/* Theme biển Vũng Tàu */
:root {
  --mau-bien-chinh: #0077b6;
  --mau-bien-dam: #023e8a;
  --mau-bien-nhat: #90e0ef;
  --mau-cat: #f4e4bc;
  --mau-trang: #ffffff;
  --mau-nen: #f8fbff;
}

html {
  font-size: 14px;
  position: relative;
  min-height: 100%;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

body {
  margin-bottom: 80px;
  background-color: var(--mau-nen);
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

/* Navbar chủ đề biển */
.navbar-bien {
  background: linear-gradient(135deg, var(--mau-bien-dam) 0%, var(--mau-bien-chinh) 100%) !important;
  box-shadow: 0 2px 12px rgba(0, 119, 182, 0.35);
}

.navbar-bien .navbar-brand,
.navbar-bien .nav-link {
  color: var(--mau-trang) !important;
}

.navbar-bien .nav-link:hover {
  color: var(--mau-bien-nhat) !important;
}

.navbar-bien .navbar-toggler {
  border-color: rgba(255, 255, 255, 0.5);
}

.navbar-bien .navbar-toggler-icon {
  filter: invert(1);
}

/* Footer */
.footer-bien {
  background: linear-gradient(135deg, var(--mau-bien-dam) 0%, var(--mau-bien-chinh) 100%);
  color: var(--mau-trang);
  padding: 1rem 0;
}

.footer-bien a {
  color: var(--mau-bien-nhat);
  text-decoration: none;
}

.footer-bien a:hover {
  color: var(--mau-trang);
}

/* Nút chính */
.btn-bien {
  background-color: var(--mau-bien-chinh);
  border-color: var(--mau-bien-chinh);
  color: var(--mau-trang);
}

.btn-bien:hover {
  background-color: var(--mau-bien-dam);
  border-color: var(--mau-bien-dam);
  color: var(--mau-trang);
}

/* Hero trang chủ */
.hero-bien {
  background: linear-gradient(rgba(2, 62, 138, 0.72), rgba(0, 119, 182, 0.62)),
    url("/images/banner/vung-tau.svg") center/cover no-repeat;
  background-color: var(--mau-bien-chinh);
  min-height: 320px;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--mau-trang);
  text-align: center;
  padding: 2.5rem 1.5rem;
}

.hero-bien--trangchu {
  min-height: 420px;
  padding-top: 3rem;
  padding-bottom: 2rem;
}

.hero-bien__noi-dung {
  max-width: 1100px;
  margin: 0 auto;
}

.hero-bien h1 {
  font-weight: 700;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hero-bien .tagline {
  font-size: 1.15rem;
  opacity: 0.95;
}

/* Ô tìm kiếm nhanh trên banner */
.tim-kiem-nhanh {
  max-width: 1000px;
  text-align: left;
  border-radius: 1rem !important;
}

.tim-kiem-nhanh .form-label {
  font-size: 0.85rem;
}

/* Giới thiệu Vũng Tàu */
.gioi-thieu-vt {
  background: var(--mau-trang);
  border-radius: 0.75rem;
  padding: 2rem;
  box-shadow: 0 4px 20px rgba(0, 119, 182, 0.08);
}

/* Bootstrap 5.0: .badge mặc định chữ trắng — badge nền sáng cần màu chữ tối */
.badge.bg-light,
.badge.badge-khu-vuc {
  color: var(--mau-bien-dam) !important;
  background-color: var(--mau-nen) !important;
  border: 1px solid rgba(0, 119, 182, 0.25);
  font-weight: 600;
}

a.badge.badge-khu-vuc:hover {
  background-color: var(--mau-bien-chinh) !important;
  color: var(--mau-trang) !important;
  border-color: var(--mau-bien-chinh);
}

.thong-ke-vt {
  background: var(--mau-nen);
  border-radius: 0.75rem;
  border: 1px solid rgba(0, 119, 182, 0.12);
}

/* Card khách sạn nổi bật */
.card-khach-san {
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card-khach-san:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(2, 62, 138, 0.15) !important;
}

.card-khach-san__anh {
  position: relative;
  height: 180px;
  overflow: hidden;
  background: var(--mau-bien-nhat);
}

.card-khach-san__anh img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-khach-san__sao {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  font-size: 0.75rem;
}

/* Card phòng kết quả tìm kiếm */
.card-phong-tim-kiem {
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card-phong-tim-kiem:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(2, 62, 138, 0.12) !important;
}

.card-phong-tim-kiem__anh {
  position: relative;
  height: 160px;
  overflow: hidden;
  background: var(--mau-bien-nhat);
}

.card-phong-tim-kiem__anh img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-phong-tim-kiem__anh .badge {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
}

/* Lịch sử đặt phòng */
.card-lich-su {
  transition: box-shadow 0.2s ease;
}

.card-lich-su:hover {
  box-shadow: 0 8px 20px rgba(2, 62, 138, 0.1) !important;
}

.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem var(--mau-bien-nhat);
}