/* LISATI – đồ dùng khách sạn. Màu theo Quy chuẩn thương hiệu LIS-BGG-2026.
   --gold-deep / --teal-deep: bản đậm hơn để chữ nhỏ trên nền trắng đủ dễ đọc. */
:root {
  --navy: #1B324B;      /* Deep Navy Blue – màu chủ đạo */
  --navy-2: #2a4a6b;
  --gold: #C4A981;      /* Champagne Gold – màu điểm nhấn */
  --gold-deep: #8C6E43;
  --gold-soft: #f3ede3;
  --teal: #6B8E8E;      /* Sage Teal Green – màu bổ trợ */
  --teal-deep: #4E6F6F;
  --teal-soft: #e9efef;
  --ink: #1d2533;
  --muted: #5b6575;
  --line: #e6e2d8;
  --bg: #ffffff;
  --bg-alt: #F8F6F0;    /* Warm Off-White – màu nền chuẩn */
  --radius: 14px;
  --shadow: 0 6px 24px rgba(27, 50, 75, .08);
  --wrap: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--navy-2); }
h1, h2, h3 { color: var(--navy); line-height: 1.25; margin: 0 0 .6em; }
h1 { font-size: clamp(1.9rem, 4.2vw, 3rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 600; }
p { margin: 0 0 1em; }
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--navy); color: #fff; padding: 8px 14px; z-index: 100; }
.skip:focus { left: 8px; }
.eyebrow { display: inline-block; font-size: .8rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--gold-deep); margin-bottom: .6rem; }
.lead { font-size: 1.1rem; color: var(--muted); max-width: 680px; }
.section { padding: 72px 0; }
.section.alt { background: var(--bg-alt); }
.section-head { max-width: 760px; margin-bottom: 36px; }
.center { text-align: center; margin-left: auto; margin-right: auto; }

/* Nút */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 24px; border-radius: 999px; font-weight: 600; text-decoration: none; border: 2px solid transparent; transition: background .2s, color .2s, border-color .2s; cursor: pointer; font: inherit; font-weight: 600; }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-2); }
.btn-gold { background: var(--gold-deep); color: #fff; }
.btn-gold:hover { background: #a3884f; }
.btn-ghost { border-color: var(--navy); color: var(--navy); background: transparent; }
.btn-ghost:hover { background: var(--navy); color: #fff; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }

/* Thanh trên cùng + header */
.topbar { background: var(--navy); color: #dfe6f1; font-size: .85rem; }
.topbar .wrap { display: flex; justify-content: space-between; gap: 16px; padding-top: 7px; padding-bottom: 7px; flex-wrap: wrap; }
.topbar a { color: #fff; text-decoration: none; }
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.97); border-bottom: 1px solid var(--line); backdrop-filter: blur(6px); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 76px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand img { width: 52px; height: 50px; }
.brand span { font-weight: 700; font-size: 1.35rem; letter-spacing: .14em; color: var(--navy); }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { text-decoration: none; color: var(--ink); font-weight: 500; padding: 10px 14px; border-radius: 8px; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--navy); background: var(--gold-soft); }
.nav a.btn { margin-left: 8px; padding: 10px 20px; color: #fff; background: var(--navy); }
.nav a.btn:hover, .nav a.btn[aria-current="page"] { background: var(--navy-2); color: #fff; }
.nav-toggle { display: none; background: none; border: 0; padding: 10px; cursor: pointer; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--navy); margin: 5px 0; transition: transform .2s, opacity .2s; }

/* Hero */
.hero { position: relative; overflow: hidden; background: linear-gradient(135deg, #fbf8f2 0%, #eef6f6 100%); }
.hero .wrap { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; padding-top: 72px; padding-bottom: 72px; }
.hero-points { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 10px; }
.hero-points li { display: flex; gap: 10px; align-items: flex-start; }
.hero-points li::before { content: ""; flex: 0 0 20px; height: 20px; margin-top: 3px; border-radius: 50%; background: var(--teal) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10.5l3 3 7-7' stroke='white' stroke-width='2.2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") center/14px no-repeat; }
.hero-visual { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.hero-visual figure { margin: 0; border-radius: var(--radius); overflow: hidden; background: #fff; box-shadow: var(--shadow); }
.hero-visual figure:first-child { grid-row: span 2; }
.hero-visual img { width: 100%; height: 100%; object-fit: cover; }

/* Thẻ giải pháp theo khu vực */
.zones { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.zone { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 22px; text-decoration: none; color: inherit; transition: transform .2s, box-shadow .2s, border-color .2s; display: flex; flex-direction: column; }
.zone:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--gold); }
.zone .icon { width: 52px; height: 52px; border-radius: 12px; background: var(--teal-soft); display: grid; place-items: center; margin-bottom: 16px; }
.zone .icon svg { width: 28px; height: 28px; stroke: var(--navy); }
.zone p { color: var(--muted); font-size: .95rem; flex: 1; }
.zone .more { color: var(--gold-deep); font-weight: 600; font-size: .92rem; }

/* Danh mục sản phẩm */
.cats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.cat { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); text-decoration: none; color: inherit; display: flex; flex-direction: column; transition: transform .2s; }
.cat:hover { transform: translateY(-3px); }
.cat img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; background: var(--bg-alt); }
.cat-body { padding: 20px 22px 24px; }
.cat-body p { color: var(--muted); font-size: .95rem; margin-bottom: .6em; }
.cat-body .more { color: var(--navy); font-weight: 600; }

/* Lý do chọn */
.reasons { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.reason { padding-left: 18px; border-left: 3px solid var(--gold); }
.reason p { color: var(--muted); margin: 0; }

/* Quy trình */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; list-style: none; padding: 0; margin: 0; }
.steps li { counter-increment: step; background: #fff; border-radius: var(--radius); padding: 24px 18px; border: 1px solid var(--line); position: relative; }
.steps li::before { content: counter(step, decimal-leading-zero); display: block; font-size: 1.6rem; font-weight: 700; color: var(--teal); margin-bottom: 8px; }
.steps p { color: var(--muted); font-size: .93rem; margin: 0; }

/* Dải kêu gọi */
.cta-band { background: var(--navy); color: #e8edf5; border-radius: 20px; padding: 44px; display: grid; grid-template-columns: 1.4fr 1fr; gap: 28px; align-items: center; }
.cta-band h2 { color: #fff; }
.cta-band .btn-row { justify-content: flex-end; margin: 0; }
.cta-band .btn-ghost { border-color: #fff; color: #fff; }
.cta-band .btn-ghost:hover { background: #fff; color: var(--navy); }

/* Trang danh mục */
.page-hero { background: linear-gradient(135deg, #fbf8f2 0%, #eef6f6 100%); padding: 40px 0 44px; }
.breadcrumb { font-size: .88rem; color: var(--muted); margin-bottom: 14px; }
.breadcrumb ol { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.breadcrumb li + li::before { content: "/"; margin-right: 6px; color: #aab1bd; }
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--navy); }
.cat-layout { display: grid; grid-template-columns: 250px 1fr; gap: 36px; align-items: start; }
.side-nav { position: sticky; top: 100px; background: var(--bg-alt); border-radius: var(--radius); padding: 18px; }
.side-nav h2 { font-size: 1rem; margin-bottom: 10px; }
.side-nav ul { list-style: none; padding: 0; margin: 0; }
.side-nav a { display: block; padding: 9px 12px; border-radius: 8px; text-decoration: none; color: var(--ink); font-size: .95rem; }
.side-nav a:hover, .side-nav a[aria-current="page"] { background: #fff; color: var(--navy); font-weight: 600; }
.products { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.product { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; }
.product img { aspect-ratio: 1 / 1; object-fit: cover; width: 100%; background: var(--bg-alt); }
.product-body { padding: 16px 18px 20px; display: flex; flex-direction: column; flex: 1; }
.product-body h3 { font-size: 1.02rem; margin-bottom: 8px; }
.specs { list-style: none; padding: 0; margin: 0 0 14px; font-size: .9rem; color: var(--muted); flex: 1; }
.specs li { padding: 3px 0; border-bottom: 1px dashed var(--line); }
.specs li:last-child { border-bottom: 0; }
.specs b { color: var(--ink); font-weight: 500; }
.product .btn { justify-content: center; padding: 10px 16px; font-size: .92rem; }
.prose { max-width: 820px; }
.prose h2 { margin-top: 1.6em; font-size: 1.45rem; }
.prose ul { padding-left: 1.2em; }

/* Bài viết Kiến thức */
.post-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.post-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; display: flex; flex-direction: column; transition: box-shadow .2s, border-color .2s; }
.post-card:hover { box-shadow: var(--shadow); border-color: var(--gold); }
.post-card h2 { font-size: 1.15rem; line-height: 1.4; margin: 6px 0 10px; }
.post-card h2 a { color: var(--navy); text-decoration: none; }
.post-card p { color: var(--muted); margin: 0 0 14px; flex: 1; }
.post-card .more { color: var(--gold-deep); font-weight: 600; text-decoration: none; }
.post-meta { color: var(--muted); font-size: .88rem; margin: 8px 0 0; }
.post-card .post-meta { margin: 0; }
.post { line-height: 1.75; font-size: 1.04rem; }
.post h2 { color: var(--navy); }
.post h3 { color: var(--navy); font-size: 1.12rem; margin-top: 1.4em; }
.post table { width: 100%; border-collapse: collapse; margin: 1.2em 0; font-size: .95rem; }
.post th, .post td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
.post th { background: var(--bg-alt); color: var(--navy); }
.post .table-scroll { overflow-x: auto; }
.post .note-box { background: var(--gold-soft); border-left: 4px solid var(--gold); padding: 14px 18px; border-radius: 8px; margin: 1.2em 0; }
.post .faq h3 { margin-top: 1.1em; }
.post .toc { background: var(--bg-alt); border: 1px solid var(--line); border-radius: 12px; padding: 16px 22px; margin: 1em 0 1.6em; }
.post .toc p { margin: 0 0 6px; font-weight: 600; color: var(--navy); }
.post .toc ol { margin: 0; padding-left: 1.2em; }
.size-table { width: 100%; border-collapse: collapse; margin: 1em 0 1.6em; font-size: .95rem; }
.size-table th, .size-table td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; }
.size-table th { background: var(--gold-soft); color: var(--navy); }
.table-scroll { overflow-x: auto; }
.faq details { border: 1px solid var(--line); border-radius: 10px; padding: 14px 18px; margin-bottom: 10px; background: #fff; }
.faq summary { font-weight: 600; cursor: pointer; color: var(--navy); }
.faq details p { margin: 10px 0 0; color: var(--muted); }

/* Form */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid .full { grid-column: 1 / -1; }
label { display: block; font-weight: 500; margin-bottom: 6px; font-size: .95rem; }
input, select, textarea { width: 100%; padding: 12px 14px; border: 1px solid #cfd5df; border-radius: 10px; font: inherit; background: #fff; color: var(--ink); }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--teal-deep); border-color: var(--teal-deep); }
textarea { min-height: 130px; resize: vertical; }
.checks { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 16px; }
.checks label { display: flex; align-items: center; gap: 8px; font-weight: 400; margin: 0; }
.checks input { width: auto; }
.note { font-size: .88rem; color: var(--muted); }
.contact-cards { display: grid; gap: 14px; }
.contact-card { display: flex; gap: 14px; align-items: flex-start; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.contact-card svg { width: 26px; height: 26px; flex: 0 0 26px; stroke: var(--gold); }
.contact-card p { margin: 0; color: var(--muted); }
.contact-card a { font-weight: 600; text-decoration: none; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.map { border: 0; width: 100%; height: 340px; border-radius: var(--radius); }

/* Footer */
.site-footer { background: #0f2240; color: #b9c3d3; padding: 56px 0 24px; margin-top: 0; font-size: .95rem; }
.site-footer h2 { color: #fff; font-size: 1rem; margin-bottom: 14px; letter-spacing: .04em; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 32px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { color: #dfe6f1; text-decoration: none; }
.site-footer a:hover { color: var(--gold); }
.footer-brand img { width: 70px; height: 67px; background: #fff; border-radius: 12px; padding: 6px; margin-bottom: 12px; }
.copyright { border-top: 1px solid rgba(255,255,255,.12); margin-top: 36px; padding-top: 18px; font-size: .85rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

/* Nút liên hệ nổi */
.float-contact { position: fixed; right: 16px; bottom: 16px; z-index: 60; display: flex; flex-direction: column; gap: 10px; }
.float-contact a { width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center; box-shadow: 0 6px 18px rgba(0,0,0,.18); color: #fff; font-weight: 700; font-size: .78rem; text-decoration: none; }
.float-contact .zalo { background: #0068ff; }
.float-contact .call { background: var(--teal-deep); }
.float-contact svg { width: 24px; height: 24px; stroke: #fff; }
.float-contact { align-items: flex-end; }
.contact-pop { position: relative; width: 268px; max-width: calc(100vw - 32px); background: #fff; border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 12px 36px rgba(27,50,75,.22); padding: 18px 18px 14px; margin-bottom: 4px; text-align: center; }
.contact-pop[hidden] { display: none; }
.contact-pop-close { position: absolute; top: 6px; right: 8px; width: 32px; height: 32px; border: 0; background: none; font-size: 1.4rem; line-height: 1; color: var(--muted); cursor: pointer; }
.contact-pop-label { margin: 0; font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--gold-deep); font-weight: 600; }
.contact-pop-num { margin: 4px 0 12px; font-size: 1.5rem; font-weight: 700; color: var(--navy); letter-spacing: .02em; }
.float-contact .contact-pop-btn { width: auto; height: auto; border-radius: 10px; display: flex; align-items: center; justify-content: center; gap: 8px; padding: 11px 14px; margin-top: 8px; font-size: .95rem; font-weight: 600; box-shadow: none; }
.float-contact .contact-pop-btn svg { width: 18px; height: 18px; }
.float-contact .contact-pop-btn.is-call { background: var(--teal-deep); }
.float-contact .contact-pop-btn.is-zalo { background: #0068ff; }
.contact-pop-copy { width: 100%; margin-top: 8px; padding: 10px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg-alt); color: var(--navy); font: inherit; font-weight: 600; cursor: pointer; }
.contact-pop-note { margin: 10px 0 0; font-size: .8rem; color: var(--muted); }
.contact-pop-note b { white-space: nowrap; }

/* Hiệu ứng thu hút nhẹ cho 2 nút nổi: vòng sóng lan + điện thoại rung. Dừng khi đã mở bảng liên hệ. */
.float-contact > .zalo, .float-contact > .call { position: relative; }
.float-contact > .zalo::before, .float-contact > .call::before {
  content: ""; position: absolute; inset: 0; border-radius: 50%; background: inherit; z-index: -1;
  animation: lisati-ripple 2.8s ease-out infinite;
}
.float-contact > .call::before { animation-delay: 1.4s; }
.float-contact > .call svg { animation: lisati-ring 2.8s ease-in-out infinite; transform-origin: 50% 50%; }
.float-contact > [aria-expanded="true"]::before,
.float-contact > [aria-expanded="true"] svg,
.float-contact.is-open > a::before,
.float-contact.is-open > a svg { animation: none; }
.float-contact.is-open > a::before { opacity: 0; }
@keyframes lisati-ripple {
  0% { transform: scale(1); opacity: .55; }
  70% { transform: scale(1.75); opacity: 0; }
  100% { transform: scale(1.75); opacity: 0; }
}
@keyframes lisati-ring {
  0%, 62%, 100% { transform: rotate(0); }
  66% { transform: rotate(-14deg); }
  70% { transform: rotate(12deg); }
  74% { transform: rotate(-10deg); }
  78% { transform: rotate(8deg); }
  82% { transform: rotate(0); }
}
@media (prefers-reduced-motion: reduce) {
  .float-contact > a::before, .float-contact > a svg { animation: none !important; }
}

/* Máy tính bảng */
@media (max-width: 1024px) {
  .zones { grid-template-columns: repeat(2, 1fr); }
  .cats, .products { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cat-layout { grid-template-columns: 1fr; }
  .side-nav { position: static; }
  .side-nav ul { display: flex; flex-wrap: wrap; gap: 6px; }
}

/* Điện thoại */
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .site-header .wrap { position: relative; }
  .nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; padding: 12px 20px 22px; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .nav.open { display: flex; }
  .nav a { padding: 13px 10px; border-bottom: 1px solid var(--line); border-radius: 0; }
  .nav .btn { margin: 14px 0 0; justify-content: center; border-radius: 999px; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .hero .wrap, .two-col, .cta-band { grid-template-columns: 1fr; }
  .hero .wrap { padding-top: 44px; padding-bottom: 48px; gap: 32px; }
  .cta-band { padding: 32px 24px; }
  .cta-band .btn-row { justify-content: flex-start; }
  .reasons { grid-template-columns: 1fr; }
  .section { padding: 52px 0; }
  .topbar .hide-sm { display: none; }
}
@media (max-width: 560px) {
  .zones, .cats, .products, .steps, .footer-grid, .form-grid, .checks { grid-template-columns: 1fr; }
  .brand span { font-size: 1.15rem; }
  .btn-row .btn { width: 100%; justify-content: center; }
}