/* ============================================
   detail.css — Pattern Detail / Education Page
   ============================================ */

/* Section container */
.detail-section {
  max-width: 960px;
  margin: 0 auto;
  padding: calc(var(--header-height) + 24px) 24px 48px;
  animation: fadeIn 0.3s ease;
}

/* ---- Top bar: back + breadcrumb ---- */
.detail-top-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.detail-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-primary);
  border-radius: 6px;
  font-size: 13px;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}

.detail-back-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.detail-back-btn svg {
  flex-shrink: 0;
}

.detail-breadcrumb {
  font-size: 13px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.detail-breadcrumb .bc-sep {
  margin: 0 6px;
  opacity: 0.5;
}

.detail-breadcrumb .bc-link {
  color: var(--text-secondary);
  cursor: pointer;
  transition: color 0.15s;
}

.detail-breadcrumb .bc-link:hover {
  color: var(--accent-blue);
}

.detail-breadcrumb .bc-current {
  color: var(--text-primary);
}

/* ---- Hero section: text + SVG ---- */
.detail-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: 12px;
  padding: 28px;
}

.detail-hero-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
}

.detail-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.2;
}

.detail-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.detail-badges .badge {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 4px;
  font-weight: 600;
  text-transform: capitalize;
}

.detail-description {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-secondary);
  margin: 0;
}

/* SVG side */
.detail-hero-svg {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.detail-variant-tabs {
  display: flex;
  gap: 4px;
}

.detail-variant-tabs .variant-tab {
  flex: 1;
  padding: 6px 0;
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-mono);
  text-align: center;
  border: 1px solid var(--border-primary);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  border-radius: 4px;
}

.detail-variant-tabs .variant-tab.active {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--accent-blue);
}

.detail-variant-tabs .variant-tab.tab-bullish.active {
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.detail-variant-tabs .variant-tab.tab-bearish.active {
  border-color: var(--accent-red);
  color: var(--accent-red);
}

.detail-svg-container {
  background: var(--bg-primary);
  border: 1px solid var(--border-secondary);
  border-radius: 8px;
  padding: 12px;
  aspect-ratio: 400 / 250;
  display: flex;
  align-items: center;
  justify-content: center;
}

.detail-svg-container .pattern-svg {
  width: 100%;
  height: 100%;
}

/* ---- Content blocks ---- */
.detail-content {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.detail-block {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: 10px;
  padding: 24px;
}

.detail-block-heading {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.detail-block-heading svg {
  color: var(--accent-blue);
  flex-shrink: 0;
}

/* --- Overview paragraphs --- */
.detail-overview p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0 0 10px;
}

.detail-overview p:last-child {
  margin-bottom: 0;
}

/* --- Checklist (identification) --- */
.detail-checklist {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.detail-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-secondary);
}

.detail-checklist .check-icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  color: var(--accent-green);
}

/* --- Trading grid (entry/stop/target/RR) --- */
.detail-trading-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.detail-trading-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-secondary);
  border-radius: 8px;
  padding: 14px;
}

.detail-trading-card-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-family: var(--font-mono);
}

.detail-trading-card-value {
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-primary);
}

.detail-trading-card.card-entry .detail-trading-card-label { color: var(--accent-green); }
.detail-trading-card.card-stop .detail-trading-card-label { color: var(--accent-red); }
.detail-trading-card.card-target .detail-trading-card-label { color: var(--accent-blue); }
.detail-trading-card.card-rr .detail-trading-card-label { color: var(--accent-purple); }

/* --- Tips & Pitfalls --- */
.detail-tips-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.detail-tip-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-secondary);
  padding: 10px 14px;
  border-radius: 6px;
  border-left: 3px solid;
}

.detail-tip-item.tip-type-tip {
  background: rgba(63, 185, 80, 0.06);
  border-color: var(--accent-green);
}

.detail-tip-item.tip-type-pitfall {
  background: rgba(210, 153, 34, 0.06);
  border-color: var(--accent-orange);
}

.detail-tip-icon {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  margin-top: 2px;
}

.tip-type-tip .detail-tip-icon { color: var(--accent-green); }
.tip-type-pitfall .detail-tip-icon { color: var(--accent-orange); }

/* --- Performance Context --- */
.detail-perf-text p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0 0 12px;
}

.detail-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 14px;
}

.detail-stat {
  background: var(--bg-primary);
  border: 1px solid var(--border-secondary);
  border-radius: 8px;
  padding: 12px;
  text-align: center;
}

.detail-stat-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 4px;
  font-family: var(--font-mono);
}

.detail-stat-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-blue);
}

/* --- Related Patterns --- */
.detail-related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
}

.detail-related-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg-primary);
  border: 1px solid var(--border-secondary);
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.detail-related-card:hover {
  background: var(--bg-hover);
  border-color: var(--accent-blue);
}

.detail-related-card-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}

.detail-related-card-type {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: capitalize;
}

.detail-related-card-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 4px;
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.detail-related-card-icon svg {
  color: var(--accent-cyan);
}

/* --- Nav arrows (prev/next) --- */
.detail-nav-arrows {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
}

.detail-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-primary);
  border-radius: 6px;
  font-size: 13px;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.detail-nav-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.detail-nav-btn .nav-label {
  font-size: 11px;
  color: var(--text-muted);
}

.detail-nav-btn .nav-name {
  font-weight: 600;
}

.detail-nav-btn-prev .nav-name,
.detail-nav-btn-prev .nav-label {
  text-align: left;
}

.detail-nav-btn-next .nav-name,
.detail-nav-btn-next .nav-label {
  text-align: right;
}

.detail-nav-btn-prev {
  flex-direction: row;
}

.detail-nav-btn-next {
  flex-direction: row-reverse;
}

.detail-nav-btn .nav-text {
  display: flex;
  flex-direction: column;
}

/* ============================================
   Strategy Detail — Strategy-Specific Styles
   ============================================ */

/* --- Strategy hero: code preview instead of SVG --- */
.strat-detail-hero {
  grid-template-columns: 1fr 1fr;
  align-items: start;
}

/* --- Strategy number badge --- */
.strat-detail-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--accent-purple);
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  font-family: var(--font-mono);
  flex-shrink: 0;
}

/* --- Code preview in hero --- */
.strat-detail-code-preview {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-secondary);
  border-radius: 8px;
  overflow: hidden;
  background: var(--bg-primary);
}

.strat-detail-code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-secondary);
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.strat-detail-code-header .strat-copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: var(--bg-hover);
  color: var(--text-secondary);
  border: 1px solid var(--border-primary);
  border-radius: 4px;
  font-size: 11px;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.strat-detail-code-header .strat-copy-btn:hover {
  background: var(--accent-blue);
  color: #fff;
  border-color: var(--accent-blue);
}

.strat-detail-code-header .strat-copy-btn.copied {
  background: var(--accent-green);
  color: #fff;
  border-color: var(--accent-green);
}

.strat-detail-code-block {
  max-height: 300px;
  overflow-y: auto;
  padding: 14px;
}

.strat-detail-code-block pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.strat-detail-code-block code {
  font-size: 12px;
  font-family: var(--font-mono);
  line-height: 1.6;
  color: var(--text-secondary);
}

/* --- Entry Logic rule cards --- */
.detail-rules-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.detail-rule-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-secondary);
  border-radius: 8px;
  padding: 16px;
  border-top: 3px solid var(--border-secondary);
}

.detail-rule-card.detail-rule-bullish {
  border-top-color: var(--accent-green);
}

.detail-rule-card.detail-rule-bearish {
  border-top-color: var(--accent-red);
}

.detail-rule-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
  font-family: var(--font-mono);
}

.detail-rule-bullish .detail-rule-label {
  color: var(--accent-green);
}

.detail-rule-bearish .detail-rule-label {
  color: var(--accent-red);
}

.detail-rule-card p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0;
}

/* --- Framework step badge --- */
.detail-framework-row {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.detail-framework-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.detail-framework-step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-purple);
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  font-family: var(--font-mono);
}

.detail-framework-step-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent-purple);
  font-family: var(--font-mono);
}

.detail-framework-info {
  flex: 1;
  min-width: 0;
}

.detail-framework-label {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.detail-framework-desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-secondary);
  margin: 0;
}

/* --- Numbered usage steps --- */
.detail-usage-steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.detail-usage-step {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.detail-step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-blue);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  font-family: var(--font-mono);
  flex-shrink: 0;
  margin-top: 1px;
}

.detail-usage-step p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .detail-section {
    padding: calc(var(--header-height) + 16px) 16px 32px;
  }

  .detail-hero {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 20px;
  }

  .detail-title {
    font-size: 22px;
  }

  .detail-trading-grid {
    grid-template-columns: 1fr;
  }

  .detail-stats-grid {
    grid-template-columns: 1fr;
  }

  .detail-related-grid {
    grid-template-columns: 1fr 1fr;
  }

  .detail-nav-arrows {
    flex-direction: column;
  }

  .detail-nav-btn-next {
    flex-direction: row;
  }

  .detail-nav-btn-next .nav-name,
  .detail-nav-btn-next .nav-label {
    text-align: left;
  }

  .strat-detail-hero {
    grid-template-columns: 1fr;
  }

  .strat-detail-code-block {
    max-height: 200px;
  }

  .detail-rules-grid {
    grid-template-columns: 1fr;
  }

  .detail-framework-row {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .detail-hero {
    padding: 16px;
  }

  .detail-block {
    padding: 16px;
  }

  .detail-breadcrumb {
    display: none;
  }

  .detail-related-grid {
    grid-template-columns: 1fr;
  }
}