:root {
    --bg: #06070c;
    --ink: #e8ebf2;
    --dim: #8a92a6;
    --amber: #ffb345;
    --panel: rgba(16, 19, 28, 0.88);
    --line: rgba(255, 255, 255, 0.08);
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html, body {
    height: 100%;
    overflow: hidden;
    background: var(--bg);
    color: var(--ink);
    font-family: 'Space Grotesk', system-ui, -apple-system, sans-serif;
    -webkit-user-select: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
  }
  #scene {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    touch-action: none;
    cursor: grab;
  }
  #scene.dragging { cursor: grabbing; }
  /* vignette */
  body::after {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(ellipse at 50% 45%, transparent 50%, rgba(0,0,0,0.55) 100%);
  }

  .hud { position: fixed; z-index: 10; }
  #topbar {
    top: 0; left: 0; right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 22px;
    pointer-events: none;
  }
  #wordmark {
    font-weight: 700;
    letter-spacing: 0.32em;
    font-size: 15px;
  }
  #wordmark .diamond { color: var(--amber); }
  #puzzleno { color: var(--dim); font-weight: 400; letter-spacing: 0.1em; margin-left: 8px; font-size: 13px; }
  #timer {
    font-variant-numeric: tabular-nums;
    font-size: 15px;
    letter-spacing: 0.12em;
    color: var(--dim);
  }

  #signalwrap {
    bottom: 26px; left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 7px;
    pointer-events: none;
  }
  #signallabel {
    font-size: 10px;
    letter-spacing: 0.34em;
    color: var(--dim);
    text-transform: uppercase;
  }
  #signalbar {
    width: 190px; height: 4px;
    border-radius: 2px;
    background: rgba(255,255,255,0.09);
    overflow: hidden;
  }
  #signalfill {
    height: 100%; width: 0%;
    border-radius: 2px;
    background: #4a6fa5;
    transition: width 0.12s linear, background-color 0.25s;
  }

  #hintbtn {
    bottom: 22px; right: 22px;
    background: var(--panel);
    border: 1px solid var(--line);
    color: var(--ink);
    font-family: inherit;
    font-size: 13px;
    letter-spacing: 0.06em;
    padding: 11px 18px;
    border-radius: 999px;
    cursor: pointer;
    backdrop-filter: blur(8px);
    transition: border-color 0.25s, transform 0.15s;
  }
  #hintbtn:hover { border-color: rgba(255, 179, 69, 0.5); }
  #hintbtn:active { transform: scale(0.96); }
  #hintbtn.pulse { animation: pulse 1.6s ease-in-out infinite; }
  #hintbtn:disabled { opacity: 0.35; cursor: default; }
  @keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255,179,69,0); }
    50% { box-shadow: 0 0 0 8px rgba(255,179,69,0.12); border-color: rgba(255,179,69,0.6); }
  }

  /* modal cards */
  .card-backdrop {
    position: fixed;
    inset: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(3, 4, 8, 0.55);
    backdrop-filter: blur(3px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.45s;
  }
  .card-backdrop.show { opacity: 1; pointer-events: auto; }
  .card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 34px 34px 28px;
    max-width: 350px;
    width: calc(100% - 48px);
    text-align: center;
    backdrop-filter: blur(16px);
    box-shadow: 0 24px 80px rgba(0,0,0,0.6);
    transform: translateY(12px);
    transition: transform 0.45s cubic-bezier(0.2, 0.9, 0.3, 1);
  }
  .card-backdrop.show .card { transform: translateY(0); }
  .card h1 {
    font-size: 20px;
    letter-spacing: 0.3em;
    font-weight: 700;
    margin-bottom: 4px;
  }
  .card h1 .diamond { color: var(--amber); }
  .card .sub { color: var(--dim); font-size: 13.5px; line-height: 1.65; margin: 14px 0 20px; }
  .card .sub b { color: var(--ink); font-weight: 500; }
  .card .bigemoji { font-size: 64px; line-height: 1.15; margin: 6px 0 2px; }
  .card .answername {
    font-size: 15px;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--amber);
    margin-bottom: 16px;
  }
  .statrow {
    display: flex;
    justify-content: center;
    gap: 28px;
    margin: 6px 0 20px;
  }
  .stat .v { font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; }
  .stat .k { font-size: 10px; letter-spacing: 0.22em; color: var(--dim); text-transform: uppercase; margin-top: 3px; }
  .btn {
    display: inline-block;
    font-family: inherit;
    font-size: 13.5px;
    letter-spacing: 0.08em;
    padding: 13px 26px;
    border-radius: 999px;
    border: none;
    cursor: pointer;
    margin: 4px 3px;
    transition: transform 0.15s, opacity 0.2s;
  }
  .btn:active { transform: scale(0.96); }
  .btn-amber { background: var(--amber); color: #1a1205; font-weight: 700; }
  .btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
  .btn-ghost:hover { border-color: rgba(255,255,255,0.25); }
  #countdown { font-size: 11.5px; color: var(--dim); letter-spacing: 0.08em; margin-top: 14px; font-variant-numeric: tabular-nums; }
  #sharefeedback { font-size: 11.5px; color: var(--amber); letter-spacing: 0.08em; margin-top: 10px; min-height: 14px; }

  #toast {
    position: fixed;
    top: 64px; left: 50%;
    transform: translateX(-50%);
    z-index: 15;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 9px 20px;
    font-size: 12.5px;
    letter-spacing: 0.08em;
    color: var(--dim);
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
    backdrop-filter: blur(8px);
  }
  #toast.show { opacity: 1; }

#navigation{bottom:80px;left:20px;text-align:center}#navigation button{padding:9px 13px;margin:3px;background:var(--panel);color:var(--ink);border:1px solid #556;border-radius:10px;cursor:pointer;font:inherit}#credits{left:20px;bottom:16px;font-size:10px;color:#8a92a6}button:focus-visible{outline:3px solid #ffb345}@media(max-width:500px){#navigation{left:6px;bottom:95px}#navigation button{padding:7px 11px;font-size:12px}#navigation div:last-child{display:flex;flex-direction:column}#hintbtn{right:10px;bottom:55px}#topbar{padding:16px 12px}#wordmark{font-size:12px}#puzzleno{font-size:11px}#credits{bottom:8px;left:10px}#signalwrap{bottom:28px}}