/* ==========================================================================
   I-GO CONTABILIDADE INTEGRADA LTDA
   Base CSS & Reset Otimizado para Performance e Acessibilidade (WCAG)
   ========================================================================== */

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

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

body {
  font-family: var(--font-family-base);
  font-size: 1rem;
  line-height: 1.6;
  font-weight: var(--font-weight-regular);
  color: var(--color-text-body);
  background-color: var(--color-bg-base);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Tipografia */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-title);
  font-weight: var(--font-weight-bold);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: var(--font-weight-extrabold);
  line-height: 1.15;
}

h2 {
  font-size: clamp(1.85rem, 3.5vw, 2.5rem);
}

h3 {
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
}

h4 {
  font-size: 1.25rem;
}

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

p.lead {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

small, .text-muted {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

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

a:hover {
  color: var(--color-red-accent);
}

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

ul, ol {
  list-style: none;
}

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

/* Foco Acessível (WCAG 2.1 AA) */
:focus-visible {
  outline: 2px solid var(--color-red-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Skip link para acessibilidade */
.skip-link {
  position: absolute;
  top: -100px;
  left: 20px;
  background-color: var(--color-red-primary);
  color: var(--color-text-title);
  padding: var(--spacing-sm) var(--spacing-md);
  font-weight: var(--font-weight-bold);
  z-index: 9999;
  border-radius: var(--radius-sm);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 20px;
}

/* Barra de Rolagem Customizada */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-base);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border-light);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-red-primary);
}

/* Seleção de Texto */
::selection {
  background-color: var(--color-red-primary);
  color: var(--color-text-title);
}

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

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

.section {
  padding-top: var(--spacing-3xl);
  padding-bottom: var(--spacing-3xl);
  position: relative;
}

.section-alt {
  background-color: var(--color-bg-surface);
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
}

/* Tag / Badge de Status ou Aviso Técnico */
.badge-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.75rem;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  background-color: var(--color-red-subtle);
  color: var(--color-red-accent);
  border: 1px solid rgba(229, 9, 20, 0.3);
}

.badge-status::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-red-primary);
  box-shadow: 0 0 8px var(--color-red-primary);
}

.badge-pending {
  background-color: rgba(245, 158, 11, 0.1);
  color: #FBBF24;
  border-color: rgba(245, 158, 11, 0.3);
}

.badge-pending::before {
  background-color: #F59E0B;
  box-shadow: 0 0 8px #F59E0B;
}

/* Alertas de Transparência */
.callout-transparency {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-light);
  border-left: 4px solid var(--color-red-primary);
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-lg);
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.callout-transparency p {
  margin: 0;
  font-size: 0.925rem;
  color: var(--color-text-secondary);
}