/* ═══════════════════════════════════════════════════════════════
   RAVEN AI FUSION — Onboarding Checklist + Empty State
   frontend/css/onboarding_checklist.css  ?v=20260610p5

   FE-5: First-task checklist onboarding + coaching empty states.
   All font sizes >= --rv-fs-xs (0.78rem / ~11px).
   All animations use transform + opacity only (GPU-composited).
   No hardcoded z-indexes — reference --rv-z-* tokens from tokens.css.
   ═══════════════════════════════════════════════════════════════ */

/* ── Checklist panel host (float panel content area) ─────────── */
.rv-ob-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--bg-primary, #0a0f1e);
  color: var(--text-primary, #e0e6f0);
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: var(--rv-fs-sm, 0.85rem);
  overflow: hidden;
}

/* ── Header ──────────────────────────────────────────────────── */
.rv-ob-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px 10px;
  border-bottom: 1px solid var(--border-color, rgba(255,255,255,0.08));
  flex-shrink: 0;
}

.rv-ob-header__icon {
  font-size: 1.1rem;
  line-height: 1;
  opacity: 0.85;
}

.rv-ob-header__text {
  flex: 1;
  min-width: 0;
}

.rv-ob-header__title {
  font-size: var(--rv-fs-md, 0.9rem);
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--accent, #00e5ff);
  text-transform: uppercase;
  line-height: 1.2;
}

.rv-ob-header__role {
  font-size: var(--rv-fs-xs, 0.78rem);
  color: var(--text-muted, rgba(224,230,240,0.45));
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  letter-spacing: 0.3px;
  margin-top: 1px;
}

.rv-ob-header__progress {
  font-size: var(--rv-fs-xs, 0.78rem);
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  color: var(--text-muted, rgba(224,230,240,0.45));
  white-space: nowrap;
}

/* ── Progress bar ─────────────────────────────────────────────── */
.rv-ob-progress-track {
  height: 3px;
  background: var(--bg-secondary, #0d1425);
  flex-shrink: 0;
}

.rv-ob-progress-fill {
  height: 100%;
  background: var(--accent, #00e5ff);
  /* animate width via inline style change; use transform instead for perf */
  transform-origin: left center;
  transition: transform var(--rv-dur-normal, 220ms) var(--rv-ease-out, ease-out);
}

/* ── Scroll body ──────────────────────────────────────────────── */
.rv-ob-body {
  flex: 1;
  overflow-y: auto;
  padding: 12px 0 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color, rgba(255,255,255,0.08)) transparent;
}

.rv-ob-body::-webkit-scrollbar { width: 4px; }
.rv-ob-body::-webkit-scrollbar-track { background: transparent; }
.rv-ob-body::-webkit-scrollbar-thumb {
  background: var(--border-color, rgba(255,255,255,0.08));
  border-radius: 2px;
}

/* ── Task items ───────────────────────────────────────────────── */
.rv-ob-task {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line, rgba(255,255,255,0.04));
  transition: background var(--rv-dur-fast, 120ms) ease;
  cursor: default;
}

.rv-ob-task:last-child {
  border-bottom: none;
}

.rv-ob-task:hover {
  background: var(--hover, rgba(255,255,255,0.025));
}

/* ── Task checkbox (server-controlled — no onclick) ──────────── */
.rv-ob-task__check {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--border-color, rgba(255,255,255,0.2));
  border-radius: 4px;
  margin-top: 1px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--rv-dur-fast, 120ms) ease,
              background var(--rv-dur-fast, 120ms) ease;
}

.rv-ob-task--done .rv-ob-task__check {
  background: var(--sev-ok, #22c55e);
  border-color: var(--sev-ok, #22c55e);
}

.rv-ob-task--done .rv-ob-task__check::after {
  content: '';
  display: block;
  width: 10px;
  height: 6px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg) translateY(-1px);
}

/* ── Task text body ───────────────────────────────────────────── */
.rv-ob-task__body {
  flex: 1;
  min-width: 0;
}

.rv-ob-task__title {
  font-size: var(--rv-fs-sm, 0.85rem);
  font-weight: 500;
  color: var(--text-primary, #e0e6f0);
  line-height: 1.3;
}

.rv-ob-task--done .rv-ob-task__title {
  color: var(--text-muted, rgba(224,230,240,0.45));
  text-decoration: line-through;
  text-decoration-color: rgba(224,230,240,0.3);
}

.rv-ob-task__desc {
  font-size: var(--rv-fs-xs, 0.78rem);
  color: var(--text-muted, rgba(224,230,240,0.45));
  margin-top: 2px;
  line-height: 1.4;
}

.rv-ob-task__via {
  display: inline-block;
  margin-top: 4px;
  font-size: var(--rv-fs-xs, 0.78rem);
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  color: var(--sev-ok, #22c55e);
  letter-spacing: 0.2px;
  opacity: 0.8;
}

/* ── Complete banner ──────────────────────────────────────────── */
.rv-ob-complete-banner {
  margin: 12px 16px;
  padding: 12px 14px;
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.3);
  border-radius: var(--rv-radius-sm, 4px);
  text-align: center;
}

.rv-ob-complete-banner__icon {
  font-size: 1.3rem;
  display: block;
  margin-bottom: 4px;
}

.rv-ob-complete-banner__text {
  font-size: var(--rv-fs-sm, 0.85rem);
  color: var(--sev-ok, #22c55e);
  font-weight: 500;
}

/* ── Error / loading states ───────────────────────────────────── */
.rv-ob-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 24px 16px;
  font-size: var(--rv-fs-xs, 0.78rem);
  color: var(--text-muted, rgba(224,230,240,0.45));
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
}

.rv-ob-loading__dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent, #00e5ff);
  animation: rv-ob-pulse 1.2s ease-in-out infinite;
}
.rv-ob-loading__dot:nth-child(2) { animation-delay: 0.2s; }
.rv-ob-loading__dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes rv-ob-pulse {
  0%, 80%, 100% { opacity: 0.15; transform: scale(0.8); }
  40%           { opacity: 1;    transform: scale(1); }
}

.rv-ob-error {
  padding: 16px;
  text-align: center;
}

.rv-ob-error__msg {
  font-size: var(--rv-fs-xs, 0.78rem);
  color: var(--sev-critical, #ef4444);
  margin-bottom: 8px;
}

.rv-ob-error__retry {
  font-size: var(--rv-fs-xs, 0.78rem);
  color: var(--accent, #00e5ff);
  background: none;
  border: 1px solid currentColor;
  border-radius: var(--rv-radius-sm, 4px);
  padding: 4px 10px;
  cursor: pointer;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  letter-spacing: 0.3px;
  transition: opacity var(--rv-dur-fast, 120ms) ease;
}
.rv-ob-error__retry:hover { opacity: 0.7; }

/* ── Footer (dismiss) ─────────────────────────────────────────── */
.rv-ob-footer {
  border-top: 1px solid var(--border-color, rgba(255,255,255,0.08));
  padding: 10px 16px;
  display: flex;
  justify-content: flex-end;
  flex-shrink: 0;
}

.rv-ob-dismiss-btn {
  font-size: var(--rv-fs-xs, 0.78rem);
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  letter-spacing: 0.3px;
  color: var(--text-muted, rgba(224,230,240,0.45));
  background: none;
  border: 1px solid var(--line, rgba(255,255,255,0.1));
  border-radius: var(--rv-radius-sm, 4px);
  padding: 4px 10px;
  cursor: pointer;
  transition: opacity var(--rv-dur-fast, 120ms) ease;
}
.rv-ob-dismiss-btn:hover { opacity: 0.6; }

/* ── Poll-refresh indicator ───────────────────────────────────── */
.rv-ob-poll-indicator {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent, #00e5ff);
  opacity: 0;
  margin-left: 4px;
  vertical-align: middle;
  transition: opacity var(--rv-dur-fast, 120ms) ease;
}

.rv-ob-poll-indicator--active {
  opacity: 0.7;
  animation: rv-ob-pulse 1s ease-in-out 2;
}


/* ════════════════════════════════════════════════════════════════
   COACHING EMPTY STATES (B2)
   Reusable .rv-empty-state component — applied to checklist panel
   and documented for Phase 3 retrofit on asset/threat/OSINT lists.

   Usage:
     UIKit.emptyState(containerEl, { icon, title, body, ctaLabel, ctaAction })
   — or include static HTML:
     <div class="rv-empty-state" role="status">
       <div class="rv-empty-state__icon">…</div>
       <div class="rv-empty-state__title">…</div>
       <div class="rv-empty-state__body">…</div>
       <button class="rv-empty-state__cta">…</button>
     </div>
   ════════════════════════════════════════════════════════════════ */

.rv-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 28px 20px 24px;
  gap: 8px;
}

.rv-empty-state__icon {
  font-size: 1.9rem;
  line-height: 1;
  opacity: 0.55;
  /* icon enters from slightly below */
  animation: rv-empty-in var(--rv-dur-normal, 220ms) var(--rv-ease-out, ease-out) both;
}

.rv-empty-state__title {
  font-size: var(--rv-fs-md, 0.9rem);
  font-weight: 600;
  color: var(--text-secondary, rgba(224,230,240,0.7));
  line-height: 1.3;
  animation: rv-empty-in var(--rv-dur-normal, 220ms) var(--rv-ease-out, ease-out) 40ms both;
}

.rv-empty-state__body {
  font-size: var(--rv-fs-xs, 0.78rem);
  color: var(--text-muted, rgba(224,230,240,0.45));
  max-width: 260px;
  line-height: 1.5;
  animation: rv-empty-in var(--rv-dur-normal, 220ms) var(--rv-ease-out, ease-out) 80ms both;
}

.rv-empty-state__cta {
  margin-top: 4px;
  font-size: var(--rv-fs-xs, 0.78rem);
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  letter-spacing: 0.5px;
  padding: 5px 14px;
  border: 1px solid var(--accent, #00e5ff);
  border-radius: var(--rv-radius-sm, 4px);
  color: var(--accent, #00e5ff);
  background: rgba(0,229,255,0.06);
  cursor: pointer;
  transition: background var(--rv-dur-fast, 120ms) ease,
              opacity var(--rv-dur-fast, 120ms) ease;
  animation: rv-empty-in var(--rv-dur-normal, 220ms) var(--rv-ease-out, ease-out) 120ms both;
}

.rv-empty-state__cta:hover {
  background: rgba(0,229,255,0.12);
}

.rv-empty-state__cta:active {
  opacity: 0.75;
}

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

/* ── Help-menu checklist entry ───────────────────────────────── */
/* A lightweight launch link rendered inside the HelpMenu quickstart tab. */
.rv-ob-help-entry {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 10px 0 4px;
  padding: 8px 10px;
  border: 1px solid rgba(0,229,255,0.2);
  border-radius: var(--rv-radius-sm, 4px);
  background: rgba(0,229,255,0.04);
  cursor: pointer;
  color: var(--accent, #00e5ff);
  font-size: var(--rv-fs-xs, 0.78rem);
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  letter-spacing: 0.3px;
  transition: background var(--rv-dur-fast, 120ms) ease;
  width: 100%;
  text-align: left;
  border-left-width: 3px;
}

.rv-ob-help-entry:hover {
  background: rgba(0,229,255,0.08);
}

.rv-ob-help-entry__label {
  flex: 1;
}

.rv-ob-help-entry__badge {
  font-size: var(--rv-fs-xs, 0.78rem);
  padding: 1px 6px;
  border-radius: 10px;
  background: rgba(34,197,94,0.15);
  color: var(--sev-ok, #22c55e);
  border: 1px solid rgba(34,197,94,0.3);
}

.rv-ob-help-entry__badge--incomplete {
  background: rgba(0,229,255,0.1);
  color: var(--accent, #00e5ff);
  border-color: rgba(0,229,255,0.3);
}