/* Reset básico */
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: #fff;
  background: #000;
  overflow-x: hidden;
}

/* Video en pantalla completa, fijo */
.video-stage {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background: #000;
}

.video-stage video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover; /* llena la pantalla sin deformar */
  object-position: center;
}

/* Un poco de contraste para texto */
.vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(0,0,0,0.0) 0%, rgba(0,0,0,0.10) 70%, rgba(0,0,0,0.25) 100%);
  pointer-events: none;
}

/* Contenido por encima del video */
.content {
  position: relative;
  z-index: 1;
  min-height: 400vh; /* espacio para scroll; JS lo ajusta mejor según duración */
  padding: 8vh 8vw;
}

.hero {
  max-width: 720px;
  padding: 4vh 0 10vh;
}

h1 { font-size: clamp(2rem, 4vw, 3.25rem); line-height: 1.05; margin: 0 0 1rem; }
h2 { font-size: clamp(1.4rem, 2.6vw, 2rem); margin: 0 0 .75rem; }
p { font-size: 1.05rem; line-height: 1.55; margin: 0 0 1rem; opacity: .95; }

.hint {
  display: inline-block;
  margin-top: .75rem;
  padding: .5rem .75rem;
  border-radius: 999px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.18);
  backdrop-filter: blur(8px);
  font-size: .95rem;
}

/* Bloques para scroll */
.block {
  max-width: 720px;
  margin: 18vh 0;
  padding: 1.25rem 1.25rem 1.4rem;
  border-radius: 18px;
  background: rgba(0,0,0,.35);
  border: 1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(10px);
}