/**
 * SismoRed - Base Styles & Resets
 * Exactamente igual a SismoRed Landing.dc.html
 */

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  margin: 0;
  padding: 0;
  background: var(--color-bg); /* #050708 */
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--color-alarm-subtle);
}

h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--font-display);
  text-transform: uppercase;
}

p {
  margin: 0;
  color: var(--color-text-body);
}

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

/* ═══ APARICIÓN AL ENTRAR EN PANTALLA ═══ */
/* Colgado de .js: si el script no corre, no se oculta nada. */
.js .revelar {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s cubic-bezier(0.22, 0.61, 0.36, 1),
              transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.js .revelar.visto {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .revelar { opacity: 1; transform: none; transition: none; }
}

/* ═══ KEYFRAMES OFICIALES (SismoRed Landing.dc.html) ═══ */
@keyframes sr-ring {
  0% { transform: scale(0.55); opacity: 0.6; }
  100% { transform: scale(2.2); opacity: 0; }
}

@keyframes sr-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.07); }
}

@keyframes sr-breathe {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

@keyframes sr-drift {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(-40px); }
}

@keyframes sr-hop {
  0% { opacity: 0.12; }
  30% { opacity: 1; }
  100% { opacity: 0.12; }
}

@keyframes sr-sweep {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}