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

:root {
  --ink: #070812;
  --paper: #f4f5ff;
  --violet: #aa73ff;
  --mint: #67ffd1;
  --red: #ff5277;
  --muted: #8890ad;
}

html, body {
  width: 100%; height: 100%; overflow: hidden;
  background: var(--ink); color: var(--paper);
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  user-select: none; -webkit-user-select: none;
}

body::after {
  content: ""; position: fixed; inset: 0; pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(255,255,255,.018) 0 1px, transparent 1px 4px);
  mix-blend-mode: screen; opacity: .45;
}

#game { position: fixed; inset: 0; display: block; touch-action: none; }
.hidden { display: none !important; }

#hud {
  position: fixed; inset: 0 0 auto; z-index: 3; padding: 17px 24px;
  display: grid; grid-template-columns: 1fr minmax(220px, 420px) 1fr;
  align-items: start; pointer-events: none;
}
.hud-side { display: flex; flex-direction: column; gap: 3px; }
.hud-side.right { text-align: right; }
.hud-side strong { color: var(--paper); font-size: 22px; letter-spacing: 4px; }
.hud-side.right strong { color: var(--red); text-shadow: 0 0 14px rgba(255,82,119,.5); }
.hud-mid { text-align: center; }
.label { color: #757e9b; font-size: 9px; letter-spacing: 4px; }
.sub { color: #a5abc3; font-size: 10px; letter-spacing: 2px; margin-top: 2px; }
.sync-bar { height: 8px; margin: 7px auto; border: 1px solid rgba(103,255,209,.35); border-radius: 9px; overflow: hidden; background: rgba(103,255,209,.05); }
#sync-fill { width: 0; height: 100%; background: linear-gradient(90deg, var(--violet), #fff, var(--mint)); box-shadow: 0 0 12px var(--mint); transition: width .08s linear; }

#hint {
  position: fixed; z-index: 3; left: 50%; bottom: 13px; transform: translateX(-50%);
  color: #68708b; font-size: 10px; letter-spacing: 2px; white-space: nowrap; pointer-events: none;
}

.overlay {
  position: fixed; inset: 0; z-index: 10; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 15px; padding: 24px; text-align: center;
  background: radial-gradient(circle at 50% 47%, rgba(32,23,59,.88), rgba(7,8,18,.98) 64%);
}
.overlay::before {
  content: ""; position: absolute; width: min(74vw, 720px); aspect-ratio: 1;
  border: 1px solid rgba(170,115,255,.13); border-radius: 50%; box-shadow: 0 0 80px rgba(103,255,209,.05); pointer-events: none;
}
.overlay > * { position: relative; }
.eyebrow { color: var(--mint); font-size: 10px; letter-spacing: 6px; text-transform: uppercase; }
.eyebrow.danger { color: var(--red); }
h1 { font-size: clamp(43px, 9vw, 100px); line-height: .95; letter-spacing: clamp(5px, 1.5vw, 18px); margin-left: 12px; }
h1 span { color: var(--violet); text-shadow: 0 0 30px rgba(170,115,255,.7), 0 0 90px rgba(170,115,255,.25); }
h2 { font-size: clamp(30px, 6vw, 62px); letter-spacing: 8px; }
.tagline { color: #c6b5e8; font-size: clamp(13px, 2vw, 18px); letter-spacing: 5px; text-transform: uppercase; }
.rules { max-width: 680px; color: #abb1c9; font-size: clamp(12px, 1.7vw, 15px); line-height: 1.55; }
.rules strong:first-child { color: var(--violet); }
.rules p:nth-child(2) strong:last-child { color: var(--mint); }

.diagram { height: 42px; display: flex; align-items: center; gap: 10px; }
.diagram i { width: 25px; height: 25px; border-radius: 50%; display: block; }
.diagram .past { border: 2px solid var(--violet); box-shadow: 0 0 15px var(--violet); }
.diagram .present { background: var(--mint); box-shadow: 0 0 17px var(--mint); }
.diagram b { width: 17px; height: 17px; border-radius: 50%; font-size: 10px; line-height: 17px; color: #080914; background: #fff; }
.diagram em { width: 68px; height: 1px; background: linear-gradient(90deg, var(--violet), var(--mint)); position: relative; }
.diagram em::after { content: ""; position: absolute; right: -1px; top: -3px; border-left: 6px solid var(--mint); border-top: 3px solid transparent; border-bottom: 3px solid transparent; }

.btn { margin-top: 5px; padding: 14px 30px; border: 1px solid var(--mint); border-radius: 40px; background: rgba(103,255,209,.05); color: var(--mint); font-weight: 800; font-size: 12px; letter-spacing: 3px; cursor: pointer; transition: .18s ease; }
.btn:hover, .btn:focus-visible { outline: none; transform: translateY(-3px); background: rgba(103,255,209,.14); box-shadow: 0 0 28px rgba(103,255,209,.28); }
.best { min-height: 15px; color: #6f7691; font-size: 10px; letter-spacing: 2px; }
.big-stat { color: var(--mint); font-size: 18px; letter-spacing: 4px; }

@media (max-width: 620px) {
  #hud { padding: 12px; grid-template-columns: 1fr 1.3fr 1fr; }
  .hud-side strong { font-size: 15px; letter-spacing: 2px; }
  .sub { font-size: 8px; letter-spacing: 1px; }
  #sector-name, #objective, #hint { display: none; }
  .rules p { margin-bottom: 4px; }
}

@media (max-height: 650px) {
  .overlay { gap: 9px; }
  .diagram { display: none; }
  .rules { line-height: 1.35; }
}