/**
 * AION DESIGN SYSTEM — BASE & TIPOGRAFIA REFINADA
 * AION Class — Do Zero a Operação (Site Principal)
 */

*,
*::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;
  text-rendering: optimizeLegibility;
  background-color: var(--aion-dark-950);
  color: var(--aion-light-white);
  -webkit-tap-highlight-color: transparent;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family-base);
  font-weight: var(--font-weight-light);
  line-height: var(--line-height-body);
  letter-spacing: var(--letter-spacing-body);
  color: rgba(220, 226, 238, 0.88);
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  position: relative;
  background-color: var(--aion-dark-950);
}

/* Otimização de Toque Imediato (elimina atraso de 300ms de duplo clique em touch) */
button, a, [role="button"], .tappable {
  touch-action: manipulation;
}

/* Redução de Movimento Acessível */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Anel de Foco Acessível (WCAG AA/AAA) */
:focus-visible {
  outline: 2px solid var(--aion-blue-400);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

/* Tipografia Base Refinada (Helvetica Now Text - Padrão Suíço Classe A/A+) */
h1, h2, h3, h4, h5, h6 {
  color: var(--aion-light-white);
  font-weight: var(--font-weight-light);
  line-height: var(--line-height-heading);
  letter-spacing: var(--letter-spacing-heading);
}

p {
  color: rgba(200, 206, 218, 0.85);
  margin-bottom: var(--space-md);
  font-weight: var(--font-weight-light);
  letter-spacing: var(--letter-spacing-body);
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--aion-blue-400);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--aion-blue-300);
}

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

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

button {
  cursor: pointer;
  background: none;
  border: none;
  user-select: none;
  -webkit-user-select: none;
}

ul, ol {
  list-style: none;
}

/* Containers de Layout */
.aion-container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

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

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

/* Grids Utilitários */
.aion-grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

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

.aion-grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

@media (min-width: 768px) {
  .aion-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .aion-grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.aion-grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 640px) {
  .aion-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .aion-grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Classes Utilitárias de Texto Refinadas (Classe A/A+) */
.text-display {
  font-size: var(--font-size-display);
  font-weight: var(--font-weight-light);
  line-height: var(--line-height-display);
  letter-spacing: -0.025em;
}

.text-h1 {
  font-size: var(--font-size-h1);
  font-weight: var(--font-weight-light);
  line-height: var(--line-height-heading);
  letter-spacing: -0.02em;
}

.text-h2 {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-heading);
  letter-spacing: -0.015em;
}

.text-h3 {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-heading);
}

.text-body-lg {
  font-size: var(--font-size-body-lg);
  line-height: var(--line-height-body);
  font-weight: var(--font-weight-light);
}

.text-body {
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  font-weight: var(--font-weight-light);
}

.text-body-sm {
  font-size: var(--font-size-body-sm);
  line-height: 1.55;
}

.text-caption {
  font-size: var(--font-size-caption);
  line-height: 1.4;
  letter-spacing: var(--letter-spacing-caps);
  text-transform: uppercase;
}

/* Preço Monetário — Momento Específico de Peso Forte */
.text-price {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-price);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.04em;
  color: #FFFFFF;
}

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