:root {
  --bg: #0b1020;
  --bg2: #131a30;
  --card: #182142;
  --line: #2a3560;
  --text: #e8ecff;
  --muted: #93a0c8;
  --primary: #4f7cff;
  --primary-2: #6a92ff;
  --freeze: #12d0e6;
  --success: #22c55e;
  --danger: #ef4444;
  --warn: #f59e0b;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: system-ui, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(1200px 800px at 50% -10%, #1a2350 0%, var(--bg) 60%);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

#app { min-height: 100%; display: flex; align-items: center; justify-content: center; padding: 20px; }

.screen { display: none; width: 100%; max-width: 980px; }
.screen.active { display: block; }

.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.warn { color: var(--warn); }

/* -------- Cards / start screen -------- */
.loader-card {
  background: linear-gradient(180deg, var(--card), var(--bg2));
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 40px 32px;
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
  box-shadow: 0 20px 60px rgba(0,0,0,.45);
}
.loader-card h1 { margin: 8px 0 6px; font-size: 34px; letter-spacing: .5px; }
.snowflake { font-size: 54px; animation: float 3s ease-in-out infinite; }
@keyframes float { 0%,100%{ transform: translateY(0) } 50%{ transform: translateY(-10px) } }

.progress { height: 10px; background: #0c1330; border-radius: 99px; overflow: hidden; margin: 16px 0 6px; border: 1px solid var(--line); }
.progress-bar { height: 100%; width: 0%; background: linear-gradient(90deg, var(--freeze), var(--primary)); transition: width .2s; }

/* -------- Buttons -------- */
.btn {
  border: 1px solid var(--line);
  background: #1c264c;
  color: var(--text);
  padding: 10px 18px;
  border-radius: 12px;
  font-size: 15px;
  cursor: pointer;
  transition: transform .05s, background .15s, box-shadow .15s;
}
.btn:hover { background: #243063; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-lg { padding: 14px 26px; font-size: 18px; font-weight: 700; }
.btn-primary { background: linear-gradient(180deg, var(--primary-2), var(--primary)); border-color: transparent; }
.btn-primary:hover { filter: brightness(1.08); background: linear-gradient(180deg, var(--primary-2), var(--primary)); }
.btn-ghost { background: transparent; }
.btn-success { background: linear-gradient(180deg, #34d27a, var(--success)); border-color: transparent; color: #06210f; font-weight: 700; }
.btn-freeze {
  background: linear-gradient(180deg, #45e6f5, var(--freeze));
  border-color: transparent; color: #042026; font-weight: 800; letter-spacing: 1px;
  box-shadow: 0 0 0 0 rgba(18,208,230,.6);
}
.btn-freeze:not(:disabled) { animation: pulse 1.4s infinite; }
@keyframes pulse { 0%{ box-shadow: 0 0 0 0 rgba(18,208,230,.5) } 70%{ box-shadow: 0 0 0 16px rgba(18,208,230,0) } 100%{ box-shadow: 0 0 0 0 rgba(18,208,230,0) } }

.btn-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 22px; }

/* -------- Game stage -------- */
.stage-wrap { margin: 0 auto; }
.stage {
  position: relative;
  width: 100%;
  aspect-ratio: 854 / 480;
  background: #000;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}
.stage video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; background:#000; }
.overlay-layer { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.overlay-layer.draw { pointer-events: auto; cursor: crosshair; touch-action: none; }
.overlay-layer.fx { z-index: 5; }

/* Countdown */
.countdown {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  background: rgba(4,8,20,.55); z-index: 6;
}
.countdown span {
  font-size: 140px; font-weight: 900; color: #fff;
  text-shadow: 0 0 40px var(--freeze);
  animation: pop .9s ease-out;
}
@keyframes pop { 0%{ transform: scale(.3); opacity: 0 } 30%{ transform: scale(1.1); opacity: 1 } 100%{ transform: scale(1); opacity: .9 } }

/* Result */
.result {
  position: absolute; inset: 0; z-index: 7;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: rgba(6,10,24,.78); backdrop-filter: blur(3px); text-align: center; padding: 20px;
}
.result-emoji { font-size: 72px; animation: pop .6s ease-out; }
.result h2 { font-size: 40px; margin: 6px 0 4px; }
.result.win h2 { color: #ffe27a; text-shadow: 0 0 30px #ff8a3c; }
.result.lose h2 { color: #ff8a8a; }

/* -------- Controls -------- */
.controls { margin-top: 18px; text-align: center; }
.controls.edit {
  text-align: left; background: var(--card); border: 1px solid var(--line);
  border-radius: 14px; padding: 14px 16px; margin-top: 14px;
}
.edit-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
.edit-row:last-child { margin-bottom: 0; }
.edit-row label { font-size: 14px; color: var(--muted); display: inline-flex; align-items: center; gap: 6px; }
.tool-label { font-weight: 700; color: var(--text); }
.frame-readout { font-size: 14px; color: var(--muted); font-variant-numeric: tabular-nums; }
.frame-readout b { color: var(--text); }
.seek { width: 100%; margin: 0 0 12px; accent-color: var(--primary); }
.win-window input { width: 60px; background:#0c1330; border:1px solid var(--line); color:var(--text); border-radius:8px; padding:6px; }
.chk { cursor: pointer; }
.pill { background:#0c1330; border:1px solid var(--line); padding:4px 12px; border-radius:99px; font-size:13px; font-weight:700; }
.edit-status { font-size: 13px; color: var(--muted); }

/* -------- Modal -------- */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(4,8,20,.7); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center; z-index: 50;
}
.modal {
  background: linear-gradient(180deg, var(--card), var(--bg2));
  border: 1px solid var(--line); border-radius: 16px; padding: 26px; width: 360px; max-width: 92vw;
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}
.modal h3 { margin: 0 0 6px; }
.modal input[type=password] {
  width: 100%; margin: 14px 0 6px; padding: 12px; font-size: 20px; letter-spacing: 6px; text-align: center;
  background: #0c1330; border: 1px solid var(--line); color: var(--text); border-radius: 10px;
}

@media (max-width: 620px) {
  .loader-card h1 { font-size: 26px; }
  .countdown span { font-size: 96px; }
  .result h2 { font-size: 30px; }
}