.header-shell {
  width: min(100%, calc(100% - 16px));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(245, 247, 250, 0.84);
  border-bottom: 1px solid rgba(214, 221, 231, 0.9);
}

.header-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 24px;
  min-height: 78px;
  padding: 0;
}

.split-flap-brand {
  display: inline-grid;
  gap: 6px;
  justify-items: start;
  text-decoration: none;
  color: #0f1722;
}

.split-flap-cells {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.split-flap-cell {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 42px;
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0) 46%, rgba(0, 0, 0, 0.16) 47%, rgba(0, 0, 0, 0.16) 53%, rgba(255, 255, 255, 0.04) 54%, rgba(255, 255, 255, 0.04) 100%),
    #17202a;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 10px 24px rgba(24, 33, 43, 0.16);
  color: #f8fbff;
  font-size: 1.4rem;
  font-weight: 800;
  line-height: 1;
}

.split-flap-cell.accent {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.14) 0%, rgba(255, 255, 255, 0) 46%, rgba(0, 0, 0, 0.14) 47%, rgba(0, 0, 0, 0.14) 53%, rgba(255, 255, 255, 0.05) 54%, rgba(255, 255, 255, 0.05) 100%),
    linear-gradient(180deg, #1f78ff 0%, #1158c8 100%);
}

.split-flap-caption {
  display: grid;
  grid-template-columns: repeat(3, 38px);
  gap: 6px;
  font-size: 0.7rem;
  line-height: 1.1;
  font-weight: 700;
  color: #516173;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.split-flap-caption span {
  text-align: center;
}

.split-flap-brand.is-complete .split-flap-caption {
  color: #2a3948;
}

.site-nav {
  display: flex;
  justify-self: end;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
}

.site-nav a,
.site-nav button {
  text-decoration: none;
  color: #31404f;
  font-size: 0.96rem;
  font-weight: 600;
  transition: color 160ms ease, opacity 160ms ease;
}

.site-nav a:hover,
.site-nav button:hover {
  color: #0f1722;
}

.nav-cta {
  padding: 10px 16px;
  border: 1px solid rgba(20, 99, 226, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 10px 30px rgba(20, 99, 226, 0.08);
}

.account-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-left: 2px;
}

.account-menu {
  position: relative;
  display: inline-flex;
}

.account-menu-trigger {
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  font: inherit;
}

.account-link-icon {
  position: relative;
  width: 18px;
  height: 18px;
  border: 1.6px solid #334455;
  border-radius: 999px;
}

.account-link-icon::before {
  content: "";
  position: absolute;
  top: 2px;
  left: 50%;
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: #334455;
  transform: translateX(-50%);
}

.account-link-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 10px;
  height: 5px;
  border: 1.6px solid #334455;
  border-bottom: 0;
  border-radius: 8px 8px 0 0;
  transform: translateX(-50%);
}

.account-link-icon[data-initials]:not([data-initials=""]) {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 0;
  background: linear-gradient(180deg, #1f78ff 0%, #1158c8 100%);
  box-shadow: 0 8px 18px rgba(20, 99, 226, 0.22);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 800;
}

.account-link-icon[data-initials]:not([data-initials=""])::before,
.account-link-icon[data-initials]:not([data-initials=""])::after {
  display: none;
}

.account-link-icon[data-initials]:not([data-initials=""])::before {
  content: attr(data-initials);
  display: block;
  position: static;
  width: auto;
  height: auto;
  background: transparent;
  transform: none;
}

.account-link-label {
  font-weight: 700;
}

.account-link-chevron {
  width: 8px;
  height: 8px;
  border-right: 1.6px solid #667788;
  border-bottom: 1.6px solid #667788;
  transform: rotate(45deg) translateY(-1px);
  transition: transform 160ms ease;
}

.account-menu[data-open="true"] .account-link-chevron {
  transform: rotate(-135deg) translateY(-1px);
}

.account-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 12px);
  width: min(290px, calc(100vw - 32px));
  z-index: 40;
}

.account-dropdown-shell {
  display: grid;
  gap: 16px;
  padding: 18px;
  border: 1px solid #d6dde7;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 28px 90px rgba(9, 17, 26, 0.16);
}

.account-dropdown-head {
  display: grid;
  gap: 10px;
}

.account-dropdown-kicker,
.account-dropdown-email {
  margin: 0;
}

.account-dropdown-kicker {
  color: #1463e2;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.account-dropdown-identity {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: center;
}

.account-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: linear-gradient(180deg, #1f78ff 0%, #1158c8 100%);
  color: #ffffff;
  font-size: 0.84rem;
  font-weight: 800;
}

.account-dropdown-name {
  display: block;
  font-size: 1rem;
}

.account-dropdown-email {
  margin-top: 4px;
  color: #5b6776;
  font-size: 0.88rem;
  line-height: 1.4;
}

.account-dropdown-links {
  display: grid;
  gap: 4px;
}

.account-dropdown-links a,
.account-dropdown-links button {
  padding: 10px 12px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #223344;
  font: inherit;
  font-weight: 600;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}

.account-dropdown-links a:hover,
.account-dropdown-links button:hover {
  background: #f4f7fb;
}

.account-dropdown-actions {
  padding-top: 4px;
  border-top: 1px solid rgba(214, 221, 231, 0.9);
}

.account-signout-btn {
  width: 100%;
  min-height: 44px;
  border: 1px solid #d6dde7;
  border-radius: 8px;
  background: #ffffff;
  color: #0f1722;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

@media (max-width: 760px) {
  .container {
    width: min(100%, calc(100% - 24px));
  }

  .header-row {
    grid-template-columns: 1fr;
    justify-items: start;
    gap: 16px;
    padding: 16px 0;
  }

  .site-nav {
    justify-self: stretch;
    justify-content: flex-start;
  }
}

@media (max-width: 860px) {
  .header-row {
    grid-template-columns: 1fr;
  }

  .site-nav {
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .header-shell {
    width: min(100% - 12px, 100%);
  }

  .site-header {
    position: static;
  }

  .header-row {
    padding: 18px 0;
  }

  .site-nav {
    gap: 12px;
  }
}