:root{
  --bg:#ffffff; --ink:#16181d; --muted:#6b7280; --line:#eceef2;
  --brand:#0f6fff; --accent:#ff7a1a; --soft:#f5f7fb; --radius:14px;
  --maxw:1120px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;overflow-x:hidden}
body{font-family:system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.6;font-size:17px;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 18px}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--line)}
.hdr{display:flex;align-items:center;justify-content:space-between;min-height:62px;gap:14px}
.logo{font-weight:800;font-size:1.3rem;letter-spacing:-.5px;flex-shrink:0}
.logo span{color:var(--accent)}

.nav{display:flex;gap:4px;align-items:center}
.nav-item{position:relative}
.nav-link{display:inline-flex;align-items:center;gap:4px;color:#3a3f4a;font-weight:600;
  font-size:.97rem;padding:9px 12px;border-radius:9px;white-space:nowrap}
.nav-link:hover,.nav-link.active{color:var(--brand);background:var(--soft)}
.caret{font-size:.7rem;opacity:.7;transition:transform .15s}
.sub-toggle{display:none}

.submenu{position:absolute;top:calc(100% + 6px);left:0;min-width:208px;background:#fff;
  border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 34px rgba(15,30,60,.12);
  padding:8px;opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .14s ease,transform .14s ease,visibility .14s;z-index:120}
.submenu::before{content:"";position:absolute;top:-8px;left:0;right:0;height:8px}
.submenu a{display:block;padding:9px 12px;border-radius:8px;color:#3a3f4a;font-weight:500;font-size:.94rem}
.submenu a:hover,.submenu a.active{background:var(--soft);color:var(--brand)}
.has-sub:hover .submenu{opacity:1;visibility:visible;transform:translateY(0)}
.has-sub:hover .caret{transform:rotate(180deg)}

.burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;
  border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer}
.burger span{display:block;width:20px;height:2px;background:var(--ink);margin:0 auto;transition:.2s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.main{padding:26px 18px 60px;max-width:var(--maxw);margin:0 auto}

/* ---------- hero ---------- */
.hero{background:linear-gradient(135deg,#eaf2ff 0%,#fff4ec 100%);
  border:1px solid var(--line);border-radius:var(--radius);padding:46px 28px;margin-bottom:26px;text-align:center}
.hero h1{font-size:2.2rem;line-height:1.14;letter-spacing:-1px;margin-bottom:12px}
.hero-sub{color:#4b5260;font-size:1.1rem;max-width:640px;margin:0 auto}
.hero-cta{margin-top:22px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.home-intro{max-width:780px;margin:0 auto 8px;text-align:center;color:#4b5260}

.sec-title{font-size:1.45rem;margin:34px 0 4px;letter-spacing:-.4px}
.sec-sub{color:var(--muted);margin-bottom:16px;font-size:1rem}

/* ---------- cards ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}
.card:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(15,30,60,.08);border-color:#dfe5ee}
.card h3{font-size:1.12rem;margin:6px 0 6px}
.card p{color:var(--muted);font-size:.95rem}
.card-tag{display:inline-block;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;
  color:var(--brand);background:#eaf2ff;padding:3px 8px;border-radius:999px}
.card--accent .card-tag{color:var(--accent);background:#fff0e6}

/* destination cards with gradient header */
.cards--dest{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}
.card--dest{padding:0;overflow:hidden}
.card--dest .dest-emoji{font-size:2.6rem;padding:30px 18px 14px;text-align:center;
  background:linear-gradient(135deg,#eaf2ff,#f4f8ff)}
.card--dest h3{padding:0 18px;margin:14px 0 4px}
.card--dest p{padding:0 18px 18px;color:var(--muted);font-size:.92rem}
.dest-th .dest-emoji{background:linear-gradient(135deg,#eaf2ff,#fff4ec)}
.dest-vn .dest-emoji{background:linear-gradient(135deg,#fdeaea,#fff4ec)}
.dest-phuket .dest-emoji{background:linear-gradient(135deg,#e6f7f1,#eaf2ff)}
.dest-nhatrang .dest-emoji{background:linear-gradient(135deg,#fff4ec,#e6f7f1)}

/* ---------- service tiles ---------- */
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:14px}
.tile{display:flex;flex-direction:column;gap:6px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:20px 18px;transition:transform .15s,box-shadow .15s,border-color .15s}
.tile:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(15,30,60,.08);border-color:#dfe5ee}
.tile-ic{font-size:1.8rem}
.tile-name{font-weight:700;font-size:1.05rem}
.tile-desc{color:var(--muted);font-size:.9rem}
.tile--shop{background:linear-gradient(135deg,#fff7f0,#fff);border-color:#ffe2cc}

/* ---------- breadcrumbs ---------- */
.crumbs{font-size:.88rem;color:var(--muted);margin-bottom:14px}
.crumbs a{color:var(--brand)}
.crumbs span{color:var(--muted)}

/* ---------- prose ---------- */
.prose{font-size:1.06rem}
.prose h1{font-size:1.9rem;letter-spacing:-.6px;margin:6px 0 16px}
.prose h2{font-size:1.3rem;margin:28px 0 10px}
.prose h3{font-size:1.1rem;margin:20px 0 8px}
.prose p{margin:0 0 14px}
.prose ul{margin:0 0 14px 20px}
.prose li{margin:4px 0}
.article{max-width:760px}

/* widget placeholder */
.widget-ph{border:1.5px dashed #cfd6e2;border-radius:12px;background:var(--soft);
  padding:22px;text-align:center;margin:18px 0;color:#52596a}
.widget-ph strong{display:block;font-size:1.02rem;color:var(--ink);margin-bottom:4px}

/* info note */
.note{background:var(--soft);border-left:3px solid var(--brand);border-radius:8px;
  padding:12px 16px;margin:16px 0;font-size:.96rem;color:#3a3f4a}

/* ---------- buttons ---------- */
.btn{display:inline-block;background:var(--accent);color:#fff;font-weight:700;
  padding:13px 22px;border-radius:12px;margin:10px 0;font-size:1rem}
.btn:hover{filter:brightness(1.05)}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid #d9dfe9}
.btn-ghost:hover{filter:none;border-color:var(--brand);color:var(--brand)}
.btn-sm{display:inline-block;background:var(--brand);color:#fff;font-weight:600;
  padding:8px 12px;border-radius:9px;font-size:.85rem;margin-top:8px}
.muted{color:var(--muted);font-size:.85rem}

/* product grid */
.prod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px;margin:18px 0}
.prod{border:1px solid var(--line);border-radius:12px;padding:14px;text-align:center;background:#fff;display:flex;flex-direction:column}
.prod .btn-sm{margin-top:auto}
.prod-img{font-size:2.4rem;margin-bottom:8px}
.prod-name{font-size:.92rem;font-weight:600;min-height:2.6em;margin-bottom:6px}
.prod-price{font-size:.85rem;color:var(--accent);font-weight:700;margin-bottom:6px}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--soft);padding:40px 0 24px;margin-top:48px}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.footer-col h4{font-size:.95rem;margin-bottom:12px;color:var(--ink);letter-spacing:.01em}
.footer-col a{display:block;color:var(--muted);font-size:.9rem;padding:3px 0}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{border-top:1px solid var(--line);margin-top:28px;padding-top:18px}
.footer-bottom p{color:var(--muted);font-size:.83rem;line-height:1.5}

/* ---------- responsive ---------- */
@media (max-width:860px){
  .burger{display:flex}
  .nav{position:fixed;top:62px;left:0;right:0;bottom:0;height:calc(100dvh - 62px);z-index:60;flex-direction:column;align-items:stretch;
    gap:0;background:#fff;padding:10px 18px 30px;overflow-y:auto;transform:translateX(100%);
    transition:transform .22s ease,visibility .22s;border-top:1px solid var(--line);gap:2px;
    visibility:hidden}
  .nav.open{transform:translateX(0);visibility:visible}
  .nav-item{width:100%}
  .nav-link{padding:13px 8px;font-size:1.05rem;border-radius:8px;width:100%}
  .has-sub{display:flex;flex-wrap:wrap;align-items:center}
  .has-sub .nav-link{flex:1}
  .sub-toggle{display:block;width:44px;height:44px;border:none;background:none;font-size:1rem;
    color:var(--muted);cursor:pointer;transition:transform .2s}
  .nav-item.sub-open .sub-toggle{transform:rotate(180deg)}
  .submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;
    background:transparent;padding:0 0 6px 12px;display:none;width:100%}
  .nav-item.sub-open .submenu{display:block}
  .submenu a{padding:11px 10px;font-size:1rem}
  .caret{display:none}
}
@media (max-width:600px){
  body{font-size:16px}
  .hero{padding:32px 18px}
  .hero h1{font-size:1.65rem}
  .main{padding:18px 16px 48px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:22px}
  .sec-title{font-size:1.3rem}
}
@media (max-width:380px){
  .footer-grid{grid-template-columns:1fr}
}


/* --- Travelpayouts offer widgets --- */
.tp-widget{display:flex;align-items:center;gap:14px;background:#f6f9ff;border:1px solid #e1e8f5;border-radius:14px;padding:16px 18px;margin:22px 0}
.tp-widget__icon{font-size:1.8rem;line-height:1}
.tp-widget__body{flex:1;display:flex;flex-direction:column;gap:2px}
.tp-widget__body strong{font-size:1.02rem}
.tp-widget__body span{color:#5a6472;font-size:.9rem}
.tp-widget .btn{white-space:nowrap}
@media(max-width:560px){.tp-widget{flex-direction:column;align-items:flex-start}.tp-widget .btn{width:100%;text-align:center}}
.related{margin-top:40px;border-top:1px solid #e8e8e8;padding-top:20px}
.related h2{margin-bottom:14px}