/* ==========================================================
   LAYOUT: header, navigation, footer
   Mobile-first: base styles are for phones, and the
   @media blocks add enhancements for larger screens.
   ========================================================== */

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 120;
  transition: transform 0.5s var(--ease), background 0.4s ease,
    backdrop-filter 0.4s ease, border-color 0.4s ease;
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: rgba(15, 15, 15, 0.8);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}

.site-header.is-hidden {
  transform: translateY(-100%);
}

/* While the mobile menu is open, the header becomes see-through
   so only the logo and the X show above the menu */
body.menu-open .site-header {
  background: transparent;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  border-bottom-color: transparent;
  transform: none;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- Brand / logo wordmark ---------- */
.brand {
  display: flex;
  flex-direction: column;
  line-height: 1;
  position: relative;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: 0.28em;
  font-weight: 500;
}

.brand-sub {
  margin-top: 0.4rem;
  font-size: 0.55rem;
  letter-spacing: 0.55em;
  color: var(--accent);
  font-weight: 400;
}

/* ---------- Desktop nav (hidden on mobile) ---------- */
.nav-desktop {
  display: none;
}

.nav-desktop > ul {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-desktop a {
  position: relative;
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding-block: 0.5rem;
  transition: color 0.3s ease;
}

/* Animated underline */
.nav-desktop > ul > li > a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.5s var(--ease);
}

.nav-desktop > ul > li > a:hover::after,
.nav-desktop a[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-desktop a:hover {
  color: var(--gold-light);
}

/* Dropdown */
.has-dropdown {
  position: relative;
}

.dropdown {
  position: absolute;
  top: 100%;
  left: -1.5rem;
  min-width: 210px;
  padding: 1rem 0;
  background: rgba(15, 15, 15, 0.96);
  border: 1px solid var(--line);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.35s ease, transform 0.35s var(--ease),
    visibility 0.35s;
}

.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown a {
  display: block;
  padding: 0.6rem 1.5rem;
  letter-spacing: 0.18em;
}

/* Client login button in nav */
.nav-cta {
  padding: 0.7rem 1.4rem !important;
  border: 1px solid var(--accent);
  transition: background 0.4s ease, color 0.4s ease !important;
}
.nav-cta:hover {
  background: var(--accent);
  color: var(--black) !important;
}

/* ---------- Mobile menu button (hamburger) ---------- */
.menu-toggle {
  position: relative;
  z-index: 120;
  width: 44px;
  height: 44px;
  display: grid;
  place-content: center;
  gap: 7px;
}

.menu-toggle span {
  display: block;
  width: 28px;
  height: 1px;
  background: var(--text);
  transition: transform 0.5s var(--ease), opacity 0.3s ease;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}
.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  transform: translateY(-4px) rotate(-45deg);
}

/* ---------- Full-screen mobile menu ---------- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 110;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--header-h) + 1rem) var(--gutter) 2rem;
  background: var(--black);
  clip-path: circle(0% at calc(100% - 2.5rem) 2.5rem);
  visibility: hidden;
  transition: clip-path 0.8s var(--ease), visibility 0.8s;
  overflow-y: auto;
}

.mobile-menu.is-open {
  clip-path: circle(150% at calc(100% - 2.5rem) 2.5rem);
  visibility: visible;
}

.mobile-menu li {
  overflow: hidden;
}

.mobile-menu a {
  display: inline-block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 8vw, 3rem);
  line-height: 1.3;
  transform: translateY(110%);
  transition: transform 0.7s var(--ease), color 0.3s ease;
}

.mobile-menu.is-open a {
  transform: translateY(0);
  transition-delay: calc(0.25s + var(--i, 0) * 0.06s);
}

.mobile-menu a:hover,
.mobile-menu a[aria-current="page"] {
  color: var(--gold-light);
  font-style: italic;
}

.mobile-menu .mobile-sub {
  margin: 0.25rem 0 0.75rem 1rem;
}
.mobile-menu .mobile-sub a {
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding-block: clamp(3rem, 6vw, 5rem) 2rem;
  background: var(--bg);
}

.footer-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
}

.footer-brand p {
  max-width: 32ch;
  margin-top: 1.25rem;
  color: var(--text-muted);
}

.footer-col h4 {
  font-family: var(--font-body);
  font-size: var(--fs-small);
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.footer-col li + li {
  margin-top: 0.5rem;
}

.footer-col a {
  color: var(--text-muted);
  transition: color 0.3s ease;
}
.footer-col a:hover {
  color: var(--text);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-size: var(--fs-small);
  color: var(--text-muted);
}

/* ---------- Tablet: 601px and up ---------- */
@media (min-width: 601px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* ---------- Desktop: 901px and up ---------- */
@media (min-width: 901px) {
  .nav-desktop { display: block; }
  .menu-toggle { display: none; }
  .mobile-menu { display: none; }

  .footer-grid {
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
  }
  .footer-brand {
    grid-column: auto;
  }
}