/* ─── Reset & Base ─────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  width: 100%;
  height: 100%;
}

/* ─── Hero fills the entire browser window ─────────────────── */
.hero {
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

.hero img {
  display: block;
  width: 100%;
  height: 100%;

  /*
   * object-fit: cover  → scales the image so it always fills the
   *                       container, cropping the sides as needed.
   * object-position    → keeps the crop anchored to the centre.
   */
  object-fit: cover;
  object-position: center center;
}