/*
Theme Name: Lê Thanh Cần
Theme URI: https://lethanhcan.com/
Description: Child theme của Twenty Seventeen — giao diện riêng cho lethanhcan.com. Học – Thực hành – Chia sẻ về AI, Marketing và Kinh doanh online.
Author: Lê Thanh Cần
Author URI: https://lethanhcan.com/
Template: twentyseventeen
Version: 1.4.0
Text Domain: lethanhcan
Tags: blog, one-column, custom-menu, featured-images
*/

/* ============================================================
   1. BIẾN THIẾT KẾ
   ============================================================ */
:root{
  --ink:#16283D;
  --ink-soft:#4A5C6B;
  --paper:#FAF6EC;
  --paper-2:#F2ECDD;
  --river:#1F6F78;
  --river-dark:#144D54;
  --gold:#D9A441;
  --gold-dark:#B3822F;
  --clay:#B5533F;
  --line:rgba(22,40,61,0.12);
  --radius:14px;
  --wrap:1120px;
}

/* ============================================================
   2. NỀN TẢNG
   ============================================================ */
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Be Vietnam Pro', sans-serif;
  background:var(--paper);
  color:var(--ink);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:'Fraunces', serif;
  font-weight:500;
  line-height:1.15;
  margin:0 0 .5em;
  color:var(--ink);
}
p{margin:0 0 1em;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;height:auto;display:block;}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px;}
section{padding:88px 0;}

/* Chỉ hiện cho trình đọc màn hình */
.screen-reader-text{
  border:0;clip:rect(1px,1px,1px,1px);clip-path:inset(50%);
  height:1px;width:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;word-wrap:normal;
}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:100000;
  background:var(--ink);color:#fff;padding:12px 20px;
}
.skip-link:focus{left:6px;top:6px;}

/* ============================================================
   3. THÀNH PHẦN DÙNG CHUNG
   ============================================================ */
.eyebrow{
  font-family:'Be Vietnam Pro',sans-serif;
  font-size:13px;
  font-weight:600;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--river-dark);
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:22px;height:1px;background:var(--gold-dark);display:inline-block;
}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 26px;
  border-radius:999px;
  font-weight:600;
  font-size:15px;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .15s ease, background .15s ease, color .15s ease;
}
.btn:hover{transform:translateY(-2px);}
.btn-gold{background:var(--gold);color:var(--river-dark);}
.btn-gold:hover{background:var(--gold-dark);color:#fff;}
.btn-outline{border-color:rgba(22,40,61,.35);color:var(--ink);}
.btn-outline:hover{background:rgba(22,40,61,.08);}
.btn-outline-dark{border-color:var(--ink);color:var(--ink);}
.btn-outline-dark:hover{background:var(--ink);color:#fff;}
.section-head{max-width:640px;margin-bottom:44px;}
.section-head h2{font-size:32px;}
.section-head p{color:var(--ink-soft);font-size:16px;}

/* ============================================================
   4. THANH TRÊN CÙNG + HEADER
   ============================================================ */
.topbar{
  background:var(--river-dark);
  color:#dff1ee;
  font-size:13px;
}
.topbar .wrap{
  display:flex;justify-content:space-between;align-items:center;
  padding:9px 24px;gap:16px;flex-wrap:wrap;
}
.topbar a{opacity:.92;}
.topbar a:hover{opacity:1;text-decoration:underline;}
.topbar .tagline{opacity:.85;}

.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(250,246,236,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.admin-bar .site-header{top:32px;}
@media screen and (max-width:782px){
  .admin-bar .site-header{top:46px;}
}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 24px;
}
.logo{display:flex;align-items:center;gap:12px;}
.logo-mark{
  width:42px;height:42px;border-radius:50%;
  background:linear-gradient(160deg,var(--river),var(--river-dark));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-family:'Fraunces',serif;font-size:18px;font-weight:600;
  flex-shrink:0;overflow:hidden;
}
.logo-mark img{width:100%;height:100%;object-fit:cover;}
.logo-text{display:flex;flex-direction:column;}
.logo-text .name{font-family:'Fraunces',serif;font-size:19px;font-weight:600;letter-spacing:.01em;line-height:1.2;}
.logo-text .sub{font-size:12px;color:var(--ink-soft);line-height:1.3;}

.main-nav ul{list-style:none;display:flex;gap:34px;margin:0;padding:0;}
.main-nav li{position:relative;}
.main-nav a{font-size:15px;font-weight:500;color:var(--ink-soft);padding:4px 0;display:block;}
.main-nav a:hover{color:var(--ink);}
.main-nav .current-menu-item > a,
.main-nav .current_page_item > a,
.main-nav a.active{color:var(--river-dark);}

/* Menu con */
.main-nav .sub-menu{
  display:none;position:absolute;top:100%;left:0;
  background:var(--paper);border:1px solid var(--line);border-radius:12px;
  padding:10px 0;min-width:210px;flex-direction:column;gap:0;
  box-shadow:0 18px 40px -20px rgba(22,40,61,.28);
}
.main-nav li:hover > .sub-menu,
.main-nav li:focus-within > .sub-menu{display:flex;}
.main-nav .sub-menu a{padding:8px 18px;font-size:14.5px;}
.main-nav .sub-menu a:hover{background:var(--paper-2);}

.menu-toggle{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:var(--ink);line-height:1;padding:4px 8px;}

/* ============================================================
   5. HERO (trang chủ)
   ============================================================ */
.hero{
  background:radial-gradient(120% 140% at 82% -10%, #E4F1EC 0%, #FBF6E9 55%, #FCEEDB 100%);
  color:var(--ink);
  padding:100px 0 0;
  position:relative;
  overflow:hidden;
}
.hero .wrap{
  display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;
  padding-bottom:70px;
}
.hero h1{color:var(--ink);font-size:44px;max-width:640px;}
.hero h1 em{font-style:italic;color:var(--river-dark);}
.hero p.lead{font-size:17px;color:var(--ink-soft);max-width:520px;}
.hero .cta-row{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap;}
.hero-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:20px;
  padding:30px;
  box-shadow:0 18px 40px -20px rgba(22,40,61,.18);
}
.hero-card .quote-mark{font-family:'Fraunces',serif;font-size:52px;color:var(--gold-dark);line-height:.5;display:block;margin-bottom:10px;}
.hero-card p{color:var(--ink-soft);font-size:15px;}
.hero-card .who{margin-top:16px;font-size:13px;color:var(--river-dark);font-weight:600;letter-spacing:.05em;text-transform:uppercase;}

.stats-strip{
  background:rgba(22,40,61,.05);
  border-top:1px solid var(--line);
}
.stats-strip .wrap{
  display:grid;grid-template-columns:repeat(4,1fr);
  padding:26px 24px;gap:20px;
}
/* Khi ẩn bớt ô, lưới tự co lại cho cân đối */
.stats-strip--3{grid-template-columns:repeat(3,1fr);}
.stats-strip--2{grid-template-columns:repeat(2,1fr);}
.stats-strip--1{grid-template-columns:1fr;}
.stat b{
  font-family:'Fraunces',serif;font-size:26px;color:var(--river-dark);display:block;font-weight:600;
}
.stat span{font-size:13px;color:var(--ink-soft);}

.wave{display:block;width:100%;height:70px;margin-bottom:-6px;}

/* ============================================================
   6. GIỚI THIỆU
   ============================================================ */
.about .wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:start;}
.about-figure{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:20px;
  padding:32px;
  position:relative;
}
.about-figure .tag{
  position:absolute;top:-14px;left:28px;
  background:var(--clay);color:#fff;font-size:12px;font-weight:600;
  padding:6px 14px;border-radius:999px;letter-spacing:.04em;
}
.about-figure h3{font-size:21px;}
.about-figure .place{color:var(--ink-soft);font-size:14px;margin-bottom:18px;}
.about-figure ul{margin:0;padding-left:18px;color:var(--ink-soft);font-size:14.5px;}
.about-figure li{margin-bottom:8px;}
.about-body p{color:var(--ink-soft);font-size:16px;}
.about-body p:first-of-type{color:var(--ink);font-size:18px;font-family:'Fraunces',serif;}
.signature{
  margin-top:26px;font-family:'Fraunces',serif;font-style:italic;font-size:20px;color:var(--river-dark);
}

/* ============================================================
   7. LĨNH VỰC
   ============================================================ */
.pillars{background:var(--paper-2);}
.pillar-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
/* Khi ẩn bớt thẻ, lưới tự co lại cho cân đối */
.pillar-grid--3{grid-template-columns:repeat(3,1fr);}
.pillar-grid--2{grid-template-columns:repeat(2,1fr);max-width:720px;}
.pillar-grid--1{grid-template-columns:1fr;max-width:360px;}
.pillar-card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:16px;
  padding:28px 24px;
  transition:border-color .15s ease, transform .15s ease;
}
.pillar-card:hover{border-color:var(--river);transform:translateY(-4px);}
.pillar-icon{
  width:46px;height:46px;border-radius:12px;
  background:var(--river);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:'Fraunces',serif;font-size:19px;margin-bottom:16px;
}
.pillar-card:nth-child(2) .pillar-icon{background:var(--gold-dark);}
.pillar-card:nth-child(3) .pillar-icon{background:var(--clay);}
.pillar-card:nth-child(4) .pillar-icon{background:var(--ink);}
.pillar-card h3{font-size:18px;}
.pillar-card p{color:var(--ink-soft);font-size:14.5px;margin:0;}

/* ============================================================
   8. THẺ BÀI VIẾT
   ============================================================ */
.blog-section .section-head{display:flex;justify-content:space-between;align-items:flex-end;max-width:none;gap:24px;flex-wrap:wrap;}
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.post-card{
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  background:var(--paper-2);
  display:flex;flex-direction:column;
}
.post-media{
  height:130px;
  background:linear-gradient(135deg,var(--river) 0%, var(--river-dark) 100%);
  display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.85);font-family:'Fraunces',serif;font-style:italic;font-size:15px;
  overflow:hidden;
}
.post-media img{width:100%;height:100%;object-fit:cover;}
/* Ảnh mặc định xoay vòng khi bài viết không có ảnh đại diện */
.post-card:nth-child(3n+2) .post-media{background:linear-gradient(135deg,#C1684F,#8C3F2C);}
.post-card:nth-child(3n+3) .post-media{background:linear-gradient(135deg,#C99A3D,#8F6A22);}
.post-body{padding:22px 24px 26px;flex:1;display:flex;flex-direction:column;}
.post-date{font-size:12.5px;color:var(--gold-dark);font-weight:600;letter-spacing:.04em;text-transform:uppercase;margin-bottom:8px;}
.post-body h3{font-size:18px;margin-bottom:10px;}
.post-body h3 a:hover{color:var(--river-dark);}
.post-body p{color:var(--ink-soft);font-size:14.5px;flex:1;}
.post-link{font-size:14px;font-weight:600;color:var(--river-dark);margin-top:12px;align-self:flex-start;}
.post-link:hover{text-decoration:underline;}

/* ============================================================
   9. VÌ SAO THEO DÕI
   ============================================================ */
.why .wrap{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}
.why-title{font-size:30px;}
.why-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:22px;}
.why-list li{display:flex;gap:16px;align-items:flex-start;}
.check{
  width:28px;height:28px;border-radius:50%;flex-shrink:0;
  background:var(--river);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
  margin-top:2px;
}
.why-list h4{font-size:16.5px;margin:0 0 4px;font-family:'Be Vietnam Pro',sans-serif;font-weight:600;}
.why-list p{color:var(--ink-soft);font-size:14.5px;margin:0;}
.why-visual{
  background:var(--ink);
  border-radius:20px;
  padding:40px;
  color:#F4EFE1;
  position:relative;
}
.why-visual .big{font-family:'Fraunces',serif;font-size:56px;color:var(--gold);font-weight:600;line-height:1;}
.why-visual .cap{font-size:14px;color:#B9C9C6;margin-top:10px;}
.why-visual hr{border:none;border-top:1px solid rgba(255,255,255,.15);margin:26px 0;}

/* ============================================================
   10. BANNER KÊU GỌI
   ============================================================ */
.cta-banner{
  background:linear-gradient(120deg,var(--river-dark),var(--river));
  color:#fff;text-align:center;
}
.cta-banner h2{color:#fff;font-size:30px;max-width:620px;margin:0 auto 12px;}
.cta-banner p{color:#DCEEEA;max-width:520px;margin:0 auto 30px;}

/* ============================================================
   11. LIÊN HỆ
   ============================================================ */
.contact .wrap{display:grid;grid-template-columns:1fr 1fr;gap:0;align-items:stretch;
  border:1px solid var(--line);border-radius:20px;overflow:hidden;background:var(--paper-2);}
.contact-info{padding:44px;}
.contact-info h2{font-size:26px;}
.contact-row{display:flex;gap:14px;margin-bottom:20px;align-items:flex-start;}
.contact-row .ic{
  width:38px;height:38px;border-radius:10px;background:var(--river);color:#fff;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:16px;
}
.contact-row b{display:block;font-size:14.5px;}
.contact-row span{color:var(--ink-soft);font-size:14px;}
.map-embed iframe{width:100%;height:100%;min-height:360px;border:0;display:block;}

/* ============================================================
   12. FOOTER
   ============================================================ */
.site-footer{background:var(--ink);color:#B9C9C6;padding:50px 0 24px;}
.site-footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:24px;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.1);}
.site-footer .f-logo{font-family:'Fraunces',serif;color:#fff;font-size:19px;margin-bottom:8px;}
.site-footer .f-tagline{max-width:320px;color:#94A9A5;font-size:14px;}
.site-footer .f-links{display:flex;gap:28px;list-style:none;padding:0;margin:0;flex-wrap:wrap;}
.site-footer .f-links a{font-size:14px;}
.site-footer .f-links a:hover{color:#fff;}
.site-footer .f-bottom{padding-top:20px;font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;border:none;padding-bottom:0;}

/* ============================================================
   13. TRANG LƯU TRỮ / TRANG ĐƠN
   ============================================================ */
.page-hero{
  background:radial-gradient(120% 160% at 80% -20%, #E4F1EC 0%, #FBF6E9 60%, #FCEEDB 100%);
  padding:64px 0 56px;
  border-bottom:1px solid var(--line);
}
.page-hero h1{font-size:38px;max-width:760px;margin-bottom:12px;}
.page-hero .meta{color:var(--ink-soft);font-size:14.5px;display:flex;gap:18px;flex-wrap:wrap;align-items:center;}
.page-hero .meta a{color:var(--river-dark);font-weight:600;}
.page-hero .meta a:hover{text-decoration:underline;}

.content-area{max-width:760px;margin:0 auto;padding:64px 24px 80px;}
.content-area.has-sidebar{max-width:var(--wrap);display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start;}

.entry-content{font-size:17px;color:var(--ink);}
.entry-content h2{font-size:28px;margin-top:1.6em;}
.entry-content h3{font-size:22px;margin-top:1.5em;}
.entry-content h4{font-size:18px;margin-top:1.4em;}
.entry-content a{color:var(--river-dark);text-decoration:underline;text-underline-offset:3px;}
.entry-content a:hover{color:var(--clay);}
.entry-content ul,.entry-content ol{padding-left:24px;margin:0 0 1.2em;}
.entry-content li{margin-bottom:8px;}
.entry-content img,.entry-content figure{border-radius:14px;margin:1.6em 0;}
.entry-content figure img{border-radius:14px;}
.entry-content figcaption,.wp-caption-text{font-size:13.5px;color:var(--ink-soft);text-align:center;margin-top:8px;}
.entry-content blockquote{
  margin:1.8em 0;padding:20px 26px;
  border-left:3px solid var(--gold);
  background:var(--paper-2);border-radius:0 14px 14px 0;
  font-family:'Fraunces',serif;font-size:18px;color:var(--ink);
}
.entry-content blockquote p:last-child{margin-bottom:0;}
.entry-content code{background:var(--paper-2);padding:2px 6px;border-radius:5px;font-size:.92em;}
.entry-content pre{background:var(--ink);color:#F4EFE1;padding:20px;border-radius:14px;overflow-x:auto;}
.entry-content pre code{background:none;color:inherit;padding:0;}
.entry-content table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;display:block;overflow-x:auto;}
.entry-content th,.entry-content td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.entry-content th{background:var(--paper-2);font-weight:600;}
.entry-content .alignleft{float:left;margin:0 1.5em 1em 0;}
.entry-content .alignright{float:right;margin:0 0 1em 1.5em;}
.entry-content .aligncenter{margin-left:auto;margin-right:auto;}

.entry-footer{margin-top:48px;padding-top:24px;border-top:1px solid var(--line);}
.tag-list{display:flex;gap:10px;flex-wrap:wrap;}
.tag-list a{
  font-size:13px;padding:5px 14px;border-radius:999px;
  background:var(--paper-2);border:1px solid var(--line);color:var(--ink-soft);
}
.tag-list a:hover{border-color:var(--river);color:var(--river-dark);}

.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:40px;}
.post-nav a{
  border:1px solid var(--line);border-radius:14px;padding:20px 22px;background:var(--paper-2);
  display:block;transition:border-color .15s ease;
}
.post-nav a:hover{border-color:var(--river);}
.post-nav .dir{font-size:12.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--gold-dark);font-weight:600;margin-bottom:6px;display:block;}
.post-nav .ttl{font-family:'Fraunces',serif;font-size:16.5px;}
.post-nav .next{text-align:right;}

.pagination{display:flex;gap:10px;justify-content:center;margin-top:56px;flex-wrap:wrap;}
.pagination .page-numbers{
  min-width:42px;height:42px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:var(--paper-2);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:600;color:var(--ink-soft);
}
.pagination .page-numbers:hover{border-color:var(--river);color:var(--river-dark);}
.pagination .page-numbers.current{background:var(--river-dark);border-color:var(--river-dark);color:#fff;}

.widget-area .widget{
  background:var(--paper-2);border:1px solid var(--line);border-radius:16px;
  padding:24px;margin-bottom:24px;
}
.widget-area .widget-title{font-size:17px;margin-bottom:14px;}
.widget-area ul{list-style:none;margin:0;padding:0;}
.widget-area li{padding:7px 0;border-bottom:1px solid var(--line);font-size:14.5px;color:var(--ink-soft);}
.widget-area li:last-child{border-bottom:none;}
.widget-area a:hover{color:var(--river-dark);}

.comments-area{margin-top:64px;padding-top:40px;border-top:1px solid var(--line);}
.comments-area h2,.comments-area h3{font-size:22px;}
.comment-list{list-style:none;margin:0 0 40px;padding:0;}
.comment-list li{margin-bottom:24px;}
.comment-body{background:var(--paper-2);border:1px solid var(--line);border-radius:14px;padding:20px 24px;}
.comment-meta{font-size:13px;color:var(--ink-soft);margin-bottom:8px;}
.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea{
  width:100%;padding:12px 16px;border:1px solid var(--line);border-radius:12px;
  background:#fff;font-family:inherit;font-size:15px;color:var(--ink);margin-top:6px;
}
.comment-form label{font-size:14px;font-weight:600;}
.comment-form p{margin-bottom:16px;}
.comment-form .submit{
  background:var(--gold);color:var(--river-dark);border:none;
  padding:14px 28px;border-radius:999px;font-weight:600;font-size:15px;cursor:pointer;
  font-family:inherit;
}
.comment-form .submit:hover{background:var(--gold-dark);color:#fff;}

.search-form{display:flex;gap:10px;}
.search-form input[type="search"]{
  flex:1;padding:12px 16px;border:1px solid var(--line);border-radius:999px;
  background:#fff;font-family:inherit;font-size:15px;
}
.search-form input[type="submit"]{
  background:var(--river-dark);color:#fff;border:none;padding:12px 22px;
  border-radius:999px;font-weight:600;cursor:pointer;font-family:inherit;
}

.no-results{text-align:center;padding:60px 0;color:var(--ink-soft);}

/* ============================================================
   14. KHỐI CTA DẪN VỀ LEAD PAGE
   ============================================================ */
.lead-cta{
  margin:56px 0 8px;
  border-radius:18px;
  background:linear-gradient(135deg,var(--river-dark) 0%, var(--river) 100%);
  color:#fff;
  overflow:hidden;
  position:relative;
}
.lead-cta::after{
  content:"";
  position:absolute;right:-60px;top:-60px;
  width:220px;height:220px;border-radius:50%;
  background:rgba(217,164,65,.16);
  pointer-events:none;
}
.lead-cta__inner{padding:38px 40px;position:relative;z-index:1;}
.lead-cta__eyebrow{
  font-size:12.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--gold);display:block;margin-bottom:10px;
}
.lead-cta__title{
  font-family:'Fraunces',serif;font-size:25px;color:#fff;
  margin:0 0 10px;line-height:1.2;
}
.lead-cta__text{
  color:#DCEEEA;font-size:15.5px;margin:0 0 22px;max-width:520px;
}
.lead-cta__btn{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--gold);color:var(--river-dark);
  padding:14px 28px;border-radius:999px;
  font-weight:600;font-size:15px;
  text-decoration:none;
  transition:transform .15s ease, background .15s ease, color .15s ease;
}
.lead-cta__btn:hover{background:#fff;color:var(--river-dark);transform:translateY(-2px);}
.entry-content .lead-cta__btn{text-decoration:none;}
.lead-cta__note{
  display:block;margin-top:14px;font-size:13px;color:rgba(255,255,255,.6);
}

/* ============================================================
   15. RESPONSIVE
   ============================================================ */
@media (max-width:900px){
  section{padding:64px 0;}
  .hero{padding-top:64px;}
  .hero .wrap{grid-template-columns:1fr;gap:36px;}
  .hero h1{font-size:34px;}
  .hero-card{order:-1;}
  .stats-strip .wrap{grid-template-columns:repeat(2,1fr);}
  .about .wrap,.why .wrap{grid-template-columns:1fr;gap:40px;}
  .pillar-grid{grid-template-columns:repeat(2,1fr);}
  .blog-grid{grid-template-columns:1fr;}
  .contact .wrap{grid-template-columns:1fr;}
  .contact-info{padding:32px;}
  .content-area.has-sidebar{grid-template-columns:1fr;gap:40px;}
  .page-hero h1{font-size:29px;}
  .section-head h2{font-size:26px;}

  /* Menu di động */
  .menu-toggle{display:block;}
  .main-nav{
    display:none;
    position:absolute;top:100%;left:0;right:0;
    background:var(--paper);
    border-bottom:1px solid var(--line);
    padding:12px 24px 20px;
    box-shadow:0 18px 40px -22px rgba(22,40,61,.3);
  }
  .main-nav.is-open{display:block;}
  .main-nav ul{flex-direction:column;gap:0;}
  .main-nav > div > ul > li{border-bottom:1px solid var(--line);}
  .main-nav > div > ul > li:last-child{border-bottom:none;}
  .main-nav a{padding:13px 0;font-size:16px;}
  .main-nav .sub-menu{
    display:flex;position:static;border:none;box-shadow:none;
    background:transparent;padding:0 0 8px 16px;min-width:0;
  }
}

@media (max-width:560px){
  .topbar .wrap{flex-direction:column;align-items:flex-start;gap:4px;}
  .stats-strip .wrap{grid-template-columns:1fr;}
  .pillar-grid{grid-template-columns:1fr;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav .next{text-align:left;}
  .logo-text .sub{display:none;}
  .hero h1{font-size:29px;}
  .why-visual{padding:28px;}
  .why-visual .big{font-size:44px;}
  .lead-cta__inner{padding:28px 24px;}
  .lead-cta__title{font-size:21px;}
}