/* ============================================================
   AeroForge MES — Design System
   Tesla-inspired palette: ascetic white, carbon dark, single blue
   ============================================================ */

/* ---- CSS Custom Properties (Tokens) ----------------------------- */
:root {
  /* Tesla palette — the only 6 color literals allowed */
  --bg:       #ffffff;
  --fg:       #171a20;
  --accent:   #3e6ae1;
  --surface:  #f6f6f6;
  --muted:    #eeeeee;
  --border:   #dfdfe0;

  /* Derived tokens — built from the 6 palette atoms, no new hex */
  --fg-muted:       #171a20;          /* with opacity in usage */
  --accent-subtle:  #f6f6f6;          /* surface-like accent bg */
  --danger-bg:      #f6f6f6;          /* surface bg for alert rows */
  --success-bg:     #f6f6f6;          /* surface bg for ok rows */
  --warn-bg:        #eeeeee;          /* muted bg for warn rows */

  /* Typography */
  --font-display: Inter, system-ui, -apple-system, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-body:    Inter, system-ui, -apple-system, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-mono:    ui-monospace, SFMono-Regular, Menlo, 'Cascadia Code', monospace;

  /* Type scale (1.2 ratio) */
  --text-caption: 0.75rem;   /* 12px */
  --text-small:   0.8125rem; /* 13px */
  --text-body:    0.9375rem; /* 15px */
  --text-h3:      1.125rem;  /* 18px */
  --text-h2:      1.35rem;   /* 21.6px */
  --text-h1:      1.62rem;   /* 25.9px */
  --text-display: 1.944rem;  /* 31.1px */

  /* Spacing (8px baseline) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 40px;
  --space-8: 48px;
  --space-9: 64px;
  --space-10: 80px;

  /* Layout */
  --radius: 8px;
  --border-weight: 1px;
  --sidebar-w: 240px;
  --header-h: 56px;
  --statusbar-h: 32px;
  --transition: 180ms ease;
  --transition-out: 120ms ease;      /* dismiss/hide interactions — faster */
  --easing-standard: cubic-bezier(0.16, 1, 0.3, 1);  /* page-entry deceleration curve */
}

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

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--fg); text-decoration: underline; text-underline-offset: 2px; text-decoration-color: var(--border); }
a:hover { text-decoration-color: var(--accent); }

img, svg { display: block; max-width: 100%; }

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

/* ---- Sidebar ----------------------------------------------------- */
.app-sidebar {
  grid-area: sidebar;
  background: var(--fg);
  color: #ffffff;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-right: var(--border-weight) solid var(--border);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  height: var(--header-h);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
}

.sidebar-brand .brand-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius);
  background: var(--accent);
  display: grid;
  place-items: center;
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
  flex-shrink: 0;
}

.sidebar-brand .brand-text {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.2;
  white-space: nowrap;
}

.sidebar-brand .brand-sub {
  font-size: var(--text-caption);
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-2) 0;
}

.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 4px; }

.nav-section {
  margin-bottom: var(--space-1);
}

.nav-section-label {
  padding: var(--space-2) var(--space-5) var(--space-1);
  font-size: var(--text-caption);
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-5);
  color: rgba(255,255,255,0.65);
  font-size: var(--text-small);
  letter-spacing: 0.01em;
  line-height: 1.4;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  border-left: 2px solid transparent;
  text-decoration: none;
  user-select: none;
}

.nav-item:hover {
  background: rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.85);
  text-decoration: none;
}

.nav-item.active {
  background: rgba(62,106,225,0.15);
  color: #ffffff;
  border-left-color: var(--accent);
}

.nav-item .nav-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  opacity: 0.55;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.nav-item .nav-icon svg {
  width: 16px;
  height: 16px;
  display: block;
}
.nav-item.active .nav-icon, .nav-item:hover .nav-icon { opacity: 1; }

.nav-item .nav-badge {
  margin-left: auto;
  background: var(--accent);
  color: #fff;
  font-size: 0.625rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 999px;
  letter-spacing: 0.04em;
  line-height: 1.5;
}

/* ---- Header ------------------------------------------------------- */
.app-header {
  grid-area: header;
  background: var(--bg);
  border-bottom: var(--border-weight) solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 var(--space-5);
  gap: var(--space-5);
  z-index: 10;
  box-shadow: 0 1px 3px rgba(23,26,32,0.04);
}

.header-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-small);
  color: #171a20;
  opacity: 0.55;
  letter-spacing: 0.01em;
}

.header-breadcrumb .bc-sep {
  opacity: 0.35;
}

.header-breadcrumb .bc-current {
  opacity: 0.9;
  font-weight: 600;
}

.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header-actions .user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--surface);
  border: var(--border-weight) solid var(--border);
  display: grid;
  place-items: center;
  font-size: var(--text-small);
  font-weight: 600;
  color: var(--fg);
  cursor: pointer;
  transition: border-color var(--transition);
}

.header-actions .user-avatar:hover {
  border-color: var(--accent);
}

/* ---- Main Content ------------------------------------------------- */
.app-main {
  grid-area: main;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--surface);
  padding: var(--space-5);
}

.app-main::-webkit-scrollbar { width: 6px; }
.app-main::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ---- Status Bar --------------------------------------------------- */
.app-statusbar {
  grid-area: statusbar;
  background: var(--fg);
  color: rgba(255,255,255,0.65);
  display: flex;
  align-items: center;
  padding: 0 var(--space-5);
  gap: var(--space-5);
  font-size: var(--text-caption);
  letter-spacing: 0.02em;
  font-family: var(--font-mono);
}

.statusbar-item { display: flex; align-items: center; gap: var(--space-2); }
.statusbar-item .dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.statusbar-item .dot.ok { background: rgba(255,255,255,0.5); }
.statusbar-item .dot.warn { background: var(--accent); }
.statusbar-sep { color: rgba(255,255,255,0.2); }

/* ---- Typography --------------------------------------------------- */
.page-title {
  font-family: var(--font-display);
  font-size: var(--text-h1);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin-bottom: var(--space-3);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-h2);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin-bottom: var(--space-3);
}

.card-title {
  font-size: var(--text-body);
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.3;
}

.text-muted {
  color: #171a20;
  opacity: 0.5;
}

.text-accent {
  color: var(--accent);
}

/* ---- Components: Cards -------------------------------------------- */
.card {
  background: var(--bg);
  border: var(--border-weight) solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-5);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: var(--border-weight) solid var(--border);
}

.card-header .card-title {
  margin-bottom: 0;
}

/* ---- Components: KPI Card ----------------------------------------- */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.kpi-card {
  background: var(--bg);
  border: var(--border-weight) solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-4) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.kpi-card .kpi-label {
  font-size: var(--text-caption);
  color: #171a20;
  opacity: 0.55;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
}

.kpi-card .kpi-value {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.kpi-card .kpi-change {
  font-size: var(--text-caption);
  letter-spacing: 0.01em;
}

.kpi-card .kpi-change.up { color: var(--accent); }
.kpi-card .kpi-change.down { color: #171a20; opacity: 0.5; }

.kpi-card.accent-border .kpi-value { color: var(--accent); }

/* ---- Components: Status Badge ------------------------------------ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 1px 10px;
  border-radius: 999px;
  font-size: var(--text-caption);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.8;
  white-space: nowrap;
}

.badge .badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.badge-status-ok     { background: var(--surface); color: var(--fg); }
.badge-status-ok .badge-dot { background: var(--accent); }

.badge-status-warn   { background: var(--muted); color: var(--fg); }
.badge-status-warn .badge-dot { background: var(--accent); opacity: 0.7; }

.badge-status-error  { background: var(--fg); color: #ffffff; }
.badge-status-error .badge-dot { background: var(--accent); animation: pulse 2.4s ease-in-out infinite; }

.badge-status-info   { background: var(--bg); color: var(--accent); border: 1px solid var(--accent); }
.badge-status-info .badge-dot { background: var(--accent); }

.badge-status-draft  { background: var(--muted); color: #171a20; opacity: 0.6; }

/* ---- Components: 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);
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.4;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), opacity var(--transition), box-shadow var(--transition);
  border: var(--border-weight) solid transparent;
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
}

.btn:hover { text-decoration: none; }

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}
.btn-primary:hover { opacity: 0.9; }

.btn-secondary {
  background: var(--bg);
  color: var(--fg);
  border-color: var(--border);
}
.btn-secondary:hover { background: var(--surface); border-color: #171a20; opacity: 0.3; }

.btn-ghost {
  background: transparent;
  color: var(--fg);
  border-color: transparent;
}
.btn-ghost:hover { background: var(--surface); }

.btn-danger {
  background: var(--bg);
  color: var(--accent);
  border-color: var(--accent);
}
.btn-danger:hover { background: var(--accent); color: #ffffff; }

.btn-sm { padding: var(--space-1) var(--space-3); font-size: var(--text-caption); }
.btn-lg { padding: var(--space-3) var(--space-6); font-size: var(--text-body); }

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* ---- Components: Data Table --------------------------------------- */
.data-table-wrap {
  overflow-x: auto;
  border: var(--border-weight) solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-small);
  letter-spacing: 0.01em;
}

.data-table thead {
  background: var(--surface);
  border-bottom: var(--border-weight) solid var(--border);
}

.data-table th {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-weight: 600;
  font-size: var(--text-caption);
  color: #171a20;
  opacity: 0.6;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
  user-select: none;
  cursor: pointer;
}

.data-table th:hover { opacity: 0.85; }

.data-table th.sort-asc::after,
.data-table th.sort-desc::after {
  content: '';
  display: inline-block;
  margin-left: var(--space-1);
  vertical-align: middle;
  opacity: 0.5;
}

.data-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: var(--border-weight) solid var(--muted);
  vertical-align: middle;
}

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

.data-table .cell-mono {
  font-family: var(--font-mono);
  font-size: var(--text-caption);
  letter-spacing: 0.02em;
}

.data-table .cell-actions {
  display: flex;
  gap: var(--space-2);
}

/* ---- Components: Form Controls ------------------------------------ */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.form-label {
  font-size: var(--text-caption);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #171a20;
  opacity: 0.6;
}

.form-input, .form-select, .form-textarea {
  padding: var(--space-2) var(--space-3);
  border: var(--border-weight) solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: var(--text-small);
  letter-spacing: 0.01em;
  background: var(--bg);
  color: var(--fg);
  transition: border-color var(--transition);
  outline: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(62,106,225,0.1);
}

.form-input::placeholder { color: #171a20; opacity: 0.35; }

.form-textarea { resize: vertical; min-height: 80px; }

.form-select { cursor: pointer; appearance: none; padding-right: 32px; }

.form-row {
  display: flex;
  gap: var(--space-4);
  align-items: flex-end;
}

.form-row .form-group { flex: 1; }

.search-bar {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  margin-bottom: var(--space-4);
}

.search-bar .form-input { min-width: 260px; }

/* ---- Components: Tabs --------------------------------------------- */
.tabs {
  display: flex;
  border-bottom: var(--border-weight) solid var(--border);
  margin-bottom: var(--space-5);
  gap: 0;
}

.tab-item {
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-small);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #171a20;
  opacity: 0.55;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition), opacity var(--transition);
  user-select: none;
  white-space: nowrap;
}

.tab-item:hover { opacity: 0.8; }
.tab-item.active {
  opacity: 1;
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ---- Components: Progress Bar ------------------------------------- */
.progress-bar {
  height: 6px;
  background: var(--muted);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar .progress-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--fg);
  opacity: 0.55;
  transition: width 400ms ease;
}

/* ---- Components: Empty State -------------------------------------- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-10) var(--space-5);
  text-align: center;
  gap: var(--space-3);
  color: #171a20;
  opacity: 0.45;
}

.empty-state .empty-icon {
  font-size: 2.5rem;
  line-height: 1;
  margin-bottom: var(--space-2);
}

/* ---- Components: Alert / Notification ----------------------------- */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius);
  font-size: var(--text-small);
  letter-spacing: 0.01em;
  line-height: 1.5;
  margin-bottom: var(--space-4);
}

.alert-info    { background: var(--surface); border: var(--border-weight) solid var(--border); }
.alert-warning { background: var(--muted); border: var(--border-weight) solid var(--border); }
.alert-error   { background: var(--accent); color: #ffffff; border: var(--border-weight) solid var(--accent); }

.alert .alert-icon { flex-shrink: 0; font-size: 1rem; line-height: 1.5; }

/* ---- Components: Modal / Dialog ---------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(23,26,32,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal {
  background: var(--bg);
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(23,26,32,0.2);
  max-width: 520px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: var(--border-weight) solid var(--border);
}

.modal-body { padding: var(--space-5); }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-top: var(--border-weight) solid var(--border);
}

/* ---- Components: Pagination --------------------------------------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-small);
  color: #171a20;
  opacity: 0.7;
}

.pagination .page-btns { display: flex; gap: var(--space-1); }

.pagination .page-btn {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  border: var(--border-weight) solid var(--border);
  background: var(--bg);
  font-size: var(--text-small);
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
  color: var(--fg);
}

.pagination .page-btn:hover { border-color: var(--accent); }
.pagination .page-btn.active {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

/* ---- Utilities ---------------------------------------------------- */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }

.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.mb-6 { margin-bottom: var(--space-6); }

.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }

.p-4 { padding: var(--space-4); }
.p-5 { padding: var(--space-5); }

.w-full { width: 100%; }

.truncate {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

/* ---- Chart / stat placeholder (not a real chart lib) ------------- */
.chart-placeholder {
  display: flex;
  align-items: flex-end;
  gap: var(--space-2);
  height: 160px;
  padding: var(--space-2) 0;
}

.chart-bar {
  flex: 1;
  background: var(--fg);
  border-radius: var(--radius) var(--radius) 0 0;
  min-width: 8px;
  opacity: 0.45;
  transform-origin: bottom;
  /* height set inline — animated via JS or CSS custom property.
     No transition on height: layout-triggering. Use scaleY for
     entry, or rely on JS rAF to set the final height instantly. */
}

.chart-bar:nth-child(odd) { opacity: 0.65; }

/* ---- Timeline / Steps -------------------------------------------- */
.timeline {
  display: flex;
  align-items: flex-start;
  gap: 0;
  padding: var(--space-4) 0;
}

.timeline-step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  position: relative;
  text-align: center;
  font-size: var(--text-caption);
  letter-spacing: 0.02em;
}

.timeline-step::before {
  content: '';
  position: absolute;
  top: 12px;
  left: calc(50% + 14px);
  width: calc(100% - 28px);
  height: 2px;
  background: var(--muted);
}

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

.timeline-step .step-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--muted);
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--fg);
  z-index: 1;
  flex-shrink: 0;
}

.timeline-step.done .step-dot { background: var(--accent); color: #ffffff; }
.timeline-step.active .step-dot { background: var(--accent); color: #ffffff; box-shadow: 0 0 0 4px rgba(62,106,225,0.15); }

.timeline-step .step-label {
  font-weight: 600;
  color: #171a20;
  opacity: 0.55;
}

.timeline-step.done .step-label,
.timeline-step.active .step-label { opacity: 1; }

/* ---- Equipment Status Grid ---------------------------------------- */
.status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-3);
}

.status-cell {
  background: var(--bg);
  border: var(--border-weight) solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: border-color var(--transition);
}

.status-cell:hover { border-color: var(--accent); }

.status-cell .sc-name {
  font-size: var(--text-small);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.status-cell .sc-code {
  font-family: var(--font-mono);
  font-size: var(--text-caption);
  color: #171a20;
  opacity: 0.5;
}

.status-cell .sc-status {
  margin-top: var(--space-1);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-caption);
  font-weight: 600;
}

.status-cell .sc-status .sc-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.sc-dot.running { background: var(--accent); }
.sc-dot.idle    { background: var(--muted); border: 1px solid var(--border); }
.sc-dot.alarm   { background: var(--accent); animation: pulse 2.4s ease-in-out infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.25; }
}

/* ---- Login Page (standalone) -------------------------------------- */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--fg);
  padding: var(--space-5);
}

.login-card {
  width: 400px;
  max-width: 100%;
  background: var(--bg);
  border-radius: var(--radius);
  padding: var(--space-8);
  box-shadow: 0 20px 60px rgba(23,26,32,0.3);
}

.login-card .login-brand {
  text-align: center;
  margin-bottom: var(--space-6);
}

.login-card .login-brand .brand-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: var(--accent);
  color: #ffffff;
  display: inline-grid;
  place-items: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.login-card .login-brand h1 {
  font-family: var(--font-display);
  font-size: var(--text-h2);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-1);
}

.login-card .login-brand p {
  font-size: var(--text-small);
  color: #171a20;
  opacity: 0.5;
  letter-spacing: 0.02em;
}

.login-card .form-group { margin-bottom: var(--space-4); }
.login-card .btn { width: 100%; }

.login-card .login-footer {
  text-align: center;
  margin-top: var(--space-5);
  font-size: var(--text-caption);
  color: #171a20;
  opacity: 0.45;
}

/* ---- Launcher Page ------------------------------------------------ */
.launcher-hero {
  text-align: center;
  padding: var(--space-9) var(--space-5) var(--space-7);
}

.launcher-hero .hero-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius);
  background: var(--fg);
  color: #ffffff;
  display: inline-grid;
  place-items: center;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.launcher-hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-h1);
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: var(--space-2);
}

.launcher-hero p {
  font-size: var(--text-body);
  opacity: 0.55;
  max-width: 480px;
  margin: 0 auto;
}

.launcher-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-4);
  padding: 0 var(--space-5) var(--space-8);
}

.launcher-card {
  background: var(--bg);
  border: var(--border-weight) solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-5);
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition);
  text-decoration: none;
  color: var(--fg);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.launcher-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 16px rgba(23,26,32,0.06);
  text-decoration: none;
}

.launcher-card .lc-module {
  font-size: var(--text-caption);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  color: var(--accent);
}

.launcher-card .lc-name {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.launcher-card .lc-desc {
  font-size: var(--text-small);
  color: #171a20;
  opacity: 0.5;
  line-height: 1.5;
}

.launcher-section {
  padding: 0 var(--space-5);
  margin-bottom: var(--space-4);
}

.launcher-section h2 {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-1);
}

/* ---- Global page-entry animation system ---------------------- */
/* Every page loads with a choreographed staggered reveal.
   Animates only transform + opacity. Zero layout props animated.
   Prefers-reduced-motion disables everything → instant static. */

/* Page title — fade down */
.page-title {
  animation: od-enter-down 350ms cubic-bezier(0.16, 1, 0.3, 1) both;
}
@keyframes od-enter-down {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* KPI cards — staggered fade-up */
.kpi-card {
  animation: od-enter-up 400ms cubic-bezier(0.16, 1, 0.3, 1) both;
}
.kpi-card:nth-child(1) { animation-delay: 30ms; }
.kpi-card:nth-child(2) { animation-delay: 80ms; }
.kpi-card:nth-child(3) { animation-delay: 130ms; }
.kpi-card:nth-child(4) { animation-delay: 180ms; }
.kpi-card:nth-child(5) { animation-delay: 230ms; }
.kpi-card:nth-child(6) { animation-delay: 280ms; }
@keyframes od-enter-up {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Content cards — staggered fade */
.card {
  animation: od-card-in 400ms cubic-bezier(0.16, 1, 0.3, 1) both;
}
.card:nth-child(1) { animation-delay: 50ms; }
.card:nth-child(2) { animation-delay: 100ms; }
.card:nth-child(3) { animation-delay: 150ms; }
.card:nth-child(4) { animation-delay: 200ms; }
.card:nth-child(5) { animation-delay: 250ms; }
@keyframes od-card-in {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Table rows — tight stagger, first 8 rows only. Rows 9+ appear instantly. */
.data-table tbody tr {
  animation: od-row-in 280ms cubic-bezier(0.16, 1, 0.3, 1) both;
}
.data-table tbody tr:nth-child(1)  { animation-delay: 120ms; }
.data-table tbody tr:nth-child(2)  { animation-delay: 150ms; }
.data-table tbody tr:nth-child(3)  { animation-delay: 180ms; }
.data-table tbody tr:nth-child(4)  { animation-delay: 210ms; }
.data-table tbody tr:nth-child(5)  { animation-delay: 240ms; }
.data-table tbody tr:nth-child(6)  { animation-delay: 270ms; }
.data-table tbody tr:nth-child(7)  { animation-delay: 300ms; }
.data-table tbody tr:nth-child(8)  { animation-delay: 330ms; }
@keyframes od-row-in {
  from { opacity: 0; transform: translateX(-6px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* SVG chart bars — grow from baseline */
.chart-rect {
  transform: scaleY(0);
  transform-origin: bottom;
  animation: od-chart-grow 500ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.chart-rect:nth-child(1)  { animation-delay: 50ms; }
.chart-rect:nth-child(2)  { animation-delay: 110ms; }
.chart-rect:nth-child(3)  { animation-delay: 170ms; }
.chart-rect:nth-child(4)  { animation-delay: 230ms; }
.chart-rect:nth-child(5)  { animation-delay: 290ms; }
.chart-rect:nth-child(6)  { animation-delay: 350ms; }
.chart-rect:nth-child(7)  { animation-delay: 410ms; }
.chart-rect:nth-child(8)  { animation-delay: 470ms; }
@keyframes od-chart-grow {
  to { transform: scaleY(1); }
}

/* Equipment status cells — staggered in */
.status-cell {
  animation: od-cell-in 300ms cubic-bezier(0.16, 1, 0.3, 1) both;
}
.status-cell:nth-child(1)  { animation-delay: 60ms; }
.status-cell:nth-child(2)  { animation-delay: 85ms; }
.status-cell:nth-child(3)  { animation-delay: 110ms; }
.status-cell:nth-child(4)  { animation-delay: 135ms; }
.status-cell:nth-child(5)  { animation-delay: 160ms; }
.status-cell:nth-child(6)  { animation-delay: 185ms; }
.status-cell:nth-child(7)  { animation-delay: 210ms; }
.status-cell:nth-child(8)  { animation-delay: 235ms; }
.status-cell:nth-child(9)  { animation-delay: 260ms; }
.status-cell:nth-child(10) { animation-delay: 285ms; }
.status-cell:nth-child(11) { animation-delay: 310ms; }
.status-cell:nth-child(12) { animation-delay: 335ms; }
@keyframes od-cell-in {
  from { opacity: 0; transform: scale(0.95); }
  to   { opacity: 1; transform: scale(1); }
}

/* ---- Reduced motion — strip everything ----------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0s !important;
    animation-delay: 0s !important;
    transition-duration: 0s !important;
    transition-delay: 0s !important;
  }
  /* Ensure entry animations don't leave elements invisible */
  .page-title,
  .kpi-card,
  .card,
  .data-table tbody tr,
  .chart-rect,
  .chart-bar,
  .status-cell {
    animation: none !important;
    transform: none !important;
    opacity: 1 !important;
  }
  .chart-rect { transform: scaleY(1) !important; }
}

/* ---- Print / dark-mode placeholders ------------------------------ */
@media print {
  .app-sidebar, .app-header, .app-statusbar { display: none !important; }
  .app-shell { display: block !important; }
  .app-main { overflow: visible !important; }
}