/*
Theme Name: Dongwon Vina Logistics
Theme URI: https://dwvina.com
Author: DonaWeb.vn
Description: Theme WordPress chuyên biệt cho công ty Logistics DONGWON VINA. Màu chủ đạo #113981, font Inter, kèm ACF cho trang chủ và Theme Settings cho logo/footer.
Version: 1.0.0
Requires PHP: 7.4
Text Domain: dongwon-vina
*/

:root{
  --color-primary: #113981;
  --color-primary-dark: #0c2a5e;
  --color-primary-light: #1f52ac;
  --color-white: #ffffff;
  --color-bg-soft: #f4f7fb;
  --color-text: #1c2733;
  --color-text-muted: #5b6b80;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 10px;
  --container: 1200px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth; overflow-x:hidden; width:100%;}
body{
  margin:0;
  font-family:var(--font-main);
  color:var(--color-text);
  background:var(--color-white);
  line-height:1.6;
  overflow-x:hidden;
}
body.dwv-menu-open{overflow:hidden;}
img{max-width:100%; display:block;}
a{color:inherit; text-decoration:none;}
ul{margin:0; padding:0; list-style:none;}
.container{max-width:var(--container); margin:0 auto; padding:0 24px;}
.container--wide-pad{padding:0 56px;}
@media (max-width: 960px){
  .container--wide-pad{padding:0 32px;}
}
@media (max-width: 600px){
  .container--wide-pad{padding:0 20px;}
}
.section{padding:80px 0;}
.section--soft{background:var(--color-bg-soft);}
.eyebrow{
  display:inline-block;
  color:var(--color-primary);
  font-weight:600;
  font-size:13px;
  letter-spacing:.08em;
  text-transform:uppercase;
  margin-bottom:12px;
}
h1,h2,h3,h4{font-family:var(--font-main); color:var(--color-primary-dark); margin:0 0 16px;}
h2{font-size:34px; font-weight:700;}
p{color:var(--color-text-muted); margin:0 0 16px;}
.btn{
  display:inline-flex; align-items:center; gap:8px;
  background:var(--color-primary);
  color:var(--color-white);
  padding:14px 28px;
  border-radius:999px;
  font-weight:600;
  font-size:15px;
  transition:.25s ease;
  border:2px solid var(--color-primary);
}
.btn:hover{background:var(--color-primary-dark); border-color:var(--color-primary-dark);}
.btn--outline{background:transparent; color:var(--color-white); border-color:var(--color-white);}
.btn--outline:hover{background:var(--color-white); color:var(--color-primary);}

/* ============ Header ============ */
.site-header{
  position:sticky; top:0; z-index:100;
  background:var(--color-white);
  border-bottom:1px solid #e7ecf3;
}
.site-header__inner{display:flex; align-items:center; justify-content:space-between; padding:16px 24px;}
.site-logo img{height:80px; width:auto;}
.site-logo{font-weight:800; font-size:20px; color:var(--color-primary);}

/* Menu chính (chữ in hoa, gạch chân trượt khi hover) */
.main-nav > ul{display:flex; gap:32px;}
.main-nav li{position:relative;}
.main-nav a{
  position:relative;
  display:inline-block;
  font-weight:600;
  font-size:14px;
  letter-spacing:.03em;
  text-transform:uppercase;
  color:var(--color-text);
  padding:6px 0;
  transition:color .25s ease;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0; bottom:0;
  width:0;
  height:2px;
  background:var(--color-primary);
  border-radius:2px;
  transition:width .3s ease;
}
.main-nav a:hover,
.main-nav a:focus-visible{color:var(--color-primary);}
.main-nav a:hover::after,
.main-nav a:focus-visible::after{width:100%;}
.main-nav a.current-menu-item,
.main-nav li.current-menu-item > a{color:var(--color-primary);}
.main-nav li.current-menu-item > a::after{width:100%;}

/* Menu con (dropdown) - desktop: hiện khi hover */
.main-nav li.menu-item-has-children > a{padding-right:16px;}
.main-nav li.menu-item-has-children > a::after{
  content:"\f107";
  font-family:"Font Awesome 6 Free"; font-weight:900;
  font-size:10px;
  margin-left:6px;
  vertical-align:middle;
  position:static;
  width:auto; height:auto;
  background:none;
  display:inline-block;
}
.main-nav .sub-menu{
  position:absolute;
  top:100%; left:0;
  min-width:260px;
  background:var(--color-white);
  border-radius:10px;
  box-shadow:0 20px 40px rgba(17,57,129,.16);
  padding:10px 0;
  margin-top:14px;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .2s ease, transform .2s ease, visibility .2s;
  z-index:200;
}
.main-nav li.menu-item-has-children:hover > .sub-menu,
.main-nav li.menu-item-has-children:focus-within > .sub-menu{
  opacity:1; visibility:visible; transform:translateY(0);
}
.main-nav .sub-menu li{border-bottom:none;}
.main-nav .sub-menu a{
  display:block;
  padding:11px 20px;
  font-size:13.5px;
  font-weight:500;
  text-transform:none;
  letter-spacing:0;
  color:var(--color-text);
  white-space:normal;
}
.main-nav .sub-menu a::after{display:none;}
.main-nav .sub-menu a:hover{background:var(--color-bg-soft); color:var(--color-primary);}

/* Nút mở menu con trên mobile (ẩn trên desktop) */
.submenu-toggle{display:none;}

/* Nút hamburger -> chuyển thành X khi mở */
.menu-toggle{
  display:none;
  position:relative;
  width:32px; height:32px;
  background:none; border:none; cursor:pointer;
  padding:0;
  flex-shrink:0;
}
.menu-toggle__icon,
.menu-toggle__icon::before,
.menu-toggle__icon::after{
  position:absolute;
  left:4px; right:4px;
  height:2px;
  background:var(--color-primary);
  border-radius:2px;
  transition:transform .25s ease, opacity .25s ease, top .25s ease;
}
.menu-toggle__icon{top:15px;}
.menu-toggle__icon::before{content:""; top:-9px;}
.menu-toggle__icon::after{content:""; top:9px;}
.menu-toggle.is-active .menu-toggle__icon{background:transparent;}
.menu-toggle.is-active .menu-toggle__icon::before{top:0; transform:rotate(45deg);}
.menu-toggle.is-active .menu-toggle__icon::after{top:0; transform:rotate(-45deg);}

/* Nút Hotline trên header */
.btn-hotline{
  position:relative;
  gap:8px;
  animation:dwv-pulse 2.2s ease-in-out infinite;
}
.btn-hotline__icon{font-size:16px; line-height:1; display:inline-block;}
.btn-hotline__text{white-space:nowrap;}
@keyframes dwv-pulse{
  0%   { box-shadow:0 0 0 0 rgba(17,57,129,.45); }
  70%  { box-shadow:0 0 0 10px rgba(17,57,129,0); }
  100% { box-shadow:0 0 0 0 rgba(17,57,129,0); }
}

/* ============ Hero ============ */
.hero{
  position:relative;
  color:var(--color-white);
  overflow:hidden;
  background-color:var(--color-primary-dark);
  background-size:cover;
  background-position:center;
}
.hero__overlay{
  position:absolute; inset:0;
  background:linear-gradient(100deg,
    rgba(8,20,48,.88) 0%,
    rgba(12,32,78,.72) 35%,
    rgba(17,57,129,.35) 65%,
    rgba(17,57,129,.15) 100%);
}
.hero__inner{
  position:relative;
  z-index:1;
  max-width:var(--container); margin:0 auto;
  padding:130px 24px 150px;
}
.hero__content{max-width:640px;}
.hero__eyebrow{color:#a9c1ee; font-weight:600; letter-spacing:.1em; text-transform:uppercase; font-size:13px; margin-bottom:18px;}
.hero h1{
  color:var(--color-white);
  font-size:60px;
  font-weight:800;
  letter-spacing:-0.02em;
  margin-bottom:20px;
  text-shadow:0 4px 24px rgba(0,0,0,.25);
}
.hero p{color:#e4eaf6; font-size:18px; max-width:520px; text-shadow:0 2px 12px rgba(0,0,0,.2); text-align:justify;}
.hero__cta{display:flex; gap:16px; margin-top:32px; flex-wrap:wrap;}
.hero__stats{display:flex; gap:40px; margin-top:64px; flex-wrap:wrap;}
.hero__stat-number{font-size:30px; font-weight:800; color:var(--color-white);}
.hero__stat-label{font-size:13px; color:#b7c8e8;}

/* ============ About ============ */
.about{display:grid; grid-template-columns:.9fr 1.1fr; gap:56px; align-items:center;}
.about__media{border-radius:var(--radius); overflow:hidden;}
.about__media img{width:100%; object-fit:cover;}
.about__list{display:grid; gap:14px; margin-top:24px;}
.about__list li{display:flex; gap:10px; align-items:flex-start; color:var(--color-text);}
.about__list li::before{content:"✓"; color:var(--color-primary); font-weight:800;}

/* ============ Why choose us ============ */
.why-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:24px; margin-top:40px;}
.why-card{
  background:var(--color-white);
  border:1px solid #e7ecf3;
  border-radius:var(--radius);
  padding:32px 24px;
  transition:.25s ease;
}
.why-card:hover{border-color:var(--color-primary); box-shadow:0 12px 30px rgba(17,57,129,.1); transform:translateY(-4px);}
.why-card__icon{width:52px; height:52px; border-radius:12px; background:var(--color-bg-soft); display:flex; align-items:center; justify-content:center; margin-bottom:18px; font-size:24px; color:var(--color-primary);}
.why-card h3{font-size:18px; margin-bottom:8px;}
.why-card p{font-size:14px; margin:0;}

/* ============ Services ============ */
.services-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:24px; margin-top:40px;}
.service-card{
  position:relative;
  display:block;
  height:clamp(260px, 30vw, 380px);
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--color-bg-soft);
}
.service-card__media{position:absolute; inset:0;}
.service-card__media img{
  width:100%; height:100%; object-fit:cover;
  transition:transform .4s ease;
}
.service-card:hover .service-card__media img{transform:scale(1.06);}
.service-card__overlay{
  position:absolute; inset:0;
  background:linear-gradient(180deg,
    rgba(8,20,48,0) 30%,
    rgba(8,20,48,.55) 62%,
    rgba(8,20,48,.92) 100%);
  transition:background .3s ease;
}
.service-card:hover .service-card__overlay{
  background:linear-gradient(180deg,
    rgba(8,20,48,.1) 20%,
    rgba(8,20,48,.65) 60%,
    rgba(8,20,48,.95) 100%);
}
.service-card__content{
  position:absolute; left:0; right:0; bottom:0;
  padding:24px;
  z-index:1;
}
.service-card h3{
  color:var(--color-white);
  text-transform:uppercase;
  font-weight:800;
  font-size:16px;
  line-height:1.3;
  letter-spacing:-0.01em;
  margin-bottom:8px;
}
.service-card p{
  color:#dce4f2;
  font-size:13.5px;
  margin:0;
  line-height:1.55;
}

/* ============ Blog ============ */
.blog-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:24px; margin-top:40px;}
.blog-card{border-radius:var(--radius); overflow:hidden; border:1px solid #e7ecf3;}
.blog-card__media{aspect-ratio:16/9; overflow:hidden; background:var(--color-bg-soft);}
.blog-card__media img{width:100%; height:100%; object-fit:cover;}
.blog-card__body{padding:20px; background:#fff;}
.blog-card__date{font-size:12px; color:var(--color-primary); font-weight:600; text-transform:uppercase; letter-spacing:.05em;}
.blog-card h3{font-size:17px; margin:8px 0;}
.blog-card p{font-size:14px;}

.section-head{display:flex; align-items:flex-end; justify-content:space-between; gap:24px; flex-wrap:wrap;}
.section-head p{max-width:560px; margin:0;}

/* ============ Footer ============ */
.site-footer{background:var(--color-primary-dark); color:#dbe4f5; padding-top:64px;}
.footer-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:40px; padding-bottom:40px;}
.footer-logo img{height:88px; margin-bottom:16px;}
.footer-logo{font-size:20px; font-weight:800; color:var(--color-white); margin-bottom:16px;}
.footer-col h4{color:var(--color-white); font-size:15px; margin-bottom:18px;}
.footer-col li{margin-bottom:10px; font-size:14px; color:#c3d1ea;}
.footer-col a:hover{color:var(--color-white);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12); padding:20px 0; text-align:center; font-size:13px; color:#9fb2d6;}
.footer-social{display:flex; gap:12px; margin-top:20px;}
.footer-social a{
  display:flex; align-items:center; justify-content:center;
  width:38px; height:38px;
  border-radius:50%;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.2);
  color:var(--color-white);
  font-size:15px;
  transition:.2s ease;
}
.footer-social a:hover{background:var(--color-white); color:var(--color-primary-dark); border-color:var(--color-white);}

/* ============ Page hero ============ */
.page-hero{
  position:relative;
  background:linear-gradient(120deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color:var(--color-white);
  padding:100px 24px 90px;
  text-align:center;
}
.page-hero__bg{position:absolute; inset:0; opacity:.18; background-size:cover; background-position:center;}
.page-hero__inner{position:relative; max-width:720px; margin:0 auto;}
.page-hero h1{color:var(--color-white); font-size:44px; margin-bottom:12px;}
.page-hero p{color:#d8e2f5; font-size:17px; margin:0;}
.breadcrumb{font-size:13px; color:#a9c1ee; margin-bottom:18px;}
.breadcrumb a{color:#c3d5f2;}
.breadcrumb a:hover{color:var(--color-white);}
.breadcrumb--light{color:var(--color-text-muted);}
.breadcrumb--light a{color:var(--color-primary); font-weight:600;}
.breadcrumb--light a:hover{color:var(--color-primary-dark); text-decoration:underline;}

.mission-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:24px; margin-top:40px;}
.mission-card{background:var(--color-white); border:1px solid #e7ecf3; border-radius:var(--radius); padding:32px 24px; text-align:center;}
.mission-card__icon{font-size:34px; margin-bottom:14px;}
.mission-card h3{font-size:18px; margin-bottom:8px;}
.mission-card p{font-size:14px; margin:0;}

.timeline{position:relative; margin-top:48px; padding-left:28px; border-left:2px solid #dbe4f5;}
.timeline-item{position:relative; padding-bottom:32px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:""; position:absolute; left:-34px; top:4px;
  width:12px; height:12px; border-radius:50%;
  background:var(--color-primary); border:3px solid #dbe4f5;
}
.timeline-item__year{font-weight:800; color:var(--color-primary); font-size:18px;}
.timeline-item__desc{margin-top:4px; color:var(--color-text); font-size:15px;}

.stats-band{background:var(--color-primary); color:var(--color-white);}
.stats-band .stats-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center;}
.stats-band .stat-number{font-size:38px; font-weight:800;}
.stats-band .stat-label{font-size:14px; color:#c3d5f2; margin-top:4px;}

.certs-grid{display:grid; grid-template-columns:repeat(5,1fr); gap:24px; align-items:center; margin-top:40px;}
.certs-grid img{filter:grayscale(1); opacity:.7; transition:.25s ease;}
.certs-grid img:hover{filter:none; opacity:1;}

.cta-band{
  background:var(--color-bg-soft);
  border-radius:var(--radius);
  padding:56px 40px;
  text-align:center;
}
.cta-band h2{margin-bottom:10px;}
.cta-band p{max-width:520px; margin:0 auto 24px;}

/* ============ Contact page ============ */
.contact-grid{display:grid; grid-template-columns:.85fr 1.15fr; gap:48px; align-items:start;}
.contact-info{
  background:var(--color-primary);
  color:var(--color-white);
  border-radius:var(--radius);
  padding:40px 32px;
}
.contact-info h3{color:var(--color-white); font-size:20px; margin-bottom:20px;}
.contact-info ul{display:grid; gap:16px;}
.contact-info li{display:flex; gap:12px; align-items:flex-start; font-size:14.5px; color:#dbe4f5;}
.contact-info li a{color:#fff; font-weight:600;}
.contact-info li a:hover{text-decoration:underline;}

.contact-form{
  background:var(--color-white);
  border:1px solid #e7ecf3;
  border-radius:var(--radius);
  padding:36px 32px;
}
.form-row{margin-bottom:18px; display:flex; flex-direction:column; gap:6px;}
.form-row label{font-weight:600; font-size:14px; color:var(--color-text);}
.form-row label span{color:#c0392b;}
.form-row input,
.form-row select,
.form-row textarea{
  border:1px solid #d7dfea;
  border-radius:8px;
  padding:12px 14px;
  font-family:var(--font-main);
  font-size:14.5px;
  color:var(--color-text);
  background:var(--color-white);
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus{
  outline:none;
  border-color:var(--color-primary);
  box-shadow:0 0 0 3px rgba(17,57,129,.12);
}
.form-row-group{display:grid; grid-template-columns:1fr 1fr; gap:18px;}
.form-row-group .form-row{margin-bottom:18px;}
@media (max-width: 480px){
  .form-row-group{grid-template-columns:1fr;}
}
.contact-form .btn{border:none; cursor:pointer; width:100%; justify-content:center; margin-top:6px;}
.form-notice{padding:12px 16px; border-radius:8px; font-size:14px; margin-bottom:20px;}
.form-notice--success{background:#e6f4ea; color:#1e7e34;}
.form-notice--error{background:#fde8e8; color:#c0392b;}

.map-wrap{border-radius:var(--radius); overflow:hidden; margin-top:56px; border:1px solid #e7ecf3;}
.map-wrap iframe{width:100%; height:420px; border:0; display:block;}

/* ============ Single bài viết: layout 2 cột + sidebar ============ */
.single-layout{
  display:grid;
  grid-template-columns:1fr 320px;
  gap:48px;
  align-items:start;
}
.single-main{min-width:0;}
.single-title{font-size:36px; margin-top:8px;}
.single-thumb{border-radius:var(--radius); overflow:hidden; margin:24px 0;}
.single-thumb img{width:100%; height:auto;}

.entry-content{max-width:100%; overflow-wrap:break-word; word-break:break-word;}
.entry-content img,
.entry-content iframe,
.entry-content video{max-width:100%; height:auto; border-radius:8px;}
.entry-content table{display:block; max-width:100%; overflow-x:auto; border-collapse:collapse;}
.entry-content pre{max-width:100%; overflow-x:auto; white-space:pre-wrap;}
.entry-content p{color:var(--color-text);}

.single-sidebar{display:flex; flex-direction:column; gap:28px; position:sticky; top:96px;}
.widget{
  background:var(--color-white);
  border:1px solid #e7ecf3;
  border-radius:var(--radius);
  padding:24px;
}
.widget h4{font-size:16px; margin-bottom:16px; color:var(--color-primary-dark);}

.search-form{display:flex; gap:8px;}
.search-form input{
  flex:1;
  border:1px solid #d7dfea;
  border-radius:8px;
  padding:10px 12px;
  font-family:var(--font-main);
  font-size:14px;
  min-width:0;
}
.search-form input:focus{outline:none; border-color:var(--color-primary);}
.search-form button{
  border:none;
  background:var(--color-primary);
  color:var(--color-white);
  border-radius:8px;
  width:42px;
  cursor:pointer;
  flex-shrink:0;
}
.search-form button:hover{background:var(--color-primary-dark);}

.sidebar-list li{border-bottom:1px solid #eef2f7;}
.sidebar-list li:last-child{border-bottom:none;}
.sidebar-list a{
  display:flex; align-items:center; gap:10px;
  padding:12px 2px;
  font-size:14.5px;
  font-weight:600;
  color:var(--color-text);
}
.sidebar-list a:hover{color:var(--color-primary);}
.sidebar-list a i{color:var(--color-primary); width:18px; text-align:center;}
.sidebar-list__icon{
  flex-shrink:0;
  width:30px; height:30px;
  border-radius:50%;
  background:var(--color-bg-soft);
  display:flex; align-items:center; justify-content:center;
  transition:background .2s ease, color .2s ease;
}
.sidebar-list__icon i{width:auto; font-size:13px; color:var(--color-primary);}
.sidebar-list a:hover .sidebar-list__icon{background:var(--color-primary);}
.sidebar-list a:hover .sidebar-list__icon i{color:var(--color-white);}

.sidebar-post{align-items:flex-start !important; gap:12px !important;}
.sidebar-post__thumb{
  flex-shrink:0; width:60px; height:60px;
  border-radius:8px; overflow:hidden; display:block;
}
.sidebar-post__thumb img{width:100%; height:100%; object-fit:cover;}
.sidebar-post__body{display:flex; flex-direction:column; gap:4px;}
.sidebar-post__title{font-weight:600; font-size:13.5px; line-height:1.4;}
.sidebar-post__date{font-size:12px; font-weight:400; color:var(--color-text-muted);}

.related-posts{margin-top:72px;}

/* ============ CTA liên hệ cuối trang (form + ảnh minh hoạ) ============ */
.cta-contact{
  background:linear-gradient(120deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  overflow:hidden;
  padding-bottom:0;
}
.cta-contact__grid{
  display:grid;
  grid-template-columns:1fr .85fr;
  gap:40px;
  align-items:stretch;
}
.cta-contact__form{padding-bottom:80px;}
.cta-contact__title{
  color:var(--color-white);
  font-size:32px;
  font-weight:800;
  margin-bottom:28px;
}

.cta-contact .contact-form{
  background:transparent;
  border:none;
  padding:0;
}
.cta-contact .form-row label{color:#e4eaf6;}
.cta-contact .form-row label span{color:#ffb4a8;}
.cta-contact .form-row input,
.cta-contact .form-row select,
.cta-contact .form-row textarea{
  background:var(--color-white);
  border:none;
}
.cta-contact .contact-form .btn{
  background:var(--color-white);
  color:var(--color-primary);
  border-color:var(--color-white);
  width:auto;
  padding:14px 32px;
}
.cta-contact .contact-form .btn:hover{background:#eef2fb;}
.cta-contact .form-notice--success{background:rgba(255,255,255,.15); color:#fff;}
.cta-contact .form-notice--error{background:rgba(255,180,168,.2); color:#ffe1db;}

.cta-contact__media{position:relative; height:100%; min-height:340px;}
.cta-contact__plane{
  position:absolute;
  left:50%; bottom:0;
  transform:translate(-50%, 60px);
  width:100%;
  height:100%;
  max-width:none;
  object-fit:contain;
  object-position:bottom center;
  opacity:0;
  transition:opacity .9s ease, transform .9s ease;
}
.cta-contact__plane.is-visible{
  opacity:1;
  transform:translate(-50%, 0);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1080px){
  .single-layout{grid-template-columns:1fr;}
  .single-sidebar{position:static;}
}

@media (max-width: 960px){
  /* Hero */
  .hero__inner{padding:90px 24px 100px;}
  .hero h1{font-size:38px;}
  .hero__content{max-width:100%;}
  .hero p{
    display:-webkit-box;
    -webkit-line-clamp:5;
    -webkit-box-orient:vertical;
    overflow:hidden;
    font-size:14px;
  }

  /* Grids */
  .contact-grid{grid-template-columns:1fr;}
  .mission-grid{grid-template-columns:1fr;}
  .stats-band .stats-grid{grid-template-columns:repeat(2,1fr);}
  .certs-grid{grid-template-columns:repeat(3,1fr);}
  .page-hero h1{font-size:32px;}
  .about{grid-template-columns:1fr;}
  .why-grid{grid-template-columns:repeat(2,1fr);}
  .services-grid{grid-template-columns:repeat(2,1fr);}
  .blog-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}

  /* CTA liên hệ: ẩn ảnh máy bay trên mobile, thu gọn tiêu đề */
  .cta-contact__grid{grid-template-columns:1fr;}
  .cta-contact__media{display:none;}
  .cta-contact__title{font-size:22px;}

  /* Menu mobile dạng dropdown + accordion menu con */
  .site-header__inner{position:relative;}
  .main-nav{
    position:absolute;
    top:100%; left:0; right:0;
    background:var(--color-white);
    border-top:1px solid #e7ecf3;
    box-shadow:0 16px 32px rgba(17,57,129,.12);
    max-height:0;
    overflow:hidden;
    opacity:0;
    visibility:hidden;
    transition:max-height .3s ease, opacity .25s ease;
  }
  .main-nav.is-open{max-height:80vh; opacity:1; visibility:visible; overflow-y:auto;}
  .main-nav ul{flex-direction:column; gap:0; padding:8px 24px 20px;}
  .main-nav li{border-bottom:1px solid #eef2f7;}
  .main-nav li:last-child{border-bottom:none;}
  .main-nav a{display:block; padding:14px 4px;}
  .main-nav a::after{display:none;}
  .main-nav li.menu-item-has-children > a::after{display:none;}
  .main-nav li.menu-item-has-children{position:relative;}
  .main-nav li.menu-item-has-children > a{padding-right:44px;}
  .main-nav .sub-menu{
    position:static;
    background:var(--color-bg-soft);
    border-radius:0;
    box-shadow:none;
    margin:0;
    padding:0;
    opacity:1; visibility:visible; transform:none;
    max-height:0;
    overflow:hidden;
    transition:max-height .3s ease;
  }
  .main-nav li.submenu-open > .sub-menu{max-height:600px;}
  .main-nav .sub-menu li{border-bottom:1px solid #e4eaf3;}
  .main-nav .sub-menu a{padding:12px 24px 12px 36px; font-size:13.5px;}
  .submenu-toggle{
    display:flex; align-items:center; justify-content:center;
    position:absolute; right:0; top:0;
    width:44px; height:44px;
    background:none; border:none; color:var(--color-primary);
    font-size:13px; cursor:pointer;
  }
  .submenu-toggle i{transition:transform .25s ease;}
  .main-nav li.submenu-open > .submenu-toggle i{transform:rotate(180deg);}
  .menu-toggle{display:block;}

  /* Nút hotline chỉ hiện icon trên mobile */
  .btn-hotline{padding:12px; border-radius:50%;}
  .btn-hotline__text{display:none;}
  .btn-hotline__icon{font-size:18px;}
}

@media (max-width: 600px){
  .why-grid, .services-grid, .blog-grid, .footer-grid{grid-template-columns:1fr;}
  h2{font-size:26px;}
  .section{padding:48px 0;}
  .container{padding:0 18px;}
  .section-head{gap:12px;}
}