.settings-backdrop {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(6, 17, 14, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 220ms ease, visibility 220ms ease;
}

.settings-backdrop.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.settings-backdrop[hidden] {
  display: none;
}

.settings-backdrop:not([hidden]) {
  display: block;
}

.settings-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(100%, 380px);
  max-width: 100%;
  z-index: 70;
  display: flex;
  flex-direction: column;
  background: #fff;
  border-left: 1px solid #dfe5df;
  box-shadow: -12px 0 40px rgba(23, 33, 43, 0.18);
  transform: translateX(100%);
  visibility: hidden;
  pointer-events: none;
  transition: transform 280ms cubic-bezier(0.4, 0, 0.2, 1), visibility 280ms;
}

.settings-drawer.is-open {
  transform: translateX(0);
  visibility: visible;
  pointer-events: auto;
}

.settings-drawer--dark {
  background: linear-gradient(180deg, #0a1a15 0%, #06110e 100%);
  border-left-color: rgba(215, 228, 220, 0.14);
  color: #e8f0eb;
}

.settings-drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding:
    calc(var(--safe-top) + 14px)
    max(16px, var(--safe-right))
    14px
    max(16px, var(--safe-left));
  border-bottom: 1px solid #dfe5df;
  flex-shrink: 0;
}

.settings-drawer--dark .settings-drawer__head {
  border-bottom-color: rgba(215, 228, 220, 0.14);
}

.settings-drawer__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.settings-drawer__body {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 16px max(16px, var(--safe-right)) 16px max(16px, var(--safe-left));
}

.settings-drawer__hint {
  margin: 0 0 12px;
  font-size: 0.88rem;
  line-height: 1.55;
  color: #52616d;
}

.settings-drawer--dark .settings-drawer__hint {
  color: #9bb3a6;
}

.settings-drawer__field {
  display: grid;
  gap: 8px;
}

.settings-drawer__field label {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #23715d;
}

.settings-drawer--dark .settings-drawer__field label {
  color: #c8f06a;
}

.settings-drawer__field textarea {
  width: 100%;
  min-height: 220px;
  resize: vertical;
  border: 1px solid #b9c7bc;
  border-radius: 10px;
  padding: 12px;
  font: 0.92rem/1.55 ui-monospace, SFMono-Regular, Menlo, monospace;
  color: inherit;
  background: #f8faf8;
}

.settings-drawer--dark .settings-drawer__field textarea {
  border-color: rgba(215, 228, 220, 0.2);
  background: rgba(255, 255, 255, 0.04);
  color: #e8f0eb;
}

.settings-drawer__template-btn {
  margin-top: 8px;
  width: auto;
  min-width: 0;
  padding: 6px 12px;
  font-size: 0.82rem;
}

.settings-drawer__foot {
  display: flex;
  gap: 10px;
  padding: 14px max(16px, var(--safe-right)) calc(14px + var(--safe-bottom)) max(16px, var(--safe-left));
  border-top: 1px solid #dfe5df;
  flex-shrink: 0;
}

.settings-drawer--dark .settings-drawer__foot {
  border-top-color: rgba(215, 228, 220, 0.14);
}

.settings-drawer__foot button {
  flex: 1 1 auto;
  min-height: var(--touch-min);
}

.settings-drawer__foot .quiet {
  background: transparent;
  color: inherit;
  border: 1px solid currentColor;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-min);
  min-height: var(--touch-min);
  padding: 0;
  border: 1px solid #b9c7bc;
  border-radius: 10px;
  background: transparent;
  color: inherit;
  cursor: pointer;
  flex-shrink: 0;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.header-link {
  display: inline-flex;
  align-items: center;
  min-height: var(--touch-min);
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid #b9c7bc;
  color: inherit;
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 650;
  white-space: nowrap;
}

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

@media (max-width: 480px) {
  .header-link {
    padding: 8px 10px;
    font-size: 0.82rem;
  }
}