/* =====================================================================
   Yläpalkki ja päävalikko
   ===================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(1.6) blur(14px);
  transition: transform 0.35s var(--ease), background-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.site-header.scrolled-up { box-shadow: var(--shadow-sm); }

.admin-bar .site-header { top: 32px; }

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

/* Etusivu: läpinäkyvä hero-kuvan päällä */
.site-header--overlay {
  position: fixed;
  inset: 0 0 auto;
  background: transparent;
  backdrop-filter: none;
}

.site-header--overlay.scrolled-up {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(1.6) blur(14px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  height: 100%;
}

/* Logo */
.site-logo {
  flex-shrink: 0;
  display: block;
  line-height: 0;
}

.site-logo img {
  width: auto;
  height: 50px;
}

.site-logo__light { display: none; }

.site-header--overlay:not(.scrolled-up) .site-logo__light { display: block; }
.site-header--overlay:not(.scrolled-up) .site-logo__dark { display: none; }

/* Valikko */
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-left: auto;
}

.main-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}

.main-nav__list a {
  display: block;
  padding: 0.5rem 0.9rem;
  font-family: var(--font-display);
  font-size: 0.975rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--navy-800);
  transition: color 0.2s var(--ease);
}

/* Korostus vain värillä, ei taustaa */
.main-nav__list a:hover,
.main-nav__list .current-menu-item > a,
.main-nav__list .current_page_item > a,
.main-nav__list .current-menu-ancestor > a {
  color: var(--gold-600);
}

.site-header--overlay:not(.scrolled-up) .main-nav__list a { color: var(--white); }

.site-header--overlay:not(.scrolled-up) .main-nav__list a:hover {
  color: var(--gold-400);
}

.main-nav__cta {
  min-height: 2.75rem;
  padding: 0.6rem 1.25rem;
  font-size: 0.95rem;
}

/* Tummaa taustaa vasten (etusivun hero, mobiilivalikko) vaaleampi kulta */
.site-header--overlay:not(.scrolled-up) .main-nav__cta {
  border-color: var(--gold-400);
  color: var(--gold-400);
}

.site-header--overlay:not(.scrolled-up) .main-nav__cta:hover {
  background: var(--gold-400);
  color: var(--navy-950);
}

/* Mobiilivalikon nappi */
.menu-toggle {
  display: none;
  position: relative;
  width: 2.75rem;
  height: 2.75rem;
  margin-left: auto;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--navy-50);
  color: var(--navy-800);
  cursor: pointer;
}

.site-header--overlay:not(.scrolled-up) .menu-toggle {
  background: rgba(255, 255, 255, 0.14);
  color: var(--white);
}

.menu-toggle__bar,
.menu-toggle__bar::before,
.menu-toggle__bar::after {
  position: absolute;
  left: 50%;
  width: 18px;
  height: 2px;
  margin-left: -9px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.3s var(--ease), background-color 0.3s var(--ease);
}

.menu-toggle__bar { top: 50%; margin-top: -1px; }
.menu-toggle__bar::before,
.menu-toggle__bar::after { content: ""; left: 0; margin-left: 0; }
.menu-toggle__bar::before { top: -6px; }
.menu-toggle__bar::after { top: 6px; }

.menu-toggle[aria-expanded="true"] .menu-toggle__bar { background: transparent; }
.menu-toggle[aria-expanded="true"] .menu-toggle__bar::before { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle__bar::after { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 1080px) {
  :root { --header-h: 72px; }

  .site-logo img { height: 42px; }

  .menu-toggle { display: block; z-index: 2; }

  .site-logo { position: relative; z-index: 2; }

  .main-nav {
    position: fixed;
    inset: 0;
    z-index: 1;
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
    gap: var(--space-6);
    height: 100vh;
    height: 100dvh;
    overflow-y: auto;
    padding: calc(var(--header-h) + 2rem) var(--gutter) 3rem;
    background: var(--navy-950);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s var(--ease), visibility 0.3s;
  }

  .main-nav.active {
    opacity: 1;
    visibility: visible;
  }

  .main-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
  }

  .main-nav__list a,
  .site-header--overlay:not(.scrolled-up) .main-nav__list a {
    padding: 0.6rem 0;
    border-radius: 0;
    font-size: 1.9rem;
    font-weight: 500;
    letter-spacing: -0.02em;
    color: var(--white);
  }

  .main-nav__list a:hover,
  .main-nav__list .current-menu-item > a,
  .main-nav__list .current_page_item > a {
    background: none;
    color: var(--gold-400);
  }

  .main-nav__cta,
  .site-header--overlay:not(.scrolled-up) .main-nav__cta {
    align-self: flex-start;
    border-color: var(--gold-400);
    color: var(--gold-400);
  }

  .nav-open .menu-toggle {
    background: rgba(255, 255, 255, 0.14);
    color: var(--white);
  }

  /* Sumennus ja transform tekisivät yläpalkista fixed-valikon rajaavan laatikon,
     jolloin valikko jäisi palkin korkuiseksi. Valikon ollessa auki ne pois. */
  .nav-open .site-header,
  .nav-open .site-header--overlay.scrolled-up {
    transform: none;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    box-shadow: none;
  }

  .nav-open { overflow: hidden; }

  .nav-open .site-logo__light { display: block; }
  .nav-open .site-logo__dark { display: none; }
}

@media (max-width: 782px) {
  .admin-bar .site-header { top: 46px; }
}