/* ==========================================================================
   ESSARDAS GROUP — GLOBAL CHROME
   Header / mega-menus / mobile overlay / footer. Per implementation.md §7.
   Markup is injected by js/chrome.js into [data-chrome] placeholders.
   ========================================================================== */

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--z-header);
  height: var(--header-h);
  display: flex;
  align-items: center;
  color: var(--chalk);
  transition: transform var(--dur-mid) var(--ease-luxe),
              background-color var(--dur-mid) var(--ease-luxe),
              backdrop-filter var(--dur-mid) var(--ease-luxe),
              height var(--dur-mid) var(--ease-luxe),
              border-color var(--dur-mid) var(--ease-luxe);
  border-bottom: 1px solid transparent;
}

/* Transparent over hero */
.site-header[data-transparent="true"] { background: transparent; }

/* Solid obsidian on scroll-down */
.site-header.is-solid {
  background: color-mix(in srgb, var(--obsidian) 88%, transparent);
  backdrop-filter: blur(14px) saturate(120%);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
  border-bottom-color: var(--line-dark);
}
.site-header.is-solid::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--champagne), transparent);
  opacity: 0.55;
}

/* Hide on scroll-down, reveal on scroll-up */
.site-header.is-hidden { transform: translateY(-100%); }

/* Pages without a hero start solid */
.site-header[data-transparent="false"] {
  background: var(--obsidian);
  border-bottom-color: var(--line-dark);
}

.site-header__inner {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(0.75rem, 1.5vw, 1.5rem);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  justify-self: start;
  color: var(--chalk);
  line-height: 1;
}
.brand__emblem {
  height: clamp(30px, 3.4vw, 40px);
  width: auto;
  display: block;
  flex: none;
  filter: drop-shadow(0 1px 6px rgba(0,0,0,0.4));
  transition: transform var(--dur-base) var(--ease-luxe), filter var(--dur-base) var(--ease-luxe);
}
.brand__text {
  display: inline-flex;
  flex-direction: column;
  gap: 0.18rem;
}
.brand .brand__mark {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  line-height: 1;
}
.brand .brand__sub {
  font-family: var(--font-ui);
  font-size: 0.55rem;
  letter-spacing: 0.26em;
  color: var(--champagne);
  text-transform: uppercase;
}
.brand:hover { color: var(--champagne-glow); }
.brand:hover .brand__emblem { transform: translateY(-1px) scale(1.03); filter: drop-shadow(0 2px 10px rgba(200,169,106,0.35)); }

/* Primary nav (desktop) */
.nav {
  display: flex;
  justify-content: center;
  align-items: center;
  justify-self: center;
  min-width: 0;
  gap: clamp(0.65rem, 1.4vw, 1.75rem);
}
.nav__list {
  display: flex;
  align-items: center;
  gap: inherit;
  margin: 0;
  padding: 0;
  list-style: none;
}
.nav__item { position: relative; }
.nav__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--chalk);
  white-space: nowrap;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%; height: 1px;
  background: var(--champagne);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--dur-fast) var(--ease-luxe);
}
.nav__item:hover .nav__link,
.nav__link[aria-current="page"] { color: var(--champagne-glow); }
.nav__item:hover .nav__link::after,
.nav__link[aria-current="page"]::after { transform: scaleX(1); }
.nav__link .caret {
  width: 6px; height: 6px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: rotate(45deg) translateY(-1px);
  transition: transform var(--dur-fast) var(--ease-luxe);
}
.nav__item:hover .nav__link .caret { transform: rotate(225deg) translateY(-1px); }

/* Header actions (right) */
.header-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  justify-self: end;
  flex-shrink: 0;
  gap: clamp(0.85rem, 1.5vw, 1.35rem);
}
.header-actions .link-underline {
  color: var(--chalk-soft);
  white-space: nowrap;
  flex-shrink: 0;
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  padding-bottom: 3px;
}
.header-actions .btn {
  white-space: nowrap;
  flex-shrink: 0;
  padding: 0.58rem 1.1rem;
  font-size: 0.62rem;
  letter-spacing: 0.13em;
  line-height: 1;
  background: var(--champagne);
  color: var(--obsidian);
  border-color: var(--champagne);
}
.header-actions .btn::before { background: var(--champagne-glow); }
.header-actions .btn:hover,
.header-actions .btn:focus-visible { color: var(--obsidian); }

/* ---- Mega-menu ---------------------------------------------------------- */
.megamenu {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 50%;
  transform: translate(-50%, 8px);
  min-width: 540px;
  background: color-mix(in srgb, var(--obsidian) 96%, transparent);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--line-dark);
  border-radius: 2px;
  padding: var(--space-4);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--dur-fast) var(--ease-luxe),
              transform var(--dur-fast) var(--ease-luxe),
              visibility var(--dur-fast);
}
.megamenu::before {
  content: "";
  position: absolute; top: -1px; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--champagne), transparent);
}
.nav__item.is-open .megamenu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
}
.megamenu__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.2rem 2.5rem;
}
.megamenu__col-title {
  grid-column: 1 / -1;
  font-family: var(--font-ui);
  font-size: 0.68rem;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--champagne);
  margin-bottom: var(--space-2);
}
.megamenu__link {
  display: block;
  padding: 0.5rem 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--chalk);
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast) var(--ease-luxe), padding-left var(--dur-fast) var(--ease-luxe);
}
.megamenu__link:hover { color: var(--champagne-glow); padding-left: 0.4rem; }
.megamenu__footer {
  grid-column: 1 / -1;
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--line-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.megamenu__footer .link-underline { color: var(--chalk); }

/* ---- Hamburger ---------------------------------------------------------- */
.hamburger {
  display: none;
  justify-self: end;
  width: 32px; height: 20px;
  position: relative;
  grid-column: 3;
}
.hamburger span {
  position: absolute;
  left: 0; width: 100%; height: 1.5px;
  background: var(--chalk);
  transition: transform var(--dur-fast) var(--ease-luxe), opacity var(--dur-fast) var(--ease-luxe);
}
.hamburger span:nth-child(1) { top: 2px; }
.hamburger span:nth-child(2) { top: 9px; }
.hamburger span:nth-child(3) { top: 16px; }
.hamburger.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-active span:nth-child(2) { opacity: 0; }
.hamburger.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   MOBILE OVERLAY
   ========================================================================== */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background: var(--obsidian);
  color: var(--chalk);
  display: flex;
  flex-direction: column;
  padding: calc(var(--header-h-mobile) + 1rem) var(--gutter) var(--gutter);
  transform: translateY(-100%);
  visibility: hidden;
  transition: transform var(--dur-slow) var(--ease-luxe), visibility var(--dur-slow);
  overflow-y: auto;
  overscroll-behavior: contain;
}
.mobile-nav.is-open { transform: translateY(0); visibility: visible; }

.mobile-nav__list { margin-top: var(--space-4); flex: 1; }
.mobile-nav__group { border-bottom: 1px solid var(--line-dark); }
.mobile-nav__top {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 0;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 7vw, 2.6rem);
  color: var(--chalk);
  text-align: left;
}
.mobile-nav__top .caret {
  width: 9px; height: 9px;
  border-right: 1.5px solid var(--champagne);
  border-bottom: 1.5px solid var(--champagne);
  transform: rotate(45deg);
  transition: transform var(--dur-fast) var(--ease-luxe);
  flex: none;
}
.mobile-nav__group.is-open .mobile-nav__top .caret { transform: rotate(225deg); }
.mobile-nav__sub {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur-mid) var(--ease-luxe);
}
.mobile-nav__group.is-open .mobile-nav__sub { grid-template-rows: 1fr; }
.mobile-nav__sub > div { overflow: hidden; }
.mobile-nav__sublink {
  display: block;
  padding: 0.6rem 0 0.6rem 1rem;
  font-family: var(--font-ui);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  color: var(--chalk-soft);
}
.mobile-nav__sublink:last-child { padding-bottom: 1.2rem; }
.mobile-nav__sublink:hover { color: var(--champagne-glow); }

/* Animated entrance of top-level items */
.mobile-nav__group {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--dur-mid) var(--ease-luxe), transform var(--dur-mid) var(--ease-luxe);
}
.mobile-nav.is-open .mobile-nav__group { opacity: 1; transform: none; }
.mobile-nav.is-open .mobile-nav__group:nth-child(1) { transition-delay: 0.10s; }
.mobile-nav.is-open .mobile-nav__group:nth-child(2) { transition-delay: 0.16s; }
.mobile-nav.is-open .mobile-nav__group:nth-child(3) { transition-delay: 0.22s; }
.mobile-nav.is-open .mobile-nav__group:nth-child(4) { transition-delay: 0.28s; }
.mobile-nav.is-open .mobile-nav__group:nth-child(5) { transition-delay: 0.34s; }

.mobile-nav__foot {
  padding-top: var(--space-4);
}
.mobile-nav__foot .btn { width: 100%; }

@media (min-width: 1025px) and (max-width: 1320px) {
  .nav__link { font-size: 0.72rem; letter-spacing: 0.12em; }
  .brand .brand__mark { font-size: 1.3rem; }
  .brand .brand__sub { font-size: 0.5rem; letter-spacing: 0.2em; }
}

/* Breakpoint: collapse to hamburger ≤1024px */
@media (max-width: 1024px) {
  .nav, .header-actions { display: none; }
  .hamburger { display: block; }
  .site-header__inner { grid-template-columns: 1fr auto; }
  .brand { grid-column: 1; }
}
@media (max-width: 768px) {
  .site-header { height: var(--header-h-mobile); }
}
@media (min-width: 1025px) {
  .mobile-nav { display: none; }
}

/* ==========================================================================
   FOOTER (5 columns → stacked)
   ========================================================================== */
.site-footer {
  background: var(--obsidian);
  color: var(--chalk-soft);
  padding-block: var(--space-12) var(--space-6);
}
.site-footer a { color: var(--chalk-soft); }
.site-footer a:hover { color: var(--champagne-glow); }

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr) 1.6fr;
  gap: var(--space-6) var(--gutter);
}
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-col--brand { grid-column: 1 / -1; }
  .footer-col--newsletter { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.footer-col h4 {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--champagne);
  margin-bottom: var(--space-3);
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.7rem; }
.footer-col li a { font-family: var(--font-ui); font-size: 0.92rem; }

.footer-col--brand .brand--footer { display: block; }
.brand__lockup {
  width: clamp(180px, 16vw, 240px);
  height: auto;
  display: block;
  opacity: 0.95;
  transition: opacity var(--dur-base) var(--ease-luxe);
}
.brand--footer:hover .brand__lockup { opacity: 1; }
.footer-brand-tag {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--chalk-soft);
  margin-top: var(--space-3);
}
.footer-social { display: flex; gap: var(--space-3); margin-top: var(--space-4); }
.footer-social a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  border: 1px solid var(--line-dark);
  border-radius: 50%;
  transition: border-color var(--dur-fast) var(--ease-luxe), color var(--dur-fast) var(--ease-luxe);
}
.footer-social a:hover { border-color: var(--champagne); color: var(--champagne-glow); }
.footer-social svg { width: 18px; height: 18px; }

.footer-newsletter .field { margin-bottom: var(--space-3); }
.footer-newsletter .field--inline { flex-direction: row; align-items: flex-end; gap: var(--space-2); }

.footer-legal {
  margin-top: var(--space-12);
  padding-top: var(--space-4);
  border-top: 1px solid var(--line-dark);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--smoke);
}
.footer-legal nav { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.footer-entity {
  margin-top: var(--space-3);
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--smoke);
  line-height: 1.6;
}

/* ==========================================================================
   COOKIE CONSENT BANNER (privacy-first)
   ========================================================================== */
.cookie-banner {
  position: fixed;
  left: 50%;
  bottom: clamp(1rem, 3vw, 2rem);
  transform: translate(-50%, 140%);
  z-index: var(--z-banner);
  width: min(720px, calc(100vw - 2rem));
  background: color-mix(in srgb, var(--obsidian) 96%, transparent);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid color-mix(in srgb, var(--champagne) 24%, transparent);
  border-radius: 2px;
  color: var(--chalk);
  opacity: 0;
  transition: transform var(--dur-base) var(--ease-luxe), opacity var(--dur-base) var(--ease-luxe);
}
.cookie-banner.is-in { transform: translate(-50%, 0); opacity: 1; }
.cookie-banner__inner {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 2rem);
  padding: clamp(1rem, 2.4vw, 1.6rem) clamp(1.2rem, 3vw, 2rem);
  flex-wrap: wrap;
}
.cookie-banner__text {
  flex: 1 1 280px;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--chalk-soft);
}
.cookie-banner__text a { color: var(--champagne); text-decoration: underline; text-underline-offset: 3px; }
.cookie-banner__actions { display: flex; gap: 0.75rem; flex-shrink: 0; }
.cookie-banner .btn { --btn-fg: var(--chalk); --btn-line: color-mix(in srgb, var(--champagne) 50%, transparent); }
.cookie-banner .btn--solid { --btn-fg: var(--obsidian); }

@media (prefers-reduced-motion: reduce) {
  .cookie-banner { transition: opacity var(--dur-base); transform: translate(-50%, 0); }
}