/* ═══════════════════════════════════════════════════════════════════════════
   VINTOLOGY — EDITORIAL HEADER (slim, transparent, condenses on scroll)
   ═══════════════════════════════════════════════════════════════════════════ */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 2rem;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background .35s ease, padding .35s ease, border-color .35s ease;
}
.nav.is-scrolled {
  padding: .65rem 2rem;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.logo { display: inline-flex; align-items: center; line-height: 0; }
.logo-img { height: 26px; width: auto; display: block; transition: height .3s ease; }
.nav.is-scrolled .logo-img { height: 22px; }
.logo-img--light { display: none; }
[data-theme="light"] .logo-img--dark { display: none; }
[data-theme="light"] .logo-img--light { display: block; }

.nav-burger {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 36px;
  padding: 0 9px;
  background: none;
  border: 1px solid var(--line);
  border-radius: 2px;
  transition: border-color .2s ease;
}
.nav-burger span {
  display: block; height: 1.5px; width: 100%;
  background: var(--text);
  transition: transform .3s ease, opacity .3s ease;
}
.nav-burger:hover { border-color: var(--text); }
.nav-burger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-burger.is-open span:nth-child(2) { opacity: 0; }
.nav-burger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── drawer ── */
.nav-drawer-backdrop {
  position: fixed; inset: 0; z-index: 90;
  background: rgba(17, 17, 17, .4);
  opacity: 0; transition: opacity .3s ease;
}
.nav-drawer-backdrop.is-visible { opacity: 1; }

.nav-drawer {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 100;
  width: min(340px, 84vw);
  background: var(--bg);
  border-left: 1px solid var(--line);
  box-shadow: -24px 0 60px rgba(0, 0, 0, .18);
  display: flex; flex-direction: column; gap: .2rem;
  padding: 4.5rem 1.6rem 2rem;
  transform: translateX(100%);
  transition: transform .35s cubic-bezier(.2, .8, .2, 1);
}
.nav-drawer.is-open { transform: translateX(0); }
.nav-drawer a {
  padding: .95rem .4rem;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  transition: color .2s ease, padding-left .2s ease;
}
.nav-drawer a:hover, .nav-drawer a.is-active { color: var(--text-3); padding-left: .8rem; }
.nav-drawer__close {
  position: absolute; top: 1rem; right: 1.1rem;
  width: 38px; height: 38px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: none; color: var(--text);
  font-size: 1.4rem; line-height: 1;
  transition: border-color .2s ease, color .2s ease;
}
.nav-drawer__close:hover { border-color: var(--text); }

.nav-drawer__prefs {
  margin-top: auto;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
  display: flex; flex-direction: column; gap: .35rem;
}
.nav-drawer__row {
  display: flex; align-items: center; gap: .6rem;
  padding: .75rem .4rem;
  border: none; border-bottom: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: .92rem; font-weight: 600;
  color: var(--text); background: none;
  text-align: left;
  transition: color .2s ease, padding-left .2s ease;
}
.nav-drawer__row:hover { color: var(--text-3); padding-left: .8rem; }
.nav-drawer__btn { cursor: pointer; }
.nav-drawer__label {
  font-size: .72rem; font-weight: 700;
  letter-spacing: var(--tracking-wide); text-transform: uppercase;
  color: var(--text-3); min-width: 4.5rem;
}
.nav-drawer__select {
  flex: 1; font: inherit; font-size: .9rem; color: var(--text);
  background: var(--bg); border: 1px solid var(--line); border-radius: 2px;
  padding: .45rem .6rem;
}
.tt-icon { width: 1.15em; text-align: center; font-size: 1rem; }
.tt-icon[hidden] { display: none; }

@media (max-width: 700px) {
  .nav { padding: .9rem 1.1rem; }
  .nav.is-scrolled { padding: .55rem 1.1rem; }
}
@media (prefers-reduced-motion: reduce) {
  .nav, .nav-burger span, .nav-drawer, .nav-drawer-backdrop { transition: none !important; }
}