.calc-picker-modal, .calc-form-modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.calc-picker-modal.open, .calc-form-modal.open { display: flex; }

.calc-picker, .calc-form {
  background: #fff;
  width: min(560px, 92vw);
  max-height: 90vh;
  overflow-y: auto;
  border-radius: 8px;
  padding: 20px 24px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.25);
}

.calc-picker h3, .calc-form h3 { margin: 0 0 12px 0; font-size: 1.15rem; }

.calc-picker-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.calc-picker-card {
  padding: 12px;
  border: 1px solid #d4d8dc;
  border-radius: 6px;
  cursor: pointer;
  text-align: left;
  background: #fff;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.calc-picker-card:hover { border-color: #1a5632; box-shadow: 0 2px 8px rgba(26,86,50,0.12); }
.calc-picker-card .name { font-weight: 600; font-size: 0.95rem; }
.calc-picker-card .ref  { font-size: 0.75rem; color: #5a6975; margin-top: 4px; }
.calc-picker-card .beta-tag {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 10px;
  background: #f4ecdb;
  color: #7a4d1f;
  font-size: 0.65rem;
  font-weight: 600;
  margin-left: 6px;
  vertical-align: middle;
}

.calc-form .calc-field {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 12px;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid #eef0f2;
}
.calc-form .calc-field label { font-size: 0.9rem; }
.calc-form .calc-field input { width: 140px; padding: 6px 8px; border: 1px solid #d4d8dc; border-radius: 4px; }
.calc-form .calc-field .unit { font-size: 0.8rem; color: #5a6975; }

.calc-form .calc-assumption { padding: 8px 0; border-bottom: 1px solid #eef0f2; }
.calc-form .calc-assumption-head { display: flex; justify-content: space-between; align-items: center; }
.calc-form .calc-assumption .source { font-size: 0.7rem; color: #5a6975; }
.calc-form .calc-assumption button.override-btn {
  background: none; border: none; color: #1a5632; font-size: 0.75rem; cursor: pointer; text-decoration: underline;
}
.calc-form .override-box { margin-top: 6px; padding: 8px; background: #f5f7fa; border-radius: 4px; }
.calc-form .override-box textarea { width: 100%; min-height: 44px; font-size: 0.85rem; padding: 4px 6px; }

.calc-result-panel {
  margin-top: 16px;
  padding: 12px 14px;
  background: #e8f0ec;
  border-left: 3px solid #1a5632;
  border-radius: 4px;
}
.calc-result-panel h4 { margin: 0 0 8px; font-size: 0.95rem; }
.calc-result-panel .row { display: flex; justify-content: space-between; padding: 3px 0; font-size: 0.9rem; }

.calc-form-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }