/*
Theme Name: VietAdventure
Theme URI: https://vietadventure.com
Author: VietAdventure
Description: Lightweight SEO-first travel portal theme for VietAdventure.
Version: 0.2.0
Requires at least: 6.5
Requires PHP: 8.1
Text Domain: vietadventure
*/

:root{
  --va-bg:#ffffff;
  --va-surface:#f6f7f5;
  --va-surface-2:#eef2ef;
  --va-text:#17201d;
  --va-muted:#6b746f;
  --va-border:#e2e8e4;
  --va-primary:#0d5c46;
  --va-primary-2:#174f3f;
  --va-accent:#f4a261;
  --va-shadow:0 10px 30px rgba(21,32,28,.08);
  --va-radius:20px;
  --va-container:1440px;
}

[data-theme="dark"]{
  --va-bg:#0f1412;
  --va-surface:#161d1a;
  --va-surface-2:#1d2723;
  --va-text:#f1f5f3;
  --va-muted:#aab4af;
  --va-border:#2a3530;
  --va-primary:#5ed0aa;
  --va-primary-2:#45ba95;
  --va-accent:#f4b36f;
  --va-shadow:0 10px 30px rgba(0,0,0,.22);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:var(--va-bg);
  color:var(--va-text);
  line-height:1.6;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
.va-container{width:min(calc(100% - 32px),var(--va-container));margin-inline:auto}

.site-header{
  position:sticky;top:0;z-index:1000;
  backdrop-filter:saturate(180%) blur(14px);
  background:color-mix(in srgb,var(--va-bg) 90%,transparent);
  border-bottom:1px solid var(--va-border);
}
.va-header-inner{
  min-height:74px;display:flex;align-items:center;gap:24px;
}
.site-branding{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.02em}
.site-logo-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;background:var(--va-primary);color:white;
}
.site-branding small{display:block;font-weight:500;color:var(--va-muted);font-size:11px;letter-spacing:.08em;text-transform:uppercase}
.va-nav{display:flex;gap:20px;align-items:center;flex:1}
.va-nav a{font-weight:600;font-size:14px}
.va-nav a:hover{color:var(--va-primary)}
.va-actions{display:flex;gap:8px;align-items:center}
.icon-btn{
  width:42px;height:42px;border-radius:14px;border:1px solid var(--va-border);
  background:var(--va-surface);color:var(--va-text);display:grid;place-items:center;
}
.icon-btn:hover{transform:translateY(-1px);box-shadow:var(--va-shadow)}
.va-menu-toggle{display:none}

.va-hero{
  position:relative;overflow:hidden;border-radius:30px;margin-top:24px;min-height:520px;
  display:grid;align-items:end;background:
    linear-gradient(180deg,rgba(0,0,0,.08),rgba(0,0,0,.62)),
    url('https://images.unsplash.com/photo-1528127269322-539801943592?auto=format&fit=crop&w=1800&q=85') center/cover;
}
.va-hero-content{padding:clamp(28px,5vw,72px);color:#fff;max-width:900px}
.va-kicker{font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:.14em}
.va-hero h1{font-size:clamp(42px,7vw,92px);line-height:.98;margin:.2em 0;letter-spacing:-.055em}
.va-hero p{font-size:clamp(16px,2vw,21px);max-width:720px;color:rgba(255,255,255,.9)}
.va-searchbox{
  margin-top:26px;display:flex;gap:10px;background:#fff;border-radius:18px;padding:8px;
  max-width:760px;box-shadow:0 18px 60px rgba(0,0,0,.2);
}
.va-searchbox input{flex:1;border:0;outline:0;padding:12px 14px;color:#17201d;background:transparent}
.va-searchbox button{border:0;border-radius:14px;padding:0 22px;background:#0d5c46;color:#fff;font-weight:700}

.quick-cats{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.quick-cats a{
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);
  padding:8px 12px;border-radius:999px;font-weight:700;font-size:13px;backdrop-filter:blur(8px)
}

.va-section{padding:72px 0}
.va-section--soft{background:var(--va-surface)}
.section-head{display:flex;justify-content:space-between;gap:18px;align-items:end;margin-bottom:24px}
.section-head h2{font-size:clamp(28px,4vw,48px);line-height:1.05;margin:0;letter-spacing:-.035em}
.section-head p{margin:0;color:var(--va-muted);max-width:620px}
.section-link{font-weight:800;color:var(--va-primary)}

.va-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.va-card{
  background:var(--va-surface);border:1px solid var(--va-border);border-radius:var(--va-radius);
  overflow:hidden;transition:.2s ease;
}
.va-card:hover{transform:translateY(-3px);box-shadow:var(--va-shadow)}
.va-card-media{aspect-ratio:4/3;background:var(--va-surface-2);overflow:hidden}
.va-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.va-card:hover img{transform:scale(1.035)}
.va-card-body{padding:16px}
.va-card-meta{display:flex;gap:8px;flex-wrap:wrap;color:var(--va-muted);font-size:12px}
.va-card h3{margin:8px 0 4px;font-size:19px;line-height:1.25}
.va-card p{margin:0;color:var(--va-muted);font-size:14px}
.tag{display:inline-flex;padding:6px 9px;border-radius:999px;background:var(--va-surface-2);font-size:12px;font-weight:700}

.va-map{
  min-height:480px;border-radius:28px;position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 30% 30%,rgba(94,208,170,.2),transparent 30%),
    linear-gradient(135deg,var(--va-surface-2),var(--va-surface));
  border:1px solid var(--va-border);display:grid;place-items:center;text-align:center;padding:28px;
}
.va-map::before{
  content:"";position:absolute;inset:0;opacity:.3;
  background-image:linear-gradient(var(--va-border) 1px,transparent 1px),linear-gradient(90deg,var(--va-border) 1px,transparent 1px);
  background-size:42px 42px;
}
.va-map-inner{position:relative;z-index:1;max-width:620px}
.va-map-badge{font-size:64px}
.va-map h3{font-size:36px;margin:10px 0}

.va-ad{
  min-height:120px;border:1px dashed var(--va-border);border-radius:18px;
  display:grid;place-items:center;color:var(--va-muted);background:var(--va-surface);
  text-align:center;padding:16px;
}

.va-guide-layout{display:grid;grid-template-columns:280px 1fr;gap:28px}
.va-toc{
  position:sticky;top:98px;align-self:start;background:var(--va-surface);
  border:1px solid var(--va-border);border-radius:18px;padding:18px;
}
.va-toc h3{margin-top:0}
.va-toc a{display:block;padding:8px 0;color:var(--va-muted);font-size:14px}
.va-toc a:hover{color:var(--va-primary)}
.va-guide-content{
  background:var(--va-bg);border:1px solid var(--va-border);border-radius:24px;padding:clamp(20px,4vw,44px)
}
.va-guide-content h2{font-size:30px;margin-top:1.6em}
.author-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap;color:var(--va-muted);font-size:13px}
.verified{display:inline-flex;align-items:center;gap:4px;color:var(--va-primary);font-weight:800}
.hashtags{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0}
.hashtags a{color:var(--va-primary);font-weight:700;font-size:13px}

.va-fab{
  position:fixed;right:20px;bottom:20px;z-index:900;display:flex;flex-direction:column;gap:8px;
}
.va-fab .icon-btn{box-shadow:var(--va-shadow)}

.search-overlay{
  position:fixed;inset:0;background:color-mix(in srgb,var(--va-bg) 96%,transparent);
  z-index:2000;display:none;overflow:auto;padding:24px;
}
.search-overlay.is-open{display:block}
.search-panel{max-width:900px;margin:50px auto}
.search-top{display:flex;gap:10px}
.search-top input{
  width:100%;font-size:22px;padding:18px;border-radius:18px;border:1px solid var(--va-border);
  background:var(--va-surface);color:var(--va-text);outline:0
}
.search-groups{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}
.search-group{padding:18px;border:1px solid var(--va-border);border-radius:18px;background:var(--va-surface)}
.search-group strong{display:block;margin-bottom:10px}

.site-footer{padding:48px 0;border-top:1px solid var(--va-border);background:var(--va-surface)}
.footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:26px}
.site-footer h4{margin-top:0}
.site-footer a{display:block;color:var(--va-muted);padding:4px 0}

@media(max-width:1100px){
  .va-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .va-guide-layout{grid-template-columns:1fr}
  .va-toc{position:relative;top:auto}
}
@media(max-width:860px){
  .va-nav{display:none}
  .va-menu-toggle{display:grid}
  .va-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
  .search-groups{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .va-container{width:min(calc(100% - 20px),var(--va-container))}
  .va-header-inner{min-height:64px;gap:10px}
  .site-branding small{display:none}
  .va-actions .desktop-only{display:none}
  .va-hero{min-height:560px;border-radius:22px}
  .va-searchbox{display:block}
  .va-searchbox button{width:100%;height:48px;margin-top:6px}
  .va-grid{grid-template-columns:1fr}
  .va-section{padding:48px 0}
  .section-head{display:block}
  .section-head p{margin-top:10px}
  .footer-grid,.search-groups{grid-template-columns:1fr}
}


/* v0.2 UX/UI additions */
.mobile-drawer{
  position:fixed;inset:0;z-index:1800;display:none;
  background:color-mix(in srgb,var(--va-bg) 98%,transparent);
}
.mobile-drawer.is-open{display:block}
.mobile-drawer-panel{
  width:min(92vw,420px);height:100%;background:var(--va-bg);
  border-right:1px solid var(--va-border);padding:18px;overflow:auto;
}
.mobile-drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.mobile-menu-list{display:grid;gap:8px}
.mobile-menu-list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 14px;border-radius:14px;background:var(--va-surface);
  border:1px solid var(--va-border);font-weight:750
}
.mobile-menu-section{margin-top:20px}
.mobile-menu-section h4{margin:0 0 10px;color:var(--va-muted);font-size:12px;text-transform:uppercase;letter-spacing:.08em}

.lang-menu{position:relative}
.lang-dropdown{
  position:absolute;right:0;top:50px;min-width:220px;padding:8px;
  background:var(--va-bg);border:1px solid var(--va-border);border-radius:16px;
  box-shadow:var(--va-shadow);display:none;z-index:1200
}
.lang-dropdown.is-open{display:block}
.lang-dropdown button{
  width:100%;display:flex;justify-content:space-between;gap:12px;padding:10px 12px;
  background:transparent;border:0;border-radius:12px;color:var(--va-text);text-align:left
}
.lang-dropdown button:hover{background:var(--va-surface)}
.lang-dropdown .active{font-weight:800;color:var(--va-primary)}

.va-pagination-wrap{
  display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;margin:34px 0 8px
}
.va-pagination{
  display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:center
}
.va-pagination .page-numbers,.va-page-jump button{
  min-width:42px;height:42px;padding:0 12px;border:1px solid var(--va-border);
  border-radius:12px;display:inline-grid;place-items:center;background:var(--va-surface);
  color:var(--va-text);font-weight:700
}
.va-pagination .current{background:var(--va-primary);color:white;border-color:var(--va-primary)}
.va-page-jump{display:flex;align-items:center;gap:7px}
.va-page-jump input{
  width:74px;height:42px;border:1px solid var(--va-border);border-radius:12px;
  background:var(--va-bg);color:var(--va-text);text-align:center;outline:0
}
.va-page-jump button{cursor:pointer}

.va-filterbar{
  display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:18px 0 26px
}
.va-filterbar .chip{
  padding:9px 12px;border:1px solid var(--va-border);border-radius:999px;
  background:var(--va-surface);font-size:13px;font-weight:750
}

.va-content-shell{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px
}
.va-sidepanel{
  position:sticky;top:98px;align-self:start;display:grid;gap:16px
}
.va-sidebox{
  border:1px solid var(--va-border);border-radius:18px;background:var(--va-surface);padding:18px
}
.va-sidebox h3{margin:0 0 10px;font-size:17px}
.va-sidebox a{display:block;padding:7px 0;color:var(--va-muted)}
.va-sidebox a:hover{color:var(--va-primary)}

.va-featured-wrap{
  border-radius:24px;overflow:hidden;background:var(--va-surface);margin:22px 0
}
.va-featured-wrap img{width:100%;aspect-ratio:16/9;object-fit:cover}
.va-gallery-strip{
  display:grid;grid-template-columns:2fr repeat(2,1fr);gap:8px;border-radius:24px;overflow:hidden;margin:22px 0
}
.va-gallery-strip img{width:100%;height:100%;object-fit:cover;min-height:190px}
.va-gallery-strip .main{grid-row:span 2;min-height:388px}

.va-place-toolbar{
  display:flex;gap:8px;flex-wrap:wrap;margin:18px 0 24px
}
.va-action-pill{
  display:inline-flex;align-items:center;gap:8px;padding:10px 13px;border-radius:999px;
  border:1px solid var(--va-border);background:var(--va-surface);font-weight:750
}

@media(max-width:1000px){
  .va-content-shell{grid-template-columns:1fr}
  .va-sidepanel{position:relative;top:auto;grid-template-columns:repeat(2,1fr)}
}
@media(max-width:700px){
  .va-sidepanel{grid-template-columns:1fr}
  .va-gallery-strip{grid-template-columns:1fr 1fr}
  .va-gallery-strip .main{grid-column:1/-1;grid-row:auto;min-height:240px}
  .va-gallery-strip img{min-height:150px}
}