/* ==========================================================================
   LEILOTECH — PLATAFORMA DE PESQUISA E VALIDAÇÃO DE MERCADO
   Identidade: CLIQUE Technology Group
   Slogan: TECNOLOGIA NOVA. VALOR RECUPERADO.
   Design: Moderno, Minimalista, Empresarial, Alto Contraste & Baixa Latência
   ========================================================================== */

/* --- Variáveis de Design Tokens --- */
:root {
  /* Cores Principais */
  --color-brand-dark: #0b192c;
  --color-brand-navy: #0f172a;
  --color-brand-surface: #1e293b;
  
  --color-primary: #1e40af;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #eff6ff;
  --color-primary-border: #bfdbfe;

  --color-accent: #059669;
  --color-accent-hover: #047857;
  --color-accent-light: #ecfdf5;

  --color-whatsapp: #25d366;
  --color-whatsapp-hover: #20bd5a;

  /* Neutros e Superfícies */
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-subtle: #f1f5f9;
  --bg-input: #ffffff;
  
  --border-light: #e2e8f0;
  --border-focus: #2563eb;
  --border-error: #ef4444;

  /* Tipografia & Cores de Texto */
  --text-main: #0f172a;
  --text-muted: #334155;
  --text-secondary: #64748b;
  --text-inverse: #ffffff;

  --font-family-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-family-heading: 'Plus Jakarta Sans', 'Inter', system-ui, -apple-system, sans-serif;

  /* Sombras Suaves */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);

  /* Dimensões & Raio */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;
  
  --max-width-content: 840px;
  --max-width-hero: 880px;

  /* Transições Suaves */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

/* --- Reset e Configurações Globais --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family-body);
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
}

button, input, select, textarea {
  font: inherit;
}

/* Utilitários de Estado */
.hidden {
  display: none !important;
}

/* --- Cabeçalho Superior --- */
.site-header {
  background-color: #ffffff;
  color: var(--text-main);
  padding: 0.75rem 1.5rem;
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
}

.header-container {
  max-width: 1040px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.brand-link {
  display: inline-flex;
  align-items: center;
}

.brand-logo-img {
  height: 48px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  display: block;
}

.brand-meta {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  border-left: 1px solid var(--border-light);
  padding-left: 1.25rem;
}

.brand-slogan {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-brand-navy);
}

.brand-tag {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.header-actions {
  display: flex;
  align-items: center;
}

.btn-share-top {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: #f8fafc;
  color: var(--text-main);
  border: 1.5px solid var(--border-light);
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-share-top:hover {
  background-color: #f1f5f9;
  border-color: #94a3b8;
}

/* --- Área Principal --- */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* --- Hero Section --- */
.hero-section {
  background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
  color: #ffffff;
  padding: 3.5rem 1.5rem 4rem 1.5rem;
  text-align: center;
  position: relative;
  border-bottom: 1px solid var(--border-light);
}

.hero-container {
  max-width: var(--max-width-hero);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-dot {
  width: 7px;
  height: 7px;
  background-color: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 6px #10b981;
}

.hero-title {
  font-family: var(--font-family-heading);
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.025em;
  color: #ffffff;
  max-width: 800px;
}

.hero-description {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  font-size: 1.05rem;
  color: #cbd5e1;
  line-height: 1.65;
  max-width: 720px;
}

.hero-description strong {
  color: #ffffff;
}

.hero-highlight-note {
  background: rgba(255, 255, 255, 0.08);
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-md);
  color: #e2e8f0;
  display: inline-block;
  margin-top: 0.25rem;
  font-size: 0.98rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  width: 100%;
  max-width: 720px;
  margin-top: 0.5rem;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  text-align: left;
}

.feature-icon {
  color: #38bdf8;
  flex-shrink: 0;
}

.feature-item strong {
  display: block;
  font-size: 0.85rem;
  color: #ffffff;
  font-weight: 600;
}

.feature-item span {
  font-size: 0.76rem;
  color: #94a3b8;
}

.hero-target-statement {
  color: #ffffff;
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.55;
  margin-top: 0.35rem;
}

.hero-cta-wrap {
  margin-top: 1rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background-color: var(--color-primary);
  color: #ffffff;
  padding: 0.95rem 2rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
}

.icon-arrow {
  transition: transform var(--transition-fast);
}

.btn-primary:hover .icon-arrow {
  transform: translateY(3px);
}

/* --- Secção Compacta: Como funciona a LeiloTech? --- */
.process-section {
  padding: 3.5rem 1.25rem 2rem 1.25rem;
  background-color: var(--bg-page);
}

.process-container {
  max-width: var(--max-width-content);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.process-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
}

.process-badge {
  display: inline-block;
  background-color: var(--bg-card-subtle);
  color: var(--color-primary);
  border: 1px solid var(--color-primary-border);
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.process-title {
  font-family: var(--font-family-heading);
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.process-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.35rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.process-card:hover {
  border-color: #cbd5e1;
  transform: translateY(-2px);
}

.process-card-header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.process-step-num {
  width: 28px;
  height: 28px;
  background-color: var(--color-primary);
  color: #ffffff;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 700;
  flex-shrink: 0;
}

.process-card-title {
  font-family: var(--font-family-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
}

.process-card-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.process-footer-note {
  text-align: center;
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.5;
  background: #f1f5f9;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.25rem;
  max-width: 720px;
  margin: 0 auto;
}

/* --- Secção do Formulário --- */
.survey-section {
  padding: 2.5rem 1.25rem 4rem 1.25rem;
  flex: 1;
}

.survey-container {
  max-width: var(--max-width-content);
  margin: 0 auto;
}

/* --- Barra de Progresso Visual dos Blocos --- */
.steps-progress-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2.5rem;
  background: var(--bg-card);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.step-indicator {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
}

.step-indicator.active {
  color: var(--color-primary);
}

.step-num {
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg-card-subtle);
  border: 1.5px solid var(--border-light);
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 700;
}

.step-indicator.active .step-num {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
}

.step-line {
  flex: 1;
  height: 2px;
  background-color: var(--border-light);
  margin: 0 0.85rem;
}

/* --- Blocos do Formulário --- */
.survey-form {
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
}

.form-block {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2rem 2.25rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.block-header {
  float: none;
  width: 100%;
  padding-bottom: 1.25rem;
  margin-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-light);
}

.block-badge {
  display: inline-block;
  background-color: var(--bg-card-subtle);
  color: var(--color-primary);
  border: 1px solid var(--color-primary-border);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.block-title {
  font-family: var(--font-family-heading);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.015em;
  margin-bottom: 0.35rem;
}

.block-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --- Perguntas e Rótulos --- */
.question-group {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.question-group.has-error {
  border-left: 3px solid var(--border-error);
  padding-left: 0.75rem;
  margin-left: -0.75rem;
}

.question-label {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.4;
}

.q-number {
  color: var(--color-primary);
  font-weight: 700;
}

.q-text {
  flex: 1;
}

.required-star {
  color: #dc2626;
  font-weight: 700;
}

.q-hint {
  width: 100%;
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--text-secondary);
  margin-top: 0.15rem;
}

.q-hint-badge {
  display: inline-block;
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-light);
  color: var(--color-primary);
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
}

/* --- Grelha de Opções (Radio & Checkbox Cards) --- */
.options-grid {
  display: grid;
  gap: 0.65rem;
}

.radio-grid, .checkbox-grid {
  grid-template-columns: 1fr;
}

.radio-inline-grid {
  grid-template-columns: repeat(3, 1fr);
}

.option-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.9rem 1.15rem;
  background-color: #ffffff;
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.option-card:hover {
  border-color: #94a3b8;
  background-color: #f8fafc;
}

/* Inputs Ocultos Mas Acessíveis */
.option-card input[type="radio"],
.option-card input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

/* Indicadores Personalizados */
.custom-control {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid #94a3b8;
  background-color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.checkbox-indicator {
  border-radius: var(--radius-sm);
}

/* Estado Selecionado */
.option-card.selected {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.option-card input[type="radio"]:checked + .radio-indicator {
  border-color: var(--color-primary);
  background-color: var(--color-primary);
  box-shadow: inset 0 0 0 3.5px #ffffff;
}

.option-card input[type="checkbox"]:checked + .checkbox-indicator {
  border-color: var(--color-primary);
  background-color: var(--color-primary);
}

.option-card input[type="checkbox"]:checked + .checkbox-indicator::after {
  content: "";
  display: block;
  width: 5px;
  height: 9px;
  border: solid #ffffff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-bottom: 2px;
}

/* Estado Desativado (ex: quando P8 atinge limite) */
.option-card.disabled {
  opacity: 0.55;
  cursor: not-allowed;
  background-color: var(--bg-card-subtle);
  border-color: var(--border-light);
}

.option-card.disabled:hover {
  border-color: var(--border-light);
  background-color: var(--bg-card-subtle);
}

/* Conteúdo da Opção */
.option-content {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.option-title {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-main);
  line-height: 1.35;
}

.option-card.selected .option-title {
  font-weight: 600;
  color: var(--color-brand-dark);
}

.option-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* --- Inputs Condicionais de Texto --- */
.conditional-input-wrap {
  margin-top: 0.5rem;
  padding: 0.85rem 1rem;
  background-color: var(--bg-card-subtle);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-primary);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.sub-label {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-main);
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--bg-input);
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  color: var(--text-main);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-input::placeholder {
  color: #94a3b8;
}

/* --- Secções Condicionais --- */
.conditional-section {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  padding: 1.25rem 1.5rem;
  background-color: #f8fafc;
  border-radius: var(--radius-md);
  border: 1px dashed #cbd5e1;
}

.subquestions-callout {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 600;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-light);
}

.callout-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

/* --- Cartão de Explicação da Solução (Bloco C) --- */
.solution-explanation-card {
  display: flex;
  gap: 1rem;
  background-color: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: var(--radius-md);
  padding: 1.15rem 1.35rem;
}

.explanation-icon {
  color: #16a34a;
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.explanation-text {
  font-size: 0.92rem;
  color: #166534;
  line-height: 1.55;
  font-weight: 500;
}

/* --- Secção de Convite para o Piloto --- */
.pilot-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-light);
}

.pilot-header {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.pilot-tag {
  display: inline-block;
  background-color: var(--color-accent-light);
  color: var(--color-accent);
  padding: 0.18rem 0.55rem;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  width: fit-content;
}

.pilot-title {
  font-family: var(--font-family-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

/* --- Caixa de Contactos Opcionais --- */
.contacts-box {
  background-color: #f8fafc;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contacts-intro {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.contacts-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.contacts-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.contacts-fields-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.input-label {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-main);
}

.optional-text {
  font-weight: 400;
  color: var(--text-secondary);
  font-size: 0.78rem;
}

/* Consentimento Explícito */
.consent-group {
  margin-top: 0.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
}

.consent-label {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  cursor: pointer;
  user-select: none;
}

.consent-label input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.consent-label input[type="checkbox"]:checked + .checkbox-indicator {
  border-color: var(--color-primary);
  background-color: var(--color-primary);
}

.consent-label input[type="checkbox"]:checked + .checkbox-indicator::after {
  content: "";
  display: block;
  width: 5px;
  height: 9px;
  border: solid #ffffff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-bottom: 2px;
}

.consent-text {
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.consent-text strong {
  color: var(--text-main);
}

/* Mensagens de Erro */
.field-error {
  display: none;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--border-error);
  margin-top: 0.35rem;
}

.question-group.has-error .field-error,
.consent-group.has-error .field-error {
  display: block;
}

/* Alerta de Estado do Formulário */
.form-status-alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  font-weight: 500;
}

.form-status-alert.error {
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  color: #b91c1c;
}

.form-status-alert.success {
  background-color: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #065f46;
}

/* --- Botão de Submissão --- */
.form-actions-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-top: 0.5rem;
}

.btn-submit {
  width: 100%;
  max-width: 440px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  background-color: var(--color-primary);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-family-heading);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 12px rgba(30, 64, 175, 0.25);
}

.btn-submit:hover:not(:disabled) {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(30, 64, 175, 0.35);
}

.btn-submit:disabled {
  opacity: 0.75;
  cursor: not-allowed;
  transform: none;
}

.btn-spinner {
  width: 20px;
  height: 20px;
  border: 2.5px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

@keyframes btnShake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-6px); }
  40%, 80% { transform: translateX(6px); }
}

.btn-submit.btn-error-shake {
  animation: btnShake 0.4s ease-in-out;
  background-color: #dc2626 !important;
  box-shadow: 0 4px 14px rgba(220, 38, 38, 0.4) !important;
}

.privacy-notice {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-align: center;
  max-width: 580px;
}

/* --- Ecrã de Agradecimento Pós-Submissão --- */
.thank-you-view {
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.thank-you-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 3rem 2.5rem;
  box-shadow: var(--shadow-md);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  max-width: 680px;
  margin: 0 auto;
}

.success-icon-wrap {
  width: 76px;
  height: 76px;
  background-color: var(--color-accent-light);
  color: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.submission-ref-badge {
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-light);
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.submission-ref-badge strong {
  color: var(--color-primary);
  font-family: monospace;
  font-size: 0.9rem;
}

.thank-you-title {
  font-family: var(--font-family-heading);
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.thank-you-body {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.share-invitation-box {
  background-color: #f8fafc;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.share-invitation-title {
  font-family: var(--font-family-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
}

.thank-you-buttons, .modal-share-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  justify-content: center;
}

.btn-share-whatsapp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background-color: var(--color-whatsapp);
  color: #ffffff;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.92rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-share-whatsapp:hover {
  background-color: var(--color-whatsapp-hover);
  transform: translateY(-1px);
}

.btn-copy-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background-color: #ffffff;
  color: var(--text-main);
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.92rem;
  border: 1.5px solid var(--border-light);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-copy-link:hover {
  background-color: var(--bg-card-subtle);
  border-color: #94a3b8;
}

.copy-success-toast {
  background-color: var(--color-accent-light);
  border: 1px solid #a7f3d0;
  color: #065f46;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.84rem;
  font-weight: 600;
}

/* --- Modal de Partilha Rápida --- */
.share-modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  z-index: 1000;
  backdrop-filter: blur(4px);
}

.share-modal-content {
  background: #ffffff;
  border-radius: var(--radius-lg);
  max-width: 460px;
  width: 100%;
  padding: 1.5rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-family: var(--font-family-heading);
  font-size: 1.15rem;
  font-weight: 700;
}

.btn-modal-close {
  background: transparent;
  border: none;
  font-size: 1.25rem;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.25rem;
}

.modal-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 0.5rem;
}

/* --- Rodapé --- */
.site-footer {
  background-color: var(--color-brand-dark);
  color: #94a3b8;
  padding: 2.5rem 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: auto;
}

.footer-container {
  max-width: 1040px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

/* Secção Comercial Discreta */
.footer-promo-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer-promo-info {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  max-width: 620px;
}

.footer-promo-title {
  font-family: var(--font-family-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.015em;
}

.footer-promo-desc {
  font-size: 0.88rem;
  color: #cbd5e1;
  line-height: 1.5;
}

.footer-promo-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.btn-footer-promo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.2rem;
  border-radius: var(--radius-md);
  font-size: 0.86rem;
  font-weight: 600;
  text-decoration: none;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.btn-promo-website {
  background-color: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.btn-promo-website:hover {
  background-color: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.38);
}

.btn-promo-whatsapp {
  background-color: var(--color-whatsapp);
  color: #ffffff;
  border: 1px solid transparent;
}

.btn-promo-whatsapp:hover {
  background-color: var(--color-whatsapp-hover);
}

.promo-icon {
  flex-shrink: 0;
}

/* Identificação Inferior */
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.82rem;
  color: #94a3b8;
  text-align: center;
}

.footer-identity {
  font-weight: 500;
  letter-spacing: 0.01em;
  color: #94a3b8;
}

/* --- Responsividade & Mobile Optimizations --- */
@media (max-width: 768px) {
  .brand-logo-img {
    height: 38px;
    max-width: 140px;
  }

  .brand-meta {
    display: none;
  }

  .hero-title {
    font-size: 1.65rem;
  }

  .hero-features-grid {
    grid-template-columns: 1fr;
    gap: 0.65rem;
  }

  .process-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .steps-progress-bar {
    padding: 0.75rem 0.85rem;
  }

  .step-text {
    display: none; /* Em ecrãs pequenos, apresenta apenas os números das fases */
  }

  .form-block {
    padding: 1.5rem 1.15rem;
  }

  .radio-inline-grid {
    grid-template-columns: 1fr;
  }

  .contacts-fields-grid {
    grid-template-columns: 1fr;
  }

  .thank-you-card {
    padding: 2rem 1.25rem;
  }

  .thank-you-buttons, .modal-share-actions {
    flex-direction: column;
    width: 100%;
  }

  .btn-share-whatsapp, .btn-copy-link {
    width: 100%;
  }

  .footer-promo-card {
    flex-direction: column;
    align-items: flex-start;
    padding: 1.25rem 1.15rem;
    gap: 1.25rem;
  }

  .footer-promo-actions {
    width: 100%;
    flex-direction: column;
    gap: 0.65rem;
  }

  .btn-footer-promo {
    width: 100%;
    justify-content: center;
  }

  .footer-bottom {
    text-align: center;
    justify-content: center;
  }
}