/* ============================================
   VARIÁVEIS & RESET
   ============================================ */
:root {
  /* Previdência Social — Azul + Amarelo */
  --color-primary:       #003580;
  --color-primary-dark:  #002560;
  --color-primary-light: #dde8f7;
  --color-accent:        #f5a800;
  --color-accent-dark:   #d48f00;
  --color-accent-light:  #fff8e1;
  --color-success:       #0e9f6e;
  --color-warning:       #c27803;
  --color-danger:        #e02424;
  --color-gray-50:       #f8fafc;
  --color-gray-100:      #f1f5f9;
  --color-gray-200:      #e2e8f0;
  --color-gray-400:      #94a3b8;
  --color-gray-600:      #475569;
  --color-gray-800:      #1e293b;
  --color-white:         #ffffff;

  --font-family:   'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-sm:  0.875rem;
  --font-size-base: 1rem;
  --font-size-lg:  1.125rem;
  --font-size-xl:  1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;

  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-xl:  16px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);

  --transition: 0.2s ease;
  --max-width:  680px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-gray-800);
  background-color: var(--color-gray-50);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.main {
  flex: 1;
  padding: 2rem 0 3rem;
}

/* ============================================
   HEADER
   ============================================ */
.header {
  background: var(--color-primary);
  border-bottom: 4px solid var(--color-accent);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header__logo {
  display: flex;
  align-items: center;
}

.header__logo-text {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.01em;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--color-white);
  border-top: 1px solid var(--color-gray-200);
  padding: 1.25rem 0;
  text-align: center;
}

.footer__text {
  font-size: var(--font-size-sm);
  color: var(--color-gray-400);
}

/* ============================================
   SCREENS (Wizard)
   ============================================ */
.screen {
  display: none;
}

.screen--active {
  display: block;
}

/* ============================================
   INTRO SCREEN
   ============================================ */
.intro {
  text-align: center;
  padding: 2.5rem 0 1.5rem;
}

.intro__badge {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.3rem 0.9rem;
  border-radius: 99px;
  margin-bottom: 1.25rem;
}

.intro__title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-gray-800);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.intro__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-gray-600);
  margin-bottom: 2rem;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.intro__features {
  list-style: none;
  display: inline-flex;
  flex-direction: column;
  gap: 0.6rem;
  text-align: left;
  margin-bottom: 2.25rem;
  font-size: var(--font-size-base);
  color: var(--color-gray-600);
}

.intro__check {
  display: inline-block;
  width: 1.1rem;
  color: var(--color-primary);
  font-weight: 700;
  margin-right: 0.4rem;
}

/* ============================================
   BOTÕES
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  padding: 0.75rem 1.5rem;
  min-height: 44px;
  transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-primary);
}

.btn--primary:hover {
  background-color: var(--color-accent-dark);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background-color: var(--color-gray-100);
  color: var(--color-gray-800);
}

.btn--secondary:hover {
  background-color: var(--color-gray-200);
}

.btn--success {
  background-color: var(--color-accent);
  color: var(--color-primary);
  font-weight: 700;
}

.btn--success:hover {
  background-color: var(--color-accent-dark);
  box-shadow: var(--shadow-md);
}

.btn--large {
  font-size: var(--font-size-lg);
  padding: 1rem 2rem;
  min-height: 52px;
  border-radius: var(--radius-lg);
}

.btn--block {
  width: 100%;
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  padding: 1.75rem;
}

/* ============================================
   FORMULÁRIOS
   ============================================ */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-800);
  margin-bottom: 0.4rem;
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-gray-800);
  background: var(--color-white);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  min-height: 44px;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-input--error {
  border-color: var(--color-danger);
}

.form-error {
  font-size: var(--font-size-sm);
  color: var(--color-danger);
  margin-top: 0.3rem;
}

.radio-group,
.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.radio-option,
.checkbox-option {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color var(--transition), background-color var(--transition);
  min-height: 44px;
}

.radio-option:hover,
.checkbox-option:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.radio-option input,
.checkbox-option input {
  accent-color: var(--color-primary);
  width: 18px;
  height: 18px;
}

/* ============================================
   BARRA DE PROGRESSO
   ============================================ */
.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--color-gray-200);
  border-radius: 99px;
  margin-bottom: 1.5rem;
  overflow: hidden;
}

.progress-bar__fill {
  height: 100%;
  background: var(--color-accent);
  border-radius: 99px;
  transition: width 0.4s ease;
}

.progress-label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-400);
  margin-bottom: 0.5rem;
}

/* ============================================
   BADGES DE STATUS
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: var(--font-size-sm);
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 99px;
}

.badge--success {
  background: #dcfce7;
  color: #15803d;
}

.badge--warning {
  background: #fef9c3;
  color: #854d0e;
}

.badge--neutral {
  background: var(--color-gray-100);
  color: var(--color-gray-400);
}

/* ============================================
   SPINNER
   ============================================ */
.spinner {
  display: inline-block;
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-gray-200);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

.loading-screen {
  text-align: center;
  padding: 3rem 0;
}

.loading-screen p {
  margin-top: 1rem;
  color: var(--color-gray-600);
}

/* ============================================
   ANIMAÇÕES DE TRANSIÇÃO
   ============================================ */
.screen--enter {
  animation: fadeSlideIn 0.3s ease forwards;
}

@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   RESPONSIVIDADE
   ============================================ */
/* ============================================
   RESPONSIVIDADE GLOBAL
   ============================================ */

/* Tablet */
@media (max-width: 768px) {
  :root {
    --max-width: 100%;
  }

  .main {
    padding: 1.25rem 0 2.5rem;
  }
}

/* Mobile */
@media (max-width: 480px) {
  .intro__title {
    font-size: var(--font-size-2xl);
  }

  .intro__subtitle {
    font-size: var(--font-size-base);
  }

  .card {
    padding: 1.25rem;
  }

  .header__logo-text {
    font-size: var(--font-size-base);
  }

  .btn--large {
    font-size: var(--font-size-base);
    padding: 0.875rem 1.5rem;
  }
}

/* Sem scroll horizontal em qualquer resolução */
html, body {
  overflow-x: hidden;
}

/* Focus visível para acessibilidade */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Scroll suave global */
html {
  scroll-behavior: smooth;
}