/* ==========================================================================
   XYZ Tools - Base Reset & Ambient Background (Plus Jakarta Sans)
   ========================================================================== */

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

html {
  font-size: 15.5px;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  /* scroll-behavior aplicado via media query para respeitar preferência do usuário */
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-app);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  -webkit-tap-highlight-color: transparent;
}

/* ==========================================================================
   Zero-Lag Ultra-Light Ambient Glow Background (Static Radial Gradients)
   ========================================================================== */
.global-ambient-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
  background-image: 
    radial-gradient(ellipse 65% 55% at 50% -10%, rgba(6, 182, 212, 0.08) 0%, transparent 75%),
    radial-gradient(ellipse 45% 40% at 85% 15%, rgba(16, 185, 129, 0.05) 0%, transparent 65%);
}

[data-theme="midnight-oled"] .global-ambient-bg {
  display: none;
}

[data-theme="light-clean"] .global-ambient-bg {
  background-image: 
    radial-gradient(ellipse 65% 55% at 50% -10%, rgba(6, 182, 212, 0.06) 0%, transparent 75%),
    radial-gradient(ellipse 45% 40% at 85% 15%, rgba(16, 185, 129, 0.04) 0%, transparent 65%);
}

/* Base Form Elements */
input, textarea, select, button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

button {
  background: none;
  border: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  outline: none;
}

a {
  color: inherit;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
  outline: none;
}

/* Custom Clean Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border-medium);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-active);
}

/* Selection Highlight */
::selection {
  background-color: rgba(var(--accent-primary-rgb), 0.3);
  color: #ffffff;
}

/* Classe de acessibilidade: visualmente oculto mas acessível para leitores de tela */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Scroll suave apenas quando o usuário não prefere movimento reduzido */
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}