg { width: 24px; height: 24px; }

@media (min-width: 900px) {
  .fab-call { display: none; }
}