/* ============================================================
   APPROACH.CSS — Pinned note-card process grid
   ============================================================ */

.pin-process-section {
  position: relative;
  background-image: repeating-linear-gradient(
    to bottom,
    var(--color-border) 0,
    var(--color-border) 1px,
    transparent 1px,
    transparent 42px
  );
  background-position: 0 120px;
  overflow: hidden;
}

.pin-process-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 56px 40px;
  max-width: 920px;
  margin: 0 auto;
  padding-top: 12px;
}

.pin-process-grid .pin-card:nth-child(2n) {
  margin-top: 48px;
}

.pin-card {
  position: relative;
  border-radius: 16px;
  padding: 28px 26px 24px;
  box-shadow: 0 12px 28px rgba(26, 31, 28, 0.1);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

.pin-card:nth-child(4n+1) { transform: rotate(-2.2deg); }
.pin-card:nth-child(4n+2) { transform: rotate(1.6deg); }
.pin-card:nth-child(4n+3) { transform: rotate(1.2deg); }
.pin-card:nth-child(4n+4) { transform: rotate(-1.8deg); }

.pin-card:hover {
  transform: rotate(0deg) translateY(-4px);
  box-shadow: 0 20px 40px rgba(26, 31, 28, 0.16);
}

.pin-icon {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  filter: drop-shadow(0 3px 4px rgba(0, 0, 0, 0.25));
}

.pin-num {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: 500;
  font-style: italic;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

.pin-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 10px;
}

.pin-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.65;
}

.pin-duration {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.6);
}

/* ── Colour variants ─────────────────────────────────────── */
.pin-a { background: var(--color-accent-subtle); border: 1px solid var(--color-border-accent); }
.pin-a .pin-icon,
.pin-a .pin-num,
.pin-a .pin-duration { color: var(--color-accent-dark); }

.pin-b { background: var(--color-violet-subtle); border: 1px solid var(--color-border-violet); }
.pin-b .pin-icon,
.pin-b .pin-num,
.pin-b .pin-duration { color: var(--color-violet); }

.pin-c { background: var(--color-blue-subtle); border: 1px solid rgba(71, 156, 207, 0.3); }
.pin-c .pin-icon,
.pin-c .pin-num,
.pin-c .pin-duration { color: var(--color-blue); }

@media (max-width: 767px) {
  .pin-process-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .pin-process-grid .pin-card:nth-child(2n) { margin-top: 0; }
  .pin-card,
  .pin-card:hover { transform: none; }
}