/* =============================================================================
   FieldState Playground — fieldstate_playground.css
   FildraAI Design System v2.3
   Accent: --fs-accent (#f59e0b amber) | Farm memory + attention identity
   Mobile-first. Touch targets ≥ 44px throughout.
   ============================================================================= */

/* ── CSS variables ────────────────────────────────────────────────────────── */
:root {
  /* FieldState identity colour — amber, representing the field at sunrise */
  --fs-accent:         #f59e0b;
  --fs-accent-dark:    #d97706;
  --fs-accent-glow:    rgba(245, 158, 11, 0.15);
  --fs-accent-border:  rgba(245, 158, 11, 0.35);

  /* Semantic colours (attention priority) */
  --fs-urgent:         #f87171;
  --fs-urgent-bg:      rgba(248, 113, 113, 0.08);
  --fs-urgent-border:  rgba(248, 113, 113, 0.4);
  --fs-watch:          #fbbf24;
  --fs-watch-bg:       rgba(251, 191, 36, 0.08);
  --fs-watch-border:   rgba(251, 191, 36, 0.4);
  --fs-good:           #34d399;
  --fs-good-bg:        rgba(52, 211, 153, 0.08);
  --fs-good-border:    rgba(52, 211, 153, 0.4);

  /* Action CTA — sky blue consistent with FildraAI system */
  --fs-cta:            #38bdf8;
  --fs-cta-bg:         rgba(56, 189, 248, 0.1);
  --fs-cta-border:     rgba(56, 189, 248, 0.35);

  /* Surfaces */
  --fs-surface:        rgba(10, 15, 26, 0.97);
  --fs-surface-raised: rgba(15, 22, 41, 0.88);
  --fs-surface-deep:   rgba(6, 9, 16, 0.95);

  /* Borders */
  --fs-border:         rgba(148, 163, 184, 0.13);
  --fs-border-mid:     rgba(148, 163, 184, 0.22);

  /* Text */
  --fs-text:           #e2e8f0;
  --fs-text-secondary: #94a3b8;
  --fs-text-muted:     #64748b;

  /* Layout */
  --fs-radius:         0.875rem;
  --fs-radius-sm:      0.5rem;
  --fs-radius-xs:      0.35rem;
  --fs-max-w:          720px;
  --fs-transition:     180ms ease;

  /* Icon background colours */
  --fs-icon-dx:        rgba(248, 113, 113, 0.14);
  --fs-icon-dx-text:   #f87171;
  --fs-icon-map:       rgba(56, 189, 248, 0.14);
  --fs-icon-map-text:  #38bdf8;
  --fs-icon-kb:        rgba(52, 211, 153, 0.14);
  --fs-icon-kb-text:   #34d399;
  --fs-icon-ctx:       rgba(245, 158, 11, 0.14);
  --fs-icon-ctx-text:  #f59e0b;
  --fs-icon-img:       rgba(148, 163, 184, 0.14);
  --fs-icon-img-text:  #94a3b8;
}

[data-theme="light"] {
  --fs-surface:        rgba(255, 255, 255, 0.96);
  --fs-surface-raised: rgba(248, 250, 252, 0.9);
  --fs-surface-deep:   rgba(241, 245, 249, 0.95);
  --fs-border:         rgba(0, 0, 0, 0.08);
  --fs-border-mid:     rgba(0, 0, 0, 0.14);
  --fs-text:           #0f172a;
  --fs-text-secondary: #475569;
  --fs-text-muted:     #94a3b8;
}

/* ── Atmosphere ───────────────────────────────────────────────────────────── */
.fs-atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 55% 45% at 8% 12%, rgba(245, 158, 11, 0.10) 0%, transparent 55%),
    radial-gradient(ellipse 45% 40% at 92% 85%, rgba(56, 189, 248, 0.08) 0%, transparent 55%);
  pointer-events: none;
}

/* ── Collapsible intro ────────────────────────────────────────────────────── */
.fs-tool-intro {
  max-height: 0;
  overflow: hidden;
  transition: max-height 420ms ease;
}

.fs-intro-inner {
  padding: 2rem 1.25rem 2.5rem;
  max-width: var(--fs-max-w);
  margin: 0 auto;
}

.fs-intro-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.28rem 0.9rem;
  border-radius: 99px;
  border: 1px solid var(--fs-accent-border);
  background: var(--fs-accent-glow);
  color: var(--fs-accent);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.1rem;
}

.fs-intro-title {
  font-family: 'DM Sans', sans-serif;
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  font-weight: 700;
  color: var(--fs-text);
  margin-bottom: 0.65rem;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.fs-intro-subtitle {
  color: var(--fs-text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 600px;
  margin-bottom: 1.75rem;
}

.fs-intro-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 0.9rem;
}

.fs-intro-card {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.05rem 1.1rem;
  border-radius: var(--fs-radius-sm);
  border: 1px solid var(--fs-border);
  background: var(--fs-surface-raised);
  color: var(--fs-text-secondary);
  font-size: 0.875rem;
  line-height: 1.55;
}

.fs-intro-card i {
  color: var(--fs-accent);
  font-size: 1.1rem;
}

.fs-intro-card strong {
  display: block;
  color: var(--fs-text);
  font-weight: 600;
  font-size: 0.9rem;
}

/* ── Page wrapper ─────────────────────────────────────────────────────────── */
.fs-page {
  max-width: var(--fs-max-w);
  margin: 1rem auto 3rem;
  padding: 0 1rem;
}

/* ── Context strip ────────────────────────────────────────────────────────── */
.fs-context {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--fs-surface-deep);
  border-bottom: 1px solid var(--fs-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  margin: 0 -1rem;
  padding: 0 1rem;
}

.fs-context-inner {
  max-width: var(--fs-max-w);
  margin: 0 auto;
  padding: 10px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.fs-context-field {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.fs-context-name {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--fs-text);
}

.fs-context-switch {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 99px;
  border: 1px solid var(--fs-border-mid);
  background: transparent;
  color: var(--fs-text-muted);
  font-size: 0.75rem;
  font-family: 'DM Sans', sans-serif;
  cursor: pointer;
  min-height: 28px;
  transition: all var(--fs-transition);
}

.fs-context-switch:hover {
  border-color: var(--fs-accent-border);
  color: var(--fs-accent);
  background: var(--fs-accent-glow);
}

.fs-context-pills {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.fs-cpill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--fs-text-secondary);
  padding: 3px 9px;
  border-radius: 99px;
  border: 1px solid var(--fs-border);
  background: var(--fs-surface-raised);
  letter-spacing: 0.01em;
}

.fs-cpill i {
  font-size: 0.65rem;
  opacity: 0.7;
}

.fs-cpill-crop {
  border-color: var(--fs-accent-border);
  color: var(--fs-accent);
  background: var(--fs-accent-glow);
}

.fs-cpill-crop i {
  opacity: 1;
}

/* ── Tab navigation ───────────────────────────────────────────────────────── */
.fs-tab-nav {
  display: flex;
  gap: 2px;
  padding: 4px;
  background: var(--fs-surface-raised);
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius-sm);
  margin: 1.1rem 0 1.25rem;
}

.fs-tab {
  flex: 1;
  padding: 9px 14px;
  border: none;
  background: transparent;
  border-radius: 7px;
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--fs-text-muted);
  transition: all var(--fs-transition);
  min-height: 40px;
  white-space: nowrap;
}

.fs-tab:hover:not(.fs-tab-active) {
  color: var(--fs-text-secondary);
  background: rgba(148, 163, 184, 0.07);
}

.fs-tab.fs-tab-active {
  background: var(--fs-surface);
  color: var(--fs-text);
  border: 1px solid var(--fs-border-mid);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
}

/* ── Tab panels ───────────────────────────────────────────────────────────── */
.fs-panel {
  animation: fs-fadein 200ms ease;
}

.fs-panel-hidden {
  display: none;
}

@keyframes fs-fadein {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Section titles ───────────────────────────────────────────────────────── */
.fs-section {
  margin-bottom: 1.35rem;
}

.fs-section-title {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fs-text-muted);
  margin-bottom: 0.75rem;
}

.fs-section-title i {
  color: var(--fs-accent);
  opacity: 0.75;
  font-size: 0.68rem;
}

/* ── Attention cards ──────────────────────────────────────────────────────── */
.fs-attn {
  padding: 0.95rem 1.1rem;
  margin-bottom: 8px;
  border-radius: 0;
  border: 1px solid var(--fs-border);
  border-left: 3px solid;
  background: var(--fs-surface-raised);
  transition: background var(--fs-transition);
}

.fs-attn-urgent {
  border-left-color: var(--fs-urgent);
  background: var(--fs-urgent-bg);
  border-color: var(--fs-urgent-border);
  border-left-color: var(--fs-urgent);
}

.fs-attn-watch {
  border-left-color: var(--fs-watch);
  background: var(--fs-watch-bg);
  border-color: var(--fs-watch-border);
  border-left-color: var(--fs-watch);
}

.fs-attn-good {
  border-left-color: var(--fs-good);
  background: var(--fs-good-bg);
  border-color: var(--fs-good-border);
  border-left-color: var(--fs-good);
}

.fs-attn-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 7px;
  flex-wrap: wrap;
}

.fs-attn-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 9px;
  border-radius: var(--fs-radius-xs);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.fs-attn-badge-urgent {
  background: rgba(248, 113, 113, 0.15);
  color: var(--fs-urgent);
  border: 1px solid rgba(248, 113, 113, 0.3);
}

.fs-attn-badge-watch {
  background: rgba(251, 191, 36, 0.12);
  color: var(--fs-watch);
  border: 1px solid rgba(251, 191, 36, 0.3);
}

.fs-attn-badge-good {
  background: rgba(52, 211, 153, 0.12);
  color: var(--fs-good);
  border: 1px solid rgba(52, 211, 153, 0.3);
}

.fs-attn-source {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--fs-text-muted);
  letter-spacing: 0.02em;
}

.fs-attn-title {
  font-size: 0.975rem;
  font-weight: 600;
  color: var(--fs-text);
  margin-bottom: 5px;
  line-height: 1.35;
}

.fs-attn-why {
  font-size: 0.84rem;
  color: var(--fs-text-secondary);
  line-height: 1.55;
  margin-bottom: 10px;
}

.fs-attn-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--fs-radius-xs);
  border: 1px solid var(--fs-cta-border);
  background: var(--fs-cta-bg);
  color: var(--fs-cta);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--fs-transition);
  min-height: 36px;
}

.fs-attn-btn:hover {
  background: rgba(56, 189, 248, 0.18);
  border-color: rgba(56, 189, 248, 0.55);
}

.fs-attn-btn i {
  font-size: 0.72rem;
}

/* ── State card ───────────────────────────────────────────────────────────── */
.fs-state-card,
.fs-report-card {
  background: var(--fs-surface-raised);
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius);
  overflow: hidden;
}

.fs-state-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 1.1rem;
  border-bottom: 1px solid var(--fs-border);
  font-size: 0.875rem;
}

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

.fs-state-label {
  color: var(--fs-text-secondary);
  flex-shrink: 0;
  min-width: 110px;
}

.fs-state-value {
  color: var(--fs-text);
  font-weight: 500;
  text-align: right;
  font-size: 0.875rem;
}

.fs-state-value code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  background: rgba(148, 163, 184, 0.1);
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--fs-accent);
}

.fs-state-value-danger {
  color: var(--fs-urgent);
}

.fs-state-value-warning {
  color: var(--fs-watch);
}

.fs-state-quote {
  font-style: italic;
  color: var(--fs-text-secondary);
  font-size: 0.84rem;
  max-width: 55%;
  text-align: right;
  line-height: 1.4;
}

/* ── Activity feed ────────────────────────────────────────────────────────── */
.fs-feed {
  background: var(--fs-surface-raised);
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius);
  overflow: hidden;
}

.fs-feed-item {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding: 13px 1.1rem;
  border-bottom: 1px solid var(--fs-border);
  transition: background var(--fs-transition);
}

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

.fs-feed-item:hover {
  background: rgba(148, 163, 184, 0.04);
}

.fs-feed-icon {
  width: 30px;
  height: 30px;
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.fs-feed-icon-dx  { background: var(--fs-icon-dx);  color: var(--fs-icon-dx-text);  }
.fs-feed-icon-map { background: var(--fs-icon-map); color: var(--fs-icon-map-text); }
.fs-feed-icon-kb  { background: var(--fs-icon-kb);  color: var(--fs-icon-kb-text);  }
.fs-feed-icon-ctx { background: var(--fs-icon-ctx); color: var(--fs-icon-ctx-text); }
.fs-feed-icon-img { background: var(--fs-icon-img); color: var(--fs-icon-img-text); }
.fs-feed-icon-vis { background: var(--fs-icon-dx);  color: var(--fs-icon-dx-text);  }

.fs-feed-body {
  flex: 1;
  min-width: 0;
}

.fs-feed-title {
  font-size: 0.875rem;
  color: var(--fs-text);
  margin-bottom: 3px;
  line-height: 1.4;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.fs-feed-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--fs-text-muted);
  letter-spacing: 0.02em;
}

.fs-feed-expand {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--fs-text-muted);
  font-size: 0.75rem;
  font-family: 'DM Sans', sans-serif;
  padding: 4px 0;
  margin-top: 4px;
  transition: color var(--fs-transition);
  min-height: 28px;
}

.fs-feed-expand:hover {
  color: var(--fs-accent);
}

.fs-feed-expand i {
  font-size: 0.65rem;
  transition: transform var(--fs-transition);
}

.fs-feed-expand[aria-expanded="true"] i {
  transform: rotate(180deg);
}

.fs-feed-detail {
  margin-top: 7px;
  padding: 9px 11px;
  border-radius: var(--fs-radius-xs);
  background: var(--fs-surface-deep);
  border: 1px solid var(--fs-border);
  font-size: 0.82rem;
  color: var(--fs-text-secondary);
  line-height: 1.6;
  animation: fs-fadein 150ms ease;
}

/* ── Footer actions ───────────────────────────────────────────────────────── */
.fs-actions {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-top: 0.5rem;
  margin-bottom: 1.5rem;
}

.fs-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px 18px;
  border-radius: var(--fs-radius-sm);
  border: 1px solid var(--fs-border-mid);
  background: transparent;
  color: var(--fs-text-secondary);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--fs-transition);
  min-height: 46px;
}

.fs-action-btn:hover {
  background: var(--fs-surface-raised);
  color: var(--fs-text);
  border-color: var(--fs-border-mid);
}

.fs-action-btn i {
  font-size: 0.8rem;
  opacity: 0.7;
}

.fs-action-primary {
  border-color: var(--fs-cta-border);
  color: var(--fs-cta);
  background: var(--fs-cta-bg);
}

.fs-action-primary:hover {
  background: rgba(56, 189, 248, 0.16);
  border-color: rgba(56, 189, 248, 0.5);
  color: var(--fs-cta);
}

.fs-action-primary i {
  opacity: 1;
}

/* ── History tab ──────────────────────────────────────────────────────────── */
.fs-filter-row {
  display: flex;
  gap: 6px;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.fs-filter-btn {
  display: inline-flex;
  align-items: center;
  padding: 6px 13px;
  border-radius: 99px;
  border: 1px solid var(--fs-border-mid);
  background: transparent;
  color: var(--fs-text-muted);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--fs-transition);
  min-height: 32px;
}

.fs-filter-btn:hover {
  border-color: var(--fs-accent-border);
  color: var(--fs-accent);
  background: var(--fs-accent-glow);
}

.fs-filter-btn.fs-filter-active {
  border-color: var(--fs-accent-border);
  color: var(--fs-accent);
  background: var(--fs-accent-glow);
}

.fs-timeline-day {
  margin-bottom: 1.1rem;
}

.fs-timeline-day-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--fs-text-muted);
  padding: 0 0 8px 0;
  margin-bottom: 0;
  border-bottom: 1px solid var(--fs-border);
  margin-bottom: 2px;
}

/* ── Report tab ───────────────────────────────────────────────────────────── */
.fs-report-header {
  margin-bottom: 1.1rem;
}

.fs-report-season {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--fs-accent);
  margin-bottom: 3px;
}

.fs-report-crop {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--fs-text);
}

.fs-metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 1.35rem;
}

.fs-metric {
  background: var(--fs-surface-raised);
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius-sm);
  padding: 12px 14px;
}

.fs-metric-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fs-text-muted);
  margin-bottom: 5px;
}

.fs-metric-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--fs-text);
  line-height: 1;
  font-family: 'DM Sans', sans-serif;
}

.fs-metric-danger { color: var(--fs-urgent); }
.fs-metric-success { color: var(--fs-good); }

/* ── Spray log ────────────────────────────────────────────────────────────── */
.fs-spray-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 1.1rem;
  border-bottom: 1px solid var(--fs-border);
  font-size: 0.875rem;
}

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

.fs-spray-date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--fs-text-muted);
  min-width: 52px;
  flex-shrink: 0;
}

.fs-spray-product {
  flex: 1;
  color: var(--fs-text);
  font-weight: 500;
}

.fs-spray-target {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--fs-text-muted);
  flex-shrink: 0;
}

.fs-spray-pending .fs-spray-product {
  color: var(--fs-watch);
}

.fs-spray-target-now {
  color: var(--fs-urgent);
}

/* ── Recommendation card ──────────────────────────────────────────────────── */
.fs-recommendation-card {
  background: var(--fs-surface-raised);
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius);
  padding: 1.05rem 1.1rem;
}

.fs-rec-text {
  font-size: 0.9rem;
  color: var(--fs-text);
  line-height: 1.65;
  margin-bottom: 8px;
}

.fs-rec-hint {
  font-size: 0.82rem;
  color: var(--fs-text-secondary);
  line-height: 1.55;
  margin: 0;
}

/* ── Footer notice ────────────────────────────────────────────────────────── */
.fs-footer-notice {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  max-width: var(--fs-max-w);
  margin: 0 auto 2rem;
  padding: 0.9rem 1.25rem;
  border-radius: var(--fs-radius-sm);
  border: 1px solid rgba(245, 158, 11, 0.2);
  background: rgba(245, 158, 11, 0.05);
  font-size: 0.82rem;
  color: var(--fs-text-secondary);
  line-height: 1.55;
}

.fs-footer-notice > i {
  color: var(--fs-accent);
  flex-shrink: 0;
  margin-top: 0.1rem;
  opacity: 0.8;
}

.fs-footer-notice strong {
  color: var(--fs-accent);
}

/* ── Toast notifications ──────────────────────────────────────────────────── */
#fsToastContainer {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.fs-toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--fs-radius-sm);
  border: 1px solid var(--fs-border-mid);
  background: var(--fs-surface);
  color: var(--fs-text);
  font-size: 0.84rem;
  font-family: 'DM Sans', sans-serif;
  backdrop-filter: blur(12px);
  pointer-events: auto;
  transition: opacity 300ms ease, transform 300ms ease;
  max-width: 320px;
}

.fs-toast.info    { border-left: 3px solid var(--fs-cta); }
.fs-toast.success { border-left: 3px solid var(--fs-good); }
.fs-toast.error   { border-left: 3px solid var(--fs-urgent); }
.fs-toast.warning { border-left: 3px solid var(--fs-watch); }

/* ── Context strip placeholders ───────────────────────────────────────────── */
.fs-ctx-empty {
  color: var(--fs-text-muted);
  font-style: italic;
  font-size: 0.7rem;
}

/* ── Loading dots ─────────────────────────────────────────────────────────── */
@keyframes fs-dot-pulse {
  0%, 80%, 100% { opacity: 0.25; transform: scale(0.7); }
  40%           { opacity: 1;    transform: scale(1);   }
}

.fs-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 2.5rem 1rem;
}

.fs-loading-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--fs-text-muted);
  animation: fs-dot-pulse 1.2s ease-in-out infinite;
}

.fs-loading-dot:nth-child(2) { animation-delay: 0.2s; }
.fs-loading-dot:nth-child(3) { animation-delay: 0.4s; }

/* ── Error message ────────────────────────────────────────────────────────── */
.fs-error-msg {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 1rem 1.1rem;
  border-radius: var(--fs-radius-sm);
  border: 1px solid rgba(248, 113, 113, 0.25);
  background: rgba(248, 113, 113, 0.06);
  color: var(--fs-urgent);
  font-size: 0.84rem;
  margin: 0.5rem 0;
}

/* ── Empty state ──────────────────────────────────────────────────────────── */
.fs-empty-state {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--fs-text-muted);
}

.fs-empty-icon {
  font-size: 2rem;
  margin-bottom: 0.9rem;
  opacity: 0.25;
}

.fs-empty-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--fs-text-secondary);
  margin: 0 auto 0.4rem;
}

.fs-empty-desc {
  font-size: 0.84rem;
  color: var(--fs-text-muted);
  max-width: 320px;
  margin: 0 auto 1.25rem;
  line-height: 1.6;
}

.fs-empty-guidance {
  display: flex;
  flex-direction: column;
  gap: 7px;
  max-width: 340px;
  margin: 0 auto;
}

.fs-guidance-link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 14px;
  border-radius: var(--fs-radius-sm);
  border: 1px solid var(--fs-border-mid);
  background: var(--fs-surface-raised);
  color: var(--fs-text-secondary);
  font-size: 0.875rem;
  font-family: 'DM Sans', sans-serif;
  text-decoration: none;
  transition: all var(--fs-transition);
}

.fs-guidance-link:hover {
  border-color: var(--fs-accent-border);
  color: var(--fs-accent);
  background: var(--fs-accent-glow);
}

.fs-guidance-link i {
  font-size: 0.8rem;
  opacity: 0.75;
  flex-shrink: 0;
}

/* ── Empty feed message ───────────────────────────────────────────────────── */
.fs-feed-empty {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 1.5rem 1.1rem;
  color: var(--fs-text-muted);
  font-size: 0.84rem;
}

.fs-feed-empty i {
  opacity: 0.4;
  font-size: 0.9rem;
}

/* ── Empty snapshot card ──────────────────────────────────────────────────── */
.fs-state-card-empty {
  padding: 1.5rem 1.1rem;
}

.fs-state-empty {
  color: var(--fs-text-muted);
  font-size: 0.84rem;
  line-height: 1.6;
  margin: 0;
}

/* ── Auth wall ────────────────────────────────────────────────────────────── */
.fs-auth-wall {
  text-align: center;
  padding: 2.5rem 1.25rem;
  border-radius: var(--fs-radius);
  border: 1px solid var(--fs-border);
  background: var(--fs-surface-raised);
}

.fs-auth-icon {
  font-size: 1.75rem;
  color: var(--fs-text-muted);
  opacity: 0.35;
  display: block;
  margin-bottom: 0.9rem;
}

.fs-auth-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--fs-text);
  margin: 0 auto 0.5rem;
}

.fs-auth-desc {
  font-size: 0.84rem;
  color: var(--fs-text-secondary);
  max-width: 320px;
  margin: 0 auto 1.25rem;
  line-height: 1.6;
}

.fs-auth-btns {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.fs-auth-cta {
  display: inline-flex;
  align-items: center;
  padding: 9px 20px;
  border-radius: var(--fs-radius-sm);
  border: 1px solid var(--fs-cta-border);
  background: var(--fs-cta-bg);
  color: var(--fs-cta);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--fs-transition);
  min-height: 40px;
}

.fs-auth-cta:hover {
  background: rgba(56, 189, 248, 0.18);
  border-color: rgba(56, 189, 248, 0.55);
}

.fs-auth-login {
  display: inline-flex;
  align-items: center;
  padding: 9px 16px;
  border-radius: var(--fs-radius-sm);
  border: 1px solid var(--fs-border-mid);
  background: transparent;
  color: var(--fs-text-secondary);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--fs-transition);
  min-height: 40px;
}

.fs-auth-login:hover {
  color: var(--fs-text);
  border-color: var(--fs-border-mid);
  background: var(--fs-surface);
}

/* ── Metric warning colour ────────────────────────────────────────────────── */
.fs-metric-warning { color: var(--fs-watch); }

/* ── Loading skeleton ─────────────────────────────────────────────────────── */
@keyframes fs-shimmer {
  0%   { opacity: 0.4; }
  50%  { opacity: 0.7; }
  100% { opacity: 0.4; }
}

.fs-skeleton {
  background: var(--fs-surface-raised);
  border-radius: var(--fs-radius-xs);
  animation: fs-shimmer 1.5s ease-in-out infinite;
}

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (min-width: 540px) {
  .fs-actions {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .fs-action-btn {
    flex: 1;
    min-width: 140px;
  }
}

@media (min-width: 640px) {
  .fs-page {
    padding: 0 1.5rem;
  }

  .fs-context {
    margin: 0 -1.5rem;
    padding: 0 1.5rem;
  }

  .fs-attn-title {
    font-size: 1rem;
  }

  .fs-state-label {
    min-width: 130px;
  }
}

@media (min-width: 768px) {
  .fs-page {
    margin-top: 1.5rem;
  }

  .fs-context-inner {
    padding: 12px 0;
  }

  .fs-tab {
    font-size: 0.9rem;
  }

  .fs-metrics-grid {
    gap: 10px;
  }
}

/* ── Reduced motion ───────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .fs-panel,
  .fs-feed-detail,
  .fs-tab,
  .fs-context-switch,
  .fs-attn-btn,
  .fs-action-btn,
  .fs-filter-btn {
    transition: none;
    animation: none;
  }
}