/*
Theme Name: Keo Cha Ron Epoxy Weber
Theme URI: https://example.com/
Author: TN - Aloken WP
Description: Theme gốc viết tay phong cách hiện đại học từ mihaohao.vn kết hợp nhận diện thương hiệu Weber Saint-Gobain & Tổng Kho Hồng Ngát. Dữ liệu gom trong inc/data.php, schema JSON-LD, form liên hệ lưu đơn, nút liên hệ nổi, không page builder, không jQuery.
Version: 1.0.0
Requires at least: 6.5
Tested up to: 6.9
Requires PHP: 7.4
License: GPLv2 or later
Text Domain: weber-hongngat
*/

/* ==========================================================================
   1. Tokens — Bảng màu nhận diện & Quy chuẩn hiển thị
   ========================================================================== */
:root {
	--c-primary: #0057B8;          /* Xanh dương: nút chính, link, nhãn */
	--c-primary-dark: #003F87;
	--c-secondary: #0A2A5C;        /* Xanh đậm: tiêu đề */
	--c-secondary-dark: #061A3A;
	--c-accent: #FFC20E;           /* Vàng Weber: CTA, đầu trang, điểm nhấn */
	--c-accent-hover: #F2B200;
	--c-accent-soft: #FFF8E1;
	--c-bg: #ffffff;
	--c-bg-alt: #FFF8E1;           /* Nền vàng kem nhạt */
	--c-bg-dark: #0A2A5C;
	--c-text: #1E293B;
	--c-text-muted: #5B6B82;
	--c-text-invert: #ffffff;
	--c-border: #E2E8F0;

	--f-body: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
	--f-heading: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;

	--fs-sm: 0.875rem;
	--fs-base: 1rem;
	--fs-lg: 1.125rem;
	--fs-h3: clamp(1.2rem, 1.05rem + 0.6vw, 1.45rem);
	--fs-h2: clamp(1.65rem, 1.3rem + 1.4vw, 2.35rem);
	--fs-h1: clamp(1.95rem, 1.45rem + 2.2vw, 3.15rem);

	--radius: 16px;
	--radius-sm: 8px;
	--radius-pill: 9999px;
	--shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.07);
	--shadow-lg: 0 20px 35px -10px rgba(0, 0, 0, 0.12);
	--shadow-primary: 0 10px 20px rgba(0, 87, 184, 0.25);

	--space-section: clamp(3.5rem, 2.5rem + 3.5vw, 5.5rem);
	--container: 1200px;
	--gutter: 20px;
	--header-h: 76px;
}

/* ==========================================================================
   2. Base
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--f-body); font-size: var(--fs-base); line-height: 1.65; color: var(--c-text); background: var(--c-bg); overflow-x: hidden; }
img, picture, video, svg { display: block; max-width: 100%; height: auto; }
a { color: var(--c-primary); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--c-primary-dark); }
h1, h2, h3, h4 { font-family: var(--f-heading); line-height: 1.25; margin: 0 0 0.5em; color: inherit; font-weight: 800; }
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
p { margin: 0 0 1em; }
ul, ol { padding-left: 1.2em; }
input, select, textarea, button { font: inherit; }
:focus-visible { outline: 3px solid var(--c-primary); outline-offset: 2px; }
.screen-reader-text { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(1px, 1px, 1px, 1px); white-space: nowrap; }
.skip-link:focus { position: fixed; top: 8px; left: 8px; z-index: 1000; width: auto; height: auto; clip: auto; padding: 8px 16px; background: #fff; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: var(--space-section); }
.section--alt { background: var(--c-bg-alt); }
.section--dark { background: var(--c-bg-dark); color: var(--c-text-invert); }
.section__head { max-width: 820px; margin: 0 auto 3rem; text-align: center; }
.section__eyebrow { display: inline-block; margin-bottom: 0.65rem; padding: 4px 14px; border-radius: var(--radius-pill); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; background: rgba(0, 87, 184, 0.09); color: var(--c-primary); }
.section--dark .section__eyebrow { background: rgba(255, 184, 0, 0.15); color: var(--c-accent); }
.section__head h2 { color: var(--c-secondary); font-size: var(--fs-h2); }
.section--dark .section__head h2 { color: #ffffff; }
.section__lead { color: var(--c-text-muted); font-size: var(--fs-lg); margin: 0 auto; line-height: 1.6; }
.section--dark .section__lead { color: rgba(255, 255, 255, 0.85); }
.grid { display: grid; gap: 24px; grid-template-columns: 1fr; }

/* ==========================================================================
   3. Nút & Nhãn
   ========================================================================== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 12px 24px; border: 2px solid transparent; border-radius: var(--radius-pill); font-weight: 700; text-decoration: none; cursor: pointer; transition: transform 0.2s, background 0.2s, color 0.2s, box-shadow 0.2s; white-space: nowrap; }
.btn:hover { transform: translateY(-2px); }
.btn--lg { min-height: 52px; padding: 14px 28px; font-size: 1.05rem; }
.btn--sm { min-height: 40px; padding: 8px 18px; font-size: 0.88rem; }
.btn--xs { min-height: 34px; padding: 6px 14px; font-size: 0.8rem; }
.btn--primary { background: var(--c-primary); color: #fff; box-shadow: var(--shadow-primary); }
.btn--primary:hover { background: var(--c-primary-dark); color: #fff; }
.btn--accent { background: var(--c-accent); color: var(--c-secondary-dark); box-shadow: 0 8px 16px rgba(255, 184, 0, 0.3); }
.btn--accent:hover { background: var(--c-accent-hover); color: var(--c-secondary-dark); }
.btn--white { background: #ffffff; color: var(--c-secondary); box-shadow: var(--shadow); }
.btn--white:hover { background: #f8fafc; color: var(--c-primary); }
.btn--ghost { border-color: var(--c-border); color: var(--c-text); background: #ffffff; }
.btn--ghost:hover { border-color: var(--c-primary); color: var(--c-primary); }
.btn-group { display: flex; flex-wrap: wrap; gap: 12px; }

/* ==========================================================================
   4. Header & Navigation
   ========================================================================== */
.site-header { position: sticky; top: 0; z-index: 100; background: var(--c-primary); border-bottom: 3px solid var(--c-accent); box-shadow: 0 4px 14px rgba(0, 63, 135, 0.3); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: var(--header-h); }
.site-logo { display: flex; align-items: center; gap: 10px; min-width: 0; font-family: var(--f-heading); font-size: clamp(1.05rem, 0.95rem + 0.6vw, 1.25rem); font-weight: 800; line-height: 1.15; color: #ffffff; text-decoration: none; text-transform: uppercase; letter-spacing: -0.01em; max-width: 240px; }
.site-logo img { max-height: 48px; width: auto; }
.site-logo { flex-direction: column; align-items: flex-start; gap: 2px; max-width: none; }
.site-logo__name { font-size: clamp(1.25rem, 1.05rem + 0.9vw, 1.6rem); letter-spacing: 0.01em; white-space: nowrap; }
.site-logo__name::first-letter { color: inherit; }
.site-logo__tag { font-size: 0.72rem; font-weight: 600; text-transform: none; letter-spacing: 0; color: var(--c-accent); white-space: nowrap; }
.primary-nav { position: fixed; inset: var(--header-h) 0 0 0; background: #fff; padding: 20px var(--gutter) 40px; overflow-y: auto; transform: translateX(100%); transition: transform 0.25s ease; }
.nav-open .primary-nav { transform: none; }
.primary-nav ul { list-style: none; margin: 0; padding: 0; }
.primary-nav a { display: block; padding: 14px 0; color: var(--c-text); font-weight: 600; text-decoration: none; border-bottom: 1px solid var(--c-border); }
.primary-nav a:hover, .primary-nav .current-menu-item > a { color: var(--c-primary); }
.header-cta { display: none; }
.nav-toggle { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border: 0; background: transparent; cursor: pointer; }
.nav-toggle__bar, .nav-toggle__bar::before, .nav-toggle__bar::after { display: block; width: 24px; height: 2px; background: #ffffff; position: relative; transition: transform 0.2s; }
.nav-toggle__bar::before, .nav-toggle__bar::after { content: ""; position: absolute; left: 0; }
.nav-toggle__bar::before { top: -7px; }
.nav-toggle__bar::after { top: 7px; }
.nav-open .nav-toggle__bar { background: transparent; }
.nav-open .nav-toggle__bar::before { transform: translateY(7px) rotate(45deg); }
.nav-open .nav-toggle__bar::after { transform: translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   5. Khối 1: Hero Banner (Học phong cách Hảo Hảo: rực rỡ, năng động)
   ========================================================================== */
.hero { position: relative; background: linear-gradient(120deg, #FFDD55 0%, var(--c-accent) 48%, #FFAE00 100%); color: var(--c-secondary); padding-block: clamp(40px, 5vw, 80px); overflow: hidden; border-bottom: 6px solid var(--c-primary); }
.hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 75% 50%, rgba(255, 255, 255, 0.55), transparent 42%), repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.12) 0 2px, transparent 2px 22px); pointer-events: none; }
.hero::after { content: ""; position: absolute; width: 520px; height: 520px; left: -220px; bottom: -300px; border-radius: 50%; border: 48px solid rgba(0, 87, 184, 0.08); pointer-events: none; }
.hero__container { position: relative; z-index: 2; display: grid; gap: 36px; align-items: center; }
.hero__content { max-width: 680px; }
.hero__badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; border-radius: var(--radius-pill); background: var(--c-secondary); color: #ffffff; box-shadow: 0 6px 16px rgba(10, 42, 92, 0.2); font-size: 0.85rem; font-weight: 700; margin-bottom: 1.25rem; }
.hero__badge-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--c-accent); box-shadow: 0 0 10px var(--c-accent); flex-shrink: 0; }
.hero__title { font-size: var(--fs-h1); font-weight: 800; line-height: 1.18; margin-bottom: 1rem; color: var(--c-secondary); }
.hero__lead { font-size: var(--fs-lg); line-height: 1.6; color: #24324A; margin-bottom: 2rem; }
.hero__cta-group { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 2.25rem; }
.hero__trust-strip { display: flex; align-items: center; gap: 20px; padding: 14px 20px; background: rgba(255, 255, 255, 0.6); border-radius: var(--radius); border: 1px solid rgba(255, 255, 255, 0.9); max-width: fit-content; }
.hero__trust-item { display: flex; flex-direction: column; }
.hero__trust-item strong { font-size: 1.2rem; font-weight: 800; color: var(--c-primary); line-height: 1.15; }
.hero__trust-item span { font-size: 0.78rem; color: #3B4A63; }
.hero__trust-divider { width: 1px; height: 32px; background: rgba(10, 42, 92, 0.18); }

.hero__visual { display: flex; justify-content: center; }
.hero__stage { position: relative; width: 100%; max-width: 470px; aspect-ratio: 1 / 0.92; background: #ffffff; border-radius: 32px; box-shadow: 0 30px 60px -22px rgba(10, 42, 92, 0.5); overflow: hidden; }
.hero__stage::before { content: ""; position: absolute; inset: auto 0 0 0; height: 26%; background: linear-gradient(180deg, transparent, #EEF5FF); }
.hero__bag { position: absolute; bottom: 5%; width: 44%; }
.hero__bag img, .hero__tube img { width: 100%; height: auto; }
.hero__bag--1 { left: 3%; transform: rotate(-6deg); }
.hero__bag--2 { right: 3%; transform: rotate(6deg); }
.hero__tube { position: absolute; left: 50%; bottom: 4%; width: 27%; transform: translateX(-50%); z-index: 2; filter: drop-shadow(0 16px 18px rgba(10, 42, 92, 0.3)); }
.hero__sticker { position: absolute; top: 5%; right: 5%; z-index: 3; width: 92px; height: 92px; border-radius: 50%; display: grid; place-content: center; text-align: center; background: var(--c-primary); color: #ffffff; font-size: 0.78rem; line-height: 1.15; border: 4px solid var(--c-accent); transform: rotate(10deg); box-shadow: var(--shadow-primary); }
.hero__sticker strong { font-size: 1.35rem; }
.badge-chip { background: #F1F5F9; padding: 8px 12px; border-radius: var(--radius-sm); font-size: 0.85rem; font-weight: 600; color: var(--c-secondary); text-align: left; border-left: 3px solid var(--c-primary); }

/* ==========================================================================
   6. Khối 2: Lý do chọn ron epoxy
   ========================================================================== */
.feature-card { background: #ffffff; padding: 28px 24px; border-radius: var(--radius); border: 1px solid var(--c-border); box-shadow: var(--shadow); transition: transform 0.2s, box-shadow 0.2s; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(0, 87, 184, 0.2); }
.feature-card__icon { font-size: 2.2rem; margin-bottom: 16px; line-height: 1; }
.feature-card__title { font-size: 1.15rem; color: var(--c-secondary); margin-bottom: 10px; }
.feature-card__text { font-size: 0.92rem; color: var(--c-text-muted); line-height: 1.6; margin: 0; }

/* ==========================================================================
   7. Khối 3: Sản phẩm chủ lực mũi nhọn (Epoxy)
   ========================================================================== */
.product-card { display: flex; flex-direction: column; background: #ffffff; border-radius: var(--radius); border: 2px solid var(--c-border); box-shadow: var(--shadow); overflow: hidden; transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s; }
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--c-primary); }
.product-card__header { padding: 24px 24px 18px; background: linear-gradient(180deg, var(--c-accent-soft) 0%, #ffffff 100%); border-bottom: 1px solid var(--c-border); position: relative; }
.product-card__tag { display: inline-block; font-size: 0.72rem; font-weight: 700; text-transform: uppercase; padding: 3px 10px; border-radius: var(--radius-pill); background: var(--c-primary); color: #fff; margin-bottom: 8px; }
.product-card__name { font-size: 1.55rem; color: var(--c-secondary); margin-bottom: 4px; }
.product-card__subtitle { font-size: 0.88rem; color: var(--c-text-muted); margin: 0; }
.product-card__body { padding: 20px 24px; flex: 1; display: flex; flex-direction: column; gap: 14px; }
.product-card__meta-item { font-size: 0.9rem; line-height: 1.5; }
.meta-label { font-weight: 700; color: var(--c-secondary); margin-right: 4px; }
.meta-val { color: var(--c-text); }
.product-card__features { list-style: none; padding: 0; margin: 8px 0; display: flex; flex-direction: column; gap: 8px; }
.product-card__features li { display: flex; align-items: flex-start; gap: 10px; font-size: 0.88rem; color: var(--c-text); line-height: 1.45; }
.product-card__features svg { flex-shrink: 0; color: var(--c-primary); margin-top: 2px; }
.product-card__notice { background: #FEF3C7; border-left: 3px solid #D97706; padding: 8px 12px; border-radius: var(--radius-sm); font-size: 0.8rem; color: #92400E; margin-top: auto; }
.product-card__footer { padding: 18px 24px 24px; border-top: 1px solid var(--c-border); background: #FAFBFD; display: flex; flex-direction: column; gap: 12px; }
.product-card__price { font-size: 1.15rem; font-weight: 800; color: var(--c-primary); }
.product-card__actions { display: flex; gap: 10px; }

.spotlight { display: grid; gap: 28px; padding: 22px; background: #ffffff; border-radius: 28px; border: 2px solid var(--c-border); box-shadow: var(--shadow-lg); }
.spotlight__media { position: relative; display: grid; place-items: center; min-height: 340px; padding: 48px 20px 24px; border-radius: 20px; background: radial-gradient(circle at 50% 45%, #ffffff 0%, var(--c-accent-soft) 55%, #FFEBA6 100%); }
.spotlight__media img { max-height: 420px; width: auto; filter: drop-shadow(0 18px 20px rgba(10, 42, 92, 0.25)); }
.spotlight__tag { position: absolute; top: 14px; left: 14px; padding: 4px 12px; border-radius: var(--radius-pill); background: var(--c-primary); color: #ffffff; font-size: 0.72rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.03em; }
.spotlight__body { display: flex; flex-direction: column; gap: 10px; }
.spotlight__name { font-size: clamp(1.7rem, 1.4rem + 1vw, 2.2rem); color: var(--c-secondary); margin: 0; }
.spotlight__subtitle { color: var(--c-text-muted); margin: 0 0 4px; font-weight: 600; }
.spotlight__meta { margin: 0; font-size: 0.95rem; line-height: 1.55; }
.spotlight__meta strong { color: var(--c-secondary); }
.spotlight__specs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin: 6px 0; }
.spotlight__specs div { padding: 10px 14px; border-radius: 12px; background: #EEF5FF; border: 1px solid #D6E6FA; }
.spotlight__specs dt { font-size: 0.75rem; color: var(--c-text-muted); font-weight: 600; }
.spotlight__specs dd { margin: 0; font-weight: 800; color: var(--c-primary); }
.spotlight__actions { margin-top: 8px; }

.kdg-grid { display: grid; gap: 16px; grid-template-columns: repeat(2, 1fr); }
.kdg-card { display: flex; flex-direction: column; background: #ffffff; border-radius: var(--radius); border: 2px solid var(--c-border); box-shadow: var(--shadow); overflow: hidden; transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s; }
.kdg-card:hover { transform: translateY(-4px); border-color: var(--c-accent); box-shadow: var(--shadow-lg); }
.kdg-card__media { position: relative; display: grid; place-items: center; height: 230px; padding: 30px 14px 12px; background: #ffffff; border-bottom: 4px solid var(--c-accent); }
.kdg-card__media img { width: 100%; height: 100%; object-fit: contain; }
.kdg-card__label { position: absolute; top: 10px; left: 10px; padding: 3px 10px; border-radius: var(--radius-pill); background: var(--c-primary); color: #ffffff; font-size: 0.7rem; font-weight: 700; }
.kdg-card__body { display: flex; flex-direction: column; gap: 6px; flex: 1; padding: 14px 16px 18px; }
.kdg-card__name { margin: 0; font-size: 1.12rem; color: var(--c-secondary); }
.kdg-card__format { margin: 0; font-size: 0.8rem; font-weight: 700; color: var(--c-primary); }
.kdg-card__scope { margin: 0 0 8px; flex: 1; font-size: 0.85rem; line-height: 1.5; color: var(--c-text-muted); }
.kdg-card__cta { align-self: flex-start; }
.kdg-more { margin: 32px 0 0; text-align: center; }

/* ==========================================================================
   8. Khối 4: Bảng chọn nhanh
   ========================================================================== */
.selector-table-wrap { overflow-x: auto; background: #ffffff; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--c-border); }
.selector-table { width: 100%; border-collapse: collapse; min-width: 680px; }
.selector-table th { background: var(--c-secondary); color: #ffffff; padding: 16px 20px; font-size: 0.92rem; font-weight: 700; text-align: left; }
.selector-table td { padding: 18px 20px; border-bottom: 1px solid var(--c-border); vertical-align: middle; }
.col-space { width: 25%; font-size: 0.95rem; color: var(--c-secondary); }
.col-need { width: 38%; font-size: 0.9rem; color: var(--c-text-muted); }
.col-rec { width: 22%; }
.rec-badge { display: inline-block; font-weight: 800; color: var(--c-primary); font-size: 1.05rem; }
.rec-type { display: block; font-size: 0.78rem; color: var(--c-text-muted); }
.col-action { width: 15%; text-align: right; }

/* ==========================================================================
   9. Khối 5: Quy trình thi công 4 bước
   ========================================================================== */
.step-card { position: relative; background: #ffffff; padding: 32px 24px 24px; border-radius: var(--radius); border: 1px solid var(--c-border); box-shadow: var(--shadow); }
.step-card__num { position: absolute; top: -16px; left: 24px; width: 36px; height: 36px; border-radius: 50%; background: var(--c-primary); color: #fff; font-weight: 800; display: grid; place-items: center; font-size: 0.95rem; box-shadow: var(--shadow-primary); }
.step-card__title { font-size: 1.15rem; color: var(--c-secondary); margin-bottom: 10px; margin-top: 6px; }
.step-card__text { font-size: 0.9rem; color: var(--c-text-muted); line-height: 1.6; margin: 0; }
.process-tips { margin-top: 32px; display: flex; align-items: flex-start; gap: 16px; padding: 20px 24px; border-radius: var(--radius); background: #EFF6FF; border: 1px solid #BFDBFE; color: #1E3A8A; font-size: 0.92rem; }
.process-tips__icon { font-size: 1.6rem; line-height: 1; }

/* ==========================================================================
   12. Khối 8: Đánh giá khách hàng (Review cards)
   ========================================================================== */
.review-card { background: #ffffff; border-radius: var(--radius); padding: 28px 24px; border: 1px solid var(--c-border); box-shadow: var(--shadow); display: flex; flex-direction: column; justify-content: space-between; }
.review-card__stars { color: var(--c-accent); font-size: 1.25rem; letter-spacing: 2px; margin-bottom: 12px; }
.review-card__text { font-size: 0.95rem; line-height: 1.6; color: var(--c-text); font-style: italic; margin: 0 0 20px 0; border: 0; padding: 0; background: none; }
.review-card__author { display: flex; align-items: center; gap: 12px; border-top: 1px solid var(--c-border); padding-top: 14px; }
.author-avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--c-primary); color: #fff; font-weight: 800; display: grid; place-items: center; font-size: 1.1rem; flex-shrink: 0; }
.author-info { display: flex; flex-direction: column; }
.author-name { font-size: 0.95rem; color: var(--c-secondary); }
.author-role { font-size: 0.78rem; color: var(--c-text-muted); }
.case-card { position: relative; display: flex; flex-direction: column; padding: 28px 24px; background: #ffffff; border-radius: var(--radius); border: 1px solid var(--c-border); border-top: 5px solid var(--c-accent); box-shadow: var(--shadow); }
.case-card__icon { font-size: 2rem; line-height: 1; margin-bottom: 12px; }
.case-card__label { margin: 0 0 4px; font-size: 0.72rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-text-muted); }
.case-card__label--fix { margin-top: 14px; color: var(--c-primary); }
.case-card__problem { margin: 0; font-size: 1.12rem; color: var(--c-secondary); }
.case-card__product { margin: 0 0 8px; font-weight: 800; color: var(--c-primary); }
.case-card__text { margin: 0; font-size: 0.9rem; line-height: 1.6; color: var(--c-text-muted); }
.case-invite { margin: 28px 0 0; text-align: center; font-weight: 600; }
.reviews-guarantee { margin-top: 48px; display: grid; gap: 24px; grid-template-columns: 1fr; padding: 24px; background: #F8FAFC; border-radius: var(--radius); border: 1px solid var(--c-border); }
.guarantee-item { display: flex; align-items: flex-start; gap: 16px; }
.guarantee-icon { font-size: 2rem; line-height: 1; }
.guarantee-item strong { display: block; font-size: 1rem; color: var(--c-secondary); margin-bottom: 4px; }
.guarantee-item p { margin: 0; font-size: 0.88rem; color: var(--c-text-muted); line-height: 1.5; }

/* ==========================================================================
   13. Khối 9 & 10: FAQ & Form
   ========================================================================== */
.faq { max-width: 860px; margin-inline: auto; }
.faq__item { border-bottom: 1px solid var(--c-border); }
.faq__q { display: flex; justify-content: space-between; align-items: center; gap: 16px; width: 100%; padding: 20px 0; border: 0; background: none; text-align: left; font-weight: 700; font-size: 1.05rem; color: var(--c-secondary); cursor: pointer; }
.faq__q::after { content: "+"; font-size: 1.6rem; line-height: 1; color: var(--c-primary); transition: transform 0.2s; }
.faq__q[aria-expanded="true"]::after { transform: rotate(45deg); }
.faq__a { padding-bottom: 20px; color: var(--c-text-muted); font-size: 0.95rem; line-height: 1.65; }
.faq__a[hidden] { display: none; }

.contact-quick-list { display: flex; flex-direction: column; gap: 16px; margin: 20px 0; }
.contact-quick-item { display: flex; align-items: flex-start; gap: 12px; font-size: 0.92rem; }
.contact-quick-item .icon { font-size: 1.2rem; line-height: 1; flex-shrink: 0; }
.contact-quick-item strong { display: block; color: #ffffff; }
.contact-quick-item span { color: rgba(255, 255, 255, 0.8); }

.form { display: grid; gap: 16px; padding: 28px; background: #ffffff; color: var(--c-text); border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.form__row { display: grid; gap: 16px; }
.form label { display: block; margin-bottom: 6px; font-weight: 600; font-size: var(--fs-sm); color: var(--c-secondary); }
.form input, .form select, .form textarea { width: 100%; min-height: 48px; padding: 10px 14px; border: 1.5px solid var(--c-border); border-radius: var(--radius-sm); background: #fff; color: var(--c-text); }
.form textarea { min-height: 90px; resize: vertical; }
.form input:focus, .form select:focus, .form textarea:focus { border-color: var(--c-primary); outline: none; box-shadow: 0 0 0 3px rgba(0, 87, 184, 0.12); }
.form__hp { position: absolute; left: -9999px; }
.notice { padding: 14px 18px; border-radius: var(--radius-sm); margin-bottom: 16px; font-weight: 600; }
.notice--ok { background: #e8f6ec; color: #1d6b35; }
.notice--err { background: #fdecec; color: #9b1c1c; }

/* ==========================================================================
   14. CTA cuối trang & Footer
   ========================================================================== */
.cta-band { padding-block: 56px; background: linear-gradient(135deg, var(--c-primary), var(--c-secondary)); color: #fff; text-align: center; }
.cta-band h2 { color: #fff; font-size: var(--fs-h2); margin-bottom: 12px; }
.cta-band p { font-size: var(--fs-lg); max-width: 800px; margin: 0 auto 24px; opacity: 0.95; }
.cta-band .btn-group { justify-content: center; }

.site-footer { padding-top: 60px; background: var(--c-secondary-dark); color: rgba(255, 255, 255, 0.78); font-size: var(--fs-sm); }
.site-footer a { color: inherit; text-decoration: none; }
.site-footer a:hover { color: #ffffff; text-decoration: underline; }
.site-footer h3 { color: #ffffff; font-size: 1.15rem; margin-bottom: 16px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 10px; line-height: 1.6; }
.site-footer__bottom { margin-top: 48px; padding-block: 22px; padding-bottom: 88px; border-top: 1px solid rgba(255, 255, 255, 0.1); text-align: center; font-size: 0.85rem; }

/* ==========================================================================
   15. Nút liên hệ nổi (Floating Contacts)
   ========================================================================== */
.float-contact { position: fixed; left: 0; right: 0; bottom: 0; z-index: 200; display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; background: #ffffff; box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.12); }
.float-contact__btn { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; min-height: 60px; font-size: 0.75rem; font-weight: 700; color: #fff; text-decoration: none; }
.float-contact__btn svg { width: 22px; height: 22px; fill: currentColor; }
.float-contact__phone { background: var(--c-accent); color: var(--c-secondary-dark) !important; }
.float-contact__zalo { background: #0068ff; }
.float-contact__mess { background: #0084ff; }

/* ==========================================================================
   16. Responsive Breakpoints
   ========================================================================== */
@media (max-width: 480px) {
	.hero__trust-strip { gap: 10px; padding: 12px 14px; max-width: 100%; }
	.hero__trust-item strong { font-size: 1.02rem; white-space: nowrap; }
	.hero__trust-item span { font-size: 0.7rem; }
	.hero__stage { aspect-ratio: 1 / 1; }
	.kdg-card__media { height: 190px; padding: 30px 6px 8px; }
	.kdg-card__body { padding: 12px 12px 16px; }
	.spotlight__media { min-height: 280px; }
	.spotlight__media img { max-height: 320px; }
}

@media (min-width: 768px) {
	.grid--2 { grid-template-columns: repeat(2, 1fr); }
	.grid--3 { grid-template-columns: repeat(2, 1fr); }
	.grid--4 { grid-template-columns: repeat(2, 1fr); }
	.split { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
	.hero__container { grid-template-columns: 1.25fr 0.95fr; }
	.spotlight { grid-template-columns: 360px 1fr; padding: 36px; gap: 40px; }
	.spotlight__specs { grid-template-columns: repeat(4, 1fr); }
	.kdg-grid { grid-template-columns: repeat(3, 1fr); }
	.reviews-guarantee { grid-template-columns: repeat(3, 1fr); }
	.site-footer .grid { grid-template-columns: 2fr 1fr 1fr; }
	.form__row { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 1024px) {
	.grid--3 { grid-template-columns: repeat(3, 1fr); }
	.grid--4 { grid-template-columns: repeat(4, 1fr); }
	.kdg-grid { grid-template-columns: repeat(5, 1fr); }
	.nav-toggle { display: none; }
	.primary-nav { position: static; transform: none; padding: 0; overflow: visible; background: none; }
	.primary-nav > div > ul, .primary-nav > ul { display: flex; gap: 2px; }
	.primary-nav a { padding: 8px 11px; border: 0; border-radius: var(--radius-pill); color: #ffffff; font-weight: 700; font-size: 0.93rem; white-space: nowrap; }
	.primary-nav a:hover, .primary-nav .current-menu-item > a { background: rgba(255, 255, 255, 0.16); color: #ffffff; }
	.header-cta { display: inline-flex; background: var(--c-accent); color: var(--c-secondary); box-shadow: none; white-space: nowrap; }
	.header-cta:hover { background: #ffffff; color: var(--c-primary); }
	.float-contact { left: auto; right: 24px; bottom: 24px; grid-auto-flow: row; gap: 14px; background: none; box-shadow: none; }
	.float-contact__btn { width: 56px; height: 56px; min-height: 0; border-radius: 50%; box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2); transition: transform 0.2s; }
	.float-contact__btn:hover { transform: scale(1.1); }
	.float-contact__btn span { display: none; }
	.site-footer__bottom { padding-bottom: 22px; }
}

@media (prefers-reduced-motion: reduce) {
	*, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}