/* =============================================================
   components.css — Reusable UI components
   Depends on styles/tokens.css and styles/base.css
   ============================================================= */

/* ================================================================
   Button
   ================================================================
   Base class + modifiers:
     .btn                  base layout (required on every button)
     .btn-primary          solid red CTA (canonical brand button)
     .btn-primary-glow     primary + pulsating halo around the edges
     .btn-sm / .btn-md / .btn-lg   size modifiers (default is md)

   Markup:
     <button class="btn btn-primary btn-lg">Acessar Playbook</button>
     <a     class="btn btn-primary-glow btn-md" href="#">...</a>
   ================================================================ */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: var(--ls-button);
  text-decoration: none;
  white-space: nowrap;
  border-radius: var(--radius-md);
  border: 0;
  cursor: pointer;
  transition:
    filter         var(--transition-base) var(--ease-out),
    transform      var(--transition-base) var(--ease-out),
    box-shadow     var(--transition-base) var(--ease-out),
    background     var(--transition-base) var(--ease-out);
  isolation: isolate; /* needed for primary-glow ::before z-index */
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.5;
  pointer-events: none;
}

.btn-sm { padding: 16px 32px; font-size: 13px; }
.btn-md { padding: 20px 72px; font-size: 15px; }
.btn-lg { padding: 24px 88px; font-size: 17px; }

/* Primary — solid red CTA */
.btn-primary {
  background: var(--brand-red);
  color: var(--brand-white);
  box-shadow: var(--elevation-button);
}

.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
  box-shadow: var(--shadow-brand-md);
}

.btn-primary:active {
  transform: translateY(0);
  filter: brightness(0.95);
}

/* Primary-glow — primary + pulsating brand-red halo behind */
.btn-primary-glow {
  background: var(--brand-red);
  color: var(--brand-white);
  box-shadow: var(--elevation-button);
}

.btn-primary-glow::before {
  content: '';
  position: absolute;
  inset: -8px;
  background: var(--brand-red);
  filter: blur(24px);
  opacity: 0.5;
  border-radius: inherit;
  z-index: -1;
  animation: btn-pulse-glow 3s ease-in-out infinite;
  pointer-events: none;
}

.btn-primary-glow:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
  box-shadow: var(--shadow-brand-md);
}

.btn-primary-glow:active {
  transform: translateY(0);
  filter: brightness(0.95);
}

/* Ghost — transparent with outline, used for secondary actions */
.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

.btn-ghost:hover {
  background: var(--surface-elevated);
  border-color: rgba(255, 255, 255, 0.25);
  filter: none;
  transform: none;
}

.btn-ghost:active {
  background: rgba(255, 255, 255, 0.08);
}

@keyframes btn-pulse-glow {
  0%, 100% { opacity: 0.4; }
  50%      { opacity: 0.65; }
}

@media (prefers-reduced-motion: reduce) {
  .btn-primary-glow::before { animation: none; opacity: 0.4; }
}

@media (max-width: 480px) {
  .btn-md, .btn-lg { width: 100%; padding-left: var(--space-6); padding-right: var(--space-6); }
  /* Buttons inside .form-actions must stay side-by-side — opt them
     out of the full-width mobile rule above. */
  .form-actions .btn { width: auto; padding-left: 18px; padding-right: 18px; }
}

/* Mobile form/modal densification — goal: step-2 inteiro cabe sem
   scroll vertical quando o teclado virtual NAO esta aberto. */
@media (max-width: 768px) {
  .modal {
    padding: var(--space-5);
    border-radius: var(--radius-lg);
  }
  .form, .form-step { gap: 8px; }
  .form-field { gap: 4px; }
  .form-field label {
    font-size: 0.68rem;
    letter-spacing: 0.08em;
  }
  .form-field input,
  .form-field select {
    padding: 9px 12px;
    font-size: 15px;
  }
  .form-step-sub { font-size: 0.75rem; }
  .form-progress-label {
    margin-bottom: var(--space-3);
    font-size: 0.68rem;
  }
  .form-actions { margin-top: 4px; }
  .form-actions .btn { padding: 13px 14px; font-size: 12.5px; }
  .form-card { padding: 10px 10px; }
  .form-card-title { font-size: 0.82rem; }
  .form-card-check { width: 18px; height: 18px; }
  .scarcity-badge { font-size: 0.72rem; padding: 6px 10px; }
  .trust-row { font-size: 0.7rem; gap: 8px var(--space-3); }
  .info-block { padding: var(--space-3); }
  .info-block-title { font-size: 0.82rem; }
  .info-block-text { font-size: 0.76rem; }
}

/* ================================================================
   Glass card
   ================================================================
   Transparent card with subtle border + backdrop-blur for dark
   surfaces (FAQ items, stats, hero badges).

   Markup:
     <article class="glass-card">...</article>
   ================================================================ */
.glass-card {
  background: var(--surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition:
    background   var(--transition-base) var(--ease-out),
    border-color var(--transition-base) var(--ease-out),
    transform    var(--transition-base) var(--ease-out);
}

.glass-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.22);
}

/* ================================================================
   Badge
   ================================================================
   Small pill for tags / categories / labels.

   Markup:
     <span class="badge">Gratuito</span>
     <span class="badge badge-solid">Novo</span>
   ================================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 12px;
  font-family: var(--font-body);
  font-size: var(--fs-caption);
  font-weight: var(--fw-semibold);
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: var(--ls-caption);
  border-radius: var(--radius-full);
  background: rgba(254, 6, 59, 0.12);
  color: var(--brand-red);
  border: 1px solid rgba(254, 6, 59, 0.3);
}

.badge-solid {
  background: var(--brand-red);
  color: var(--brand-white);
  border-color: transparent;
}

/* ================================================================
   Modal — backdrop + panel
   ================================================================
   CSS-only visibility via [data-open="true"]. Scripts/form.js will
   toggle the attribute in Fase 4. Without the attribute the modal
   stays hidden.

   Markup:
     <div class="modal-backdrop" data-open="true" role="dialog" aria-modal="true" aria-labelledby="modal-title">
       <div class="modal">
         <button class="modal-close" aria-label="Fechar">×</button>
         <h2 id="modal-title">Título</h2>
         ...
       </div>
     </div>
   ================================================================ */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  z-index: 1000;
  opacity: 0;
  transition: opacity var(--transition-base) var(--ease-out);
}

.modal-backdrop[data-open="true"] {
  display: flex;
  opacity: 1;
}

.modal {
  width: 100%;
  max-width: 460px;
  margin: auto;
  max-height: calc(100vh - var(--space-8));
  overflow-y: auto;
  overflow-x: hidden;
  background: #141017;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--elevation-3);
  padding: var(--space-6);
  box-sizing: border-box;
  position: relative;
  transform: translateY(16px) scale(0.98);
  transition:
    transform var(--transition-base) var(--ease-out),
    opacity   var(--transition-base) var(--ease-out);
  opacity: 0;
}

.modal-backdrop[data-open="true"] .modal {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.modal-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--text-secondary);
  font-size: 20px;
  transition:
    background var(--transition-base) var(--ease-out),
    color      var(--transition-base) var(--ease-out);
}

.modal-close:hover {
  background: var(--surface-elevated);
  color: var(--text-primary);
}

/* ================================================================
   Accordion
   ================================================================
   Class-based accordion with smooth height-auto animation via
   grid-template-rows 0fr ↔ 1fr (Radix pattern). Scripts/faq.js
   in Fase 4 will toggle [data-open] + aria-expanded.

   Markup:
     <div class="accordion">
       <article class="accordion-item" data-open="true">
         <button class="accordion-trigger" aria-expanded="true">
           <span>Pergunta?</span>
           <svg class="accordion-chevron">...</svg>
         </button>
         <div class="accordion-content">
           <div class="accordion-content-inner">
             <p>Resposta.</p>
           </div>
         </div>
       </article>
     </div>
   ================================================================ */
.accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.accordion-item {
  background: var(--surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition:
    background   var(--transition-base) var(--ease-out),
    border-color var(--transition-base) var(--ease-out);
}

.accordion-item:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.22);
}

.accordion-item[data-open="true"] {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(254, 6, 59, 0.55);
  box-shadow:
    0 0 0 1px rgba(254, 6, 59, 0.25),
    0 8px 24px rgba(0, 0, 0, 0.25);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  background: transparent;
  color: var(--text-primary);
  text-align: left;
  font-family: var(--font-display);
  font-weight: var(--fw-semibold);
  font-size: calc(var(--fs-body-lg) * 0.85);
  line-height: 1.35;
  cursor: pointer;
}

.accordion-trigger:focus-visible {
  outline: 2px solid var(--brand-red);
  outline-offset: -2px;
}

.accordion-chevron {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  color: var(--brand-red);
  transition: transform var(--transition-base) var(--ease-out);
}

.accordion-item[data-open="true"] .accordion-chevron {
  transform: rotate(180deg);
}

.accordion-content {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--transition-base) var(--ease-out);
}

.accordion-item[data-open="true"] .accordion-content {
  grid-template-rows: 1fr;
}

.accordion-content-inner {
  min-height: 0;
  overflow: hidden;
}

.accordion-content-inner > * {
  padding: 0 var(--space-6) var(--space-6);
  color: var(--text-secondary);
  line-height: var(--lh-body);
}

/* =============================================================
   Form (used inside .modal)
   ============================================================= */
.form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.form-step {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* .form-step { display: flex } overrides [hidden]'s default display: none.
   Explicitly re-assert hidden here so only one step renders at a time. */
.form-step[hidden] {
  display: none;
}

.form-step-sub {
  margin-top: calc(var(--space-2) * -1);
  color: var(--text-secondary);
  font-size: 0.78rem;
  line-height: 1.5;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.form-field label {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  overflow-wrap: break-word;
  word-break: normal;
}

.form-field input,
.form-field select { max-width: 100%; }

.form-field input,
.form-field select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  transition:
    border-color var(--transition-base) var(--ease-out),
    background   var(--transition-base) var(--ease-out);
}

.form-field input::placeholder { color: var(--text-muted); }

.form-field input:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--brand-red);
  background: rgba(255, 255, 255, 0.06);
}

.form-field select {
  background-image: linear-gradient(45deg, transparent 50%, var(--text-muted) 50%),
                    linear-gradient(135deg, var(--text-muted) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 12px) 50%;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 36px;
  cursor: pointer;
}

.form-field select option {
  background: #141017;
  color: var(--text-primary);
}

.form-field.has-error input,
.form-field.has-error select {
  border-color: #d91c3f;
  background: rgba(217, 28, 63, 0.06);
}

.form-error {
  min-height: 1.2em;
  font-size: 0.82rem;
  color: var(--brand-red);
  line-height: 1.3;
}

.form-actions {
  margin-top: var(--space-3);
  display: flex;
  gap: var(--space-3);
  width: 100%;
}

/* Scoped padding — the 72/88px horizontal padding from .btn-md/.btn-lg
   is designed for hero/section CTAs, not for buttons packed inside
   the 500px modal. Override to a comfortable 16px 24px so Voltar +
   Enviar fit side-by-side even on 375px viewports. */
.form-actions .btn {
  flex: 1 1 0;
  min-width: 0;
  width: auto;
  padding: 16px 24px;
  font-size: 14px;
}

/* Legacy alias: .form-actions-split is now a no-op — every
   .form-actions is already flex-row. Kept so existing markup doesn't
   need churn, but the split-specific widths are gone. */
.form-actions-split { /* no-op; kept as semantic marker */ }

/* Submit button spinner */
.form-spinner {
  display: none;
  width: 16px;
  height: 16px;
  margin-left: 10px;
  border: 2px solid rgba(255, 255, 255, 0.45);
  border-top-color: var(--brand-white);
  border-radius: 50%;
  animation: form-spin 0.8s linear infinite;
}
[data-form-submit][aria-busy="true"] .form-spinner { display: inline-block; }
[data-form-submit][aria-busy="true"] [data-submit-label] { opacity: 0.65; }

@keyframes form-spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  .form-spinner { animation-duration: 2s; }
}

/* =============================================================
   Scarcity badge — top of the modal, all steps
   ============================================================= */
.scarcity-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: var(--space-4);
  padding: 8px 14px;
  background: rgba(254, 6, 59, 0.12);
  border: 1px solid rgba(254, 6, 59, 0.3);
  border-radius: var(--radius-full);
  color: var(--brand-white);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.02em;
  text-align: center;
}

.scarcity-badge strong { color: var(--brand-white); font-weight: var(--fw-bold); }

/* Hide on the success step (hydrated via data-current-step on backdrop) */
.modal-backdrop[data-current-step="success"] .scarcity-badge,
.modal-backdrop[data-current-step="success"] .form-progress,
.modal-backdrop[data-current-step="success"] .form-progress-label {
  display: none;
}

/* =============================================================
   Radio cards (used in step 1 — cargo)
   ============================================================= */
.form-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

@media (max-width: 520px) {
  .form-cards { grid-template-columns: 1fr; }
}

.form-card {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 12px 12px;
  min-width: 0;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition:
    border-color var(--transition-base) var(--ease-out),
    background var(--transition-base) var(--ease-out);
}

.form-card:hover {
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.06);
}

.form-card:has(input:focus-visible),
.form-card.is-focused {
  outline: 2px solid var(--brand-red);
  outline-offset: 2px;
}

.form-card:has(input:checked),
.form-card.is-checked {
  border-color: var(--brand-red);
  background: rgba(254, 6, 59, 0.08);
}

.form-card-title {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-display);
  font-weight: var(--fw-semibold);
  font-size: 0.85rem;
  line-height: 1.2;
  color: var(--text-primary);
  overflow-wrap: break-word;
  word-break: break-word;
  hyphens: auto;
}

.form-card-check {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-full);
  border: 1.5px solid rgba(255, 255, 255, 0.25);
  color: var(--brand-white);
  opacity: 0;
  transform: scale(0.85);
  transition:
    opacity var(--transition-base) var(--ease-out),
    transform var(--transition-base) var(--ease-out),
    background var(--transition-base) var(--ease-out),
    border-color var(--transition-base) var(--ease-out);
}

.form-card-check svg { width: 14px; height: 14px; }

.form-card:has(input:checked) .form-card-check,
.form-card.is-checked .form-card-check {
  opacity: 1;
  transform: scale(1);
  background: var(--brand-red);
  border-color: var(--brand-red);
}

/* =============================================================
   Trust row (acima do form-actions)
   ============================================================= */
.trust-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3) var(--space-4);
  padding: var(--space-3) 0 var(--space-2);
  border-top: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: var(--fs-caption);
  font-family: var(--font-body);
}

.trust-row span { white-space: nowrap; }

@media (max-width: 520px) {
  .trust-row {
    gap: 6px;
    font-size: 0.72rem;
  }
}

/* =============================================================
   Info block (step 3 — "Por que pedimos isso?")
   ============================================================= */
.info-block {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.info-block-icon {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: rgba(254, 6, 59, 0.12);
  color: var(--brand-red);
}

.info-block-icon svg { width: 18px; height: 18px; }

.info-block-title {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: 0.9rem;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.info-block-text {
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

/* Progress bar at top of modal */
.form-progress {
  height: 4px;
  width: 100%;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-top: var(--space-2);
}

.form-progress-bar {
  height: 100%;
  width: 50%;
  background: var(--brand-red);
  transition: width var(--transition-base) var(--ease-out);
}

.form-progress-label {
  margin-top: var(--space-2);
  margin-bottom: var(--space-4);
  font-size: var(--fs-caption);
  color: var(--text-muted);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Success state */
.form-success { align-items: center; text-align: center; gap: var(--space-5); }

.form-success .modal-title { text-align: center; }

.form-success-message {
  color: var(--text-secondary);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  max-width: 40ch;
}

.form-success .btn { width: 100%; }

.form-success-close {
  background: transparent;
  border: 0;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: var(--fs-caption);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  cursor: pointer;
  padding: var(--space-2);
  transition: color var(--transition-base) var(--ease-out);
}

.form-success-close:hover { color: var(--brand-white); }