/* ═══════════════════════════════════════════════════════════════
   AI-INNOVATION.CSS — ARevum
   Consultancy positioning — rebuilt
═══════════════════════════════════════════════════════════════ */

/* ── Section wrappers ── */
.aisec         { padding: 88px 0; }
.aisec--white  { background: #ffffff; }
.aisec--grey   { background: var(--bg); }
.aisec--brand  { background: var(--brand); }

/* ── Shared typography ── */
.sec-eyebrow {
  display: block;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brand-light);
  margin-bottom: 12px;
}

.sec-heading {
  font-family: var(--font-head);
  font-size: clamp(1.55rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--brand);
  line-height: 1.2;
  margin-bottom: 0;
}

.sec-rule {
  width: 44px;
  height: 3px;
  background: var(--gold);
  border-radius: 2px;
  margin-top: 20px;
}

.sec-lead {
  font-size: 0.975rem;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 580px;
  margin: 0 auto;
}

.sec-head {
  text-align: center;
  margin-bottom: 56px;
}

.sec-head .sec-heading {
  margin-top: 8px;
  margin-bottom: 16px;
}

.intro-copy {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.85;
  margin: 0;
}

/* ── Hero ── */
.ai-page-hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  padding-bottom: 72px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
}

.ai-hero-img {
  position: absolute;
  inset: 0;
  background: var(--brand);
  background-image: url('../images/ai_innovation/ai_innovation.webp');
  background-size: cover;
  background-position: center top;
  transform: scale(1.04);
  transition: transform 6s ease;
}

.ai-page-hero.loaded .ai-hero-img {
  transform: scale(1);
}

.ai-hero-vignette {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    rgba(6, 18, 26, 0.88) 0%,
    rgba(10, 30, 44, 0.65) 55%,
    rgba(10, 30, 44, 0.35) 100%
  );
}

.ai-hero-inner {
  position: relative;
  z-index: 2;
  padding-top: calc(var(--nav-h) + 64px);
}

.ai-hero-tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brand);
  background: var(--gold);
  padding: 5px 14px;
  border-radius: 3px;
  margin-bottom: 20px;
}

.ai-hero-heading {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}

.ai-hero-lead {
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 1.8vw, 1.05rem);
  font-weight: 300;
  color: rgba(255,255,255,0.72);
  line-height: 1.7;
  max-width: 520px;
  margin: 0;
}

/* ── Approach band ── */
.approach-band {
  background: var(--brand);
  border-top: 1px solid rgba(255,255,255,0.08);
  border-bottom: 3px solid var(--gold);
  padding: 28px 0;
}

.approach-band-text {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 300;
  color: rgba(255,255,255,0.75);
  text-align: center;
  letter-spacing: 0.02em;
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.65;
}

/* ── Consultancy cards ── */
.ai-consult-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.ai-consult-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.3s;
}

.ai-consult-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.ai-consult-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(15,45,60,0.09);
  border-color: rgba(15,45,60,0.18);
}

.ai-consult-card:hover::after { transform: scaleX(1); }

.ai-consult-num {
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  color: rgba(15,45,60,0.2);
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.ai-consult-icon {
  width: 52px;
  height: 52px;
  background: rgba(15,45,60,0.06);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand);
  margin-bottom: 20px;
}

.ai-consult-title {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--brand);
  margin-bottom: 12px;
  line-height: 1.3;
}

.ai-consult-body {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 20px;
}

.ai-consult-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.ai-consult-list li {
  font-size: 0.82rem;
  color: var(--text-muted);
  padding: 5px 0 5px 16px;
  position: relative;
  line-height: 1.5;
}

.ai-consult-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  width: 5px;
  height: 5px;
  background: var(--gold);
  border-radius: 50%;
}

/* ── Engagement steps ── */
.ai-engagement-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.ai-step {
  display: flex;
  gap: 28px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}

.ai-step.last { border-bottom: none; }

.ai-step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--brand);
  color: #ffffff;
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 4px;
}

.ai-step-title {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  color: var(--brand);
  margin-bottom: 8px;
  line-height: 1.25;
}

.ai-step-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin: 0;
}

/* ── Why independent section ── */
.ai-why-wrap {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.08);
}

.ai-why-left {
  background: rgba(255,255,255,0.04);
  border-right: 1px solid rgba(255,255,255,0.08);
  padding: 52px 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.ai-why-heading {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.2;
  margin: 12px 0 16px;
}

.ai-why-sub {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
  margin: 0;
}

.ai-why-points {
  display: flex;
  flex-direction: column;
}

.ai-why-point {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 32px 40px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  transition: background 0.25s;
}

.ai-why-point:last-child { border-bottom: none; }
.ai-why-point:hover { background: rgba(255,255,255,0.03); }

.ai-why-point-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(201,168,76,0.15);
  border: 1px solid rgba(201,168,76,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  flex-shrink: 0;
  margin-top: 2px;
}

.ai-why-point-title {
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
  line-height: 1.3;
}

.ai-why-point-desc {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.75;
  margin: 0;
}

/* ── Page CTA ── */
.page-cta {
  background: var(--brand);
  border-radius: var(--radius);
  padding: 56px 52px;
}

.page-cta-heading {
  font-family: var(--font-head);
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  color: #ffffff;
  margin-bottom: 12px;
  margin-top: 8px;
}

.page-cta-body {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.68);
  line-height: 1.75;
  margin: 0;
}

/* ── Responsive ── */
@media (max-width: 991px) {
  .ai-consult-grid { grid-template-columns: 1fr; }
  .ai-why-wrap { grid-template-columns: 1fr; }
  .ai-why-left {
    border-right: none;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    padding: 40px 32px;
  }
  .ai-why-point { padding: 28px 32px; }
  .page-cta { padding: 40px 32px; }
}

@media (max-width: 767px) {
  .aisec { padding: 64px 0; }
  .ai-step { gap: 18px; }
  .ai-step-num { width: 40px; height: 40px; font-size: 0.85rem; }
  .ai-why-left { padding: 32px 24px; }
  .ai-why-point { padding: 24px; }
  .page-cta { padding: 32px 24px; }
  .approach-band-text { font-size: 0.9rem; }
}