/* ============================================
   Business Intelligence & Analytics – Page styles
   Executive-level, data-driven, insight-focused
   ============================================ */

.bi-page {
  padding-bottom: 0;
}

/* ---------- Section 1 – Hero ---------- */
.bia-hero {
  background: linear-gradient(162deg, #1a3d47 0%, #247a8a 50%, #2d5f6b 100%);
  background-image: linear-gradient(162deg, #1a3d47 0%, #247a8a 45%, #2d5f6b 100%);
  padding: clamp(64px, 10vw, 100px) 0;
  color: #fff;
  position: relative;
}

.bia-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

.bia-hero-inner {
  max-width: 860px;
  position: relative;
  z-index: 1;
}

.bia-hero-title {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  font-weight: 700;
  line-height: 1.22;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
  text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.bia-hero-sub {
  font-size: clamp(0.95rem, 1.4vw, 1.05rem);
  line-height: 1.55;
  margin: 0 0 2rem;
  opacity: 0.94;
  max-width: 620px;
}

.bia-hero-badges {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.bia-hero-badges li {
  position: relative;
  padding-left: 1rem;
}

.bia-hero-badges li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-primary, #1abc9c);
}

/* ---------- Section 2 – The Data Challenge ---------- */
.bia-challenge {
  padding: clamp(56px, 8vw, 80px) 0;
  background: #fff;
}

.bia-challenge-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 56px);
  align-items: center;
}

.bia-challenge-title {
  font-size: clamp(1.3rem, 2vw, 1.5rem);
  font-weight: 700;
  color: var(--color-dark, #2c3e50);
  margin: 0 0 1rem;
}

.bia-challenge-text {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-muted, #6c757d);
  margin: 0 0 1.25rem;
}

.bia-challenge-list {
  margin: 0;
  padding: 0 0 0 1.25rem;
  color: var(--color-dark-soft, #3d566e);
  font-size: 0.95rem;
  line-height: 1.75;
}

.bia-challenge-list li {
  margin-bottom: 0.4rem;
}

.bia-challenge-visual {
  min-height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.bia-challenge-placeholder {
  width: 100%;
  min-height: 240px;
  background-color: #e8f4f5;
  background-image: url(../images/bi-image.jpg);
  background-size: cover;
  background-position: center;
  border: 1px solid rgba(26, 188, 156, 0.15);
  border-radius: var(--radius-lg, 12px);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

.bia-placeholder-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted, #6c757d);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ---------- Section 3 – Core BI Capabilities ---------- */
.bia-capabilities {
  padding: clamp(56px, 8vw, 80px) 0;
  background: var(--color-bg-light, #f7f9fb);
}

.bia-cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.bia-cap-card {
  background: #fff;
  border-radius: var(--radius-lg, 12px);
  padding: 1.75rem;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  border: 1px solid rgba(0,0,0,0.04);
}

.bia-cap-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.08);
}

.bia-cap-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, #e8f6f3 0%, #d4edeb 100%);
  color: var(--color-primary, #1abc9c);
  font-size: 1.2rem;
  border-radius: 10px;
  margin-bottom: 1rem;
}

.bia-cap-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-dark, #2c3e50);
  margin: 0 0 0.5rem;
}

.bia-cap-desc {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--color-text-muted, #6c757d);
  margin: 0;
}

/* ---------- Section 4 – Data Flow Architecture ---------- */
.bia-flow {
  padding: clamp(56px, 8vw, 80px) 0;
  background: #fff;
}

.bia-flow-title {
  font-size: clamp(1.35rem, 2vw, 1.55rem);
  font-weight: 700;
  color: var(--color-dark, #2c3e50);
  margin: 0 0 0.5rem;
}

.bia-flow-text {
  font-size: 1rem;
  color: var(--color-text-muted, #6c757d);
  margin: 0 0 2rem;
}

.bia-flow-diagram {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0 0.5rem;
}

.bia-flow-node {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  background: var(--color-bg-light, #f7f9fb);
  border: 1px solid rgba(26, 188, 156, 0.25);
  border-radius: var(--radius, 8px);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-dark, #2c3e50);
}

.bia-flow-node:nth-child(5) {
  background: linear-gradient(145deg, #1abc9c 0%, #16a085 100%);
  color: #fff;
  border-color: transparent;
}

.bia-flow-connector {
  display: inline-block;
  width: 20px;
  height: 2px;
  background: linear-gradient(90deg, #c5d0d4, var(--color-primary, #1abc9c));
  flex-shrink: 0;
}

/* ---------- Section 5 – Enterprise Impact ---------- */
.bia-impact {
  padding: clamp(56px, 8vw, 80px) 0;
  background: var(--color-bg-light, #f7f9fb);
}

.bia-impact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.bia-impact-block {
  padding: 1.75rem;
  background: #fff;
  border-radius: var(--radius-lg, 12px);
  border-left: 4px solid var(--color-primary, #1abc9c);
  box-shadow: 0 2px 10px rgba(0,0,0,0.04);
}

.bia-impact-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-dark, #2c3e50);
  margin: 0 0 0.5rem;
}

.bia-impact-text {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--color-text-muted, #6c757d);
  margin: 0;
}

/* ---------- Section 6 – Governance & Data Security ---------- */
.bia-governance {
  padding: clamp(56px, 8vw, 80px) 0;
  background: #fff;
}

.bia-governance-title {
  font-size: clamp(1.3rem, 2vw, 1.5rem);
  font-weight: 700;
  color: var(--color-dark, #2c3e50);
  margin: 0 0 1.25rem;
}

.bia-governance-list {
  margin: 0;
  padding: 0 0 0 1.25rem;
  color: var(--color-dark-soft, #3d566e);
  font-size: 0.95rem;
  line-height: 1.8;
  max-width: 560px;
}

.bia-governance-list li {
  margin-bottom: 0.5rem;
}

/* ---------- Section 7 – CTA ---------- */
.bia-cta {
  padding: clamp(64px, 10vw, 96px) 0;
  background: linear-gradient(180deg, #1a2e35 0%, #0d3f4a 100%);
  color: #fff;
}

.bia-cta-inner {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.bia-cta-title {
  font-size: clamp(1.45rem, 2.4vw, 1.9rem);
  font-weight: 700;
  margin: 0 0 2rem;
  color: #fff;
}

.bia-cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.bia-cta-secondary {
  color: #fff;
  border-color: rgba(255,255,255,0.5);
  background: transparent;
}

.bia-cta-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
  color: #fff;
  text-decoration: none;
}

/* ---------- Responsive ---------- */
@media (max-width: 992px) {
  .bia-challenge-inner {
    grid-template-columns: 1fr;
  }

  .bia-challenge-visual {
    order: -1;
    min-height: 200px;
  }

  .bia-cap-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .bia-impact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .bia-hero-badges {
    flex-direction: column;
    gap: 0.5rem;
  }

  .bia-flow-diagram {
    flex-direction: column;
    gap: 0.75rem;
  }

  .bia-flow-connector {
    width: 2px;
    height: 14px;
    background: linear-gradient(180deg, transparent, var(--color-primary));
  }

  .bia-cap-grid {
    grid-template-columns: 1fr;
  }

  .bia-cta-buttons {
    flex-direction: column;
  }

  .bia-cta-buttons .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .bia-challenge-placeholder {
    min-height: 180px;
  }
}