/* =============================================================================
   Banqloop Fleet Dashboard — Dark-mode-first CSS
   ============================================================================= */

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

:root {
  /* Brand colours */
  --brand-primary: #3b82f6;
  --brand-secondary: #1d4ed8;

  /* Surface palette */
  --bg-base: #0f1117;
  --bg-surface: #161b27;
  --bg-card: #1e2536;
  --bg-hover: #252d40;
  --bg-border: #2a3347;

  /* Text */
  --text-primary: #e8eaf0;
  --text-secondary: #8a93a8;
  --text-muted: #566075;
  --text-link: #60a5fa;

  /* Status colours */
  --status-active: #22c55e;
  --status-active-bg: rgba(34, 197, 94, 0.12);
  --status-provisioning: #f59e0b;
  --status-provisioning-bg: rgba(245, 158, 11, 0.12);
  --status-error: #ef4444;
  --status-error-bg: rgba(239, 68, 68, 0.12);
  --status-offline: #6b7280;
  --status-offline-bg: rgba(107, 114, 128, 0.12);
  --status-updating: #8b5cf6;
  --status-updating-bg: rgba(139, 92, 246, 0.12);
  --status-registered: #06b6d4;
  --status-registered-bg: rgba(6, 182, 212, 0.12);

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;

  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  /* Font */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;

  /* Transitions */
  --t-fast: 120ms ease;
  --t-base: 200ms ease;
}

/* ── Base ───────────────────────────────────────────────────────────────────── */
html {
  color-scheme: dark;
}
body {
  font-family: var(--font-sans);
  background: var(--bg-base);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

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

button {
  font-family: var(--font-sans);
  cursor: pointer;
  border: none;
  outline: none;
}

/* ── Typography ─────────────────────────────────────────────────────────────── */
h1 {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
}
h2 {
  font-size: 1.125rem;
  font-weight: 600;
}
h3 {
  font-size: 0.875rem;
  font-weight: 600;
}
.text-sm {
  font-size: 0.8125rem;
}
.text-xs {
  font-size: 0.75rem;
}
.text-mono {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}
.text-muted {
  color: var(--text-secondary);
}

/* ── Layout ─────────────────────────────────────────────────────────────────── */
#app {
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 100vh;
}

/* ── Top Bar ────────────────────────────────────────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-6);
  height: 56px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--bg-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.topbar-logo {
  width: 32px;
  height: 32px;
  background: var(--brand-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.875rem;
  color: #fff;
  flex-shrink: 0;
}

.topbar-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
}

.topbar-subtitle {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-left: var(--space-2);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* Refresh indicator */
.refresh-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-secondary);
  font-size: 0.75rem;
}

.refresh-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--status-active);
  flex-shrink: 0;
}

.refresh-dot.refreshing {
  background: var(--status-provisioning);
  animation: pulse 1s infinite;
}

.refresh-dot.error {
  background: var(--status-error);
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.3;
  }
}

/* Refresh button */
.btn-refresh {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--bg-card);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.8125rem;
  transition:
    background var(--t-fast),
    color var(--t-fast);
}

.btn-refresh:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.btn-refresh svg {
  transition: transform 0.5s ease;
}
.btn-refresh.spinning svg {
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* API key input */
.api-key-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.api-key-wrap label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.api-key-input {
  background: var(--bg-card);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 8px;
  width: 180px;
  transition: border-color var(--t-fast);
}

.api-key-input:focus {
  outline: none;
  border-color: var(--brand-primary);
}

/* ── Main Layout ────────────────────────────────────────────────────────────── */
.main-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  padding: var(--space-6);
  max-width: 1600px;
  margin: 0 auto;
  width: 100%;
}

@media (min-width: 1100px) {
  .main-layout {
    grid-template-columns: 1fr 360px;
    grid-template-rows: auto 1fr;
    grid-template-areas:
      'stats   stats'
      'devices detail';
  }
}

/* ── Stats Row ──────────────────────────────────────────────────────────────── */
.stats-row {
  grid-area: stats;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-4);
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: border-color var(--t-base);
}

.stat-card:hover {
  border-color: #3a4561;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.stat-sub {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* ── Device Grid ────────────────────────────────────────────────────────────── */
.devices-panel {
  grid-area: devices;
  background: var(--bg-surface);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--bg-border);
  background: var(--bg-card);
}

.panel-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Filter pills */
.filter-group {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.filter-pill {
  padding: 3px 10px;
  border-radius: 99px;
  border: 1px solid var(--bg-border);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all var(--t-fast);
}

.filter-pill:hover {
  color: var(--text-primary);
  border-color: #3a4561;
}
.filter-pill.active {
  background: var(--brand-primary);
  border-color: var(--brand-primary);
  color: #fff;
}

/* Search */
.search-input {
  background: var(--bg-base);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  padding: 5px 10px;
  width: 200px;
  transition:
    border-color var(--t-fast),
    width var(--t-base);
}

.search-input:focus {
  outline: none;
  border-color: var(--brand-primary);
  width: 240px;
}
.search-input::placeholder {
  color: var(--text-muted);
}

/* Device list */
.device-list-scroll {
  overflow-y: auto;
  flex: 1;
}

.device-list-scroll::-webkit-scrollbar {
  width: 6px;
}
.device-list-scroll::-webkit-scrollbar-track {
  background: transparent;
}
.device-list-scroll::-webkit-scrollbar-thumb {
  background: var(--bg-border);
  border-radius: 3px;
}

.device-list-header {
  display: grid;
  grid-template-columns: 24px 1fr 100px 120px 110px 90px;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-5);
  background: var(--bg-base);
  border-bottom: 1px solid var(--bg-border);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.device-row {
  display: grid;
  grid-template-columns: 24px 1fr 100px 120px 110px 90px;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  border-bottom: 1px solid var(--bg-border);
  cursor: pointer;
  transition: background var(--t-fast);
  align-items: center;
}

.device-row:last-child {
  border-bottom: none;
}
.device-row:hover {
  background: var(--bg-hover);
}
.device-row.selected {
  background: rgba(59, 130, 246, 0.08);
  border-left: 3px solid var(--brand-primary);
  padding-left: calc(var(--space-5) - 3px);
}

.device-hostname {
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.device-id {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.device-version {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.device-checkin {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

/* Status badge */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
}

.status-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

.status-active {
  color: var(--status-active);
  background: var(--status-active-bg);
}
.status-provisioning {
  color: var(--status-provisioning);
  background: var(--status-provisioning-bg);
}
.status-downloading {
  color: var(--status-provisioning);
  background: var(--status-provisioning-bg);
}
.status-extracting {
  color: var(--status-provisioning);
  background: var(--status-provisioning-bg);
}
.status-validating {
  color: var(--status-provisioning);
  background: var(--status-provisioning-bg);
}
.status-registered {
  color: var(--status-registered);
  background: var(--status-registered-bg);
}
.status-failed {
  color: var(--status-error);
  background: var(--status-error-bg);
}
.status-offline {
  color: var(--status-offline);
  background: var(--status-offline-bg);
}
.status-update_available {
  color: var(--status-updating);
  background: var(--status-updating-bg);
}
.status-updating {
  color: var(--status-updating);
  background: var(--status-updating-bg);
}

/* Provisioning animation */
.status-provisioning::before,
.status-downloading::before,
.status-extracting::before,
.status-validating::before,
.status-updating::before {
  animation: pulse 1.4s infinite;
}

/* Empty / loading / error states */
.list-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-10);
  color: var(--text-secondary);
  text-align: center;
}

.list-state svg {
  opacity: 0.3;
}
.list-state h3 {
  color: var(--text-secondary);
}
.list-state p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  max-width: 320px;
}

/* Spinner */
.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--bg-border);
  border-top-color: var(--brand-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

/* ── Detail Panel ────────────────────────────────────────────────────────────── */
.detail-panel {
  grid-area: detail;
  background: var(--bg-surface);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 72px;
  max-height: calc(100vh - 96px);
}

.detail-placeholder {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  color: var(--text-muted);
  text-align: center;
  padding: var(--space-8);
}

.detail-placeholder svg {
  opacity: 0.15;
}

.detail-scroll {
  overflow-y: auto;
  flex: 1;
  padding: var(--space-5);
}

.detail-scroll::-webkit-scrollbar {
  width: 6px;
}
.detail-scroll::-webkit-scrollbar-track {
  background: transparent;
}
.detail-scroll::-webkit-scrollbar-thumb {
  background: var(--bg-border);
  border-radius: 3px;
}

/* Detail header */
.detail-device-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-5);
}

.detail-device-name {
  font-size: 1.125rem;
  font-weight: 700;
}
.detail-device-id {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.btn-close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-hover);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition:
    background var(--t-fast),
    color var(--t-fast);
}

.btn-close:hover {
  background: var(--bg-border);
  color: var(--text-primary);
}

/* Detail field grid */
.detail-section {
  margin-bottom: var(--space-5);
}

.detail-section-title {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--bg-border);
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.detail-field {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.detail-field.full {
  grid-column: 1 / -1;
}
.detail-field-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 500;
}
.detail-field-value {
  font-size: 0.8125rem;
  color: var(--text-primary);
  word-break: break-all;
}
.detail-field-value.mono {
  font-family: var(--font-mono);
}

/* Provision history timeline */
.provision-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.timeline-item {
  display: flex;
  gap: var(--space-3);
  position: relative;
  padding-bottom: var(--space-3);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 16px;
  bottom: 0;
  width: 1px;
  background: var(--bg-border);
}

.timeline-item:last-child::before {
  display: none;
}

.timeline-dot {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 3px;
  border: 2px solid var(--bg-base);
  position: relative;
  z-index: 1;
}

.timeline-dot.pass {
  background: var(--status-active);
}
.timeline-dot.fail {
  background: var(--status-error);
}
.timeline-dot.running {
  background: var(--status-provisioning);
  animation: pulse 1.4s infinite;
}

.timeline-content {
  flex: 1;
}
.timeline-stage {
  font-size: 0.8125rem;
  font-weight: 500;
}
.timeline-msg {
  font-size: 0.75rem;
  color: var(--text-secondary);
}
.timeline-time {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* GPS map placeholder */
.gps-field {
  background: var(--bg-base);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.gps-icon {
  color: var(--brand-primary);
}

/* Version distribution bar */
.version-bar-wrap {
  margin-top: var(--space-2);
}

.version-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.version-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  width: 60px;
  flex-shrink: 0;
}

.version-bar-track {
  flex: 1;
  height: 8px;
  background: var(--bg-border);
  border-radius: 99px;
  overflow: hidden;
}

.version-bar-fill {
  height: 100%;
  border-radius: 99px;
  background: var(--brand-primary);
  transition: width 0.5s ease;
}

.version-bar-fill.outdated {
  background: var(--status-provisioning);
}

.version-count {
  font-size: 0.75rem;
  color: var(--text-secondary);
  width: 28px;
  text-align: right;
  flex-shrink: 0;
}

/* ── Version Management Banner ─────────────────────────────────────────────── */
.version-banner {
  background: var(--bg-card);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.version-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.version-tag {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--brand-primary);
}

/* ── Toast notification ─────────────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: var(--space-5);
  right: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  z-index: 9999;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: 0.8125rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  animation: slideIn 0.2s ease;
  max-width: 360px;
}

.toast.success {
  border-left: 3px solid var(--status-active);
}
.toast.error {
  border-left: 3px solid var(--status-error);
}
.toast.info {
  border-left: 3px solid var(--brand-primary);
}

@keyframes slideIn {
  from {
    transform: translateX(16px);
    opacity: 0;
  }
  to {
    transform: none;
    opacity: 1;
  }
}

/* ── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 1099px) {
  .main-layout {
    grid-template-columns: 1fr;
  }
  .detail-panel {
    position: static;
    max-height: none;
    display: none;
  }
  .detail-panel.visible {
    display: flex;
  }

  .device-list-header,
  .device-row {
    grid-template-columns: 24px 1fr 90px 90px;
  }

  .col-version,
  .col-checkin {
    display: none;
  }
}

@media (max-width: 700px) {
  .topbar {
    padding: 0 var(--space-4);
  }
  .topbar-subtitle {
    display: none;
  }
  .api-key-wrap {
    display: none;
  }
  .main-layout {
    padding: var(--space-4);
  }
  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .search-input {
    width: 130px;
  }
  .search-input:focus {
    width: 160px;
  }

  .device-list-header,
  .device-row {
    grid-template-columns: 24px 1fr 80px;
  }

  .col-group,
  .col-version,
  .col-checkin {
    display: none;
  }
}

/* ── Scrollbar global ────────────────────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-base);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-border);
  border-radius: 4px;
}

/* ── Utility ─────────────────────────────────────────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.flex {
  display: flex;
}
.flex-col {
  flex-direction: column;
}
.items-center {
  align-items: center;
}
.gap-2 {
  gap: var(--space-2);
}
.gap-3 {
  gap: var(--space-3);
}
.mt-1 {
  margin-top: var(--space-1);
}
.mt-2 {
  margin-top: var(--space-2);
}
.mt-3 {
  margin-top: var(--space-3);
}