/* =====================================================================
   WEBGAO - CSS tu viet, khong dung thu vien ngoai
   Bang mau: xanh la lua + vang nau hat gao
   ===================================================================*/

:root{
  --green-900:#14432a;
  --green-700:#1e6b41;
  --green-600:#2a8654;
  --green-500:#35a066;
  --green-100:#e7f4ec;
  --rice-700:#8a6a2f;
  --rice-500:#c9a227;
  --rice-200:#f6e9c4;
  --rice-50:#fdf8ec;
  --ink-900:#1d2320;
  --ink-700:#3f4a44;
  --ink-500:#6b7871;
  --ink-300:#aab5af;
  --line:#e2e8e4;
  --bg:#f7f9f7;
  --white:#fff;
  --danger:#b4232a;
  --danger-bg:#fdecec;
  --warn:#9a6b06;
  --warn-bg:#fdf4e0;
  --info:#1c5e86;
  --info-bg:#e8f3fa;
  --radius:10px;
  --radius-sm:6px;
  --shadow:0 1px 2px rgba(20,40,30,.06), 0 6px 18px rgba(20,40,30,.06);
  --shadow-lg:0 10px 30px rgba(20,40,30,.12);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  font-size:15.5px;
  line-height:1.6;
  color:var(--ink-900);
  background:var(--bg);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--green-700);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4,h5{margin:0 0 .5em;line-height:1.3;font-weight:700}
h1{font-size:1.85rem}
h2{font-size:1.45rem}
h3{font-size:1.15rem}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.25em}
hr{border:0;border-top:1px solid var(--line);margin:22px 0}
small{font-size:.85em}
table{border-collapse:collapse;width:100%}

.container{width:100%;max-width:1180px;margin:0 auto;padding:0 16px}
.hide-sm{display:inline}
.text-center{text-align:center}
.text-right{text-align:right}
.text-muted{color:var(--ink-500)}
.text-danger{color:var(--danger)}
.text-green{color:var(--green-700)}
.mt-0{margin-top:0}.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}
.mb-0{margin-bottom:0}.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.mb-3{margin-bottom:24px}
.nowrap{white-space:nowrap}

/* ---------------- Topbar ---------------- */
.topbar{background:var(--green-900);color:#d8ebe0;font-size:.82rem}
.topbar-inner{display:flex;align-items:center;gap:18px;min-height:34px;flex-wrap:wrap}
.topbar a{color:#d8ebe0}
.topbar-right{margin-left:auto;display:flex;gap:14px}

/* ---------------- Header ---------------- */
.site-header{background:var(--white);box-shadow:var(--shadow);position:relative;z-index:20}
.header-inner{display:flex;align-items:center;gap:18px;padding:12px 16px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink-900)}
.logo:hover{text-decoration:none}
.logo-mark{font-size:2rem;line-height:1}
.logo-text strong{display:block;font-size:1.12rem;color:var(--green-800,#14432a)}
.logo-text small{display:block;color:var(--ink-500);font-size:.76rem}

.search-box{flex:1 1 260px;display:flex;max-width:460px;border:1.5px solid var(--line);border-radius:999px;overflow:hidden;background:var(--white)}
.search-box:focus-within{border-color:var(--green-500)}
.search-box input{flex:1;border:0;padding:9px 16px;font-size:.95rem;outline:none;background:transparent;font-family:inherit}
.search-box button{border:0;background:var(--green-600);color:#fff;padding:0 20px;cursor:pointer;font-weight:600;font-family:inherit}
.search-box button:hover{background:var(--green-700)}

.header-actions{display:flex;align-items:center;gap:10px}
.btn-cart{display:inline-flex;align-items:center;gap:8px;background:var(--rice-500);color:#3a2c00;font-weight:700;padding:9px 16px;border-radius:999px}
.btn-cart:hover{background:var(--rice-200);text-decoration:none}
.cart-badge{background:var(--green-900);color:#fff;border-radius:999px;min-width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;font-size:.76rem;padding:0 6px}

.nav-toggle{display:none;border:1px solid var(--line);background:#fff;font-size:1.3rem;border-radius:var(--radius-sm);padding:4px 12px;cursor:pointer}

.main-nav{background:var(--green-700)}
.nav-inner{display:flex;flex-wrap:wrap;gap:2px}
.main-nav a{color:#eaf5ee;padding:11px 14px;font-size:.93rem;font-weight:500}
.main-nav a:hover,.main-nav a.active{background:var(--green-900);text-decoration:none}

.site-main{padding:22px 0 42px;min-height:50vh}

/* ---------------- Buttons ---------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;border-radius:var(--radius-sm);cursor:pointer;
  font-family:inherit;font-size:.95rem;font-weight:600;
  padding:10px 18px;background:var(--green-600);color:#fff;text-decoration:none;
  transition:background .15s ease;
}
.btn:hover{background:var(--green-700);text-decoration:none;color:#fff}
.btn-lg{padding:13px 26px;font-size:1.02rem}
.btn-sm{padding:6px 12px;font-size:.85rem}
.btn-block{width:100%}
.btn-outline{background:transparent;border:1.5px solid var(--green-600);color:var(--green-700)}
.btn-outline:hover{background:var(--green-100);color:var(--green-900)}
.btn-rice{background:var(--rice-500);color:#3a2c00}
.btn-rice:hover{background:var(--rice-700);color:#fff}
.btn-gray{background:#e9eeeb;color:var(--ink-700)}
.btn-gray:hover{background:#dae2dd;color:var(--ink-900)}
.btn-danger{background:var(--danger)}
.btn-danger:hover{background:#8c1a20}
.btn[disabled],.btn.disabled{opacity:.55;cursor:not-allowed}

/* ---------------- Alerts / badges ---------------- */
.alert{padding:12px 16px;border-radius:var(--radius-sm);margin:0 0 16px;border-left:4px solid;font-size:.95rem}
.alert-success{background:var(--green-100);border-color:var(--green-600);color:#14432a}
.alert-danger{background:var(--danger-bg);border-color:var(--danger);color:#7d181d}
.alert-warning{background:var(--warn-bg);border-color:var(--rice-500);color:#6d4c05}
.alert-info{background:var(--info-bg);border-color:var(--info);color:#16465f}

.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:.75rem;font-weight:700;background:#e9eeeb;color:var(--ink-700)}
.badge-green{background:var(--green-100);color:var(--green-700)}
.badge-rice{background:var(--rice-200);color:var(--rice-700)}
.badge-danger{background:var(--danger-bg);color:var(--danger)}
.badge-info{background:var(--info-bg);color:var(--info)}
.badge-warn{background:var(--warn-bg);color:var(--warn)}
.badge-gray{background:#eceeed;color:var(--ink-500)}

/* ---------------- Cards / sections ---------------- */
.card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-bottom:22px}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.card-head h2,.card-head h3{margin:0}
.section{margin:34px 0}
.section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:16px;flex-wrap:wrap}
.section-title h2{margin:0;position:relative;padding-left:14px}
.section-title h2::before{content:"";position:absolute;left:0;top:3px;bottom:3px;width:5px;border-radius:3px;background:var(--rice-500)}
.section-title p{margin:2px 0 0;color:var(--ink-500);font-size:.9rem}

/* ---------------- Hero ---------------- */
.hero{
  background:linear-gradient(115deg,var(--green-900) 0%,var(--green-700) 55%,var(--green-600) 100%);
  color:#fff;border-radius:var(--radius);overflow:hidden;position:relative;margin-bottom:26px;
}
.hero::after{
  content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;border-radius:50%;
  background:rgba(201,162,39,.22);
}
.hero-inner{position:relative;z-index:2;padding:42px 30px;max-width:660px}
.hero h1{font-size:2.1rem;color:#fff;margin-bottom:10px}
.hero p{font-size:1.03rem;color:#dcefe3;margin-bottom:20px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-badges{display:flex;gap:22px;margin-top:26px;flex-wrap:wrap;font-size:.88rem;color:#cde7d8}
.hero-badges b{display:block;color:#fff;font-size:1.15rem}

/* ---------------- Feature strip ---------------- */
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:28px}
.feature{background:#fff;border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);display:flex;gap:12px;align-items:flex-start}
.feature .ico{font-size:1.5rem;line-height:1}
.feature strong{display:block;font-size:.97rem}
.feature span{color:var(--ink-500);font-size:.85rem}

/* ---------------- Product grid ---------------- */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.product-grid.cols-4{grid-template-columns:repeat(4,1fr)}
.product-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;transition:transform .15s ease,box-shadow .15s ease;position:relative}
.product-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.product-thumb{display:block;background:var(--rice-50);aspect-ratio:4/3;overflow:hidden}
.product-thumb img{width:100%;height:100%;object-fit:cover}
.product-body{padding:14px;display:flex;flex-direction:column;flex:1}
.product-cat{font-size:.76rem;color:var(--ink-500);text-transform:uppercase;letter-spacing:.04em}
.product-name{font-size:1rem;font-weight:700;margin:4px 0 6px}
.product-name a{color:var(--ink-900)}
.product-meta{font-size:.83rem;color:var(--ink-500);margin-bottom:8px}
.price-row{display:flex;align-items:baseline;gap:9px;margin-top:auto}
.price{font-size:1.12rem;font-weight:800;color:var(--danger)}
.price-old{font-size:.87rem;color:var(--ink-300);text-decoration:line-through}
.product-actions{display:flex;gap:8px;margin-top:12px}
.product-actions .btn{flex:1;padding:8px 10px;font-size:.88rem}
.ribbon{position:absolute;top:10px;left:10px;background:var(--danger);color:#fff;font-size:.72rem;font-weight:700;padding:3px 9px;border-radius:999px;z-index:2}
.ribbon.sold-out{background:var(--ink-500)}
.ribbon.hot{background:var(--rice-500);color:#3a2c00}

.stars{color:var(--rice-500);letter-spacing:1px;font-size:.95rem}
.stars .star{color:#d8ded9}
.stars .star.on{color:var(--rice-500)}

/* ---------------- Layout with sidebar ---------------- */
.layout{display:grid;grid-template-columns:250px 1fr;gap:22px;align-items:start}
.sidebar{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;position:sticky;top:12px}
.sidebar h3{font-size:1rem;margin-bottom:10px;padding-bottom:8px;border-bottom:1px solid var(--line)}
.sidebar ul{list-style:none;padding:0;margin:0 0 18px}
.sidebar li{margin-bottom:2px}
.sidebar li a{display:block;padding:7px 10px;border-radius:var(--radius-sm);color:var(--ink-700);font-size:.92rem}
.sidebar li a:hover{background:var(--green-100);text-decoration:none}
.sidebar li a.active{background:var(--green-600);color:#fff;font-weight:600}

/* ---------------- Forms ---------------- */
.form-row{margin-bottom:15px}
.form-row label{display:block;font-weight:600;font-size:.9rem;margin-bottom:5px}
.form-row .req{color:var(--danger)}
.form-row .hint{display:block;color:var(--ink-500);font-size:.82rem;margin-top:4px}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=tel],input[type=date],input[type=search],select,textarea{
  width:100%;padding:10px 12px;border:1.5px solid var(--line);border-radius:var(--radius-sm);
  font-family:inherit;font-size:.95rem;color:var(--ink-900);background:#fff;outline:none;
}
input:focus,select:focus,textarea:focus{border-color:var(--green-500);box-shadow:0 0 0 3px rgba(53,160,102,.12)}
textarea{min-height:110px;resize:vertical}
select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-500) 50%),linear-gradient(135deg,var(--ink-500) 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:38px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.form-grid .full{grid-column:1/-1}
.check{display:flex;gap:9px;align-items:flex-start;margin-bottom:10px;font-size:.94rem}
.check input{margin-top:3px}
.radio-card{display:block;border:1.5px solid var(--line);border-radius:var(--radius-sm);padding:12px 14px;margin-bottom:10px;cursor:pointer}
.radio-card:hover{border-color:var(--green-500)}
.radio-card.selected{border-color:var(--green-600);background:var(--green-100)}
.radio-card .rc-head{display:flex;align-items:center;gap:9px;font-weight:700}
.radio-card .rc-desc{color:var(--ink-500);font-size:.85rem;margin:5px 0 0 26px}

/* ---------------- Tables ---------------- */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.table{background:#fff;border-radius:var(--radius);overflow:hidden;font-size:.92rem;min-width:560px}
.table th,.table td{padding:11px 13px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
.table th{background:var(--green-100);color:var(--green-900);font-weight:700;font-size:.85rem;text-transform:uppercase;letter-spacing:.03em}
.table tbody tr:hover{background:#fafcfa}
.table tbody tr:last-child td{border-bottom:0}
.table .num{text-align:right;white-space:nowrap}

/* ---------------- Cart ---------------- */
.cart-layout{display:grid;grid-template-columns:1fr 340px;gap:22px;align-items:start}
.cart-item-thumb{width:64px;height:52px;object-fit:cover;border-radius:var(--radius-sm);background:var(--rice-50)}
.qty-box{display:inline-flex;align-items:center;border:1.5px solid var(--line);border-radius:var(--radius-sm);overflow:hidden}
.qty-box button{width:32px;height:34px;border:0;background:#f2f5f3;font-size:1.05rem;cursor:pointer;color:var(--ink-700);font-family:inherit}
.qty-box button:hover{background:var(--green-100)}
.qty-box input{width:46px;height:34px;border:0;border-left:1px solid var(--line);border-right:1px solid var(--line);text-align:center;padding:0;font-size:.95rem}
.summary-line{display:flex;justify-content:space-between;gap:10px;padding:7px 0;font-size:.95rem}
.summary-line.total{border-top:1px dashed var(--line);margin-top:8px;padding-top:12px;font-size:1.15rem;font-weight:800;color:var(--danger)}
.summary-note{font-size:.83rem;color:var(--ink-500)}
.coupon-form{display:flex;gap:8px;margin:12px 0}
.coupon-form input{flex:1}

/* ---------------- Steps ---------------- */
.steps{display:flex;gap:6px;margin-bottom:22px;flex-wrap:wrap}
.step{flex:1 1 140px;background:#fff;border-radius:var(--radius-sm);padding:10px 14px;box-shadow:var(--shadow);font-size:.88rem;color:var(--ink-500);border-left:4px solid var(--line)}
.step.done{border-left-color:var(--green-600);color:var(--green-700)}
.step.current{border-left-color:var(--rice-500);color:var(--ink-900);font-weight:700}
.step b{display:block;font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-300)}

/* ---------------- Product detail ---------------- */
.detail-layout{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:start}
.detail-img{background:var(--rice-50);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.detail-img img{width:100%;aspect-ratio:4/3;object-fit:cover}
.detail-price{font-size:1.85rem;font-weight:800;color:var(--danger);margin:6px 0}
.detail-table{font-size:.93rem;margin:16px 0}
.detail-table td{padding:7px 0;border-bottom:1px dashed var(--line)}
.detail-table td:first-child{color:var(--ink-500);width:42%}
.buy-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:18px 0}
.tabs{display:flex;gap:4px;border-bottom:2px solid var(--line);margin:30px 0 0;flex-wrap:wrap}
.tabs button{border:0;background:transparent;padding:11px 18px;font-family:inherit;font-size:.97rem;font-weight:600;color:var(--ink-500);cursor:pointer;border-bottom:3px solid transparent;margin-bottom:-2px}
.tabs button.active{color:var(--green-700);border-bottom-color:var(--green-600)}
.tab-panel{display:none;background:#fff;border-radius:0 0 var(--radius) var(--radius);padding:22px;box-shadow:var(--shadow)}
.tab-panel.active{display:block}
.content-body{font-size:.98rem}
.content-body h3{margin-top:20px}
.content-body img{border-radius:var(--radius-sm);margin:12px 0}

/* ---------------- Reviews ---------------- */
.review{border-bottom:1px solid var(--line);padding:14px 0}
.review:last-child{border-bottom:0}
.review-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.review-head strong{font-size:.97rem}
.review-head time{color:var(--ink-300);font-size:.82rem}
.rating-input{display:flex;gap:6px;align-items:center;margin-bottom:12px}
.rating-input label{cursor:pointer;font-size:1.5rem;color:#d8ded9;margin:0}
.rating-input input{display:none}
.rating-input label.on{color:var(--rice-500)}
.rating-summary{display:flex;gap:18px;align-items:center;background:var(--rice-50);border-radius:var(--radius-sm);padding:14px 18px;margin-bottom:18px;flex-wrap:wrap}
.rating-big{font-size:2.3rem;font-weight:800;color:var(--rice-700);line-height:1}

/* ---------------- Posts ---------------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.post-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column}
.post-card .thumb{aspect-ratio:16/9;background:var(--green-100);overflow:hidden}
.post-card .thumb img{width:100%;height:100%;object-fit:cover}
.post-card .body{padding:14px;display:flex;flex-direction:column;flex:1}
.post-card h3{font-size:1.03rem;margin-bottom:6px}
.post-card h3 a{color:var(--ink-900)}
.post-card p{font-size:.88rem;color:var(--ink-500);flex:1}
.post-meta{font-size:.8rem;color:var(--ink-300);display:flex;gap:12px;flex-wrap:wrap}
.article{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:26px;max-width:820px;margin:0 auto}
.article h1{font-size:1.75rem}

/* ---------------- QR payment ---------------- */
.qr-box{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;text-align:center}
.qr-frame{display:inline-block;padding:14px;border:3px solid var(--green-600);border-radius:var(--radius);background:#fff}
.qr-frame img{width:260px;height:260px;image-rendering:pixelated}
.qr-info{text-align:left;max-width:420px;margin:18px auto 0;font-size:.95rem}
.qr-info .line{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px dashed var(--line)}
.qr-info .line b{text-align:right}
.copy-btn{border:1px solid var(--line);background:#f6f8f7;border-radius:4px;font-size:.75rem;padding:2px 7px;cursor:pointer;font-family:inherit;margin-left:6px}
.copy-btn:hover{background:var(--green-100)}
.countdown{font-weight:700;color:var(--danger)}

/* ---------------- Timeline ---------------- */
.timeline{list-style:none;padding:0;margin:0}
.timeline li{position:relative;padding:0 0 16px 24px;border-left:2px solid var(--line)}
.timeline li:last-child{border-left-color:transparent;padding-bottom:0}
.timeline li::before{content:"";position:absolute;left:-7px;top:3px;width:12px;height:12px;border-radius:50%;background:var(--green-600);border:2px solid #fff}
.timeline .tl-time{font-size:.8rem;color:var(--ink-300)}
.timeline .tl-title{font-weight:700;font-size:.95rem}
.timeline .tl-note{font-size:.88rem;color:var(--ink-500)}

/* ---------------- Pagination ---------------- */
.pagination{display:flex;gap:6px;justify-content:center;margin:26px 0 0;flex-wrap:wrap}
.pagination a,.pagination .dots{display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:38px;padding:0 10px;background:#fff;border-radius:var(--radius-sm);box-shadow:var(--shadow);color:var(--ink-700);font-size:.92rem}
.pagination a:hover{background:var(--green-100);text-decoration:none}
.pagination a.active{background:var(--green-600);color:#fff;font-weight:700}

/* ---------------- Empty state ---------------- */
.empty{text-align:center;padding:48px 20px;color:var(--ink-500)}
.empty .ico{font-size:3rem;display:block;margin-bottom:10px}

/* ---------------- Footer ---------------- */
.site-footer{background:var(--green-900);color:#c9ddd1;margin-top:40px;font-size:.9rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:26px;padding:34px 16px}
.site-footer h4{color:#fff;font-size:1rem;margin-bottom:12px}
.site-footer a{color:#c9ddd1}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:7px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:14px 0;font-size:.83rem}

.back-to-top{
  position:fixed;right:18px;bottom:18px;width:42px;height:42px;border-radius:50%;
  background:var(--green-700);color:#fff;display:none;align-items:center;justify-content:center;
  font-size:1.2rem;box-shadow:var(--shadow-lg);z-index:40;
}
.back-to-top.show{display:flex}
.back-to-top:hover{background:var(--green-900);text-decoration:none}

/* ---------------- Responsive ---------------- */
@media (max-width:980px){
  .features{grid-template-columns:repeat(2,1fr)}
  .product-grid,.product-grid.cols-4{grid-template-columns:repeat(2,1fr)}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .layout{grid-template-columns:1fr}
  .sidebar{position:static}
  .cart-layout{grid-template-columns:1fr}
  .detail-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  body{font-size:15px}
  h1{font-size:1.5rem}
  .hide-sm{display:none}
  .header-inner{gap:10px;padding:10px 16px}
  .search-box{order:3;flex-basis:100%;max-width:none}
  .logo-text small{display:none}
  .nav-toggle{display:block;margin-left:auto;order:2}
  .header-actions{order:1;margin-left:auto}
  .main-nav{display:none}
  .main-nav.open{display:block}
  .nav-inner{flex-direction:column}
  .main-nav a{padding:11px 16px;border-bottom:1px solid rgba(255,255,255,.08)}
  .features{grid-template-columns:1fr}
  .product-grid,.product-grid.cols-4,.post-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .hero-inner{padding:30px 20px}
  .hero h1{font-size:1.6rem}
  .footer-grid{grid-template-columns:1fr;gap:20px;padding:26px 16px}
  .qr-frame img{width:220px;height:220px}
  .card{padding:16px}
}
@media print{
  .topbar,.site-header,.site-footer,.back-to-top,.btn{display:none}
  body{background:#fff}
  .card{box-shadow:none;border:1px solid #ccc}
}