:root {
  --site-shell-height: 56px;
  --site-shell-bg: var(--surface, #ffffff);
  --site-shell-text: var(--text, #1f2937);
  --site-shell-border: var(--border, #e5e7eb);
  --site-shell-accent: var(--primary, #2563eb);
  --site-shell-accent-text: #ffffff;
  --site-auth-bg: #ffffff;
  --site-auth-text: #1f2937;
}

.site-shell {
  position: absolute;
  inset: 0 0 auto;
  z-index: 3000;
  height: calc(var(--site-shell-height) + env(safe-area-inset-top));
  padding: env(safe-area-inset-top) max(12px, env(safe-area-inset-right)) 0 max(12px, env(safe-area-inset-left));
  background: transparent;
  color: var(--site-shell-text);
  border: 0;
  pointer-events: none;
}

.site-shell__inner {
  width: 100%;
  height: var(--site-shell-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.site-shell__nav,
.site-shell__auth {
  min-width: 0;
  display: flex;
  align-items: center;
  pointer-events: auto;
}

.site-shell__nav {
  flex: 1 1 auto;
}

.site-shell__auth {
  position: static;
  flex: 0 1 auto;
  justify-content: flex-end;
}

.site-shell__back {
  min-height: 38px;
  max-width: 100%;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 12px;
  border: 1px solid var(--site-shell-border);
  border-radius: 10px;
  background: transparent;
  color: var(--site-shell-text);
  font: 600 14px/1.2 system-ui, sans-serif;
  text-decoration: none;
  white-space: nowrap;
}

.site-shell__back:hover {
  border-color: var(--site-shell-accent);
  color: var(--site-shell-accent);
  text-decoration: none;
}

.site-shell__back--home {
  background: var(--site-shell-accent);
  border-color: var(--site-shell-accent);
  color: var(--site-shell-accent-text);
}

.site-shell__back--home:hover {
  filter: brightness(.96);
  color: var(--site-shell-accent-text);
}

.site-shell-spacer {
  flex: 0 0 calc(var(--site-shell-height) + env(safe-area-inset-top));
  width: 100%;
  height: calc(var(--site-shell-height) + env(safe-area-inset-top));
}

.site-shell__auth .login-status {
  position: static !important;
  display: flex;
  align-items: center;
  min-width: 0;
  padding: 3px 4px 3px 9px;
  background: var(--site-auth-bg);
  border: 1px solid var(--site-shell-border);
  border-radius: 10px;
  box-shadow: none;
  color: var(--site-auth-text);
  font: 500 13px/1.2 system-ui, sans-serif;
}

.site-shell__auth #loginText {
  max-width: 150px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-shell__auth #loginBtn,
.site-shell__auth #adminLink {
  width: auto;
  min-height: 36px;
  margin-left: 8px !important;
  margin-top: 0 !important;
  padding: 6px 10px;
  border-style: solid;
  border-width: 1px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  border-color: var(--site-shell-accent);
  background: var(--site-shell-accent);
  color: var(--site-shell-accent-text);
}

.site-shell__auth #adminLink {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  border-color: var(--site-shell-border);
  background: transparent;
  color: var(--site-auth-text);
}

.site-shell__auth #adminLink[hidden] {
  display: none;
}

.site-shell__auth #loginBtn:hover,
.site-shell__auth #adminLink:hover {
  filter: brightness(.96);
}

.site-shell__back:focus-visible,
.site-shell__auth #loginBtn:focus-visible,
.site-shell__auth #adminLink:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--site-shell-accent) 35%, transparent);
  outline-offset: 2px;
}

.site-shell-spacer + .search-page,
.site-shell-spacer + .map-page {
  height: calc(100vh - var(--site-shell-height) - env(safe-area-inset-top));
  min-height: 0;
}

body.site-full-height {
  height: 100vh;
  min-height: 0;
}

body.site-full-height > .page {
  height: calc(100vh - var(--site-shell-height) - env(safe-area-inset-top));
  min-height: 0;
}

@media (max-width: 520px) {
  :root {
    --site-shell-height: 50px;
  }

  .site-shell {
    padding-right: max(8px, env(safe-area-inset-right));
    padding-left: max(8px, env(safe-area-inset-left));
  }

  .site-shell__inner {
    gap: 8px;
  }

  .site-shell__back {
    min-height: 36px;
    padding: 7px 10px;
    font-size: 13px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .site-shell__auth #loginText {
    max-width: 72px;
  }

  .site-shell__auth .login-status[data-logged-in="false"] #loginText {
    display: none;
  }

  .site-shell__auth #loginBtn,
  .site-shell__auth #adminLink {
    min-height: 34px;
    margin-left: 6px !important;
    padding: 5px 8px;
    font-size: 12px;
  }
}