/* FB5000 Management Dashboard — Styles
 * Aesthetic: minimal white + system fonts
 * Plain vanilla CSS — no build tools, no Tailwind
 */

/* ─── CSS Custom Properties (design tokens) ─────────────────── */
:root {
  /* Backgrounds — pure white base */
  --bg-primary:    #ffffff;
  --bg-secondary:  #fafafa;
  --bg-tertiary:   #f5f5f5;
  --bg-subtle:     #fafafa;
  --bg-row-odd:    #ffffff;

  /* Text — neutral near-black */
  --text-primary:   #1a1a1a;
  --text-secondary: #666666;
  --text-tertiary:  #999999;

  /* Accent — soft blue */
  --accent:       #4a7fc4;
  --accent-hover: #3a6db0;
  --accent-blue:  #4a7fc4;

  /* Status colors — semantic palette */
  --status-active:      #2e7d5b;
  --status-active-bg:   rgba(46, 125, 91, 0.08);
  --status-paused:      #8b8b8b;
  --status-paused-bg:   rgba(139, 139, 139, 0.08);
  --status-error:       #c0392b;
  --status-error-bg:    rgba(192, 57, 43, 0.06);
  --status-banned:      #8e44ad;
  --status-banned-bg:   rgba(142, 68, 173, 0.06);
  --status-warmup:      #d4830a;
  --status-warmup-bg:   rgba(212, 131, 10, 0.06);

  /* Alert colors — semantic */
  --alert-critical:    #c0392b;
  --alert-critical-bg: rgba(192, 57, 43, 0.06);
  --alert-warning:     #d4830a;
  --alert-warning-bg:  rgba(212, 131, 10, 0.06);
  --alert-info:        #4a7fc4;
  --alert-info-bg:     rgba(74, 127, 196, 0.06);
  --alert-clear:       #2e7d5b;

  /* KPI value colors — semantic */
  --kpi-above:   #2e7d5b;
  --kpi-below:   #c0392b;
  --kpi-nodata:  #999999;

  /* Borders */
  --border-default: #e2e8f0;
  --border-subtle:  #edf2f7;
  --border-focus:   #4a7fc4;

  /* Shadows — minimal */
  --shadow-sm:    none;
  --shadow-md:    none;
  --shadow-inset: none;
  --shadow-panel: none;

  /* Spacing (4px unit grid) */
  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  12px;
  --space-lg:  16px;
  --space-xl:  24px;
  --space-2xl: 32px;
  --space-3xl: 48px;

  /* Border radius — subtle rounding */
  --radius-sm:   3px;
  --radius-md:   4px;
  --radius-lg:   6px;
  --radius-full: 9999px;

  /* Table */
  --table-row-h:    40px;
  --table-header-h: 40px;
  --table-px:       12px;
  --table-py:       8px;

  /* Typography — system fonts only */
  --font-heading: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
  --font-body:    -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
  --font-number:  -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
  --font-mono:    ui-monospace, "SF Mono", monospace;

  /* Layout */
  --sidebar-w:    220px;
  --header-h:     48px;
}

/* ─── Reset & Base ───────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.5;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: -0.01em;
}

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

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

/* ─── Layout: Shell ──────────────────────────────────────────── */
.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: var(--header-h) 1fr;
  grid-template-areas:
    "header header"
    "sidebar main";
  min-height: 100vh;
}

/* ─── Header ─────────────────────────────────────────────────── */
.header {
  grid-area: header;
  background: #eef3fa;
  border-bottom: 1px solid #d6e0ee;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-xl);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-logo {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: #2c5282;
  letter-spacing: -0.01em;
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.health-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.75rem;
  font-family: var(--font-body);
  color: var(--text-secondary);
}

/* Health dot uses radius-full (circle) — intentional exception */
.health-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--status-active);
  flex-shrink: 0;
}

.health-dot.degraded { background: var(--status-paused); }
.health-dot.down     { background: var(--status-error); }

.btn-logout {
  background: none;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.75rem;
  padding: 4px 10px;
  cursor: pointer;
  transition: color 150ms, border-color 150ms;
}
.btn-logout:hover {
  color: var(--status-error);
  border-color: var(--status-error);
}

.header-clock {
  font-family: var(--font-number);
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
  color: var(--text-tertiary);
}

.refresh-badge {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.refresh-icon {
  display: inline-block;
}

/* ─── Sidebar ─────────────────────────────────────────────────── */
.sidebar {
  grid-area: sidebar;
  background: #ffffff;
  border-right: 1px solid var(--border-default);
  padding: var(--space-md) 0;
  position: sticky;
  top: var(--header-h);
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
}

.sidebar-nav {
  list-style: none;
}

.sidebar-nav li a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 6px var(--space-lg);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  text-decoration: none;
}

.sidebar-nav li a:hover {
  color: var(--text-primary);
  text-decoration: none;
}

.sidebar-nav li a.active {
  color: #2c5282;
  font-weight: 600;
  border-left: 3px solid #4a7fc4;
  padding-left: calc(var(--space-lg) - 3px);
}

.nav-icon {
  font-size: 1rem;
  width: 18px;
  text-align: center;
  flex-shrink: 0;
  color: var(--text-tertiary);
}

.sidebar-nav li a.active .nav-icon {
  color: #4a7fc4;
}

.sidebar-nav li a:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: -2px;
}

.nav-category {
  font-family: var(--font-body);
  font-size: 0.625rem;
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: var(--space-md) var(--space-lg) var(--space-xs);
  pointer-events: none;
}

.nav-category:first-child {
  padding-top: var(--space-sm);
}

/* ─── Main Content ────────────────────────────────────────────── */
.main {
  grid-area: main;
  padding: var(--space-xl);
  overflow-y: auto;
  background: var(--bg-secondary);
}

.page-title {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-xl);
  color: var(--text-primary);
}

/* ─── Summary Bar ────────────────────────────────────────────── */
.summary-bar {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.summary-card {
  background: #ffffff;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.summary-card .label {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.summary-card .count {
  font-family: var(--font-number);
  font-size: 1.5rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.summary-card.card-active .count  { color: var(--status-active); }
.summary-card.card-paused .count  { color: var(--status-paused); }
.summary-card.card-error  .count  { color: var(--status-error); }
.summary-card.card-banned .count  { color: var(--status-banned); }
.summary-card.card-warmup .count  { color: var(--status-warmup); }
.summary-card.card-pending .count { color: var(--text-secondary); }

/* ─── KPI Panel ──────────────────────────────────────────────── */
.kpi-panel {
  background: #ffffff;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-xl);
  margin-bottom: var(--space-xl);
}

.kpi-panel-title {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-lg);
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-lg);
}

.kpi-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.kpi-label {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.kpi-value {
  font-family: var(--font-number);
  font-size: 1.25rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  color: var(--text-primary);
}

.kpi-value.above-target { color: var(--kpi-above); }
.kpi-value.below-target { color: var(--kpi-below); }
.kpi-value.no-data      { color: var(--kpi-nodata); }

.kpi-sub {
  font-family: var(--font-number);
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-variant-numeric: tabular-nums;
}

/* ─── Alert Panel ────────────────────────────────────────────── */
.alert-panel {
  background: #ffffff;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.alert-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-default);
}

.alert-panel-header h2 {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.alert-badge-count {
  background: var(--alert-critical);
  color: #ffffff;
  font-family: var(--font-number);
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  min-width: 20px;
  text-align: center;
}

.alert-badge-count.hidden { display: none; }

.alert-list {
  list-style: none;
}

.alert-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-default);
  font-size: 0.8125rem;
}

.alert-item:last-child {
  border-bottom: none;
}

.alert-item.alert-critical { background: var(--alert-critical-bg); }
.alert-item.alert-warning  { background: transparent; }
.alert-item.alert-info     { background: transparent; }

/* Severity dot: uses radius-full (circle) — intentional exception */
.alert-severity-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
  margin-top: 6px;
}

.alert-critical .alert-severity-dot { background: var(--alert-critical); }
.alert-warning  .alert-severity-dot { background: var(--alert-warning); }
.alert-medium   .alert-severity-dot { background: var(--alert-warning); }
.alert-info     .alert-severity-dot { background: var(--alert-info); }
.alert-high     .alert-severity-dot { background: var(--alert-critical); }
.alert-low      .alert-severity-dot { background: var(--alert-info); }

.alert-item.alert-medium  { background: var(--alert-warning-bg); }
.alert-item.alert-high    { background: var(--alert-critical-bg); }
.alert-item.alert-low     { background: var(--alert-info-bg); }

.alert-severity-label {
  font-size: 0.625rem;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  margin-left: var(--space-xs);
  vertical-align: middle;
}
.alert-sev-critical { background: rgba(192, 57, 43, 0.10); color: #c0392b; }
.alert-sev-high     { background: rgba(192, 57, 43, 0.08); color: #c0392b; }
.alert-sev-warning  { background: rgba(212, 131, 10, 0.10); color: #d4830a; }
.alert-sev-medium   { background: rgba(212, 131, 10, 0.08); color: #b87306; }
.alert-sev-info     { background: rgba(74, 127, 196, 0.08); color: #4a7fc4; }
.alert-sev-low      { background: rgba(74, 127, 196, 0.06); color: #6b9ad0; }

.alert-body {
  flex: 1;
}

.alert-project {
  font-family: var(--font-body);
  font-weight: 500;
  color: var(--text-primary);
}

.alert-message {
  color: var(--text-secondary);
  margin-top: 2px;
}

.alert-time {
  font-family: var(--font-number);
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  flex-shrink: 0;
}

/* Zero-alert state */
.alert-all-clear {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-2xl) var(--space-lg);
  color: var(--alert-clear);
  font-size: 0.9375rem;
  font-weight: 500;
}

.alert-all-clear-icon {
  font-size: 1.25rem;
}

/* ─── Status Badges ──────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 500;
  white-space: nowrap;
  line-height: 1.4;
}

.badge-active    { color: #2e7d5b;  background: rgba(46, 125, 91, 0.10); }
.badge-paused    { color: #8b8b8b;  background: rgba(139, 139, 139, 0.10); }
.badge-error     { color: #c0392b;  background: rgba(192, 57, 43, 0.08); }
.badge-banned    { color: #8e44ad;  background: rgba(142, 68, 173, 0.08); }
.badge-warmup    { color: #d4830a;  background: rgba(212, 131, 10, 0.08); }
.badge-pending   { color: #8b8b8b;  background: rgba(139, 139, 139, 0.08); }
.badge-requested { color: #4a7fc4;  background: rgba(74, 127, 196, 0.08); }
.badge-accepted  { color: #2e7d5b;  background: rgba(46, 125, 91, 0.08); }
.badge-dm1_sent  { color: #4a7fc4;  background: rgba(74, 127, 196, 0.08); }
.badge-dm2_sent  { color: #4a7fc4;  background: rgba(74, 127, 196, 0.08); }
.badge-replied   { color: #2874a6;  background: rgba(40, 116, 166, 0.08); }
.badge-appointed { color: #2e7d5b;  background: rgba(46, 125, 91, 0.10); }
.badge-expired   { color: #999999;  background: rgba(153, 153, 153, 0.08); }

/* ─── Data Table ─────────────────────────────────────────────── */
.table-wrapper {
  background: #ffffff;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-default);
}

.table-toolbar h2 {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.table-count {
  font-family: var(--font-number);
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-variant-numeric: tabular-nums;
}

.data-table-scroll {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table thead {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg-tertiary);
}

.data-table th {
  height: var(--table-header-h);
  padding: var(--table-py) var(--table-px);
  text-align: left;
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border-default);
  white-space: nowrap;
}

.data-table th.col-num   { width: 40px; }
.data-table th.col-right,
.data-table td.col-right { text-align: right; }

.data-table td {
  height: var(--table-row-h);
  padding: var(--table-py) var(--table-px);
  border-bottom: 1px solid var(--border-default);
  color: var(--text-primary);
  vertical-align: middle;
  white-space: nowrap;
}

/* Table striping: white / light gray */
.data-table tbody tr:nth-child(odd)  { background: var(--bg-primary); }
.data-table tbody tr:nth-child(even) { background: var(--bg-secondary); }

/* Error/banned row overrides */
.data-table tbody tr.row-error  { background: var(--status-error-bg)  !important; }
.data-table tbody tr.row-banned { background: var(--status-banned-bg) !important; }

.data-table tbody tr:hover {
  background: var(--bg-tertiary) !important;
}

.data-table td.col-num { color: var(--text-tertiary); }

/* KPI columns: tabular-nums for numbers */
.data-table .col-kpi {
  font-family: var(--font-number);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.data-table .timestamp {
  font-family: var(--font-number);
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  font-variant-numeric: tabular-nums;
}

/* ─── Action Buttons ─────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 4px 10px;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: opacity 150ms ease, background 150ms ease;
  text-decoration: none;
}

.btn:hover { opacity: 0.85; text-decoration: none; }
.btn:focus-visible { outline: 2px solid var(--border-focus); outline-offset: 2px; }
.btn:active { opacity: 0.7; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-pause {
  background: var(--status-paused-bg);
  color: var(--status-paused);
  border-color: rgba(107, 114, 128, 0.25);
}

.btn-resume {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border-color: var(--border-default);
}

/* Primary action button: soft blue */
.btn-primary {
  background: #4a7fc4;
  color: #ffffff;
  border-color: transparent;
  padding: 6px 14px;
  font-size: 0.8125rem;
}

.btn-primary:hover {
  background: #3a6db0;
}

/* Filter apply button */
.btn-filter {
  background: #4a7fc4;
  color: #ffffff;
  border-color: transparent;
  padding: 6px 16px;
}

/* Add target button */
.btn-add {
  background: #eef3fa;
  color: #4a7fc4;
  border-color: #b8ceea;
  padding: 6px 20px;
}

.btn-add:hover {
  background: #dde8f6;
}

.btn-delete {
  background: var(--status-error-bg);
  color: var(--status-error);
  border-color: rgba(192, 57, 43, 0.2);
}
.btn-delete:hover {
  background: rgba(192, 57, 43, 0.12);
}

.btn-actions {
  display: flex;
  gap: var(--space-xs);
}

/* ─── Loading / Empty States ─────────────────────────────────── */
.loading-row td {
  text-align: center;
  color: var(--text-tertiary);
  padding: var(--space-3xl) !important;
  font-style: italic;
}

.error-row td {
  text-align: center;
  color: var(--status-error);
  padding: var(--space-3xl) !important;
}

/* ─── Scrollbar Styling (WebKit) ─────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: #d1d5db; border-radius: 3px; }  /* gray-300 */
::-webkit-scrollbar-thumb:hover { background: var(--text-tertiary); }

/* ─── Filter Bar ─────────────────────────────────────────────── */
.filter-bar {
  display: flex;
  align-items: flex-end;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.filter-label {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.filter-select,
.form-input {
  background: #ffffff;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  padding: 6px 10px;
  min-width: 140px;
  transition: border-color 150ms ease;
}

.filter-select:focus,
.form-input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px rgba(74, 127, 196, 0.15);
}

/* ─── Add Target Panel ───────────────────────────────────────── */
.add-target-panel {
  background: #ffffff;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-xl);
  margin-bottom: var(--space-xl);
}

.panel-title {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-md);
}

.add-target-form .form-row {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  min-width: 140px;
}

.form-group-wide {
  flex: 1;
  min-width: 280px;
}

.form-label {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ─── Pagination ─────────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--border-default);
}

.pagination .btn-page {
  background: #ffffff;
  color: var(--text-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 4px 10px;
  font-family: var(--font-body);
  font-size: 0.75rem;
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease;
}

.pagination .btn-page:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.pagination .btn-page.active {
  background: #4a7fc4;
  color: #ffffff;
  border-color: #4a7fc4;
  font-weight: 500;
}

.pagination .btn-page:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.pagination .page-info {
  font-family: var(--font-number);
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-variant-numeric: tabular-nums;
  margin: 0 var(--space-sm);
}

/* ─── Toast Notification ─────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 150ms ease;
}

.toast.show {
  opacity: 1;
}

.toast-success {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
}

.toast-error {
  background: var(--bg-tertiary);
  color: #3a3a3a;
  border: 1px solid var(--border-default);
}

/* No animations — minimal design */

/* ─── Responsive: Tablet (≤ 1024px) ─────────────────────────── */
@media (max-width: 1024px) {
  .summary-bar { grid-template-columns: repeat(3, 1fr); }
  .kpi-grid    { grid-template-columns: repeat(3, 1fr); }
}

/* ─── Responsive: Mobile (≤ 768px) ──────────────────────────── */
@media (max-width: 768px) {
  :root {
    --sidebar-w: 0px;
    --header-h: 52px;
  }

  .app-shell {
    grid-template-columns: 1fr;
    grid-template-areas:
      "header"
      "main";
  }

  .sidebar { display: none; }

  .summary-bar { grid-template-columns: repeat(2, 1fr); }
  .kpi-grid    { grid-template-columns: repeat(2, 1fr); }

  .data-table-scroll { font-size: 0.8125rem; }
}

/* ─── Modal ────────────────────────────────────────────────── */
.modal-overlay {
  display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.3);
  z-index: 1000; align-items: center; justify-content: center;
}
.modal-overlay.show { display: flex; }
.modal-box {
  background: #ffffff; border-radius: var(--radius-md); padding: var(--space-xl);
  width: 100%; max-width: 480px;
  border: 1px solid var(--border-default);
}
.modal-title {
  font-family: var(--font-heading); font-size: 1rem; font-weight: 600;
  color: var(--text-primary); margin-bottom: var(--space-lg);
}
.modal-field { margin-bottom: var(--space-md); }
.modal-field label {
  display: block; font-size: 0.75rem; color: var(--text-tertiary);
  text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 4px;
}
.modal-field input, .modal-field textarea, .modal-field select {
  width: 100%; font-family: var(--font-body); font-size: 0.875rem;
  padding: 8px 12px; border: 1px solid var(--border-default);
  border-radius: var(--radius-sm); background: var(--bg-subtle); color: var(--text-primary);
}
.modal-field textarea { min-height: 80px; resize: vertical; }
.modal-actions {
  display: flex; gap: var(--space-md); justify-content: flex-end; margin-top: var(--space-lg);
}
.btn-primary {
  background: #4a7fc4; color: #fff; border: none; border-radius: var(--radius-md);
  padding: 8px 18px; font-family: var(--font-body); font-size: 0.875rem;
  cursor: pointer; transition: opacity 150ms;
}
.btn-primary:hover { background: #3a6db0; }
.btn-secondary {
  background: var(--bg-subtle); color: var(--text-secondary); border: 1px solid var(--border-default);
  border-radius: var(--radius-md); padding: 8px 18px; font-family: var(--font-body);
  font-size: 0.875rem; cursor: pointer;
}
.btn-danger {
  background: #c0392b; color: #fff; border: none; border-radius: var(--radius-md);
  padding: 8px 18px; font-family: var(--font-body); font-size: 0.875rem; cursor: pointer;
}
.btn-danger:hover { background: #a93226; }

/* Invite link result */
.invite-result {
  background: var(--bg-subtle); border: 1px solid var(--border-default);
  border-radius: var(--radius-sm); padding: var(--space-md); margin-top: var(--space-md);
  word-break: break-all; font-family: var(--font-mono); font-size: 0.8125rem;
  color: var(--text-primary);
}

/* Toolbar */
.table-toolbar-actions {
  display: flex; gap: var(--space-sm); align-items: center; flex-wrap: wrap;
}
.table-toolbar-left {
  display: flex; align-items: center; gap: var(--space-md); flex: 1;
}

/* Checkbox in table */
.col-check { width: 32px; text-align: center; }
.col-check input[type="checkbox"] { cursor: pointer; width: 16px; height: 16px; }

/* Warmup progress bar */
.warmup-bar {
  background: var(--bg-subtle); border: 1px solid var(--border-default);
  border-radius: var(--radius-md); padding: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-lg);
}
.warmup-bar-title {
  font-size: 0.75rem; color: var(--text-tertiary); text-transform: uppercase;
  letter-spacing: 0.04em; margin-bottom: var(--space-sm);
}
.warmup-progress {
  background: var(--bg-tertiary); border-radius: 999px; height: 8px; overflow: hidden;
}
.warmup-progress-fill {
  height: 100%; border-radius: 999px; background: #d4830a;
  transition: width 200ms ease;
}
.warmup-meta {
  display: flex; justify-content: space-between; margin-top: var(--space-xs);
  font-size: 0.75rem; color: var(--text-secondary);
}

/* ─── KPI Freshness Timestamp ─────────────────────────────────── */
.kpi-freshness {
  font-size: 0.7rem;
  color: var(--text-tertiary);
  margin-top: var(--space-xs);
  font-family: var(--font-body);
}
.kpi-freshness.stale {
  color: var(--text-secondary);
}

/* ─── Health Check Panel ──────────────────────────────────────── */
.health-details {
  background: #ffffff;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  margin-top: var(--space-lg);
}

.health-summary {
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  user-select: none;
}
.health-summary::-webkit-details-marker { display: none; }
.health-summary::before {
  content: '▶';
  font-size: 0.5rem;
  color: var(--text-tertiary);
}
details[open] .health-summary::before {
  transform: rotate(90deg);
}

.health-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg) var(--space-lg);
}

.health-check-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
}

.health-check-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
  margin-top: 3px;
}
.health-check-dot.ok       { background: #2e7d5b; }
.health-check-dot.warning  { background: #d4830a; }
.health-check-dot.critical { background: #c0392b; }

.health-check-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.health-check-name {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.health-check-value {
  font-family: var(--font-number);
  font-size: 0.6875rem;
  color: var(--text-tertiary);
  font-variant-numeric: tabular-nums;
}
.health-check-value.critical { color: #c0392b; }
.health-check-value.warning  { color: #d4830a; }