/* Website đặt phòng – CSS thuần, không cần build. */
:root {
  --jade: #0e5e57; --jade-dark: #0a4843; --jade-ink: #10302d; --jade-soft: #e3f0ed;
  --saffron: #e9962a; --saffron-dark: #c97c17; --saffron-soft: #fdf1df;
  --ink: #1b2430; --muted: #56616b; --faint: #8a949d; --line: #dfe5e3; --mist: #f2f6f5; --white: #fff;
  --red: #b42318; --red-bg: #fdecea; --green: #217a3a; --green-bg: #e5f4e9;
  --font: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --radius: 8px; --wrap: 1180px;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 16px/1.6 var(--font); color: var(--ink); background: var(--white); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: var(--jade); }
h1, h2, h3 { line-height: 1.2; margin: 0; font-weight: 700; letter-spacing: -.01em; }
h1 { font-size: clamp(30px, 4.4vw, 50px); }
h2 { font-size: clamp(22px, 2.6vw, 30px); }
h3 { font-size: 19px; }
p { margin: 0 0 1em; }
:focus-visible { outline: 3px solid var(--saffron); outline-offset: 2px; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.muted { color: var(--muted); } .faint { color: var(--faint); } .small { font-size: 14px; }
.stars { color: var(--saffron); letter-spacing: 1px; font-size: 14px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* Header */
.site-header { border-bottom: 1px solid var(--line); background: var(--white); position: sticky; top: 0; z-index: 30; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 66px; }
.logo { font-weight: 800; font-size: 20px; color: var(--jade-ink); text-decoration: none; }
.site-nav { display: flex; align-items: center; gap: 22px; }
.site-nav a { color: var(--ink); text-decoration: none; font-weight: 500; }
.site-nav a:hover { color: var(--jade); }
.hotline { background: var(--saffron); color: var(--jade-ink) !important; padding: 8px 14px; border-radius: 999px; font-weight: 700 !important; white-space: nowrap; }

/* Buttons & forms */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: var(--radius); padding: 12px 22px; font: inherit; font-weight: 700; cursor: pointer; text-decoration: none; line-height: 1.2; }
.btn-primary { background: var(--jade); color: #fff; } .btn-primary:hover { background: var(--jade-dark); }
.btn-accent { background: var(--saffron); color: var(--jade-ink); } .btn-accent:hover { background: var(--saffron-dark); }
.btn-ghost { background: var(--white); color: var(--jade); border: 1px solid var(--jade); }
.btn-block { width: 100%; }
.field label, .label { display: block; font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 5px; }
.input { width: 100%; min-width: 0; min-height: 46px; padding: 10px 12px; font: inherit; color: var(--ink); background: var(--white); border: 1px solid #c8d2cf; border-radius: var(--radius); }
.input:focus { outline: none; border-color: var(--jade); box-shadow: 0 0 0 3px var(--jade-soft); }
textarea.input { min-height: 110px; resize: vertical; }
.check { display: flex; align-items: flex-start; gap: 10px; cursor: pointer; font-size: 15px; }
.check input { width: 18px; height: 18px; margin-top: 3px; accent-color: var(--jade); flex: none; }
.error { color: var(--red); font-size: 13px; margin-top: 4px; }
.alert { padding: 12px 16px; border-radius: var(--radius); margin: 16px 0; }
.alert-error { background: var(--red-bg); color: #8d1c13; }
.alert-success { background: var(--green-bg); color: #1a5e2e; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 16px; }
.form-grid .full { grid-column: 1 / -1; }

/* Hero */
.hero { background: var(--jade-ink); color: #fff; padding: 64px 0 72px; }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 520px); gap: 48px; align-items: center; }
.hero h1 { max-width: 13ch; }
.hero .lede { font-size: 18px; color: #c3d8d4; max-width: 46ch; margin-top: 18px; }
.hero-proof { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 28px; }
.hero-proof span { font-size: 13px; padding: 6px 10px; border-radius: 6px; background: rgba(255,255,255,.07); color: #d8e7e4; font-variant-numeric: tabular-nums; }
.hero-proof span.we { background: rgba(233,150,42,.22); color: #ffd9a3; }
.search-card { background: var(--white); color: var(--ink); border-radius: 12px; padding: 22px; }
.search-card h2 { font-size: 18px; margin-bottom: 14px; }
.search-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.search-grid .full { grid-column: 1 / -1; }
.ages { display: flex; flex-wrap: wrap; gap: 8px; }
.ages select { width: auto; min-width: 92px; }

/* Sections */
.section { padding: 56px 0; }
.section.alt { background: var(--mist); }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; margin-bottom: 22px; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { display: inline-flex; gap: 8px; align-items: baseline; padding: 10px 16px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; color: var(--ink); background: var(--white); }
.chip:hover { border-color: var(--jade); }
.chip small { color: var(--muted); }

/* Hotel cards (trang chủ) */
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.card { text-decoration: none; color: inherit; display: flex; flex-direction: column; }
.card .media { aspect-ratio: 4 / 3; border-radius: var(--radius); overflow: hidden; background: var(--jade-soft); }
.card .media img { width: 100%; height: 100%; object-fit: cover; }
.card h3 { margin: 12px 0 2px; }
.card:hover h3 { color: var(--jade); }
.price { font-weight: 800; color: var(--jade-ink); font-variant-numeric: tabular-nums; }
.price small { font-weight: 500; color: var(--muted); font-size: 13px; }
.placeholder { width: 100%; height: 100%; display: grid; place-items: center; font-size: 42px; font-weight: 800; color: var(--jade); background: var(--jade-soft); }

/* Listing */
.listing { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 32px; padding: 28px 0 56px; }
.filters { position: sticky; top: 86px; align-self: start; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.filters fieldset { border: 0; padding: 0; margin: 0 0 18px; }
.filters legend { font-weight: 700; margin-bottom: 8px; font-size: 15px; }
.filters .check { font-size: 14px; margin-bottom: 6px; }
.price-range { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.result { display: grid; grid-template-columns: 260px minmax(0, 1fr) 210px; gap: 20px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.result .media { aspect-ratio: 4 / 3; border-radius: var(--radius); overflow: hidden; background: var(--jade-soft); }
.result .media img { width: 100%; height: 100%; object-fit: cover; }
.result h3 a { color: var(--ink); text-decoration: none; }
.result h3 a:hover { color: var(--jade); }
.result .side { text-align: right; display: flex; flex-direction: column; align-items: flex-end; justify-content: space-between; gap: 8px; }
.result .price { font-size: 22px; }
.tag { display: inline-block; font-size: 12.5px; font-weight: 600; padding: 2px 8px; border-radius: 4px; background: var(--jade-soft); color: var(--jade); }
.tag-deal { background: var(--saffron-soft); color: var(--saffron-dark); }
.summary-bar { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 6px; }

/* Hotel page */
.hotel-head { padding: 28px 0 18px; display: flex; justify-content: space-between; gap: 20px; align-items: flex-end; flex-wrap: wrap; }
.gallery { display: grid; grid-template-columns: 2fr 1fr; gap: 8px; height: 420px; }
.gallery .main { border-radius: var(--radius); overflow: hidden; background: var(--jade-soft); }
.gallery .main img { width: 100%; height: 100%; object-fit: cover; }
.gallery .thumbs { display: grid; grid-template-columns: 1fr 1fr; grid-auto-rows: 1fr; gap: 8px; }
.gallery .thumbs button { padding: 0; border: 0; border-radius: var(--radius); overflow: hidden; cursor: pointer; background: var(--jade-soft); }
.gallery .thumbs img { width: 100%; height: 100%; object-fit: cover; }
.stay-bar { background: var(--mist); border-radius: var(--radius); padding: 16px; margin: 24px 0; display: grid; grid-template-columns: 1fr 1fr .7fr .7fr .7fr auto; gap: 12px; align-items: end; }
.stay-bar .ages-row { grid-column: 1 / -1; align-items: center; }
.stay-bar .ages-row::before { content: "Tuổi trẻ em:"; font-size: 13px; font-weight: 600; color: var(--muted); }
.hotel-body { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 40px; padding-bottom: 56px; }
.deals { display: grid; gap: 8px; margin-bottom: 24px; }
.deal { border-left: 4px solid var(--saffron); background: var(--saffron-soft); padding: 10px 14px; border-radius: 0 var(--radius) var(--radius) 0; }
.room { border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 20px; overflow: hidden; }
.room-head { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 16px; padding: 16px; }
.room-head .media { aspect-ratio: 4 / 3; border-radius: 6px; overflow: hidden; background: var(--jade-soft); }
.room-head .media img { width: 100%; height: 100%; object-fit: cover; }
.specs { display: flex; flex-wrap: wrap; gap: 6px 16px; color: var(--muted); font-size: 14px; margin-top: 6px; }
.option { display: grid; grid-template-columns: minmax(0, 1fr) 220px; gap: 16px; padding: 16px; border-top: 1px solid var(--line); }
.option .buy { text-align: right; }
.option .total { font-size: 24px; font-weight: 800; font-variant-numeric: tabular-nums; color: var(--jade-ink); }
.option .was { color: var(--faint); text-decoration: line-through; font-size: 14px; }
.option.unavailable { background: var(--mist); }
.aside-box { border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-bottom: 20px; }
.aside-box h3 { font-size: 16px; margin-bottom: 8px; }
.amenities { columns: 2; padding-left: 18px; margin: 0; font-size: 15px; }

/* Dải giá từng đêm – điểm nhấn của trang */
.nights { display: flex; gap: 4px; margin-top: 10px; overflow-x: auto; padding-bottom: 4px; }
.night { flex: 0 0 auto; min-width: 74px; border: 1px solid var(--line); border-radius: 6px; padding: 6px 8px; font-size: 12px; line-height: 1.35; background: var(--white); }
.night b { display: block; font-size: 13.5px; font-variant-numeric: tabular-nums; color: var(--ink); }
.night.we { border-color: #f1c98d; background: var(--saffron-soft); }
.night .d { color: var(--muted); }
.legend { font-size: 12.5px; color: var(--muted); display: flex; gap: 14px; margin-top: 4px; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 4px; vertical-align: -1px; border: 1px solid var(--line); }
.legend i.we { background: var(--saffron-soft); border-color: #f1c98d; }

/* Checkout */
.checkout { display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: 36px; padding: 32px 0 56px; }
.summary { border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; position: sticky; top: 86px; align-self: start; }
.summary table { width: 100%; border-collapse: collapse; font-size: 15px; }
.summary td { padding: 6px 0; vertical-align: top; }
.summary td:last-child { text-align: right; font-variant-numeric: tabular-nums; }
.summary .grand td { border-top: 1px solid var(--line); padding-top: 12px; font-size: 20px; font-weight: 800; color: var(--jade-ink); }
.steps { counter-reset: s; list-style: none; padding: 0; margin: 20px 0; }
.steps li { counter-increment: s; position: relative; padding-left: 40px; margin-bottom: 14px; }
.steps li::before { content: counter(s); position: absolute; left: 0; top: 0; width: 28px; height: 28px; border-radius: 50%; background: var(--jade); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 14px; }
.receipt { max-width: 720px; margin: 40px auto 64px; }
.qr { display: grid; grid-template-columns: 240px 1fr; gap: 24px; align-items: start; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.kv { display: grid; grid-template-columns: 140px 1fr; gap: 8px 12px; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; font-weight: 600; }

/* Pagination */
.pagination { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 24px; }
.pagination a, .pagination span { padding: 6px 12px; border: 1px solid var(--line); border-radius: 6px; color: var(--ink); text-decoration: none; font-size: 14px; }
.pagination .current { background: var(--jade); border-color: var(--jade); color: #fff; }
.pagination .disabled { color: var(--faint); }

/* Footer */
.site-footer { background: var(--jade-ink); color: #c3d8d4; padding: 40px 0; font-size: 15px; }
.site-footer .wrap { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
.site-footer a { color: #fff; }
.site-footer strong { color: #fff; display: block; margin-bottom: 6px; }

@media (max-width: 1000px) {
  .hero .wrap, .hotel-body, .checkout { grid-template-columns: minmax(0, 1fr); }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .listing { grid-template-columns: minmax(0, 1fr); }
  .filters { position: static; }
  .result { grid-template-columns: 200px minmax(0, 1fr); }
  .result .side { grid-column: 1 / -1; flex-direction: row; align-items: center; text-align: left; }
  .stay-bar { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .summary { position: static; }
}
@media (max-width: 640px) {
  .site-nav a:not(.hotline) { display: none; }
  .hero { padding: 36px 0 44px; }
  .cards { grid-template-columns: 1fr; }
  .result, .room-head, .option, .qr { grid-template-columns: minmax(0, 1fr); }
  .room-head .media { max-width: 220px; }
  .kv { grid-template-columns: 110px minmax(0, 1fr); }
  .option .buy { text-align: left; }
  .gallery { grid-template-columns: 1fr; height: auto; }
  .gallery .main { aspect-ratio: 4 / 3; }
  .gallery .thumbs { grid-template-columns: repeat(4, 1fr); }
  .form-grid, .search-grid { grid-template-columns: minmax(0, 1fr); }
  .site-footer .wrap { grid-template-columns: 1fr; }
  .amenities { columns: 1; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }

[hidden] { display: none !important; }