/* ==========================================================================
   OVERLAY MENU
   ==========================================================================
   Desktop: a sheet drops from the top over a dark scrim, stopping short of the
   viewport so the page stays visible underneath — present, not swallowed.
   A primary rail on the left drives a detail pane on the right.

   Narrow: the same markup becomes a two-level drawer. The detail pane slides
   over the rail and the back button appears. Two levels only.

   State classes come from assets/js/navigation.js:
     .is-open           sheet is down
     .is-detail-open    narrow screens, second level showing
   ========================================================================== */

.menu {
  position: fixed;
  inset: 0;
  z-index: var(--z-menu);
}

.menu[hidden] { display: none; }

/* -- Scrim ---------------------------------------------------------------- */

.menu__scrim {
  position: absolute;
  inset: 0;
  background-color: var(--veil-scrim);
  opacity: 0;
  transition: opacity var(--dur) var(--ease-out);
}

.menu.is-open .menu__scrim { opacity: 1; }

@supports (backdrop-filter: blur(3px)) {
  .menu__scrim { backdrop-filter: blur(3px); }
}

/* -- Sheet ---------------------------------------------------------------- */

.menu__sheet {
  position: relative;
  display: flex;
  flex-direction: column;
  height: min(88vh, 100%);
  max-height: 100%;
  background-color: var(--surface);
  box-shadow: var(--shadow-panel);
  transform: translateY(-101%);
  transition: transform var(--dur-slow) var(--ease-out);
  overflow: hidden;
}

.menu.is-open .menu__sheet { transform: none; }

@media (max-width: 1023px) {
  .menu__sheet { height: 100%; }
}

/* -- Body ----------------------------------------------------------------- */

.menu__body {
  flex: 1 1 auto;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding-top: calc(var(--masthead-h) + clamp(1.5rem, 4vw, 3.5rem));
  padding-bottom: clamp(2rem, 5vw, 4rem);
}

.menu__grid {
  display: grid;
  grid-template-columns: minmax(220px, 24%) minmax(0, 1fr);
  gap: clamp(2rem, 4vw, 5rem);
  align-items: start;
}

/* -- Primary rail --------------------------------------------------------- */

.menu__note {
  margin-bottom: var(--space-lg);
  color: var(--text-faint);
}

.menu__list { display: block; }

.menu__row + .menu__row { margin-top: 0.1rem; }

.menu__item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  width: 100%;
  padding: 0.42rem 0;

  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.3vw, 2.125rem);
  font-weight: var(--weight-display);
  letter-spacing: var(--track-display);
  line-height: 1.16;
  text-align: left;
  text-decoration: none;
  color: var(--text-strong);

  transition: color var(--dur-fast) var(--ease-out);
}

.menu__item-label {
  position: relative;
  display: inline-block;
  transition: transform var(--dur) var(--ease-out);
}

/* A short bronze rule slides out to the left of the active item. */
.menu__item-label::before {
  content: "";
  position: absolute;
  top: 50%;
  right: calc(100% + 0.6rem);
  width: clamp(0.75rem, 1.6vw, 1.5rem);
  height: 1px;
  background-color: var(--accent);
  transform: translateY(-50%) scaleX(0);
  transform-origin: right;
  transition: transform var(--dur) var(--ease-out);
}

.menu__item-mark {
  display: none;
  color: var(--text-faint);
  transition: transform var(--dur) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
}

.menu__item-mark svg { width: 1.1rem; height: 1.1rem; }

@media (hover: hover) {
  .menu__item:hover .menu__item-label,
  .menu__item.is-active .menu__item-label {
    transform: translateX(clamp(0.75rem, 1.6vw, 1.5rem));
  }

  .menu__item:hover .menu__item-label::before,
  .menu__item.is-active .menu__item-label::before { transform: translateY(-50%) scaleX(1); }
}

.menu__item.is-active { color: var(--text-strong); }

.menu__utility {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-md);
  margin-top: clamp(1.5rem, 3vw, 2.5rem);
  padding-top: clamp(1.5rem, 3vw, 2.5rem);
  border-top: var(--rule-width) solid var(--rule);
  font-size: var(--text-md);
  color: var(--text-muted);
}

.menu__cta {
  margin-top: var(--space-lg);
}

@media (min-width: 1024px) {
  .menu__cta { display: none; }
}

/* -- Detail pane ---------------------------------------------------------- */

.menu__detail { position: relative; }

.menu-panel[hidden] { display: none; }

.menu-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: start;
}

/* The pane fades up as it becomes active. Runs once, no layout thrash. */
@media (prefers-reduced-motion: no-preference) {
  .menu-panel:not([hidden]) {
    animation: ss-panel-in var(--dur) var(--ease-out) both;
  }
}

@keyframes ss-panel-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

.menu-panel__back { display: none; }

.menu-panel__cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: clamp(1.25rem, 2vw, 2.5rem);
  align-content: start;
}

.menu-panel__heading {
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-2xs);
  border-bottom: var(--rule-width) solid var(--rule);
}

.menu-panel__links {
  display: grid;
  gap: 0.55rem;
}

.menu-panel__link {
  display: inline-block;
  font-size: var(--text-md);
  line-height: 1.4;
  text-decoration: none;
  color: var(--text-muted);
  transition: color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}

.menu-panel__link:hover {
  color: var(--text-strong);
  transform: translateX(3px);
}

.menu-panel__more { margin-top: var(--space-md); }

.menu-panel__all {
  grid-column: 1 / -1;
  justify-self: start;
  margin-top: var(--space-sm);
}

/* -- Featured cards ------------------------------------------------------- */

.menu-panel__featured {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-md);
  width: clamp(260px, 26vw, 400px);
}

.menu-card {
  display: block;
  text-decoration: none;
  color: inherit;
}

.menu-card__body {
  display: block;
  padding-top: var(--space-2xs);
}

.menu-card__title {
  display: block;
  font-size: var(--text-md);
  line-height: 1.35;
  color: var(--text-strong);
}

.menu-card__caption {
  display: block;
  margin-top: 2px;
  font-size: var(--text-2xs);
  letter-spacing: var(--track-caps);
}

/* The columns come first. Featured imagery drops to one card, then goes
   entirely, so four column groups still sit side by side on a laptop. */
@media (max-width: 1560px) {
  .menu-panel__featured {
    grid-template-columns: minmax(0, 1fr);
    width: clamp(200px, 20vw, 260px);
  }

  .menu-panel__featured .menu-card:nth-child(n + 2) { display: none; }
}

@media (max-width: 1280px) {
  .menu-panel { grid-template-columns: minmax(0, 1fr); }
  .menu-panel__featured { display: none; }
}

/* -- Foot ----------------------------------------------------------------- */

.menu__foot {
  flex-shrink: 0;
  border-top: var(--rule-width) solid var(--rule);
  background-color: var(--surface);
}

.menu__foot-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm) var(--space-lg);
  padding-block: var(--space-md);
}

.menu__contact {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs) var(--space-lg);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.menu__contact-item { text-decoration: none; }

.menu__social {
  display: flex;
  gap: var(--space-md);
  color: var(--text-muted);
}

.menu__social a {
  display: block;
  transition: color var(--dur-fast) var(--ease-out);
}

.menu__social a:hover { color: var(--text-strong); }
.menu__social svg { width: 18px; height: 18px; }

/* -- Narrow screens: two-level drawer ------------------------------------- */

@media (max-width: 1023px) {
  .menu__body { padding-top: calc(var(--masthead-h) + var(--space-lg)); }

  .menu__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .menu__note { display: none; }

  .menu__row {
    border-bottom: var(--rule-width) solid var(--rule);
  }

  .menu__item {
    padding-block: var(--space-md);
    font-size: clamp(1.375rem, 5.5vw, 1.75rem);
  }

  .menu__item-mark { display: block; }

  .menu__item-label::before { content: none; }

  /* Level two slides over level one inside the sheet. */
  .menu__detail {
    position: absolute;
    inset: 0;
    z-index: 2;
    display: flex;
    flex-direction: column;
    background-color: var(--surface);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform var(--dur) var(--ease-out),
                visibility var(--dur) var(--ease-out);
  }

  .menu.is-detail-open .menu__detail {
    transform: none;
    visibility: visible;
  }

  .menu.is-detail-open .menu__body { overflow: hidden; }

  .menu-panel {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-lg);
    height: 100%;
    align-content: start;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: calc(var(--masthead-h) + var(--space-lg)) var(--gutter) var(--space-2xl);
  }

  .menu-panel__back {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2xs);
    padding-bottom: var(--space-md);
    margin-bottom: var(--space-sm);
    border-bottom: var(--rule-width) solid var(--rule);
    width: 100%;
    font-size: var(--text-2xs);
    font-weight: var(--weight-semi);
    letter-spacing: var(--track-caps);
    text-transform: uppercase;
    color: var(--text-strong);
  }

  .menu-panel__back svg { width: 1rem; height: 1rem; }

  .menu-panel__cols { grid-template-columns: minmax(0, 1fr); gap: var(--space-lg); }

  .menu-panel__links { gap: 0; }

  .menu-panel__link {
    padding-block: var(--space-sm);
    border-bottom: var(--rule-width) solid var(--rule);
    font-size: var(--text-body);
    color: var(--text);
    width: 100%;
  }

  .menu__foot-inner { justify-content: flex-start; }
}

@media (max-width: 620px) {
  .menu__contact { font-size: var(--text-xs); }
}

/* Staggered entry for the rail. Cheap, and only when motion is welcome. */
@media (prefers-reduced-motion: no-preference) {
  .menu.is-open .menu__row {
    animation: ss-row-in var(--dur) var(--ease-out) both;
    animation-delay: calc(var(--row-index, 0) * 45ms + 120ms);
  }
}

@keyframes ss-row-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: none; }
}