/* =====================================================================
   ELEGANCE IV — Briefing de Projeto
   style.css
   Estética: sofisticada, clean, premium, elegante, mobile-first.
   ===================================================================== */

/* ---------------------------------------------------------------------
   1. VARIÁVEIS E RESET
   --------------------------------------------------------------------- */
:root{
  --color-bg:            #FAF8F4;
  --color-bg-alt:        #F3EFE8;
  --color-surface:       #FFFFFF;
  --color-ink:           #201D19;
  --color-ink-soft:      #55504A;
  --color-ink-faint:     #8A837A;
  --color-border:        #E7E0D5;
  --color-border-strong: #D8CEBC;
  --color-accent:        #A6824F;
  --color-accent-dark:   #8B6B3D;
  --color-accent-soft:   #F1E7D4;
  --color-error:         #A23B3B;
  --color-error-bg:      #FBEEEE;
  --color-success:       #4B6B4E;

  --font-serif: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-sans:  'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-soft: 0 2px 16px rgba(32, 29, 25, 0.05);
  --shadow-card: 0 4px 28px rgba(32, 29, 25, 0.06);
  --shadow-lift: 0 12px 40px rgba(32, 29, 25, 0.12);

  --transition-fast: 150ms ease;
  --transition-base: 240ms cubic-bezier(.4,0,.2,1);

  --nav-height: 76px;
}

*, *::before, *::after{ box-sizing: border-box; }

html{ -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body{
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding-bottom: calc(var(--nav-height) + 24px);
}

h1, h2, h3{
  font-family: var(--font-serif);
  font-weight: 500;
  color: var(--color-ink);
  letter-spacing: 0.01em;
  margin: 0 0 8px;
}

p{ margin: 0 0 12px; }

a{ color: var(--color-accent-dark); }

ul{ margin: 0; padding: 0; list-style: none; }

hr{ border: none; }

button{ font-family: inherit; }

input, textarea, select{ font-family: inherit; font-size: 1rem; }

/* Screen-reader only */
.sr-only{
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* Campo honeypot anti-spam — escondido de pessoas, visível para bots */
.hp-field{
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Visible focus states everywhere (accessibility) */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible{
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ---------------------------------------------------------------------
   2. CABEÇALHO
   --------------------------------------------------------------------- */
.site-header{
  background: linear-gradient(180deg, #221F1B 0%, #2C2822 100%);
  color: #F6F1E8;
  padding: 48px 20px 40px;
  text-align: center;
}

.header-inner{ max-width: 640px; margin: 0 auto; }

.brand-mark{
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 18px;
  font-weight: 700;
}

.site-header h1{
  color: #FBF8F2;
  font-size: 2.1rem;
  margin-bottom: 10px;
}

.header-subtitle-strong{
  font-family: var(--font-sans);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-accent-soft);
  margin-bottom: 18px;
  font-weight: 600;
}

.header-subtitle{
  font-size: 0.98rem;
  color: #D9D2C4;
  max-width: 480px;
  margin: 0 auto 16px;
}

.header-meta{
  display: inline-block;
  font-size: 0.85rem;
  color: #F6F1E8;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  padding: 7px 16px;
  border-radius: 999px;
  margin: 0;
}

/* ---------------------------------------------------------------------
   3. LAYOUT GERAL
   --------------------------------------------------------------------- */
.page-shell{
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 16px 40px;
}

@media (min-width: 640px){
  .page-shell{ padding: 32px 24px 48px; }
}

.site-footer{
  text-align: center;
  padding: 28px 16px 40px;
  color: var(--color-ink-faint);
  font-size: 0.82rem;
  letter-spacing: 0.03em;
}

/* ---------------------------------------------------------------------
   4. BARRA DE PROGRESSO
   --------------------------------------------------------------------- */
.progress-wrap{
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--color-bg);
  padding: 16px 0 12px;
  margin-bottom: 8px;
}

.progress-track{
  height: 6px;
  background: var(--color-border);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill{
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent-dark), var(--color-accent));
  border-radius: 999px;
  transition: width var(--transition-base);
}

.progress-labels{
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: 10px;
  font-size: 0.78rem;
  color: var(--color-ink-faint);
  letter-spacing: 0.03em;
}

#stepIndicator{ font-weight: 700; color: var(--color-accent-dark); text-transform: uppercase; font-size: 0.72rem; letter-spacing: 0.08em; }
#stepTitleLabel{ font-weight: 500; text-align: right; }

/* ---------------------------------------------------------------------
   5. ETAPAS DO FORMULÁRIO
   --------------------------------------------------------------------- */
.form-step{ display: none; animation: stepIn var(--transition-base); }
.form-step.active{ display: block; }

@keyframes stepIn{
  from{ opacity: 0; transform: translateY(8px); }
  to{ opacity: 1; transform: translateY(0); }
}

.card{
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-card);
}

@media (min-width: 640px){
  .card{ padding: 40px 44px; }
}

.card h2{ font-size: 1.5rem; margin-bottom: 6px; }
.card .sub-heading{ font-size: 1.15rem; margin-top: 4px; }
.card-hint{
  color: var(--color-ink-soft);
  font-size: 0.92rem;
  margin-bottom: 24px;
}

.divider{
  height: 1px;
  background: var(--color-border);
  margin: 32px 0 24px;
}

.notice-box{
  background: var(--color-accent-soft);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  font-size: 0.86rem;
  color: var(--color-ink-soft);
  margin: 16px 0 8px;
}

.notice-inline{
  font-size: 0.85rem;
  color: var(--color-ink-faint);
  font-style: italic;
  margin-top: -10px;
  margin-bottom: 20px;
}

/* ---------------------------------------------------------------------
   6. GRIDS
   --------------------------------------------------------------------- */
.grid-2, .grid-3{
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

@media (min-width: 560px){
  .grid-2{ grid-template-columns: 1fr 1fr; gap: 0 20px; }
  .grid-3{ grid-template-columns: 1fr 1fr 1fr; gap: 0 20px; }
}

/* ---------------------------------------------------------------------
   7. CAMPOS
   --------------------------------------------------------------------- */
.field{ margin-bottom: 20px; }

label{
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 7px;
  letter-spacing: 0.01em;
}

.req{ color: var(--color-accent-dark); }
.opt{ color: var(--color-ink-faint); font-weight: 400; font-size: 0.83rem; }

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="number"],
textarea,
select{
  width: 100%;
  padding: 13px 15px;
  background: var(--color-bg);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  color: var(--color-ink);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

input::placeholder, textarea::placeholder{ color: var(--color-ink-faint); }

input:hover, textarea:hover, select:hover{ border-color: var(--color-accent); }

input:focus, textarea:focus, select:focus{
  outline: none;
  border-color: var(--color-accent);
  background: var(--color-surface);
  box-shadow: 0 0 0 3px rgba(166, 130, 79, 0.15);
}

input.field-invalid, textarea.field-invalid{
  border-color: var(--color-error);
  background: var(--color-error-bg);
}

textarea{ resize: vertical; min-height: 90px; }

.char-counter{
  display: block;
  text-align: right;
  font-size: 0.76rem;
  color: var(--color-ink-faint);
  margin-top: 4px;
}
.char-counter.counter-limit{ color: var(--color-error); }

.error-msg{
  display: none;
  color: var(--color-error);
  font-size: 0.8rem;
  margin-top: 6px;
}
.error-msg.visible{ display: block; }

/* ---------------------------------------------------------------------
   8. GRUPOS (fieldset / legend)
   --------------------------------------------------------------------- */
.field-group{
  border: none;
  padding: 0;
  margin: 0 0 22px;
}
.field-group.no-margin{ margin-bottom: 0; }

.field-group legend{
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 10px;
  padding: 0;
  letter-spacing: 0.01em;
}

/* ---------------------------------------------------------------------
   9. PILLS (radio / checkbox estilizados)
   --------------------------------------------------------------------- */
.radio-pills, .checkbox-pills{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.radio-pills-vertical{ flex-direction: column; }
.checkbox-pills-compact .pill{ padding: 7px 12px; font-size: 0.82rem; }

.pill{
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--color-border-strong);
  border-radius: 999px;
  background: var(--color-bg);
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--color-ink-soft);
  transition: all var(--transition-fast);
  user-select: none;
}

.radio-pills-vertical .pill{
  border-radius: var(--radius-sm);
  width: 100%;
}

.pill input{
  position: absolute;
  opacity: 0;
  width: 1px; height: 1px;
  pointer-events: none;
}

.pill:hover{ border-color: var(--color-accent); color: var(--color-ink); }

.pill input:focus-visible ~ span{
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.pill:has(input:checked){
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: #FBF8F2;
}

.pill-other:has(input:checked), .pill-highlight:has(input:checked){
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
}

.pill-highlight{
  border-style: dashed;
  font-style: italic;
}

/* Fallback visual state for browsers without :has() — handled via JS class */
.pill.is-checked{
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: #FBF8F2;
}
.pill-other.is-checked, .pill-highlight.is-checked{
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
}

/* ---------------------------------------------------------------------
   10. CAMPOS CONDICIONAIS
   --------------------------------------------------------------------- */
.conditional{
  border-left: 2px solid var(--color-border-strong);
  padding-left: 18px;
  margin: 6px 0 22px;
  animation: stepIn var(--transition-base);
}
.conditional[hidden]{ display: none; }

/* ---------------------------------------------------------------------
   11. UPLOAD DE ARQUIVOS
   --------------------------------------------------------------------- */
.file-upload{
  border: 1.5px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  background: var(--color-bg-alt);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.file-upload.drag-over{
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
}

.file-upload .file-input{
  position: absolute;
  width: 1px; height: 1px;
  opacity: 0;
  overflow: hidden;
}

.upload-trigger{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--color-ink);
  color: #FBF8F2;
  border: none;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.upload-trigger:hover{ background: var(--color-accent-dark); transform: translateY(-1px); }

.upload-hint{
  font-size: 0.78rem;
  color: var(--color-ink-faint);
  margin: 10px 0 0;
}

.file-list{ margin-top: 14px; text-align: left; }

.file-item{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  font-size: 0.83rem;
}

.file-item-thumb{
  width: 34px; height: 34px;
  border-radius: 4px;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--color-bg-alt);
}

.file-item-icon{
  width: 34px; height: 34px;
  border-radius: 4px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-soft);
  font-size: 1rem;
}

.file-item-info{ flex: 1; min-width: 0; }
.file-item-name{
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 600;
  color: var(--color-ink);
}
.file-item-size{ color: var(--color-ink-faint); font-size: 0.76rem; }

.file-item-remove{
  background: none;
  border: none;
  color: var(--color-ink-faint);
  cursor: pointer;
  font-size: 1rem;
  padding: 4px 6px;
  border-radius: 4px;
  flex-shrink: 0;
}
.file-item-remove:hover{ color: var(--color-error); background: var(--color-error-bg); }

/* ---------------------------------------------------------------------
   12. REPETIDORES (concorrentes, referências, depoimentos, portfólio)
   --------------------------------------------------------------------- */
.repeater{ display: flex; flex-direction: column; gap: 16px; margin-bottom: 14px; }

.repeater-item{
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 18px 6px;
  background: var(--color-bg-alt);
  position: relative;
  animation: stepIn var(--transition-base);
}

.repeater-item-head{
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.repeater-item-title{
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--color-accent-dark);
}

.btn-remove{
  background: none;
  border: 1px solid var(--color-border-strong);
  color: var(--color-ink-soft);
  width: 30px; height: 30px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.85rem;
  line-height: 1;
}
.btn-remove:hover{ background: var(--color-error); border-color: var(--color-error); color: #fff; }

.btn-add{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1.5px dashed var(--color-accent);
  color: var(--color-accent-dark);
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.86rem;
  cursor: pointer;
  margin-bottom: 24px;
  transition: all var(--transition-fast);
}
.btn-add:hover{ background: var(--color-accent-soft); }

/* ---------------------------------------------------------------------
   13. RESUMO (etapa de confirmação)
   --------------------------------------------------------------------- */
.summary-container{ margin-bottom: 24px; }

.summary-group{
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  margin-bottom: 14px;
  background: var(--color-bg-alt);
}

.summary-group-title{
  font-family: var(--font-sans);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  margin-bottom: 10px;
}

.summary-row{
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  padding: 6px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.86rem;
}
.summary-row:last-child{ border-bottom: none; }

.summary-row dt{
  font-weight: 600;
  color: var(--color-ink-soft);
  flex: 0 0 auto;
}
.summary-row dd{
  margin: 0;
  color: var(--color-ink);
  flex: 1 1 200px;
  word-break: break-word;
}

.summary-empty{
  color: var(--color-ink-faint);
  font-style: italic;
  font-size: 0.86rem;
  text-align: center;
  padding: 20px 0;
}

/* ---------------------------------------------------------------------
   14. CONFIRMAÇÃO / CHECKBOXES FINAIS
   --------------------------------------------------------------------- */
.confirm-checks{ margin-bottom: 26px; }

.checkbox-line{
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--color-ink-soft);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.checkbox-line:hover{ border-color: var(--color-accent); }
.checkbox-line input{ margin-top: 3px; width: 18px; height: 18px; accent-color: var(--color-accent-dark); flex-shrink: 0; }
.checkbox-line:has(input:checked){ background: var(--color-accent-soft); border-color: var(--color-accent); }

/* ---------------------------------------------------------------------
   15. BOTÕES
   --------------------------------------------------------------------- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary{
  background: var(--color-ink);
  color: #FBF8F2;
}
.btn-primary:hover{ background: var(--color-accent-dark); transform: translateY(-1px); box-shadow: var(--shadow-soft); }
.btn-primary:active{ transform: translateY(0); }
.btn-primary:disabled{ background: var(--color-border-strong); color: var(--color-ink-faint); cursor: not-allowed; transform: none; box-shadow: none; }

.btn-ghost{
  background: transparent;
  color: var(--color-ink-soft);
  border: 1px solid var(--color-border-strong);
}
.btn-ghost:hover{ border-color: var(--color-accent); color: var(--color-ink); }
.btn-ghost:disabled{ opacity: 0.4; cursor: not-allowed; }

.btn-submit{
  width: 100%;
  padding: 17px 28px;
  font-size: 1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--color-accent-dark);
}
.btn-submit:hover{ background: var(--color-ink); }

.submit-error{
  color: var(--color-error);
  background: var(--color-error-bg);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.86rem;
  margin-top: 14px;
  text-align: center;
}
.submit-error[hidden]{ display: none; }

/* ---------------------------------------------------------------------
   16. NAVEGAÇÃO FIXA ENTRE ETAPAS
   --------------------------------------------------------------------- */
.form-nav{
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 30;
  background: rgba(250, 248, 244, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid var(--color-border);
  padding: 12px 16px;
  padding-bottom: max(12px, env(safe-area-inset-bottom));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  height: var(--nav-height);
}

.form-nav[hidden]{ display: none; }

.nav-step-text{
  font-size: 0.78rem;
  color: var(--color-ink-faint);
  font-weight: 600;
  text-align: center;
  flex: 1;
}

@media (min-width: 640px){
  .form-nav{
    max-width: 760px;
    margin: 0 auto;
    left: 0; right: 0;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  }
}

/* ---------------------------------------------------------------------
   17. TELA DE SUCESSO
   --------------------------------------------------------------------- */
.success-screen{
  text-align: center;
  padding: 20px 0 60px;
}

.success-inner{
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 56px 28px;
  box-shadow: var(--shadow-card);
}

.success-icon{ font-size: 2.6rem; margin-bottom: 16px; }
.success-screen h2{ font-size: 1.7rem; margin-bottom: 18px; }
.success-screen p{ color: var(--color-ink-soft); max-width: 440px; margin-left: auto; margin-right: auto; }

/* ---------------------------------------------------------------------
   18. LOADING OVERLAY
   --------------------------------------------------------------------- */
.loading-overlay{
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(32, 29, 25, 0.82);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  color: #FBF8F2;
}
.loading-overlay[hidden]{ display: none; }

.spinner{
  width: 46px; height: 46px;
  border-radius: 50%;
  border: 3px solid rgba(255,255,255,0.25);
  border-top-color: var(--color-accent);
  animation: spin 0.8s linear infinite;
}

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

/* ---------------------------------------------------------------------
   19. UTILITÁRIOS RESPONSIVOS
   --------------------------------------------------------------------- */
@media (max-width: 420px){
  .site-header h1{ font-size: 1.7rem; }
  .card{ padding: 24px 16px; }
  .pill{ font-size: 0.84rem; padding: 9px 14px; }
}

/* Reduz animações para quem prefere */
@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
  html{ scroll-behavior: auto; }
}

/* Impressão (caso alguém precise imprimir o resumo) */
@media print{
  .form-nav, .site-header, .progress-wrap, .loading-overlay{ display: none !important; }
  .form-step{ display: block !important; }
}