/* =========================================================
   Giao diện vachnganchongngap.com ("vncn") – nạp sau style.css khi Cài đặt website › Giao diện = vncn.
   Xanh lá đậm + vàng nghệ, góc vuông gọn, tiêu đề Lexend, nền quầng màu nhẹ (không sọc),
   banner nền sáng, tiêu đề mục căn trái – để khách không nhầm với cuachongngap.vn (xanh dương + cam, bo tròn).
   Chỉ đổi giao diện; bố cục HTML, nội dung, SEO giữ nguyên.
   ========================================================= */
:root {
	--navy: #0c2a22;
	--navy-2: #123a2f;
	--primary: #11704f;
	--primary-dark: #0a5038;
	--brand: #1c9a6e;
	--sky: #ecf6f1;
	--sky-2: #cfe7dc;
	--accent: #e2a414; /* vàng nghệ */
	--accent-dark: #c08708;
	--ink: #14211c;
	--text: #33433c;
	--muted: #627069;
	--line: #dce5e0;
	--bg-alt: #f3f6f4;
	--radius: 4px;
	--radius-sm: 3px;
	--shadow-sm: 0 1px 2px rgba(12, 42, 34, .08);
	--shadow: 0 8px 24px rgba(12, 42, 34, .10);
	--shadow-lg: 0 18px 44px rgba(12, 42, 34, .18);
	--head: "Lexend", var(--font);
	/* Nền hiện đại: quầng sáng xanh – vàng rất nhẹ (thay sọc chéo) */
	--glow: radial-gradient(900px 420px at 88% -10%, rgba(28, 154, 110, .16), transparent 65%), radial-gradient(700px 380px at -5% 110%, rgba(226, 164, 20, .14), transparent 60%);
	--glow-dark: radial-gradient(900px 420px at 90% 0%, rgba(28, 154, 110, .35), transparent 60%), radial-gradient(600px 320px at 0% 100%, rgba(226, 164, 20, .12), transparent 60%);
}

h1, h2, h3, h4, .hero__title, .product__title, .page-hero__title, .stat strong, .logo__name { font-family: var(--head); letter-spacing: -.015em; }
h1, h2 { font-weight: 700; }

/* ---------- Nút: góc vuông, chữ in hoa ---------- */
.btn { border-radius: var(--radius); text-transform: uppercase; letter-spacing: .04em; font-size: 14px; }
.btn:hover { transform: none; }
.btn--primary { box-shadow: none; }
.btn--accent { color: var(--ink); box-shadow: 0 4px 0 var(--accent-dark); }
.btn--accent:hover { color: var(--ink); box-shadow: 0 2px 0 var(--accent-dark); transform: translateY(2px); }
.btn--ghost { border-width: 2px; }
.chip, .badge { border-radius: var(--radius); }
.chip.is-active, .chip:hover { background: var(--navy); border-color: var(--navy); }
.eyebrow { color: var(--primary); font-family: var(--head); letter-spacing: .1em; }
.eyebrow::before { width: 10px; height: 10px; border-radius: 0; background: var(--accent); }

/* ---------- Header: vạch vàng trên cùng, menu chữ in hoa ---------- */
.topbar { background: var(--primary-dark); color: #cfe7dc; }
.site-header { border-top: 4px solid var(--accent); }
.site-header::before { background: #fff; backdrop-filter: none; -webkit-backdrop-filter: none; }
.site-header.is-scrolled { border-bottom-color: var(--line); }
.logo__name { color: var(--navy); }
.logo__name small { color: var(--primary); }
.logo__name small.is-long { max-width: 9em; } /* Lexend rộng hơn: giữ đúng 2 dòng "Vách ngăn / chống ngập" */
.header-call .icon { border-radius: var(--radius); background: var(--primary); color: #fff; }
.nav-toggle, .nav-close { border-radius: var(--radius); background: var(--navy); color: #fff; }
.main-nav a { font-family: var(--head); }
.main-nav .current-menu-item > a, .main-nav .current-menu-ancestor > a, .main-nav a:hover { color: var(--primary); }
.nav-backdrop { background: rgba(12, 42, 34, .55); }

/* ---------- Banner trang chủ: nền sáng có quầng màu nhẹ, ảnh bóng mềm + vạch vàng ---------- */
.hero { color: var(--text); background: var(--glow), linear-gradient(180deg, #fff 0%, var(--sky) 100%); border-bottom: 1px solid var(--line); }
.hero::after { display: none; }
.hero .eyebrow { color: var(--primary); }
.hero__title { color: var(--navy); }
.hero__title span { background: none; -webkit-background-clip: border-box; background-clip: border-box; color: var(--primary); } /* không gạch vàng dưới tên */
.hero__text { color: var(--text); }
.hero__trust { color: var(--ink); font-weight: 600; }
.hero__trust .icon { color: var(--primary); }
.hero .btn--light { border-color: var(--navy); color: var(--navy); background: transparent; }
.hero .btn--light:hover { background: var(--navy); color: #fff; }
.hero__media .slider { border: 0; border-radius: 10px; border-bottom: 6px solid var(--accent); box-shadow: 0 30px 60px -20px rgba(12, 42, 34, .35); }
.slider { background: var(--navy); }
.slider__nav { border-radius: var(--radius); }
.slider__dots button { border-radius: 0; background: rgba(255, 255, 255, .5); }
.slider__dots button[aria-current="true"] { border-radius: 0; }

/* ---------- Dải con số: băng xanh đậm, số vàng, nằm sát dưới banner ---------- */
.stats-bar { margin-top: 0; background: var(--navy); }
.stats-bar__inner { background: rgba(255, 255, 255, .08); border-radius: 0; box-shadow: none; }
.stat { background: var(--navy); }
.stat strong { color: var(--accent); }
.stat span { color: #b7cdc3; }

/* ---------- Tiêu đề mục: căn trái, gạch vàng ---------- */
.section-head { margin-left: 0; text-align: left; max-width: 820px; }
.section-head h2 { position: relative; padding-bottom: 14px; }
.section-head h2::after { content: ""; position: absolute; left: 0; bottom: 0; width: 64px; height: 5px; background: var(--accent); }
.section-foot { justify-content: flex-start; }
.section--alt { background: var(--bg-alt); }
.section--dark { background: var(--glow-dark), var(--navy); color: #b7cdc3; }
.section--dark .section-head p, .section--dark .usp p { color: #a8c1b6; }
.section--dark .usp__icon { background: var(--accent); color: var(--navy); }

/* ---------- Thẻ: góc vuông, viền, vạch màu khi rê chuột ---------- */
.card, .cat-card, .usp, .step, .contact-card, .product__main, .specs, .aside-card, .branch, .faq details, .tlp-cards3 > div { border-radius: var(--radius); }
.card { box-shadow: inset 0 3px 0 transparent; }
.card:hover { transform: none; border-color: var(--primary); box-shadow: inset 0 3px 0 var(--primary), var(--shadow); }
.card__cat { color: var(--primary); }
.cat-card { border-left: 5px solid var(--primary); }
.cat-card:hover { transform: none; border-left-color: var(--accent); }
.cat-card img { border-radius: var(--radius-sm); }
.usp__icon { border-radius: var(--radius); background: var(--accent); color: var(--navy); }
.step { border-top: 4px solid var(--primary); }
.step::before { display: inline-grid; place-items: center; width: 44px; height: 44px; font-size: 1.1rem; color: var(--navy); -webkit-text-stroke: 0; background: var(--accent); font-family: var(--head); }
.app, .app img { border-radius: 0; }
.app figcaption { text-align: left; background: linear-gradient(transparent, rgba(12, 42, 34, .9)); border-left: 5px solid var(--accent); }
.partners__row img { border-radius: var(--radius); }
.yt { border-radius: var(--radius); }
.pains__list li { border-radius: var(--radius); background: #fff; border: 1px solid var(--line); border-left: 5px solid #d9483b; }
.pains__list span { border-radius: var(--radius); }

/* ---------- Trang con ---------- */
.page-hero { background: var(--glow), linear-gradient(180deg, var(--sky) 0%, #fff 100%); border-bottom: 3px solid var(--accent); }
.page-hero::before { display: none; }
.breadcrumbs a:hover { color: var(--primary); }
.pagination a, .pagination span { border-radius: var(--radius); }
.product__thumbs button { border-radius: var(--radius-sm); }
.specs { border-left: 5px solid var(--primary); }
.subnav { border-bottom: 2px solid var(--accent); }
.aside-card { background: var(--glow-dark), var(--navy); border-top: 5px solid var(--accent); }

/* ---------- Nội dung dài ---------- */
.prose h2 { border-left-color: var(--accent); border-left-width: 6px; }
.prose img, .prose figure img, .table-wrap { border-radius: var(--radius); }
.prose thead th { background: var(--primary-dark); }
.prose tbody tr:nth-child(even) td { background: #f7faf8; }
.faq details[open] { border-color: var(--primary); }
.faq summary::after { border-radius: var(--radius); background: var(--accent); color: var(--navy); }
.prose .note { border-radius: var(--radius); background: #fdf6e3; border: 1px solid #efd18a; border-left: 5px solid var(--accent); }
.branch-box { border-radius: var(--radius); border-left-color: var(--accent); }
.hd-dl { border-radius: var(--radius); }

/* ---------- Form báo giá ---------- */
.quote { background: var(--bg-alt); }
.quote__card { border-radius: var(--radius); background: var(--glow-dark), var(--navy); border-top: 6px solid var(--accent); }
.quote__hotline .icon { border-radius: var(--radius); }
.quote__perks .icon { color: var(--accent); }
.quote__form { border-radius: var(--radius); }
.quote__form input, .quote__form select, .quote__form textarea { border-radius: var(--radius-sm); }
.quote__form input:focus, .quote__form select:focus, .quote__form textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(17, 112, 79, .18); }

/* ---------- Chân trang ---------- */
.site-footer { background: #08201a; border-top: 6px solid var(--accent); }
.footer-col h2 { font-family: var(--head); color: var(--accent); }
.footer-brand img { border-radius: var(--radius); }
.social a { border-radius: var(--radius); }
.branch .icon { color: var(--accent); }

/* ---------- Nút liên hệ nổi ---------- */
.mobile-cta { box-shadow: 0 -2px 0 var(--accent), 0 -6px 18px rgba(12, 42, 34, .12); }
.mobile-cta__call { background: var(--primary); color: #fff !important; }
.mobile-cta__quote { background: var(--accent); }
.mobile-cta__quote .icon { color: var(--navy); }

@media (min-width: 1024px) {
	.main-nav .menu > li > a { text-transform: uppercase; font-size: 13.5px; letter-spacing: .04em; font-weight: 600; }
	.main-nav .menu > li > a::after { height: 3px; border-radius: 0; background: var(--accent); bottom: 16px; }
	.main-nav .sub-menu { border-radius: var(--radius); border-top: 3px solid var(--primary); }
	.main-nav .sub-menu a { border-radius: var(--radius-sm); }
	.hero { padding: 64px 0 72px; }
	.hero__grid { grid-template-columns: .95fr 1.05fr; }
	.stats-bar { margin-top: 0; }
	.float-cta a { border-radius: var(--radius); }
	.float-cta__call { background: var(--primary); color: #fff !important; animation-name: vncn-pulse; }
}
@media (min-width: 1024px) and (max-width: 1279px) {
	.main-nav .menu > li > a { font-size: 12.5px; letter-spacing: .02em; }
}
@keyframes vncn-pulse { 0% { box-shadow: 0 0 0 0 rgba(17, 112, 79, .55); } 70% { box-shadow: 0 0 0 16px rgba(17, 112, 79, 0); } 100% { box-shadow: 0 0 0 0 rgba(17, 112, 79, 0); } }

/* =========================================================
   Trang chủ riêng (template-parts/front-vncn.php)
   ========================================================= */
.vn-hero { position: relative; overflow: hidden; background: var(--glow), linear-gradient(180deg, #fff 0%, var(--sky) 100%); padding: 32px 0 40px; }
.vn-hero__grid { display: grid; gap: 28px; align-items: center; }
.vn-hero__title { font-size: clamp(2rem, 6vw, 3.4rem); line-height: 1.12; color: var(--navy); margin: 6px 0 14px; }
.vn-hero__title span { display: block; color: var(--primary); }
.vn-hero__text { font-size: 1.08rem; max-width: 560px; }
.vn-hero__trust { display: flex; flex-wrap: wrap; gap: 10px; list-style: none; padding: 0; margin: 4px 0 0; }
.vn-hero__trust li { display: inline-flex; align-items: center; gap: 8px; padding: 8px 12px; background: #fff; border: 1px solid var(--line); border-radius: 999px; font-size: 14px; font-weight: 600; color: var(--ink); }
.vn-hero__trust .icon { width: 18px; height: 18px; color: var(--primary); }
.vn-hero__media { position: relative; margin: 0; padding: 18px; background: #fff; border-radius: 18px; box-shadow: 0 30px 60px -24px rgba(12, 42, 34, .35); }
.vn-hero__media img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: contain; }
.vn-badge { position: absolute; display: grid; gap: 1px; padding: 10px 14px; background: #fff; border-radius: 12px; box-shadow: 0 10px 28px rgba(12, 42, 34, .16); font-size: 12.5px; color: var(--muted); line-height: 1.3; }
.vn-badge strong { font-family: var(--head); font-size: 1.15rem; color: var(--primary); }
.vn-badge--1 { left: -6px; top: 12%; }
.vn-badge--2 { right: -6px; top: 42%; }
.vn-badge--3 { left: 10%; bottom: -14px; border-left: 4px solid var(--accent); }

.vn-more { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; color: var(--primary); text-decoration: none; }
.vn-more .icon { width: 18px; height: 18px; transition: transform .2s; }
a:hover > .vn-more .icon, .vn-more:hover .icon { transform: translateX(4px); }

/* Chọn theo vị trí */
.vn-places { display: grid; gap: 16px; }
.vn-place { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; text-decoration: none; color: inherit; transition: box-shadow .2s, transform .2s; }
.vn-place:hover { color: inherit; transform: translateY(-4px); box-shadow: var(--shadow); }
.vn-place img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.vn-place__body { padding: 16px 18px 20px; display: grid; gap: 6px; }
.vn-place h3 { margin: 0; font-size: 1.15rem; }
.vn-place p { margin: 0; color: var(--muted); font-size: 15px; }

/* Các loại vách: hàng ngang */
.vn-rows { display: grid; gap: 18px; }
.vn-row { display: grid; background: #fff; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.vn-row__media { display: block; background: #fff; }
.vn-row__media img { width: 100%; aspect-ratio: 4 / 3; object-fit: contain; padding: 12px; }
.vn-row__body { padding: 18px 20px 22px; }
.vn-row h3 { font-size: 1.3rem; margin-bottom: 8px; }
.vn-row h3 a { color: var(--ink); text-decoration: none; }
.vn-row h3 a:hover { color: var(--primary); }
.vn-checks { list-style: none; padding: 0; margin: 0 0 18px; display: grid; gap: 8px; }
.vn-checks li { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; font-weight: 600; color: var(--ink); }
.vn-checks .icon { flex: none; width: 22px; height: 22px; padding: 3px; border-radius: 50%; background: var(--sky); color: var(--primary); }
.vn-row__actions { display: flex; flex-wrap: wrap; gap: 10px; }

/* Cấu tạo */
.vn-anatomy { display: grid; gap: 28px; align-items: center; }
.vn-anatomy__media { margin: 0; padding: 16px; background: var(--bg-alt); border-radius: 18px; }
.vn-anatomy__media img { width: 100%; height: auto; }
.vn-parts { list-style: none; counter-reset: part; padding: 0; margin: 0 0 18px; display: grid; gap: 12px; }
.vn-parts li { counter-increment: part; position: relative; padding: 2px 0 2px 46px; color: var(--text); }
.vn-parts li::before { content: counter(part); position: absolute; left: 0; top: 0; width: 32px; height: 32px; display: grid; place-items: center; border-radius: 50%; background: var(--primary); color: #fff; font-family: var(--head); font-weight: 700; font-size: 14px; }

/* So sánh */
.vn-compare { display: grid; gap: 14px; }
.vn-compare__item { padding: 22px; border-radius: 14px; background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .1); }
.vn-compare__item h3 { margin-bottom: 6px; }
.vn-compare__item p { margin: 0; color: #a8c1b6; }
.vn-compare__item--best { background: #fff; border-color: #fff; }
.section--dark .vn-compare__item--best h3 { color: var(--navy); }
.vn-compare__item--best p { color: var(--text); }
.vn-compare__item .vn-compare__verdict { display: inline-block; margin: 0 0 8px; padding: 3px 10px; border-radius: 999px; font-size: 14px; font-weight: 700; }
.vn-compare__verdict.is-bad { background: rgba(217, 72, 59, .2); color: #ffb3aa; }
.vn-compare__verdict.is-mid { background: rgba(226, 164, 20, .2); color: #f3cd72; }
.vn-compare__item .vn-compare__verdict.is-good { background: var(--sky); color: var(--primary); }

/* 4 bước */
.vn-steps { list-style: none; counter-reset: st; padding: 0; margin: 0; display: grid; gap: 14px; }
.vn-steps li { counter-increment: st; padding: 20px 18px 18px; background: #fff; border-radius: 14px; border: 1px solid var(--line); display: grid; gap: 4px; }
.vn-steps li::before { content: "Bước " counter(st); font-family: var(--head); font-size: 13px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--accent-dark); }
.vn-steps strong { font-family: var(--head); font-size: 1.1rem; color: var(--ink); }
.vn-steps span { color: var(--muted); font-size: 15px; }

/* Giới thiệu + bài kiến thức */
.vn-learn { display: grid; gap: 32px; }
.vn-learn__list { background: var(--bg-alt); border-radius: 14px; padding: 20px; align-self: start; }
.vn-learn__list h2 { font-size: 1.2rem; }
.vn-learn__list ul { list-style: none; padding: 0; margin: 0 0 14px; display: grid; gap: 12px; }
.vn-learn__list li a { display: grid; grid-template-columns: 80px 1fr; gap: 12px; align-items: center; text-decoration: none; color: var(--ink); font-weight: 600; line-height: 1.35; }
.vn-learn__list li a:hover { color: var(--primary); }
.vn-learn__list img { width: 80px; height: 60px; object-fit: cover; border-radius: 8px; }

/* Trang chủ riêng: bo góc nhẹ cho cảm giác hiện đại */
.home.skin-vncn .card, .home.skin-vncn .partners__row img { border-radius: 12px; }

@media (min-width: 600px) {
	.vn-places { grid-template-columns: repeat(3, 1fr); }
	.vn-row { grid-template-columns: 260px 1fr; align-items: center; }
	.vn-compare { grid-template-columns: repeat(3, 1fr); }
	.vn-steps { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
	.vn-hero { padding: 56px 0 72px; }
	.vn-hero__grid { grid-template-columns: 1.05fr .95fr; gap: 56px; }
	.vn-row { grid-template-columns: 340px 1fr; }
	.vn-row__body { padding: 24px 32px; }
	.vn-anatomy { grid-template-columns: 1.1fr .9fr; gap: 56px; }
	.vn-steps { grid-template-columns: repeat(4, 1fr); }
	.vn-learn { grid-template-columns: minmax(0, 1fr) 340px; gap: 48px; }
	.vn-learn__list { position: sticky; top: calc(var(--header-h) + 20px); }
}
@media (max-width: 599px) {
	.vn-badge { font-size: 11.5px; padding: 8px 10px; }
	.vn-badge strong { font-size: 1rem; }
	.vn-badge--1 { left: 4px; }
	.vn-badge--2 { right: 4px; }
}