html.settings-modal-open,
html.settings-modal-open body {
  overflow: hidden;
}

.system-modal-backdrop.settings-modal-backdrop {
  z-index: 1100;
  padding: 24px;
  background: var(--theme-overlay);
  backdrop-filter: blur(8px);
}

.system-modal.settings-modal-shell {
  width: min(1040px, calc(100vw - 48px));
  max-width: min(1040px, calc(100vw - 48px));
  max-height: min(88vh, 860px);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid var(--new-border, var(--theme-border));
  border-radius: 16px;
  background: var(--new-surface, var(--theme-paper));
  color: var(--new-ink, var(--theme-text));
  box-shadow: var(--theme-shadow-lg);
}

.settings-modal-shell .settings-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 74px;
  padding: 18px 22px;
  border-bottom: 1px solid color-mix(in srgb, var(--theme-primary-text) 16%, transparent);
  background: var(--new-sidebar, var(--theme-primary));
  color: var(--theme-primary-text);
}

.settings-modal-shell .settings-modal-header h2 {
  margin: 0;
  font-size: 22px;
  font-weight: 850;
  letter-spacing: -0.02em;
}

.settings-modal-shell .settings-modal-close {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--theme-primary-text) 20%, transparent);
  border-radius: 8px;
  background: color-mix(in srgb, var(--theme-primary-text) 8%, transparent);
  color: var(--theme-primary-text);
  cursor: pointer;
  font: inherit;
  font-size: 24px;
  line-height: 1;
}

.settings-modal-shell .settings-modal-header p {
  margin: 4px 0 0;
  color: color-mix(in srgb, var(--theme-primary-text) 78%, transparent);
  font-size: 12px;
  line-height: 1.4;
}

.settings-modal-layout {
  display: grid;
  min-height: 0;
  grid-template-columns: 220px minmax(0, 1fr);
}

.settings-modal-rail {
  display: grid;
  align-content: start;
  gap: 4px;
  padding: 16px 12px;
  border-right: 1px solid color-mix(in srgb, var(--theme-primary-text) 16%, transparent);
  background: var(--new-sidebar, var(--theme-primary));
}

.settings-modal-tab {
  display: flex;
  align-items: center;
  gap: 11px;
  width: 100%;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: color-mix(in srgb, var(--theme-primary-text) 82%, transparent);
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  font-weight: 800;
  line-height: 1.25;
  text-align: left;
}

.settings-modal-tab svg {
  flex: 0 0 auto;
  width: 21px;
  height: 21px;
  stroke: currentColor;
}

.settings-modal-tab:hover,
.settings-modal-tab.is-active {
  border-color: color-mix(in srgb, var(--theme-primary-text) 16%, transparent);
  background: color-mix(in srgb, var(--theme-primary-text) 12%, transparent);
  color: var(--theme-primary-text);
}

.settings-modal-tab:focus-visible,
.settings-modal-close:focus-visible {
  outline: 0;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--theme-primary-text) 38%, transparent);
}

.settings-modal-content {
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: var(--new-surface, var(--theme-paper));
}

.settings-modal-panel {
  height: 100%;
  min-height: 0;
  overflow-y: auto;
  padding: 26px;
  scrollbar-gutter: stable;
}

.settings-modal-panel[hidden] {
  display: none !important;
}

.settings-modal-panel-title {
  margin: 0 0 20px;
  color: var(--new-ink, var(--theme-text));
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.settings-modal-panel-title:focus {
  outline: 0;
}

.settings-modal-panel .system-settings-section,
.settings-modal-panel .settings-section {
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.settings-modal-panel .system-settings-section + .system-settings-section,
.settings-modal-panel .settings-section + .settings-section {
  margin-top: 0;
}

.settings-modal-panel .system-settings-title,
.settings-modal-panel .settings-section-title {
  margin: 0 0 14px;
  color: var(--new-ink, var(--theme-text));
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0.01em;
  text-transform: none;
}

.settings-modal-panel .identity-settings-section,
.settings-modal-panel .license-settings-section {
  max-width: 760px;
}

.settings-modal-panel .identity-settings-grid {
  gap: 14px;
  margin-top: 0;
}

.settings-modal-panel .identity-name-format-option {
  margin-top: 16px;
}

.settings-modal-panel .identity-primary-actions {
  position: sticky;
  bottom: -26px;
  z-index: 2;
  margin: 18px -26px 0;
  padding: 14px 26px;
  border-top: 1px solid var(--new-border, var(--theme-border));
  background: var(--new-surface, var(--theme-paper));
  box-shadow: var(--theme-footer-shadow);
}

.settings-modal-panel .identity-device-card {
  margin-top: 16px;
}

.settings-modal-panel .license-device-card,
.settings-modal-panel .license-generated-code,
.settings-modal-panel .license-code-item {
  border-radius: 10px;
}

.settings-modal-panel .system-settings-actions,
.settings-modal-panel .settings-actions {
  gap: 10px;
}

.settings-modal-panel .system-settings-note,
.settings-modal-panel .settings-note {
  max-width: 680px;
  margin-top: 10px;
  font-size: 11px;
  line-height: 1.45;
}

.settings-modal-panel .system-history-list,
.settings-modal-panel .history-list {
  max-height: min(54vh, 520px);
  overflow-y: auto;
  padding-right: 2px;
}

.settings-modal-panel .system-history-item,
.settings-modal-panel .history-item {
  border-radius: 10px;
}

@media (max-width: 720px) {
  .system-modal-backdrop.settings-modal-backdrop {
    align-items: stretch;
    padding: 0;
  }

  .system-modal.settings-modal-shell {
    width: 100vw !important;
    min-width: 100vw;
    max-width: 100vw !important;
    max-height: 100dvh;
    border: 0;
    border-radius: 0;
  }

  .settings-modal-shell .settings-modal-header {
    min-height: 64px;
    padding: 14px 16px;
  }

  .settings-modal-shell .settings-modal-header h2 {
    font-size: 19px;
  }

  .settings-modal-layout {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto minmax(0, 1fr);
  }

  .settings-modal-rail {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding: 10px 12px;
    border-right: 0;
    border-bottom: 1px solid color-mix(in srgb, var(--theme-primary-text) 16%, transparent);
    scrollbar-width: thin;
  }

  .settings-modal-tab {
    flex: 0 0 auto;
    width: auto;
    min-height: 42px;
    padding: 8px 10px;
    white-space: nowrap;
  }

  .settings-modal-tab svg {
    width: 18px;
    height: 18px;
  }

  .settings-modal-panel {
    padding: 20px 16px;
  }

  .settings-modal-panel .identity-primary-actions {
    bottom: -20px;
    margin: 18px -16px 0;
    padding: 12px 16px;
  }

  .settings-modal-panel .system-history-list,
  .settings-modal-panel .history-list {
    max-height: calc(100dvh - 260px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .settings-modal-tab,
  .settings-modal-close {
    transition: none;
  }
}