/* MTCH Signal masthead. Original logo paths and clear space stay intact. */
.signal-header,
.signal-header * {
  box-sizing: border-box;
}
.signal-header {
  position: sticky;
  top: 0;
  z-index: 40;
  width: 100%;
  background: var(--mtch-background);
  border-bottom: 1px solid color-mix(in srgb, var(--mtch-text) 18%, transparent);
  font-family: 'Space Grotesk', sans-serif;
}
.site-header.signal-header {
  background: var(--mtch-background);
  backdrop-filter: none;
}
html[data-mtch-brand='signal'] {
  --mtch-page-width: 1600px;
  --mtch-page-gutter: 48px;
}
.signal-header .signal-header__bar,
.page-content > .container {
  box-sizing: border-box;
  width: 100%;
  max-width: var(--mtch-page-width);
  padding-inline: var(--mtch-page-gutter);
}
.signal-header .signal-header__menu {
  max-width: var(--mtch-page-width);
  margin-inline: auto;
  padding-inline: var(--mtch-page-gutter);
}
@media (max-width: 1100px) {
  html[data-mtch-brand='signal'] {
    --mtch-page-gutter: 32px;
  }
}
@media (max-width: 800px) {
  html[data-mtch-brand='signal'] {
    --mtch-page-gutter: 28px;
  }
}
@media (max-width: 580px) {
  html[data-mtch-brand='signal'] {
    --mtch-page-gutter: 20px;
  }
}
.signal-header__bar {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  max-width: var(--mtch-page-width);
  min-height: 88px;
  margin-inline: auto;
  padding: 6px var(--mtch-page-gutter);
}
.signal-brand {
  display: block;
  width: 208px;
  flex: 0 0 auto;
}
.signal-brand img {
  display: block;
  width: 100%;
  height: auto;
  max-height: none;
}
.signal-brand .signal-brand__dark {
  display: none;
}
[data-theme='dark'] .signal-brand__light {
  display: none;
}
[data-theme='dark'] .signal-brand .signal-brand__dark {
  display: block;
}
.signal-header a {
  color: var(--mtch-text);
  text-decoration: none;
}
.signal-header__nav {
  display: flex;
  align-items: center;
  justify-self: center;
  gap: 28px;
  white-space: nowrap;
}
.signal-header__nav a {
  position: relative;
  padding-block: 13px;
  font-size: 14px;
  font-weight: 500;
}
.signal-header__nav a::after {
  content: '';
  position: absolute;
  inset: auto 0 7px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 160ms ease;
}
.signal-header__nav a:hover::after,
.signal-header__nav a[aria-current='page']::after {
  transform: scaleX(1);
}
.signal-header__actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 12px;
  white-space: nowrap;
}
.signal-header form {
  margin: 0;
}
.signal-header button {
  font: inherit;
}
.signal-header__login,
.signal-header__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  min-height: 46px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.3;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 160ms ease;
}
.signal-header__login {
  background: transparent;
  color: var(--mtch-text);
}
.signal-header__login:hover {
  background: var(--mtch-surface);
  color: var(--mtch-text);
  text-decoration: none;
}
.signal-header a.signal-header__cta {
  background: #f2ff00;
  color: #101010;
  border-color: #f2ff00;
}
.signal-header a.signal-header__cta:hover {
  background: #e1ec00;
  border-color: #e1ec00;
  color: #101010;
  text-decoration: none;
}
.signal-header__cta span {
  font-size: 20px;
  line-height: 1;
}
.signal-theme,
.signal-header__utility,
.signal-header .signal-header__toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  color: var(--mtch-text);
  border: 1px solid transparent;
  border-radius: 50%;
  cursor: pointer;
  transition: background-color 160ms ease;
}
.signal-theme:hover,
.signal-header__utility:hover,
.signal-header .signal-header__toggle:hover {
  background: var(--mtch-surface);
  color: var(--mtch-text);
}
.signal-header__utility svg {
  width: 20px;
  height: 20px;
}
.signal-theme__sun {
  display: none;
}
[data-theme='dark'] .signal-theme__sun {
  display: block;
}
[data-theme='dark'] .signal-theme__moon {
  display: none;
}
.signal-header .signal-header__toggle {
  display: none;
  border-color: color-mix(in srgb, var(--mtch-text) 20%, transparent);
}
.signal-menu-icon {
  width: 18px;
  height: 12px;
  position: relative;
  border-top: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
}
.signal-menu-icon::after {
  content: '';
  position: absolute;
  top: 4px;
  left: 0;
  width: 100%;
  border-top: 1.5px solid currentColor;
}
.signal-menu-close { display: none; width: 24px; height: 24px; }
.signal-menu-close svg { display: block; width: 24px; height: 24px; }
[aria-expanded='true'] .signal-menu-icon { display: none; }
[aria-expanded='true'] .signal-menu-close { display: block; }
.signal-header__menu {
  display: none;
}
.signal-header a:focus-visible,
.signal-header button:focus-visible {
  outline: 2px solid var(--mtch-text);
  outline-offset: 4px;
}
@media (max-width: 1279px) {
  .signal-header__bar {
    min-height: 80px;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    padding: 5px var(--mtch-page-gutter);
  }
  .signal-header .signal-brand {
    width: min(184px, calc(100vw - 100px));
  }
  .signal-header__nav,
  .signal-header__actions {
    display: none;
  }
  .signal-header .signal-header__toggle {
    display: inline-flex;
  }
  .signal-header__menu.is-open:not([hidden]) {
    display: block;
    max-height: calc(100dvh - 80px);
    overflow-y: auto;
    padding: 16px var(--mtch-page-gutter) 24px;
    border-top: 1px solid color-mix(in srgb, var(--mtch-text) 14%, transparent);
  }
  .signal-header__menu-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
  }
  .signal-header__menu-nav a {
    display: block;
    padding-block: 13px;
    min-height: 48px;
    font-size: 20px;
    font-weight: 500;
  }
  .signal-header__menu-nav a[aria-current='page'] {
    text-decoration: underline;
    text-underline-offset: 6px;
  }
  .signal-header__menu-tools {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-block: 12px 20px;
    padding-block: 12px;
    border-block: 1px solid color-mix(in srgb, var(--mtch-text) 14%, transparent);
    color: var(--mtch-muted);
    font-size: 14px;
  }
  .signal-header__menu-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
  }
  .signal-header__menu-actions > .signal-header__cta {
    flex: 1;
  }
  .signal-header__menu-actions .signal-header__login {
    border-color: var(--mtch-line);
  }
}
@media (prefers-reduced-motion: reduce) {
  .signal-header *,
  .signal-header *::after {
    transition: none;
  }
}

/* The same authenticated identity and native logout action in both headers. */
.signal-header__session {
  position: relative;
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: 0;
}
.signal-header__account {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
  max-width: 200px;
  padding: 5px 8px;
  border-radius: 8px;
  color: var(--mtch-text);
  background: transparent;
  border: 1px solid transparent;
  text-align: left;
  cursor: pointer;
}
.signal-header__account:hover {
  background: var(--mtch-surface);
}
.signal-header__account svg {
  flex: 0 0 22px;
}
.signal-header__identity {
  display: flex;
  flex-direction: column;
  min-width: 0;
  gap: 2px;
  line-height: 1.3;
}
.signal-header__identity > span {
  color: var(--mtch-muted);
  font-size: 11px;
}
.signal-header__identity strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
  font-weight: 500;
}
.signal-header__mobile-account {
  display: none;
  color: var(--mtch-text);
  background: transparent;
  cursor: pointer;
}
.signal-header__session--compact { display: none; }
.signal-header__account .signal-header__account-chevron { flex: 0 0 14px; }
.signal-account-menu[hidden] { display: none; }
.signal-account-menu { position: absolute; top: calc(100% + 8px); right: 0; z-index: 50; width: 260px; max-width: calc(100vw - 40px); padding: 6px; color: var(--mtch-text); background: var(--mtch-background); border: 1px solid var(--mtch-line); border-radius: 10px; box-shadow: 0 8px 24px #00000014; white-space: normal; }
.signal-account-menu__identity { display: grid; gap: 4px; padding: 12px; margin-bottom: 4px; border-bottom: 1px solid var(--mtch-line); overflow-wrap: anywhere; font-size: 13px; }
.signal-account-menu__identity > span { color: var(--mtch-muted); font-size: 11px; }
.signal-account-menu__identity strong { font-weight: 500; }
.signal-header .signal-account-menu [role='menuitem'] { display: flex; align-items: center; gap: 10px; width: 100%; min-height: 44px; padding: 10px 12px; color: var(--mtch-text); background: transparent; border: 0; border-radius: 5px; font: inherit; font-size: 14px; text-align: left; text-decoration: none; cursor: pointer; }
.signal-header .signal-account-menu [role='menuitem']:is(:hover,:focus-visible) { background: var(--mtch-surface); outline-offset: -2px; }
.signal-account-menu [role='menuitem'] svg { flex: 0 0 20px; }
.signal-header--studio .signal-header__bar,.signal-header--studio .signal-header__menu { max-width: 1800px; padding-inline: 20px 44px; }
@media (max-width: 1200px) {
  .signal-header--studio .signal-header__bar,.signal-header--studio .signal-header__menu { padding-inline: 14px 28px; }
}
@media (max-width: 900px) {
  .signal-header--studio .signal-header__bar,.signal-header--studio .signal-header__menu { padding-inline: var(--mtch-page-gutter); }
}
@media (max-width: 1279px) {
  .signal-header .signal-header__session--compact { display: flex; }
  .signal-header__session--compact .signal-account-menu { right: -52px; }
  .signal-header--authenticated .signal-header__bar {
    grid-template-columns: minmax(0, 1fr) auto auto;
  }
  .signal-header--authenticated .signal-brand {
    width: min(184px, calc(100vw - 164px));
  }
  .signal-header .signal-header__mobile-account {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 1px solid color-mix(in srgb, var(--mtch-text) 20%, transparent);
    border-radius: 50%;
  }
  .signal-header__mobile-account:hover {
    background: var(--mtch-surface);
  }
  .signal-header__menu-actions .signal-header__session {
    flex: 1 0 100%;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 8px;
  }
  .signal-header__menu-actions .signal-header__account {
    max-width: calc(100% - 110px);
    padding-inline: 0;
  }
}

/* Reuse the existing language switcher in the standalone Signal studio too. */
.signal-header--multilingual .signal-header__bar { grid-template-columns: auto minmax(0, 1fr) auto auto; }
.signal-header__language { min-width: 0; }
.signal-header .language-switcher { position: relative; display: inline-flex; align-items: center; }
.signal-header .language-switcher__trigger, .signal-header .language-switcher__panel { display: none; }
.signal-header .language-switcher--enhanced .language-switcher__trigger { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 10px 12px; color: var(--mtch-text); background: var(--mtch-background); border: 1px solid var(--mtch-line); border-radius: 8px; font: inherit; font-size: 13px; cursor: pointer; }
.signal-header .language-switcher__trigger:hover { background: var(--mtch-surface); }
.signal-header .language-switcher__trigger-icon { width: 16px; height: 16px; }
.signal-header .language-switcher__trigger-chevron { width: 14px; height: 14px; }
.signal-header .language-switcher__panel { position: absolute; top: calc(100% + 8px); right: 0; z-index: 50; min-width: 160px; padding: 4px; color: var(--mtch-text); background: var(--mtch-background); border: 1px solid var(--mtch-line); border-radius: 8px; }
.signal-header .language-switcher--enhanced .language-switcher__panel:not([hidden]) { display: block; }
.signal-header .language-switcher__listbox, .signal-header .language-switcher__fallback-list { list-style: none; margin: 0; padding: 0; }
.signal-header .language-switcher__option { display: flex; gap: 8px; align-items: center; min-height: 44px; padding: 10px 12px; cursor: pointer; border-radius: 4px; font-size: 14px; }
.signal-header .language-switcher__option:hover, .signal-header .language-switcher__option:focus { background: var(--mtch-surface); outline: 2px solid var(--mtch-text); outline-offset: -2px; }
.signal-header .language-switcher__option-check { width: 18px; height: 18px; }
.signal-header .language-switcher__option--active .language-switcher__option-check::before { content: '✓'; }
.signal-header .language-switcher__option-check i, .signal-header .language-switcher__option-check svg { display: none; }
.signal-header .language-switcher__form { display: none; }
.signal-header .language-switcher__fallback-form button { padding: 8px; background: transparent; color: var(--mtch-text); border: 0; }
@media (max-width: 1279px) {
  .signal-header--multilingual .signal-header__bar { grid-template-columns: minmax(0, 1fr) auto auto; }
  .signal-header--multilingual.signal-header--authenticated .signal-header__bar { grid-template-columns: minmax(0, 1fr) auto auto auto; }
  .signal-header--multilingual .signal-brand { width: min(184px, calc(100vw - 144px)); }
  .signal-header--multilingual.signal-header--authenticated .signal-brand { width: min(184px, calc(100vw - 204px)); }
  .signal-header .language-switcher--enhanced .language-switcher__trigger { width: 44px; height: 44px; justify-content: center; padding: 8px; }
  .signal-header .language-switcher__trigger-icon, .signal-header .language-switcher__trigger-chevron { display: none; }
  .signal-header .language-switcher__trigger-label { display: inline-block; font-size: 0; }
  .signal-header .language-switcher__trigger-label::before { content: attr(data-short-label); text-transform: uppercase; font-size: 13px; }
}