/* ==========================================================================
   idea.css — Styles for The BTCC Idea Page (idea.html)
   ========================================================================== */

/* Page Header Banner */
.idea-page-intro {
  background-color: var(--bg-soft-ivory);
  border-bottom: 1px solid var(--border-light);
  padding: 4rem 0;
}

/* Two Column Split Grid */
.grid-2-col {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

/* Quote Callout */
.quote-callout {
  background: #ffffff;
  border-left: 3px solid var(--accent-gold);
  padding: 1.3rem 1.6rem;
  border-radius: 4px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
}

.quote-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent-gold);
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.quote-text {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--primary-navy);
  font-style: italic;
  margin: 0;
  line-height: 1.4;
}

/* 8 Inquiries Grid */
.inquiry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-top: 2rem;
}

.inquiry-card {
  background: #ffffff;
  padding: 1.6rem 1.4rem;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
  transition: all 0.2s ease;
}

.inquiry-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.06);
  border-color: #cbd5e1;
}

.inquiry-num {
  color: var(--accent-gold);
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  letter-spacing: 0.05em;
}

.inquiry-title {
  font-size: 1.05rem;
  color: var(--primary-navy);
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.inquiry-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin: 0;
}

/* The Capability Chain */
.chain-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  overflow-x: auto;
  padding: 1rem 0;
  margin: 2.5rem 0;
}

.chain-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
  min-width: 90px;
}

.chain-icon-circle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1px solid #bfdbfe;
  background-color: #eff6ff;
  color: var(--primary-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.chain-node:hover .chain-icon-circle {
  border-color: var(--accent-gold);
  background-color: #fffbeb;
  color: var(--accent-gold-dark);
}

.chain-node-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: #334155;
}

.chain-arrow {
  color: #94a3b8;
  font-size: 1.1rem;
  font-weight: bold;
  margin-bottom: 1.4rem;
}

/* What BTCC Is vs What BTCC Is Not */
.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2.5rem;
}

.comparison-card {
  background: #ffffff;
  padding: 2.2rem;
  border-radius: 6px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.04);
}

.comparison-card.is-card {
  border-top: 4px solid var(--accent-gold);
}

.comparison-card.is-not-card {
  border-top: 4px solid #94a3b8;
}

.comparison-badge {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.is-card .comparison-badge {
  color: var(--accent-gold);
}

.is-not-card .comparison-badge {
  color: #64748b;
}

.comparison-list {
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
  font-size: 0.92rem;
}

.comparison-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  line-height: 1.5;
}

.comparison-item .icon-check {
  color: var(--accent-gold);
  font-weight: bold;
}

.comparison-item .icon-cross {
  color: #94a3b8;
  font-size: 1.1rem;
  line-height: 1;
}

/* Signature Formula Banner */
.signature-formula-banner {
  background-color: var(--primary-navy);
  color: #ffffff;
  text-align: center;
  padding: 5rem 0;
}

.formula-tag {
  color: var(--accent-gold-light);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.formula-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 2.8vw, 2.1rem);
  color: #ffffff;
  margin-bottom: 1.5rem;
  line-height: 1.4;
  letter-spacing: 0.02em;
}

.formula-sub {
  font-size: 1.05rem;
  color: #cbd5e1;
  max-width: 720px;
  margin: 0 auto 2.5rem;
}

/* Responsive */
@media (max-width: 900px) {
  .grid-2-col,
  .comparison-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .inquiry-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .inquiry-grid {
    grid-template-columns: 1fr;
  }
}