/* SAS Render v2, giao diện tối theo trang portfolio cũ (anh Sang chốt 26/10/2026).
   Nền #0d0d0d, chữ #f2efe9, phụ #9a958c, đường kẻ #2a2927, nhấn vàng #c9a66b, logo/nút chính đỏ #e3120b.
   Font Be Vietnam Pro tự host (300/400/500/800). Chỉ animate transform/opacity. */
:root {
  --bg: #0d0d0d;
  --bg-2: #151515;
  --bg-3: #1c1b1a;
  --fg: #f2efe9;
  --fg-2: #cfcac0;
  --mut: #9a958c;
  --line: #2a2927;
  --line-2: #3a3936;
  --acc: #c9a66b;
  --red: #e3120b;
  --red-2: #c40f09;
  --focus: #c9a66b;
  --sans: "Be Vietnam Pro", "Segoe UI", sans-serif;
  --pad: clamp(20px, 4vw, 64px);
  --max: 1440px;
  --ease: cubic-bezier(0.23, 1, 0.32, 1);
}
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 110px; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 300 17px/1.65 var(--sans); -webkit-font-smoothing: antialiased; }
html.menu-open, html.menu-open body, html.lb-open body { overflow: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-underline-offset: 3px; text-decoration-thickness: 1px; }
p { margin: 0 0 1em; }
strong, b { font-weight: 500; }
h1, h2, h3 { font-weight: 300; line-height: 1.08; letter-spacing: -0.015em; margin: 0 0 0.5em; text-wrap: balance; }
h1 { font-size: clamp(40px, 7vw, 108px); line-height: 1.02; letter-spacing: -0.02em; }
h2 { font-size: clamp(30px, 4.6vw, 64px); }
h3 { font-size: clamp(20px, 1.8vw, 24px); font-weight: 400; letter-spacing: 0; }
.h3 { font-size: clamp(22px, 2vw, 28px); font-weight: 400; letter-spacing: 0; }
.lead { font-size: clamp(16px, 1.3vw, 19px); color: var(--fg-2); max-width: 60ch; }
.eyebrow { font-size: 12px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--acc); margin: 0 0 22px; font-weight: 500; }
.muted { color: var(--mut); }
.small { font-size: 14px; }
code { font-size: 0.9em; background: var(--bg-3); padding: 1px 5px; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }
.section { padding: clamp(70px, 10vw, 150px) 0; }
.section + .section { border-top: 1px solid var(--line); }
.section-tight { margin-top: 64px; }
.num, .price, table, .sum-table, .ref { font-variant-numeric: lining-nums tabular-nums; }

:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
.skip { position: absolute; left: 12px; top: -60px; background: var(--fg); color: #000; padding: 10px 16px; z-index: 200; }
.skip:focus { top: 12px; }

/* Nút: viền mảnh, chữ hoa giãn */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 48px;
  padding: 14px 28px; border: 1px solid var(--fg); background: transparent; color: var(--fg);
  font: 500 12px/1.2 var(--sans); letter-spacing: 0.18em; text-transform: uppercase; text-decoration: none; cursor: pointer;
  transition: transform 160ms var(--ease), background-color 200ms var(--ease), color 200ms var(--ease), border-color 200ms var(--ease);
}
.btn:hover { background: var(--fg); color: #000; }
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--red); border-color: var(--red); color: #fff; }
.btn-primary:hover { background: var(--red-2); border-color: var(--red-2); color: #fff; }
.btn[disabled] { opacity: 0.6; cursor: progress; }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.link-arrow { font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; font-weight: 500; text-decoration: none; border-bottom: 1px solid var(--acc); padding-bottom: 4px; }
.link-arrow:hover { color: var(--acc); }

/* Header cố định, trong suốt trên nền gradient */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 60; transition: background-color 200ms var(--ease); }
.site-header.is-solid { background: rgba(13,13,13,.96); border-bottom: 1px solid var(--line); }
.site-header.is-solid::before { opacity: 0; }
.site-header::before { content: ""; position: absolute; inset: 0 0 -60px; background: linear-gradient(180deg, rgba(13,13,13,.92), rgba(13,13,13,.55) 60%, rgba(13,13,13,0)); pointer-events: none; z-index: -1; }
.site-header .wrap { display: flex; align-items: center; gap: 32px; min-height: 96px; max-width: none; }
.brand { text-decoration: none; margin-right: auto; display: inline-flex; align-items: baseline; gap: 10px; }
.brand b { font: 800 clamp(34px, 3.4vw, 56px)/1 var(--sans); letter-spacing: 0.12em; color: var(--red); text-shadow: 0 1px 10px rgba(0,0,0,.45); }
.brand span { font: 400 11px/1 var(--sans); letter-spacing: 0.3em; text-transform: uppercase; color: var(--fg-2); }
.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 28px; align-items: center; }
.site-nav a { text-decoration: none; font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 500; text-shadow: 0 1px 10px rgba(0,0,0,.75); transition: opacity 160ms var(--ease); }
.site-nav a:hover { opacity: 0.65; }
.site-nav a[aria-current="page"] { color: var(--acc); }
.site-header .header-cta { min-height: 42px; padding: 11px 20px; }
.nav-toggle { display: none; background: none; border: 0; color: var(--fg); font: 500 12px var(--sans); letter-spacing: 0.14em; text-transform: uppercase; cursor: pointer; min-height: 44px; padding: 8px 4px; position: relative; z-index: 2; }
@media (max-width: 1100px) {
  .nav-toggle { display: inline-flex; align-items: center; }
  .site-header .header-cta { display: none; }
  .site-nav { position: fixed; inset: 0; background: var(--bg); display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: opacity 170ms var(--ease), visibility 170ms; z-index: 1; }
  .site-nav.is-open { opacity: 1; visibility: visible; }
  .site-nav ul { flex-direction: column; gap: 18px; }
  .site-nav a { font-size: 20px; }
  .site-nav .nav-cta { margin-top: 14px; }
  .site-nav .nav-cta a { font-size: 12px; }
}
@media (min-width: 1101px) { .site-nav .nav-cta { display: none; } }

/* Hero toàn màn hình, trượt ảnh cross-fade */
.hero-full { position: relative; height: 100vh; height: 100svh; min-height: 600px; overflow: hidden; background: #000; }
.hero-full .slide { position: absolute; inset: 0; margin: 0; opacity: 0; transition: opacity 1.6s ease-out; }
.hero-full .slide.on { opacity: 1; }
.hero-full .slide img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.06); transition: transform 9s linear; }
.hero-full .slide.on img { transform: scale(1); }
.hero-full::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(0,0,0,.62), rgba(0,0,0,.18) 55%, rgba(0,0,0,0) 75%), linear-gradient(180deg, rgba(0,0,0,.45), rgba(0,0,0,.12) 38%, rgba(0,0,0,.85)); pointer-events: none; }
.hero-full .txt, .page-hero .wrap { text-shadow: 0 1px 18px rgba(0,0,0,.45); }
.hero-full .txt { position: absolute; z-index: 2; left: var(--pad); right: var(--pad); bottom: 8vh; }
.hero-full h1 { max-width: 15ch; }
.hero-full .lead { color: #e2ddd4; }
.hero-meta { font-size: 14px; color: var(--fg-2); margin-top: 18px; }
.hero-dots { position: absolute; z-index: 3; right: var(--pad); bottom: 8vh; display: flex; gap: 6px; }
.hero-dots button { width: 34px; height: 34px; background: none; border: 0; cursor: pointer; padding: 0; display: grid; place-items: center; }
.hero-dots button::before { content: ""; width: 22px; height: 2px; background: rgba(242,239,233,.4); transition: background-color 200ms; }
.hero-dots button[aria-current="true"]::before { background: var(--fg); }
@media (max-width: 700px) { .hero-dots { display: none; } }

/* Hero trang con: dải ảnh + chữ trên gradient */
.page-hero { position: relative; min-height: 72vh; display: flex; align-items: flex-end; overflow: hidden; background: #000; }
.page-hero .shot { position: absolute; inset: 0; }
.page-hero .shot img { width: 100%; height: 100%; object-fit: cover; }
.page-hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.5), rgba(0,0,0,.2) 40%, rgba(0,0,0,.88)); }
.page-hero .wrap { position: relative; z-index: 2; width: 100%; padding-bottom: 8vh; padding-top: 140px; }
.page-head { padding-top: 160px; }

/* Ảnh */
.shot { position: relative; margin: 0; overflow: hidden; background: #1a1a1a; }
.shot img { width: 100%; height: 100%; object-fit: cover; }
.sample-tag { position: absolute; left: 12px; top: 12px; z-index: 2; background: rgba(0,0,0,.72); color: var(--fg); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; padding: 4px 9px; }
.shot figcaption { font-size: 14px; color: var(--mut); padding: 10px 0 0; background: var(--bg); }

/* Thẻ dịch vụ dọc 4 cột, hover zoom */
.services { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 60px; }
.svc { position: relative; aspect-ratio: 3 / 4; overflow: hidden; text-decoration: none; display: block; background: #1a1a1a; }
.svc .shot { position: absolute; inset: 0; }
.svc img { transition: transform 1.2s var(--ease); }
.svc:hover img { transform: scale(1.07); }
.svc::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,.85)); }
.svc .label { position: absolute; z-index: 2; left: 20px; right: 20px; bottom: 20px; }
.svc .label h3 { margin: 0; font-size: 22px; font-weight: 300; }
.svc .label small { display: block; font-size: 13px; color: var(--fg-2); letter-spacing: 0.04em; margin-top: 4px; }
@media (max-width: 900px) { .services { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .services { grid-template-columns: 1fr; } }

/* Case study lưới ảnh lớn */
.cases { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 60px; }
.case { display: block; text-decoration: none; }
.case .shot { aspect-ratio: 4 / 5; }
.case.wide { grid-column: span 3; }
.case.wide .shot { aspect-ratio: 21 / 9; }
.case img { transition: transform 1.2s var(--ease); }
.case:hover img { transform: scale(1.05); }
.case h3 { margin: 16px 0 2px; font-size: 22px; font-weight: 300; }
.case p { color: var(--mut); font-size: 14px; margin: 0; }
@media (max-width: 900px) { .cases { grid-template-columns: 1fr; } .case.wide { grid-column: auto; } .case.wide .shot { aspect-ratio: 4 / 3; } }

/* Gallery masonry + bộ lọc */
.filters { display: flex; gap: 10px; flex-wrap: wrap; margin: 44px 0 30px; }
.filters button { background: none; border: 1px solid var(--line-2); color: var(--fg-2); padding: 10px 20px; min-height: 44px; font: 500 12px var(--sans); letter-spacing: 0.16em; text-transform: uppercase; cursor: pointer; transition: border-color 200ms, color 200ms; }
.filters button[aria-pressed="true"], .filters button:hover { border-color: var(--fg); color: var(--fg); }
.masonry { columns: 3; column-gap: 14px; }
.masonry .shot { break-inside: avoid; margin-bottom: 14px; display: block; }
.masonry a { display: block; text-decoration: none; }
.masonry img { transition: transform 1s var(--ease); }
.masonry a:hover img { transform: scale(1.04); }
.masonry .shot figcaption { padding: 8px 0 4px; }
@media (max-width: 900px) { .masonry { columns: 2; } }
@media (max-width: 520px) { .masonry { columns: 1; } }

/* Lightbox */
.lb { position: fixed; inset: 0; z-index: 100; background: rgba(0,0,0,.95); display: flex; align-items: center; justify-content: center; padding: 4vw; }
.lb img { max-width: 100%; max-height: 86vh; width: auto; height: auto; object-fit: contain; }
.lb p { position: absolute; left: 0; right: 0; bottom: 14px; text-align: center; color: var(--fg-2); font-size: 14px; margin: 0; }
.lb button { position: absolute; background: none; border: 0; color: #fff; font: 300 34px/1 var(--sans); cursor: pointer; padding: 16px; min-width: 56px; min-height: 56px; }
.lb .x { top: 8px; right: 10px; } .lb .p { left: 6px; top: 50%; transform: translateY(-50%); } .lb .n { right: 6px; top: 50%; transform: translateY(-50%); }

/* About 2 cột + số liệu */
.two-col { display: grid; gap: 40px; }
@media (min-width: 900px) { .two-col { grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 100px); align-items: center; } .two-col.top { align-items: start; } }
.two-col .shot { aspect-ratio: 4 / 5; }
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 28px 40px; margin-top: 40px; list-style: none; padding: 0; }
@media (min-width: 900px) { .stats { grid-template-columns: repeat(3, 1fr); } }
.stats b { display: block; font-size: 44px; font-weight: 300; color: var(--acc); line-height: 1.1; }
.stats span { font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--mut); }

/* Bước quy trình */
.steps { list-style: none; margin: 60px 0 0; padding: 30px 0 0; border-top: 1px solid var(--line); display: grid; gap: 30px; grid-template-columns: repeat(5, 1fr); counter-reset: s; }
.steps li { counter-increment: s; }
.steps li::before { content: counter(s, decimal-leading-zero); display: block; font-size: 13px; color: var(--acc); letter-spacing: 0.2em; }
.steps h3 { font-size: 20px; margin: 10px 0 8px; }
.steps p { color: var(--mut); font-size: 15px; margin: 0; }
.steps.long { grid-template-columns: 1fr; gap: 0; border-top: 0; padding-top: 0; }
.steps.long li { display: grid; grid-template-columns: 70px 1fr; gap: 6px 20px; padding: 26px 0; border-top: 1px solid var(--line); }
.steps.long li::before { font-size: 15px; padding-top: 6px; }
@media (max-width: 1000px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .steps { grid-template-columns: 1fr; } }

/* Lý do */
.points { display: grid; gap: 30px 48px; margin-top: 50px; }
.points > div { border-top: 1px solid var(--line-2); padding-top: 18px; }
.points p { color: var(--mut); }
@media (min-width: 760px) { .points { grid-template-columns: 1fr 1fr; } }

/* Giá */
.price-list { margin-top: 40px; border-top: 1px solid var(--fg); }
.price-row { display: grid; grid-template-columns: 1fr auto; gap: 6px 24px; padding: 22px 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.price-row .what { font-size: clamp(19px, 1.6vw, 22px); font-weight: 400; }
.price-row .price { font-size: clamp(18px, 1.6vw, 22px); font-weight: 500; text-align: right; }
.price-row .note { grid-column: 1 / -1; font-size: 14px; color: var(--mut); }
.fine { font-size: 14px; color: var(--mut); margin-top: 18px; max-width: 90ch; }
.packages { display: grid; gap: 16px; margin-top: 50px; }
.pkg { border: 1px solid var(--line-2); padding: 30px 26px; display: flex; flex-direction: column; gap: 10px; background: var(--bg-2); }
.pkg.feature { border-color: var(--acc); }
.pkg .code { font-size: 12px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--acc); font-weight: 500; }
.pkg h2, .pkg h3 { margin: 0; }
.pkg .price { font-size: clamp(28px, 2.4vw, 36px); font-weight: 300; line-height: 1.15; letter-spacing: -0.01em; }
.pkg ul { margin: 8px 0 18px; padding-left: 18px; font-size: 15px; color: var(--fg-2); }
.pkg li { margin-bottom: 4px; }
.pkg .btn { margin-top: auto; }
@media (min-width: 760px) { .packages { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1200px) { .packages { grid-template-columns: repeat(4, 1fr); } .packages.three { grid-template-columns: repeat(3, 1fr); } }

/* Danh sách tick */
.check { list-style: none; padding: 0; margin: 0 0 1em; }
.check li { padding: 12px 0 12px 30px; border-bottom: 1px solid var(--line); position: relative; color: var(--fg-2); }
.check li::before { content: ""; position: absolute; left: 2px; top: 20px; width: 12px; height: 7px; border-left: 1.5px solid var(--acc); border-bottom: 1.5px solid var(--acc); transform: rotate(-45deg); }
.cross li::before { width: 12px; height: 1.5px; border: 0; background: var(--mut); transform: none; top: 24px; }
.callout { border-left: 2px solid var(--acc); padding: 14px 18px; background: var(--bg-2); font-size: 15px; color: var(--fg-2); }

/* Form tối */
.order { display: grid; gap: 40px; margin-top: 40px; }
@media (min-width: 1024px) { .order { grid-template-columns: 7fr 4fr; gap: 64px; align-items: start; } .order-aside { position: sticky; top: 110px; } }
fieldset { border: 0; padding: 0; margin: 0 0 30px; }
legend { font-size: 12px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--acc); font-weight: 500; margin-bottom: 18px; padding: 0; }
.field { margin-bottom: 18px; }
.field > label, .field > .label { display: block; font-weight: 400; font-size: 15px; margin-bottom: 6px; color: var(--fg); }
.opt { color: var(--mut); font-size: 13px; }
.hint { font-size: 14px; color: var(--mut); margin: 6px 0 0; }
input[type="text"], input[type="email"], input[type="number"], input[type="url"], input[type="date"], input[type="password"], select, textarea {
  width: 100%; min-height: 50px; padding: 12px 14px; border: 1px solid var(--line-2); background: var(--bg-2); color: var(--fg);
  font: 300 16px/1.4 var(--sans); border-radius: 0; color-scheme: dark;
}
textarea { min-height: 110px; resize: vertical; }
input:hover, select:hover, textarea:hover { border-color: #57554f; }
input[readonly] { background: var(--bg-3); color: var(--fg-2); }
::placeholder { color: #7d786f; }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: #ff6b5e; }
.field-error { color: #ff8a7f; font-size: 14px; margin: 6px 0 0; }
.field-error:empty { display: none; }
.choice, .field > label.choice { display: flex; gap: 12px; align-items: flex-start; padding: 8px 0; font-size: 15px; }
.choice input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--red); flex: none; }
.choice-row { display: flex; gap: 26px; flex-wrap: wrap; }
.two { display: grid; gap: 0 20px; }
@media (min-width: 640px) { .two { grid-template-columns: 1fr 1fr; } }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.order-aside .box { border: 1px solid var(--acc); padding: 26px; background: var(--bg-2); }
.sum-pkg { font-size: 22px; font-weight: 300; margin-bottom: 8px; }
.sum-table { margin: 12px 0; }
.sum-table div { display: flex; justify-content: space-between; gap: 16px; padding: 9px 0; border-bottom: 1px solid var(--line); }
.sum-table dt { color: var(--fg-2); font-size: 15px; }
.sum-table dd { margin: 0; font-weight: 500; text-align: right; }
.sum-note { font-size: 15px; color: var(--fg-2); }
.sum-fine { font-size: 14px; color: var(--mut); }
.sum-warn { border-left: 2px solid var(--acc); background: var(--bg-3); padding: 10px 12px; font-size: 15px; }
.form-error { color: #ff8a7f; font-weight: 400; }
.test-note, .test-flag { border-left: 2px solid #7fa6ff; background: #121826; color: #d9e3ff; padding: 10px 14px; font-size: 14px; }
.done { border: 1px solid var(--acc); padding: clamp(24px, 4vw, 48px); margin-top: 40px; background: var(--bg-2); }
.done h2 { font-size: clamp(28px, 3.4vw, 44px); }
.done h2:focus { outline: none; }
.ref { font-weight: 500; letter-spacing: 0.04em; color: var(--acc); }

/* FAQ */
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; padding: 22px 40px 22px 0; font-size: 18px; font-weight: 400; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 6px; top: 18px; font-size: 26px; font-weight: 300; color: var(--acc); transition: transform 160ms var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .a { padding: 0 0 22px; color: var(--fg-2); max-width: 70ch; }

/* Bảng, văn bản dài */
.table-wrap { overflow-x: auto; }
table.plain { border-collapse: collapse; width: 100%; margin: 24px 0; }
table.plain th, table.plain td { text-align: left; padding: 14px 16px 14px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
table.plain th { font-weight: 500; font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--acc); }
.admin-bar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; } #admin-app h2 { margin: 32px 0 12px; } .admin-table select { font: inherit; background: var(--bg-2); color: inherit; border: 1px solid var(--line-2); padding: 4px; }
.admin-table { border-collapse: collapse; font-size: 14px; } .admin-table td, .admin-table th { border-bottom: 1px solid var(--line); padding: 8px; text-align: left; }
.prose { max-width: 74ch; }
.prose h2 { font-size: clamp(24px, 2.6vw, 34px); margin-top: 1.6em; }
.prose p, .prose li { color: var(--fg-2); }
.prose ul { padding-left: 20px; }

/* Khối liên hệ giữa trang */
.contact-band { text-align: center; }
.contact-band h2 { margin: 0 auto; max-width: 18ch; }
.contact-band .lead { margin: 26px auto; }
.contact-band .btn-row { justify-content: center; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 56px 0 110px; font-size: 14px; color: var(--mut); }
.site-footer .cols { display: grid; gap: 30px; }
@media (min-width: 900px) { .site-footer .cols { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.site-footer .brand b { font-size: 34px; }
.site-footer .ft { font-size: 12px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--acc); font-weight: 500; margin: 0 0 12px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { text-decoration: none; color: var(--fg-2); }
.site-footer a:hover { color: var(--fg); text-decoration: underline; }
.legal { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--line); }
.linkish { background: none; border: 0; padding: 0; font: inherit; color: var(--fg-2); cursor: pointer; text-decoration: underline; }

/* WhatsApp nổi */
.wa { position: fixed; right: 18px; bottom: 18px; z-index: 40; width: 56px; height: 56px; border-radius: 50%; background: #1f7a4d; color: #fff; display: grid; place-items: center; box-shadow: 0 6px 20px rgba(0,0,0,.5); transition: transform 160ms var(--ease); }
.wa:active { transform: scale(0.97); }
.wa svg { width: 28px; height: 28px; }
.wa.msgr { bottom: 84px; background: #0a6cff; }

/* Banner cookie: Accept và Reject ngang nhau */
.cookie { position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 70; max-width: 560px; background: var(--bg-2); border: 1px solid var(--line-2); padding: 20px; box-shadow: 0 10px 30px rgba(0,0,0,.6); }
.cookie p { font-size: 14px; margin-bottom: 14px; color: var(--fg-2); }
.cookie .btns { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.cookie .btn { width: 100%; }

/* Hiện dần khi cuộn */
.js .reveal { opacity: 0; transform: translateY(34px); transition: opacity 1s var(--ease), transform 1s var(--ease); }
.js .reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
  .js .reveal { opacity: 1; transform: none; }
  .hero-full .slide img { transform: none; }
}
@media print { .site-header, .wa, .msgr, .cookie { display: none !important; } body { background: #fff; color: #000; } }