/* Kryptoca Learn module. Uses v2 CSS variables. */
:root {
  --learn-card: rgba(255,255,255,.04);
  --learn-border: rgba(255,255,255,.10);
  --learn-shadow: 0 10px 30px rgba(0,0,0,.35);
  --learn-accent: var(--kv2-accent, #7c3aed);
  --learn-good: #22c55e;
  --learn-bad: #ef4444;
  --learn-warn: #f59e0b;
}

.kv2-learn-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 14px 40px;
}

.learn-hero {
  border: 1px solid var(--learn-border);
  background: linear-gradient(135deg, rgba(124,58,237,.25), rgba(34,197,94,.14));
  border-radius: 16px;
  padding: 18px;
  box-shadow: var(--learn-shadow);
  overflow: hidden;
}

.learn-hero h1, .learn-hero h2 {
  margin: 0 0 8px;
  line-height: 1.15;
}

.learn-hero p {
  margin: 0;
  opacity: .92;
  max-width: 70ch;
}

.learn-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 14px;
}

@media (min-width: 920px) {
  .learn-grid { grid-template-columns: 1.7fr .9fr; }
}

.learn-card {
  border: 1px solid var(--learn-border);
  background: var(--learn-card);
  border-radius: 16px;
  box-shadow: var(--learn-shadow);
}

.learn-card .pad { padding: 14px; }

.learn-kpis {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

@media (min-width: 560px) {
  .learn-kpis { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.kpi {
  border: 1px solid var(--learn-border);
  background: rgba(0,0,0,.18);
  border-radius: 14px;
  padding: 10px;
}

.kpi .label { font-size: 12px; opacity: .85; }
.kpi .value { font-size: 16px; font-weight: 700; margin-top: 4px; }

.learn-search {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.learn-search input {
  flex: 1 1 260px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--learn-border);
  background: rgba(0,0,0,.22);
  color: inherit;
  outline: none;
}

.learn-search input:focus {
  border-color: rgba(124,58,237,.55);
  box-shadow: 0 0 0 3px rgba(124,58,237,.18);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--learn-border);
  background: rgba(124,58,237,.22);
  color: inherit;
  text-decoration: none;
  transition: transform .12s ease, background .12s ease, border-color .12s ease, box-shadow .12s ease;
  user-select: none;
}

.btn:hover {
  transform: translateY(-1px);
  background: rgba(124,58,237,.28);
  border-color: rgba(124,58,237,.55);
  box-shadow: 0 12px 25px rgba(124,58,237,.12);
}

.btn:active { transform: translateY(0px) scale(.99); }

.btn.secondary {
  background: rgba(255,255,255,.06);
}

.btn.secondary:hover {
  background: rgba(255,255,255,.09);
  border-color: rgba(255,255,255,.18);
}

.learn-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 12px;
}

.lesson-item {
  border: 1px solid var(--learn-border);
  background: rgba(0,0,0,.18);
  border-radius: 14px;
  padding: 12px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

@media (min-width: 760px) {
  .lesson-item {
    grid-template-columns: 1.2fr .8fr;
    align-items: center;
  }
}

.lesson-title {
  font-weight: 800;
  font-size: 16px;
  margin: 0 0 6px;
}

.lesson-meta {
  font-size: 12px;
  opacity: .86;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--learn-border);
  border-radius: 999px;
  padding: 6px 10px;
  background: rgba(255,255,255,.06);
  font-size: 12px;
}

.badge.good { border-color: rgba(34,197,94,.35); background: rgba(34,197,94,.10); }
.badge.warn { border-color: rgba(245,158,11,.35); background: rgba(245,158,11,.10); }
.badge.accent { border-color: rgba(124,58,237,.45); background: rgba(124,58,237,.14); }

.lesson-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-start;
  flex-wrap: wrap;
}

@media (min-width: 760px) {
  .lesson-actions { justify-content: flex-end; }
}

.learn-article h1 {
  font-size: 28px;
  margin: 0 0 8px;
}

.learn-byline {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 8px;
  opacity: .92;
}

.learn-byline img {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid var(--learn-border);
  background: rgba(0,0,0,.2);
}

.learn-article .content {
  margin-top: 14px;
  line-height: 1.65;
}

.learn-article .content h2 { margin-top: 18px; font-size: 20px; }
.learn-article .content h3 { margin-top: 14px; font-size: 16px; opacity: .98; }

.callout {
  border: 1px solid var(--learn-border);
  border-radius: 14px;
  padding: 12px;
  background: rgba(0,0,0,.18);
  margin: 12px 0;
}

.callout .label {
  font-weight: 800;
  font-size: 12px;
  letter-spacing: .02em;
  text-transform: uppercase;
  opacity: .9;
  margin-bottom: 6px;
}

.callout.def { border-color: rgba(124,58,237,.45); background: rgba(124,58,237,.10); }
.callout.tip { border-color: rgba(34,197,94,.35); background: rgba(34,197,94,.10); }
.callout.warn { border-color: rgba(245,158,11,.35); background: rgba(245,158,11,.10); }

.quiz {
  border: 1px solid var(--learn-border);
  border-radius: 16px;
  padding: 12px;
  background: rgba(255,255,255,.05);
  margin-top: 14px;
}

.quiz h3 { margin: 0 0 8px; }
.quiz ol { margin: 0; padding-left: 18px; }
.quiz li { margin: 8px 0; }

.nav-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-top: 16px;
}

.small-note { font-size: 12px; opacity: .85; }