/* ============================================
   FETALMED — Calculadora Síndrome de Down CSS
   calc-down.css — Específico desta calculadora
   ============================================ */

/* === CARD PRINCIPAL === */
#calc-card {
  padding: var(--space-lg);
}

/* === TOGGLE MODO APENAS IDADE === */
.down-mode-toggle {
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg, #f8fafc);
  border-bottom: 1px solid var(--color-border);
  margin: calc(-1 * var(--space-lg)) calc(-1 * var(--space-lg)) var(--space-lg);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.down-mode-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-mid);
  cursor: pointer;
  user-select: none;
}

.down-mode-label input {
  display: none;
}

.down-mode-switch {
  position: relative;
  width: 36px;
  height: 20px;
  background: var(--color-border);
  border-radius: 10px;
  transition: background .2s;
  flex-shrink: 0;
}

.down-mode-switch::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: #fff;
  border-radius: 50%;
  transition: transform .2s;
  box-shadow: 0 1px 3px rgba(0,0,0,.15);
}

.down-mode-label input:checked + .down-mode-switch {
  background: var(--color-primary);
}

.down-mode-label input:checked + .down-mode-switch::after {
  transform: translateX(16px);
}

/* === DISPLAY IDADE === */
.down-idade-display {
  padding: 8px 14px;
  background: var(--teal-50, #ecfeff);
  border: 1px solid var(--teal-100, #cffafe);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--color-text-mid);
  margin-bottom: var(--space-md);
}

.down-idade-display strong {
  color: var(--color-primary);
  font-weight: 600;
}

/* === INPUT COM UNIDADE === */
.down-input-unit {
  display: flex;
  align-items: center;
  gap: 8px;
}

.down-input-unit input {
  flex: 1;
  max-width: 160px;
  font-size: 15px;
  padding: 13px 16px;
}

.down-unit {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-light);
}

/* === RADIO GROUP === */
.down-radio-group {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-xs);
}

.down-radio {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: 14px;
  color: var(--color-text-mid);
}

.down-radio input {
  accent-color: var(--color-primary);
  width: 16px;
  height: 16px;
}

/* === MODAL TERMO === */
.down-modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,.5);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn .2s;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.down-modal {
  background: #fff;
  border-radius: var(--radius-lg, 16px);
  max-width: 520px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(0,0,0,.2);
  overflow: hidden;
  animation: slideUp .25s ease;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.down-modal-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 24px 0;
}

.down-modal-header h3 {
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text-strong);
  margin: 0;
}

.down-modal-body {
  padding: 16px 24px;
}

.down-modal-body p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-mid);
  margin-bottom: var(--space-sm);
}

.down-modal-body ul {
  padding-left: 20px;
  margin: var(--space-sm) 0;
}

.down-modal-body li {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-mid);
  margin-bottom: 6px;
}

.down-modal-body strong {
  color: var(--color-text-strong);
}

.down-modal-footer {
  display: flex;
  gap: var(--space-sm);
  justify-content: flex-end;
  padding: 16px 24px;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg, #f8fafc);
}

.down-modal-btn {
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s;
}

.down-modal-btn.secondary {
  background: none;
  color: var(--color-text-light);
}

.down-modal-btn.secondary:hover {
  color: var(--color-text-strong);
}

.down-modal-btn.primary {
  background: var(--color-primary);
  color: #fff;
}

.down-modal-btn.primary:hover {
  background: #0c6577;
}

/* === RESULTADO === */
.down-result-block {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.down-result-block:last-of-type {
  border-bottom: none;
}

.down-result-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-light);
  margin-bottom: 6px;
}

.down-result-value {
  font-size: 18px;
  font-weight: 300;
  color: var(--color-text-mid);
}

.down-result-num {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text-strong);
}

/* === DETALHES === */
.down-details {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg, #f8fafc);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.down-detail-item {
  flex: 1;
  text-align: center;
}

.down-detail-label {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text-light);
  margin-bottom: 4px;
}

.down-detail-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-strong);
}

/* === BARRA DE RISCO === */
.down-risk-bar-wrapper {
  padding: var(--space-lg);
  position: relative;
}

.down-risk-bar {
  display: flex;
  border-radius: 8px;
  overflow: hidden;
  height: 36px;
}

.down-risk-zone {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .03em;
  text-transform: uppercase;
  color: #fff;
}

.down-risk-zone.low {
  /* 27% da barra (escala log: < 1/1000) */
  flex: 27;
  background: linear-gradient(90deg, #16a34a, #22c55e);
}

.down-risk-zone.intermediate {
  flex: 27;
  background: linear-gradient(90deg, #eab308, #f59e0b);
}

.down-risk-zone.high {
  flex: 46;
  background: linear-gradient(90deg, #ef4444, #dc2626);
}

.down-risk-labels {
  display: flex;
  margin-top: 6px;
}

.down-risk-labels span {
  font-size: 10px;
  color: var(--color-text-light);
  text-align: center;
}

.down-risk-labels span:nth-child(1) { flex: 2; text-align: left; }
.down-risk-labels span:nth-child(2) { flex: 1.5; }
.down-risk-labels span:nth-child(3) { flex: 1; text-align: right; }

/* Marcador */
.down-risk-marker {
  position: absolute;
  top: 8px;
  transform: translateX(-50%);
}

.down-risk-marker-line {
  width: 2px;
  height: 52px;
  background: var(--color-text-strong);
  margin: 0 auto;
}

.down-risk-marker-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-text-strong);
  text-align: center;
  white-space: nowrap;
  margin-top: 2px;
  background: var(--color-text-strong);
  color: #fff;
  padding: 2px 8px;
  border-radius: 4px;
}

/* === CONTENT TEXT BASE (shared patterns) === */
.down-content {
  margin-top: var(--space-2xl);
}

.down-content .ct-section {
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.down-content .ct-section:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.down-content h2 {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text-strong);
  margin: 0 0 var(--space-md);
  line-height: 1.35;
}

.down-content p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-mid);
  margin-bottom: var(--space-md);
}

.down-content p:last-child {
  margin-bottom: 0;
}

.down-content a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}

.down-content a:hover {
  color: #0c6577;
  text-decoration: underline;
}

/* Tip box */
.down-content .ct-tip {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: var(--space-md);
  background: linear-gradient(135deg, var(--teal-50, #ecfeff), #f0fdfa);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-top: var(--space-lg);
}

.down-content .ct-tip > svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  margin-top: 2px;
}

.down-content .ct-tip p {
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
}

/* Reference card (same as tabref-reference) */
.tabref-reference {
  padding: 16px 20px;
  background: #f8fafc;
  border: 0.5px solid var(--color-border);
  border-radius: 12px;
  margin: 24px 0;
}

.tabref-reference-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--color-text-light);
  margin-bottom: 6px;
}

.tabref-reference-text {
  font-size: 13px;
  color: var(--color-text-mid);
  line-height: 1.6;
}

.tabref-reference-text em {
  font-style: italic;
}

.tabref-reference-text ol li {
  margin-bottom: 6px;
}

/* === CONTEÚDO TEXTUAL — COMPONENTES === */

/* Concepts (basal vs corrigido) */
.down-concepts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.down-concept {
  padding: var(--space-lg);
  background: var(--color-bg, #f8fafc);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.down-concept p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-mid);
  margin-bottom: var(--space-sm);
}

.down-concept p:last-child {
  margin-bottom: 0;
}

.down-concept-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: var(--space-md);
}

.down-concept-header svg {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.down-concept-header.basal svg { color: var(--color-text-light); }
.down-concept-header.corrigido svg { color: var(--color-primary); }

.down-concept-header h3 {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text-strong);
  margin: 0;
}

/* Age examples mini-grid */
.down-age-examples {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  margin-top: var(--space-md);
}

.down-age-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 8px 4px;
  background: #fff;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.down-age-num {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-strong);
}

.down-age-risk {
  font-size: 10px;
  color: var(--color-text-light);
  text-align: center;
}

/* Cutoff cards */
.down-cutoffs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.down-cutoff {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border-left: 4px solid;
}

.down-cutoff.alto {
  background: #fef2f2;
  border-color: #dc2626;
}

.down-cutoff.intermediario {
  background: #fffbeb;
  border-color: #f59e0b;
}

.down-cutoff.baixo {
  background: #f0fdf4;
  border-color: #22c55e;
}

.down-cutoff-badge {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: 4px;
}

.down-cutoff.alto .down-cutoff-badge { color: #dc2626; }
.down-cutoff.intermediario .down-cutoff-badge { color: #b45309; }
.down-cutoff.baixo .down-cutoff-badge { color: #16a34a; }

.down-cutoff-range {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text-strong);
  margin-bottom: var(--space-sm);
}

.down-cutoff p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-mid);
  margin: 0;
}

/* === RESPONSIVO === */
@media (max-width: 640px) {
  .down-concepts {
    grid-template-columns: 1fr;
  }
  .down-cutoffs {
    grid-template-columns: 1fr;
  }
  .down-age-examples {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .down-details {
    flex-direction: column;
    gap: var(--space-sm);
  }
  .down-detail-item {
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .down-result-num {
    font-size: 24px;
  }
  .down-risk-zone {
    font-size: 9px;
  }
  .down-modal {
    margin: 10px;
  }
}