/* =============================================================================
   ArgusBoard Design System — components.css
   Reusable UI Components
   ============================================================================= */

/* ---------------------------------------------------------------------------
   1. Navigation
   --------------------------------------------------------------------------- */
/* ---------------------------------------------------------------------------
   1. Navigation — Dark Chrome Frame
   The nav is dark in BOTH themes: the design is a dark chrome frame
   (nav + footer) wrapped around a colored content canvas.
   Source: argusboard.com/docs/design-reference.md §3
   --------------------------------------------------------------------------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--navbar-height);
  background-color: rgba(30, 30, 30, 0.86);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  padding-inline: var(--space-6);
  gap: var(--space-4);
}

/* In the dark chrome navbar the same button needs light-on-dark treatment */
.navbar .btn-icon {
  background-color: transparent;
  border: none;
  color: rgba(254, 254, 254, 0.7);
}

.navbar .btn-icon:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border: none;
  color: #fefefe;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.navbar-brand-logo {
  height: 32px;
  width: auto;
  /* Logo has a solid black background — screen blend drops the black
     and keeps only the coloured letters visible on dark chrome. */
  mix-blend-mode: screen;
}

.navbar-brand-text {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: #fefefe;
  letter-spacing: -0.01em;
}

.navbar-search {
  flex: 1;
  max-width: 400px;
  position: relative;
}

.navbar-search-icon {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  color: rgba(254, 254, 254, 0.5);
  pointer-events: none;
  font-size: var(--font-size-sm);
}

.navbar-search-input {
  width: 100%;
  height: 36px;
  padding: 0 var(--space-3) 0 calc(var(--space-3) * 2 + 1em);
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 0;
  color: #fefefe;
  font-size: var(--font-size-sm);
  transition: border-color var(--transition-base), background-color var(--transition-base);
  outline: none;
}

.navbar-search-input::placeholder {
  color: rgba(254, 254, 254, 0.5);
}

.navbar-search-input:focus {
  border-color: var(--color-accent);
  background-color: rgba(255, 255, 255, 0.12);
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-left: auto;
}

.navbar-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  color: rgba(254, 254, 254, 0.7);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: 0;
  text-decoration: none;
  transition: color var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
}

.navbar-link:hover {
  color: #fefefe;
  background-color: rgba(255, 255, 255, 0.08);
  text-decoration: none;
}

.navbar-link.is-active {
  color: #fefefe;
}

.navbar-link-icon {
  font-size: 1.1em;
  line-height: 1;
}

.navbar-divider {
  width: 1px;
  height: 20px;
  background-color: rgba(255, 255, 255, 0.16);
  margin-inline: var(--space-2);
}

/* Nav dropdown */
.nav-dropdown {
  position: relative;
  display: inline-flex;
}

.nav-dropdown::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 12px;
}

.nav-dropdown-panel {
  display: none;
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  min-width: 220px;
  background-color: #1e1e1e;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 0;
  box-shadow: none;
  z-index: 200;
  overflow: hidden;
}

.nav-dropdown-panel-left {
  left: 0;
  right: auto;
}

.nav-dropdown:hover .nav-dropdown-panel,
.nav-dropdown:focus-within .nav-dropdown-panel,
.nav-dropdown.is-open .nav-dropdown-panel {
  display: block;
}

.nav-dropdown-item {
  display: block;
  padding: var(--space-2) var(--space-4);
  color: rgba(254, 254, 254, 0.7);
  font-size: var(--font-size-sm);
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-left-color var(--transition-fast);
  border-left: 2px solid transparent;
}

.nav-dropdown-item:hover {
  background-color: rgba(255, 255, 255, 0.08);
  color: #fefefe;
  text-decoration: none;
  border-left-color: var(--color-accent);
}

/* ---------------------------------------------------------------------------
   Mobile Hamburger Menu
   --------------------------------------------------------------------------- */
.navbar-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: 0;
  color: rgba(254, 254, 254, 0.7);
  transition: background-color var(--transition-fast), color var(--transition-fast);
  flex-shrink: 0;
  margin-left: auto;
}

.navbar-hamburger:hover {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-primary);
}

.navbar-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: currentColor;
  border-radius: 0;
  transition: transform var(--transition-base), opacity var(--transition-base);
  transform-origin: center;
}

/* Animate hamburger → X when open */
.navbar-hamburger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.navbar-hamburger.is-open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.navbar-hamburger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@keyframes navSlideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
  .navbar-hamburger {
    display: flex;
  }

  /* Constrain search so hamburger fits */
  .navbar-search {
    max-width: 200px;
  }

  /* Mobile nav panel — hidden by default, shown when .is-open.
     Opaque dark chrome, matching the navbar frame. */
  .navbar-nav {
    display: none;
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background-color: #1e1e1e;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding: var(--space-4);
    overflow-y: auto;
    z-index: 90;
    margin-left: 0;
    animation: navSlideDown var(--transition-base) ease;
  }

  .navbar-nav.is-open {
    display: flex;
  }

  /* Larger tap targets */
  .navbar-link {
    padding: var(--space-3) var(--space-4);
    min-height: 44px;
    font-size: var(--font-size-base);
    border-radius: 0;
    display: flex;
    align-items: center;
  }

  /* Horizontal divider on mobile */
  .navbar-divider {
    width: 100%;
    height: 1px;
    margin-block: var(--space-3);
    margin-inline: 0;
  }

  /* OpenClaw dropdown: static on mobile */
  .nav-dropdown {
    flex-direction: column;
  }

  .nav-dropdown.is-open .nav-dropdown-panel {
    display: block;
  }

  .nav-dropdown-panel {
    position: static;
    box-shadow: none;
    border: none;
    border-left: 2px solid var(--color-border);
    margin-left: var(--space-6);
    border-radius: 0;
    background-color: transparent;
    padding-block: var(--space-1);
    min-width: unset;
    width: 100%;
  }

  .nav-dropdown-item {
    min-height: 44px;
    display: flex;
    align-items: center;
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-base);
  }

  /* Theme button sizing */
  .btn-icon {
    min-height: 44px;
    min-width: 44px;
  }
}

/* ---------------------------------------------------------------------------
   2. Buttons
   --------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  transition: background-color var(--transition-fast), border-color var(--transition-fast),
              color var(--transition-fast), filter var(--transition-fast);
  white-space: nowrap;
  line-height: 1;
  outline: none;
}

.btn:hover {
  filter: brightness(0.95);
}

.btn:active {
  filter: brightness(0.88);
  transform: translateY(0.5px);
}

.btn:focus-visible {
  box-shadow: 0 0 0 3px var(--color-accent-dim);
}

.btn-primary,
a.btn-primary,
a.btn.btn-primary,
button.btn-primary {
  background-color: var(--color-btn-primary-bg);
  color: var(--color-on-accent) !important;
  border-color: var(--color-btn-primary-bg);
}

.btn-primary:visited,
a.btn-primary:visited,
a.btn.btn-primary:visited,
button.btn-primary:visited {
  color: var(--color-on-accent) !important;
}

.btn-primary:hover,
a.btn-primary:hover,
a.btn.btn-primary:hover,
button.btn-primary:hover {
  background-color: var(--color-btn-primary-hover);
  border-color: var(--color-btn-primary-hover);
  color: var(--color-on-accent) !important;
  text-decoration: none;
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-text-primary) !important;
  border-color: rgba(30, 30, 30, 0.28);
}

.btn-ghost:hover {
  background-color: var(--color-bg-tertiary);
  border-color: var(--color-border-light);
  color: var(--color-text-secondary) !important;
  text-decoration: none;
}

.btn-ghost:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.btn-ghost:disabled:hover {
  background-color: transparent;
  border-color: var(--color-border);
  color: var(--color-text-secondary);
}

.btn-icon {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 0;
  background-color: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  line-height: 1;
  transition: background-color var(--transition-fast), border-color var(--transition-fast),              color var(--transition-fast);
  outline: none;
  flex-shrink: 0;
}

.btn-icon:hover {
  background-color: var(--color-bg-tertiary);
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
}

.btn-icon:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

/* ---------------------------------------------------------------------------
   3. Stat Cards
   --------------------------------------------------------------------------- */
.stat-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

@media (max-width: 900px) {
  .stat-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 540px) {
  .stat-cards {
    grid-template-columns: 1fr;
  }
}

.stat-card {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition-base), transform var(--transition-base);
}

.stat-card:hover {
  border-color: rgba(30, 30, 30, 0.2);
  transform: translateY(-1px);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: currentColor;
  opacity: 0.6;
}

.stat-card-label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.stat-card-value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  line-height: 1;
  color: currentColor;
}

.stat-card-sub {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.stat-card-total {
  color: var(--color-accent-ink);
}

.stat-card-active {
  color: var(--color-success-ink);
}

.stat-card-inactive {
  color: var(--color-warning-ink);
}

.stat-card-alerts {
  color: var(--color-danger-ink);
}

/* ---------------------------------------------------------------------------
   4. Alert Pills
   --------------------------------------------------------------------------- */
.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 3px 10px;
  border-radius: 0;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  line-height: 1.4;
  white-space: nowrap;
  border: 1px solid transparent;
  text-decoration: none;
}

.pill:hover {
  text-decoration: none;
  filter: brightness(1.1);
}

.pill-green  {
  background-color: var(--color-success-bg);
  color: var(--color-success-ink);
  border-color: var(--color-success-border);
}

.pill-amber  {
  background-color: var(--color-warning-bg);
  color: var(--color-warning-ink);
  border-color: var(--color-warning-border);
}

.pill-red    {
  background-color: var(--color-danger-bg);
  color: var(--color-danger-ink);
  border-color: var(--color-danger-border);
}

.pill-grey   {
  background-color: var(--color-neutral-bg);
  color: var(--color-neutral-ink);
  border-color: var(--color-neutral-border);
}

.pill-crit   {
  background-color: var(--color-critical-bg);
  color: var(--color-critical-ink);
  border-color: var(--color-critical-border);
}

.pill-blue   {
  background-color: var(--color-info-bg);
  color: var(--color-info-ink);
  border-color: var(--color-info-border);
}

.pill-gray   {
  background-color: var(--color-neutral-bg);
  color: var(--color-neutral-ink);
  border-color: var(--color-neutral-border);
}

.pill-muted  {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
  border-color: var(--color-border);
}

a.pill {
  cursor: pointer;
  transition: filter var(--transition-fast), opacity var(--transition-fast);
}

a.pill:hover {
  opacity: 0.85;
  filter: brightness(1.15);
}

/* ---------------------------------------------------------------------------
   5. Filter Bar
   --------------------------------------------------------------------------- */
.filter-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-6);
}

.filter-bar-label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.filter-select {
  height: 34px;
  padding: 0 var(--space-3);
  background-color: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition-fast);
}

.filter-select:focus {
  border-color: var(--color-accent);
}

.filter-bar-spacer {
  margin-left: auto;
}

.filter-bar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Result counter badge */
.filter-count {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-left: var(--space-2);
}

/* ---------------------------------------------------------------------------
   6. Customer Sections
   --------------------------------------------------------------------------- */
.customers-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.customer-section {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: opacity var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.customer-section.is-hidden {
  display: none;
}

.customer-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-bg-tertiary);
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  user-select: none;
}

.customer-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  flex-shrink: 0;
  transition: color var(--transition-fast), transform var(--transition-base);
  outline: none;
  padding: 0;
}

.customer-toggle-btn:hover {
  color: var(--color-accent-ink);
}

.customer-toggle-icon {
  display: inline-block;
  transition: transform var(--transition-slow);
  font-style: normal;
  font-size: 0.6rem;
}

.customer-section.is-collapsed .customer-toggle-icon {
  transform: rotate(-90deg);
}

.customer-name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent-ink);
  flex: 1;
}

.customer-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: var(--space-2);
}

.customer-badge {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
}

.customer-badge-alert {
  color: var(--color-danger-ink);
  font-weight: var(--font-weight-semibold);
}

.customer-controls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-left: var(--space-2);
}

/* Customer content / collapse */
.customer-content {
  overflow: hidden;
  transition: max-height var(--transition-slow) ease,
              opacity var(--transition-base) ease;
  max-height: 99999px;
  opacity: 1;
}

.customer-section.is-collapsed .customer-content {
  max-height: 0;
  opacity: 0;
}

/* ---------------------------------------------------------------------------
   7. Device Rows
   --------------------------------------------------------------------------- */
.device-list {
  display: flex;
  flex-direction: column;
}

.device-row {
  display: grid;
  grid-template-columns: 28px 1fr auto auto;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-5);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-fast);
}

.device-row:last-child {
  border-bottom: none;
}

.device-row:hover {
  background-color: rgba(30, 30, 30, 0.04);
}

body.dark .device-row:hover {
  background-color: rgba(255, 255, 255, 0.04);
}

.device-row.is-hidden {
  display: none;
}

.device-row.is-stale {
  background-color: rgba(239, 68, 68, 0.06);
}

.device-row.is-stale:hover {
  background-color: rgba(239, 68, 68, 0.1);
}

/* Status indicator dot */
.device-status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-inline: auto;
  box-shadow: 0 0 6px currentColor;
}

.device-status-dot.dot-critical { color: var(--color-critical); background-color: var(--color-critical); }
.device-status-dot.dot-danger   { color: var(--color-danger);   background-color: var(--color-danger); }
.device-status-dot.dot-warning  { color: var(--color-warning);  background-color: var(--color-warning); }
.device-status-dot.dot-info     { color: var(--color-info);     background-color: var(--color-info); }
.device-status-dot.dot-neutral  { color: var(--color-neutral);  background-color: var(--color-neutral); }

/* Device identity */
.device-identity {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.device-hostname {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.device-hostname:hover {
  color: var(--color-accent-ink);
  text-decoration: none;
}

.device-meta-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.device-username {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.device-serial {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
}

.device-email-link {
  font-size: var(--font-size-xs);
  color: var(--color-text-link);
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}

.device-email-link:hover {
  text-decoration: underline;
}

/* Device alerts */
.device-alerts {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-1);
  justify-content: flex-end;
}

/* Device last seen */
.device-lastseen {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
  text-align: right;
  min-width: 90px;
}

.device-lastseen.is-stale {
  color: var(--color-danger-ink);
}

/* ---------------------------------------------------------------------------
   8. Email Dropdown (customer-level)
   --------------------------------------------------------------------------- */
.email-dropdown {
  position: relative;
  display: inline-flex;
}

.email-dropdown-panel {
  display: none;
  position: absolute;
  top: calc(100% + var(--space-1));
  right: 0;
  min-width: 280px;
  max-width: 400px;
  max-height: 360px;
  overflow-y: auto;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 300;
}

.email-dropdown.is-open .email-dropdown-panel {
  display: block;
}

.email-dropdown-header {
  padding: var(--space-2) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  background-color: var(--color-bg-tertiary);
}

.email-dropdown-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-2) var(--space-4);
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

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

.email-dropdown-item:hover {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  text-decoration: none;
}

.email-dropdown-user {
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.email-dropdown-alert {
  color: var(--color-text-muted);
}

.email-dropdown-empty {
  padding: var(--space-4);
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
}

/* ---------------------------------------------------------------------------
   9. Section Headers (for system status / PM2)
   --------------------------------------------------------------------------- */
.section-title {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.section-title h2 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent-ink);
}

/* ---------------------------------------------------------------------------
   10. Data Tables (System Status, PM2)
   --------------------------------------------------------------------------- */
.data-table-wrapper {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-8);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  background-color: var(--color-bg-tertiary);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.data-table td {
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

.data-table tbody tr {
  transition: background-color var(--transition-fast);
}

.data-table tbody tr:hover td {
  background-color: rgba(30, 30, 30, 0.04);
}

body.dark .data-table tbody tr:hover td {
  background-color: rgba(255, 255, 255, 0.03);
}

.data-table .cell-name {
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.data-table .cell-mono {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.data-table .cell-timestamp {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
}

.data-table .cell-email {
  font-size: var(--font-size-xs);
  color: var(--color-text-link);
  white-space: nowrap;
}

.data-table .cell-email a {
  color: var(--color-text-link);
}

/* ---------------------------------------------------------------------------
   11. Toast Notifications
   --------------------------------------------------------------------------- */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  z-index: 9999;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  max-width: 360px;
  pointer-events: all;
  animation: toast-in var(--transition-slow) ease forwards;
}

.toast.toast-exit {
  animation: toast-out var(--transition-slow) ease forwards;
}

.toast-success { border-left: 3px solid var(--color-success); }
.toast-warning { border-left: 3px solid var(--color-warning); }
.toast-error   { border-left: 3px solid var(--color-danger); }
.toast-info    { border-left: 3px solid var(--color-accent); }

@keyframes toast-in {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes toast-out {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(20px); }
}

/* ---------------------------------------------------------------------------
   12. Empty State
   --------------------------------------------------------------------------- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-16) var(--space-8);
  text-align: center;
  color: var(--color-text-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
  opacity: 0.5;
}

.empty-state-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}

.empty-state-sub {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ---------------------------------------------------------------------------
   13. Flash Messages
   --------------------------------------------------------------------------- */
.flash-message {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  font-size: var(--font-size-sm);
  background-color: var(--color-info-bg);
  color: var(--color-info-ink);
  border: 1px solid var(--color-info-border);
}

.flash-error {
  background-color: var(--color-danger-bg);
  color: var(--color-danger-ink);
  border-color: var(--color-danger-border);
}

.flash-success {
  background-color: var(--color-success-bg);
  color: var(--color-success-ink);
  border-color: var(--color-success-border);
}

.flash-unknown {
  background-color: var(--color-neutral-bg);
  color: var(--color-neutral-ink);
  border-color: var(--color-neutral-border);
}