/* ─── HEADER ─────────────────────────────────────────────────────── */
#header {
  position: static;
  left: 0; right: 0;
  z-index: 100;
  padding: var(--pad-y) var(--pad-x);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  background: var(--cream);
}
 
#header.is-fixed {
  position: fixed;
  top: 0;
  left: 50%;
  right: auto;
  width: 100%;
  max-width: 2560px;
  transform: translate(-50%, -100%);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: transform var(--duration-normal) var(--ease-out-expo), opacity var(--duration-normal) ease, visibility 0s var(--duration-normal);
}

#header.is-fixed.visible {
  transform: translate(-50%, 0);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: transform var(--duration-normal) var(--ease-out-expo), opacity var(--duration-normal) ease, visibility 0s 0s;
}
 
#header-placeholder { display: none; width: 100%; }
 
.header-logo {
  position: relative;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  text-align: left;
  min-height: 2.25rem;
}
 
.header-logo span {
  display: block;
  font-family: 'Mackay', serif;
  font-size: var(--text-display);
  line-height: var(--lh-display);
  color: var(--ink);
  max-width: 58vw;
  transition: opacity var(--duration-normal) ease, transform var(--duration-normal) var(--ease-out-expo);
}

.header-logo span strong { font-weight: 600; }

.header-logo::after {
  content: 'SN';
  position: absolute;
  top: 0; left: 0;
  font-family: 'Mackay', serif;
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--ink);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity var(--duration-normal) ease, transform var(--duration-normal) var(--ease-out-expo);
  pointer-events: none;
  white-space: nowrap;
}
 
.header-logo.scrolled span {
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  height: 0;
  overflow: hidden;
}
 
.header-logo.scrolled::after {
  opacity: 1;
  transform: translateY(0);
}
 
nav { display: flex; gap: 40px; align-items: flex-start; }
 
nav a {
  font-family: 'SuisseIntl', sans-serif;
  font-size: var(--text-sm);
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  line-height: var(--lh-ui);
  text-align: left;
  transition: opacity var(--duration-fast) ease;
}
 
nav a:hover { opacity: 0.5; }

nav .pending {
  font-family: 'SuisseIntl', sans-serif;
  font-size: var(--text-sm);
  text-transform: uppercase;
  color: var(--ink);
  line-height: var(--lh-ui);
  text-align: right;
  opacity: 0.35;
  cursor: default;
}

@media (max-width: 860px) {
  #header { flex-wrap: wrap; }
  nav { gap: 24px; order: -1; width: 100%; justify-content: flex-end; }
  .header-logo { width: 100%; max-width: 100%; margin-top: 24px; }
  .header-logo span { max-width: 100%; }

  /* Scrolled state: SN + nav back to single row */
  #header:has(.header-logo.scrolled) { flex-wrap: nowrap; }
  #header:has(.header-logo.scrolled) nav { width: auto; order: 0; justify-content: flex-end; }
  .header-logo.scrolled { width: auto; margin-top: 0; }
}