/* Containers, sections, grid scaffolding, nav, footer */

.container {
  width: min(100% - 2 * var(--gutter), var(--max-w));
  margin-inline: auto;
}

.section { padding-block: clamp(4rem, 9vw, 8rem); }
.section--linen { background: var(--linen); }
.section--ink { background: var(--ink); color: var(--gallery); }
.section--tight { padding-block: clamp(2.5rem, 5vw, 4rem); }

main { display: block; }

/* ---------------------------------------------------------------- Nav */

.site-nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  /* Always white — the bar reads as a fixed menu, not something that appears
     once you start scrolling. Applies on every page. */
  background: var(--gallery);
  border-bottom: 1px solid rgba(20, 20, 20, 0.12);
}
.site-nav__inner {
  width: min(100% - 2 * var(--gutter), var(--max-w));
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.site-nav__logo { flex: 0 0 auto; display: block; }
.site-nav__logo img {
  height: 3rem; width: auto;
  /* The brand logo asset is white; render it ink on light nav bars */
  filter: brightness(0);
}

/* The nav is permanently white on every page, so the logo and links stay ink
   at all times — no overlay/scrolled variant. */

.site-nav__links {
  display: none;
  list-style: none;
  margin: 0; padding: 0;
  margin-left: auto;
  gap: clamp(1rem, 2.5vw, 2rem);
  align-items: center;
}
.site-nav__links a {
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  /* Tab state reads as a rule under the label, not a highlight through it */
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-size: 0% 2px;
  background-position: 0 100%;
  padding-bottom: 0.35em;
  transition: background-size 0.3s var(--ease-out-expo);
}
.site-nav__links a:hover, .site-nav__links a:focus-visible { background-size: 100% 2px; }
.site-nav__links a[aria-current="page"] {
  background-image: linear-gradient(var(--tupa-red), var(--tupa-red));
  background-size: 100% 2px;
}

.rsvp-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  background: var(--tupa-red);
  color: #fff;
  border: 0;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  padding: 0.7em 1.4em;
  border-radius: 99px;
  white-space: nowrap;
  transition: background-color 0.25s ease, transform 0.25s var(--ease-out-expo);
}
.rsvp-pill:hover { background: #d42230; transform: translateY(-1px); }
.rsvp-pill[aria-disabled="true"] {
  cursor: default;
  pointer-events: none;
}
.site-nav .rsvp-pill { margin-left: auto; }

.nav-burger {
  appearance: none;
  background: none;
  border: 0;
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  cursor: pointer;
  /* While the Tickets pill is commented out, this keeps the burger on the right.
     The + rule below restores the original 0.25rem gap once the pill is back. */
  margin-left: auto;
}
.site-nav .rsvp-pill + .nav-burger { margin-left: 0.25rem; }
.nav-burger span {
  display: block;
  width: 24px; height: 2px;
  background: currentColor;
  position: relative;
}
.nav-burger span::before, .nav-burger span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 24px; height: 2px;
  background: currentColor;
  transition: transform 0.3s var(--ease-out-expo), top 0.3s var(--ease-out-expo);
}
.nav-burger span::before { top: -7px; }
.nav-burger span::after { top: 7px; }

@media (min-width: 60em) {
  .site-nav__links { display: flex; }
  .nav-burger { display: none; }
  .site-nav .rsvp-pill { margin-left: 0; }
}
/* Eight tabs (Home through The Cause) only breathe on wider desktops */
@media (min-width: 60em) and (max-width: 78em) {
  .site-nav__inner { gap: 1.25rem; }
  .site-nav__links { gap: 0.85rem; }
  .site-nav__links a { font-size: 0.8125rem; }
}

/* Mobile overlay menu — the red screenshot moment */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: var(--tupa-red);
  color: #fff;
  display: flex;
  flex-direction: column;
  padding: calc(var(--nav-h) + 1rem) var(--gutter) 2rem;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.4s var(--ease-out-expo), visibility 0s linear 0.4s;
}
.mobile-menu.is-open {
  visibility: visible;
  opacity: 1;
  transition: opacity 0.4s var(--ease-out-expo);
}
.mobile-menu__close {
  position: absolute;
  top: 0.9rem; right: var(--gutter);
  appearance: none; background: none; border: 0;
  color: #fff;
  width: 44px; height: 44px;
  font-size: 1.75rem;
  cursor: pointer;
  line-height: 1;
}
.mobile-menu__links {
  list-style: none;
  margin: auto 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(0.4rem, 1.6vh, 1rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  min-height: 0;
  scrollbar-width: none;
}
.mobile-menu__links::-webkit-scrollbar { display: none; }
.mobile-menu__links a {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 5.4vh, 3rem);
  line-height: 1.05;
  color: #fff;
  text-decoration: none;
  transition: opacity 0.5s var(--ease-out-expo), transform 0.5s var(--ease-out-expo);
}
.mobile-menu:not(.is-open) .mobile-menu__links a {
  opacity: 0;
  transform: translateY(0.4em);
}
.mobile-menu.is-open .mobile-menu__links a { opacity: 1; transform: none; }
.mobile-menu__links a:hover { color: var(--tupa-yellow); }
.mobile-menu__links a[aria-current="page"] {
  text-decoration: underline;
  text-decoration-thickness: 3px;
  text-underline-offset: 0.14em;
}
.mobile-menu .rsvp-pill {
  background: #fff;
  color: var(--tupa-red);
  align-self: stretch;
  justify-content: center;
  padding-block: 1em;
  margin-bottom: env(safe-area-inset-bottom);
}

body.menu-open, body.overlay-open { overflow: hidden; }

/* ------------------------------------------------------------- Footer */

.site-footer {
  background: var(--ink);
  color: var(--gallery);
}
.site-footer__main {
  display: grid;
  gap: 3rem;
  padding-block: clamp(3rem, 6vw, 5rem);
}
@media (min-width: 48em) {
  .site-footer__main { grid-template-columns: 1fr 1fr; align-items: start; }
}
.site-footer .date-lockup { color: var(--gallery); }
.site-footer__venue { font-style: normal; line-height: 1.7; color: #cfcec9; }
.site-footer__venue strong { color: var(--gallery); }
.site-footer__sponsors {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem 3rem;
  align-items: center;
  justify-content: center;
  padding-block: 2.5rem;
  border-top: 1px solid rgba(250, 250, 247, 0.15);
}
.site-footer__sponsors img {
  height: 2.5rem; width: auto;
  filter: grayscale(1) invert(1) brightness(1.6);
  opacity: 0.75;
  transition: filter 0.3s ease, opacity 0.3s ease;
}
/* Avoid a white box on hover for logos that are already transparent PNGs */
.site-footer__sponsors a:hover img, .site-footer__sponsors a:focus-visible img {
  filter: grayscale(1) invert(1) brightness(1.6);
  opacity: 1;
}
.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: space-between;
  padding-block: 1.5rem;
  border-top: 1px solid rgba(250, 250, 247, 0.15);
  font-size: 0.8125rem;
  color: var(--stone);
}
.site-footer__legal a { color: inherit; }