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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: 1.6;
  color: var(--color-dark);
  background-color: var(--color-light);
  overflow-x: hidden;
}

/* Tipografia global */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--font-size-5xl);
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

h5 {
  font-size: var(--font-size-xl);
}

h6 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--spacing-md);
}

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

a:hover {
  color: var(--color-secondary);
}

/* Botões globais */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  text-align: center;
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

.btn-primary:hover {
  background-color: var(--color-secondary);
  color: var(--color-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-light);
}

.btn-large {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--font-size-lg);
}

/* Ícones dentro de botões */
.btn .iconify {
  font-size: 1.25em;
}

/* Container global */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Seções */
section {
  padding: var(--spacing-4xl) 0;
}

/* Utilitários */
.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mt-auto {
  margin-top: auto;
}

.mb-auto {
  margin-bottom: auto;
}

/* Animações CSS */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Animações para cards */
.benefit-card,
.plan-card {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.benefit-card.is-visible,
.plan-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Delay escalonado para múltiplos elementos */
.benefit-card:nth-child(1) { transition-delay: 0s; }
.benefit-card:nth-child(2) { transition-delay: 0.1s; }
.benefit-card:nth-child(3) { transition-delay: 0.2s; }
.benefit-card:nth-child(4) { transition-delay: 0.3s; }
.benefit-card:nth-child(5) { transition-delay: 0.4s; }
.benefit-card:nth-child(6) { transition-delay: 0.5s; }

.plan-card:nth-child(1) { transition-delay: 0s; }
.plan-card:nth-child(2) { transition-delay: 0.15s; }
.plan-card:nth-child(3) { transition-delay: 0.3s; }

/* Responsividade Base */

/* Tablet */
@media (max-width: 1024px) {
  html {
    font-size: 15px;
  }

  section {
    padding: var(--spacing-3xl) 0;
  }

  h1 {
    font-size: var(--font-size-4xl);
  }

  h2 {
    font-size: var(--font-size-3xl);
  }

  .container {
    padding: 0 var(--spacing-md);
  }
}

/* Mobile */
@media (max-width: 768px) {
  html {
    font-size: 14px;
  }

  section {
    padding: var(--spacing-2xl) 0;
  }

  h1 {
    font-size: var(--font-size-3xl);
  }

  h2 {
    font-size: var(--font-size-2xl);
  }

  .btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
  }

  .btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
  }
}

@media (max-width: 480px) {
  section {
    padding: var(--spacing-xl) 0;
  }
}

/* Acessibilidade - Reduzir movimento para quem preferir */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}