/* === Deutrino unified mobile overlay === */
/* Keep desktop intact; only mobile (<=768px) shows overlay and hides original body children */
@media (max-width: 768px){
  html, body { height: 100%; overflow: hidden; background: #0b1020; }

  /* Hide all top-level content except overlay containers */
  body > *:not([class^="deu-"]):not(script):not(link):not(style) { display: none !important; }

  /* Title banner */
  .deu-title {
    position: fixed; left: 50%; top: 12px; transform: translateX(-50%);
    width: min(90vw, 560px); max-height: 24vh; overflow: auto;
    padding: 10px 14px; text-align: center; border-radius: 12px;
    background: rgba(0,0,0,.45); backdrop-filter: blur(6px);
    border: 1px solid rgba(255,255,255,.25); z-index: 1000;
    color:#fff; text-shadow: 0 2px 8px rgba(0,0,0,.7);
  }
  .deu-title .t { font-weight: 800; font-size: clamp(16px, 5vw, 22px); display:block; margin-bottom: 6px; }
  .deu-title .s { font-size: clamp(12px, 4vw, 16px); display:block; }

  /* Hamburger bubble */
  .deu-ham {
    position: fixed; left: 50%; transform: translateX(-50%);
    top: calc(12px + min(24vh, 140px) + 12px);
    width: 64px; height: 64px; border-radius: 50%;
    border: 2px solid rgba(80,140,220,.7);
    background: rgba(0,20,40,.95); color: #fff; font-size: 22px; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 0 18px rgba(80,140,220,.45); z-index: 1000;
  }

  /* Dropdown menu */
  .deu-menu {
    position: fixed; left: 50%; transform: translateX(-50%);
    top: calc(12px + min(24vh, 140px) + 12px + 64px + 10px);
    width: min(86vw, 420px); max-height: 42vh; overflow: auto;
    padding: 8px 0; border-radius: 12px; z-index: 999;
    background: rgba(0,15,35,.96); backdrop-filter: blur(8px);
    border: 1px solid rgba(80,140,220,.6); display: none;
  }
  .deu-menu.open { display: block; }
  .deu-menu a {
    display: block; padding: 8px 14px; font-size: 14px;
    color: #cfe8ff; text-decoration: none; border-bottom: 1px solid rgba(80,140,220,.2);
  }
  .deu-menu a:last-child { border-bottom: 0; }

  /* Video bubble (≈2× hamburger) */
  .deu-video {
    position: fixed; left: 50%; transform: translateX(-50%);
    top: calc(12px + min(24vh, 140px) + 12px + 64px + 10px + var(--deu-menu-h, 0px) + 16px);
    width: 128px; height: 128px; border-radius: 50%;
    overflow: hidden; box-shadow: inset 0 0 14px rgba(255,255,255,.25), 0 0 10px rgba(80,140,220,.35);
    z-index: 800;
  }
  .deu-video > * { width: 100%; height: 100%; object-fit: cover; }

  /* Text panel (fills rest) */
  .deu-text {
    position: fixed; left: 50%; transform: translateX(-50%);
    top: calc(12px + min(24vh, 140px) + 12px + 64px + 10px + var(--deu-menu-h, 0px) + 16px + 128px + 12px);
    width: min(92vw, 640px); bottom: 12px; overflow: auto; padding: 12px 14px;
    border-radius: 12px; background: rgba(0,0,0,.45); backdrop-filter: blur(6px);
    border: 1px solid rgba(255,255,255,.25);
    font-size: clamp(12px, 3.6vw, 15px); line-height: 1.55; z-index: 700;
    color:#e7ecf2;
  }

  /* Small phones */
  @media (max-width:480px){
    .deu-ham{ width:56px; height:56px; font-size:20px }
    .deu-video{ width:112px; height:112px }
  }
}