.nn-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--nn-cream);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s var(--nn-ease), box-shadow 0.4s var(--nn-ease), background 0.4s var(--nn-ease);
}
.nn-header.is-stuck {
  border-bottom-color: var(--nn-line-soft);
  background: rgba(251, 247, 240, 0.86);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  box-shadow: 0 12px 30px -26px rgba(18, 49, 58, 0.6);
}

.nn-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 68px;
  padding-top: 14px;
  padding-bottom: 14px;
}
@media (min-width: 990px) { .nn-header__inner { min-height: 82px; } }

/* logo */
.nn-header__logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--nn-ink);
  white-space: nowrap;
}
.nn-header__logo img { width: auto; }
.nn-header__mark {
  display: inline-grid;
  place-items: center;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--nn-ink);
  color: var(--nn-cream);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0;
  flex: none;
  transition: background 0.4s var(--nn-ease), transform 0.4s var(--nn-ease);
}
.nn-header__logo:hover .nn-header__mark { background: var(--nn-terra); transform: rotate(-8deg); }

/* nav */
.nn-header__nav { display: none; }
@media (min-width: 990px) {
  .nn-header__nav {
    display: flex;
    align-items: center;
    gap: 34px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }
  .nn-header__inner { position: relative; }
}
.nn-header__nav a {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--nn-ink);
  position: relative;
  padding: 4px 0;
}
.nn-header__nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--nn-ink);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.45s var(--nn-ease);
}
.nn-header__nav a:hover::after { transform: scaleX(1); transform-origin: left; }

/* actions */
.nn-header__actions { display: flex; align-items: center; gap: 8px; }
.nn-header__action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border-radius: 100px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--nn-ink);
  transition: background 0.35s var(--nn-ease), color 0.35s var(--nn-ease);
}
.nn-header__action:hover { background: rgba(18, 49, 58, 0.06); }
.nn-header__action--account span { display: none; }
@media (min-width: 750px) { .nn-header__action--account span { display: inline; } }

.nn-header__cart { position: relative; }
.nn-header__count {
  position: absolute;
  top: 2px; right: 2px;
  min-width: 16px; height: 16px;
  padding: 0 4px;
  border-radius: 100px;
  background: var(--nn-terra-text);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  line-height: 16px;
  text-align: center;
}
/* `.nn .nn-btn` sets display:inline-flex at specificity 0,2,0 — these rules
   must match it or the header button will not hide on small screens. */
.nn .nn-header__cta { display: none; }
@media (min-width: 1100px) {
  .nn .nn-header__cta { display: inline-flex; padding: 12px 20px; font-size: 11.5px; margin-left: 6px; }
}

/* burger */
.nn-header__burger {
  position: relative;
  display: inline-block;
  width: 40px; height: 40px;
  border-radius: 50%;
  transition: background 0.3s var(--nn-ease);
}
.nn-header__burger:hover { background: rgba(18, 49, 58, 0.06); }
@media (min-width: 990px) { .nn-header__burger { display: none; } }
/* bars are absolutely positioned so the X transform never reflows layout */
.nn-header__burger span {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 18px; height: 1.5px;
  margin-left: -9px;
  background: var(--nn-ink);
  border-radius: 2px;
  transition: transform 0.4s var(--nn-ease), opacity 0.25s var(--nn-ease);
}
.nn-header__burger span:nth-child(1) { transform: translateY(-6.5px); }
.nn-header__burger span:nth-child(2) { transform: translateY(0); }
.nn-header__burger span:nth-child(3) { transform: translateY(6.5px); }
.nn-menu-open .nn-header__burger span:nth-child(1) { transform: translateY(0) rotate(45deg); }
.nn-menu-open .nn-header__burger span:nth-child(2) { opacity: 0; transform: scaleX(0.4); }
.nn-menu-open .nn-header__burger span:nth-child(3) { transform: translateY(0) rotate(-45deg); }

/* mobile drawer */
.nn-header__drawer {
  position: fixed;
  inset: 0;
  top: var(--nn-header-offset, 108px);
  background: var(--nn-cream);
  padding: 32px var(--nn-gutter) 48px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.4s var(--nn-ease), transform 0.4s var(--nn-ease), visibility 0.4s;
  z-index: 45;
}
.nn-menu-open .nn-header__drawer { opacity: 1; visibility: visible; transform: none; }
@media (min-width: 990px) { .nn-header__drawer { display: none; } }
.nn-header__drawer a.nn-drawer-link {
  font-family: var(--nn-serif);
  font-size: 30px;
  letter-spacing: -0.02em;
  padding: 12px 0;
  border-bottom: 1px solid var(--nn-line-soft);
}
.nn-header__drawer .nn-btn { margin-top: 26px; }
.nn-header__drawer-note { margin-top: 18px; }