/* Khung chung toàn site (thiết kế mới): biến màu · nút · thanh trên · header · menu di động · footer · nút nổi.
   Nạp ở MỌI trang. Phần nội dung từng trang nằm ở design.css (trang chủ, giới thiệu) hoặc main.css (trang còn lại). */
:root{
  --ink:#0c1638;
  --navy:#1c2a63;
  --royal:#29387d;
  --gold:#c9a15b;
  --gold-d:#a47f3c;
  --gold-l:#ecd9ae;
  --ivory:#faf7f2;
  --stone:#f1ebe0;
  --line:#e7dfd0;
  --text:#2a3150;
  --muted:#6b7391;
  --white:#fff;
  --serif:"Playfair Display",Georgia,serif;
  --sans:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",sans-serif;
  --r:22px;
  --shadow:0 30px 60px -30px rgba(12,22,56,.35);
  --ease:cubic-bezier(.2,.7,.2,1);
}
html{scroll-behavior:smooth}
.topbar,header.nav,.drawer,footer.site-footer,.float{font-family:var(--sans);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
.topbar *,header.nav *,.drawer *,footer.site-footer *,.float *,.btn{box-sizing:border-box}
header.nav img,footer.site-footer img{max-width:100%;display:block}
header.nav a,.topbar a,.drawer a,footer.site-footer a,.float a,.btn{text-decoration:none}
header.nav li,.drawer li{margin:0;list-style:none}
footer.site-footer a,.drawer a{color:inherit}
footer.site-footer p{margin-top:0}
header.nav button,.drawer button{font:inherit;cursor:pointer}
.wrap{width:min(1240px,100% - 48px);margin-inline:auto}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.7rem;height:54px;padding:0 1.9rem;border-radius:99px;border:1px solid transparent;font-weight:600;font-size:.95rem;letter-spacing:.01em;transition:.35s var(--ease);white-space:nowrap}
.btn svg{width:18px;height:18px;transition:.35s var(--ease)}
.btn-gold{background:linear-gradient(135deg,#d9b574,#b78d45);color:#1a1405;box-shadow:0 14px 30px -14px rgba(167,126,52,.8)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 20px 36px -14px rgba(167,126,52,.9)}
.btn-gold:hover svg{transform:translateX(4px)}
.btn-ghost{border-color:rgba(12,22,56,.22);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-light{border-color:rgba(255,255,255,.35);color:#fff}
.btn-light:hover{background:#fff;color:var(--ink)}

.btn-gold,.btn-gold:hover{color:#1a1405}
/* topbar + header */
.topbar{background:var(--ink);color:#c9d0ee;font-size:.78rem}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:1rem;min-height:40px;padding-block:6px}
.topbar b{color:var(--gold-l);font-weight:600}
.topbar a{display:inline-flex;align-items:center;gap:.5rem;color:#fff}
.topbar .sep{opacity:.35;margin:0 .8rem}
header.nav{position:sticky;top:0;z-index:50;background:rgba(250,247,242,.86);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid transparent;transition:.3s}
header.nav.stuck{border-color:var(--line);box-shadow:0 10px 30px -24px rgba(12,22,56,.5)}
header.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:84px;gap:2rem}
.logo{display:flex;align-items:center;gap:.8rem}
.logo img{width:92px;height:92px;margin:-10px 0;object-fit:contain;mix-blend-mode:multiply}
.menu{display:flex;gap:2.2rem;list-style:none;margin:0;padding:0}
.menu a{font-size:.9rem;font-weight:500;color:var(--ink);position:relative;padding:.4rem 0}
.menu a::after{content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--gold-d);transition:.35s var(--ease)}
.menu a:hover::after,.menu a.on::after{width:100%}
.nav-cta{display:flex;align-items:center;gap:1.4rem}
.nav-phone{display:flex;align-items:center;gap:.7rem;font-weight:600;color:var(--ink);font-size:.95rem}
.nav-phone i{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:var(--ink);color:var(--gold-l);font-style:normal}
.nav-phone svg{width:18px;height:18px}
.nav-cta .btn{height:46px;padding:0 1.4rem;font-size:.88rem}
.burger{display:none;width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center}
.burger span{display:block;width:18px;height:1.5px;background:var(--ink);position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--ink);transition:.3s}
.burger span::before{top:-6px}.burger span::after{top:6px}

/* footer */
footer.site-footer{background:var(--ink);color:#aab3da;padding:clamp(60px,7vw,96px) 0 0}
.f-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr 1.2fr;gap:clamp(28px,4vw,64px)}
.f-grid h5{font-family:var(--sans);font-size:.78rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold-l);margin:0 0 1.2rem;font-weight:600}
.f-grid a{display:block;padding:.35rem 0;font-size:.92rem;transition:.25s}
.f-grid a:hover{color:#fff;padding-left:5px}
.f-grid p{font-size:.92rem;margin-bottom:.8rem}
.f-brand{display:grid;gap:1.2rem;max-width:34ch}
.f-brand .logo img{filter:none;mix-blend-mode:normal;background:#fff;border-radius:50%;padding:4px;width:78px;height:78px}
footer.site-footer .credit a{color:var(--gold-l);font-weight:600;transition:.25s}
footer.site-footer .credit a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.copy{margin-top:clamp(40px,5vw,72px);border-top:1px solid rgba(255,255,255,.1);padding:22px 0;font-size:.82rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}

/* floating */
.float{position:fixed;right:22px;bottom:22px;z-index:60;display:grid;gap:12px}
.float a{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;color:#fff;box-shadow:0 18px 30px -12px rgba(12,22,56,.6);transition:.3s}
.float a:hover{transform:scale(1.08)}
.float .zl{background:#0068ff;font-weight:700;font-size:.85rem;letter-spacing:.02em}
.float .ph{background:linear-gradient(135deg,#d9b574,#b78d45);color:#1a1405;position:relative}
.float .ph::after{content:"";position:absolute;inset:-6px;border-radius:50%;border:2px solid rgba(201,161,91,.6);animation:ping 2.2s infinite}
.float svg{width:24px;height:24px}
@keyframes ping{0%{transform:scale(.9);opacity:.9}100%{transform:scale(1.35);opacity:0}}

/* mobile menu */
.drawer{position:fixed;inset:0;z-index:80;background:var(--ink);color:#fff;padding:96px 28px 40px;display:none;flex-direction:column;gap:1.2rem}
.drawer.open{display:flex}
.drawer a{font-family:var(--serif);font-size:1.9rem;padding:.4rem 0;border-bottom:1px solid rgba(255,255,255,.1)}
.drawer .btn{margin-top:1rem;font-family:var(--sans);font-size:1rem;border:0;color:#1a1405}
.drawer .x{position:absolute;right:24px;top:24px;width:46px;height:46px;border-radius:50%;border:1px solid rgba(255,255,255,.3);background:transparent;color:#fff;font-size:1.4rem}

@media (max-width:1080px){
  .menu,.nav-phone{display:none}
  .burger{display:flex}
  .f-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .wrap{width:min(1240px,100% - 36px)}
  .topbar .hide-s{display:none}
  .topbar .wrap{justify-content:center}
  header.nav .wrap{height:72px}
  .logo img{width:78px;height:78px;margin:-8px 0}
  .nav-cta .btn{display:none}
  .btn{height:52px;padding:0 1.5rem}
  .f-grid{grid-template-columns:1fr}
  .float{right:14px;bottom:14px}.float a{width:52px;height:52px}
}
body.admin-bar header.nav{top:32px}
@media (max-width:782px){body.admin-bar header.nav{top:46px}}

/* Menu từ WordPress (Giao diện → Menu): mục đang mở + menu con dạng thẻ */
.menu>li{position:relative}
.menu>li.current-menu-item>a::after,.menu>li.current-menu-ancestor>a::after,.menu>li.current_page_parent>a::after{width:100%}
.menu>li>a{display:block;line-height:1.5}
.menu>li.menu-item-has-children>a{padding-right:20px}
.menu>li>a .drk-icon{position:absolute;right:0;top:50%;width:14px;height:14px;margin-top:-7px;opacity:.6;transition:transform .3s var(--ease)}
.menu>li:hover>a .drk-icon{transform:rotate(180deg)}
.menu .sub-menu{position:absolute;left:-22px;top:100%;min-width:250px;margin:0;padding:12px;list-style:none;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 30px 60px -28px rgba(12,22,56,.45);opacity:0;visibility:hidden;transform:translateY(8px);transition:.3s var(--ease);z-index:20}
.menu li:hover>.sub-menu,.menu li:focus-within>.sub-menu{opacity:1;visibility:visible;transform:none}
.menu .sub-menu::before{content:"";position:absolute;left:0;right:0;top:-14px;height:14px}
.menu .sub-menu a{display:block;padding:.65rem .9rem;border-radius:12px;font-size:.9rem;color:var(--text)}
.menu .sub-menu a::after{display:none}
.menu .sub-menu a:hover{background:var(--ivory);color:var(--ink)}
.drawer ul{list-style:none;margin:0;padding:0}
.drawer .sub-menu a{font-family:var(--sans);font-size:1.05rem;padding:.55rem 0 .55rem 1.2rem;color:#c9d0ee;border-bottom:0}
.drawer>ul>li>a{display:block}
body.admin-bar .drawer .x{top:64px}