/* nav.css — White Sand Salon responsive header.
 *
 * Desktop (>=1024px): one elegant row — script logo left; right-aligned a
 * "Services" hover/focus dropdown + top-level links + the gold BOOK NOW button.
 * Mobile (<1024px): logo + BOOK NOW + hamburger; the hamburger opens a
 * full-screen black drawer listing every destination, grouped.
 *
 * Everything is scoped under .site-header / .nav-* so this file is inert on any
 * markup without the header. Consumes tokens.css (--gold, --ink, --serif …).
 * Behaviour (open/close, focus trap, scroll lock) lives in src/js/nav.js; the
 * dropdown also opens on pure CSS :hover/:focus-within so it works without JS.
 */

/* ─────────────────────────────────────────────────────────────────────────────
   Shell
   ───────────────────────────────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.brand {
  /* The wordmark is her real logo artwork (true Benedict script) rather than
     type — see WORDMARK_IMG in templates/base.js. Sized so it, BOOK NOW and the
     hamburger all fit one row on a 360px phone; taller at desktop below. */
  display: block;
  line-height: 0;
  color: var(--ink);
  flex-shrink: 0;
}

.brand__mark {
  width: auto;
  height: clamp(30px, 8.5vw, 38px);
}

.site-header__actions {
  margin-left: auto; /* pushes BOOK NOW + hamburger to the far right on mobile */
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Compact BOOK NOW on small screens so the row never crowds. */
.site-header__book {
  padding: var(--space-2) var(--space-4);
  font-size: var(--fs-100);
  letter-spacing: 0.1em;
  white-space: nowrap;
}

/* ─────────────────────────────────────────────────────────────────────────────
   Desktop nav (hidden < 1024px)
   ───────────────────────────────────────────────────────────────────────────── */
.site-nav {
  display: none;
}

.site-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.2vw, 2rem);
}

.site-nav__item {
  position: relative;
}

.site-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-family: var(--sans);
  font-size: var(--fs-200);
  font-weight: var(--fw-medium);
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease);
}
.site-nav__link:hover,
.site-nav__link:focus-visible {
  color: var(--gold-deep);
}
.site-nav__trigger {
  font: inherit;
  /* `font: inherit` resets weight to the body's Light 300, which would leave
     "Services" a step lighter than its sibling links — restate the nav weight. */
  font-weight: var(--fw-medium);
  letter-spacing: 0.06em;
}
.site-nav__link:focus-visible {
  outline: 2px solid var(--gold-deep);
  outline-offset: 4px;
  border-radius: 2px;
}

/* Caret on the Services trigger. */
.site-nav__caret {
  width: 0.42em;
  height: 0.42em;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform var(--dur-fast) var(--ease);
}
.has-dropdown:hover .site-nav__caret,
.has-dropdown:focus-within .site-nav__caret,
.has-dropdown.is-open .site-nav__caret {
  transform: translateY(0) rotate(225deg);
}

/* ── Services dropdown ── */
.site-nav__dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin: 0;
  padding: var(--space-3);
  min-width: 250px;
  list-style: none;
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 2px solid var(--gold);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  display: grid;
  gap: 2px;
  /* Closed state. Opens on hover / focus-within / .is-open (JS mirrors aria). */
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  /* visibility flips instantly (not transitioned) so it's a reliable open/closed
     signal; only opacity/transform animate. */
  transition: opacity var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
  z-index: 20;
}
/* A hover bridge so the pointer can travel from trigger to menu without a gap. */
.site-nav__dropdown::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -10px;
  height: 10px;
}
.has-dropdown:hover .site-nav__dropdown,
.has-dropdown:focus-within .site-nav__dropdown,
.has-dropdown.is-open .site-nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.site-nav__droplink {
  display: block;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius);
  font-family: var(--serif);
  font-size: var(--fs-400);
  line-height: 1.2;
  color: var(--ink);
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.site-nav__droplink:hover,
.site-nav__droplink:focus-visible {
  background: var(--sand);
  color: var(--gold-deep);
  outline: none;
}

/* ─────────────────────────────────────────────────────────────────────────────
   Hamburger toggle (hidden >= 1024px)
   ───────────────────────────────────────────────────────────────────────────── */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease);
}
.nav-toggle:hover {
  border-color: var(--gold);
}
.nav-toggle:focus-visible {
  outline: 2px solid var(--gold-deep);
  outline-offset: 2px;
}
.nav-toggle__box {
  position: relative;
  width: 20px;
  height: 12px;
}
.nav-toggle__bar,
.nav-toggle__bar::before,
.nav-toggle__bar::after {
  position: absolute;
  left: 0;
  width: 20px;
  height: 1.5px;
  background: currentColor;
  transition: transform var(--dur) var(--ease), opacity var(--dur-fast) var(--ease);
}
.nav-toggle__bar {
  top: 50%;
  transform: translateY(-50%);
}
.nav-toggle__bar::before {
  content: "";
  top: -6px;
}
.nav-toggle__bar::after {
  content: "";
  top: 6px;
}
/* Morph into an X while the drawer is open. */
.nav-toggle[aria-expanded="true"] .nav-toggle__bar {
  background: transparent;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::before {
  transform: translateY(6px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::after {
  transform: translateY(-6px) rotate(-45deg);
}

/* ─────────────────────────────────────────────────────────────────────────────
   Mobile full-screen drawer
   ───────────────────────────────────────────────────────────────────────────── */
.nav-drawer {
  position: fixed;
  inset: 0;
  z-index: 200;
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}
.nav-drawer[hidden] {
  display: none;
}
.nav-drawer.is-open {
  opacity: 1;
}

.nav-drawer__backdrop {
  position: absolute;
  inset: 0;
  background: var(--ink);
}

/* Panel spans the screen but is click-transparent on its empty areas, so tapping
   the black "backdrop" between items closes the drawer (nav.js handles it). */
.nav-drawer__panel {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  padding: var(--space-5) clamp(1.5rem, 7vw, 3rem) var(--space-7);
  pointer-events: none;
}
.nav-drawer__panel a,
.nav-drawer__panel button {
  pointer-events: auto;
}

.nav-drawer__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--space-5);
  border-bottom: 1px solid rgba(220, 195, 137, 0.22);
}
.nav-drawer__brand {
  display: block;
  line-height: 0;
  color: var(--paper);
}
/* The logo artwork is black-on-transparent; the drawer is dark, so invert it to
   the paper-white version rather than shipping a second file. */
.nav-drawer__brand .brand__mark {
  height: 38px;
  filter: invert(1);
}

/* Accessible-name-only text (the wordmark image carries an empty alt). */
.u-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.nav-drawer__close {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  line-height: 1;
  color: var(--gold-light);
  background: none;
  border: 1px solid rgba(220, 195, 137, 0.3);
  border-radius: var(--radius);
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.nav-drawer__close:hover {
  color: var(--paper);
  border-color: var(--gold-light);
}
.nav-drawer__close:focus-visible {
  outline: 2px solid var(--gold-light);
  outline-offset: 2px;
}

.nav-drawer__scroll {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-6) 0 var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.nav-drawer__label {
  margin: 0 0 var(--space-3);
  font-family: var(--sans);
  font-size: var(--fs-100);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
}

.nav-drawer__list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-drawer__item {
  /* Staggered fade-in (--i set inline). Only animates while the drawer is open. */
  opacity: 0;
  transform: translateX(-14px);
}
.nav-drawer.is-open .nav-drawer__item {
  animation: nav-drawer-in var(--dur-slow) var(--ease) forwards;
  animation-delay: calc(60ms + var(--i) * 45ms);
}
@keyframes nav-drawer-in {
  to {
    opacity: 1;
    transform: none;
  }
}

.nav-drawer__link {
  display: block;
  padding: var(--space-3) 0;
  font-family: var(--serif);
  font-size: clamp(1.28rem, 4.56vw, 1.55rem);
  font-weight: var(--fw-medium);
  line-height: 1.15;
  color: var(--sand);
  transition: color var(--dur-fast) var(--ease), padding-left var(--dur-fast) var(--ease);
}
.nav-drawer__link:hover,
.nav-drawer__link:focus-visible {
  color: var(--gold-light);
  padding-left: var(--space-3);
  outline: none;
}

.nav-drawer__cta {
  padding-top: var(--space-5);
  border-top: 1px solid rgba(220, 195, 137, 0.22);
}
.nav-drawer__book {
  display: block;
  text-align: center;
  padding: var(--space-4);
  font-size: var(--fs-200);
}

/* ─────────────────────────────────────────────────────────────────────────────
   Breakpoint: swap to the single-row desktop header
   ───────────────────────────────────────────────────────────────────────────── */
@media (min-width: 1024px) {
  .site-header__inner {
    padding: var(--space-4) var(--space-5);
    gap: var(--space-4);
  }
  .brand__mark {
    height: 46px;
  }
  .site-nav {
    display: block;
    margin-left: auto;
  }
  .site-header__actions {
    margin-left: var(--space-5);
  }
  .site-header__book {
    padding: var(--space-3) var(--space-6);
    font-size: var(--fs-200);
    letter-spacing: 0.08em;
  }
  .nav-toggle {
    display: none;
  }
  .nav-drawer {
    display: none !important; /* desktop never shows the drawer */
  }

  /* When the concierge sidebar is docked open, body gets padding-right:
     var(--wss-chat-w) (~384px), so the header's usable width drops enough that the
     inline links wrap to two lines. Collapse to the drawer button instead — the
     header stays one clean line (brand · Book Now · menu) at every desktop width,
     and the drawer opens as the same full overlay used on mobile. */
  body.wss-chat-open .site-nav {
    display: none;
  }
  body.wss-chat-open .nav-toggle {
    display: inline-flex;
  }
  body.wss-chat-open .nav-drawer:not([hidden]) {
    display: block !important;
  }
}

/* ─────────────────────────────────────────────────────────────────────────────
   Reduced motion — no drawer stagger / caret spin transitions
   ───────────────────────────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .nav-drawer,
  .nav-drawer__item,
  .site-nav__dropdown {
    transition: none;
  }
  .nav-drawer.is-open .nav-drawer__item {
    animation: none;
    opacity: 1;
    transform: none;
  }
  .nav-drawer__item {
    opacity: 1;
    transform: none;
  }
}