html {
  font-size: 14px;
}

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

.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 #258cfb;
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
  color: var(--bs-secondary-color);
  text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
  text-align: start;
}

/* ─── FAB buttons ────────────────────────────────────────────────── */
.fab-container {
  position: fixed;
  bottom: 24px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 1050;
}

.fab {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  text-decoration: none;
  color: #fff;
  box-shadow: 0 3px 10px rgba(0,0,0,.25);
  transition: transform .15s, box-shadow .15s;
}

.fab:hover {
  transform: scale(1.1);
  box-shadow: 0 5px 16px rgba(0,0,0,.35);
  color: #fff;
}

.fab-zalo  { background: #0068ff; }
.fab-phone { background: #28a745; }
.fab-email { background: #fd7e14; }

/* ─── Chat widget ────────────────────────────────────────────────── */
.chat-messages { font-size: 0.875rem; }
.chat-msg { margin-bottom: 6px; word-break: break-word; }

/* ─── Room card ──────────────────────────────────────────────────── */
.room-card { transition: transform .15s; }
.room-card:hover { transform: translateY(-3px); }
.room-thumb { height: 180px; object-fit: cover; }