:root {
  --ui-brand: #f04438;
  --ui-brand-dark: #d92d20;
  --ui-brand-soft: #fff1ef;
  --ui-accent: #2563eb;
  --ui-ink: #182230;
  --ui-muted: #667085;
  --ui-line: #e4e7ec;
  --ui-surface: #ffffff;
  --ui-bg: #f5f7fb;
  --ui-success: #067647;
  --ui-danger: #b42318;
  --ui-radius: 14px;
  --ui-radius-sm: 10px;
  --ui-shadow: 0 10px 30px rgba(16, 24, 40, 0.08);
  --ui-shadow-sm: 0 3px 12px rgba(16, 24, 40, 0.07);
}

html {
  color-scheme: light;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

body {
  margin: 0;
  color: var(--ui-ink);
  background: var(--ui-bg);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; }

a {
  color: var(--ui-accent);
  text-underline-offset: 3px;
}

a:hover { color: #1d4ed8; }

h1, h2, h3, h4 {
  color: var(--ui-ink);
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.container,
.wrap,
.card,
.panel,
.form-box,
.login-box,
.post-box,
.modal-content {
  border-color: var(--ui-line) !important;
}

.container,
.wrap {
  width: min(100% - 28px, 1180px) !important;
  margin-inline: auto !important;
}

.card,
.panel,
.form-box,
.login-box,
.post-box,
.modal-content {
  background: var(--ui-surface) !important;
  border-radius: var(--ui-radius) !important;
  box-shadow: var(--ui-shadow-sm);
}

.header,
.top-bar,
.topbar,
.topbar-inner {
  border-color: var(--ui-line) !important;
}

input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]),
select,
textarea {
  min-height: 44px;
  width: 100%;
  color: var(--ui-ink);
  background: #fff;
  border: 1px solid #d0d5dd !important;
  border-radius: var(--ui-radius-sm) !important;
  padding: 10px 12px !important;
  font: inherit;
  outline: none;
  transition: border-color .16s ease, box-shadow .16s ease, background-color .16s ease;
}

textarea { min-height: 112px; resize: vertical; }

input::placeholder,
textarea::placeholder { color: #98a2b3; }

input:focus,
select:focus,
textarea:focus {
  border-color: var(--ui-accent) !important;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, .12) !important;
}

button,
.btn,
.back-btn,
.btn-search,
.search-button,
.btn-manage,
.load-more,
.btn-load-more,
a.btn {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 9px 15px !important;
  border: 1px solid transparent !important;
  border-radius: var(--ui-radius-sm) !important;
  font: inherit;
  font-weight: 700 !important;
  line-height: 1.2;
  text-decoration: none !important;
  cursor: pointer;
  transition: transform .14s ease, box-shadow .14s ease, filter .14s ease;
}

button:hover,
.btn:hover,
.back-btn:hover,
.btn-search:hover,
.search-button:hover,
.btn-manage:hover,
.load-more:hover,
.btn-load-more:hover,
a.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(16, 24, 40, .12);
  filter: brightness(.98);
}

button:active,
.btn:active { transform: translateY(0); }

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(37, 99, 235, .28);
  outline-offset: 2px;
}

.primary,
.search-button,
.btn-search,
.btn-load-more,
.load-more,
.btn-manage,
button[type="submit"] {
  color: #fff !important;
  background: linear-gradient(135deg, var(--ui-brand), #f97316) !important;
}

.danger,
.delete,
.delete-btn,
.btn-delete {
  color: #fff !important;
  background: var(--ui-danger) !important;
}

.success { color: var(--ui-success) !important; }
.error { color: var(--ui-danger) !important; }
.muted, .meta, .note, .hint, .small { color: var(--ui-muted) !important; }

.alert,
.notice,
.msg {
  padding: 11px 13px !important;
  border: 1px solid var(--ui-line) !important;
  border-radius: var(--ui-radius-sm) !important;
}

.alert.success,
.notice { background: #ecfdf3 !important; border-color: #abefc6 !important; }
.alert.error { background: #fef3f2 !important; border-color: #fecdca !important; }

.search-box,
.searchbar,
.search-form,
.filter-form {
  border: 1px solid var(--ui-line) !important;
  border-radius: var(--ui-radius) !important;
  background: rgba(255, 255, 255, .96) !important;
  box-shadow: var(--ui-shadow-sm) !important;
}

.searchbar,
.search-form,
.filter-form { padding: 12px !important; }

.room-list {
  gap: 14px !important;
}

.room,
.room-item,
.item,
.list .row {
  border: 1px solid var(--ui-line) !important;
  border-radius: var(--ui-radius) !important;
  background: var(--ui-surface) !important;
  box-shadow: var(--ui-shadow-sm);
  overflow: hidden;
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}

.room:hover,
.room-item:hover,
.item:hover,
.list .row:hover {
  transform: translateY(-2px);
  border-color: #fda29b !important;
  box-shadow: var(--ui-shadow);
}

.room-image,
.room > img,
.room-item > img,
.post-image {
  object-fit: cover;
  background: #eef2f6;
}

.info,
.room-info,
.item .main { padding: 13px !important; }

.price,
.salary,
.badge,
.tag-hetphong {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  border-radius: 999px !important;
  font-weight: 700 !important;
}

.price,
.salary { color: var(--ui-success) !important; background: #ecfdf3 !important; }

.tabs-wrapper,
.category-tabs {
  scrollbar-width: none;
}

.tabs-wrapper::-webkit-scrollbar,
.category-tabs::-webkit-scrollbar { display: none; }

.tab,
.tab-btn,
.category-tabs button {
  border-radius: 999px !important;
  white-space: nowrap;
}

.tab.active,
.tab-btn.active,
.category-tabs button.active {
  color: #fff !important;
  background: var(--ui-ink) !important;
}

table {
  width: 100%;
  border-collapse: separate !important;
  border-spacing: 0;
  background: #fff;
  border: 1px solid var(--ui-line);
  border-radius: 12px;
  overflow: hidden;
}

th {
  color: #344054;
  background: #f8fafc !important;
  font-size: 13px;
  font-weight: 700;
}

th, td {
  padding: 11px 12px !important;
  border-color: var(--ui-line) !important;
  vertical-align: middle;
}

tr:hover td { background: #fcfcfd; }

.pager {
  justify-content: center;
}

.pager a,
.pager span {
  min-width: 38px;
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 9px !important;
}

.pager .active { background: var(--ui-ink) !important; color: #fff !important; }

.bottom-nav,
nav.bottom-nav {
  background: rgba(255, 255, 255, .96) !important;
  border-top: 1px solid var(--ui-line) !important;
  box-shadow: 0 -8px 24px rgba(16, 24, 40, .08) !important;
  backdrop-filter: blur(14px);
}

.nav-item { color: #475467 !important; }
.nav-item:hover, .nav-item.active { color: var(--ui-brand) !important; }

.ui-skip-link {
  position: fixed;
  z-index: 99999;
  top: 8px;
  left: 8px;
  padding: 9px 13px;
  color: #fff;
  background: var(--ui-ink);
  border-radius: 9px;
  transform: translateY(-150%);
  transition: transform .15s ease;
}

.ui-skip-link:focus { transform: translateY(0); }

.ui-back-to-top {
  position: fixed;
  z-index: 998;
  right: 16px;
  bottom: 82px;
  width: 44px;
  min-height: 44px;
  padding: 0 !important;
  border-radius: 50% !important;
  color: #fff !important;
  background: var(--ui-ink) !important;
  box-shadow: var(--ui-shadow-sm);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
}

.ui-back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.ui-form-busy { cursor: progress; opacity: .82; }

@media (max-width: 768px) {
  body { padding-bottom: env(safe-area-inset-bottom); }

  .container,
  .wrap {
    width: min(100% - 20px, 1180px) !important;
  }

  .card,
  .panel,
  .form-box,
  .login-box,
  .post-box { border-radius: 12px !important; }

  .row,
  .field-row,
  .search-row,
  .searchbar,
  .filter-form {
    gap: 10px !important;
  }

  .searchbar,
  .filter-form { align-items: stretch !important; }

  .searchbar > *,
  .filter-form > * { min-width: 0 !important; }

  table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
  }

  th, td { padding: 9px 10px !important; }

  button,
  .btn,
  .btn-manage { min-height: 44px; }

  .ui-back-to-top { right: 12px; bottom: 78px; }
}

@media (max-width: 520px) {
  h1 { font-size: clamp(21px, 7vw, 28px); }
  h2 { font-size: clamp(18px, 6vw, 24px); }

  .room-list { gap: 10px !important; }

  .header,
  .top-bar,
  .topbar-inner { padding-inline: 12px !important; }

  .pager { gap: 5px !important; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}