/* ==========================================================================
   Layout — header, menu mobile, footer, nút nổi
   ========================================================================== */

/* ---------- Header ---------- */
.bb-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 248, 239, .94);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.bb-header.is-stuck { border-color: var(--bb-line); box-shadow: 0 6px 24px rgba(90, 55, 25, .08); }
.bb-header__inner { display: flex; align-items: center; gap: 28px; height: var(--bb-header-h); }

.bb-logo { display: inline-flex; align-items: center; gap: 10px; flex: none; }
.bb-logo img { width: 48px; height: 48px; }
.bb-logo span { display: flex; flex-direction: column; line-height: 1; }
.bb-logo b { font-family: var(--bb-font-head); font-size: 26px; font-weight: 800; color: var(--bb-red); }
.bb-logo i { margin-top: -2px; font-family: var(--bb-font-hand); font-size: 21px; font-weight: 700; font-style: normal; color: var(--bb-purple); }

.bb-nav { margin-inline: auto; }
.bb-menu { display: flex; align-items: center; gap: 4px; }
.bb-menu > li { position: relative; }
.bb-menu > li > a {
  display: inline-flex; align-items: center; height: 42px; padding: 0 14px;
  border-radius: 999px; font-weight: 600; font-size: 15px; color: var(--bb-ink);
  transition: background-color .2s ease, color .2s ease;
}
.bb-menu > li > a:hover,
.bb-menu > li.current-menu-item > a,
.bb-menu > li.current-menu-ancestor > a,
.bb-menu > li.current_page_parent > a { background: var(--bb-dough); color: var(--bb-red); }

.bb-menu .sub-menu {
  position: absolute; top: 100%; left: 0; min-width: 230px; padding: 10px;
  background: #fff; border-radius: 16px; box-shadow: var(--bb-shadow-lg);
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: all .2s ease;
}
.bb-menu > li:hover > .sub-menu,
.bb-menu > li:focus-within > .sub-menu { opacity: 1; visibility: visible; transform: none; }
.bb-menu .sub-menu a { display: block; padding: 9px 14px; border-radius: 10px; font-size: 15px; }
.bb-menu .sub-menu a:hover { background: var(--bb-cream); color: var(--bb-red); }

.bb-header__actions { display: flex; align-items: center; gap: 16px; flex: none; }
.bb-header__phone { display: inline-flex; align-items: center; gap: 10px; }
.bb-header__phone svg {
  width: 40px; height: 40px; padding: 10px; border-radius: 50%;
  background: var(--bb-dough); color: var(--bb-red);
}
.bb-header__phone span { display: flex; flex-direction: column; line-height: 1.2; }
.bb-header__phone small { font-size: 12px; color: var(--bb-muted); }
.bb-header__phone b { font-size: 16px; color: var(--bb-ink); }

.bb-burger {
  display: none; position: relative; width: 44px; height: 44px; padding: 0;
  border: 0; border-radius: 12px; background: var(--bb-dough); cursor: pointer;
}
.bb-burger span,
.bb-burger span::before,
.bb-burger span::after {
  position: absolute; left: 12px; width: 20px; height: 2px; border-radius: 2px;
  background: var(--bb-ink); content: "";
}
.bb-burger span { top: 21px; }
.bb-burger span::before { left: 0; top: -6px; }
.bb-burger span::after { left: 0; top: 6px; }

/* ---------- Menu mobile (ngăn kéo) ---------- */
.bb-drawer {
  position: fixed; inset: 0; z-index: 100;
  visibility: hidden; pointer-events: none;
}
.bb-drawer__overlay {
  position: absolute; inset: 0; background: rgba(40, 25, 15, .45);
  opacity: 0; transition: opacity .25s ease;
}
.bb-drawer__panel {
  position: absolute; top: 0; right: 0; bottom: 0; width: min(340px, 86vw);
  display: flex; flex-direction: column; gap: 24px; padding: 22px;
  background: var(--bb-cream); overflow-y: auto;
  transform: translateX(100%); transition: transform .3s ease;
}
.bb-drawer.is-open { visibility: visible; pointer-events: auto; }
.bb-drawer.is-open .bb-drawer__overlay { opacity: 1; }
.bb-drawer.is-open .bb-drawer__panel { transform: none; }
.bb-drawer__head { display: flex; align-items: center; justify-content: space-between; }
.bb-drawer__close {
  width: 44px; height: 44px; padding: 0; border: 0; border-radius: 12px;
  background: var(--bb-dough); font-size: 26px; line-height: 1; cursor: pointer;
}
.bb-drawer__menu a { display: block; padding: 12px 4px; border-bottom: 1px solid var(--bb-line); font-weight: 600; }
.bb-drawer__menu .sub-menu a { padding-left: 20px; font-weight: 500; color: var(--bb-muted); }
.bb-drawer__cta { display: grid; gap: 10px; margin-top: auto; }

/* ---------- Footer ---------- */
.bb-footer { background: #2c1f17; color: #e9dccb; }
.bb-footer__top { padding-block: 72px 48px; }
.bb-footer__grid {
  display: grid; gap: 40px;
  grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
}
.bb-footer .bb-logo b { color: #fff; }
.bb-footer .bb-logo i { color: #e7c3ff; }
.bb-footer__brand p { margin-top: 18px; font-size: 15px; color: #cdbba6; }
.bb-footer h3 {
  margin-bottom: 18px; font-size: 19px; color: #fff;
}
.bb-footer__links { display: grid; gap: 10px; font-size: 15px; }
.bb-footer__links a { color: #e9dccb; transition: color .2s ease; }
.bb-footer__links a:hover { color: var(--bb-gold); }
.bb-footer__contact { display: grid; gap: 14px; font-size: 15px; }
.bb-footer__contact li { display: flex; gap: 12px; align-items: flex-start; }
.bb-footer__contact svg { width: 20px; height: 20px; flex: none; margin-top: 3px; color: var(--bb-gold); }
.bb-footer__contact a { color: #e9dccb; }
.bb-footer__contact a:hover { color: var(--bb-gold); }
.bb-socials { display: flex; gap: 10px; margin-top: 22px; }
.bb-socials a {
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255, 255, 255, .08); color: #fff; transition: background-color .2s ease;
}
.bb-socials a:hover { background: var(--bb-red); color: #fff; }
.bb-socials svg { width: 18px; height: 18px; }
.bb-footer__bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding-block: 20px; font-size: 14px; color: #b8a690; }
.bb-footer__bottom .bb-container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; }
.bb-footer__bottom a { color: #b8a690; }
.bb-footer__bottom a:hover { color: var(--bb-gold); }

/* ---------- Nút nổi ---------- */
.bb-float { position: fixed; right: 18px; bottom: 18px; z-index: 40; display: grid; gap: 12px; }
.bb-float a {
  display: grid; place-items: center; width: 54px; height: 54px; border-radius: 50%;
  box-shadow: 0 10px 24px rgba(0, 0, 0, .2); color: #fff;
  transition: transform .2s ease;
}
.bb-float a:hover { transform: scale(1.08); color: #fff; }
.bb-float svg { width: 26px; height: 26px; }
.bb-float__zalo { background: #0068ff; }
.bb-float__phone { background: var(--bb-red); animation: bb-ring 2.4s ease-in-out infinite; }
@keyframes bb-ring {
  0%, 100% { box-shadow: 0 0 0 0 rgba(184, 55, 43, .45); }
  50% { box-shadow: 0 0 0 12px rgba(184, 55, 43, 0); }
}