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

    html, body {
      width: 100%;
      height: 100%;
      overflow: hidden;
      background: #0b1a1f;
    }

    body {
      font-family: system-ui, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .fullscreen-container {
      position: fixed;           /* fix relatiu a la viewport */
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      background: #000000;
    }

    .scene {
      position: relative;
      width: 100%;
      height: 100%;
      background: #000;
      overflow: hidden;
      flex: 1 1 auto;
    }

    .street-bg {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;        /* cobreix tota la pantalla, retalla si cal, però SENSE ESPAIS BUITS */
      object-position: center center;
      display: block;
      user-select: none;
      pointer-events: none;     /* permet que els núvols rebin clics sense interferència */
    }

    .street-fg {
        position: relative;       /* or absolute, depending on your layout */
        display: block;
        width: 100%;              /* fits containing div width */
        height: 100%;             /* fits containing div height */
        object-fit: contain;      /* or 'cover' - ensures image fits within div */
        object-position: center center;
        pointer-events: none;
        user-select: none;
        z-index: 2;               /* higher z-index so fg appears on front */
    }

    .cloud-layer {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      pointer-events: none;     /* la capa no bloqueja, però els núvols sí que tindran events */
      z-index: 20;
    }

    .cloud {
      position: absolute;
      cursor: pointer;
      pointer-events: auto;
      transition: transform 0.2s cubic-bezier(0.2, 0.9, 0.4, 1.1), filter 0.2s;
      filter: drop-shadow(0 8px 14px rgba(0, 0, 0, 0.3));
      z-index: 30;
      will-change: transform;
    }

    .cloud:hover {
      transform: scale(1.02);
      filter: drop-shadow(0 12px 22px rgba(0, 0, 0, 0.35)) brightness(1.02);
    }

    .cloud:active {
      transform: scale(0.97);
    }

    .cloud-img {
      display: block;
      width: 100%;
      height: auto;
      border-radius: 60% 40% 50% 50% / 45% 40% 60% 55%;
      transition: opacity 0.15s;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    }

    @media (max-width: 760px) {
      .cloud:hover {
        transform: scale(1.01);
      }
    }

    @media (max-width: 480px) {
      .cloud {
        transition: transform 0.1s;
      }
    }

    ::-webkit-scrollbar {
      display: none;
    }