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

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: var(--text-md) / 1.45 var(--font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: var(--accent-text);
}

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

button {
  cursor: pointer;
}

button:disabled {
  cursor: default;
}

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

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

[hidden] {
  display: none !important;
}

.icon {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon.is-filled {
  fill: currentColor;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -100px;
  z-index: 100;
  padding: 8px 12px;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
}

.skip-link:focus {
  top: 12px;
}

/* ---- buttons ---- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--bg-raised);
  color: var(--fg);
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
}

.button:hover:not(:disabled) {
  background: var(--bg-hover);
}

.button:disabled {
  opacity: 0.55;
}

.button.is-small {
  min-height: 32px;
  padding: 0 12px;
  font-size: var(--text-sm);
}

.button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
}

.button.primary:hover:not(:disabled) {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.button.danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #ffffff;
  font-weight: 600;
}

.button.danger:hover:not(:disabled) {
  background: var(--danger-strong);
  border-color: var(--danger-strong);
}

@media (prefers-color-scheme: dark) {
  .button.danger {
    color: #1a0b09;
  }
}

.button.is-danger {
  color: var(--danger);
}

.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  color: var(--fg-muted);
  text-decoration: none;
}

.icon-button:hover:not(:disabled) {
  background: var(--bg-hover);
  color: var(--fg);
}

.icon-button:disabled {
  opacity: 0.45;
}

.icon-button[aria-pressed="true"] {
  color: var(--fg);
}

.link-button {
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent-text);
  font-weight: 500;
}

.link-button:hover {
  text-decoration: underline;
}

/* ---- small parts ---- */

.count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 20px;
  padding: 0 7px;
  border-radius: 10px;
  background: var(--accent);
  color: var(--on-accent);
  font-size: var(--text-xs);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.count.is-quiet {
  background: transparent;
  color: var(--fg-muted);
  font-weight: 600;
}

.banner {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 12px;
  border-radius: var(--radius);
  font-size: var(--text-sm);
}

.banner.is-warning {
  background: var(--warning-bg);
  color: var(--warning-fg);
}

.banner.is-quiet {
  background: var(--bg-app);
  color: var(--fg-muted);
}

.banner .icon {
  margin-top: 1px;
}

kbd {
  display: inline-block;
  min-width: 22px;
  padding: 1px 6px;
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: var(--bg-app);
  font: 600 var(--text-xs) / 1.5 var(--font-mono);
  text-align: center;
}

.mailbox-avatar,
.avatar,
.account-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border-radius: 50%;
  font-weight: 700;
  line-height: 1;
}

.mailbox-avatar {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  font-size: var(--text-sm);
}

.avatar {
  width: 36px;
  height: 36px;
  font-size: var(--text-sm);
}

.hue-0 {
  background: var(--hue-0-bg);
  color: var(--hue-0-fg);
}
.hue-1 {
  background: var(--hue-1-bg);
  color: var(--hue-1-fg);
}
.hue-2 {
  background: var(--hue-2-bg);
  color: var(--hue-2-fg);
}
.hue-3 {
  background: var(--hue-3-bg);
  color: var(--hue-3-fg);
}
.hue-4 {
  background: var(--hue-4-bg);
  color: var(--hue-4-fg);
}
.hue-5 {
  background: var(--hue-5-bg);
  color: var(--hue-5-fg);
}

.file-kind {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, currentColor 12%, transparent);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.03em;
}

.kind-pdf {
  color: var(--kind-pdf);
}
.kind-img {
  color: var(--kind-img);
}
.kind-doc {
  color: var(--kind-doc);
}
.kind-xls {
  color: var(--kind-xls);
}
.kind-ppt {
  color: var(--kind-ppt);
}
.kind-zip {
  color: var(--kind-zip);
}
.kind-ics {
  color: var(--kind-ics);
}
.kind-txt {
  color: var(--kind-txt);
}
.kind-file {
  color: var(--kind-file);
}

.skeleton-line {
  display: block;
  height: 10px;
  width: 70%;
  margin: 8px 0;
  border-radius: 5px;
  background: var(--bg-skeleton);
}

.skeleton-line.is-short {
  width: 38%;
}

.skeleton-line.is-long {
  width: 92%;
}

.skeleton-line.is-title {
  height: 18px;
  width: 55%;
  margin-bottom: 20px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* (display names) A name, a sender's own claim among them, is isolated from the text around it: a right-to-left
   name never reorders the address or punctuation beside it. */
.message-from-name,
.message-summary-from,
.row-from,
.sidebar-name,
.switcher-name,
.mailbox-item-name,
.compose-from {
  unicode-bidi: isolate;
}