:root {
  --bg: #e8ecf2;
  --bg-grid: #dce2ea;
  --surface: #ffffff;
  --surface-2: #f4f6f9;
  --surface-3: #eef1f6;
  --border: #c5ced9;
  --border-strong: #9aa8b8;
  --text: #1a2332;
  --text-secondary: #3d4f63;
  --text-muted: #5c6b7e;
  --mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', monospace;
  --sans: 'IBM Plex Sans', system-ui, sans-serif;
  --accent: #0b5fff;
  --accent-dim: #e8f1ff;
  --accent-border: #8eb8ff;
  --ok: #00875a;
  --ok-dim: #e3fcef;
  --ok-border: #57d9a3;
  --warn: #ff8b00;
  --warn-dim: #fff4e6;
  --err: #de350b;
  --err-dim: #ffebe6;
  --err-border: #ff8f73;
  --cyan: #00a3bf;
  --cyan-dim: #e6fcff;
  --radius: 4px;
  --shadow: 0 1px 0 rgba(26, 35, 50, 0.06), 0 8px 24px rgba(26, 35, 50, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--sans);
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--bg-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--text);
  line-height: 1.5;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

#app { position: relative; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 20px 40px;
}

h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -0.01em; color: var(--text); }
h1 { font-size: 1.5rem; font-family: var(--mono); font-weight: 600; }
h2 { font-size: 1.25rem; }
h3 { font-size: 0.9375rem; font-weight: 600; }
.muted { color: var(--text-secondary); }
.text-sm { font-size: 0.8125rem; }
.mono { font-family: var(--mono); }

.grid { display: grid; gap: 12px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

/* ——— Console bar ——— */
.topbar,
.console-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 0;
  margin-bottom: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.brand {
  display: flex;
  align-items: stretch;
  gap: 0;
  min-width: 0;
}

.brand-icon {
  width: 48px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  border-right: 1px solid #0047cc;
}

.brand-logo { width: 24px; height: 24px; display: block; }

.brand > div:last-child {
  padding: 10px 16px;
  border-right: 1px solid var(--border);
}

.brand-title {
  font-family: var(--mono);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text);
}

.brand-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
  font-family: var(--mono);
}

.console-status {
  flex: 1;
  padding: 10px 16px;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  border-right: 1px solid var(--border);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.console-status strong { color: var(--ok); font-weight: 600; }

.console-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
}

.user-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.user-dot {
  width: 7px;
  height: 7px;
  border-radius: 1px;
  background: var(--ok);
}

/* ——— Panels ——— */
.panel,
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  box-shadow: 0 1px 0 rgba(26, 35, 50, 0.04);
}

.panel-header,
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--surface-3);
  border-bottom: 1px solid var(--border);
}

.panel-header-main {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.panel-id {
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  padding: 3px 8px;
  border-radius: var(--radius);
  white-space: nowrap;
}

.panel-title { font-size: 0.875rem; font-weight: 600; }
.panel-meta, .card-header .muted { font-size: 0.75rem; color: var(--text-muted); margin-top: 2px; font-family: var(--mono); }

.panel-body,
.card > .panel-body,
.card:not(:has(.panel-header)):not(:has(.card-header)) {
  padding: 14px;
}

.card:has(.card-header) > :not(.card-header):not(.panel-header) {
  padding: 14px;
}

.card-header + .mailer-grid,
.card-header + .data-table-wrap,
.card-header + .preset-row,
.card-header + .tabs,
.card-header + .events-list,
.card-header + .info-banner,
.card-header + .empty-state,
.panel-header + .panel-body {
  padding: 14px;
}

.panel-actions, .card-header > button, .card-header .row { flex-shrink: 0; }

.panel.panel-cyan .panel-id { color: var(--cyan); background: var(--cyan-dim); border-color: #79e2f2; }
.panel.panel-cyan .panel-header { border-left: 3px solid var(--cyan); }

.section-label {
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}

/* ——— Metrics ——— */
.stat-grid,
.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 14px;
}

.stat-card,
.metric {
  padding: 12px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  border-left: 3px solid var(--border-strong);
}

.stat-card.stat-sent, .metric.metric-sent { border-left-color: var(--ok); background: linear-gradient(90deg, var(--ok-dim) 0%, var(--surface) 40%); }
.stat-card.stat-queue, .metric.metric-queue { border-left-color: var(--accent); background: linear-gradient(90deg, var(--accent-dim) 0%, var(--surface) 40%); }
.stat-card.stat-errors, .metric.metric-err { border-left-color: var(--err); background: linear-gradient(90deg, var(--err-dim) 0%, var(--surface) 40%); }
.stat-card.stat-active, .metric.metric-active { border-left-color: var(--warn); background: linear-gradient(90deg, var(--warn-dim) 0%, var(--surface) 40%); }

.stat-label,
.metric-key {
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.stat-value,
.metric-val {
  font-family: var(--mono);
  font-size: 1.75rem;
  font-weight: 600;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

/* ——— Data tables ——— */
.data-table-wrap,
.mail-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.data-table,
.mail-table,
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.data-table th,
.data-table td,
.mail-table th,
.mail-table td,
th, td {
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.data-table th,
.mail-table th,
th {
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--surface-3);
  white-space: nowrap;
}

.data-table tbody tr:hover,
.mail-table tbody tr:hover { background: var(--accent-dim); }
.data-table tbody tr:last-child td,
.mail-table tbody tr:last-child td { border-bottom: none; }

.data-table .cell-mono,
.mail-table .mono {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.data-table .cell-num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.data-table .cell-actions {
  text-align: right;
  white-space: nowrap;
}

.data-table .cell-actions .row { justify-content: flex-end; }

/* ——— Legacy mailer cards (detail pages) ——— */
.mailer-grid { display: grid; gap: 8px; }

.mailer-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 12px 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.mailer-card:hover { border-color: var(--accent-border); background: var(--accent-dim); }

.mailer-name { font-weight: 600; font-size: 0.875rem; font-family: var(--mono); }
.mailer-meta { font-size: 0.75rem; color: var(--text-muted); font-family: var(--mono); }

.mailer-stats { display: flex; gap: 16px; margin-top: 8px; }
.mailer-stat-label { font-family: var(--mono); font-size: 0.625rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); }
.mailer-stat-value { font-family: var(--mono); font-size: 0.875rem; font-weight: 600; }
.mailer-actions-row { display: flex; gap: 4px; flex-wrap: wrap; justify-content: flex-end; }

/* ——— Status LED ——— */
.badge,
.status-led {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 8px;
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border: 1px solid transparent;
}

.badge::before,
.status-led::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 1px;
}

.badge.running,
.status-led.on {
  background: var(--ok-dim);
  color: var(--ok);
  border-color: var(--ok-border);
}

.badge.running::before,
.status-led.on::before {
  background: var(--ok);
  animation: blink 2s step-end infinite;
}

.badge.stopped,
.status-led.off {
  background: var(--surface-3);
  color: var(--text-muted);
  border-color: var(--border);
}

.badge.stopped::before,
.status-led.off::before { background: #94a3b8; }

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* ——— Chips ——— */
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.8125rem;
}

.chip-key { font-family: var(--mono); font-size: 0.6875rem; font-weight: 600; text-transform: uppercase; color: var(--text-muted); }
.chip-val { font-family: var(--mono); font-weight: 600; font-variant-numeric: tabular-nums; }
.chip.chip-pending { border-color: var(--accent-border); background: var(--accent-dim); }
.chip.chip-pending .chip-val { color: var(--accent); }

/* ——— Event log ——— */
.events-list {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
  font-family: var(--mono);
  font-size: 0.75rem;
}

.event-item {
  display: grid;
  grid-template-columns: 168px 100px 1fr;
  gap: 12px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

.event-item:nth-child(even) { background: rgba(255, 255, 255, 0.55); }
.event-item:last-child { border-bottom: none; }

.event-time {
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.event-type {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 0.6875rem;
}

.event-item.event-ok .event-type { color: var(--ok); }
.event-item.event-bad .event-type { color: var(--err); }
.event-item.event-muted .event-type { color: var(--text-muted); }

.event-message { color: var(--text-secondary); word-break: break-word; grid-column: 3; }
.event-body { display: contents; }
.event-recipient { color: var(--text-muted); font-size: 0.6875rem; grid-column: 3; }

.event-item.clickable { cursor: pointer; }
.event-item.clickable:hover { background: var(--accent-dim) !important; }

.events-list-header {
  display: grid;
  grid-template-columns: 168px 100px 1fr;
  gap: 12px;
  padding: 6px 12px;
  background: var(--surface-3);
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.empty-state {
  text-align: center;
  padding: 32px 16px;
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 0.8125rem;
}

.empty-icon { display: none; }

/* ——— Forms ——— */
label {
  display: block;
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 5px;
}

input, textarea, select {
  width: 100%;
  padding: 8px 10px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.8125rem;
  transition: border-color 0.1s, box-shadow 0.1s;
}

input:hover, textarea:hover, select:hover { border-color: var(--border-strong); }

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-dim);
}

input[type="checkbox"] { width: auto; margin-right: 8px; accent-color: var(--accent); }

.form-section {
  grid-column: 1 / -1;
  padding-top: 12px;
  margin-top: 4px;
  border-top: 1px solid var(--border);
}

.form-section-title {
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.checkbox-row label {
  display: flex;
  align-items: center;
  cursor: pointer;
  text-transform: none;
  font-size: 0.8125rem;
  font-family: var(--sans);
  color: var(--text-secondary);
}

/* ——— Buttons ——— */
button {
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 7px 12px;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: background 0.1s, border-color 0.1s;
}

button:hover { background: #004fd9; }
button:active { transform: translateY(1px); }

button.secondary {
  background: var(--surface);
  color: var(--text-secondary);
  border-color: var(--border);
}

button.secondary:hover {
  background: var(--surface-2);
  border-color: var(--border-strong);
  color: var(--text);
}

button.success {
  background: var(--ok);
  border-color: #006644;
}

button.success:hover { background: #006644; }

button.danger {
  background: var(--surface);
  color: var(--err);
  border-color: var(--err-border);
}

button.danger:hover { background: var(--err-dim); }

button.ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: transparent;
  text-transform: none;
  font-weight: 500;
}

button.ghost:hover { background: var(--surface-2); color: var(--text); }

button.btn-sm { padding: 5px 9px; font-size: 0.6875rem; }

/* ——— Login ——— */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-shapes { display: none; }

.login-card {
  width: 100%;
  max-width: 400px;
  padding: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.login-card-head {
  padding: 14px 18px;
  background: var(--surface-3);
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.login-brand {
  text-align: center;
  padding: 28px 24px 8px;
}

.login-brand .brand-icon {
  margin: 0 auto 14px;
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  border: none;
}

.login-brand .brand-logo { width: 28px; height: 28px; }

.login-brand h2 {
  font-family: var(--mono);
  font-size: 1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 6px;
  color: var(--text);
}

.login-brand p { margin: 0; font-size: 0.8125rem; }

#login-form { padding: 16px 24px 24px; }

.login-card button[type="submit"] { width: 100%; padding: 10px; margin-top: 6px; }

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

.captcha-box {
  flex: 1;
  min-height: 56px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.captcha-box svg {
  display: block;
  width: 100%;
  max-width: 200px;
  height: auto;
}

.captcha-loading {
  font-size: 0.75rem;
  color: var(--text-muted);
  padding: 16px;
}

.error {
  color: var(--err);
  font-family: var(--mono);
  font-size: 0.75rem;
  margin-top: 10px;
  padding: 8px 10px;
  background: var(--err-dim);
  border: 1px solid var(--err-border);
  border-radius: var(--radius);
}

.form-message {
  padding: 8px 10px;
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 0.75rem;
}

.form-message.ok { background: var(--ok-dim); color: var(--ok); border: 1px solid var(--ok-border); }
.form-message.err { background: var(--err-dim); color: var(--err); border: 1px solid var(--err-border); }

/* ——— Presets ——— */
.preset-row { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.preset-btn { font-family: var(--mono); }

/* ——— Detail ——— */
.detail-header { margin-bottom: 16px; }

.detail-title-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.detail-sub {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-top: 8px;
}

.detail-sub code {
  font-family: var(--mono);
  font-size: 0.75rem;
  padding: 3px 8px;
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
}

.info-banner {
  display: flex;
  gap: 10px;
  padding: 10px 12px;
  margin-bottom: 12px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.info-banner.warning { background: var(--err-dim); border-color: var(--err-border); color: #a54830; }
.info-banner.cyan { background: var(--cyan-dim); border-color: #79e2f2; color: #0e6f80; }
.info-banner-icon { display: none; }

/* ——— Tabs ——— */
.tabs { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 12px; }

.tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
}

.tab:hover { border-color: var(--accent-border); color: var(--accent); background: var(--accent-dim); }

.tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.tab-count {
  font-variant-numeric: tabular-nums;
  opacity: 0.85;
}

.tab:not(.active) .tab-count { color: var(--text-muted); }

.mail-table th { position: sticky; top: 0; z-index: 1; }
.mail-table .nowrap { white-space: nowrap; font-variant-numeric: tabular-nums; }
.mail-table .subject-cell { max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mail-table-footer { margin-top: 10px; font-family: var(--mono); font-size: 0.75rem; }
.mail-table tbody tr.mail-row { cursor: pointer; }

.attach-badge {
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: var(--radius);
  background: var(--surface-3);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

/* ——— Docs panel ——— */
.help-card .panel-body { padding: 0; }

.docs-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.8125rem;
}

.docs-list li {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

.docs-list li:last-child { border-bottom: none; }

.docs-list code {
  font-family: var(--mono);
  font-size: 0.75rem;
  background: var(--surface-3);
  padding: 1px 5px;
  border-radius: 2px;
}

.help-num {
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--accent);
  padding-top: 2px;
}

/* ——— Modal ——— */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(26, 35, 50, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 1000;
}

.modal {
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0;
  box-shadow: var(--shadow);
}

.modal.modal-lg { max-width: 860px; }

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 16px;
  background: var(--surface-3);
  border-bottom: 1px solid var(--border);
}

.modal-header h3 { font-family: var(--mono); font-size: 0.875rem; }
.modal > :not(.modal-header) { padding: 16px; }
.modal-section { margin-top: 14px; }

.code-block {
  margin: 0;
  padding: 12px;
  background: #1a2332;
  color: #c8d4e3;
  border: 1px solid #2d3a4d;
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 0.75rem;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 280px;
  overflow: auto;
}

.detail-label {
  display: block;
  font-family: var(--mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.mail-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding: 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.8125rem;
}

.attach-list { display: flex; flex-wrap: wrap; gap: 6px; }

.attach-link {
  font-family: var(--mono);
  font-size: 0.75rem;
  padding: 6px 10px;
  border-radius: var(--radius);
  background: var(--surface-3);
  border: 1px solid var(--border);
  color: var(--accent);
  text-decoration: none;
}

.attach-link:hover { border-color: var(--accent-border); background: var(--accent-dim); }

.mail-body-preview {
  padding: 12px;
  background: #fff;
  color: #111;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-height: 320px;
  overflow: auto;
  font-size: 0.8125rem;
}

.card.card-hook { border-top: 2px solid var(--cyan); }

.metric-grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 900px) {
  .grid-2, .grid-3, .stat-grid, .metric-grid { grid-template-columns: 1fr; }
  .metric-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .mailer-card { grid-template-columns: 1fr; }
  .event-item, .events-list-header { grid-template-columns: 1fr; gap: 4px; }
  .console-bar { flex-direction: column; align-items: stretch; }
  .console-status { border-right: none; border-bottom: 1px solid var(--border); }
  .brand > div:last-child { border-right: none; }
  .mail-detail-grid { grid-template-columns: 1fr; }
  .data-table .cell-actions .row { justify-content: flex-start; }
  .panel-header { flex-direction: column; align-items: stretch; }
}