/*
Theme Name: Hello Elementor Child — BST Inbound
Theme URI: https://blue.ken-marketing.com
Description: Child theme of Hello Elementor for BST Inbound B2B (Vietnam DMC & MICE). Brand tokens, self-hosted fonts (Darker Grotesque + Open Sans) and performance tweaks. Safe for Hello Elementor updates.
Author: BST / Ken Marketing
Template: hello-elementor
Version: 1.0.0
Text Domain: hello-elementor-child
*/

/* ===== BST BRAND TOKENS (Brand Guidelines) ===== */
:root{
  --bst-blue:#296bff;      /* Cobalt Blue — primary */
  --bst-blue-d:#003692;    /* Dark Sky */
  --bst-blue-dd:#002058;
  --bst-b1:#5489ff; --bst-b2:#6997ff; --bst-b3:#94b5ff; --bst-b4:#bfd3ff; --bst-b5:#d4e1ff;
  --bst-orange:#ff9700;    /* Flame Orange — accent */
  --bst-orange-l:#ffd79e;
  --bst-ink:#2d333e;
  --bst-mut:#5c5c5c;
  --bst-mut2:#858585;
  --bst-line:#ebebeb;
  --bst-soft:#f4f7fe;
  --bst-soft2:#eef3fd;
  --bst-radius:18px;
  --bst-shadow:0 22px 50px -24px rgba(12,34,82,.35);
  --bst-shadow-soft:0 18px 40px -22px rgba(12,34,82,.28);
}

/* ===== BASE TYPOGRAPHY (applies site-wide incl. non-Elementor areas) ===== */
body{
  font-family:"Open Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  color:var(--bst-ink);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6,
.elementor-heading-title{
  font-family:"Darker Grotesque","Open Sans",system-ui,sans-serif;
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.02;
}

/* Darker Grotesque runs small/tall — nudge heading sizes for balance */
h1{line-height:.98}

/* Links & selection */
a{color:var(--bst-blue)}
::selection{background:var(--bst-blue);color:#fff}

/* ===== REUSABLE BRAND HELPERS (usable via Elementor CSS Classes) ===== */
.bst-accent{color:var(--bst-blue)!important}
.bst-accent-orange{color:var(--bst-orange)!important}

/* Primary button polish when Elementor button has class .bst-btn */
.bst-btn .elementor-button{
  border-radius:999px!important;
  transition:transform .4s cubic-bezier(.22,.61,.17,1),box-shadow .4s cubic-bezier(.22,.61,.17,1),background .3s!important;
}
.bst-btn .elementor-button:hover{transform:translateY(-2px)}

/* Eyebrow pill helper */
.bst-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:"Open Sans",sans-serif;font-weight:700;font-size:11.5px;
  letter-spacing:.22em;text-transform:uppercase;color:var(--bst-blue);
  background:var(--bst-soft2);border:1px solid #dbe6ff;padding:7px 14px;border-radius:999px;
}

/* Card hover lift helper */
.bst-lift{transition:transform .5s cubic-bezier(.22,.61,.17,1),box-shadow .5s cubic-bezier(.22,.61,.17,1)!important}
.bst-lift:hover{transform:translateY(-6px)}

/* ===== GRID HELPERS (prototype breakpoints: 1020 / 720) ===== */
.bst-grid-2, .bst-grid-2 > .e-con-inner,
.bst-grid-3, .bst-grid-3 > .e-con-inner,
.bst-grid-5, .bst-grid-5 > .e-con-inner{
  display:grid!important; width:100%; align-content:stretch;
}
.bst-grid-2, .bst-grid-2 > .e-con-inner{grid-template-columns:repeat(2,1fr);gap:22px}
.bst-grid-3, .bst-grid-3 > .e-con-inner{grid-template-columns:repeat(3,1fr);gap:20px}
.bst-grid-5, .bst-grid-5 > .e-con-inner{grid-template-columns:repeat(5,1fr);gap:16px}
@media(max-width:1020px){
  .bst-grid-5, .bst-grid-5 > .e-con-inner{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:720px){
  .bst-grid-5, .bst-grid-5 > .e-con-inner{grid-template-columns:repeat(2,1fr);gap:14px}
  .bst-grid-3, .bst-grid-3 > .e-con-inner,
  .bst-grid-2, .bst-grid-2 > .e-con-inner{grid-template-columns:1fr;gap:18px}
}
@media(max-width:480px){
  .bst-grid-5, .bst-grid-5 > .e-con-inner{grid-template-columns:1fr}
}

.bst-grid-4g, .bst-grid-4g > .e-con-inner{display:grid!important;width:100%;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:1020px){.bst-grid-4g, .bst-grid-4g > .e-con-inner{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.bst-grid-4g, .bst-grid-4g > .e-con-inner{grid-template-columns:1fr}}
.bst-grid-4, .bst-grid-4 > .e-con-inner{display:grid!important;width:100%;grid-template-columns:repeat(4,1fr);gap:0}
@media(max-width:720px){.bst-grid-4, .bst-grid-4 > .e-con-inner{grid-template-columns:repeat(2,1fr);gap:24px 0}}
/* vertical-centered 2-col */
.bst-vc, .bst-vc > .e-con-inner{align-items:center!important}
/* stat divider */
.bst-grid-4 .bst-stat{position:relative}
.bst-grid-4 .bst-stat + .bst-stat::before{content:"";position:absolute;left:0;top:16%;height:68%;width:1px;background:var(--bst-line)}
@media(max-width:720px){.bst-grid-4 .bst-stat:nth-child(odd) + .bst-stat::before,.bst-grid-4 .bst-stat + .bst-stat::before{display:none}}
/* partner logos row */
.bst-logos, .bst-logos > .e-con-inner{display:grid!important;width:100%;grid-template-columns:repeat(6,1fr);gap:18px;align-items:center}
@media(max-width:1020px){.bst-logos, .bst-logos > .e-con-inner{grid-template-columns:repeat(3,1fr);gap:22px 18px}}
@media(max-width:480px){.bst-logos, .bst-logos > .e-con-inner{grid-template-columns:repeat(2,1fr)}}
.bst-logos .elementor-widget-image img{height:34px;width:auto;margin:0 auto;object-fit:contain;filter:grayscale(1);opacity:.62;transition:.35s cubic-bezier(.22,.61,.17,1)}
.bst-logos .elementor-widget-image img:hover{filter:none;opacity:1}
/* case card horizontal */
.bst-ccard{grid-template-columns:220px 1fr}
.bst-ccard, .bst-ccard > .e-con-inner{display:grid!important}
@media(max-width:720px){.bst-ccard, .bst-ccard > .e-con-inner{grid-template-columns:1fr}.bst-ccard-img{min-height:200px!important;aspect-ratio:16/10}}

/* ===== CARD CHROME ===== */
.bst-card, .bst-card-dark{border-radius:var(--bst-radius);overflow:hidden;height:100%}
.bst-card{background:#fff;border:1px solid var(--bst-line)}
.bst-card-dark{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12)}
/* FIXED IMAGE FRAMES (match prototype) — content cards 16:10, product cards 4:3 */
.bst-card .elementor-widget-image,
.bst-card-dark .elementor-widget-image{width:100%;line-height:0}
.bst-card .elementor-widget-image img,
.bst-card-dark .elementor-widget-image img{display:block;width:100%!important;height:auto!important;object-fit:cover;transition:transform .7s cubic-bezier(.22,.61,.17,1)}
.bst-card .elementor-widget-image img{aspect-ratio:16/10}
.bst-card-dark .elementor-widget-image img{aspect-ratio:4/3}
/* feature/teaser images (MICE, About) — 4:3 framed when tagged */
.bst-imgframe .elementor-widget-image img{display:block;width:100%!important;height:auto!important;aspect-ratio:4/3;object-fit:cover}
.bst-lift{transition:transform .5s cubic-bezier(.22,.61,.17,1),box-shadow .5s cubic-bezier(.22,.61,.17,1)!important}
.bst-lift:hover{transform:translateY(-6px)!important;box-shadow:var(--bst-shadow)!important}
.bst-lift:hover .elementor-widget-image img{transform:scale(1.06)}
.bst-shadow{box-shadow:var(--bst-shadow-soft)!important}

/* note banner */
.bst-note{background:#fff7ec!important;border:1px solid #ffe3bd!important;border-radius:12px!important}
.bst-note *{color:#8a5a12!important}

/* hero subtitle constrain */
.bst-hero-sub{max-width:720px;margin-left:auto;margin-right:auto}

/* timeline */
.bst-timeline{position:relative;max-width:760px;margin:0 auto;width:100%}
.bst-tl-item{position:relative;padding-left:40px;padding-bottom:32px;border-left:2px solid #dbe6ff;margin-left:8px}
.bst-tl-item:last-child{border-left-color:transparent;padding-bottom:0}
.bst-tl-dot{position:absolute;left:-9px;top:2px;width:16px;height:16px;border-radius:50%;background:var(--bst-blue);box-shadow:0 0 0 4px #dbe6ff}
.bst-tl-year{font-family:"Darker Grotesque";font-weight:800;color:var(--bst-blue);font-size:24px;line-height:1}
.bst-tl-title{font-weight:700;color:var(--bst-ink);margin:3px 0;font-size:17px}
.bst-tl-desc{color:var(--bst-mut);font-size:14.5px;line-height:1.55}

/* arrow link */
.bst-arrow a, a.bst-arrow{color:var(--bst-blue)!important;font-weight:700;display:inline-flex;gap:7px;align-items:center;transition:gap .3s cubic-bezier(.22,.61,.17,1)}
.bst-arrow a:hover, a.bst-arrow:hover{gap:12px}

/* eyebrow centering inside flex */
.bst-eyebrow{width:max-content}

/* dark section helpers */
.bst-ov-dark{position:relative}

/* header sticky */
.bst-header{transition:box-shadow .4s cubic-bezier(.22,.61,.17,1),background .3s}
.bst-header.elementor-sticky--effects{box-shadow:0 10px 30px -18px rgba(12,34,82,.3);background:rgba(255,255,255,.95)!important;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}
.bst-nav .elementor-item{font-weight:600!important;white-space:nowrap}
.bst-header > .e-con-inner{flex-wrap:nowrap!important}
.bst-nav .elementor-nav-menu{flex-wrap:nowrap!important}
.bst-nav .elementor-nav-menu--main .elementor-item{padding-left:11px!important;padding-right:11px!important;font-size:14.5px!important}
.bst-header-cta .elementor-button{white-space:nowrap!important;padding:11px 18px!important}
@media(max-width:1180px){ .bst-nav .elementor-nav-menu--main .elementor-item{padding-left:8px!important;padding-right:8px!important;font-size:14px!important} }
/* mobile/tablet header (≤1020, match prototype): logo + burger only */
@media(max-width:1020px){
  .bst-lang{display:none!important}
  .bst-header-cta{display:none!important}
  .bst-header .e-con-inner{flex-direction:row!important;flex-wrap:nowrap!important;align-items:center!important;justify-content:space-between!important;gap:10px!important}
  .bst-header .bst-nav{flex:0 0 auto!important;width:auto!important;order:2;margin-left:auto}
  .bst-header .bst-logo{flex:0 0 auto!important}
  .bst-nav .elementor-menu-toggle{display:inline-flex!important}
  .bst-nav .elementor-menu-toggle i{color:var(--bst-ink)!important}
}
@media(max-width:600px){
  .bst-topbar{display:none!important}
  .bst-header .bst-logo,.bst-header .bst-logo img{max-width:104px!important;width:104px!important}
  .bst-header{padding-left:16px!important;padding-right:16px!important;min-height:60px!important}
}

/* footer grid */
.bst-footgrid, .bst-footgrid > .e-con-inner{display:grid!important;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px;width:100%}
@media(max-width:1024px){.bst-footgrid, .bst-footgrid > .e-con-inner{grid-template-columns:1fr 1fr;gap:30px}}
@media(max-width:560px){.bst-footgrid, .bst-footgrid > .e-con-inner{grid-template-columns:1fr}}
.bst-footgrid a:hover{color:#fff!important}

/* Floating chat (WhatsApp/WeChat/LINE) container */
.bst-chat{position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:9990;display:flex;flex-direction:column;gap:12px}
.bst-chat a{width:50px;height:50px;border-radius:50%;display:grid;place-items:center;color:#fff;box-shadow:0 10px 24px -8px rgba(0,0,0,.5);transition:transform .35s cubic-bezier(.22,.61,.17,1)}
.bst-chat a:hover{transform:scale(1.1)}
.bst-chat .wa{background:#25d366}.bst-chat .wc{background:#09b83e}.bst-chat .ln{background:#06c755}
.bst-chat a svg{width:24px;height:24px}
@media(max-width:768px){.bst-chat a{width:44px;height:44px}.bst-chat a svg{width:20px;height:20px}}

/* ===================== SHORTCODE COMPONENTS ===================== */
/* filter bar */
.bst-filterbar{background:#fff;border:1px solid var(--bst-line);border-radius:18px;box-shadow:var(--bst-shadow-soft);
  padding:18px;display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:14px;align-items:end;margin-bottom:4px}
.bst-filterbar label{display:block;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--bst-mut2);font-weight:700;margin-bottom:7px}
.bst-filterbar select{width:100%;padding:12px 14px;border:1px solid var(--bst-line);border-radius:10px;font-family:"Open Sans";font-size:14.5px;color:var(--bst-ink);background:#fff;cursor:pointer}
.bst-filterbar .bst-filter-reset{height:48px;background:var(--bst-soft2);color:var(--bst-blue);border:1px solid #dbe6ff;border-radius:999px;padding:0 22px;font-weight:700;font-family:"Open Sans";cursor:pointer;transition:.3s}
.bst-filterbar .bst-filter-reset:hover{background:var(--bst-blue);color:#fff;border-color:var(--bst-blue)}
@media(max-width:860px){.bst-filterbar{grid-template-columns:1fr}}

/* program card (anchor) */
.bst-prog-grid{margin-top:6px}
.bst-prog-card{display:flex;flex-direction:column;text-decoration:none;color:inherit}
.bst-prog-img{display:block;height:200px;background-size:cover;background-position:center;background-color:var(--bst-soft2)}
.bst-prog-body{display:flex;flex-direction:column;padding:20px;flex:1}
.bst-prog-tag{font-size:12px;color:var(--bst-mut2);font-weight:700;margin-bottom:9px}
.bst-prog-tag b{color:var(--bst-blue)}
.bst-prog-title{font-family:"Darker Grotesque";font-weight:700;font-size:23px;line-height:1.02;color:var(--bst-ink);margin-bottom:9px}
.bst-prog-desc{color:var(--bst-mut);font-size:14px;line-height:1.5;margin-bottom:16px;flex:1}
.bst-prog-link{margin-top:auto}

/* single program/case */
.bst-prog-meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.bst-chip-meta{background:var(--bst-soft2);border:1px solid #dbe6ff;color:var(--bst-blue);border-radius:999px;padding:8px 16px;font-size:13.5px;font-weight:600}
.bst-single-grid{display:grid;grid-template-columns:1fr 340px;gap:40px;align-items:start}
@media(max-width:900px){.bst-single-grid{grid-template-columns:1fr}}
.bst-sec-h{font-family:"Darker Grotesque";font-weight:800;font-size:30px;color:var(--bst-ink);margin:0 0 18px}
/* native accordion */
.bst-acc{border:1px solid var(--bst-line);border-radius:14px;overflow:hidden;margin-bottom:34px}
.bst-acc-item{border-bottom:1px solid var(--bst-line)}
.bst-acc-item:last-child{border-bottom:0}
.bst-acc-item summary{list-style:none;cursor:pointer;padding:18px 22px;font-family:"Darker Grotesque";font-weight:700;font-size:20px;color:var(--bst-ink);display:flex;align-items:center;justify-content:space-between;transition:color .25s}
.bst-acc-item summary::-webkit-details-marker{display:none}
.bst-acc-item summary::after{content:"+";color:var(--bst-blue);font-weight:700;font-size:22px;margin-left:12px}
.bst-acc-item[open] summary{color:var(--bst-blue)}
.bst-acc-item[open] summary::after{content:"–"}
.bst-acc-body{padding:0 22px 20px;color:var(--bst-mut);font-size:15px;line-height:1.6}
.bst-acc-body p{margin:0}
/* included/excluded */
.bst-incl-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
@media(max-width:600px){.bst-incl-grid{grid-template-columns:1fr}}
.bst-incl,.bst-excl{background:var(--bst-soft);border:1px solid var(--bst-line);border-radius:14px;padding:22px 24px}
.bst-incl h3,.bst-excl h3{font-family:"Darker Grotesque";font-weight:700;font-size:20px;margin:0 0 12px}
.bst-incl h3{color:#0a8a3c}.bst-excl h3{color:#b23b3b}
.bst-incl ul,.bst-excl ul{list-style:none;padding:0;margin:0}
.bst-incl li,.bst-excl li{padding:6px 0;font-size:14.5px;color:var(--bst-ink);border-bottom:1px dashed var(--bst-line)}
.bst-incl li:last-child,.bst-excl li:last-child{border-bottom:0}
/* side card */
.bst-single-side{position:sticky;top:100px}
.bst-side-card{background:linear-gradient(160deg,#00224f,#003692);color:#fff;border-radius:18px;padding:28px;box-shadow:var(--bst-shadow)}
.bst-side-card h3{font-family:"Darker Grotesque";font-weight:800;font-size:24px;margin:0 0 10px;color:#fff}
.bst-side-card p{color:#cfe0ff;font-size:14.5px;line-height:1.6;margin:0 0 18px}
.bst-side-btn{display:block;text-align:center;background:var(--bst-blue);color:#fff!important;border-radius:999px;padding:14px;font-weight:700;text-decoration:none;transition:.3s}
.bst-side-btn:hover{background:#fff;color:var(--bst-blue)!important}
.bst-side-note{font-size:12.5px;color:#9fc0ff;margin-top:14px;line-height:1.5}

/* case card (shortcode) */
.bst-ccard{text-decoration:none;color:inherit}
.bst-ccard-img{display:block;background-size:cover;background-position:center;min-height:100%;background-color:var(--bst-soft2)}
.bst-cb{display:flex;flex-direction:column;padding:24px}
.bst-cb-lab{font-size:11px;letter-spacing:.15em;text-transform:uppercase;color:var(--bst-orange);font-weight:800;margin-bottom:10px}
.bst-cb-title{font-family:"Darker Grotesque";font-weight:700;font-size:23px;color:var(--bst-ink);line-height:1.04;margin-bottom:11px}
.bst-cb-desc{color:var(--bst-mut);font-size:14px;line-height:1.55;margin-bottom:12px}
.bst-cb-res{font-weight:700;color:var(--bst-ink);font-size:14px;margin-bottom:14px}
/* case single */
.bst-case-single{max-width:800px;margin:0 auto}
.bst-case-p{color:var(--bst-mut);font-size:16.5px;line-height:1.7;margin:0 0 26px}
.bst-case-result{background:var(--bst-soft2);border-left:3px solid var(--bst-blue);border-radius:10px;padding:16px 20px;font-weight:700;color:var(--bst-ink);margin:0 0 26px}
.bst-case-quote{font-family:"Darker Grotesque";font-weight:600;font-size:24px;color:var(--bst-ink);line-height:1.3;border-top:1px solid var(--bst-line);padding-top:26px}
.bst-case-quote span{display:block;font-family:"Open Sans";font-size:14px;font-weight:700;color:var(--bst-blue);margin-top:12px}

/* contact 2-col */
.bst-grid-2cf, .bst-grid-2cf > .e-con-inner{display:grid!important;grid-template-columns:1fr 1.1fr;gap:44px;width:100%;align-items:start}
@media(max-width:900px){.bst-grid-2cf, .bst-grid-2cf > .e-con-inner{grid-template-columns:1fr;gap:34px}}
/* Elementor form fields — brand */
.bst-form .elementor-field-group .elementor-field{border-radius:10px!important;padding:12px 14px!important;font-family:"Open Sans"!important;border:1px solid var(--bst-line)!important;font-size:15px}
.bst-form .elementor-field-label{font-weight:700!important;color:var(--bst-ink)!important;font-size:13.5px!important}
.bst-form textarea.elementor-field{min-height:120px}
.bst-form .elementor-button{border-radius:999px!important;font-weight:700!important}

/* ===================== v2 PROTOTYPE-MATCH OVERRIDES ===================== */
/* program card image → fixed 16:10 frame */
.bst-prog-img{height:auto!important;aspect-ratio:16/10}
/* filter bar: native-looking selects with chevron */
.bst-filterbar select{appearance:none;-webkit-appearance:none;padding-right:36px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23858585' stroke-width='3'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 13px center}
.bst-filterbar select:focus{outline:none;border-color:var(--bst-blue)!important;box-shadow:0 0 0 3px rgba(41,107,255,.12)}
.bst-filter-count{margin-top:16px}
@media(max-width:720px){
  .bst-single-grid{grid-template-columns:1fr!important}
  .bst-single-side{position:static!important}
  .bst-filterbar{padding:14px;gap:10px}
  .bst-grid-2cf, .bst-grid-2cf > .e-con-inner{gap:28px!important}
}

/* Contact Us menu item: only in mobile burger, not desktop nav (desktop has CTA button) */
@media(min-width:1021px){ .elementor-nav-menu .bst-navhide-desktop{display:none!important} }
/* floating chat: a touch smaller & lower on mobile so it doesn't cover hero text */
@media(max-width:600px){ .bst-chat{top:auto;bottom:16px;transform:none;gap:10px} .bst-chat a{width:44px;height:44px} }