/* ═══════════════════════════════════════════════
   L A CABRAL — /diagnostico
   Aditivo a styles.css: reaproveita tokens (:root),
   .header/.brand/.lang-switch/.btn/.tag/.check já
   existentes. Nada aqui redefine ou sobrescreve
   regras das outras páginas.
   ═══════════════════════════════════════════════ */

.diag {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-top: 140px;
  padding-bottom: 64px;
}

.diag__shell {
  max-width: 640px;
  width: 100%;
  margin: 0 auto;
  flex: 1;
}

.diag-panel[hidden] { display: none; }

/* Presente só para leitores de tela navegarem por heading level-1 em toda
   etapa do fluxo — a pergunta usa <legend> (não <h1>) porque é isso que
   associa o título ao fieldset de opções para tecnologia assistiva. */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── loading / fatal ──────────────────────────── */
.diag-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 40vh;
  color: var(--text-2);
  font-size: 15px;
}

.diag-fatal {
  text-align: center;
  max-width: 480px;
  margin: 40px auto;
}
.diag-fatal h1 { margin-bottom: 14px; }
.diag-fatal p { color: var(--text-2); font-size: 16px; line-height: 1.6; margin-bottom: 28px; }
.diag-fatal__actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }

/* ── intro ────────────────────────────────────── */
.diag-intro { max-width: 560px; margin: 0 auto; }
.diag-intro h1 { margin-bottom: 16px; }
.diag-intro > p { color: var(--text-2); font-size: 17px; line-height: 1.7; margin-bottom: 24px; }

.diag-intro__points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}
.diag-intro__points li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.5;
}
.diag-intro__points .check { margin-top: 2px; }

.diag-intro__note {
  font-size: 13px;
  color: var(--text-3);
  margin-bottom: 32px;
  line-height: 1.6;
}

/* ── progress ─────────────────────────────────── */
.diag-progress { margin-bottom: 32px; }
.diag-progress__bar {
  height: 6px;
  border-radius: var(--r-pill);
  background: var(--surface-2);
  overflow: hidden;
  margin-bottom: 10px;
}
.diag-progress__fill {
  height: 100%;
  background: var(--green);
  border-radius: var(--r-pill);
  width: 0%;
  transition: width var(--t) var(--ease);
}
.diag-progress__label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-3);
  letter-spacing: 0.02em;
}

/* ── question ─────────────────────────────────── */
.diag-question__fieldset { border: none; padding: 0; margin: 0; }
.diag-question__legend {
  display: block;
  width: 100%;
  font-size: clamp(21px, 3vw, 27px);
  font-weight: 600;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 8px;
  padding: 0;
}
.diag-question__legend:focus-visible { outline: none; } /* foco é gerenciado por leitura de tela; sem realce visual redundante num heading grande */
.diag-question__help {
  color: var(--text-3);
  font-size: 14px;
  margin-bottom: 20px;
}
.diag-question__help[hidden] { display: none; }

.diag-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 12px;
}

.diag-option {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 18px;
  border-radius: var(--r-md);
  background: var(--surface);
  border: 1px solid var(--border-light);
  cursor: pointer;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
}
.diag-option:hover { border-color: var(--green-border); }
.diag-option.is-selected {
  background: var(--green-dim);
  border-color: var(--green-border);
}

/* Input real, acessível por teclado/leitor de tela — visualmente
   escondido sem sair da árvore de acessibilidade (nunca display:none). */
.diag-option__input {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.diag-option__box {
  flex-shrink: 0;
  width: 20px; height: 20px;
  border-radius: 50%;
  border: 1.5px solid var(--border-light);
  background: transparent;
  position: relative;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
}
/* checkbox (multi-select) fica quadrado com cantos suaves — distingue
   visualmente de single-select sem depender só de cor. */
input[type="checkbox"].diag-option__input ~ .diag-option__box { border-radius: 6px; }

.diag-option.is-selected .diag-option__box {
  border-color: var(--green);
  background: var(--green);
}
.diag-option.is-selected .diag-option__box::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
}
input[type="radio"].diag-option__input:checked ~ .diag-option__box::after {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #08150F;
}
input[type="checkbox"].diag-option__input:checked ~ .diag-option__box::after {
  width: 11px; height: 7px;
  border-left: 2px solid #08150F;
  border-bottom: 2px solid #08150F;
  transform: translateY(-1px) rotate(-45deg);
}

.diag-option__input:focus-visible ~ .diag-option__box {
  outline: 2px solid var(--green-light);
  outline-offset: 3px;
}

.diag-option__text {
  font-size: 15px;
  color: var(--text);
  line-height: 1.4;
}

.diag-options-hint {
  font-size: 13px;
  color: var(--text-3);
  margin-bottom: 16px;
}
.diag-options-hint[hidden] { display: none; }

/* ── navegação entre etapas ───────────────────── */
.diag-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 24px;
}
.diag-nav .btn--primary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
.diag-nav .btn--primary:disabled:hover {
  background: var(--green);
  transform: none;
  box-shadow: none;
}
.diag-nav button[hidden] { display: none; }

/* ── identity ─────────────────────────────────── */
.diag-identity h1 { margin-bottom: 12px; }
.diag-identity > p { color: var(--text-2); font-size: 16px; line-height: 1.65; margin-bottom: 28px; }

.diag-field { margin-bottom: 18px; }
.diag-field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: 7px;
}
.diag-field input {
  width: 100%;
  padding: 13px 16px;
  font-size: 15px;
  font-family: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--r-sm);
  transition: border-color var(--t) var(--ease);
}
.diag-field input::placeholder { color: var(--text-3); }
.diag-field input:focus-visible {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-dim);
}
.diag-field input[aria-invalid="true"] {
  border-color: #F87171;
}
.diag-field__hint {
  font-size: 12px;
  color: var(--text-3);
  margin-top: 6px;
}
.diag-field__error {
  font-size: 13px;
  color: #FCA5A5;
  margin-top: 6px;
}
.diag-field__error[hidden] { display: none; }

.diag-submit-error {
  padding: 16px 18px;
  border-radius: var(--r-md);
  background: rgba(248, 113, 113, 0.08);
  border: 1px solid rgba(248, 113, 113, 0.28);
  margin: 4px 0 20px;
}
.diag-submit-error[hidden] { display: none; }
.diag-submit-error p {
  font-size: 14px;
  color: var(--text);
  line-height: 1.55;
  margin-bottom: 10px;
}
.diag-submit-error button[hidden] { display: none; }

/* ── resultado ────────────────────────────────── */
.diag-result { max-width: 560px; margin: 0 auto; }
.diag-result h1 { margin-bottom: 16px; }
.diag-result > p { color: var(--text-2); font-size: 17px; line-height: 1.72; margin-bottom: 16px; }
.diag-result__next {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.65;
  padding: 16px 18px;
  border-radius: var(--r-md);
  background: var(--surface);
  border: 1px solid var(--border-light);
  margin-bottom: 28px;
}
.diag-result__next[hidden] { display: none; }
.diag-result__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ── rodapé mínimo ────────────────────────────── */
.diag-footer {
  border-top: 1px solid var(--border);
  padding: 20px 0;
}
.diag-footer p {
  font-size: 12px;
  color: var(--text-3);
  text-align: center;
}

/* ── acessibilidade / movimento ───────────────── */
@media (prefers-reduced-motion: reduce) {
  .diag-progress__fill,
  .diag-option,
  .diag-field input,
  .btn {
    transition: none !important;
  }
}

/* ── responsivo ───────────────────────────────── */
@media (max-width: 680px) {
  .diag { padding-top: 100px; padding-bottom: 40px; }
  .diag__shell { padding: 0 4px; }
  .diag-nav { flex-direction: column-reverse; align-items: stretch; }
  .diag-nav button { width: 100%; }
  .diag-result__actions { flex-direction: column; }
  .diag-result__actions .btn { width: 100%; }
  .diag-fatal__actions { flex-direction: column; }
  .diag-fatal__actions .btn { width: 100%; }
}