/* Shared header overrides across all pages */
.nav-menu {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  column-gap: clamp(10px, 2vw, 18px);
  padding: 10px clamp(12px, 3vw, 28px);
}

.nav-brand {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-text {
  min-width: 0;
  margin-left: 0;
}

.dropdown {
  grid-column: 3;
  justify-self: end;
}

.nav-menu > :is(.quiz-header-btn, .coleso-header-btn) {
  grid-column: 2;
  justify-self: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: min(100%, 340px);
  max-width: 340px;
  min-width: 0;
  margin-right: 0;
  padding: 10px 16px;
  white-space: normal;
  text-align: center;
  line-height: 1.2;
}

@media (max-width: 900px) {
  .nav-menu {
    grid-template-columns: minmax(0, 1fr) auto;
    row-gap: 10px;
    column-gap: 10px;
    padding: 10px 12px;
  }

  .nav-brand {
    grid-column: 1 / 2;
    grid-row: 1;
    gap: 8px;
  }

  .brand-text {
    min-width: 0;
  }

  .brand-name,
  .brand-subtitle {
    white-space: normal;
  }

  .brand-name {
    font-size: clamp(18px, 5vw, 24px);
  }

  .brand-subtitle {
    font-size: clamp(12px, 3vw, 14px);
  }

  .dropdown {
    grid-column: 2 / 3;
    grid-row: 1;
    justify-self: end;
  }

  .nav-menu .dropdown ul li ul {
    width: min(320px, calc(100vw - 24px));
    margin-top: 12px;
  }

  .nav-menu > :is(.quiz-header-btn, .coleso-header-btn) {
    grid-column: 1 / -1;
    grid-row: 2;
    width: 100%;
    max-width: none;
    min-height: 44px;
    padding: 10px 14px;
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .nav-menu {
    padding: 8px 10px;
    column-gap: 8px;
    row-gap: 8px;
  }

  .theme-toggle {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
  }

  .nav-brand {
    gap: 8px;
  }

  .logo,
  .logo img {
    width: 44px;
    height: 44px;
  }

  .brand-name {
    font-size: 16px;
    line-height: 1.05;
  }

  .brand-subtitle {
    font-size: 11px;
    line-height: 1.1;
  }

  #menu {
    width: 34px;
    height: 34px;
  }

  .nav-menu .dropdown ul li ul {
    position: fixed;
    top: 68px;
    right: 10px;
    width: min(320px, calc(100vw - 20px));
    max-height: calc(100vh - 92px);
    overflow-y: auto;
    margin-top: 0;
    padding: 8px;
    z-index: 2000;
  }

  .nav-menu > :is(.quiz-header-btn, .coleso-header-btn) {
    min-height: 42px;
    padding: 10px 12px;
    font-size: 13px;
    border-radius: 18px;
  }
}

@media (max-width: 375px) {
  .brand-name {
    font-size: 15px;
  }

  .brand-subtitle {
    font-size: 10px;
  }

  .nav-menu > :is(.quiz-header-btn, .coleso-header-btn) {
    min-height: 40px;
    padding: 9px 10px;
    font-size: 12px;
  }
}