:root {
  --bg: #0a0e17;
  --surface: #111827;
  --surface-2: #1a2332;
  --surface-3: #243044;
  --border: #2d3a4f;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-soft: rgba(59, 130, 246, 0.12);
  --success: #22c55e;
  --warn: #f59e0b;
  --danger: #ef4444;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --sans: "IBM Plex Sans", system-ui, sans-serif;
  --radius: 12px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  --sidebar: 240px;
}

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.shell {
  display: grid;
  grid-template-columns: var(--sidebar) 1fr;
  min-height: 100vh;
}

.sidebar-nav {
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 20px 14px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 10px 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

.sidebar-brand strong { display: block; font-size: 0.95rem; }
.sidebar-brand span { color: var(--muted); font-size: 0.75rem; }

.logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #1d4ed8);
  display: grid;
  place-items: center;
  font-weight: 600;
  font-size: 12px;
  color: #fff;
}

.nav-list { display: flex; flex-direction: column; gap: 6px; flex: 1; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.88rem;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.nav-item:hover { background: var(--surface-2); color: var(--text); }
.nav-item.active {
  background: var(--accent-soft);
  border-color: rgba(59, 130, 246, 0.25);
  color: var(--text);
}

.nav-icon { opacity: 0.8; width: 18px; text-align: center; }

.sidebar-foot { margin-top: auto; padding-top: 16px; }

.workspace {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 24px 28px 40px;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.topbar h1 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.subtitle { margin: 4px 0 0; color: var(--muted); font-size: 0.88rem; }

.topbar-actions { display: flex; gap: 8px; }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
}

.zone-toolbar { margin-bottom: 18px; }

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.panel-head h2 { margin: 0; font-size: 1.05rem; font-weight: 600; }

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.field span { font-size: 0.78rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.field small { font-size: 0.75rem; color: var(--muted); }
.field-inline { margin-bottom: 0; }

.zone-select-row { display: flex; gap: 10px; flex-wrap: wrap; }
.zone-select-row select { flex: 1; min-width: 200px; }

.zone-meta {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.82rem;
  color: var(--muted);
}

.zone-meta .badge {
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
}

.badge-ok { background: rgba(34, 197, 94, 0.15); color: var(--success); }
.badge-warn { background: rgba(245, 158, 11, 0.15); color: var(--warn); }
.badge-danger { background: rgba(239, 68, 68, 0.15); color: var(--danger); }
.badge-info { background: var(--accent-soft); color: #93c5fd; }

.content { display: flex; flex-direction: column; gap: 18px; }

.view { display: none; }
.view.active { display: block; }

.mail-layout {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.mail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.panel-head .panel-actions {
  margin-top: 0;
  flex-shrink: 0;
}

.email-workspace {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.email-empty {
  text-align: center;
  padding: 48px 24px;
}

.email-empty h2 {
  margin: 0 0 8px;
}

.email-empty .hint {
  margin-bottom: 18px;
}

.field-search {
  margin-bottom: 12px;
}

.dns-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.dns-line .copy-dns-btn {
  margin-left: auto;
}

.mail-active-zone {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 12px;
}

.data-table tr.row-active td {
  background: rgba(59, 130, 246, 0.08);
}

.modal-wide {
  max-width: 640px;
  width: min(96vw, 640px);
}

.health-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-height: 60vh;
  overflow-y: auto;
}

.health-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 16px;
  padding: 12px;
  background: var(--surface-2);
  border-radius: 8px;
}

.health-dns h4,
.health-mailboxes h4 {
  margin: 0 0 8px;
  font-size: 0.92rem;
}

.health-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.rdns-panel {
  max-width: 520px;
}

.rdns-form {
  max-width: 100%;
}

.warn-banner {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 12px;
  color: var(--warn);
}

.warn-banner a { color: var(--accent); }

.hint.small { font-size: 0.82rem; margin-top: 8px; }

.legacy-mail summary {
  cursor: pointer;
  list-style: none;
}

.legacy-mail summary::-webkit-details-marker { display: none; }

.mono-pass {
  font-family: var(--mono);
  font-size: 0.95rem;
  background: var(--surface-2);
  padding: 10px 12px;
  border-radius: 8px;
  word-break: break-all;
  margin: 8px 0;
}

.badge-warn { background: rgba(245, 158, 11, 0.15); color: var(--warn); }

.actions { white-space: nowrap; }

.btn-sm { padding: 6px 10px; font-size: 0.82rem; }

input, select, textarea {
  font: inherit;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

textarea {
  resize: vertical;
  font-family: var(--mono);
  font-size: 0.85rem;
}

.btn {
  font: inherit;
  font-weight: 500;
  border: none;
  border-radius: 8px;
  padding: 9px 14px;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
}

.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); }
.btn-secondary { background: var(--surface-2); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover:not(:disabled) { border-color: var(--muted); }
.btn-ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.btn-ghost:hover:not(:disabled) { color: var(--text); background: var(--surface-2); }
.btn-danger { background: transparent; color: var(--danger); border: 1px solid rgba(239, 68, 68, 0.35); font-size: 0.85rem; }
.btn-danger:hover:not(:disabled) { background: rgba(239, 68, 68, 0.1); }
.btn-block { width: 100%; }
.btn-sm { padding: 5px 10px; font-size: 0.78rem; }
.btn-icon { background: none; border: none; color: var(--muted); font-size: 1.4rem; cursor: pointer; }

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-2);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}

.data-table th, .data-table td {
  text-align: left;
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.data-table th {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  background: var(--surface-3);
  font-weight: 600;
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: rgba(255, 255, 255, 0.02); }

.data-table .name-cell,
.data-table .value-cell,
.data-table .mono {
  font-family: var(--mono);
  font-size: 0.8rem;
}

.data-table .value-cell { max-width: 380px; word-break: break-all; }
.data-table .actions { display: flex; gap: 6px; flex-wrap: wrap; white-space: nowrap; }
.data-table .empty { text-align: center; color: var(--muted); padding: 36px; }

.type-pill {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--accent-soft);
  color: #93c5fd;
}

.type-pill-system { background: rgba(148, 163, 184, 0.15); color: var(--muted); }

.hint { font-size: 0.84rem; color: var(--muted); margin: 0 0 14px; }
.hint.warn { color: #fbbf24; }

.form-stack { display: flex; flex-direction: column; }

.preview {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 14px;
  font-family: var(--mono);
  font-size: 0.75rem;
  line-height: 1.7;
  color: var(--muted);
}

.preview .line-ok { color: var(--success); }

.dkim-note {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--muted);
}

.dkim-note code {
  font-family: var(--mono);
  font-size: 0.78rem;
  background: var(--surface-2);
  padding: 2px 6px;
  border-radius: 4px;
}

.propagation-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 20px;
  align-items: start;
}

.propagation-form .field:last-of-type,
.propagation-form button[type="submit"] {
  grid-column: 1 / -1;
}

.chip-group { display: flex; flex-wrap: wrap; gap: 8px; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  font-size: 0.82rem;
  cursor: pointer;
}

.chip:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: #bfdbfe;
}

.chip input { width: auto; margin: 0; accent-color: var(--accent); }

.checkbox-field {
  flex-direction: row;
  align-items: center;
  gap: 10px;
}

.checkbox-field input { width: auto; accent-color: var(--accent); }
.checkbox-field span { text-transform: none; letter-spacing: 0; font-size: 0.88rem; color: var(--text); }

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}

.summary-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}

.summary-card .label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  font-weight: 600;
}

.summary-card .value {
  margin-top: 6px;
  font-size: 1.35rem;
  font-weight: 600;
}

.summary-card .detail {
  margin-top: 4px;
  font-size: 0.8rem;
  color: var(--muted);
}

.meta-text { font-size: 0.8rem; color: var(--muted); }

.locked-label { font-size: 0.75rem; color: var(--muted); font-style: italic; }

.modal {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0;
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
  max-width: 480px;
  width: calc(100% - 32px);
}

.modal::backdrop { background: rgba(0, 0, 0, 0.65); }
.modal-body { padding: 22px; }
.modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 8px; }

.swal-dns {
  border: 1px solid var(--border) !important;
  border-radius: 12px !important;
  box-shadow: var(--shadow) !important;
}

.swal-dns .swal2-input,
.swal-dns .swal2-textarea {
  background: var(--surface-2) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
}

.swal-dns .swal2-validation-message {
  background: var(--surface-2) !important;
  color: var(--danger) !important;
}

.swal2-timer-progress-bar { background: var(--accent) !important; }

@media (max-width: 1100px) {
  .mail-grid { grid-template-columns: 1fr; }
  .propagation-form { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar-nav {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .nav-list { flex-direction: row; flex-wrap: wrap; }
  .sidebar-foot { display: none; }
  .workspace { padding: 16px; }
}