/*
Theme Name: Bac Thanh Vina
Theme URI: https://bacthanhvina.com
Author: Bac Thanh Vina
Author URI: https://bacthanhvina.com
Description: Theme WordPress cho Bac Thanh Vina Co., Ltd — chuyên sản xuất gia công mút xốp PU, EVA, PE, CR, EPDM. Website B2B công nghiệp.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: foamvina
Tags: one-page, custom-logo, custom-menu, featured-images, translation-ready
*/

/* ═══════════════════════════════════════════════
   RESET & BASE
   ═══════════════════════════════════════════════ */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Be Vietnam Pro',sans-serif;color:#333;background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ═══════════════════════════════════════════════
   TOP BAR
   ═══════════════════════════════════════════════ */
.topbar{background:#1a3a5c;color:#fff;font-size:13px;padding:8px 0}
.topbar .container{display:flex;justify-content:space-between;align-items:center}
.topbar a{color:#a8c8e8;transition:.2s}
.topbar a:hover{color:#fff}
.topbar-left{display:flex;gap:20px;align-items:center}
.topbar-left span{display:flex;align-items:center;gap:6px}
.topbar-right{display:flex;gap:20px;align-items:center}

/* ═══════════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════════ */
.site-nav{background:#fff;border-bottom:1px solid #e8e8e8;position:sticky;top:0;z-index:100;transition:box-shadow .3s}
.site-nav.scrolled{box-shadow:0 2px 12px rgba(0,0,0,.06)}
.nav-inner{height:70px;display:flex;align-items:center;justify-content:space-between}

.site-logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.site-logo img.logo-img,.site-logo .custom-logo{height:44px;width:auto;max-width:44px;object-fit:contain;border-radius:6px}
.site-logo img{height:44px;width:auto}
.logo-fallback{width:48px;height:48px;background:linear-gradient(135deg,#1a3a5c,#2e6da4);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:16px}
.logo-text h1{font-size:22px;font-weight:700;color:#1a3a5c;letter-spacing:-.5px;line-height:1.1}
.logo-text h1 span{color:#2e6da4}
.logo-text small{display:block;font-size:10px;color:#888;font-weight:400;letter-spacing:1.5px;text-transform:uppercase}

.main-menu{display:flex;gap:0}
.main-menu li a{display:block;padding:24px 18px;font-size:14px;font-weight:500;color:#555;transition:.2s;border-bottom:2px solid transparent}
.main-menu li a:hover,.main-menu li.current-menu-item a{color:#1a3a5c;border-bottom-color:#2e6da4}

.nav-actions{display:flex;align-items:center;gap:12px}
.lang-switch{display:flex;gap:0;border:1px solid #ddd;border-radius:4px;overflow:hidden}
.lang-switch a{padding:6px 10px;font-size:12px;font-weight:600;color:#888;border-right:1px solid #ddd;transition:.2s}
.lang-switch a:last-child{border-right:none}
.lang-switch a.active{background:#1a3a5c;color:#fff;border-color:#1a3a5c}

.btn-cta{padding:10px 24px;background:#d4380d;color:#fff!important;font-weight:600;font-size:14px;border-radius:4px;transition:.2s}
.btn-cta:hover{background:#b8320b}

.mobile-toggle{display:none;background:none;border:none;font-size:24px;color:#1a3a5c;cursor:pointer}

/* ═══════════════════════════════════════════════
   HERO SLIDER
   ═══════════════════════════════════════════════ */
.hero-slider{position:relative;height:520px;overflow:hidden}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1.2s;background-size:cover;background-position:center}
.hero-slide.active{opacity:1}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.65) 0%,rgba(0,0,0,.25) 55%,transparent 100%)}
.hero-content{position:absolute;inset:0;display:flex;align-items:center;z-index:2}
.hero-text{color:#fff;max-width:600px}
.hero-badge{display:inline-block;background:rgba(255,255,255,.12);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.2);padding:6px 16px;border-radius:4px;font-size:12px;font-weight:600;letter-spacing:1px;text-transform:uppercase;margin-bottom:20px}
.hero-text h1.hero-title,.hero-text h2{font-size:clamp(2rem,5vw,3.2rem);font-weight:800;line-height:1.15;margin-bottom:16px;text-shadow:0 2px 20px rgba(0,0,0,.3)}
.hero-desc{font-size:16px;color:rgba(255,255,255,.85);margin-bottom:28px;line-height:1.7}
.hero-buttons{display:flex;gap:12px;flex-wrap:wrap}
.hero-buttons a{padding:14px 32px;font-size:15px;font-weight:600;border-radius:4px;transition:.3s}
.btn-hero-primary{background:#d4380d;color:#fff!important;border:2px solid #d4380d}
.btn-hero-primary:hover{background:#b8320b;border-color:#b8320b}
.btn-hero-secondary{background:transparent;color:#fff!important;border:2px solid rgba(255,255,255,.5)}
.btn-hero-secondary:hover{background:rgba(255,255,255,.1);border-color:#fff}

.hero-dots{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);z-index:3;display:flex;gap:10px}
.hero-dots span{width:12px;height:4px;border-radius:2px;background:rgba(255,255,255,.35);cursor:pointer;transition:.3s}
.hero-dots span.active{width:32px;background:#fff}

/* ═══════════════════════════════════════════════
   USP SECTION
   ═══════════════════════════════════════════════ */
.section-usp{padding:64px 0;background:#f7f8fa;border-bottom:1px solid #eee}
.section-usp h3{text-align:center;font-size:22px;font-weight:700;color:#1a3a5c;margin-bottom:40px}
.usp-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.usp-item{text-align:center}
.usp-icon{width:68px;height:68px;margin:0 auto 16px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:28px}
.usp-icon.u1{background:#e8f4fd}
.usp-icon.u2{background:#fdf2e8}
.usp-icon.u3{background:#e8fdf0}
.usp-icon.u4{background:#f0e8fd}
.usp-item h4{font-size:15px;font-weight:700;color:#1a3a5c;margin-bottom:6px}
.usp-item p{font-size:13px;color:#777;line-height:1.6}
.usp-cta{text-align:center;margin-top:36px}
.usp-cta a{display:inline-block;padding:12px 36px;border:2px solid #1a3a5c;color:#1a3a5c;font-weight:600;font-size:14px;border-radius:4px;transition:.3s}
.usp-cta a:hover{background:#1a3a5c;color:#fff}

/* ═══════════════════════════════════════════════
   SERVICES / PRODUCTS
   ═══════════════════════════════════════════════ */
.section-services{padding:70px 0}
.section-top{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:36px}
.section-top h3{font-size:24px;font-weight:700;color:#1a3a5c}
.section-top p{font-size:14px;color:#888;margin-top:6px}
.section-top a{font-size:14px;font-weight:600;color:#2e6da4}

.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.service-card{border-radius:8px;overflow:hidden;border:1px solid #eee;transition:.3s;background:#fff;display:block;color:inherit}
.service-card:hover{box-shadow:0 8px 32px rgba(0,0,0,.1);transform:translateY(-4px)}
.service-photo{height:220px;background-size:cover;background-position:center;position:relative}
.service-photo .service-photo-overlay{position:absolute;bottom:0;left:0;right:0;padding:10px 16px;background:linear-gradient(transparent,rgba(0,0,0,.5));color:#fff;font-size:11px}
.service-info{padding:20px}
.service-info h4{font-size:16px;font-weight:700;color:#1a3a5c;margin-bottom:6px}
.service-info p{font-size:13px;color:#777;line-height:1.6}
.service-link{display:inline-flex;align-items:center;gap:4px;margin-top:12px;font-size:13px;font-weight:600;color:#2e6da4;transition:.2s}
.service-card:hover .service-link{color:#d4380d}

/* ═══════════════════════════════════════════════
   CTA BANNER
   ═══════════════════════════════════════════════ */
.cta-banner{background:linear-gradient(135deg,#1a3a5c 0%,#2e6da4 100%);padding:48px 24px;text-align:center;color:#fff}
.cta-banner h3{font-size:20px;font-weight:600;margin-bottom:8px}
.cta-banner p{font-size:14px;color:rgba(255,255,255,.7);margin-bottom:20px}
.cta-banner a{display:inline-block;padding:12px 36px;background:#d4380d;color:#fff;font-weight:600;font-size:14px;border-radius:4px;transition:.3s}
.cta-banner a:hover{background:#fff;color:#1a3a5c}

/* ═══════════════════════════════════════════════
   CLIENTS & PARTNERS — LOGO STYLE
   ═══════════════════════════════════════════════ */
.section-clients{padding:70px 0;background:#f7f8fa;border-top:1px solid #eee}

.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#e0e0e0;border-radius:8px;overflow:hidden;margin-bottom:50px}
.stat-box{background:#fff;padding:28px 20px;text-align:center}
.stat-box .val{font-size:2rem;font-weight:800;color:#1a3a5c;line-height:1}
.stat-box .val span{color:#d4380d}
.stat-box .label{font-size:12px;color:#888;margin-top:6px}

.partner-block{margin-bottom:48px}
.partner-block:last-child{margin-bottom:0}
.partner-heading{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.partner-heading h4{font-size:15px;font-weight:700;color:#1a3a5c;text-transform:uppercase;letter-spacing:.5px;white-space:nowrap}
.partner-heading::after{content:'';flex:1;height:1px;background:#ddd}
.partner-desc{font-size:14px;color:#888;margin-bottom:16px}

/* Logo grid — real image logos */
.logo-grid{display:flex;flex-wrap:wrap;gap:16px}
.logo-item{
  width:160px;height:72px;
  background:#fff;border:1px solid #e0e0e0;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  padding:12px 16px;transition:.3s;overflow:hidden
}
.logo-item:hover{border-color:#2e6da4;box-shadow:0 4px 16px rgba(0,0,0,.06)}
.logo-item img{max-height:40px;max-width:120px;object-fit:contain;filter:grayscale(40%);transition:.3s}
.logo-item:hover img{filter:grayscale(0%)}
/* Fallback for text logos */
.logo-item.text-logo{font-size:14px;font-weight:700;color:#999;letter-spacing:.5px}
.logo-item.text-logo:hover{color:#1a3a5c}

/* Client logo grid — larger, 5 columns */
.client-logo-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.client-logo-card{
  background:#fff;border:1px solid #e0e0e0;border-radius:8px;
  padding:16px;text-align:center;transition:.3s
}
.client-logo-card:hover{border-color:#2e6da4;box-shadow:0 4px 16px rgba(0,0,0,.06)}
.client-logo-card .logo-wrap{height:50px;display:flex;align-items:center;justify-content:center;margin-bottom:8px}
.client-logo-card .logo-wrap img{max-height:40px;max-width:100%;object-fit:contain;filter:grayscale(30%);transition:.3s}
.client-logo-card:hover .logo-wrap img{filter:grayscale(0%)}
/* Fallback: initials circle */
.client-initials{
  width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;margin:0 auto
}
.client-initials.kr{background:#e8f0fd;color:#2e6da4}
.client-initials.vn{background:#e8fdf0;color:#0d843a}
.client-initials.jp{background:#fdf2e8;color:#d4730d}
.client-logo-card .client-name{font-size:11px;font-weight:600;color:#555;margin-top:6px;line-height:1.3}
.client-logo-card .client-sub{font-size:10px;color:#aaa;margin-top:2px}

/* ═══════════════════════════════════════════════
   BLOG / TECHNICAL ARTICLES
   ═══════════════════════════════════════════════ */
.section-blog{padding:70px 0}
.blog-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.blog-card{border:1px solid #eee;border-radius:8px;overflow:hidden;transition:.3s;background:#fff;display:block;color:inherit}
.blog-card:hover{box-shadow:0 4px 20px rgba(0,0,0,.08);transform:translateY(-2px)}
.blog-thumb{height:150px;background-size:cover;background-position:center;background-color:#e8e8e8}
.blog-card .blog-info{padding:16px}
.blog-card .blog-info h5{font-size:14px;font-weight:600;color:#1a3a5c;margin-bottom:6px;line-height:1.4}
.blog-card .blog-info p{font-size:12px;color:#888;line-height:1.5}
.blog-card .blog-date{font-size:11px;color:#aaa;margin-top:8px}

/* ═══════════════════════════════════════════════
   CONTACT SECTION
   ═══════════════════════════════════════════════ */
.section-contact{padding:64px 0;background:#1a3a5c;color:#fff}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px}
.contact-left h3{font-size:22px;font-weight:700;margin-bottom:8px}
.contact-left>p{font-size:14px;color:rgba(255,255,255,.6);margin-bottom:24px}
.contact-channels{display:flex;flex-direction:column;gap:16px}
.channel-item{display:flex;align-items:flex-start;gap:14px}
.channel-icon{width:40px;height:40px;background:rgba(255,255,255,.1);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.channel-item h5{font-size:14px;font-weight:600;margin-bottom:2px}
.channel-item p{font-size:13px;color:rgba(255,255,255,.5)}
.channel-item a{color:#a8c8e8;font-weight:600;font-size:14px}

.contact-form-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:28px}
.contact-form-card h4{font-size:16px;font-weight:700;margin-bottom:4px}
.contact-form-card>p{font-size:12px;color:rgba(255,255,255,.4);margin-bottom:20px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:10px}
.form-group{margin-bottom:10px}
.form-group label{display:block;font-size:11px;font-weight:600;color:rgba(255,255,255,.5);margin-bottom:4px;text-transform:uppercase;letter-spacing:.5px}
.form-group input,.form-group select,.form-group textarea{
  width:100%;padding:10px 12px;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.15);border-radius:4px;
  color:#fff;font-size:14px;font-family:inherit;transition:.2s
}
.form-group input::placeholder,.form-group textarea::placeholder{color:rgba(255,255,255,.25)}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:rgba(255,255,255,.4);background:rgba(255,255,255,.12)}
.form-group select{appearance:auto}
.form-group select option{color:#333;background:#fff}
.form-group textarea{resize:vertical;min-height:80px}
.form-submit{
  width:100%;padding:12px;background:#d4380d;color:#fff;border:none;
  border-radius:4px;font-size:14px;font-weight:600;cursor:pointer;
  font-family:inherit;transition:.3s;margin-top:4px
}
.form-submit:hover{background:#ff5722}

/* ═══════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════ */
.site-footer{background:#12263a;padding:40px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:3rem;margin-bottom:32px}
.footer-brand p{font-size:13px;color:rgba(255,255,255,.4);line-height:1.7;margin-top:12px;max-width:280px}
.site-footer h5{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;color:rgba(255,255,255,.35);margin-bottom:14px}
.site-footer ul li{margin-bottom:8px}
.site-footer ul a{font-size:13px;color:rgba(255,255,255,.5);transition:.2s}
.site-footer ul a:hover{color:#fff}
.footer-bottom{padding-top:20px;border-top:1px solid rgba(255,255,255,.06);text-align:center;font-size:12px;color:rgba(255,255,255,.25)}

/* ═══════════════════════════════════════════════
   PAGE HERO (shared across sub-pages)
   ═══════════════════════════════════════════════ */
.page-hero{background:linear-gradient(135deg,#1a3a5c 0%,#2e6da4 100%);padding:100px 0 48px;color:#fff}
.page-hero h1{font-size:clamp(1.6rem,4vw,2.4rem);font-weight:800;margin-bottom:8px}
.page-hero p{font-size:15px;color:rgba(255,255,255,.6);max-width:600px}
.page-main{padding:48px 0 64px}

/* About page */
.about-mv-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:48px}
.about-mv-card{background:#f7f8fa;border:1px solid #eee;border-radius:8px;padding:32px}
.about-mv-icon{font-size:32px;margin-bottom:12px}
.about-mv-card h3{font-size:18px;font-weight:700;color:#1a3a5c;margin-bottom:8px}
.about-mv-card p{font-size:14px;color:#666;line-height:1.7}

/* ═══════════════════════════════════════════════
   ARCHIVE / BLOG LISTING
   ═══════════════════════════════════════════════ */
.archive-hero{background:linear-gradient(135deg,#1a3a5c 0%,#2e6da4 100%);padding:100px 0 48px;color:#fff}
.archive-breadcrumb{font-size:13px;color:rgba(255,255,255,.5);margin-bottom:12px}
.archive-breadcrumb a{color:rgba(255,255,255,.7);transition:.2s}
.archive-breadcrumb a:hover{color:#fff}
.archive-hero h1{font-size:clamp(1.6rem,4vw,2.4rem);font-weight:800;margin-bottom:8px}
.archive-hero p{font-size:15px;color:rgba(255,255,255,.6);max-width:600px}

.archive-main{padding:48px 0 64px}
.archive-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.archive-grid .blog-card{display:flex;flex-direction:column}
.archive-grid .blog-thumb{height:200px}
.archive-grid .blog-info{flex:1;display:flex;flex-direction:column;padding:20px}
.archive-grid .blog-info h5{font-size:16px;margin-bottom:8px}
.archive-grid .blog-info p{flex:1;font-size:13px}

.blog-cat{display:inline-block;background:#e8f4fd;color:#2e6da4;font-size:11px;font-weight:600;padding:3px 10px;border-radius:3px;margin-bottom:8px}
.blog-meta{display:flex;justify-content:space-between;align-items:center;margin-top:12px;padding-top:12px;border-top:1px solid #f0f0f0}
.blog-read{font-size:13px;font-weight:600;color:#2e6da4}
.blog-card:hover .blog-read{color:#d4380d}

.archive-pagination{margin-top:48px;text-align:center}
.archive-pagination .nav-links{display:flex;justify-content:center;gap:6px}
.archive-pagination .page-numbers{display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:40px;padding:0 12px;border:1px solid #ddd;border-radius:4px;font-size:14px;font-weight:500;color:#555;transition:.2s}
.archive-pagination .page-numbers.current{background:#1a3a5c;color:#fff;border-color:#1a3a5c}
.archive-pagination .page-numbers:hover:not(.current){border-color:#2e6da4;color:#2e6da4}

.archive-empty{text-align:center;padding:80px 0}
.archive-empty h3{font-size:20px;font-weight:700;color:#1a3a5c;margin-bottom:8px}
.archive-empty p{font-size:15px;color:#888}

/* ═══════════════════════════════════════════════
   LANDING PAGE (Google Ads)
   ═══════════════════════════════════════════════ */
.landing-grid{display:grid;grid-template-columns:1fr 380px;gap:40px;align-items:start}
.landing-content{min-width:0}
.landing-sidebar{position:sticky;top:90px}
.landing-form-card{background:#fff;border:2px solid #1a3a5c;border-radius:10px;padding:28px;box-shadow:0 8px 32px rgba(0,0,0,.08)}
.landing-form-card h3{font-size:18px;font-weight:700;color:#1a3a5c;margin-bottom:4px}
.landing-form-card .form-group{margin-bottom:12px}
.landing-form-card .form-group label{display:block;font-size:12px;font-weight:600;color:#555;margin-bottom:4px}
.landing-form-card .form-group input,.landing-form-card .form-group textarea{width:100%;padding:10px 12px;border:1px solid #ddd;border-radius:6px;font-size:14px;font-family:inherit;transition:.2s}
.landing-form-card .form-group input:focus,.landing-form-card .form-group textarea:focus{outline:none;border-color:#2e6da4;box-shadow:0 0 0 3px rgba(46,109,164,.1)}
.landing-form-card .form-submit{width:100%;padding:14px;background:#d4380d;color:#fff;border:none;border-radius:6px;font-size:16px;font-weight:700;cursor:pointer;font-family:inherit;transition:.3s}
.landing-form-card .form-submit:hover{background:#b8320b;transform:translateY(-1px)}

.landing-quick-contact{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.landing-quick-contact a{display:flex;align-items:center;gap:8px;padding:12px 16px;border-radius:8px;font-weight:600;font-size:15px;text-decoration:none;transition:.2s}
.lqc-phone{background:#fff3f0;color:#d4380d;border:1px solid #ffd6cc}
.lqc-phone:hover{background:#d4380d;color:#fff}
.lqc-zalo{background:#f0f6ff;color:#0068ff;border:1px solid #cce0ff}
.lqc-zalo:hover{background:#0068ff;color:#fff}

.landing-trust{margin-top:20px;background:#f7f8fa;border:1px solid #eee;border-radius:8px;padding:20px}
.trust-item{font-size:13px;color:#555;padding:6px 0;border-bottom:1px solid #f0f0f0}
.trust-item:last-child{border-bottom:none}

@media(max-width:1024px){.landing-grid{grid-template-columns:1fr}}
@media(max-width:768px){.landing-sidebar{position:static;margin-top:32px}}

/* ═══════════════════════════════════════════════
   FLOATING CTA — Phone & Zalo
   ═══════════════════════════════════════════════ */
.floating-cta{position:fixed;bottom:24px;right:24px;z-index:999;display:flex;flex-direction:column;gap:12px;align-items:flex-end}
.floating-cta a{display:flex;align-items:center;gap:10px;padding:12px 20px;border-radius:50px;color:#fff;font-weight:600;font-size:14px;text-decoration:none;box-shadow:0 4px 20px rgba(0,0,0,.25);transition:all .3s;transform:translateX(0)}
.floating-cta a:hover{transform:translateX(-4px);box-shadow:0 6px 28px rgba(0,0,0,.35)}
.floating-cta .cta-phone{background:linear-gradient(135deg,#d4380d,#ff5722)}
.floating-cta .cta-zalo{background:linear-gradient(135deg,#0068ff,#0099ff)}
.floating-cta .cta-icon{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.floating-cta .cta-text{display:flex;flex-direction:column;line-height:1.3}
.floating-cta .cta-text small{font-size:11px;font-weight:400;opacity:.85}
.floating-cta .cta-text strong{font-size:15px}

/* Pulse animation for phone */
.floating-cta .cta-phone .cta-icon{animation:pulse-ring 2s ease infinite}
@keyframes pulse-ring{0%{box-shadow:0 0 0 0 rgba(255,255,255,.4)}70%{box-shadow:0 0 0 12px rgba(255,255,255,0)}100%{box-shadow:0 0 0 0 rgba(255,255,255,0)}}

/* Mobile: smaller, icon only on very small screens */
@media(max-width:480px){
  .floating-cta{bottom:16px;right:16px;gap:10px}
  .floating-cta a{padding:10px 16px;font-size:13px}
  .floating-cta .cta-icon{width:32px;height:32px;font-size:16px}
}

/* ═══════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════ */
@media(max-width:1024px){
  .usp-grid{grid-template-columns:repeat(2,1fr)}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .client-logo-grid{grid-template-columns:repeat(3,1fr)}
  .blog-grid{grid-template-columns:repeat(2,1fr)}
  .archive-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .about-mv-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .topbar{display:none}
  .main-menu{display:none}
  .mobile-toggle{display:block}
  /* Mobile nav fix */
  .nav-inner{height:auto;min-height:60px;padding:10px 0;flex-wrap:wrap}
  .site-logo{flex:1;min-width:0}
  .site-logo img.logo-img,.site-logo .custom-logo{height:36px;max-width:36px}
  .logo-text h1{font-size:16px}
  .logo-text small{font-size:8px;letter-spacing:1px}
  .nav-actions{gap:8px}
  .nav-actions .btn-cta{display:none}
  .lang-switch a{padding:5px 8px;font-size:11px}
  .hero-slider{height:400px}
  .hero-text h1.hero-title,.hero-text h2{font-size:1.6rem}
  .usp-grid{grid-template-columns:1fr}
  .services-grid{grid-template-columns:1fr}
  .client-logo-grid{grid-template-columns:repeat(2,1fr)}
  .blog-grid{grid-template-columns:1fr}
  .archive-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .hero-buttons{flex-direction:column}
  .hero-buttons a{text-align:center}
  .stats-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .logo-grid{justify-content:center}
  .about-mv-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
  .nav-inner{padding:8px 0}
  .site-logo img.logo-img,.site-logo .custom-logo{height:32px;max-width:32px}
  .logo-text h1{font-size:14px}
  .logo-text small{display:none}
  .lang-switch a{padding:4px 6px;font-size:10px}
  .mobile-toggle{font-size:20px}
  .hero-slider{height:320px}
  .hero-text h1.hero-title,.hero-text h2{font-size:1.3rem}
  .hero-desc{font-size:13px}
  .hero-badge{font-size:10px;padding:4px 12px}
  .hero-buttons a{padding:10px 20px;font-size:13px}
  .section-usp h3,.section-services .section-top h3,.section-blog .section-top h3{font-size:18px}
  .page-hero h1,.archive-hero h1{font-size:1.3rem}
  .page-hero{padding:80px 0 32px}
  .archive-hero{padding:80px 0 32px}
}


/* ===== MEGA DROPDOWN MENU ===== */
.has-dropdown{position:relative}
.has-dropdown>.mega-dropdown{
  display:none;position:absolute;top:100%;left:50%;transform:translateX(-50%);
  background:#fff;box-shadow:0 8px 32px rgba(0,0,0,.15);border-radius:0 0 12px 12px;
  padding:24px 28px;z-index:1000;min-width:680px;
  border-top:3px solid #2e6da4;
  gap:24px;
}
.has-dropdown:hover>.mega-dropdown{display:flex;flex-wrap:wrap}
.mega-col{flex:1;min-width:180px}
.mega-col h5{font-size:13px;font-weight:700;color:#1a3a5c;text-transform:uppercase;letter-spacing:.5px;margin:0 0 10px;padding-bottom:6px;border-bottom:2px solid #e8eef4}
.mega-col ul{list-style:none;padding:0;margin:0}
.mega-col ul li a{display:block;padding:5px 0;font-size:13px;color:#555;transition:color .2s,padding-left .2s}
.mega-col ul li a:hover{color:#2e6da4;padding-left:6px}
.mega-cta{width:100%;text-align:center;margin-top:16px;padding-top:12px;border-top:1px solid #eee}
.mega-cta a{font-size:14px;font-weight:600;color:#2e6da4}
.dd-arrow{font-size:10px;margin-left:2px;opacity:.6}

/* ===== PRODUCTS GRID (page san-pham-dich-vu) ===== */
.products-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px;margin-bottom:48px}
.product-group{background:#fff;border-radius:12px;box-shadow:0 2px 12px rgba(0,0,0,.06);padding:24px;transition:box-shadow .3s}
.product-group:hover{box-shadow:0 4px 20px rgba(0,0,0,.12)}
.product-group-header{display:flex;align-items:center;gap:12px;padding-left:12px;margin-bottom:16px}
.product-group-header .pg-icon{font-size:28px}
.product-group-header h3{margin:0;font-size:1.1em}
.product-group-header h3 a{color:#1a3a5c;text-decoration:none}
.product-group-header h3 a:hover{color:#2e6da4}
.product-list{list-style:none;padding:0;margin:0 0 16px}
.product-list li{border-bottom:1px solid #f0f0f0}
.product-list li:last-child{border-bottom:none}
.product-list li a{display:flex;justify-content:space-between;align-items:center;padding:10px 8px;color:#444;font-size:14px;text-decoration:none;transition:all .2s}
.product-list li a:hover{background:#f7fafd;color:#2e6da4;padding-left:14px}
.product-list li a .arrow{color:#ccc;transition:color .2s}
.product-list li a:hover .arrow{color:#2e6da4}
.product-group-link{display:block;text-align:center;padding:10px;background:#f7fafd;border-radius:8px;color:#2e6da4;font-size:13px;font-weight:600;text-decoration:none;transition:background .2s}
.product-group-link:hover{background:#e8f0f8}

/* Mobile: dropdown as accordion */
@media(max-width:768px){
  .has-dropdown>.mega-dropdown{position:static;transform:none;min-width:100%;box-shadow:none;border-top:1px solid #eee;border-radius:0;flex-direction:column;padding:12px 16px}
  .has-dropdown.open>.mega-dropdown{display:flex}
  .mega-col{min-width:100%}
  .products-grid{grid-template-columns:1fr}
}