/* /help/explainer.css
   FOAM Portal — reusable "?" explainer modal styles.
   Architecture ported from the Mission Metrics trading portal
   (/reports/_lib/explainer.css), restyled to the FOAM palette.
   Loaded once in index.html; auto-attaches to every .explain-trigger. */

:root {
  --foam-navy: #0F2C5C;
  --foam-navy-deep: #091C3D;
  --foam-indigo: #4F46E5;
  --foam-indigo-soft: #EEF2FF;
  --foam-emerald: #059669;
  --foam-amber: #D97706;
  --foam-ink: #1E293B;
  --foam-muted: #64748B;
  --foam-line: #E2E8F0;
}

/* ─── The "?" trigger ─────────────────────────────────────────── */
.explain-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  margin-left: 8px;
  padding: 0;
  border-radius: 50%;
  background: var(--foam-indigo-soft);
  color: var(--foam-indigo);
  font-family: inherit;
  font-size: 13px;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  border: 1.5px solid rgba(79, 70, 229, 0.35);
  transition: all 0.15s ease;
  vertical-align: middle;
  user-select: none;
  flex-shrink: 0;
}
.explain-trigger:hover {
  background: rgba(79, 70, 229, 0.18);
  border-color: var(--foam-indigo);
  transform: scale(1.1);
}
.explain-trigger:focus-visible {
  outline: 2px solid var(--foam-indigo);
  outline-offset: 2px;
}
/* On dark cards */
.explain-trigger.on-dark {
  background: rgba(255, 255, 255, 0.14);
  color: #C7D2FE;
  border-color: rgba(199, 210, 254, 0.45);
}
.explain-trigger.on-dark:hover {
  background: rgba(255, 255, 255, 0.28);
  border-color: #C7D2FE;
}
/* Corner placement inside a card that is itself a button */
.explain-trigger.corner {
  position: absolute;
  top: 18px;
  right: 18px;
  margin-left: 0;
  z-index: 20;
}

/* ─── Modal ───────────────────────────────────────────────────── */
.explain-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(9, 28, 61, 0.78);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9000;
  padding: 20px;
  animation: explainFadeIn 0.18s ease;
}
@keyframes explainFadeIn { from { opacity: 0; } to { opacity: 1; } }

.explain-modal {
  background: #FFFFFF;
  border-radius: 20px;
  max-width: 640px;
  width: 100%;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(9, 28, 61, 0.45), 0 0 0 1px rgba(79, 70, 229, 0.18);
  animation: explainSlideUp 0.22s ease;
}
@keyframes explainSlideUp { from { transform: translateY(12px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

.explain-modal-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 24px;
  background: linear-gradient(135deg, var(--foam-navy-deep), var(--foam-navy) 65%, #1E3A8A);
  color: #fff;
  flex-shrink: 0;
}
.explain-modal-header .icon {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.16);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  font-weight: 900;
  flex-shrink: 0;
}
.explain-modal-header h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.2px;
  flex: 1;
  min-width: 0;
}
.explain-modal-close {
  background: rgba(255, 255, 255, 0.12);
  border: none;
  color: #fff;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 19px;
  line-height: 1;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.15s;
}
.explain-modal-close:hover { background: rgba(255, 255, 255, 0.28); }

.explain-modal-body {
  padding: 24px;
  overflow-y: auto;
  color: var(--foam-ink);
  font-size: 14.5px;
  line-height: 1.65;
}
.explain-modal-body h4 {
  margin: 20px 0 8px;
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--foam-muted);
}
.explain-modal-body h4:first-child { margin-top: 0; }
.explain-modal-body p { margin: 0 0 12px; }
.explain-modal-body ul,
.explain-modal-body ol { margin: 0 0 14px; padding-left: 22px; }
.explain-modal-body li { margin-bottom: 6px; }
.explain-modal-body strong { color: var(--foam-navy); font-weight: 700; }
.explain-modal-body code {
  background: #F1F5F9;
  border: 1px solid var(--foam-line);
  border-radius: 5px;
  padding: 1px 6px;
  font-size: 12.5px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.explain-callout {
  background: var(--foam-indigo-soft);
  border-left: 4px solid var(--foam-indigo);
  border-radius: 10px;
  padding: 12px 16px;
  margin: 0 0 14px;
  font-size: 13.5px;
}
.explain-callout.warn {
  background: #FFFBEB;
  border-left-color: var(--foam-amber);
}
.explain-callout.danger {
  background: #FEF2F2;
  border-left-color: #DC2626;
}
.explain-callout.tip {
  background: #ECFDF5;
  border-left-color: var(--foam-emerald);
}

.explain-modal-footer {
  padding: 14px 24px;
  border-top: 1px solid var(--foam-line);
  background: #F8FAFC;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-shrink: 0;
}
.explain-manual-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--foam-navy);
  color: #fff;
  text-decoration: none;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 10px 18px;
  border-radius: 10px;
  transition: background 0.15s, transform 0.15s;
}
.explain-manual-link:hover { background: var(--foam-indigo); transform: translateY(-1px); }

@media (max-width: 520px) {
  .explain-modal { border-radius: 16px; }
  .explain-modal-body { padding: 18px; font-size: 14px; }
  .explain-trigger.corner { top: 14px; right: 14px; }
}