/* ===================================================================
   OPTIONS LAB — Options Pricing, Strategies, Greeks
   Page: pages/options.html
   =================================================================== */

/* ===== OPTIONS LAB TABS ===== */
.options-tabs {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1.5rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.3rem;
  flex-wrap: wrap;
}

.options-tab {
  padding: 0.65rem 1.25rem;
  font-size: 0.85rem;
  font-weight: 600;
  font-family: inherit;
  background: none;
  border: none;
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.options-tab:hover {
  color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.05);
}

.options-tab.active {
  color: var(--accent);
  background-color: var(--bg-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

/* ===== STRATEGY SELECTOR ===== */
.strategy-selector {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.strategy-tier {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.strategy-tier-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0;
}

.strategy-tier-label.tier-beginner {
  color: #4ade80;
}

.strategy-tier-label.tier-intermediate {
  color: #f59e0b;
}

.strategy-tier-label.tier-advanced {
  color: #f97316;
}

.strategy-tier-label.tier-expert {
  color: #f472b6;
}

.strategy-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.strategy-btn {
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 500;
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.strategy-btn:hover {
  border-color: var(--accent);
  color: var(--text-primary);
  background-color: var(--bg-secondary);
}

.strategy-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background-color: rgba(45, 212, 191, 0.1);
}

/* ===== STRATEGY INFO CARD ===== */
.strategy-info {
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.strategy-info-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.strategy-info-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.strategy-info-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.strategy-tag {
  padding: 0.2rem 0.6rem;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.tag-bullish {
  background-color: rgba(74, 222, 128, 0.15);
  color: #4ade80;
}

.tag-bearish {
  background-color: rgba(244, 114, 182, 0.15);
  color: #f472b6;
}

.tag-neutral {
  background-color: rgba(148, 163, 184, 0.15);
  color: #94a3b8;
}

.tag-volatile {
  background-color: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
}

.tag-income {
  background-color: rgba(96, 165, 250, 0.15);
  color: #60a5fa;
}

.tag-hedge {
  background-color: rgba(168, 85, 247, 0.15);
  color: #a855f7;
}

.tag-beginner {
  background-color: rgba(74, 222, 128, 0.15);
  color: #4ade80;
}

.tag-intermediate {
  background-color: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
}

.tag-advanced {
  background-color: rgba(249, 115, 22, 0.15);
  color: #f97316;
}

.tag-expert {
  background-color: rgba(244, 114, 182, 0.15);
  color: #f472b6;
}

.strategy-info-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.strategy-info-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
}

.strategy-detail {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.strategy-detail-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
}

.strategy-detail-value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.detail-profit {
  color: #4ade80;
}

.detail-loss {
  color: #f472b6;
}

.detail-neutral {
  color: var(--accent);
}

/* ===== STRATEGY LEGS INPUT ===== */
.legs-container {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.leg-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  flex-wrap: wrap;
}

.leg-label {
  font-size: 0.8rem;
  font-weight: 700;
  min-width: 60px;
  color: var(--text-secondary);
}

.leg-label.leg-buy {
  color: #4ade80;
}

.leg-label.leg-sell {
  color: #f472b6;
}

.leg-label.leg-stock {
  color: #60a5fa;
}

.leg-row .form-group {
  flex: 1;
  min-width: 100px;
  margin-bottom: 0;
}

.leg-row .form-group label {
  font-size: 0.7rem;
  margin-bottom: 0.2rem;
}

.leg-row .form-group input {
  padding: 0.4rem 0.6rem;
  font-size: 0.85rem;
}

/* ===== PREMIUM SUGGESTION ===== */
.leg-premium-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
  min-width: 100px;
}

.leg-premium-suggestion {
  font-size: 0.75rem;
  color: var(--accent);
  cursor: pointer;
  transition: color 0.2s ease;
}

.leg-premium-suggestion:hover {
  color: #5eead4;
  text-decoration: underline;
}

.pricing-inputs {
  padding: 0.75rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 0.75rem;
}

/* ===== PAYOFF CHART ===== */


/* ===== PAYOFF TIME CONTROLS ===== */
.payoff-time-controls {
  margin-bottom: 1rem;
}

.payoff-time-toggle {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.payoff-slider-container {
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
}

.payoff-slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.payoff-slider-header label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.payoff-days-display {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  min-width: 80px;
  text-align: right;
}

.payoff-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--border);
  outline: none;
  cursor: pointer;
}

.payoff-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid var(--bg-secondary);
  box-shadow: 0 0 6px rgba(45, 212, 191, 0.4);
  transition: box-shadow 0.2s ease;
}

.payoff-slider::-webkit-slider-thumb:hover {
  box-shadow: 0 0 12px rgba(45, 212, 191, 0.6);
}

.payoff-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid var(--bg-secondary);
}

.payoff-slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 0.4rem;
}

/* ===== MULTI-LINE CHART LEGEND ===== */
.payoff-time-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.5rem;
  font-size: 0.8rem;
}

.payoff-time-legend-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.payoff-time-legend-line {
  width: 20px;
  height: 3px;
  border-radius: 2px;
}

/* ===== PAYOFF TIME EXPLAINER ===== */
.payoff-time-explainer {
  margin-top: 1rem;
  padding: 1rem 1.25rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.payoff-time-explainer strong {
  color: var(--text-primary);
}

.payoff-time-explainer .explainer-title {
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.payoff-time-explainer .explainer-highlight {
  color: var(--accent);
  font-weight: 600;
}

.payoff-time-explainer .explainer-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.payoff-time-explainer .explainer-comparison-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.payoff-time-explainer .explainer-comparison-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.payoff-time-explainer .explainer-comparison-value {
  font-weight: 700;
  font-size: 0.95rem;
}

/* ===== GREEKS DISPLAY ===== */
.greeks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.greek-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.greek-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.greek-symbol {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}

.greek-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.greek-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.greek-description {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ===== BLACK-SCHOLES RESULTS ===== */
.bs-results {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.bs-result-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  text-align: center;
}

.bs-result-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.bs-result-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

.bs-result-sublabel {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* ===== REFERENCE PAYOFF DIAGRAM ===== */


/* ===== RISK WARNING ===== */
.risk-warning {
  background-color: rgba(244, 114, 182, 0.06);
  border: 1px solid rgba(244, 114, 182, 0.15);
  border-radius: 8px;
  padding: 0.6rem 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.risk-warning strong {
  color: #f472b6;
  white-space: nowrap;
  display: inline;
  margin-bottom: 0;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .options-tabs {
    gap: 0;
  }

  .options-tab {
    padding: 0.6rem 0.75rem;
    font-size: 0.8rem;
  }

  .leg-row {
    flex-direction: column;
    align-items: stretch;
  }

  .leg-label {
    min-width: auto;
  }

  .strategy-info-details {
    grid-template-columns: 1fr 1fr;
  }

  .greeks-grid {
    grid-template-columns: 1fr 1fr;
  }

  .bs-results {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .payoff-time-explainer .explainer-comparison {
    grid-template-columns: 1fr;
  }
}