/* ==========================================================
   SITE — shared normal-page shell (light surfaces)
   ========================================================== */

:root {
  --site-surface: #ffffff;
  --site-text: #111111;
  --site-text-muted: rgba(17, 17, 17, 0.62);
  --site-border: rgba(17, 17, 17, 0.1);
  --site-max-width: 72rem;
  --site-reading-width: 42rem;
  --site-header-height: 5rem;
}

html.site-page {
  background: var(--site-surface);

  scroll-behavior: smooth;
}

.visually-hidden {
  position: absolute;

  width: 1px;
  height: 1px;

  margin: -1px;
  padding: 0;

  overflow: hidden;

  clip: rect(0, 0, 0, 0);
  white-space: nowrap;

  border: 0;
}

body.site-page {
  background: var(--site-surface);

  color: var(--site-text);

  font-family: var(--body-font);

  overflow-x: hidden;

  min-height: 100vh;
}

body.site-page::before {
  display: none;
}

.site-page .site-header {
  position: sticky;

  top: 0;

  z-index: 40;

  isolation: isolate;

  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;

  padding: clamp(1rem, 2.5vw, 1.5rem) clamp(1.25rem, 4vw, 3rem);

  background: rgba(255, 255, 255, 0.96);

  border-bottom: 1px solid var(--site-border);

  backdrop-filter: blur(8px);
}

.site-page .site-header__brand {
  flex-shrink: 0;

  margin: 0;
  padding: 0;

  border: none;

  background: transparent;

  color: var(--site-text);

  font-family: var(--heading-font);
  font-size: clamp(1.1rem, 2.2vw, 1.45rem);
  font-weight: 400;
  letter-spacing: 0.06em;
  line-height: 1;
  text-decoration: none;
  text-transform: uppercase;
}

.site-page .site-header__desktop {
  display: flex;

  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.5rem);
}

.site-page .site-header__menu {
  display: none;
}

.site-page .site-header__nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(0.55rem, 1.5vw, 1.1rem);
}

.site-page .site-header a.site-header__link {
  pointer-events: auto;
}

.site-page .site-header__link {
  min-height: 2.75rem;

  display: inline-flex;
  align-items: center;

  margin: 0;
  padding: 0.35rem 0.15rem;

  border: none;

  background: transparent;

  color: var(--site-text-muted);

  font-family: var(--body-font);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  line-height: 1.2;
  text-align: left;
  text-decoration: none;
  text-transform: uppercase;

  cursor: pointer;
}

.site-page .site-header__link:hover,
.site-page .site-header__link:focus-visible {
  color: var(--site-text);
}

.site-page .site-header__link[aria-current="page"] {
  color: var(--purple);
}

.site-page .site-header__link:disabled,
.site-page .site-header__link[aria-disabled="true"] {
  opacity: 0.42;

  cursor: default;
}

.site-page .site-header__membership {
  min-height: 2.75rem;

  margin: 0;
  padding: 0.45rem 0.85rem;

  border: 1px solid var(--site-border);
  border-radius: 999px;

  background: transparent;

  color: var(--site-text);

  font-family: var(--body-font);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  line-height: 1.2;
  text-transform: uppercase;

  cursor: pointer;
}

.site-page .site-header__membership:disabled,
.site-page .site-header__membership[aria-disabled="true"] {
  opacity: 0.42;

  cursor: default;
}

.site-page .site-header__brand:focus-visible,
.site-page .site-header__link:focus-visible,
.site-page .site-header__membership:focus-visible {
  outline: 2px solid var(--purple);
  outline-offset: 4px;
}

.site-page .site-footer {
  max-width: var(--site-max-width);
  margin: 0 auto;

  padding: clamp(2rem, 5vw, 3rem) clamp(1.25rem, 4vw, 3rem) clamp(2.5rem, 6vw, 4rem);

  border-top: 1px solid var(--site-border);
}

.site-page .site-footer__main {
  display: grid;
  gap: 0.35rem;
}

.site-page .site-footer__brand {
  margin: 0;

  font-family: var(--heading-font);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  line-height: 1;
  text-transform: uppercase;
}

.site-page .site-footer__tagline {
  margin: 0;

  color: var(--site-text-muted);

  font-size: 0.95rem;
  line-height: 1.5;
}

.site-page .site-footer__utility {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;

  margin-top: 1.25rem;
}

.site-page .site-footer__utility-item {
  color: var(--site-text-muted);

  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-page a.site-footer__utility-item {
  text-decoration: none;
}

.site-page a.site-footer__utility-item:hover,
.site-page a.site-footer__utility-item:focus-visible {
  color: var(--site-text);
}

.site-page .site-footer__copyright {
  margin: 1.25rem 0 0;

  color: var(--site-text-muted);

  font-size: 0.82rem;
}

@media (max-width: 52rem) {
  .site-page .site-header__desktop {
    display: none;
  }

  .site-page .site-header__menu {
    position: relative;
    z-index: 1;

    display: block;
  }

  .site-page .site-header__menu-toggle {
    min-height: 2.75rem;

    padding: 0.35rem 0.15rem;

    border: none;

    background: transparent;

    color: var(--site-text);

    font-family: var(--body-font);
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;

    cursor: pointer;
  }

  .site-page .site-header__panel {
    position: absolute;
    z-index: 2;

    top: calc(100% + 0.35rem);
    left: auto;
    right: 0;

    box-sizing: border-box;
    width: calc(100dvw - (2 * clamp(1.25rem, 4vw, 3rem)));
    max-width: calc(100dvw - (2 * clamp(1.25rem, 4vw, 3rem)));

    padding: 1rem;

    border: 1px solid var(--site-border);
    border-radius: 0.75rem;

    background: var(--site-surface);

    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.08);
  }

  .site-page .site-header__menu:not([open]) .site-header__panel {
    display: none;
  }

  .site-page .site-header__nav {
    flex-direction: column;
    align-items: flex-start;
  }

  /* Inactive panel items are disabled buttons; Safari grays them via
     -webkit-text-fill-color regardless of color/opacity overrides on :disabled. */
  .site-page .site-header__menu .site-header__panel .site-header__link:not([aria-current="page"]),
  .site-page .site-header__menu .site-header__panel .site-header__membership {
    opacity: 1;

    color: var(--site-text);

    -webkit-text-fill-color: var(--site-text);
  }

  .site-page .site-header__menu .site-header__panel .site-header__membership {
    padding: 0.35rem 0.15rem;

    border: none;
    border-radius: 0;
  }
}