/* ============ Hana Buffet — style chung + trang chủ ============
   Phong cách tham khảo kingbbq.vn: header trắng, menu chữ in hoa giãn cách,
   nhãn nhỏ nâu vàng phía trên tiêu đề mục, nền xám nhạt xen trắng, ảnh món lớn,
   dải số liệu trên nền ảnh tối, chân trang tối.
   Cả web dùng một font: Montserrat. Các biến --char, --fire, --butter… vẫn giữ vì cuốn menu (menu.css) dùng. */
:root {
  /* trang chủ */
  --tan: #C7AC92;          /* chữ viết tay, icon */
  --tan-deep: #7E6146;     /* chữ nâu trên nền sáng (đủ tương phản) */
  --gray: #D3D3D3;         /* nền khối xám */
  --gray-soft: #F2F2F2;
  --top: #444444;          /* thanh trên cùng */
  --text: #333333;
  --text-soft: #666666;
  --line: #DDDDDD;
  --dark: #2B2B2E;         /* chân trang */

  /* thương hiệu Hana (logo) — cũng dùng trong cuốn menu */
  --char: #2A1B14;
  --char-deep: #20140E;
  --char-line: #4A3226;
  --fire: #F37021;
  --fire-deep: #B8470A;
  --butter: #FFCF5A;
  --butter-soft: #FFF3D1;
  --chili: #C62F1D;
  --paper: #FFFFFF;
  --smoke: #EDE6E0;
  --ink: #231913;
  --ink-soft: #6B5A4E;
  --on-char: #E9DCD2;
  --on-char-soft: #C4AF9F;

  --font-sans: "Montserrat", system-ui, -apple-system, "Segoe UI", sans-serif;   /* font duy nhất của web — như menu Hana */
  --menu-orange: #F08020;

  --header-h: 88px;
  --wrap: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { margin: 0; font-weight: 400; line-height: 1.2; }
p { margin: 0; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }

:focus-visible { outline: 2px solid var(--tan-deep); outline-offset: 3px; }
.topbar :focus-visible, .hero :focus-visible, .stats :focus-visible, .site-footer :focus-visible { outline-color: var(--paper); }

.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 100;
  padding: 10px 16px;
  background: var(--paper); color: var(--text); font-weight: 500; text-decoration: none;
}
.skip-link:focus { top: 12px; }

.data-error { margin: 24px 20px; padding: 16px; background: #FBE1DC; color: var(--chili); }

/* ---------- nút ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 26px;
  border: 1px solid transparent;
  font: 500 14px/1.2 var(--font-sans);
  letter-spacing: .12em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .15s, color .15s, border-color .15s;
}
.btn-sm { padding: 9px 16px; font-size: 13px; }
.btn-solid { background: var(--paper); color: var(--text); }
.btn-solid:hover { background: var(--tan); color: var(--paper); }
.btn-ghost { border-color: rgba(255, 255, 255, .7); color: var(--paper); background: transparent; }
.btn-ghost:hover { background: rgba(255, 255, 255, .12); }
.btn-dark { background: #000; color: var(--paper); }
.btn-dark:hover { background: var(--tan-deep); }
.btn-fire { background: var(--fire); color: var(--ink); }
.btn-fire:hover { background: var(--butter); }
.btn-line { border-color: var(--text); color: var(--text); background: transparent; }
.btn-line:hover { background: var(--text); color: var(--paper); }
.btn:disabled { opacity: .6; cursor: wait; }

/* ---------- tab (lọc chi nhánh; cuốn menu dùng biến thể .tabs-dark) ---------- */
.tabs { display: flex; gap: 28px; overflow-x: auto; border-bottom: 1px solid var(--line); scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tabs:empty { display: none; }
.tab {
  flex: none;
  padding: 12px 0 10px;
  border: 0; border-bottom: 2px solid transparent;
  background: none;
  color: var(--text-soft);
  font: 500 14px var(--font-sans);
  letter-spacing: .08em;
  text-transform: uppercase;
  cursor: pointer;
  white-space: nowrap;
}
.tab:hover { color: var(--text); }
.tab[aria-selected="true"], .tab[aria-pressed="true"] { color: var(--text); border-bottom-color: var(--tan); }
.tab-count { color: var(--text-soft); font-size: 13px; }

/* ---------- thanh trên + header ---------- */
.topbar { background: var(--top); color: #CFCFCF; font-size: 14px; }
.topbar-inner { display: flex; justify-content: space-between; gap: 16px; padding-top: 7px; padding-bottom: 7px; }
.topbar a { color: #EFEFEF; text-decoration: none; }
.topbar a:hover { color: var(--tan); }

.site-header {
  position: sticky; top: 0; z-index: 50;
  height: var(--header-h);
  background: var(--paper);
  transition: box-shadow .2s;
}
.site-header.is-scrolled { box-shadow: 0 2px 14px rgba(0, 0, 0, .08); }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.brand-logo img { width: auto; height: 56px; }

.site-nav { display: flex; align-items: center; }
.site-nav a {
  padding: 4px 20px;
  color: #555;
  font-size: 14px;
  letter-spacing: .1em;
  text-transform: uppercase;
  text-decoration: none;
}
.site-nav a + a { border-left: 1px solid var(--line); }
.site-nav a:last-child { padding-right: 0; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--tan-deep); }

.nav-toggle { display: none; }

/* ---------- hero: ảnh trượt ---------- */
.hero { position: relative; height: clamp(460px, 56vw, 720px); overflow: hidden; background: #111; color: var(--paper); }
.slides, .slide { position: absolute; inset: 0; }
.slide { opacity: 0; visibility: hidden; transition: opacity 1.2s ease, visibility 0s 1.2s; }
.slide.is-active { opacity: 1; visibility: visible; transition: opacity 1.2s ease; }
.slide img { width: 100%; height: 100%; object-fit: cover; }
/* ảnh quảng cáo (Facebook): hiện trọn, không cắt chữ; hai bên là chính ảnh đó làm mờ */
.slide-poster { overflow: hidden; background: #111; }
.slide-poster .slide-bg { position: absolute; inset: 0; filter: blur(28px) brightness(.55); transform: scale(1.15); }
.slide-poster .slide-fg { position: relative; object-fit: contain; }
.slide-intro::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(90deg, rgba(0, 0, 0, .7) 0%, rgba(0, 0, 0, .35) 45%, rgba(0, 0, 0, 0) 75%);
}
.hero-caption { position: absolute; left: 0; right: 0; bottom: 14%; z-index: 2; }
.hero .script { color: #E6CFB4; font-size: clamp(20px, 2vw, 26px); }
.hero-title {
  margin-top: 10px;
  font-weight: 700;
  font-size: clamp(32px, 4.4vw, 54px);
  line-height: 1.15;
}
.hero-price { margin-top: 18px; font-size: 18px; font-weight: 400; }
.hero-price strong { font-weight: 600; font-size: 25px; color: #E6CFB4; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.slide-arrow {
  position: absolute; top: 50%; z-index: 3;
  display: grid; place-items: center;
  width: 52px; height: 52px; margin-top: -26px;
  border: 0; border-radius: 50%;
  background: transparent; color: var(--paper);
  cursor: pointer;
}
.slide-arrow:hover { background: rgba(255, 255, 255, .14); }
.slide-arrow svg { width: 34px; height: 34px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.slide-prev { left: 16px; }
.slide-next { right: 16px; }
.slide-dots { position: absolute; left: 0; right: 0; bottom: 22px; z-index: 3; display: flex; justify-content: center; gap: 10px; }
.slide-dots button { width: 9px; height: 9px; padding: 0; border: 1px solid var(--paper); border-radius: 50%; background: transparent; cursor: pointer; }
.slide-dots button[aria-current="true"] { background: var(--paper); }

/* ---------- khối nội dung ---------- */
.sec { padding: 88px 0; }
.sec-gray { background: var(--gray); }
.sec-head { text-align: center; margin-bottom: 36px; }
.script { font-weight: 600; font-size: clamp(20px, 2vw, 26px); letter-spacing: .02em; line-height: 1.3; color: var(--tan-deep); }
.sec-title {
  position: relative;
  margin-top: 6px;
  font-weight: 700;
  font-size: clamp(30px, 3.6vw, 42px);
  color: var(--menu-orange);
}
.sec-lead { margin: 12px auto 0; max-width: 60ch; color: var(--text-soft); }
.sec-cta { margin-top: 40px; text-align: center; }

/* ---------- best choice ---------- */
.about-lead { max-width: 68ch; margin: 0 auto; text-align: center; color: #444; }
.about-lead p + p { margin-top: 10px; }
.features { list-style: none; margin: 48px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.feature svg { width: 72px; height: 72px; margin: 0 auto 14px; fill: none; stroke: var(--tan); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.feature strong { display: block; font-weight: 600; font-size: 14px; letter-spacing: .14em; text-transform: uppercase; color: #333; }
.feature span { display: block; margin-top: 4px; font-size: 15px; color: var(--text-soft); }

.photo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 40px; }
.photo-grid img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.photo-grid .photo-wide { grid-column: 1 / -1; aspect-ratio: 14 / 9; }

/* ---------- số liệu ---------- */
.stats {
  padding: 72px 0;
  background: linear-gradient(rgba(25, 25, 28, .72), rgba(25, 25, 28, .72)), url("../assets/images/site/vi-nuong.jpg") center / cover;
  color: var(--paper);
}
.stats-list { list-style: none; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stats-list strong { display: block; font-weight: 500; font-size: clamp(40px, 5vw, 60px); line-height: 1.1; letter-spacing: .02em; }
.stats-list span { display: block; margin-top: 4px; font-weight: 400; font-size: 17px; letter-spacing: .12em; text-transform: uppercase; color: #E2E2E2; }

/* ---------- bảng giá ---------- */
/* 2 thẻ mỗi hàng (hàng trên ngày thường, hàng dưới cuối tuần & lễ); điện thoại 1 cột */
.price-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; max-width: 900px; margin: 0 auto; }
.price-group { font-size: 14px; font-weight: 600; color: var(--tan-deep); }
.price-card { padding: 30px 20px; border: 1px solid var(--line); text-align: center; background: var(--paper); }
.price-card.is-now { border: 2px solid var(--tan); }
.now-label { margin: 6px 0 0; font-size: 13px; font-weight: 500; letter-spacing: .14em; text-transform: uppercase; color: var(--tan-deep); }
.price-card h3 { font-weight: 700; font-size: 24px; color: var(--menu-orange); }
.price-time { margin-top: 6px; font-size: 15px; color: var(--text-soft); }
.price-rows { margin: 22px 0 0; }
.price-rows div + div { margin-top: 14px; }
.price-rows dt { font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: #888; }
.price-rows dd { margin: 2px 0 0; font-weight: 600; font-size: 32px; line-height: 1.2; color: #222; }
.price-notes { list-style: none; margin: 28px 0 0; padding: 0; text-align: center; font-size: 15px; color: var(--text-soft); }
.price-notes li + li { margin-top: 4px; }

/* ---------- thực đơn ---------- */
.menu-cards { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.menu-card { display: block; text-decoration: none; color: var(--text); }
.menu-card img { width: 100%; aspect-ratio: 1; object-fit: cover; transition: filter .2s; }
.menu-card:hover img { filter: brightness(1.08); }
.menu-card-name { display: block; margin-top: 12px; font-weight: 600; font-size: 15px; letter-spacing: .12em; text-transform: uppercase; }
.menu-card-meta { display: block; font-size: 14px; color: var(--text-soft); }

/* ---------- chi nhánh ---------- */
.branch-tools { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; }
.branch-tools .tabs { flex: 1; min-width: 0; }
.near-status { margin-top: 20px; padding: 12px 16px; background: var(--gray-soft); font-size: 16px; }
.near-status.is-error { background: #FBE1DC; color: var(--chili); }

.branch-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 28px; }
.branch { display: flex; flex-direction: column; padding: 28px; background: var(--gray-soft); border: 2px solid transparent; }
.branch.is-nearest { border-color: var(--tan); background: var(--paper); }
.branch-img { width: calc(100% + 56px); margin: -28px -28px 20px; aspect-ratio: 16 / 9; object-fit: cover; }
.nearest-label { margin-bottom: 4px; font-size: 13px; font-weight: 500; letter-spacing: .14em; text-transform: uppercase; color: var(--tan-deep); }
.branch-title { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.branch-title h3 { font-weight: 700; font-size: 24px; color: var(--menu-orange); }
.branch-distance { flex: none; font-weight: 500; color: var(--tan-deep); }
.branch-info { list-style: none; margin: 14px 0 0; padding: 0; }
.branch-info li { display: flex; gap: 10px; align-items: flex-start; font-size: 16px; color: #555; }
.branch-info li + li { margin-top: 6px; }
.branch-info svg { flex: none; width: 18px; height: 18px; margin-top: 3px; fill: none; stroke: var(--tan-deep); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.branch-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: auto; padding-top: 22px; }

/* ---------- chân trang ---------- */
.site-footer {
  padding: 64px 0 24px;
  background: linear-gradient(rgba(34, 34, 38, .9), rgba(34, 34, 38, .9)), url("../assets/images/site/ban-tiec.jpg") center / cover;
  color: #CFCFCF;
  font-size: 15px;
}
.footer-inner { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 40px; align-items: center; }
.footer-label { margin-bottom: 10px; font-size: 14px; font-weight: 500; letter-spacing: .14em; text-transform: uppercase; color: var(--paper); }
.socials { display: flex; flex-wrap: wrap; gap: 16px; }
.socials a { color: var(--tan); }
.footer-brand { text-align: center; }
.footer-brand img { width: 120px; height: 120px; margin: 0 auto 14px; border-radius: 50%; background: var(--paper); }
.footer-brand a { color: var(--paper); font-weight: 500; text-decoration: none; }
.footer-links { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.footer-links a { text-decoration: none; letter-spacing: .06em; }
.footer-links a:hover, .socials a:hover { color: var(--paper); }
.copyright { margin-top: 44px; padding-top: 18px; border-top: 1px solid rgba(255, 255, 255, .12); font-size: 13px; color: #9A9A9A; text-align: center; }

/* ---------- nút gọi nổi ---------- */
.call-fab {
  position: fixed; right: 22px; bottom: 22px; z-index: 40;
  display: grid; place-items: center;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--fire); color: var(--ink);
  box-shadow: 0 8px 22px rgba(0, 0, 0, .3);
}
.call-fab svg { width: 26px; height: 26px; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }

/* ============ responsive ============ */
@media (max-width: 900px) {
  :root { --header-h: 68px; }
  .brand-logo img { height: 44px; }

  .nav-toggle {
    display: flex; flex-direction: column; justify-content: center; gap: 5px;
    width: 44px; height: 44px; padding: 11px;
    border: 0; background: transparent; cursor: pointer;
  }
  .nav-toggle span { display: block; height: 2px; background: var(--text); transition: transform .2s, opacity .2s; }
  .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); }

  .site-nav {
    position: absolute; top: var(--header-h); left: 0; right: 0;
    display: none; flex-direction: column; align-items: stretch;
    padding: 4px 20px 16px;
    background: var(--paper);
    box-shadow: 0 12px 20px rgba(0, 0, 0, .08);
  }
  .site-nav.is-open { display: flex; }
  .site-nav a, .site-nav a:last-child { padding: 14px 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .site-nav a + a { border-left: 0; }


  .slide-intro::after { background: linear-gradient(0deg, rgba(0, 0, 0, .75) 0%, rgba(0, 0, 0, .3) 55%, rgba(0, 0, 0, .1) 100%); }
  .hero-caption { bottom: 64px; }
  .hero { height: 560px; }
  .slide-arrow { display: none; }

  .sec { padding: 64px 0; }
  .features { grid-template-columns: repeat(2, 1fr); row-gap: 32px; }
  .stats-list { grid-template-columns: repeat(2, 1fr); row-gap: 32px; }
  .price-cards { grid-template-columns: repeat(2, 1fr); }
  .menu-cards { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .branch-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; text-align: center; gap: 28px; }
  .socials { justify-content: center; }
  .footer-links { align-items: center; }
}

@media (max-width: 560px) {
  .topbar-inner > span { display: none; }
  .topbar-inner { justify-content: center; }
  .hero-title { font-size: 32px; }
  .price-cards { grid-template-columns: 1fr; }
  .photo-grid { gap: 8px; }
  .branch { padding: 22px 20px; }
  .branch-img { width: calc(100% + 40px); margin: -22px -20px 18px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .slide, .btn, .nav-toggle span, .menu-card img { transition: none; }
}