/* Mailtabs — calm, information-dense mail UI. System fonts only (CSP: no external resources). */

/* ------------------------------------------------------------------ tokens */
:root {
  color-scheme: light;
  --bg: #f4f5f7;
  --surface: #ffffff;
  --surface-2: #f8f9fb;
  --surface-3: #eef0f3;
  --hover: #f3f4f7;
  --border: #e3e6eb;
  --border-strong: #cfd4dc;
  --text: #121826;
  --text-2: #3f4756;
  --text-3: #687183;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-fg: #ffffff;
  --accent-text: #4338ca;
  --accent-soft: #eef0ff;
  --accent-soft-2: #e0e3ff;
  --danger: #c81e1e;
  --danger-soft: #fdf0f0;
  --danger-border: #f5c6c6;
  --warning: #9a5b00;
  --warning-soft: #fff8e6;
  --warning-border: #f3d9a4;
  --success: #12753a;
  --success-soft: #edf8f1;
  --star: #e8a200;
  --unread: #4f46e5;
  --focus: 0 0 0 3px rgba(79, 70, 229, 0.35);
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
  --shadow-md: 0 4px 12px rgba(16, 24, 40, 0.08), 0 1px 3px rgba(16, 24, 40, 0.06);
  --shadow-lg: 0 24px 48px -12px rgba(16, 24, 40, 0.25), 0 4px 12px rgba(16, 24, 40, 0.08);
  --backdrop: rgba(15, 18, 28, 0.42);
  --skeleton: #eceef2;
  --skeleton-shine: #f6f7f9;

  --radius: 8px;
  --radius-sm: 6px;
  --radius-lg: 12px;
  --font: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, 'Liberation Mono', monospace;
  --topbar-h: 56px;
  --sidebar-w: 236px;
  --rail-w: 64px;
  --selected: #e8ebff;
  --sidebar-bg: var(--surface-2);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    color-scheme: dark;
    --bg: #0d1016;
    --surface: #141821;
    --surface-2: #181d27;
    --surface-3: #212736;
    --hover: #1b202b;
    --border: #262d3b;
    --border-strong: #353d4e;
    --text: #e7e9ee;
    --text-2: #b9bfcb;
    --text-3: #8b93a3;
    --accent: #5b5cf0;
    --accent-hover: #6b6cf5;
    --accent-fg: #ffffff;
    --accent-text: #a5adff;
    --accent-soft: #1f2347;
    --accent-soft-2: #2a2f5e;
    --danger: #f87171;
    --danger-soft: #2a1618;
    --danger-border: #5b2a2e;
    --warning: #f5b84b;
    --warning-soft: #2a2213;
    --warning-border: #5a4520;
    --success: #4ade80;
    --success-soft: #13261b;
    --star: #f5b400;
    --unread: #8b8ffb;
    --focus: 0 0 0 3px rgba(129, 140, 248, 0.45);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 24px 48px -12px rgba(0, 0, 0, 0.7), 0 4px 12px rgba(0, 0, 0, 0.4);
    --backdrop: rgba(0, 0, 0, 0.6);
    --skeleton: #1e2330;
    --skeleton-shine: #262c3b;
    --selected: #20264a;
  }
}

:root[data-theme='dark'] {
  color-scheme: dark;
  --bg: #0d1016;
  --surface: #141821;
  --surface-2: #181d27;
  --surface-3: #212736;
  --hover: #1b202b;
  --border: #262d3b;
  --border-strong: #353d4e;
  --text: #e7e9ee;
  --text-2: #b9bfcb;
  --text-3: #8b93a3;
  --accent: #5b5cf0;
  --accent-hover: #6b6cf5;
  --accent-fg: #ffffff;
  --accent-text: #a5adff;
  --accent-soft: #1f2347;
  --accent-soft-2: #2a2f5e;
  --danger: #f87171;
  --danger-soft: #2a1618;
  --danger-border: #5b2a2e;
  --warning: #f5b84b;
  --warning-soft: #2a2213;
  --warning-border: #5a4520;
  --success: #4ade80;
  --success-soft: #13261b;
  --star: #f5b400;
  --unread: #8b8ffb;
  --focus: 0 0 0 3px rgba(129, 140, 248, 0.45);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 24px 48px -12px rgba(0, 0, 0, 0.7), 0 4px 12px rgba(0, 0, 0, 0.4);
  --backdrop: rgba(0, 0, 0, 0.6);
  --skeleton: #1e2330;
  --skeleton-shine: #262c3b;
  --selected: #20264a;
}

/* -------------------------------------------------------------------- base */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

#app {
  height: 100%;
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

a {
  color: var(--accent-text);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}
button:disabled {
  cursor: not-allowed;
}

code {
  font-family: var(--mono);
  font-size: 0.92em;
  background: var(--surface-3);
  padding: 1px 5px;
  border-radius: 4px;
}

:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}

::selection {
  background: var(--accent-soft-2);
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.muted {
  color: var(--text-3);
}
.small {
  font-size: 12.5px;
}
.spacer {
  flex: 1;
}
.row-gap {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.center {
  text-align: center;
  align-items: center;
}
.noscript {
  padding: 24px;
  text-align: center;
}

.icon {
  flex: none;
  display: block;
}
.spin {
  animation: spin 0.9s linear infinite;
}
.rot-90 {
  transform: rotate(90deg);
}
.rot-180 {
  transform: rotate(180deg);
}
.icon {
  transition: transform 0.15s ease;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.spinner {
  display: inline-block;
  flex: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-right-color: transparent;
  opacity: 0.75;
  animation: spin 0.75s linear infinite;
  vertical-align: -0.15em;
}

.splash {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--text-3);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .spinner,
  .spin {
    animation-duration: 1.6s !important;
    animation-iteration-count: infinite !important;
  }
}

/* ----------------------------------------------------------------- buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 34px;
  padding: 0 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  font-weight: 500;
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
  transition: background-color 0.12s, border-color 0.12s, color 0.12s;
}
.btn:hover:not(:disabled) {
  background: var(--hover);
}
.btn:disabled {
  opacity: 0.55;
}
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}
.btn-danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}
.btn-danger:hover:not(:disabled) {
  filter: brightness(1.05);
  background: var(--danger);
}
.btn-ghost {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
  color: var(--text-2);
}
.btn-ghost:hover:not(:disabled) {
  background: var(--hover);
  color: var(--text);
}
.btn-danger-text {
  color: var(--danger);
}
.btn-danger-text:hover:not(:disabled) {
  background: var(--danger-soft);
  color: var(--danger);
}
.btn-sm {
  height: 28px;
  padding: 0 10px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}
.btn-block {
  width: 100%;
  height: 40px;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: var(--radius);
  border: 0;
  background: transparent;
  color: var(--text-2);
  transition: background-color 0.12s, color 0.12s;
}
.icon-btn:hover:not(:disabled) {
  background: var(--hover);
  color: var(--text);
}
.icon-btn:disabled {
  opacity: 0.45;
}

.link-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent-text);
  font-weight: 500;
  text-align: left;
}
.link-btn:hover {
  text-decoration: underline;
}
.link-btn:focus-visible {
  border-radius: 4px;
}

.kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 5px;
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: var(--surface);
  color: var(--text-2);
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1;
}

/* segmented control (filters, auth switch, theme) */
.segmented {
  display: inline-flex;
  padding: 3px;
  gap: 2px;
  border-radius: var(--radius);
  background: var(--surface-3);
}
.segment {
  height: 28px;
  padding: 0 12px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-2);
  font-weight: 500;
  white-space: nowrap;
}
.segment:hover {
  color: var(--text);
}
.segment[aria-pressed='true'],
.segment[aria-checked='true'] {
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow-sm);
}
.segmented-sm .segment {
  height: 26px;
  padding: 0 10px;
  font-size: 13px;
}

/* pills */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  max-width: 100%;
  height: 22px;
  padding: 0 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pill-neutral {
  background: var(--surface-3);
  color: var(--text-2);
}
.pill-accent {
  background: var(--accent-soft);
  color: var(--accent-text);
}
.pill-success {
  background: var(--success-soft);
  color: var(--success);
}
.pill-warning {
  background: var(--warning-soft);
  color: var(--warning);
}
.pill-danger {
  background: var(--danger-soft);
  color: var(--danger);
  display: inline-block;
  line-height: 22px;
}

.color-dot {
  display: inline-block;
  flex: none;
  border-radius: 50%;
}

.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-text);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.02em;
  user-select: none;
}
.avatar-lg {
  width: 38px;
  height: 38px;
  font-size: 14px;
}

/* ------------------------------------------------------------------- forms */
.form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.form.narrow {
  max-width: 380px;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.field-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
}
.field-hint {
  font-size: 12.5px;
  color: var(--text-3);
}
.field-hint a {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-weight: 500;
}
.field-indent {
  margin-left: 26px;
}
.fieldset {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 0;
  padding: 0;
  border: 0;
  min-width: 0;
}
.fieldset > legend {
  padding: 0;
  margin-bottom: 8px;
}

.input {
  width: 100%;
  height: 36px;
  padding: 0 10px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  transition: border-color 0.12s, box-shadow 0.12s;
}
.input::placeholder {
  color: var(--text-3);
  opacity: 0.85;
}
.input:hover {
  border-color: var(--text-3);
}
.input:focus,
.input:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--focus);
}
select.input {
  padding-right: 28px;
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-3) 50%), linear-gradient(135deg, var(--text-3) 50%, transparent 50%);
  background-position: calc(100% - 15px) 52%, calc(100% - 10px) 52%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
.input-inline {
  width: auto;
  height: 30px;
}
input[type='number'].input {
  -moz-appearance: textfield;
}

.input-row {
  display: flex;
  gap: 8px;
  align-items: center;
  position: relative;
}
.input-row .input {
  flex: 1;
}
.input-addon {
  position: absolute;
  right: 3px;
  top: 2px;
}
.input-row:has(.input-addon) .input {
  padding-right: 38px;
}

input[type='checkbox'],
input[type='radio'] {
  width: 16px;
  height: 16px;
  margin: 0;
  flex: none;
  accent-color: var(--accent);
}

.check-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.check-list.is-disabled .check-row {
  opacity: 0.5;
}
.check-row,
.radio-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 32px;
  padding: 4px 8px;
  margin: 0 -8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.check-row:hover,
.radio-row:hover {
  background: var(--hover);
}
.check-row.is-disabled {
  cursor: default;
  opacity: 0.7;
}
.check-row.is-disabled:hover {
  background: transparent;
}
.check-label {
  font-weight: 500;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.check-note {
  color: var(--text-3);
  font-size: 12.5px;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.add-inline {
  margin-top: 4px;
  align-self: flex-start;
}

.swatches {
  border: 0;
  margin: 0;
  padding: 0;
  min-width: 0;
}
.swatches > legend {
  padding: 0;
  margin-bottom: 8px;
}
.swatch-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.swatch {
  position: relative;
  display: inline-flex;
  cursor: pointer;
}
.swatch-dot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--swatch);
  color: #fff;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.08);
  transition: transform 0.12s;
}
.swatch-dot .icon {
  opacity: 0;
}
.swatch:hover .swatch-dot {
  transform: scale(1.08);
}
.swatch input:checked + .swatch-dot {
  box-shadow: 0 0 0 2px var(--surface), 0 0 0 4px var(--swatch);
}
.swatch input:checked + .swatch-dot .icon {
  opacity: 1;
}
.swatch input:focus-visible + .swatch-dot {
  box-shadow: 0 0 0 2px var(--surface), 0 0 0 4px var(--swatch), var(--focus);
}

.inline-error {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--danger-border);
  border-radius: var(--radius);
  background: var(--danger-soft);
  color: var(--danger);
  font-weight: 500;
}
.inline-error .icon {
  margin-top: 2px;
}
.success-text {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--success);
  font-weight: 500;
}

/* -------------------------------------------------------------- auth screen */
.auth-screen {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 32px 16px;
  background: radial-gradient(1200px 500px at 50% -10%, var(--accent-soft), transparent 70%), var(--bg);
}
.auth-card {
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-md);
}
.auth-card.center {
  align-items: center;
  text-align: center;
}
.auth-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}
.auth-title {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.auth-tagline {
  color: var(--text-3);
  font-size: 13.5px;
}
.auth-switch {
  display: flex;
}
.auth-switch .segment {
  flex: 1;
  height: 32px;
}
.auth-foot {
  text-align: center;
}
.auth-footer {
  text-align: center;
  max-width: 400px;
}

/* ------------------------------------------------------------- app layout */
.app {
  height: 100%;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.topbar {
  flex: none;
  display: flex;
  align-items: center;
  gap: 12px;
  height: var(--topbar-h);
  padding: 0 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
  width: calc(var(--sidebar-w) - 80px);
}
.brand-name {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.logo-mark {
  flex: none;
  display: block;
}

.search {
  position: relative;
  flex: 1;
  max-width: 640px;
  display: flex;
  align-items: center;
}
.search-icon {
  position: absolute;
  left: 11px;
  color: var(--text-3);
  pointer-events: none;
  display: flex;
}
.search-input {
  width: 100%;
  height: 38px;
  padding: 0 40px 0 36px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: var(--surface-3);
  color: var(--text);
  transition: background-color 0.12s, border-color 0.12s, box-shadow 0.12s;
}
.search-input::placeholder {
  color: var(--text-3);
}
.search-input:hover {
  border-color: var(--border-strong);
}
.search-input:focus {
  outline: none;
  background: var(--surface);
  border-color: var(--accent);
  box-shadow: var(--focus);
}
.search-input::-webkit-search-cancel-button {
  display: none;
}
.search-clear {
  position: absolute;
  right: 4px;
  width: 30px;
  height: 30px;
}
.search-kbd {
  position: absolute;
  right: 10px;
  pointer-events: none;
}
.search-input:focus ~ .search-kbd {
  display: none;
}

.topbar-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
}
.topbar-btn {
  width: 36px;
  height: 36px;
}
.topbar-btn.is-busy {
  color: var(--accent-text);
}

.menu-wrap {
  position: relative;
}
.avatar-btn {
  display: inline-flex;
  padding: 2px;
  border: 0;
  border-radius: 50%;
  background: transparent;
}
.avatar-btn:hover .avatar {
  background: var(--accent-soft-2);
}
.menu {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  z-index: 70; /* above docked composer windows (65), like the floating menus */
  min-width: 230px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-lg);
  animation: pop-in 0.12s ease-out;
}
.menu-header {
  padding: 8px 10px 10px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 6px;
}
.menu-name {
  font-weight: 600;
}
.menu-email {
  color: var(--text-3);
  font-size: 12.5px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  height: 36px;
  padding: 0 10px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text);
  text-align: left;
}
.menu-item .icon {
  color: var(--text-3);
}
.menu-item:hover,
.menu-item:focus-visible {
  background: var(--hover);
  box-shadow: none;
}
.menu-sep {
  height: 1px;
  margin: 6px 0;
  background: var(--border);
}

@keyframes pop-in {
  from {
    opacity: 0;
    transform: translateY(-4px) scale(0.98);
  }
}

/* ----------------------------------------------------------------- tab bar */
.tabbar {
  flex: none;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.tabbar-scroll {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 48px;
  padding: 0 12px;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  scroll-padding: 0 12px;
}
.tabbar-scroll::-webkit-scrollbar {
  display: none;
}
.tab {
  position: relative;
  flex: none;
  display: flex;
  align-items: center;
  height: 34px;
  border-radius: 999px;
  transition: background-color 0.12s;
}
.tab:hover {
  background: var(--hover);
}
.tab.is-active {
  background: var(--accent-soft);
}
.tab-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 34px;
  padding: 0 14px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--text-2);
  font-weight: 500;
  white-space: nowrap;
  user-select: none;
  -webkit-touch-callout: none;
}
.tab-btn .icon {
  color: var(--text-3);
}
.tab.is-active .tab-btn {
  color: var(--accent-text);
  font-weight: 650;
}
.tab.is-active .tab-btn .icon {
  color: var(--accent-text);
}
.tab-name {
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tab-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 18px;
  padding: 0 6px;
  border-radius: 999px;
  background: var(--surface-3);
  color: var(--text-2);
  font-size: 11.5px;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
}
.tab-badge.is-active {
  background: var(--accent);
  color: var(--accent-fg);
}
/* The ⋯ edit button is shown on the active tab (and when focused by keyboard);
   other tabs are edited by double-click / long-press, which avoids layout shift. */
.tab-edit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 0;
  height: 26px;
  margin-right: 0;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--text-3);
  opacity: 0;
  overflow: hidden;
  transition: opacity 0.12s, background-color 0.12s;
}
.tab:not(.tab-all) .tab-btn {
  padding-right: 14px;
}
.tab.is-active:not(.tab-all) .tab-btn,
.tab:not(.tab-all):has(.tab-edit:focus-visible) .tab-btn {
  padding-right: 6px;
}
.tab.is-active .tab-edit,
.tab-edit:focus-visible {
  width: 26px;
  margin-right: 4px;
  opacity: 1;
}
.tab-edit:hover {
  background: var(--surface-3);
  color: var(--text);
}
.tab.is-active .tab-edit:hover {
  background: var(--accent-soft-2);
}
.tab.is-dragging {
  opacity: 0.45;
}
.tab.is-drop-before::before,
.tab.is-drop-after::after {
  content: '';
  position: absolute;
  top: 5px;
  bottom: 5px;
  width: 2px;
  border-radius: 2px;
  background: var(--accent);
}
.tab.is-drop-before::before {
  left: -3px;
}
.tab.is-drop-after::after {
  right: -3px;
}
.tab-new {
  flex: none;
  display: flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 12px;
  margin-left: 4px;
  border: 1px dashed var(--border-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--text-2);
  font-weight: 500;
  white-space: nowrap;
}
.tab-new:hover {
  border-style: solid;
  color: var(--accent-text);
  border-color: var(--accent);
  background: var(--accent-soft);
}

/* alerts under the tab bar */
.alerts {
  flex: none;
  display: flex;
  flex-direction: column;
}
.alert-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  background: var(--warning-soft);
  border-bottom: 1px solid var(--warning-border);
  color: var(--warning);
}
.alert-text {
  flex: 1;
  min-width: 0;
  color: var(--text);
}
.alert-bar > .icon {
  color: var(--warning);
}

/* --------------------------------------------------------------- workspace */
.workspace {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(340px, 40%) minmax(0, 1fr);
}
.workspace-empty {
  display: flex;
  overflow: auto;
}

.list-pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
}
.list-toolbar {
  flex: none;
  display: flex;
  align-items: center;
  gap: 8px;
  height: 46px;
  padding: 0 10px 0 8px;
  border-bottom: 1px solid var(--border);
}
.list-scroll {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
}
.progress-bar {
  position: sticky;
  top: 0;
  z-index: 2;
  height: 2px;
  overflow: hidden;
  background: var(--accent-soft);
}
.progress-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  width: 40%;
  background: var(--accent);
  animation: progress 1s ease-in-out infinite;
}
@keyframes progress {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(250%);
  }
}

.msg-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.msg {
  position: relative;
  border-bottom: 1px solid var(--border);
}
.msg-stripe {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
}
.msg-main {
  display: flex;
  flex-direction: column;
  gap: 1px;
  width: 100%;
  padding: 10px 14px 10px 40px;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: pointer;
}
.msg-main:focus-visible {
  box-shadow: inset 0 0 0 2px var(--accent);
}
.msg:hover {
  background: var(--hover);
}
.msg.is-cursor {
  background: var(--surface-2);
}
.msg.is-selected {
  background: var(--selected);
}
.msg.is-open {
  background: var(--accent-soft);
}
.msg.is-open .msg-stripe {
  width: 4px;
}
.msg-top {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}
.unread-dot {
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--unread);
}
.msg-from {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-2);
}
.msg-meta {
  flex: none;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-3);
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
}
.msg-subject {
  display: block;
  min-width: 0;
  padding-right: 28px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-2);
}
.msg-snippet {
  display: block;
  min-width: 0;
  padding-right: 28px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-3);
  font-size: 13px;
}
.msg.is-unread .msg-from,
.msg.is-unread .msg-subject {
  color: var(--text);
  font-weight: 650;
}
.msg.is-unread .msg-meta time {
  color: var(--accent-text);
  font-weight: 600;
}
.msg-star {
  position: absolute;
  right: 8px;
  bottom: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-3);
  opacity: 0.55;
  transition: opacity 0.12s, color 0.12s, background-color 0.12s;
}
.msg:hover .msg-star,
.msg-star:focus-visible {
  opacity: 1;
}
.msg-star:hover {
  background: var(--surface-3);
  color: var(--star);
}
.msg-star.is-on {
  color: var(--star);
  opacity: 1;
}

.list-foot {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 52px;
  padding: 12px;
}
.list-foot .muted {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* skeleton */
.skeleton-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 16px 14px 40px;
}
.sk {
  display: block;
  height: 10px;
  border-radius: 5px;
  background: linear-gradient(90deg, var(--skeleton) 0%, var(--skeleton-shine) 50%, var(--skeleton) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.3s ease-in-out infinite;
}
.sk-w40 {
  width: 40%;
}
.sk-w70 {
  width: 70%;
}
.sk-w80 {
  width: 80%;
}
.sk-w90 {
  width: 90%;
}
@keyframes shimmer {
  from {
    background-position: 100% 0;
  }
  to {
    background-position: -100% 0;
  }
}

/* empty states */
.empty-state,
.reader-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 48px 24px;
  text-align: center;
}
.reader-placeholder {
  height: 100%;
  color: var(--text-3);
}
.empty-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 6px;
  border-radius: 50%;
  background: var(--surface-3);
  color: var(--text-3);
}
.empty-icon.is-danger {
  background: var(--danger-soft);
  color: var(--danger);
}
.empty-title {
  font-size: 15px;
  font-weight: 650;
  color: var(--text);
}
.empty-text {
  max-width: 340px;
  color: var(--text-3);
}
.empty-text .kbd {
  margin: 0 1px;
}
.empty-state .btn {
  margin-top: 8px;
}
.empty-inline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  color: var(--text-2);
}

.empty-hero {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
}
.empty-hero-card {
  width: 100%;
  max-width: 560px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 40px 32px 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-md);
  text-align: center;
}
.empty-hero-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin-bottom: 4px;
  border-radius: 16px;
  background: var(--accent-soft);
  color: var(--accent-text);
}
.empty-hero-title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.empty-hero-text {
  max-width: 440px;
  color: var(--text-2);
}
.provider-quick {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  width: 100%;
  margin: 12px 0 4px;
}
.provider-quick-btn {
  flex: 0 1 164px;
  white-space: nowrap;
}
.provider-quick-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 48px;
  padding: 0 12px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-weight: 600;
  text-align: left;
  transition: border-color 0.12s, background-color 0.12s;
}
.provider-quick-btn:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.provider-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  border-radius: 10px;
  background: color-mix(in srgb, var(--tint) 14%, var(--surface));
  color: var(--tint);
  font-weight: 750;
  font-size: 15px;
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--tint) 22%, transparent);
}
:root[data-theme='dark'] .provider-mark {
  color: color-mix(in srgb, var(--tint) 55%, #fff);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .provider-mark {
    color: color-mix(in srgb, var(--tint) 55%, #fff);
  }
}

/* ------------------------------------------------------------- reading pane */
.reader-pane {
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: var(--surface);
}
.reader {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
.reader-toolbar {
  flex: none;
  display: flex;
  align-items: center;
  gap: 8px;
  height: 46px;
  padding: 0 10px;
  border-bottom: 1px solid var(--border);
}
.reader-back {
  display: none;
}
.reader-close {
  margin-left: auto;
}
.toolbar-group {
  display: flex;
  align-items: center;
  gap: 2px;
}
.tool-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 34px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-2);
  font-weight: 500;
  white-space: nowrap;
}
.tool-btn:hover,
.tool-btn.is-active {
  background: var(--hover);
  color: var(--text);
}
.tool-btn.is-starred,
.tool-btn.is-starred:hover {
  color: var(--star);
}
.tool-btn.is-starred .tool-label {
  color: var(--text-2);
}

.reader-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 20px 24px 32px;
}
.reader-header {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  column-gap: 12px;
  row-gap: 6px;
  max-width: 900px;
  margin-bottom: 16px;
}
.reader-subject {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  overflow-wrap: anywhere;
}
.reader-subject:focus {
  outline: none;
}
.reader-from-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.reader-from {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.reader-sender {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  column-gap: 6px;
  min-width: 0;
}
.reader-sender-name {
  font-weight: 650;
  overflow-wrap: anywhere;
}
.reader-sender-addr {
  color: var(--text-3);
  font-size: 13px;
  overflow-wrap: anywhere;
}
.reader-to-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  align-self: flex-start;
  max-width: 100%;
  padding: 1px 4px;
  margin-left: -4px;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--text-3);
  font-size: 13px;
  text-align: left;
}
.reader-to-toggle span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.reader-to-toggle:hover {
  color: var(--text);
  background: var(--hover);
}
.reader-date {
  flex: none;
  color: var(--text-3);
  font-size: 12.5px;
  white-space: nowrap;
  padding-top: 2px;
}
.reader-details {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
  font-size: 13px;
}
.detail-row {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 8px;
}
.detail-row dt {
  color: var(--text-3);
}
.detail-row dd {
  margin: 0;
  overflow-wrap: anywhere;
}
.account-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  align-self: flex-start;
  max-width: 100%;
  height: 24px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-2);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-2);
  white-space: nowrap;
  overflow: hidden;
}
.account-badge-email {
  color: var(--text-3);
  font-weight: 400;
  overflow: hidden;
  text-overflow: ellipsis;
}

.banner {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 900px;
  margin-bottom: 12px;
  padding: 8px 10px 8px 12px;
  border-radius: var(--radius);
  font-size: 13px;
}
.banner > span {
  flex: 1;
  min-width: 0;
}
.banner-info {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-2);
}
.banner-info > .icon {
  color: var(--text-3);
}
.banner-warning {
  background: var(--warning-soft);
  border: 1px solid var(--warning-border);
  color: var(--text);
}
.banner-warning > .icon {
  color: var(--warning);
}
.banner-danger {
  background: var(--danger-soft);
  border: 1px solid var(--danger-border);
  color: var(--text);
}
.banner-danger > .icon {
  color: var(--danger);
}

.reader-body {
  max-width: 900px;
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff; /* email HTML is authored for a light background */
}
.reader-frame {
  display: block;
  width: 100%;
  min-height: 120px;
  border: 0;
  background: #fff;
  color-scheme: light;
}
:root[data-theme='dark'] .reader-body {
  border: 1px solid var(--border);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .reader-body {
    border: 1px solid var(--border);
  }
}
.body-skeleton {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px;
  background: var(--surface);
}

.attachments {
  max-width: 900px;
  margin-top: 20px;
}
.attachments-title {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
}
.attachment-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.attachment {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 240px;
  max-width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  transition: border-color 0.12s, background-color 0.12s;
}
.attachment:hover {
  text-decoration: none;
  border-color: var(--border-strong);
  background: var(--hover);
}
.attachment-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  flex: none;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--accent-text);
}
.attachment-text {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.attachment-name {
  font-weight: 500;
  font-size: 13px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.attachment-size {
  color: var(--text-3);
  font-size: 12px;
}
.attachment-dl {
  color: var(--text-3);
}

/* ------------------------------------------------------------------ dialogs */
.dialog {
  width: min(100% - 32px, 560px);
  max-height: min(100% - 48px, 860px);
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.dialog[open] {
  display: flex;
  animation: dialog-in 0.16s ease-out;
}
.dialog-lg {
  width: min(100% - 32px, 760px);
}
/* Fixed height so switching settings sections doesn't make the dialog jump. */
.settings-dialog {
  height: min(100% - 48px, 680px);
}
.dialog::backdrop {
  background: var(--backdrop);
  animation: fade-in 0.16s ease-out;
}
@keyframes dialog-in {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.98);
  }
}
@keyframes fade-in {
  from {
    opacity: 0;
  }
}
.dialog-panel {
  display: flex;
  flex-direction: column;
  width: 100%;
  min-height: 0; /* stretched to the dialog's height; the body scrolls inside */
}
.dialog-panel:focus {
  outline: none;
}
.dialog-header {
  flex: none;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px 16px 14px 22px;
  border-bottom: 1px solid var(--border);
}
.dialog-titles {
  flex: 1;
  min-width: 0;
  padding-top: 4px;
}
.dialog-title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.dialog-subtitle {
  margin-top: 4px;
  color: var(--text-3);
  font-size: 13px;
}
.dialog-close {
  flex: none;
}
.dialog-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 20px 22px 22px;
}
.dialog-footer {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  background: var(--surface-2);
}
.footer-start {
  margin-right: auto;
}
.confirm-inline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  width: 100%;
  font-weight: 500;
}

.back-link {
  align-self: flex-start;
  font-size: 13px;
  margin-bottom: -4px;
}

/* add account */
.detect .input-row {
  gap: 8px;
}
.provider-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}
.provider-tile {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 60px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  text-align: left;
  transition: border-color 0.12s, background-color 0.12s, box-shadow 0.12s;
}
.provider-tile:hover {
  border-color: var(--border-strong);
  background: var(--hover);
}
.provider-tile.is-suggested {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.provider-tile-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.provider-tile-name {
  font-weight: 600;
  line-height: 1.3;
}
.provider-tile-sub {
  color: var(--text-3);
  font-size: 12.5px;
}
.oauth-panel {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
}
.oauth-text {
  color: var(--text-2);
}
.notice {
  display: flex;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text-2);
}
.notice p + p {
  margin-top: 6px;
}
.notice-compact {
  padding: 10px 12px;
  align-items: center;
}
.notice-icon {
  flex: none;
  color: var(--accent-text);
  padding-top: 1px;
}
.notice-title {
  font-size: 14px;
  font-weight: 650;
  color: var(--text);
  margin-bottom: 4px;
}
.hint-switch {
  margin-top: -8px;
}
.advanced {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 4px;
  border-top: 1px solid var(--border);
}
.advanced-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  align-self: flex-start;
  margin-top: 8px;
  padding: 2px 4px;
  margin-left: -4px;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--text-2);
  font-weight: 600;
  font-size: 13px;
}
.advanced-toggle:hover {
  color: var(--text);
}
.advanced-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 110px;
  gap: 12px;
}

/* tab editor */
.radio-row span {
  min-width: 0;
}
.rules {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.rules-match {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-2);
}
.rule-row {
  display: grid;
  grid-template-columns: 104px 140px minmax(0, 1fr) 32px;
  gap: 6px;
  align-items: center;
}
.rule-row .input {
  height: 34px;
}
.tab-hint {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 12px;
  border-radius: var(--radius);
  background: var(--accent-soft);
  color: var(--text);
  font-size: 13px;
}
.tab-hint .icon {
  margin-top: 2px;
  color: var(--accent-text);
}
.position-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* settings */
.settings-dialog .dialog-body {
  padding: 0;
  display: flex;
  flex-direction: column;
}
.settings-layout {
  display: flex;
  flex-direction: column;
  min-height: 0;
  flex: 1;
}
.settings-nav {
  flex: none;
  display: flex;
  gap: 4px;
  padding: 10px 16px 0;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
}
.settings-nav::-webkit-scrollbar {
  display: none;
}
.settings-nav-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 38px;
  padding: 0 12px;
  border: 0;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  background: transparent;
  color: var(--text-2);
  font-weight: 500;
  white-space: nowrap;
}
.settings-nav-btn:hover {
  color: var(--text);
  background: var(--hover);
}
.settings-nav-btn[aria-selected='true'] {
  color: var(--accent-text);
  font-weight: 600;
}
.settings-nav-btn[aria-selected='true']::after {
  content: '';
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: -1px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
}
.settings-panel {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 20px 22px 24px;
}
.settings-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}
.section-title {
  font-size: 15px;
  font-weight: 650;
}
.section-sub {
  margin-top: 2px;
  color: var(--text-3);
  font-size: 13px;
  max-width: 520px;
}
.account-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.account-item + .account-item {
  border-top: 1px solid var(--border);
}
.account-item.is-open {
  background: var(--surface-2);
}
.account-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 12px 12px 14px;
}
.account-main {
  flex: 1;
  min-width: 0;
}
.account-name {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.account-sub {
  color: var(--text-3);
  font-size: 12.5px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.account-status {
  flex: none;
  max-width: 220px;
  min-width: 0;
  display: flex;
}
.account-actions {
  flex: none;
  display: flex;
  align-items: center;
  gap: 4px;
}
.account-editor {
  padding: 4px 14px 16px 36px;
}
.reconnect-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.editor-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.confirm-box {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--danger-border);
  border-radius: var(--radius);
  background: var(--danger-soft);
}
.settings-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  min-width: 0;
}
.settings-foot .muted {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.shortcut-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 24px;
  margin: 0;
}
.shortcut-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.shortcut-row dt {
  display: flex;
  align-items: center;
  gap: 4px;
  order: 2;
}
.shortcut-row dd {
  margin: 0;
  color: var(--text-2);
}

/* ------------------------------------------------------------------- toasts */
.toasts {
  position: fixed;
  inset: auto 16px 16px auto;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  width: min(380px, calc(100vw - 32px));
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  overflow: visible;
  pointer-events: none;
}
.toasts:empty {
  display: none;
}
.toast {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  width: 100%;
  padding: 10px 8px 10px 12px;
  border-radius: var(--radius);
  background: #1d2230;
  color: #f3f4f7;
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  animation: toast-in 0.18s ease-out;
}
.toast-text {
  flex: 1;
  min-width: 0;
  padding-top: 1px;
  overflow-wrap: anywhere;
}
.toast-icon {
  display: flex;
  padding-top: 2px;
}
.toast-success .toast-icon {
  color: #6ee7a0;
}
.toast-error .toast-icon {
  color: #fca5a5;
}
.toast-info .toast-icon {
  color: #a5b4fc;
}
.toast-close {
  width: 24px;
  height: 24px;
  color: #b8bdc9;
}
.toast-close:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}
:root[data-theme='dark'] .toast {
  background: #2a3040;
  border: 1px solid #39405280;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .toast {
    background: #2a3040;
    border: 1px solid #39405280;
  }
}
/* With a dialog open, show toasts at the top centre (dialog footers hold the actions). */
.toasts.in-dialog {
  inset: 12px auto auto 50%;
  transform: translateX(-50%);
  align-items: center;
}
@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
}

/* ===================================================================== v2 */
/* ------------------------------------------------------------ app frame */
.app-body {
  flex: 1;
  min-height: 0;
  display: flex;
}
.app-main {
  flex: 1;
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

/* ---------------------------------------------------------------- sidebar */
.sidebar {
  flex: none;
  display: flex;
  flex-direction: column;
  width: var(--sidebar-w);
  min-height: 0;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
}
.sidebar-inner {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
.sidebar-top {
  flex: none;
  padding: 12px 12px 8px;
}
.compose-btn {
  width: 100%;
  height: 44px;
  justify-content: flex-start;
  gap: 10px;
  padding: 0 18px;
  border-radius: 14px;
  font-weight: 650;
  box-shadow: var(--shadow-md);
}
.sidebar-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 4px 8px 20px;
  scrollbar-width: thin;
}
.nav-list,
.folder-tree,
.folder-children,
.rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  height: 34px;
  padding: 0 12px 0 14px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--text-2);
  font-weight: 500;
  text-align: left;
}
.nav-item .icon {
  color: var(--text-3);
}
.nav-item:hover {
  background: var(--hover);
  color: var(--text);
}
.nav-item.is-active {
  background: var(--accent-soft);
  color: var(--accent-text);
  font-weight: 650;
}
.nav-item.is-active .icon {
  color: var(--accent-text);
}
.nav-label,
.folder-name,
.acct-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.nav-count {
  flex: none;
  margin-left: auto;
  color: var(--text-2);
  font-size: 12px;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
}
.is-active > .nav-count,
.is-active .nav-count {
  color: var(--accent-text);
}
.nav-count.is-alert {
  color: var(--danger);
}
.sidebar-heading {
  margin: 18px 12px 6px 14px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-3);
}
.acct-group + .acct-group {
  margin-top: 6px;
}
.acct-head {
  display: flex;
  align-items: center;
  gap: 2px;
  border-radius: 8px;
}
.acct-toggle {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  height: 32px;
  padding: 0 8px 0 8px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  font-size: 13px;
  font-weight: 650;
  text-align: left;
}
.acct-toggle > .icon {
  color: var(--text-3);
}
.acct-toggle:hover {
  background: var(--hover);
}
.acct-empty {
  padding: 2px 12px 8px 34px;
  color: var(--text-3);
  font-size: 12.5px;
}
.folder-row {
  position: relative;
  display: flex;
  align-items: center;
  height: 32px;
  padding-left: calc(var(--depth, 0) * 14px + 6px);
  border-radius: 8px;
}
.folder-row:hover {
  background: var(--hover);
}
.folder-row.is-active {
  background: var(--accent-soft);
}
.folder-toggle,
.folder-toggle-gap {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 24px;
  padding: 0;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--text-3);
}
.folder-toggle:hover {
  color: var(--text);
}
.folder-btn {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 9px;
  height: 32px;
  padding: 0 6px 0 4px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text-2);
  text-align: left;
}
.folder-btn .icon {
  color: var(--text-3);
}
.folder-row.is-active .folder-btn,
.folder-row.is-active .folder-btn .icon {
  color: var(--accent-text);
  font-weight: 650;
}
.folder-name.has-unread {
  color: var(--text);
  font-weight: 650;
}
.folder-row.is-active .folder-name {
  color: var(--accent-text);
}
.menu-anchor {
  display: inline-flex;
  flex: none;
}
.folder-more {
  width: 26px;
  height: 26px;
  margin-right: 2px;
  opacity: 0;
}
.folder-row:hover .folder-more,
.acct-head:hover .folder-more,
.folder-more:focus-visible,
.folder-more.is-active,
.folder-row.is-active .folder-more {
  opacity: 1;
}
.folder-new,
.sidebar-add {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  height: 30px;
  padding: 0 10px 0 30px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--text-3);
  font-size: 13px;
  text-align: left;
}
.folder-new:hover,
.sidebar-add:hover {
  background: var(--hover);
  color: var(--accent-text);
}
.sidebar-add {
  margin-top: 14px;
  padding-left: 14px;
}

/* icon rail (collapsed desktop sidebar) */
.sidebar.is-rail {
  width: var(--rail-w);
  align-items: center;
  gap: 10px;
  padding: 12px 0;
}
.rail-compose {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 14px;
  background: var(--accent);
  color: var(--accent-fg);
  box-shadow: var(--shadow-md);
}
.rail-compose:hover {
  background: var(--accent-hover);
}
.rail-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.rail-item {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 36px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--text-2);
}
.rail-item:hover {
  background: var(--hover);
  color: var(--text);
}
.rail-item.is-active {
  background: var(--accent-soft);
  color: var(--accent-text);
}
.rail-badge {
  position: absolute;
  top: 0;
  right: 0;
  min-width: 17px;
  height: 17px;
  padding: 0 4px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-fg);
  font-size: 10px;
  font-weight: 700;
  line-height: 17px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.rail-badge.is-alert {
  background: var(--danger);
  color: #fff;
}

/* drawer (tablet / phone) */
.drawer {
  position: fixed;
  inset: 0 auto 0 0;
  width: min(320px, 86vw);
  height: 100%;
  max-width: none;
  max-height: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  border-right: 1px solid var(--border);
  background: var(--sidebar-bg);
  color: var(--text);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.drawer[open] {
  display: flex;
  animation: drawer-in 0.18s ease-out;
}
.drawer::backdrop {
  background: var(--backdrop);
  animation: fade-in 0.16s ease-out;
}
@keyframes drawer-in {
  from {
    transform: translateX(-100%);
  }
}
.sidebar.is-drawer {
  flex: 1;
  width: 100%;
  border-right: 0;
  background: transparent;
  padding-bottom: env(safe-area-inset-bottom);
}
.drawer-head {
  flex: none;
  display: flex;
  align-items: center;
  gap: 10px;
  height: var(--topbar-h);
  padding: 0 8px 0 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.drawer-close {
  margin-left: auto;
}

/* --------------------------------------------------------------- menus */
.menu.menu-floating {
  position: fixed;
  right: auto;
  z-index: 70;
  min-width: 220px;
  max-width: min(320px, calc(100vw - 16px));
  max-height: calc(100vh - 16px);
  overflow-y: auto;
}
.menu-item:disabled {
  opacity: 0.5;
  cursor: default;
}
.menu-item:disabled:hover {
  background: transparent;
}
.menu-item.is-danger,
.menu-item.is-danger .icon {
  color: var(--danger);
}
.menu-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.menu-icon-gap {
  width: 16px;
  flex: none;
}
.menu-hint {
  margin-left: 8px;
}

/* ----------------------------------------------------------- view header */
.viewbar {
  flex: none;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  height: 48px;
  padding: 0 8px 0 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.viewbar-icon {
  display: flex;
  color: var(--text-3);
}
.viewbar-titles {
  min-width: 0;
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.viewbar-title {
  flex: none;
  max-width: 50vw;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.viewbar-sub {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  overflow: hidden;
  color: var(--text-3);
  font-size: 12.5px;
  white-space: nowrap;
}
.viewbar-account {
  color: var(--text-2);
  font-weight: 600;
}
.viewbar-email,
.viewbar-path {
  overflow: hidden;
  text-overflow: ellipsis;
}
.viewbar-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: none;
  color: var(--text-3);
  font-size: 12.5px;
}
.viewbar .btn-sm span {
  white-space: nowrap;
}
.icon-btn.is-busy {
  color: var(--accent-text);
}

/* ------------------------------------------------------ list: selection */
.msg-check {
  position: absolute;
  left: 10px;
  top: 10px;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 6px;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
}
.msg-check input {
  margin: 0;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.12s;
}
.msg:hover .msg-check input,
.msg:focus-within .msg-check input,
.msg.is-selected .msg-check input,
.has-selection .msg-check input {
  opacity: 1;
}
.msg-check input:focus-visible {
  opacity: 1;
  box-shadow: var(--focus);
  border-radius: 3px;
}
.select-all {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  cursor: pointer;
}
.select-all:hover {
  background: var(--hover);
}
.select-all input {
  cursor: pointer;
}
.msg-draft {
  margin-right: 6px;
  color: var(--danger);
  font-weight: 650;
}
.msg-folder {
  display: inline-block;
  margin-right: 6px;
  padding: 0 6px;
  border-radius: 4px;
  background: var(--surface-3);
  color: var(--text-2);
  font-size: 11.5px;
  font-weight: 500;
  line-height: 18px;
  vertical-align: 1px;
}
.msg-meta .icon-reply {
  color: var(--text-3);
}

/* bulk bar */
.bulkbar {
  gap: 4px;
  padding: 0 6px 0 8px;
  background: var(--selected);
}
.bulk-count {
  flex: none;
  margin: 0 6px 0 2px;
  color: var(--accent-text);
  font-size: 13px;
  font-weight: 650;
  white-space: nowrap;
}
.bulk-actions {
  display: flex;
  align-items: center;
  gap: 1px;
  min-width: 0;
  margin-left: auto;
  overflow-x: auto;
  scrollbar-width: none;
}
.bulk-actions::-webkit-scrollbar {
  display: none;
}
.bulkbar .tool-btn:hover {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}
.bulk-clear {
  flex: none;
}

/* load older + floating compose */
.load-older {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 8px 16px 4px;
  text-align: center;
}
.load-older .muted {
  max-width: 340px;
}
.load-older-error {
  color: var(--danger);
}
.list-foot {
  flex-direction: column;
  gap: 8px;
}
.list-pane,
.workspace-single {
  position: relative;
}
.fab {
  display: none;
  position: absolute;
  right: 16px;
  bottom: calc(16px + env(safe-area-inset-bottom));
  z-index: 5;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border: 0;
  border-radius: 18px;
  background: var(--accent);
  color: var(--accent-fg);
  box-shadow: var(--shadow-lg);
}
.fab:hover {
  background: var(--accent-hover);
}

/* ------------------------------------------------------- reader + thread */
.toolbar-sep {
  flex: none;
  width: 1px;
  height: 20px;
  background: var(--border);
}
.opened {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 900px;
}
.opened .banner {
  margin-bottom: 0;
}
.reader-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.folder-badge .icon {
  color: var(--text-3);
}
.avatar-me {
  background: var(--surface-3);
  color: var(--text-2);
}
.reply-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 6px;
}
.thread-count {
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--surface-3);
  color: var(--text-2);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}
.thread {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 900px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.thread-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
}
.thread-item.is-open {
  padding: 16px 16px 18px;
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}
.thread-summary {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-width: 0;
  padding: 10px 12px;
  border: 0;
  border-radius: inherit;
  background: transparent;
  color: var(--text);
  text-align: left;
}
.thread-summary:hover {
  background: var(--hover);
}
.thread-from {
  flex: none;
  max-width: 40%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 600;
}
.thread-item.is-unread .thread-from {
  font-weight: 750;
}
.thread-snippet {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-3);
  font-size: 13px;
}
.thread-meta {
  flex: none;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-3);
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
}
.thread-summary.is-header {
  align-items: flex-start;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.thread-head-text {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.thread-head-text .thread-from {
  max-width: 100%;
}
.thread-to {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-3);
  font-size: 12.5px;
}
.thread-date {
  flex: none;
  color: var(--text-3);
  font-size: 12.5px;
}
.thread-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 2px 14px 14px 52px;
}
.thread-body .banner {
  margin-bottom: 0;
}
.thread-body .attachments {
  margin-top: 0;
}
.thread-loading {
  display: flex;
  justify-content: center;
  padding: 16px;
}
.thread-actions {
  display: flex;
  gap: 8px;
}
.thread-more {
  display: flex;
  align-items: center;
  gap: 10px;
}
.thread-more::before,
.thread-more::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}
.thread-more-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 30px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text-2);
  font-size: 13px;
  font-weight: 500;
}
.thread-more-btn:hover {
  background: var(--hover);
}
.thread-more-count {
  font-weight: 700;
  color: var(--text);
}
.print-frame {
  position: fixed;
  right: 0;
  bottom: 0;
  width: 0;
  height: 0;
  border: 0;
}

/* ------------------------------------------------------------------ outbox */
.workspace-single {
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  background: var(--surface);
}
.outbox-pane {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 16px 20px 32px;
}
.outbox-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.outbox-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 12px 14px 16px;
}
.outbox-item + .outbox-item {
  border-top: 1px solid var(--border);
}
.outbox-item.is-failed {
  background: color-mix(in srgb, var(--danger-soft) 70%, var(--surface));
}
.outbox-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.outbox-top {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.outbox-to {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 600;
}
.outbox-subject {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-2);
}
.outbox-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  color: var(--text-3);
  font-size: 12.5px;
}
.outbox-from {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.outbox-error {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  margin-top: 6px;
  color: var(--danger);
  font-size: 13px;
}
.outbox-error .icon {
  margin-top: 2px;
}
.outbox-actions {
  flex: none;
  display: flex;
  align-items: center;
  gap: 6px;
}
.outbox-note {
  margin-top: 12px;
  text-align: center;
}

/* --------------------------------------------------------- toast action */
.toast-action {
  flex: none;
  height: 26px;
  margin-top: -2px;
  padding: 0 10px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: #a5b4fc;
  font-weight: 700;
}
.toast-action:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #c7d0ff;
}

/* --------------------------------------------------------- v2 dialogs */
.dialog-sm {
  width: min(100% - 32px, 440px);
}
.dialog-title-icon {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-top: 1px;
  border-radius: 50%;
}
.dialog-title-icon.is-danger {
  background: var(--danger-soft);
  color: var(--danger);
}
.confirm-text {
  color: var(--text-2);
  overflow-wrap: anywhere;
}
.move-account {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  color: var(--text-2);
  font-weight: 500;
  overflow-wrap: anywhere;
}
.move-list {
  margin: -6px 0 0;
  padding: 4px;
  list-style: none;
  max-height: min(320px, 46vh);
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.move-option {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 36px;
  padding: 0 10px;
  border-radius: var(--radius-sm);
  color: var(--text-2);
  cursor: pointer;
}
.move-option .icon {
  color: var(--text-3);
}
.move-option.is-active,
.move-option.is-active .icon {
  background: var(--accent-soft);
  color: var(--accent-text);
}
.move-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.move-empty {
  padding: 14px 10px;
  color: var(--text-3);
  text-align: center;
}
.segmented-wrap {
  flex-wrap: wrap;
}
.segmented-wrap .segment {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ------------------------------------------------------- v2 settings */
.section-divider {
  height: 1px;
  margin: 6px 0;
  background: var(--border);
}
.inline-field {
  flex-direction: row;
  align-items: center;
  gap: 12px;
}
.switch-row {
  display: flex;
  align-items: center;
  gap: 12px;
  align-self: flex-start;
  cursor: pointer;
  font-weight: 500;
}
input[type='checkbox'].switch {
  position: relative;
  width: 38px;
  height: 22px;
  margin: 0;
  border-radius: 999px;
  background: var(--border-strong);
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  transition: background-color 0.15s;
}
input[type='checkbox'].switch::before {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
  transition: transform 0.15s;
}
input[type='checkbox'].switch:checked {
  background: var(--accent);
}
input[type='checkbox'].switch:checked::before {
  transform: translateX(16px);
}
input[type='checkbox'].switch:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.send-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-2);
}
.send-status.is-ok .icon {
  color: var(--success);
}
.send-status.is-off .icon,
.send-off {
  color: var(--warning);
}
.send-off {
  font-weight: 600;
}
.smtp-fieldset {
  gap: 6px;
}
.smtp-fieldset > legend {
  margin-bottom: 4px;
}
.field-span {
  grid-column: 1 / -1;
}
.smtp-heading {
  margin-top: 4px;
}

/* -------------------------------------------------------------- responsive */
@media (max-width: 1100px) {
  .brand {
    width: auto;
  }
  .tool-label {
    display: none;
  }
  .tool-btn {
    width: 34px;
    padding: 0;
    justify-content: center;
  }
}

@media (max-width: 767px) {
  :root {
    --topbar-h: 54px;
  }
  .topbar {
    gap: 10px;
    padding: 0 12px;
  }
  .brand-name {
    display: none;
  }
  .search-kbd {
    display: none;
  }
  .topbar-actions {
    gap: 2px;
  }
  .tabbar-scroll {
    padding: 0 8px;
    height: 46px;
  }

  .workspace {
    display: flex;
    flex-direction: column;
  }
  .list-pane {
    flex: 1;
    border-right: 0;
  }
  .reader-pane {
    display: none;
  }
  .workspace.reader-open .list-pane {
    display: none;
  }
  .workspace.reader-open .reader-pane {
    display: flex;
    flex: 1;
  }
  .reader-back {
    display: inline-flex;
  }
  .reader-close {
    display: none;
  }
  .toolbar-group {
    margin-left: auto;
  }
  .reader-scroll {
    padding: 16px 16px 28px;
  }
  .reader-subject {
    font-size: 18px;
  }
  .reader-from-row {
    flex-wrap: wrap;
  }
  .reader-date {
    width: 100%;
    order: 3;
    padding-left: 50px;
    margin-top: -8px;
  }
  .attachment {
    width: 100%;
  }
  .attachment-list {
    flex-direction: column;
  }
  .attachment-list li {
    width: 100%;
  }

  .alert-bar {
    padding: 8px 12px;
    flex-wrap: wrap;
  }

  /* dialogs become full-screen sheets */
  .dialog,
  .dialog-lg {
    width: 100%;
    max-width: 100%;
    height: 100%;
    max-height: 100%;
    margin: 0;
    border: 0;
    border-radius: 0;
  }
  .dialog[open] {
    animation: sheet-in 0.2s ease-out;
  }
  .dialog-header {
    padding: 12px 10px 12px 16px;
  }
  .dialog-body {
    padding: 16px;
  }
  .dialog-footer {
    padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
    flex-wrap: wrap;
  }
  .settings-panel {
    padding: 16px;
  }
  .settings-nav {
    padding: 8px 8px 0;
  }
  .rule-row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr) 32px;
  }
  .rule-row .rule-value {
    grid-column: 1 / 3;
    grid-row: 2;
  }
  .rule-row .rule-remove {
    grid-row: 1;
    grid-column: 3;
  }
  .rule-row {
    padding-bottom: 8px;
    border-bottom: 1px dashed var(--border);
  }
  .account-row {
    flex-wrap: wrap;
  }
  .account-status {
    order: 4;
    width: 100%;
    max-width: none;
    padding-left: 22px;
  }
  .account-editor {
    padding: 4px 14px 16px;
  }
  .shortcut-list {
    grid-template-columns: minmax(0, 1fr);
  }
  .section-head {
    flex-direction: column;
    gap: 10px;
  }
  .toasts {
    inset: auto 12px calc(12px + env(safe-area-inset-bottom)) 12px;
    width: auto;
  }
  .toasts.in-dialog {
    inset: auto 12px calc(72px + env(safe-area-inset-bottom)) 12px;
    transform: none;
    align-items: stretch;
  }
  @keyframes sheet-in {
    from {
      opacity: 0;
      transform: translateY(24px);
    }
  }
}

@media (max-width: 480px) {
  .hide-xs {
    display: none;
  }
  .provider-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .provider-tile {
    min-height: 54px;
  }
  .advanced-grid {
    grid-template-columns: minmax(0, 1fr) 96px;
  }
  .field-indent {
    margin-left: 0;
  }
  .oauth-panel {
    align-items: flex-start;
  }
  .auth-card {
    padding: 22px 18px;
  }
  .empty-hero-card {
    padding: 28px 18px 22px;
  }
  .provider-quick-btn {
    flex: 1 1 130px;
  }
}

/* ---------------------------------------------------------- v2 responsive */
@media (max-width: 1023px) {
  .brand {
    width: auto;
  }
  .fab {
    display: inline-flex;
  }
  /* Room so the floating Compose button never covers the last row. */
  .list-foot {
    padding-bottom: 84px;
  }
}

@media (max-width: 767px) {
  .viewbar {
    height: 46px;
    gap: 8px;
    padding: 0 4px 0 12px;
  }
  .viewbar-titles {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }
  .viewbar-title {
    max-width: 100%;
    font-size: 15px;
  }
  .viewbar-sub {
    max-width: 100%;
    font-size: 11.5px;
  }
  .viewbar-email,
  .viewbar-path,
  .viewbar .btn-sm span {
    display: none;
  }
  .tool-wide {
    display: none;
  }
  .thread-item.is-open {
    padding: 14px 12px 16px;
  }
  .thread-body {
    padding: 2px 12px 12px;
  }
  .thread-from {
    max-width: 50%;
  }
  .reply-bar .btn {
    flex: 1 1 0;
    padding: 0 8px;
  }
  .outbox-pane {
    padding: 12px 12px 96px;
  }
  .outbox-item {
    flex-wrap: wrap;
  }
  .outbox-actions {
    width: 100%;
    justify-content: flex-end;
  }
  .toasts.above-fab {
    inset: auto 12px calc(84px + env(safe-area-inset-bottom)) 12px;
  }
  /* Small confirmations stay cards instead of full-screen sheets. */
  .dialog.dialog-sm {
    width: calc(100% - 24px);
    height: auto;
    max-height: calc(100% - 24px);
    margin: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
  }
  .inline-field {
    flex-wrap: wrap;
  }
}

/* Touch screens have no hover: checkboxes and ⋯ buttons are always visible. */
@media (pointer: coarse) {
  .msg-check input,
  .folder-more {
    opacity: 1;
  }
}

.saved-note {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--success);
  font-size: 13px;
  font-weight: 600;
}

/* The list pane's own width decides how much its toolbars can show (it is ~340 px next to the
   sidebar on 1024 px screens, and full width on phones). */
.list-pane {
  container-type: inline-size;
}
@container (max-width: 420px) {
  .list-toolbar .btn-sm .hide-xs {
    display: none;
  }
  .bulk-count-word {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }
  .bulk-btn {
    width: 30px;
  }
}

/* Narrow reading pane (next to the sidebar on ~1024 px screens, or on small tablets): the date
   gets its own line so the sender's address has room. Media ranges rather than a container
   query: containment would also capture the reader's fixed-position ⋯ menu. */
@media (min-width: 1024px) and (max-width: 1180px), (min-width: 768px) and (max-width: 940px) {
  .reader-from-row {
    flex-wrap: wrap;
  }
  .reader-date {
    width: 100%;
    order: 3;
    padding-left: 50px;
    margin-top: -8px;
  }
  .reader-sender-addr {
    overflow-wrap: normal;
    word-break: break-all;
  }
}
.drawer-head .brand-name {
  display: inline;
}
@media (max-width: 767px) {
  /* Back on the left, every action together on the right. */
  .reader-toolbar .toolbar-group {
    margin-left: 0;
  }
  .reader-back {
    margin-right: auto;
  }
}
@media (pointer: coarse) {
  .menu-hint {
    display: none;
  }
}
@media (max-width: 767px) {
  .outbox-top {
    flex-wrap: wrap;
    row-gap: 4px;
  }
  .outbox-to {
    flex-basis: 100%;
  }
}