.portal-shell { min-height: 100vh; }
html, body, .portal-shell { max-width: 100%; overflow-x: clip; }
.portal-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--myair-border);
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(18px);
}
.portal-header__inner {
  display: flex;
  width: min(var(--myair-container), calc(100% - 36px));
  min-height: 70px;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}
.brand { display: inline-flex; align-items: center; text-decoration: none; }
.brand__wordmark {
  display: inline-flex;
  align-items: baseline;
  color: #111318;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -.045em;
}
.brand__wordmark span { color: var(--myair-primary); }
.brand__sub {
  margin-left: 10px;
  padding-left: 10px;
  border-left: 1px solid var(--myair-border);
  color: var(--myair-muted);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.portal-nav { display: flex; align-items: center; gap: 2px; }
.portal-nav a {
  border-radius: 8px;
  padding: 10px 11px;
  color: var(--myair-muted);
  font-size: 10px;
  font-weight: 700;
  text-decoration: none;
}
.portal-nav a:hover, .portal-nav a[aria-current="page"] { background: var(--myair-primary-soft); color: var(--myair-primary); }
.portal-nav a:focus-visible, .icon-button:focus-visible { outline: 3px solid rgba(23,105,224,.35); outline-offset: 2px; }
.portal-header__actions { display: flex; align-items: center; gap: 9px; }
.portal-main { width: min(var(--myair-container), calc(100% - 36px)); margin: 0 auto; padding: 38px 0 72px; }
.portal-footer { border-top: 1px solid var(--myair-border); background: #fff; }
.portal-footer__inner {
  display: flex;
  width: min(var(--myair-container), calc(100% - 36px));
  min-height: 72px;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--myair-muted);
  font-size: 9px;
  font-weight: 600;
}
.mobile-menu-button { display: none; }
.support-session-banner { position: relative; z-index: 50; display: flex; min-height: 52px; align-items: center; justify-content: center; gap: 22px; background: #5b21b6; padding: 10px 18px; color: white; font-size: 11px; box-shadow: 0 3px 12px rgba(46,16,101,.3); }
.support-session-banner > strong { border: 1px solid rgba(255,255,255,.55); border-radius: 999px; padding: 5px 9px; text-transform: uppercase; letter-spacing: .08em; }
.support-session-banner button { border: 1px solid white; border-radius: 7px; background: white; padding: 7px 10px; color: #4c1d95; font: inherit; font-weight: 800; cursor: pointer; }
.support-session-active .portal-main [data-book-service] { display: none !important; }
@media (max-width: 760px) { .support-session-banner { align-items: stretch; flex-direction: column; gap: 5px; } }
@media (max-width: 900px) {
  .portal-nav { position: fixed; top: 70px; right: 16px; left: 16px; display: none; max-height:calc(100dvh - 86px); overflow-y:auto; align-items: stretch; flex-direction: column; border: 1px solid var(--myair-border); border-radius: 12px; background: white; padding: 10px; box-shadow: var(--myair-shadow); }
  body.portal-menu-open .portal-nav { display: flex; }
  .portal-nav a { width: 100%; }
  .mobile-menu-button { display: inline-grid; }
}
@media (max-width: 620px) {
  .portal-header__inner, .portal-main, .portal-footer__inner { width: min(100% - 22px, var(--myair-container)); }
  .portal-header__actions .button { display: none; }
  .brand__sub { display: none; }
  .portal-footer__inner { align-items: flex-start; flex-direction: column; justify-content: center; padding-block: 18px; }
}
@media (max-width: 430px) { .portal-header__inner { gap: 10px; } .portal-header__actions { gap: 6px; } .icon-button { width: 44px; height: 44px; } }