/* Wedding Dance Lessons UK — nav.css
   Sticky header: brand, centred pill navigation (with Locations dropdown), phone, accent CTA, mobile toggle. */

.btn-accent { display: inline-flex; align-items: center; gap: 0.55rem; background: var(--accent); color: #fff; text-decoration: none; font-size: 0.72rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; padding: 0.62rem 0.95rem; border-radius: 8px; white-space: nowrap; }
.btn-accent::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: #fff; }
.btn-accent:hover { background: var(--ink); }

.site-head { position: sticky; top: 0; z-index: 40; }
.site-head::before { content: ''; position: absolute; inset: 0; z-index: -1; background: rgba(232, 229, 223, 0.88); backdrop-filter: blur(10px); }
.site-head .wrap { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 1rem; padding: 0.8rem calc(var(--pad) + var(--gutter)); }
.brand { text-decoration: none; line-height: 1; display: inline-flex; align-items: baseline; gap: 0.5rem; }
.brand .brand-serif { font-family: var(--serif); font-size: 1.3rem; }
.brand .brand-mono { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.28em; text-transform: uppercase; color: var(--accent); }

.pill-nav { display: flex; background: #1b1a18; border-radius: 11px; padding: 3px; position: relative; }
.pill-nav > a, .nav-drop > a { color: #d6d1c9; font-size: 0.86rem; font-weight: 500; text-decoration: none; padding: 0.5rem 1.05rem; border-radius: 8px; white-space: nowrap; }
.pill-nav > a, .nav-drop { border-left: 1px solid rgba(255, 255, 255, 0.08); }
.pill-nav > a:first-child { border-left: 0; }
.pill-nav > a.current { background: #fff; color: var(--ink); border-left-color: transparent; }
.pill-nav > a.current + a, .pill-nav > a.current + .nav-drop { border-left-color: transparent; }
.pill-nav > a:hover, .nav-drop > a:hover { color: #fff; }
.pill-nav > a.current:hover { color: var(--ink); }
.pill-nav .nav-cta { display: none; }

/* Locations dropdown */
.nav-drop { display: flex; align-items: center; }
.nav-drop > a { padding-right: 0.3rem; }
.drop-toggle { background: transparent; border: 0; color: #d6d1c9; padding: 0.5rem 0.8rem 0.5rem 0.1rem; cursor: pointer; display: inline-flex; align-items: center; }
.drop-toggle:hover { color: #fff; }
.drop-toggle svg { width: 10px; height: 10px; transition: transform 0.25s ease; }
.nav-drop.open .drop-toggle svg { transform: rotate(180deg); }
.nav-drop { position: relative; }
.nav-panel { display: none; position: absolute; top: calc(100% + 11px); left: 50%; transform: translateX(-50%); width: 12.5rem; max-height: min(28rem, calc(100vh - 7rem)); overflow-y: auto; background: #1b1a18; border-radius: 12px; padding: 0.7rem 1.1rem; box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35); }
.nav-drop.open .nav-panel { display: block; }
.nav-panel ul { list-style: none; margin: 0; padding: 0; }
.nav-panel li + li { border-top: 1px solid rgba(255, 255, 255, 0.07); }
.nav-panel li a { color: #d6d1c9; font-size: 0.82rem; text-decoration: none; display: block; padding: 0.42rem 0.1rem; border-radius: 0; }
.nav-panel li a:hover { color: #fff; }
@media (hover: hover) and (min-width: 901px) {
  .nav-drop:hover .nav-panel, .nav-drop:focus-within .nav-panel { display: block; }
  .nav-drop:hover .drop-toggle svg, .nav-drop:focus-within .drop-toggle svg { transform: rotate(180deg); }
  .nav-drop:hover::after, .nav-drop:focus-within::after { content: ''; position: absolute; top: 100%; left: 0; right: 0; height: 12px; }
}

.head-right { display: flex; justify-content: flex-end; align-items: center; gap: 1.1rem; }
.head-phone { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.04em; text-decoration: none; color: var(--ink-2); }
.nav-toggle { display: none; background: #1b1a18; color: #fff; border: 0; border-radius: 8px; font-family: var(--sans); font-size: 0.8rem; font-weight: 500; padding: 0.55rem 0.9rem; cursor: pointer; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .site-head .wrap { grid-template-columns: 1fr auto; }
  .pill-nav { position: fixed; top: 0; right: 0; height: 100vh; height: 100dvh; width: 80%; overflow-y: auto; flex-direction: column; justify-content: flex-start; border-radius: 0; padding: 5.5rem 1.2rem 1.5rem; box-shadow: -18px 0 40px rgba(0, 0, 0, 0.25); background: rgba(21, 20, 18, 0.82); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); transform: translateX(110%); visibility: hidden; transition: transform 0.42s cubic-bezier(0.32, 0.72, 0.22, 1), visibility 0.42s; }
  .pill-nav.open { transform: translateX(0); visibility: visible; }
  .pill-nav > a, .nav-drop > a { border-left: 0; font-size: 1.05rem; padding: 1rem 0.5rem; }
  .pill-nav > a { border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
  .pill-nav > a:last-of-type { border-bottom: 0; }
  .pill-nav .nav-cta { display: block; color: var(--accent); }
  .nav-drop { flex-wrap: wrap; border-left: 0; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
  .nav-drop > a { flex: 1; }
  .drop-toggle { padding: 1rem 0.6rem; }
  .drop-toggle svg { width: 13px; height: 13px; }
  .nav-panel { position: static; transform: none; width: 100%; max-height: 15.5rem; overflow-y: auto; box-shadow: none; background: rgba(255, 255, 255, 0.05); border-radius: 10px; padding: 0.2rem 0.9rem; margin: 0 0 0.9rem; }
  .nav-panel li a { font-size: 0.92rem; padding: 0.4rem 0; }
  .nav-toggle { display: inline-block; position: relative; z-index: 2; }
  .head-phone { display: none; }
}
@media (prefers-reduced-motion: reduce) { .pill-nav { transition: none; } }
@media (max-width: 640px) {
  .brand .brand-mono { display: none; }
  .head-right .btn-accent { display: none; }
}