:root {
  --bg: #eef2f6;
  --surface: #ffffff;
  --text: #172033;
  --muted: #64748b;
  --line: #d8e0ea;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --accent: #0e9f6e;
  --danger: #b42318;
  --warn: #b7791f;
  --shadow: 0 14px 34px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background: linear-gradient(180deg, #f8fafc 0%, var(--bg) 100%);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
}

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

button {
  min-height: 36px;
  border: 0;
  border-radius: 7px;
  padding: 0 14px;
  color: #fff;
  background: var(--primary);
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  background: var(--primary-dark);
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 10px 11px;
  outline: none;
}

textarea {
  resize: vertical;
  min-height: 260px;
  font-family: Consolas, "Courier New", monospace;
  line-height: 1.45;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

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

.hidden {
  display: none !important;
}

.auth {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.auth-panel,
.panel,
header,
.item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.auth-panel {
  width: min(620px, 100%);
  padding: 28px;
  display: grid;
  gap: 18px;
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
}

.brand > span {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  color: #fff;
  background: linear-gradient(135deg, #1d4ed8, #0891b2 58%, #0e9f6e);
  font-weight: 800;
}

.brand small,
p,
.message,
.hint {
  color: var(--muted);
  font-size: 13px;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.tabs button,
nav button,
#logout {
  background: #edf3f8;
  color: var(--text);
}

.tabs button.active,
nav button.active {
  background: var(--primary);
  color: #fff;
}

.auth-form {
  display: none;
  gap: 13px;
}

.auth-form.active {
  display: grid;
}

.shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
}

aside {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  background: #101827;
  color: #fff;
}

aside .brand small {
  color: #aab4c5;
}

nav {
  display: grid;
  gap: 7px;
}

#logout {
  margin-top: auto;
}

main {
  min-width: 0;
  padding: 28px;
}

header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  padding: 18px 20px;
  margin-bottom: 20px;
}

#status {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--muted);
}

#status.ok,
.message.ok {
  color: var(--accent);
}

#status.warn {
  color: var(--warn);
}

#status.error,
.message.error {
  color: var(--danger);
}

.view {
  display: none;
}

.view.active {
  display: grid;
  gap: 20px;
}

.grid {
  display: grid;
  gap: 20px;
}

.grid.two {
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.panel {
  padding: 20px;
  display: grid;
  gap: 14px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.panel-head button {
  min-height: 32px;
  padding: 0 12px;
}

.compact-panel {
  gap: 12px;
}

.provision-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.85fr) minmax(360px, 1.15fr);
  gap: 20px;
  align-items: start;
}

.provision-left {
  display: grid;
  gap: 16px;
}

.domain-list {
  display: grid;
  gap: 8px;
  max-height: 420px;
  overflow: auto;
}

.domain-chip {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  background: #f8fafc;
}

.domain-chip span {
  color: var(--muted);
  font-size: 12px;
}

.list {
  display: grid;
  gap: 10px;
}

.kv,
.directory-list,
.mailbox-children {
  display: grid;
  gap: 10px;
}

.kv span,
.paths span {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 12px;
  color: var(--muted);
  font-size: 13px;
}

.kv strong,
.paths strong {
  color: var(--text);
}

.item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 14px;
  box-shadow: none;
}

.domain-block {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  overflow: hidden;
}

.domain-head,
.mailbox-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 14px;
}

.domain-head {
  background: #f8fafc;
  border-bottom: 1px solid var(--line);
}

.domain-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 30px;
  padding: 0;
  color: var(--text);
  background: transparent;
  box-shadow: none;
}

.domain-toggle:hover {
  color: var(--primary-dark);
  background: transparent;
}

.domain-toggle span {
  width: 18px;
  color: var(--muted);
}

.mailbox-row {
  margin: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.row-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

button.edit {
  background: var(--primary);
}

button.delete,
button.danger-soft {
  background: var(--danger);
}

button.delete:hover,
button.danger-soft:hover {
  background: #8f1d15;
}

.empty {
  padding: 14px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
}

pre {
  max-height: 420px;
  overflow: auto;
  margin: 0;
  padding: 14px;
  border-radius: 8px;
  background: #0f172a;
  color: #dbeafe;
  font: 13px/1.5 Consolas, "Courier New", monospace;
  white-space: pre-wrap;
}

dialog {
  width: min(520px, calc(100vw - 32px));
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0;
  box-shadow: var(--shadow);
}

#messageDialog {
  width: min(760px, calc(100vw - 32px));
}

dialog::backdrop {
  background: rgba(15, 23, 42, 0.35);
}

.dialog-form {
  display: grid;
  gap: 14px;
  padding: 20px;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

#cancelMailboxPassword {
  color: var(--text);
  background: #edf3f8;
}

.message-link {
  min-height: 0;
  padding: 0;
  color: var(--primary);
  background: transparent;
  font-weight: 800;
  text-align: left;
}

.message-link:hover {
  color: var(--primary-dark);
  background: transparent;
  text-decoration: underline;
}

.message-dialog iframe {
  width: 100%;
  max-height: 60vh;
  min-height: 360px;
  background: #f8fafc;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
}

@media (max-width: 980px) {
  .shell,
  .grid.two,
  .grid.three,
  .provision-layout,
  .tabs,
  .paths span,
  .kv span,
  .domain-head,
  .mailbox-row {
    grid-template-columns: 1fr;
  }

  header {
    flex-direction: column;
  }
}