[hidden] {
  display: none !important;
}

.universal-header {
  position: relative;
  z-index: 50;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--header-border, var(--line));
  background: var(--header-bg);
  backdrop-filter: blur(16px);
  width: 100%;
  box-sizing: border-box;
  overflow: visible;
}

.universal-brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  color: inherit;
  text-decoration: none;
}

.universal-brand-mark {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  box-shadow: var(--brand-shadow);
}

.universal-brand-mark img {
  width: 28px;
  height: 28px;
}

.universal-brand-copy {
  display: grid;
  gap: 4px;
}

.universal-brand-copy small {
  color: var(--header-muted, var(--muted));
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.universal-brand-copy strong {
  font-family: var(--font-display, "Space Grotesk", sans-serif);
  font-size: 18px;
  letter-spacing: -0.03em;
}

.universal-nav-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-width: 0;
}

.universal-menu-toggle {
  display: none;
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(var(--surface-rgb), 0.82);
  color: var(--header-text, var(--text));
  font-weight: 700;
  cursor: pointer;
}

.universal-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: nowrap;
  min-width: 0;
}

.universal-header .universal-nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  color: var(--header-muted, var(--muted));
  font-weight: 700;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
  text-decoration: none;
  border-bottom: 0;
  white-space: nowrap;
}

.universal-header .universal-nav-link:hover,
.universal-header .universal-nav-link:focus-visible {
  color: var(--header-text, var(--text));
  background: color-mix(in srgb, var(--primary) 12%, transparent);
  transform: translateY(-1px);
  outline: none;
}

.universal-header .universal-nav-link.is-active {
  color: var(--header-text, var(--text));
  background: color-mix(in srgb, var(--primary) 16%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--primary) 16%, transparent);
}

.universal-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

.universal-header .universal-icon-btn {
  width: 46px;
  height: 46px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(var(--surface-rgb), 0.82);
  color: var(--header-text, var(--text));
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.universal-icon-btn:hover,
.universal-icon-btn:focus-visible {
  transform: translateY(-1px);
  border-color: var(--line-strong);
  outline: none;
}

.theme-switcher {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.theme-mode-switcher {
  display: inline-flex;
  align-items: center;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(var(--surface-rgb), 0.82);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.theme-mode-btn {
  min-height: 38px;
  min-width: 42px;
  padding: 0 12px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--header-muted, var(--muted));
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.theme-mode-btn:hover,
.theme-mode-btn:focus-visible {
  color: var(--header-text, var(--text));
  outline: none;
}

.theme-mode-btn.is-active {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
  box-shadow: var(--button-shadow);
}

.theme-mode-btn .icon-svg {
  width: 18px;
  height: 18px;
}

.theme-palette-field {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.theme-switcher-label {
  color: var(--header-muted, var(--muted));
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
}

.theme-switcher-select {
  min-height: 46px;
  min-width: 196px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(var(--surface-rgb), 0.82);
  color: var(--header-text, var(--text));
  font-weight: 700;
}

.icon-svg {
  width: 20px;
  height: 20px;
}

.profile-menu {
  position: relative;
}

.universal-header .profile-trigger {
  overflow: hidden;
  background: rgba(var(--surface-rgb), 0.9);
}

.universal-header .profile-menu-panel {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 90;
  width: min(360px, calc(100vw - 32px));
  padding: 14px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(var(--surface-rgb), 0.995), rgba(var(--surface-rgb), 0.975)),
    var(--surface-strong, rgba(var(--surface-rgb), 0.98));
  box-shadow: var(--surface-shadow);
  opacity: 0;
  transform: translateY(-8px) scale(0.98);
  transform-origin: top right;
  transition: opacity 0.18s ease, transform 0.18s ease;
  pointer-events: none;
}

.universal-header .profile-menu-panel.is-open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.universal-header .auth-user-panel,
.universal-header .profile-menu-list {
  display: grid;
  gap: 10px;
}

.universal-header .auth-user-panel {
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.universal-header .auth-user-meta {
  display: grid;
  gap: 4px;
}

.universal-header .auth-user-meta strong {
  font-size: 16px;
}

.universal-header .auth-user-meta span {
  color: var(--muted);
  font-size: 14px;
}

.universal-header .profile-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-height: 44px;
  padding: 0 14px;
  justify-content: flex-start;
  text-align: left;
  border: 1px solid var(--line);
  background: rgba(var(--surface-rgb), 0.92);
  color: var(--text);
}

.universal-header .profile-menu-item-highlight {
  justify-content: space-between;
}

.universal-header .profile-menu-icon {
  width: 18px;
  height: 18px;
  display: inline-grid;
  place-items: center;
  color: var(--primary);
}

.universal-header .profile-menu-icon .icon-svg {
  width: 18px;
  height: 18px;
}

.universal-header .profile-menu-section {
  display: grid;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.universal-header .profile-menu-section-title {
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.universal-header .profile-top-rhythm {
  display: grid;
  gap: 8px;
}

.universal-header .profile-top-rhythm .top-rhythm-card {
  min-height: 52px;
  border-radius: 16px;
}

.universal-auth-modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(1, 6, 16, 0.7);
  backdrop-filter: blur(12px);
}

.universal-auth-dialog {
  width: min(460px, 100%);
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(var(--surface-rgb), 1), rgba(var(--surface-rgb), 0.992)),
    var(--surface-strong, rgba(var(--surface-rgb), 0.98));
  box-shadow: var(--surface-shadow);
  color: var(--text);
  isolation: isolate;
}

.universal-auth-dialog .dialog-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.universal-auth-dialog .eyebrow {
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.universal-auth-dialog .section-title {
  margin: 8px 0 0;
  font-family: var(--font-display, "Space Grotesk", sans-serif);
  font-size: 32px;
  line-height: 1.05;
}

.universal-auth-form {
  margin-top: 18px;
  display: grid;
  gap: 12px;
}

.universal-auth-form .form-field {
  display: grid;
  gap: 8px;
}

.universal-auth-form .form-field-wide {
  grid-column: auto;
}

.universal-auth-form input {
  min-height: 50px;
  width: 100%;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(var(--surface-rgb), 0.98);
  color: var(--text);
}

.universal-auth-form input:focus {
  outline: none;
  border-color: var(--line-strong);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent);
}

.universal-auth-status {
  margin: 0;
  color: var(--muted);
}

.universal-auth-status.is-success {
  color: var(--success, #22c55e);
}

.universal-auth-status.is-error {
  color: var(--danger, #ef4444);
}

.universal-auth-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.universal-auth-primary,
.universal-auth-secondary,
.universal-auth-close {
  min-height: 44px;
  padding: 0 16px;
  border-radius: 14px;
  font-weight: 700;
  cursor: pointer;
}

.universal-auth-primary {
  border: 1px solid var(--button-border, var(--line));
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
  box-shadow: var(--button-shadow);
}

.universal-auth-secondary,
.universal-auth-close {
  border: 1px solid var(--line);
  background: rgba(var(--surface-rgb), 0.88);
  color: var(--text);
}

.universal-auth-primary:hover,
.universal-auth-secondary:hover,
.universal-auth-close:hover,
.universal-auth-primary:focus-visible,
.universal-auth-secondary:focus-visible,
.universal-auth-close:focus-visible {
  outline: none;
  transform: translateY(-1px);
}

.universal-page-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 24px 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(var(--surface-rgb), 0.78);
}

.universal-page-toolbar .top-rhythm {
  width: min(100%, 440px);
  margin: 0 auto;
}

.universal-page-toolbar .top-actions {
  margin-left: auto;
}

@media (max-width: 1040px) {
  .universal-header {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .universal-nav-wrap {
    justify-content: flex-end;
  }

  .universal-menu-toggle {
    display: inline-flex;
    align-items: center;
  }

  .universal-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    padding: 14px;
    border-radius: 20px;
    border: 1px solid var(--line);
    background: rgba(var(--surface-rgb), 0.98);
    box-shadow: var(--surface-shadow);
    justify-content: flex-start;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.18s ease, transform 0.18s ease;
    z-index: 95;
  }

  .universal-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
}

@media (max-width: 820px) {
  .universal-header,
  .universal-page-toolbar {
    padding-left: 16px;
    padding-right: 16px;
  }

  .universal-header {
    grid-template-columns: 1fr;
  }

  .universal-nav-wrap,
  .universal-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .universal-actions {
    justify-content: flex-end;
  }

  .theme-switcher {
    flex: 1 1 auto;
    min-width: 0;
  }

  .theme-switcher-select {
    min-width: 0;
    width: 100%;
  }

  .theme-mode-switcher {
    width: 100%;
    justify-content: space-between;
  }

  .theme-mode-btn {
    flex: 1 1 50%;
  }

  .universal-page-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .universal-page-toolbar .top-rhythm {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .universal-header {
    gap: 14px;
    padding-top: 16px;
    padding-bottom: 16px;
  }

  .universal-brand {
    gap: 12px;
  }

  .universal-brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 14px;
  }

  .universal-brand-mark img {
    width: 24px;
    height: 24px;
  }

  .universal-brand-copy small {
    font-size: 10px;
    letter-spacing: 0.14em;
  }

  .universal-brand-copy strong {
    font-size: 16px;
    line-height: 1.1;
  }

  .universal-nav {
    left: 16px;
    right: 16px;
    flex-direction: column;
    align-items: stretch;
  }

  .universal-header .universal-nav-link {
    justify-content: flex-start;
  }

  .universal-nav-wrap {
    justify-content: flex-start;
  }

  .universal-menu-toggle {
    min-width: 108px;
  }

  .universal-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
    gap: 10px;
  }

  .theme-switcher {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
    width: 100%;
  }

  .theme-mode-switcher,
  .theme-switcher-select {
    width: 100%;
  }

  .theme-palette-field {
    display: none;
  }

  .profile-menu {
    justify-self: end;
  }

  .universal-header .profile-trigger {
    width: 44px;
    height: 44px;
  }

  .universal-header .profile-menu-panel {
    right: 0;
    width: min(320px, calc(100vw - 32px));
  }
}