.dob-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.55);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.dob-modal {
  background: #fff;
  width: 360px;
  border-radius: 22px;
  box-shadow: 0 30px 70px rgba(0,0,0,.35);
  font-family: system-ui, -apple-system, BlinkMacSystemFont;
  overflow: hidden;
}

/* Header */
.dob-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  border-bottom: 1px solid #eee;
}

.dob-header button {
  background: none;
  border: none;
  font-weight: 600;
  color: #2563eb;
  cursor: pointer;
}

.dob-picker {
  position: relative;
  display: flex;
  gap: 10px;
  padding: 18px;
}

.dob-column {
  flex: 1;
  height: 200px;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: #f8fafc;
  border-radius: 14px;
  scrollbar-width: none;
}

.dob-column::-webkit-scrollbar { display: none; }

.dob-track {
  padding: 80px 0;
}

.dob-item {
  height: 40px;
  line-height: 40px;
  text-align: center;
  font-size: 14px;
  color: #64748b;
  cursor: pointer;
  transition: all .3s linear;
}

.dob-item.active {
  font-weight: 700;
  color: #0f172a;
  font-size: 15px;
}

/* Center highlight */
.dob-highlight {
  position: absolute;
  left: 18px;
  right: 18px;
  top: 50%;
  height: 40px;
  margin-top: -20px;
  border-radius: 10px;
  background: rgba(37,99,235,.12);
  pointer-events: none;
}