/* THÁI HÀ HUY HOTEL — tông xanh biển + trắng, sang & đơn giản */
:root {
  --blue-900: #073b5c;
  --blue-700: #0b6fa4;
  --blue-500: #1493c9;
  --blue-100: #e3f1f9;
  --blue-50: #f2f8fc;
  --ink: #1c2b36;
  --muted: #5b7183;
  --white: #ffffff;
  --gold: #c9a24b;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(7, 59, 92, 0.10);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Be Vietnam Pro", "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
.container { width: min(1120px, 92%); margin: 0 auto; }
section { padding: 72px 0; }
.section-title {
  text-align: center;
  color: var(--blue-900);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}
.section-sub {
  text-align: center;
  color: var(--muted);
  max-width: 640px;
  margin: 0 auto 40px;
}
.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--blue-500);
  margin-bottom: 10px;
}
.center { text-align: center; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--blue-100);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-700), var(--blue-500));
  color: #fff;
  display: grid; place-items: center;
  font-weight: 800; font-size: 1.05rem;
}
.brand-name { font-weight: 800; color: var(--blue-900); font-size: 1.08rem; line-height: 1.2; }
.brand-sub { font-size: 0.72rem; letter-spacing: 2.5px; color: var(--blue-500); font-weight: 600; }
.nav { display: flex; gap: 26px; align-items: center; }
.nav a { font-weight: 600; font-size: 0.95rem; color: var(--ink); }
.nav a:hover { color: var(--blue-700); }
.btn {
  display: inline-block;
  background: var(--blue-700);
  color: #fff !important;
  padding: 11px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 6px 18px rgba(11, 111, 164, 0.28);
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(11, 111, 164, 0.34); }
.btn-outline {
  background: transparent;
  color: var(--blue-700) !important;
  border: 2px solid var(--blue-700);
  box-shadow: none;
}
.nav-toggle { display: none; background: none; border: none; font-size: 1.6rem; color: var(--blue-900); cursor: pointer; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  color: #fff;
  padding: 110px 0 120px;
  background:
    radial-gradient(1000px 400px at 80% -10%, rgba(20, 147, 201, 0.55), transparent 60%),
    linear-gradient(160deg, #062a44 0%, #0b6fa4 70%, #1493c9 100%);
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute; inset: auto 0 0 0; height: 120px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 120'%3E%3Cpath fill='%23ffffff' d='M0,64 C240,110 480,20 720,55 C960,90 1200,110 1440,60 L1440,120 L0,120 Z'/%3E%3C/svg%3E") no-repeat bottom / cover;
}
.hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); letter-spacing: 1px; margin: 10px 0 14px; }
.hero p.lead { font-size: 1.08rem; opacity: 0.92; max-width: 620px; }
.hero-cta { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; position: relative; z-index: 2; }
.hero .btn-outline { color: #fff !important; border-color: #fff; }
.hero-badges { display: flex; gap: 26px; margin-top: 34px; flex-wrap: wrap; position: relative; z-index: 2; }
.hero-badges span { font-size: 0.92rem; opacity: 0.9; }
.hero-badges strong { display: block; font-size: 1.25rem; }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 44px; align-items: center; }
.about-photo {
  border-radius: var(--radius);
  min-height: 340px;
  background:
    linear-gradient(135deg, var(--blue-100), var(--blue-50)),
    repeating-linear-gradient(45deg, transparent, transparent 14px, rgba(11,111,164,0.05) 14px, rgba(11,111,164,0.05) 28px);
  display: grid; place-items: center;
  color: var(--blue-700);
  font-weight: 600;
  text-align: center;
  padding: 24px;
  border: 1px dashed var(--blue-500);
}
.about-list { list-style: none; margin-top: 20px; display: grid; gap: 12px; }
.about-list li { display: flex; gap: 12px; align-items: flex-start; }
.about-list .tick {
  flex: 0 0 26px; height: 26px; border-radius: 50%;
  background: var(--blue-100); color: var(--blue-700);
  display: grid; place-items: center; font-weight: 800;
}

/* ---------- Rooms ---------- */
.rooms { background: var(--blue-50); }
.room-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.room-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex; flex-direction: column;
  border-top: 5px solid var(--blue-500);
}
.room-card.featured { border-top-color: var(--gold); }
.room-photo {
  height: 170px;
  background: linear-gradient(135deg, var(--blue-700), var(--blue-500));
  display: grid; place-items: center;
  color: #fff; font-weight: 700; text-align: center; padding: 16px;
  font-size: 0.9rem;
}
.room-body { padding: 22px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.room-body h3 { color: var(--blue-900); font-size: 1.25rem; }
.room-meta { font-size: 0.9rem; color: var(--muted); }
.room-bed { font-size: 0.92rem; }
.price-row { margin-top: auto; padding-top: 12px; }
.price-old { text-decoration: line-through; color: var(--muted); font-size: 0.92rem; }
.price-new { color: var(--blue-700); font-size: 1.5rem; font-weight: 800; }
.price-note { font-size: 0.78rem; color: var(--muted); }
.promo-tag {
  display: inline-block; background: #e8f7ee; color: #1c7a3d;
  font-size: 0.75rem; font-weight: 700; padding: 3px 10px; border-radius: 999px;
}
.vat-note { text-align: center; color: var(--muted); font-size: 0.88rem; margin-top: 26px; }

/* ---------- Amenities ---------- */
.amen-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.amen {
  background: #fff; border: 1px solid var(--blue-100);
  border-radius: var(--radius); padding: 26px 18px; text-align: center;
}
.amen .icon { font-size: 1.9rem; }
.amen h4 { color: var(--blue-900); margin: 10px 0 4px; font-size: 1rem; }
.amen p { font-size: 0.86rem; color: var(--muted); }

/* ---------- Location ---------- */
.location { background: var(--blue-50); }
.loc-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 30px; align-items: stretch; }
.loc-info { display: grid; gap: 14px; align-content: start; }
.loc-item { background: #fff; border-radius: var(--radius); padding: 18px 20px; box-shadow: var(--shadow); }
.loc-item strong { color: var(--blue-900); display: block; margin-bottom: 2px; }
.map-wrap { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); min-height: 380px; }
.map-wrap iframe { width: 100%; height: 100%; min-height: 380px; border: 0; display: block; }

/* ---------- Contact / booking ---------- */
.booking-box {
  background: linear-gradient(150deg, var(--blue-900), var(--blue-700));
  color: #fff;
  border-radius: 20px;
  padding: 54px 40px;
  text-align: center;
  box-shadow: var(--shadow);
}
.booking-box h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 10px; }
.booking-box p { opacity: 0.9; max-width: 560px; margin: 0 auto 26px; }
.hotline-big {
  display: inline-block;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  letter-spacing: 1px;
  background: #fff;
  color: var(--blue-900);
  padding: 12px 34px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.booking-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.booking-actions .btn { background: #fff; color: var(--blue-900) !important; box-shadow: none; }
.booking-actions .btn.ghost { background: transparent; color: #fff !important; border: 2px solid #fff; }

/* ---------- Footer ---------- */
footer { background: var(--blue-900); color: #cfe3f0; padding: 44px 0 26px; font-size: 0.92rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 30px; margin-bottom: 26px; }
footer h4 { color: #fff; margin-bottom: 12px; font-size: 1rem; }
footer ul { list-style: none; display: grid; gap: 8px; }
footer a:hover { color: #fff; }
.copyright { border-top: 1px solid rgba(255,255,255,0.15); padding-top: 18px; text-align: center; font-size: 0.82rem; }

/* ---------- Floating call button (mobile) ---------- */
.call-float {
  display: none;
  position: fixed; right: 18px; bottom: 18px; z-index: 60;
  width: 58px; height: 58px; border-radius: 50%;
  background: var(--blue-700); color: #fff;
  place-items: center; font-size: 1.5rem;
  box-shadow: 0 8px 22px rgba(11,111,164,0.45);
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .room-grid { grid-template-columns: repeat(2, 1fr); }
  .amen-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .loc-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  section { padding: 52px 0; }
  .nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: #fff; flex-direction: column; padding: 18px; gap: 14px;
    border-bottom: 1px solid var(--blue-100);
  }
  .nav.open { display: flex; }
  .nav-toggle { display: block; }
  .room-grid { grid-template-columns: 1fr; }
  .call-float { display: grid; }
  .footer-grid { grid-template-columns: 1fr; }
}