/* Shared site header — pairs with view/partial/header-nav.html
   Use on light-background inner pages: <body class="site-page"> */

@media (max-width: 767px) { .d-only { display: none !important; } }
@media (min-width: 768px) { .m-only { display: none !important; } }

.site-page {
  --ios: #0066ff;
  --ink: #111827;
  --muted: #6b7280;
  --line: #e5e7eb;
  --white: #ffffff;
  --max: 1200px;
}

/* —— Mobile header —— */
.site-page .m-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: var(--white);
  border-bottom: 1px solid var(--line);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.site-page .m-header__logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  line-height: 0;
}
.site-page .m-header__right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}
.site-page .m-lang { position: relative; }
.site-page .m-lang summary {
  list-style: none;
  cursor: pointer;
  user-select: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #f9fafb;
  color: var(--ink);
  font-weight: 700;
  line-height: 1;
}
.site-page .m-lang summary::-webkit-details-marker { display: none; }
.site-page .m-lang__flag { font-size: 1.15rem; line-height: 1; }
.site-page .m-lang__code { font-size: 0.875rem; letter-spacing: 0.02em; }
.site-page .m-lang__chev {
  width: 16px;
  height: 16px;
  display: block;
  opacity: 0.85;
  transition: transform 0.2s ease;
}
.site-page .m-lang[open] .m-lang__chev { transform: rotate(180deg); }
.site-page .m-lang__panel {
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  width: 260px;
  background: var(--white);
  border-radius: 20px;
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(0, 0, 0, 0.06);
  padding: 10px;
}
.site-page .m-lang__opt {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: 14px;
  font-weight: 700;
  color: #0b0b0c;
  text-decoration: none;
}
.site-page .m-lang__opt + .m-lang__opt { margin-top: 6px; }
.site-page .m-lang__opt--active { background: rgba(0, 0, 0, 0.05); }
.site-page .m-lang__opt .f { font-size: 1.2rem; width: 28px; text-align: center; }
.site-page .m-burger {
  width: 20px;
  height: 14px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
}
.site-page .m-burger span {
  height: 2px;
  background: var(--ink);
  border-radius: 1px;
  transition: transform 0.22s ease, opacity 0.18s ease;
}
.site-page .m-nav-toggle {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}
.site-page .m-nav-toggle:checked ~ .m-header .m-burger span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.site-page .m-nav-toggle:checked ~ .m-header .m-burger span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0.6);
}
.site-page .m-nav-toggle:checked ~ .m-header .m-burger span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}
.site-page .m-menu {
  position: fixed;
  inset: 0;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  background: rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 18px 16px 24px;
  transition: opacity 0.22s ease, visibility 0s linear 0.22s;
}
.site-page .m-nav-toggle:checked ~ .m-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity 0.22s ease;
}
.site-page .m-menu__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  transform: translateY(-8px);
  opacity: 0;
  transition: transform 0.22s ease, opacity 0.22s ease;
}
.site-page .m-nav-toggle:checked ~ .m-menu .m-menu__top {
  transform: translateY(0);
  opacity: 1;
}
.site-page .m-menu__brand {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--white);
  letter-spacing: 0.06em;
}
.site-page .m-menu__close {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  color: var(--white);
  cursor: pointer;
}
.site-page .m-menu__close svg { width: 22px; height: 22px; display: block; }
.site-page .m-menu__panel {
  background: var(--white);
  border-radius: 22px;
  padding: 12px 8px 20px;
  transform: translateY(12px);
  opacity: 0;
  transition: transform 0.26s ease 0.04s, opacity 0.26s ease 0.04s;
}
.site-page .m-nav-toggle:checked ~ .m-menu .m-menu__panel {
  transform: translateY(0);
  opacity: 1;
}
.site-page .m-menu__item {
  display: block;
  padding: 16px 18px;
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0.04em;
  color: #111;
  border-radius: 14px;
  text-decoration: none;
}
.site-page .m-menu__item--primary { color: var(--ios); }
.site-page .m-menu__actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 12px;
  padding: 0 10px;
}
.site-page .m-menu__btn {
  display: grid;
  place-items: center;
  min-height: 52px;
  border-radius: 14px;
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--line);
  color: #111;
  background: var(--white);
  text-decoration: none;
}
.site-page .m-menu__btn--solid {
  background: #111;
  color: var(--white);
  border-color: #111;
}
.site-page .m-menu__btn--account {
  display: flex;
  flex-direction: row;
  gap: 12px;
  padding: 12px 16px;
  place-items: unset;
  justify-content: flex-start;
  align-items: center;
  width: 100%;
  box-sizing: border-box;
}
.site-page .m-menu__account-label {
  flex: 1;
  min-width: 0;
  text-align: left;
  text-transform: none;
  letter-spacing: 0.01em;
  font-weight: 600;
  font-size: 0.8125rem;
  line-height: 1.3;
  align-self: center;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.site-page .m-user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  line-height: 1;
  box-sizing: border-box;
  background: linear-gradient(135deg, #4285f4 0%, #1b46e0 100%);
  color: var(--white);
  font-weight: 800;
  font-size: 1.05rem;
  display: grid;
  place-items: center;
  border: 2px solid rgba(0, 0, 0, 0.08);
  flex-shrink: 0;
  align-self: center;
}
.site-page .m-header__avatar-link {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4285f4, #34a853);
  color: var(--white);
  font-weight: 800;
  font-size: 0.9rem;
  display: grid;
  place-items: center;
  text-decoration: none;
  margin-right: 4px;
  border: 2px solid rgba(0, 0, 0, 0.1);
}

/* —— Desktop header —— */
.site-page .d-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--white);
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}
.site-page .d-header__row {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.site-page .d-header__logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  line-height: 0;
  flex-shrink: 0;
}
.site-page .d-nav {
  display: flex;
  gap: 28px;
  flex: 1;
  justify-content: center;
}
.site-page .d-nav a {
  color: var(--muted);
  font-size: 0.9375rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-decoration: none;
  white-space: nowrap;
}
.site-page .d-nav a:hover {
  color: var(--ink);
  text-decoration: underline;
}
.site-page .d-header__right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.site-page .d-lang {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
}
.site-page .d-lang .fi { font-size: 1rem; line-height: 1; }
.site-page .d-login {
  color: var(--muted);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
}
.site-page .d-login:hover { color: var(--ink); }
.site-page .d-signup {
  display: inline-block;
  background: var(--ios);
  color: var(--white);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 10px 22px;
  border-radius: 999px;
  text-decoration: none;
  white-space: nowrap;
}
.site-page .d-signup:hover { filter: brightness(1.05); }
.site-page .d-user-hit {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  border-radius: 999px;
}
.site-page .d-user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4285f4 0%, #1b46e0 100%);
  color: var(--white);
  font-weight: 700;
  font-size: 1rem;
  display: grid;
  place-items: center;
  border: 2px solid rgba(0, 0, 0, 0.08);
}
