.mail-compose-host {
  --composer-accent: var(--ui-accent);
  --composer-accent-hover: var(--ui-accent-hover);
  --composer-accent-foreground: var(--ui-accent-foreground);
  --composer-accent-ink: var(--ui-accent-ink);
  --composer-border: var(--ui-line);
  --composer-ink: var(--ui-ink);
  --composer-muted: var(--ui-muted);
  --composer-soft: var(--ui-subtle);
  color: var(--composer-ink);
  font-family: var(--ui-font);
}

#modal .mail-compose-host {
  position: fixed;
  right: 1.5rem;
  bottom: 0;
  z-index: 60;
  width: min(42rem, calc(100vw - 3rem));
  pointer-events: auto;
}

.mail-compose-window {
  display: flex;
  max-height: min(46rem, calc(100vh - 4rem));
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--ui-border-strong);
  border-bottom: 0;
  border-radius: var(--ui-radius-lg) var(--ui-radius-lg) 0 0;
  background: var(--ui-surface);
  box-shadow: var(--ui-window-shadow);
}

.mail-compose-window.is-expanded {
  position: fixed;
  top: 2rem;
  right: 2rem;
  bottom: 2rem;
  width: min(58rem, calc(100vw - 4rem));
  max-height: none;
  border-bottom: 1px solid var(--ui-border-strong);
  border-radius: var(--ui-radius-lg);
}

.mail-compose-window.is-minimized {
  width: 22rem;
  margin-left: auto;
}

.mail-compose-window.is-minimized .mail-compose-content,
.mail-compose-window.is-minimized .mail-compose-footer,
.mail-compose-window.is-minimized .mail-compose-notice {
  display: none;
}

#reply-composer .mail-compose-host {
  width: 100%;
}

#reply-composer .mail-compose-window {
  max-height: none;
  border: 1px solid var(--composer-border);
  border-radius: var(--ui-radius-lg);
  box-shadow: none;
}

.mail-compose-header {
  display: flex;
  min-height: 3rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 0.75rem 0.65rem 1rem;
  border-bottom: 1px solid var(--composer-border);
  background: var(--ui-canvas);
  color: var(--ui-ink);
  user-select: none;
}

#reply-composer .mail-compose-header {
  background: var(--ui-canvas);
  color: var(--composer-ink);
}

.mail-compose-title {
  overflow: hidden;
  font-size: 0.82rem;
  font-weight: 650;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mail-compose-draft-status {
  margin-left: 0.55rem;
  color: var(--ui-muted);
  font-size: 0.7rem;
  font-weight: 450;
}

#reply-composer .mail-compose-draft-status {
  color: var(--composer-muted);
}

.mail-compose-header-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.2rem;
}

.mail-compose-icon-button {
  display: inline-flex;
  width: 2rem;
  height: 2rem;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: var(--ui-radius-sm);
  background: transparent;
  color: inherit;
  cursor: pointer;
  transition: background-color var(--ui-state-duration) ease, color var(--ui-state-duration) ease;
}

.mail-compose-icon-button:hover {
  background: var(--ui-hover);
}

#reply-composer .mail-compose-icon-button:hover {
  background: var(--ui-hover);
}

.mail-compose-icon-button:focus-visible,
.mail-compose-tool:focus-visible,
.mail-compose-link:focus-visible,
.mail-compose-send:focus-visible,
.mail-compose-editor:focus-visible,
.mail-compose-source:focus-visible {
  outline: 2px solid var(--ui-focus);
  outline-offset: 3px;
}

.mail-compose-notice {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.55rem 1rem;
  border-bottom: 1px solid var(--ui-warning-line);
  background: var(--ui-warning-surface);
  color: var(--ui-warning);
  font-size: 0.72rem;
  line-height: 1.45;
}

.mail-compose-content {
  min-height: 0;
  overflow-y: auto;
  scrollbar-color: #c7ced8 transparent;
  scrollbar-width: thin;
}

.mail-compose-fields {
  padding: 0 1rem;
}

.mail-compose-field {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr) auto;
  min-height: 2.65rem;
  align-items: center;
  gap: 0.55rem;
  border-bottom: 1px solid var(--composer-border);
  transition: border-color var(--ui-state-duration) ease, box-shadow var(--ui-state-duration) ease;
}

.mail-compose-field:focus-within {
  border-bottom-color: color-mix(in srgb, var(--ui-focus) 55%, var(--composer-border));
  box-shadow: inset 0 -1px 0 color-mix(in srgb, var(--ui-focus) 32%, transparent);
}

.mail-compose-field:focus-within > label {
  color: var(--ui-ink);
}

.mail-compose-field > label,
.mail-compose-field-label {
  color: var(--composer-muted);
  font-size: 0.73rem;
  font-weight: 560;
}

.mail-compose-field input,
.mail-compose-field select {
  min-width: 0;
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--composer-ink);
  font: inherit;
  font-size: 0.83rem;
  line-height: 1.4;
}

.mail-compose-field input::placeholder {
  color: var(--ui-muted);
}

.mail-compose-field input:focus,
.mail-compose-field select:focus {
  outline: 0;
}

.mail-compose-field input[readonly] {
  color: var(--ui-muted);
  cursor: default;
}

.mail-compose-inline-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.mail-compose-link {
  border: 0;
  background: transparent;
  color: var(--composer-muted);
  cursor: pointer;
  font-size: 0.72rem;
  text-decoration: none;
}

.mail-compose-link:hover {
  color: var(--composer-accent-ink);
}

.mail-compose-recipient-panel {
  padding: 0.6rem 0 0.75rem 5.05rem;
  border-bottom: 1px solid var(--composer-border);
}

.mail-compose-recipient-panel input[type="text"] {
  width: 100%;
  padding: 0.42rem 0;
  border: 0;
  color: var(--composer-ink);
  font-size: 0.8rem;
}

.mail-compose-recipient-panel input[type="text"]:focus {
  outline: 0;
}

.mail-compose-recipient-panel input[type="text"]:focus-visible {
  outline: 2px solid var(--ui-focus);
  outline-offset: 3px;
}

.mail-compose-user-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
  margin-bottom: 0.45rem;
}

.mail-compose-user-option {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--ui-muted);
  cursor: pointer;
  font-size: 0.72rem;
}

.mail-compose-user-option input {
  accent-color: var(--composer-accent);
}

.mail-compose-options {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0 1.2rem;
  padding: 0.15rem 1rem;
  border-bottom: 1px solid var(--composer-border);
  background: var(--composer-soft);
}

.mail-compose-options .mail-compose-field {
  grid-template-columns: 4.5rem minmax(0, 1fr);
  border-bottom: 0;
}

.mail-compose-status,
.mail-compose-error {
  padding: 0.45rem 1rem;
  border-bottom: 1px solid var(--composer-border);
  background: var(--ui-subtle);
  color: var(--composer-muted);
  font-size: 0.72rem;
}

.mail-compose-error {
  border-bottom: 1px solid var(--ui-danger-line);
  background: var(--ui-danger-surface);
  color: var(--ui-danger);
}

.mail-compose-toolbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.15rem;
  padding: 0.4rem 0.75rem;
  border-bottom: 1px solid var(--composer-border);
  background: var(--composer-soft);
}

.mail-compose-tool {
  display: inline-flex;
  min-width: 1.9rem;
  height: 1.9rem;
  align-items: center;
  justify-content: center;
  padding: 0 0.42rem;
  border: 0;
  border-radius: var(--ui-radius-sm);
  background: transparent;
  color: var(--ui-muted);
  cursor: pointer;
  font-size: 0.72rem;
}

.mail-compose-tool:hover,
.mail-compose-tool.is-active {
  background: var(--ui-surface);
  color: var(--composer-accent-ink);
}

select.mail-compose-tool {
  width: auto;
  border: 1px solid var(--composer-border);
  background: var(--ui-surface);
}

.mail-compose-divider {
  width: 1px;
  height: 1.15rem;
  margin: 0 0.25rem;
  background: var(--ui-line);
}

.mail-compose-editor,
.mail-compose-source {
  display: block;
  width: 100%;
  min-height: 15rem;
  padding: 1rem;
  border: 0;
  background: var(--ui-surface);
  color: var(--ui-ink);
  font-size: 14px;
  line-height: 1.65;
  resize: vertical;
}

.mail-compose-window.is-expanded .mail-compose-editor,
.mail-compose-window.is-expanded .mail-compose-source {
  min-height: 24rem;
}

.mail-compose-editor {
  font-family: Arial, Helvetica, sans-serif;
}

.mail-compose-editor:focus,
.mail-compose-source:focus {
  outline: 0;
}

.mail-compose-editor:focus-visible,
.mail-compose-source:focus-visible {
  outline: 2px solid var(--ui-focus);
  outline-offset: -3px;
}

.mail-compose-editor:empty::before {
  color: var(--ui-muted);
  content: attr(data-placeholder);
  pointer-events: none;
}

.mail-compose-editor a {
  color: var(--composer-accent-ink);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.mail-compose-editor h1 { margin: 0.75rem 0 0.4rem; font-size: 1.5rem; font-weight: 650; }
.mail-compose-editor h2 { margin: 0.65rem 0 0.35rem; font-size: 1.25rem; font-weight: 650; }
.mail-compose-editor h3 { margin: 0.55rem 0 0.3rem; font-size: 1.05rem; font-weight: 650; }
.mail-compose-editor blockquote { margin: 0.6rem 0; padding-left: 0.75rem; border-left: 1px solid var(--ui-border-strong); color: var(--ui-muted); }
.mail-compose-editor pre { overflow-x: auto; padding: 0.55rem 0.7rem; border: 1px solid var(--composer-border); background: var(--composer-soft); font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.75rem; }
.mail-compose-editor ul,
.mail-compose-editor ol { margin: 0.4rem 0; padding-left: 1.5rem; }
.mail-compose-editor hr { margin: 0.8rem 0; border: 0; border-top: 1px solid var(--composer-border); }

.mail-compose-source {
  background: var(--ui-subtle);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.75rem;
}

.mail-preview-dialog {
  width: min(64rem, calc(100vw - 2rem));
  height: min(54rem, calc(100vh - 2rem));
  max-width: none;
  max-height: none;
  margin: auto;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--ui-border-strong);
  border-radius: var(--ui-radius-lg);
  background: var(--ui-surface);
  color: var(--ui-ink);
  box-shadow: var(--ui-window-shadow);
  opacity: 0;
  transform: translateY(8px) scale(0.985);
  transition: opacity 180ms ease, transform 180ms cubic-bezier(0.2, 0.8, 0.2, 1),
    overlay 180ms allow-discrete, display 180ms allow-discrete;
}

.mail-preview-dialog::backdrop {
  background: rgba(15, 23, 42, 0.52);
  opacity: 0;
  transition: opacity 180ms ease, overlay 180ms allow-discrete, display 180ms allow-discrete;
}

.mail-preview-dialog[open] {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.mail-preview-dialog[open]::backdrop {
  opacity: 1;
}

.mail-preview-dialog[data-closing] {
  opacity: 0;
  transform: translateY(8px) scale(0.985);
}

.mail-preview-dialog[data-closing]::backdrop {
  opacity: 0;
}

@starting-style {
  .mail-preview-dialog[open] {
    opacity: 0;
    transform: translateY(8px) scale(0.985);
  }

  .mail-preview-dialog[open]::backdrop {
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .mail-preview-dialog,
  .mail-preview-dialog::backdrop {
    transition: none;
  }
}

.mail-preview-shell {
  display: flex;
  height: 100%;
  min-height: 0;
  flex-direction: column;
}

.mail-preview-header {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--composer-border);
  background: var(--ui-surface);
}

.mail-preview-header h2 {
  margin: 0;
  color: var(--ui-ink);
  font-size: 0.92rem;
  font-weight: 680;
}

.mail-preview-header p {
  margin: 0.15rem 0 0;
  color: var(--ui-muted);
  font-size: 0.72rem;
}

.mail-preview-header-actions,
.mail-preview-viewport-toggle {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.mail-preview-viewport-toggle {
  padding: 0.2rem;
  border: 1px solid var(--composer-border);
  border-radius: var(--ui-radius-md);
  background: var(--ui-subtle);
}

.mail-preview-viewport-toggle button,
.mail-preview-back {
  display: inline-flex;
  min-height: 2rem;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0 0.65rem;
  border: 0;
  border-radius: var(--ui-radius-sm);
  background: transparent;
  color: var(--ui-muted);
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 580;
}

.mail-preview-viewport-toggle button:hover,
.mail-preview-viewport-toggle button.is-active {
  background: var(--ui-surface);
  color: var(--ui-ink);
}

.mail-preview-viewport-toggle button.is-active {
  box-shadow: inset 0 0 0 1px var(--composer-border);
}

.mail-preview-back {
  border: 1px solid var(--composer-border);
  background: var(--ui-surface);
  color: var(--ui-ink);
}

.mail-preview-back:hover {
  background: var(--ui-hover);
}

.mail-preview-viewport-toggle button:focus-visible,
.mail-preview-back:focus-visible {
  outline: 2px solid var(--ui-focus);
  outline-offset: 2px;
}

.mail-preview-metadata {
  display: grid;
  flex: 0 0 auto;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.4rem 1.4rem;
  margin: 0;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--composer-border);
  background: var(--ui-subtle);
}

.mail-preview-metadata > div {
  display: grid;
  min-width: 0;
  grid-template-columns: 3.5rem minmax(0, 1fr);
  align-items: baseline;
  gap: 0.45rem;
}

.mail-preview-metadata .mail-preview-subject {
  grid-column: 1 / -1;
}

.mail-preview-metadata dt {
  color: var(--ui-muted);
  font-size: 0.68rem;
  font-weight: 600;
}

.mail-preview-metadata dd {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  color: var(--ui-ink);
  font-size: 0.75rem;
  line-height: 1.45;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mail-preview-metadata dd.is-empty {
  color: var(--ui-disabled);
  font-style: italic;
}

.mail-preview-stage {
  display: flex;
  min-height: 0;
  flex: 1 1 auto;
  align-items: flex-start;
  justify-content: center;
  overflow: auto;
  padding: 1.5rem;
  background: var(--ui-canvas);
}

.mail-preview-device {
  flex: 0 0 auto;
  min-height: 100%;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.14);
  transition: width 180ms ease-out;
}

.mail-preview-device.is-desktop {
  width: 600px;
}

.mail-preview-device.is-mobile {
  width: 320px;
}

.mail-preview-device iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 36rem;
  border: 0;
  background: #fff;
}

.mail-compose-editor [data-signature="1"] {
  max-width: 100%;
  margin-top: 0.25rem;
  color: var(--ui-muted);
}

.mail-compose-editor [data-signature="1"] table {
  max-width: 100%;
}

.mail-compose-editor [data-signature="1"] img {
  max-width: 100%;
  height: auto;
}

.mail-compose-editor [data-signature="1"] a {
  color: inherit;
  text-decoration: inherit;
}

.mail-compose-attachments {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0 1rem 0.65rem;
}

.mail-compose-chip {
  display: inline-flex;
  max-width: 15rem;
  align-items: center;
  gap: 0.35rem;
  padding: 0.32rem 0.45rem 0.32rem 0.55rem;
  border: 1px solid var(--composer-border);
  border-radius: 999px;
  background: var(--ui-surface);
  color: var(--ui-muted);
  font-size: 0.72rem;
}

.mail-compose-chip-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mail-compose-chip button {
  display: inline-flex;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--ui-disabled);
  cursor: pointer;
}

.mail-compose-footer {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.65rem 0.75rem;
  border-top: 1px solid var(--composer-border);
  background: var(--ui-surface);
}

.mail-compose-send {
  min-width: 5.25rem;
  height: 2.25rem;
  margin-right: 0.35rem;
  padding: 0 1.05rem;
  border: 1px solid var(--composer-accent);
  border-radius: var(--ui-radius-sm);
  background: var(--composer-accent);
  color: var(--composer-accent-foreground);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 650;
  transition: background-color var(--ui-state-duration) ease, border-color var(--ui-state-duration) ease;
}

.mail-compose-send:hover {
  border-color: var(--composer-accent-hover);
  background: var(--composer-accent-hover);
}

.mail-compose-send:disabled {
  border-color: var(--ui-disabled-surface);
  background: var(--ui-disabled-surface);
  color: var(--ui-disabled);
  cursor: not-allowed;
}

.mail-compose-footer .mail-compose-tool:last-child {
  margin-left: auto;
}

.mail-compose-footer-note {
  margin-left: auto;
  color: var(--composer-muted);
  font-size: 0.68rem;
}

@media (max-width: 640px) {
  .mail-preview-dialog {
    width: 100vw;
    height: 100dvh;
    border: 0;
    border-radius: 0;
  }

  .mail-preview-header {
    align-items: flex-start;
    flex-wrap: wrap;
    padding: 0.75rem 0.8rem;
  }

  .mail-preview-header-actions {
    width: 100%;
    justify-content: space-between;
  }

  .mail-preview-metadata {
    grid-template-columns: 1fr;
    padding: 0.65rem 0.8rem;
  }

  .mail-preview-metadata .mail-preview-subject {
    grid-column: auto;
  }

  .mail-preview-stage {
    justify-content: flex-start;
    padding: 0.75rem;
  }

  #modal .mail-compose-host {
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    width: 100vw;
  }

  #modal .mail-compose-window,
  #modal .mail-compose-window.is-expanded,
  #modal .mail-compose-window.is-minimized {
    position: static;
    width: 100%;
    height: 100%;
    max-height: none;
    border: 0;
    border-radius: 0;
  }

  #modal .mail-compose-window.is-minimized {
    position: absolute;
    top: auto;
    bottom: 0;
    height: auto;
    border-top: 1px solid var(--ui-border-strong);
  }

  .mail-compose-content {
    flex: 1 1 auto;
  }

  .mail-compose-fields {
    padding: 0 0.8rem;
  }

  .mail-compose-field {
    grid-template-columns: 3.5rem minmax(0, 1fr) auto;
  }

  .mail-compose-recipient-panel {
    padding-left: 4.05rem;
  }

  .mail-compose-options {
    grid-template-columns: 1fr;
  }

  .mail-compose-options .mail-compose-field {
    grid-template-columns: 3.5rem minmax(0, 1fr);
  }

  .mail-compose-editor,
  .mail-compose-source,
  .mail-compose-window.is-expanded .mail-compose-editor,
  .mail-compose-window.is-expanded .mail-compose-source {
    min-height: 17rem;
  }

  .mail-compose-footer-note {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .mail-compose-host *,
  .mail-compose-host *::before,
  .mail-compose-host *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

.mail-compose-option-actions {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  padding-top: 10px;
  border-top: 1px solid var(--composer-border);
  font-size: 12px;
  color: var(--composer-muted);
}
.mail-compose-option-actions label { display: inline-flex; align-items: center; gap: 6px; }
.mail-compose-option-actions input { accent-color: var(--composer-accent); }
@media (max-width: 640px) {
  .mail-compose-header-actions > button:nth-child(-n+2) { display: none !important; }
  .mail-compose-header-actions > button, .mail-compose-footer .mail-compose-tool { min-width: 44px; min-height: 44px; }
  .mail-compose-footer { gap: 2px; }
  .mail-compose-footer > button:last-child { margin-left: auto; }
}