/* ============================================================
   Fifth Asset Management — Header, Navigation, Footer
   ============================================================ */

/* ---- Header ---- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background var(--duration-base) var(--ease-out),
              border-color var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
}

/* Persistent thin divider while sitting over a dark hero (not just on scroll) */
.site-header.has-dark-hero:not(.is-scrolled):not(.is-open) {
  border-bottom-color: rgba(255, 255, 255, 0.16);
}

.site-header.is-scrolled,
.site-header.is-open {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--color-navy-900);
}

.site-header.has-dark-hero:not(.is-scrolled):not(.is-open) .brand--on-dark {
  color: var(--color-white);
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--color-navy-900);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: var(--text-md);
  flex-shrink: 0;
}

.brand-name em {
  font-style: normal;
  font-weight: 400;
  opacity: 0.62;
  display: block;
  font-size: 0.6em;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  font-family: var(--font-sans);
  margin-top: 2px;
}

.main-nav {
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-links a {
  position: relative;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  padding: var(--space-1) 0;
  transition: color var(--duration-fast) var(--ease-out);
}

.site-header.has-dark-hero:not(.is-scrolled):not(.is-open) .nav-links a {
  color: rgba(255, 255, 255, 0.88);
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 1px;
  background: currentColor;
  transition: width var(--duration-base) var(--ease-out);
}

.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after {
  width: 100%;
}

.nav-links a[aria-current="page"] {
  font-weight: 600;
}

/* ---- Nav actions (Sign In + primary CTA), right-aligned on desktop ---- */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.nav-actions-mobile { display: none; }

.nav-signin {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  transition: color var(--duration-fast) var(--ease-out);
}
.nav-signin svg { width: 14px; height: 14px; transition: transform var(--duration-base) var(--ease-out); }
.nav-signin:hover svg { transform: translateX(3px); }

.site-header.has-dark-hero:not(.is-scrolled):not(.is-open) .nav-signin {
  color: rgba(255, 255, 255, 0.88);
}

/* On a dark/transparent header, the primary button flips to a light (white) treatment */
.site-header.has-dark-hero:not(.is-scrolled):not(.is-open) .nav-actions .btn-primary,
.site-header.has-dark-hero:not(.is-scrolled):not(.is-open) .nav-actions-mobile .btn-primary {
  background: rgba(255, 255, 255, 0.96);
  color: var(--color-navy-900);
  border-color: rgba(255, 255, 255, 0.96);
}
.site-header.has-dark-hero:not(.is-scrolled):not(.is-open) .nav-actions .btn-primary:hover,
.site-header.has-dark-hero:not(.is-scrolled):not(.is-open) .nav-actions-mobile .btn-primary:hover {
  background: #fff;
  border-color: #fff;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: '';
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--color-navy-900);
  transition: transform var(--duration-base) var(--ease-out), opacity var(--duration-fast);
  position: relative;
}
.site-header.has-dark-hero:not(.is-scrolled):not(.is-open) .nav-toggle span,
.site-header.has-dark-hero:not(.is-scrolled):not(.is-open) .nav-toggle span::before,
.site-header.has-dark-hero:not(.is-scrolled):not(.is-open) .nav-toggle span::after {
  background: var(--color-white);
}
.nav-toggle span::before { position: absolute; top: -6px; }
.nav-toggle span::after { position: absolute; top: 6px; }

.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(6px) rotate(45deg); background: var(--color-navy-900); }
.nav-toggle[aria-expanded="true"] span::after { transform: translateY(-6px) rotate(-45deg); background: var(--color-navy-900); }

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: var(--nav-height);
    left: 0; right: 0;
    height: calc(100dvh - var(--nav-height));
    background: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-6) var(--space-4);
    gap: var(--space-6);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--duration-base) var(--ease-out),
                transform var(--duration-base) var(--ease-out),
                visibility 0s linear var(--duration-base);
    overflow-y: auto;
  }
  .site-header.is-open .main-nav {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    transition: opacity var(--duration-base) var(--ease-out),
                transform var(--duration-base) var(--ease-out),
                visibility 0s;
  }
  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
    width: 100%;
  }
  .nav-links a { font-size: var(--text-lg); color: var(--color-text) !important; }

  .nav-actions { display: none; }
  .nav-actions-mobile {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
    width: 100%;
    margin-top: var(--space-6);
    padding-top: var(--space-5);
    border-top: 1px solid var(--color-border);
  }
  .nav-actions-mobile .nav-signin {
    justify-content: center;
    color: var(--color-text) !important;
    padding: var(--space-2) 0;
  }
  .nav-actions-mobile .btn { width: 100%; justify-content: center; }
}

/* ---- Page header spacer (pages without full-bleed hero) ---- */
.page-head {
  padding-top: calc(var(--nav-height) + var(--space-7));
  padding-bottom: var(--space-7);
}

/* ---- Footer ---- */
.site-footer {
  background: var(--color-navy-900);
  color: var(--color-text-inverse-muted);
  padding-block: var(--space-8) var(--space-5);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-6);
  padding-bottom: var(--space-7);
  border-bottom: 1px solid var(--color-border-dark);
}

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-5); }
}

.footer-brand .brand { color: var(--color-white); margin-bottom: var(--space-3); }
.footer-brand p { max-width: 32ch; font-size: var(--text-sm); }

.footer-col h4 {
  color: var(--color-white);
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}

.footer-col ul { display: flex; flex-direction: column; gap: var(--space-2); }

.footer-col a {
  font-size: var(--text-sm);
  color: var(--color-text-inverse-muted);
  transition: color var(--duration-fast) var(--ease-out);
}
.footer-col a:hover { color: var(--color-white); }

.footer-bottom {
  padding-top: var(--space-5);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-5);
  flex-wrap: wrap;
}

.footer-legal {
  font-size: var(--text-xs);
  line-height: var(--leading-relaxed);
  max-width: 62ch;
  color: rgba(255, 255, 255, 0.44);
}

.footer-meta {
  display: flex;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.5);
  flex-wrap: wrap;
}
.footer-meta a:hover { color: var(--color-white); }

/* ============================================================
   Home hero header — Lionsoul-style composition refinements
   ============================================================ */
@media (min-width: 901px) {
  .home-page .site-header {
    height: 82px;
  }

  .home-page .site-header.has-dark-hero:not(.is-scrolled):not(.is-open) {
    background: transparent;
    border-bottom-color: rgba(255, 255, 255, 0.20);
    box-shadow: none;
  }

  .home-page .site-header .container {
    max-width: none;
    width: 100%;
    padding-inline: clamp(38px, 3.65vw, 60px);
    display: grid;
    grid-template-columns: minmax(330px, 1fr) auto minmax(330px, 1fr);
    align-items: center;
    gap: 2rem;
  }

  .home-page .site-header .brand {
    justify-self: start;
  }

  .home-page .site-header .brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 0;
    background: rgba(8, 20, 38, 0.88);
    border: 1px solid rgba(255,255,255,0.14);
    box-shadow: 0 12px 34px rgba(0,0,0,0.22);
  }

  .home-page .site-header .brand-name {
    font-size: 1.25rem;
    line-height: 1.08;
  }

  .home-page .site-header .brand-name em {
    margin-top: 0.45rem;
    font-size: 0.68rem;
    letter-spacing: 0.16em;
    color: rgba(255,255,255,0.68);
  }

  .home-page .site-header .main-nav {
    justify-self: center;
  }

  .home-page .site-header .nav-links {
    gap: clamp(2.75rem, 4vw, 4.65rem);
  }

  .home-page .site-header .nav-links a {
    color: rgba(255,255,255,0.90);
    font-size: 0.94rem;
    font-weight: 600;
    letter-spacing: -0.01em;
  }

  .home-page .site-header .nav-links a::after {
    bottom: -1.42rem;
    height: 2px;
    background: rgba(255,255,255,0.92);
  }

  .home-page .site-header .nav-actions {
    justify-self: end;
    gap: clamp(1.7rem, 2.7vw, 3rem);
  }

  .home-page .site-header .nav-signin {
    color: rgba(255,255,255,0.92);
    font-size: 0.98rem;
    font-weight: 600;
  }

  .home-page .site-header .nav-actions .btn-primary {
    padding: 1.05rem 1.85rem;
    min-height: 48px;
    min-width: 176px;
    border-radius: 0;
    font-size: 0.94rem;
  }
}

@media (min-width: 901px) and (max-width: 1140px) {
  .home-page .site-header .container {
    grid-template-columns: minmax(250px, 1fr) auto minmax(250px, 1fr);
    gap: 1.35rem;
  }
  .home-page .site-header .nav-links {
    gap: 2rem;
  }
  .home-page .site-header .brand-name {
    font-size: 1.06rem;
  }
  .home-page .site-header .nav-actions {
    gap: 1.4rem;
  }
  .home-page .site-header .nav-actions .btn-primary {
    min-width: 148px;
    padding-inline: 1.35rem;
  }
}

/* ============================================================
   Header refinement — consistent wide nav and readable scroll state
   ============================================================ */
@media (min-width: 901px) {
  .site-header,
  .home-page .site-header {
    height: 82px;
  }

  .site-header .container,
  .home-page .site-header .container {
    max-width: none;
    width: 100%;
    padding-inline: clamp(38px, 3.65vw, 60px);
    display: grid;
    grid-template-columns: minmax(330px, 1fr) auto minmax(330px, 1fr);
    align-items: center;
    gap: 2rem;
  }

  .site-header .brand,
  .home-page .site-header .brand { justify-self: start; }

  .site-header .brand-mark,
  .home-page .site-header .brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 0;
  }

  .site-header .brand-name,
  .home-page .site-header .brand-name {
    font-size: 1.25rem;
    line-height: 1.08;
  }

  .site-header .brand-name em,
  .home-page .site-header .brand-name em {
    margin-top: 0.45rem;
    font-size: 0.68rem;
    letter-spacing: 0.16em;
  }

  .site-header .main-nav,
  .home-page .site-header .main-nav { justify-self: center; }

  .site-header .nav-links,
  .home-page .site-header .nav-links { gap: clamp(2.75rem, 4vw, 4.65rem); }

  .site-header .nav-links a,
  .home-page .site-header.is-scrolled .nav-links a,
  .home-page .site-header.is-open .nav-links a {
    color: var(--color-text);
    font-size: 0.94rem;
    font-weight: 600;
    letter-spacing: -0.01em;
  }

  .site-header.has-dark-hero:not(.is-scrolled):not(.is-open) .nav-links a,
  .home-page .site-header.has-dark-hero:not(.is-scrolled):not(.is-open) .nav-links a {
    color: rgba(255,255,255,0.90);
  }

  .site-header .nav-links a::after,
  .home-page .site-header .nav-links a::after {
    bottom: -1.42rem;
    height: 2px;
  }

  .site-header .nav-actions,
  .home-page .site-header .nav-actions {
    justify-self: end;
    gap: clamp(1.7rem, 2.7vw, 3rem);
  }

  .site-header .nav-signin,
  .home-page .site-header.is-scrolled .nav-signin,
  .home-page .site-header.is-open .nav-signin {
    color: var(--color-text);
    font-size: 0.98rem;
    font-weight: 600;
  }

  .site-header.has-dark-hero:not(.is-scrolled):not(.is-open) .nav-signin,
  .home-page .site-header.has-dark-hero:not(.is-scrolled):not(.is-open) .nav-signin {
    color: rgba(255,255,255,0.92);
  }

  .home-page .site-header.is-scrolled .brand-name em,
  .home-page .site-header.is-open .brand-name em,
  .site-header:not(.has-dark-hero) .brand-name em {
    color: var(--color-grey-600);
    opacity: 0.72;
  }

  .site-header.has-dark-hero:not(.is-scrolled):not(.is-open) .brand-name em,
  .home-page .site-header.has-dark-hero:not(.is-scrolled):not(.is-open) .brand-name em {
    color: rgba(255,255,255,0.68);
  }

  .site-header .nav-actions .btn-primary,
  .home-page .site-header .nav-actions .btn-primary {
    padding: 1.05rem 1.85rem;
    min-height: 48px;
    min-width: 176px;
    border-radius: 0;
    font-size: 0.94rem;
  }
}

@media (min-width: 901px) and (max-width: 1140px) {
  .site-header .container,
  .home-page .site-header .container {
    grid-template-columns: minmax(250px, 1fr) auto minmax(250px, 1fr);
    gap: 1.35rem;
  }
  .site-header .nav-links,
  .home-page .site-header .nav-links { gap: 2rem; }
  .site-header .brand-name,
  .home-page .site-header .brand-name { font-size: 1.06rem; }
  .site-header .nav-actions,
  .home-page .site-header .nav-actions { gap: 1.4rem; }
  .site-header .nav-actions .btn-primary,
  .home-page .site-header .nav-actions .btn-primary {
    min-width: 148px;
    padding-inline: 1.35rem;
  }
}