/* =========================================================
   PIX VIRAL - Estilos Globais
   Design moderno, responsivo e de alta conversão
   ========================================================= */

/* ---------------------------------------------------------
   VARIÁVEIS CSS
   --------------------------------------------------------- */
:root {
  /* Cores Principais */
  --primary: #8B5CF6;        /* Violet - cor principal */
  --primary-dark: #7C3AED;
  --primary-light: #A78BFA;
  --primary-glow: rgba(139, 92, 246, 0.4);

  /* Cores Secundárias */
  --success: #10B981;         /* Verde - dinheiro/sucesso */
  --success-dark: #059669;
  --success-light: #34D399;
  --success-glow: rgba(16, 185, 129, 0.4);

  --warning: #F59E0B;         /* Amarelo - atenção */
  --warning-dark: #D97706;

  --danger: #EF4444;          /* Vermelho - urgência */
  --danger-dark: #DC2626;

  /* Neutros */
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;

  /* Gradientes */
  --gradient-primary: linear-gradient(135deg, #8B5CF6 0%, #7C3AED 100%);
  --gradient-success: linear-gradient(135deg, #10B981 0%, #059669 100%);
  --gradient-hero: linear-gradient(135deg, #1F2937 0%, #111827 100%);
  --gradient-card: linear-gradient(145deg, #FFFFFF 0%, #F9FAFB 100%);

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 40px var(--primary-glow);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --container-max: 1200px;
  --container-narrow: 800px;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition: 200ms ease;
  --transition-slow: 300ms ease;
}

/* ---------------------------------------------------------
   RESET & BASE
   --------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray-800);
  background-color: var(--gray-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-dark);
}

/* ---------------------------------------------------------
   TYPOGRAPHY
   --------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--gray-900);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: clamp(1.125rem, 2vw, 1.5rem); }

p {
  margin-bottom: 1rem;
  color: var(--gray-600);
}

.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-gray { color: var(--gray-500); }

/* ---------------------------------------------------------
   CONTAINER & LAYOUT
   --------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-narrow {
  max-width: var(--container-narrow);
}

.section {
  padding: 5rem 0;
}

.section-dark {
  background: var(--gradient-hero);
  color: white;
}

/* ---------------------------------------------------------
   BUTTONS
   --------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #7C3AED 0%, #6D28D9 100%);
  color: white;
}

.btn-success {
  background: var(--gradient-success);
  color: white;
  box-shadow: 0 4px 14px var(--success-glow);
}

.btn-success:hover {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  color: white;
}

.btn-lg {
  padding: 1.25rem 2.5rem;
  font-size: 1.125rem;
}

.btn-block {
  width: 100%;
}

.btn-icon {
  padding: 0.75rem 1.5rem;
}

/* ---------------------------------------------------------
   HEADER & NAV
   --------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
  transition: all var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--gray-900);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
}

.nav {
  display: flex;
  gap: 2rem;
}

.nav-link {
  color: var(--gray-600);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--primary);
}

.header-actions {
  display: flex;
  gap: 1rem;
}

/* Mobile Nav */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--gray-700);
}

@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .header-actions {
    display: none;
  }
}

/* ---------------------------------------------------------
   HERO SECTION
   --------------------------------------------------------- */
.hero {
  padding: 10rem 0 6rem;
  background: var(--gradient-hero);
  color: white;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
  opacity: 0.5;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(139, 92, 246, 0.2);
  border: 1px solid var(--primary-light);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary-light);
  margin-bottom: 1.5rem;
}

.hero-badge .pulse {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.hero h1 {
  color: white;
  margin-bottom: 1.5rem;
}

.hero h1 .highlight {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--gray-300);
  margin-bottom: 2.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  margin-bottom: 3rem;
}

@media (min-width: 640px) {
  .hero-cta {
    flex-direction: row;
    justify-content: center;
  }
}

.hero-guarantee {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--gray-400);
}

.hero-guarantee svg {
  width: 18px;
  height: 18px;
  color: var(--success);
}

/* ---------------------------------------------------------
   PROVA SOCIAL (Ticker)
   --------------------------------------------------------- */
.social-proof {
  background: var(--gray-900);
  padding: 1.5rem 0;
  overflow: hidden;
}

.social-proof-track {
  display: flex;
  gap: 3rem;
  animation: scroll 30s linear infinite;
}

@keyframes scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.social-proof-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  white-space: nowrap;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.social-proof-item .avatar {
  width: 32px;
  height: 32px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
  color: white;
}

.social-proof-item .text {
  font-size: 0.875rem;
  color: var(--gray-300);
}

.social-proof-item .text strong {
  color: var(--success);
}

/* ---------------------------------------------------------
   CARDS
   --------------------------------------------------------- */
.card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.card-icon {
  width: 64px;
  height: 64px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
}

.card-icon.success {
  background: var(--gradient-success);
}

.card-icon.warning {
  background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--gray-900);
}

.card-description {
  color: var(--gray-600);
  margin-bottom: 0;
}

/* ---------------------------------------------------------
   STEPS (Como Funciona)
   --------------------------------------------------------- */
.steps {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 2rem;
}

@media (min-width: 768px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step {
  text-align: center;
  padding: 2rem;
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  position: relative;
}

.step-number {
  width: 56px;
  height: 56px;
  background: var(--gradient-primary);
  color: white;
  font-size: 1.5rem;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
}

.step-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.step-description {
  color: var(--gray-600);
  margin-bottom: 0;
}

/* ---------------------------------------------------------
   CALCULADORA DE GANHOS
   --------------------------------------------------------- */
.calculator {
  background: white;
  border-radius: var(--radius-xl);
  padding: 3rem;
  box-shadow: var(--shadow-xl);
}

.calculator-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .calculator-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.calculator-input label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--gray-700);
}

.calculator-input input {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: 1.125rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.calculator-input input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-glow);
}

.calculator-result {
  background: var(--gradient-hero);
  border-radius: var(--radius-lg);
  padding: 2rem;
  color: white;
}

.calculator-result h4 {
  color: var(--gray-300);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.calculator-result .value {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--success);
}

.calculator-result .value.small {
  font-size: 1.5rem;
}

.calculator-breakdown {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.calculator-breakdown-item {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  font-size: 0.875rem;
}

.calculator-breakdown-item .label {
  color: var(--gray-400);
}

.calculator-breakdown-item .value {
  font-size: 1rem;
  color: white;
}

/* ---------------------------------------------------------
   TABELA COMPARATIVA
   --------------------------------------------------------- */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.comparison-table th,
.comparison-table td {
  padding: 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--gray-200);
}

.comparison-table th {
  background: var(--gray-100);
  font-weight: 700;
  color: var(--gray-900);
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table tr:hover {
  background: var(--gray-50);
}

.comparison-table .highlight {
  background: var(--gradient-primary);
  color: white;
}

.comparison-table .highlight td {
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

/* ---------------------------------------------------------
   FAQ
   --------------------------------------------------------- */
.faq {
  max-width: var(--container-narrow);
}

.faq-item {
  background: white;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 1.5rem;
  background: none;
  border: none;
  text-align: left;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-900);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all var(--transition-fast);
}

.faq-question:hover {
  background: var(--gray-50);
}

.faq-question .icon {
  width: 24px;
  height: 24px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  transition: transform var(--transition);
}

.faq-item.active .faq-question .icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer-content {
  padding: 0 1.5rem 1.5rem;
  color: var(--gray-600);
}

/* ---------------------------------------------------------
   FOOTER
   --------------------------------------------------------- */
.footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 3rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .logo {
  color: white;
  margin-bottom: 1rem;
}

.footer-brand p {
  color: var(--gray-400);
  font-size: 0.875rem;
}

.footer-title {
  color: white;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--gray-400);
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--gray-800);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  text-align: center;
  font-size: 0.875rem;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

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

.animate-pulse {
  animation: pulse 2s infinite;
}

.animate-spin {
  animation: spin 1s linear infinite;
}

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

/* ---------------------------------------------------------
   RESPONSIVIDADE GERAL
   --------------------------------------------------------- */
@media (max-width: 768px) {
  .section {
    padding: 3rem 0;
  }

  .hero {
    padding: 8rem 0 4rem;
  }

  .card {
    padding: 1.5rem;
  }

  .calculator {
    padding: 1.5rem;
  }

  .calculator-result .value {
    font-size: 2rem;
  }
}

/* ---------------------------------------------------------
   PRINT STYLES
   --------------------------------------------------------- */
@media print {
  .header,
  .footer,
  .btn,
  .social-proof {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }
}