/* site-chrome.css — header + menu tài khoản dùng chung cho mọi trang laci.vn.
   Tự chứa màu (không phụ thuộc biến :root của từng trang, giống footer.css). */

.site-header {
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: auto;
  padding: 22px clamp(20px, 4vw, 62px);
  font-family: Manrope, "DM Sans", sans-serif;
  background: transparent;
  background-image: none;
  transition: background .4s, backdrop-filter .4s, border-color .4s;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(9, 11, 11, .72);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border-bottom-color: rgba(241, 238, 230, .17);
}

.site-header__brand { display: flex; align-items: center; gap: 12px; }
.site-header__logo { display: flex; align-items: center; text-decoration: none; transition: opacity .25s; }
.site-header__logo img { display: block; width: auto; height: 30px; object-fit: contain; }
.site-header__logo:hover { opacity: .78; }

.site-nav { display: flex; align-items: center; gap: 30px; }
.site-nav > a {
  text-decoration: none;
  text-transform: uppercase;
  font-size: 10px;
  letter-spacing: .18em;
  color: rgba(241, 238, 230, .6);
  transition: color .25s;
  white-space: nowrap;
}
.site-nav > a:hover { color: #f1eee6; }
.site-nav__cta {
  color: #f1eee6 !important;
  border: 1px solid rgba(241, 238, 230, .17);
  border-radius: 999px;
  padding: 11px 17px;
}
.site-nav__cta:hover { border-color: #c4a36d; }

/* --- menu tài khoản --- */
.site-account { position: relative; display: flex; align-items: center; }
.site-account__btn {
  appearance: none;
  -webkit-appearance: none;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid rgba(241, 238, 230, .17);
  background: rgba(9, 11, 11, .36);
  color: #f1eee6;
  display: grid;
  place-items: center;
  cursor: pointer;
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transition: border-color .25s, color .25s;
}
.site-account__btn:hover,
.site-account__btn:focus-visible { color: #c4a36d; border-color: #c4a36d; }

.site-account__drop {
  display: none;
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: min(280px, calc(100vw - 44px));
  padding: 18px;
  z-index: 61;
  flex-direction: column;
  gap: 12px;
  background: rgba(11, 13, 13, .95);
  border: 1px solid rgba(241, 238, 230, .17);
  border-radius: 14px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, .45);
  -webkit-backdrop-filter: blur(24px);
  backdrop-filter: blur(24px);
}
.site-account__drop.is-open { display: flex; }

.auth-form, .account-signed-in { display: flex; flex-direction: column; gap: 11px; }
.auth-form[hidden], .account-signed-in[hidden] { display: none; }
.auth-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 9px;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: rgba(241, 238, 230, .6);
}
.auth-form input {
  font: inherit;
  font-size: 13px;
  color: #f1eee6;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(241, 238, 230, .17);
  border-radius: 8px;
  padding: 11px;
  outline: none;
}
.auth-form input:focus { border-color: #c4a36d; }
.site-account__drop button,
.site-account__drop a {
  appearance: none;
  -webkit-appearance: none;
  padding: 10px;
  border: 1px solid rgba(241, 238, 230, .17);
  border-radius: 8px;
  background: rgba(255, 255, 255, .04);
  color: #f1eee6;
  font: inherit;
  font-size: 11px;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}
.site-account__drop button:hover,
.site-account__drop a:hover { color: #c4a36d; background: rgba(255, 255, 255, .08); }
.auth-switch-mode {
  border: 0 !important;
  background: none !important;
  padding: 0 !important;
  color: rgba(241, 238, 230, .6) !important;
  text-decoration: underline;
}
.auth-status { min-height: 1em; text-align: center; font-size: 10px; color: rgba(241, 238, 230, .6); }
.auth-status.error { color: #ff9d8a; }
.auth-status.success { color: #c4a36d; }
.account-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(241, 238, 230, .17);
}
.account-info b { font-size: 12px; }
.account-info small { font-size: 10px; color: rgba(241, 238, 230, .6); }

/* --- responsive: thu gọn nav, giữ Quy hoạch + tài khoản + CTA --- */
@media (max-width: 900px) {
  .site-nav { gap: 18px; }
}
@media (max-width: 720px) {
  .site-header { padding: 18px clamp(16px, 4vw, 32px); padding-top: max(16px, env(safe-area-inset-top)); }
  .site-nav > a:not(.site-nav__cta):not([href="quy-hoach-1-500.html"]) { display: none; }
  .site-nav { gap: 12px; }
  .site-nav__cta { padding: 10px 14px; font-size: 9px; }
  /* dropdown neo theo màn hình, không lệch ra ngoài mép trái */
  .site-account__drop {
    position: fixed;
    top: 62px;
    right: 12px;
    left: auto;
    width: calc(100vw - 24px);
    max-width: 320px;
  }
}
@media (max-width: 460px) {
  .site-header__logo img { height: 26px; }
  .site-nav > a:not(.site-nav__cta) { display: none; }
  .site-nav > .site-account { display: flex; }
}