/* ============================================================
   main.css — variables, reset y estilos base
   Para cambiar colores, edita las variables de :root abajo.
   ============================================================ */

:root {
  /* Colores */
  --bg: #0d0f14;
  --surface: #141824;
  --surface-2: #1a2030;
  --border: #262e40;
  --text: #e6e9f0;
  --text-muted: #98a2b8;
  --accent: #8b7cf6;
  --accent-2: #5b8cff;
  --accent-soft: rgba(139, 124, 246, 0.12);

  /* Tipografía */
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "Cascadia Mono", Consolas, "Liberation Mono", monospace;

  /* Medidas */
  --radius: 12px;
  --radius-sm: 8px;
  --navbar-h: 64px;
  --max-width: 1080px;
  --section-pad: 80px;
}

/* --- Reset básico --- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

/* --- Base --- */
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Resplandor sutil en la parte superior de la página */
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto 0;
  height: 420px;
  background: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(139, 124, 246, 0.16), transparent 70%);
  pointer-events: none;
  z-index: -1;
}

h1, h2, h3 {
  line-height: 1.25;
  font-weight: 700;
}

h1 { font-size: 3rem; }
h2 { font-size: 1.9rem; }
h3 { font-size: 1.05rem; }

a {
  color: var(--accent-2);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1em 0.4em;
}

/* --- Utilidades --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.brand-accent {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}