/* ============================================
   HEHCONSULTING — Layout (header, nav, footer)
   ============================================ */

/* ---------- Container utility ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}
.container--narrow { max-width: var(--container-narrow); }
.container--wide { max-width: var(--container-wide); }

/* ---------- Skip link (a11y) ---------- */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  z-index: var(--z-tooltip);
  padding: var(--space-3) var(--space-5);
  background-color: var(--color-navy);
  color: var(--color-white);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: top var(--t-fast);
}
.skip-link:focus-visible {
  top: var(--space-4);
}

/* ============================================
   Site header
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: linear-gradient(180deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
  border-bottom: 1px solid rgba(200, 156, 79, 0.35);
  box-shadow: 0 2px 4px rgba(6, 32, 59, 0.12), 0 8px 24px rgba(6, 32, 59, 0.10);
  transition:
    box-shadow var(--t-normal),
    border-color var(--t-normal);
}
.site-header.is-scrolled {
  border-bottom-color: rgba(200, 156, 79, 0.50);
  box-shadow: 0 4px 14px rgba(6, 32, 59, 0.22), 0 12px 36px rgba(6, 32, 59, 0.16);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding: var(--space-3) var(--container-px);
  max-width: var(--container-wide);
  margin-inline: auto;
  min-height: 88px;
  transition: min-height var(--t-normal);
}
.site-header.is-scrolled .site-header__inner {
  min-height: 68px;
}

/* ---------- Logo ---------- */
.site-header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.site-header__logo-img {
  height: 64px;
  width: auto;
  transition: height var(--t-normal);
}
.site-header.is-scrolled .site-header__logo-img {
  height: 48px;
}

/* ---------- Desktop nav ---------- */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-7);
}
.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  padding: 0;
  margin: 0;
}
.site-nav__link {
  position: relative;
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  color: var(--color-white);
  padding-block: var(--space-2);
  transition: color var(--t-fast);
}
.site-nav__link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  height: 1px;
  width: 0;
  background: var(--gradient-gold);
  transform: translateX(-50%);
  transition: width var(--t-slow) var(--ease-out-expo);
}
.site-nav__link:hover { color: var(--color-gold-light); }
.site-nav__link:hover::after,
.site-nav__link.is-active::after { width: 100%; }
.site-nav__link.is-active { color: var(--color-gold-light); }

/* ---------- CTA button (Contact) ---------- */
.site-nav__cta {
  position: relative;
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  color: var(--color-white);
  padding: var(--space-3) var(--space-5);
  border: 1px solid var(--color-white);
  border-radius: var(--radius-sm);
  overflow: hidden;
  isolation: isolate;
  transition: border-color var(--t-normal), color var(--t-normal);
}
.site-nav__cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-gold);
  z-index: -1;
  transform: translateY(101%);
  transition: transform var(--t-slow) var(--ease-out-expo);
}
.site-nav__cta:hover {
  color: var(--color-navy);
  border-color: var(--color-gold);
}
.site-nav__cta:hover::before { transform: translateY(0); }

/* ---------- Hamburger toggle ---------- */
.site-nav__toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  background: transparent;
  border: 0;
  cursor: pointer;
}
.site-nav__toggle-bar {
  display: block;
  width: 26px;
  height: 1.5px;
  background-color: var(--color-white);
  transition: transform var(--t-normal), opacity var(--t-fast);
  transform-origin: center;
}
.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar:nth-child(2) {
  opacity: 0;
}
.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ---------- Mobile nav panel ---------- */
.mobile-nav {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(380px, 88vw);
  background: linear-gradient(180deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
  z-index: var(--z-overlay);
  transform: translateX(100%);
  transition: transform var(--t-slow);
  box-shadow: var(--shadow-xl);
  overflow-y: auto;
}
.mobile-nav.is-open { transform: translateX(0); }

.mobile-nav__inner {
  padding: var(--space-12) var(--space-6) var(--space-6);
}
.mobile-nav__list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.mobile-nav__link {
  display: block;
  font-family: var(--font-serif);
  font-size: var(--fs-2xl);
  color: var(--color-white);
  padding-block: var(--space-4);
  border-bottom: 1px solid var(--color-border-on-dark);
  transition: color var(--t-fast);
}
.mobile-nav__link:hover,
.mobile-nav__link.is-active { color: var(--color-gold-light); }

.mobile-nav__link--cta {
  margin-top: var(--space-5);
  text-align: center;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  padding: var(--space-4);
  border: 1px solid var(--color-white);
  border-radius: var(--radius-sm);
}

/* ---------- Backdrop ---------- */
.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(6, 32, 59, 0.5);
  z-index: calc(var(--z-overlay) - 1);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-normal);
}
.mobile-nav-backdrop.is-active {
  opacity: 1;
  pointer-events: auto;
}

body.has-mobile-nav-open { overflow: hidden; }

/* ---------- Responsive breakpoint ---------- */
@media (max-width: 960px) {
  .site-nav { display: none; }
  .site-nav__toggle { display: flex; }
}

/* ============================================
   Site footer
   ============================================ */
.site-footer {
  background-color: var(--color-navy-dark);
  color: var(--color-text-on-dark);
  padding-top: var(--section-py);
  padding-bottom: var(--space-6);
}

.site-footer__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

.site-footer__main {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: var(--space-12);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid var(--color-border-on-dark);
}

.site-footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.site-footer__brand-name {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: var(--fw-medium);
  text-transform: uppercase;
  letter-spacing: var(--ls-widest);
  color: var(--color-gold-light);
  display: inline-block;
}
.site-footer__tagline {
  font-family: var(--font-serif);
  font-size: var(--fs-lg);
  line-height: var(--lh-relaxed);
  color: var(--color-text-on-dark-muted);
  font-style: italic;
}

.site-footer__cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}
.site-footer__col-title {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: var(--ls-widest);
  color: var(--color-gold);
  margin: 0 0 var(--space-4) 0;
}
.site-footer__col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.site-footer__col a {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  color: var(--color-text-on-dark-muted);
  transition: color var(--t-fast);
}
.site-footer__col a:hover { color: var(--color-gold-light); }

.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  padding-top: var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  color: var(--color-text-on-dark-soft);
  flex-wrap: wrap;
}
.site-footer__legal-info,
.site-footer__copyright { margin: 0; }

.site-footer__credit {
  flex-basis: 100%;
  margin-top: var(--space-3);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--color-text-on-dark-muted);
  text-align: center;
}

@media (max-width: 768px) {
  .site-footer__main {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .site-footer__cols {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }
  .site-footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}
@media (max-width: 480px) {
  .site-footer__cols { grid-template-columns: 1fr; }
}