:root {
  --bg0: #030711;
  --bg1: #07111f;
  --panel: rgba(8, 18, 32, 0.84);
  --panel2: rgba(12, 27, 46, 0.92);
  --line: rgba(118, 202, 255, 0.22);
  --text: #e8f6ff;
  --muted: #8faabc;
  --cyan: #00e5ff;
  --green: #20ff9d;
  --red: #ff4d6d;
  --yellow: #ffd166;
  --purple: #9b5cff;
  --shadow: 0 24px 80px rgba(0,0,0,.45);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  overflow: hidden;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 10%, rgba(0,229,255,.13), transparent 28%),
    radial-gradient(circle at 90% 12%, rgba(155,92,255,.14), transparent 30%),
    radial-gradient(circle at 50% 100%, rgba(32,255,157,.08), transparent 40%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
}

.back-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  display: inline-block;
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.2);
  color: var(--text);
  text-decoration: none;
  background: rgba(2, 8, 16, .7);
  backdrop-filter: blur(8px);
  box-shadow: 0 8px 20px rgba(0,0,0,.25);
}
.back-link:hover {
  border-color: rgba(0,229,255,.45);
}
button, select, input { font: inherit; }
button {
  border: 1px solid rgba(255,255,255,.13);
  color: var(--text);
  background: linear-gradient(180deg, rgba(255,255,255,.11), rgba(255,255,255,.04));
  border-radius: 14px;
  padding: 10px 14px;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(0,0,0,.23);
  transition: transform .12s ease, border-color .12s ease, filter .12s ease;
}
button:hover { transform: translateY(-1px); border-color: rgba(0,229,255,.45); filter: brightness(1.12); }
button:active { transform: translateY(1px) scale(.99); }
button.primary {
  background: linear-gradient(135deg, rgba(0,229,255,.95), rgba(32,255,157,.78));
  color: #031017;
  font-weight: 950;
  border: none;
}

#app { height: 100vh; display: grid; grid-template-rows: 78px 1fr 35px; }
#topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 18px 12px; border-bottom: 1px solid rgba(255,255,255,.08);
  backdrop-filter: blur(16px); background: rgba(2,8,16,.52); z-index: 5;
}
.brand { display: flex; align-items: center; gap: 13px; min-width: 390px; }
.logoPulse {
  width: 42px; height: 42px; border-radius: 14px;
  background: radial-gradient(circle at 30% 30%, #fff, transparent 18%), linear-gradient(135deg, var(--cyan), var(--purple) 52%, var(--green));
  box-shadow: 0 0 25px rgba(0,229,255,.45), inset 0 0 18px rgba(255,255,255,.25);
  animation: pulse 1.4s ease-in-out infinite alternate;
}
@keyframes pulse { from { transform: scale(.98); filter: saturate(1); } to { transform: scale(1.05); filter: saturate(1.45); } }
.title { font-size: 18px; line-height: 1; font-weight: 950; letter-spacing: .11em; }
.vtag { color: var(--green); font-size: 12px; vertical-align: top; }
.subtitle { margin-top: 6px; font-size: 12px; color: var(--muted); letter-spacing: .04em; }
.hudGrid { display: grid; grid-template-columns: repeat(5, minmax(84px, 1fr)); gap: 9px; min-width: 570px; }
.hudGrid div { border: 1px solid rgba(255,255,255,.08); background: rgba(255,255,255,.045); border-radius: 14px; padding: 8px 10px; }
.hudGrid span { display:block; color:var(--muted); font-size:11px; text-transform:uppercase; letter-spacing:.09em; }
.hudGrid b { display:block; margin-top:2px; font-size:17px; }

#gameShell { position: relative; overflow: hidden; }
#game { position:absolute; inset:0; width:100%; height:100%; cursor: crosshair; }
#game.dragging { cursor: grabbing; }

.overlay { position:absolute; inset:0; display:none; align-items:center; justify-content:center; z-index:50; background: radial-gradient(circle at center, rgba(0,0,0,.30), rgba(0,0,0,.76)); backdrop-filter: blur(10px); }
.overlay.show { display:flex; }
.panel { width:min(940px, calc(100vw - 40px)); border:1px solid rgba(255,255,255,.14); background: linear-gradient(180deg, rgba(11,25,42,.96), rgba(6,14,27,.96)); box-shadow: var(--shadow); border-radius:28px; padding:28px; }
.smallPanel { width:min(420px, calc(100vw - 40px)); text-align:center; }
.heroPanel h1, .endPanel h1 { font-size:clamp(34px, 6vw, 72px); line-height:.95; letter-spacing:-.06em; margin:14px 0; }
.heroPanel p { color:#b9d2e2; font-size:18px; line-height:1.45; max-width:780px; }
.badge { display:inline-block; color:#021017; background: linear-gradient(135deg, var(--cyan), var(--green)); border-radius:999px; padding:7px 12px; font-weight:950; letter-spacing:.08em; text-transform:uppercase; font-size:11px; }
.settingsGrid { display:grid; grid-template-columns:repeat(3, minmax(0, 1fr)); gap:14px; margin:22px 0 18px; }
.settingsGrid label { display:flex; flex-direction:column; gap:8px; color:var(--muted); font-size:12px; text-transform:uppercase; letter-spacing:.08em; }
select, input[type="file"], input[type="text"] { border-radius:14px; border:1px solid rgba(255,255,255,.12); background:rgba(255,255,255,.065); color:var(--text); padding:10px; text-transform:none; letter-spacing:0; }
input[type="range"] { width:100%; accent-color:var(--cyan); }
#speedLabel, #volumeLabel { color:#dcefff; font-size:13px; letter-spacing:0; text-transform:none; }
.buttonRow { display:flex; gap:10px; flex-wrap:wrap; }
.finePrint { margin-top:14px; color:var(--muted); font-size:12px; }
code { color: var(--green); }

#floatingHud { position:absolute; left:18px; top:16px; z-index:10; display:flex; gap:8px; align-items:center; pointer-events:none; }
.pill { padding:8px 13px; border-radius:999px; background: rgba(4,13,23,.82); border:1px solid rgba(255,255,255,.12); color:#eaf8ff; font-weight:950; letter-spacing:.03em; box-shadow:0 10px 30px rgba(0,0,0,.25); }
.sonicPill { color: var(--cyan); border-color: rgba(0,229,255,.28); }

#sonicPanel { position:absolute; right:18px; top:16px; width:410px; max-width:calc(100vw - 36px); z-index:12; border:1px solid rgba(255,255,255,.13); border-radius:24px; background: rgba(8,18,32,.85); backdrop-filter: blur(14px); box-shadow: var(--shadow); overflow:hidden; }
.sonicHeader { display:flex; align-items:center; justify-content:space-between; gap:12px; padding:14px 14px 12px; border-bottom:1px solid rgba(255,255,255,.09); }
.sonicHeader b, .deckTitle { display:block; font-size:14px; font-weight:950; letter-spacing:.15em; }
.sonicHeader span, .deckSub { display:block; color:#a9bfd0; font-size:12px; margin-top:4px; }
#choiceCards { display:flex; flex-direction:column; gap:10px; padding:12px; }
.choiceCard { border:1px solid rgba(255,255,255,.09); border-radius:16px; padding:12px; background:rgba(255,255,255,.045); cursor:pointer; transition:transform .12s ease, border-color .12s ease, background .12s ease; }
.choiceCard:hover { transform:translateY(-1px); border-color:rgba(0,229,255,.40); background:rgba(0,229,255,.08); }
.choiceCard.call { background:linear-gradient(90deg, rgba(32,255,157,.17), rgba(255,255,255,.04)); }
.choiceCard.put { background:linear-gradient(90deg, rgba(255,77,109,.15), rgba(255,255,255,.04)); }
.choiceTop { display:flex; justify-content:space-between; align-items:center; gap:10px; font-size:16px; font-weight:950; }
.choiceMeta { display:grid; grid-template-columns:1fr 1fr 1.2fr; gap:8px; margin-top:10px; color:#b9d2e2; font-size:11px; text-transform:uppercase; letter-spacing:.08em; }
.choiceMeta b { color:#fff; font-size:12px; letter-spacing:0; }

#positionPanel { position:absolute; left:18px; bottom:168px; width:440px; max-width:calc(100vw - 470px); z-index:13; border:1px solid rgba(255,255,255,.12); border-radius:20px; background: rgba(7,17,31,.86); backdrop-filter: blur(14px); box-shadow: var(--shadow); overflow:hidden; cursor:pointer; }
.positionHeader { display:flex; justify-content:space-between; padding:11px 14px; color:#a9bfd0; font-size:11px; text-transform:uppercase; letter-spacing:.14em; border-bottom:1px solid rgba(255,255,255,.08); }
.positionHeader span { color:var(--cyan); }
#positionBody { padding:14px; font-size:14px; line-height:1.35; }
.posGood { color:var(--green); font-weight:950; }
.posBad { color:var(--red); font-weight:950; }

#tradeDeck { position:absolute; left:18px; right:18px; bottom:14px; min-height:136px; z-index:11; border:1px solid rgba(255,255,255,.12); border-radius:22px; background: rgba(7,15,27,.88); backdrop-filter: blur(14px); box-shadow: var(--shadow); overflow:hidden; }
.tradeTop { display:flex; justify-content:space-between; align-items:center; gap:12px; padding:11px 14px 9px; border-bottom:1px solid rgba(255,255,255,.08); }
.deckControls { display:flex; gap:10px; align-items:center; color:#a9bfd0; font-size:12px; }
.deckControls label { display:flex; gap:7px; align-items:center; }
.deckControls select { padding:6px 9px; border-radius:10px; }
#optionChain { display:grid; grid-template-columns: repeat(9, minmax(100px, 1fr)); gap:8px; padding:10px 12px 12px; overflow:hidden; }
.chainCol { border:1px solid rgba(255,255,255,.08); border-radius:15px; overflow:hidden; background:rgba(255,255,255,.035); min-width:98px; }
.strikeHead { text-align:center; font-weight:950; color:#e8f6ff; padding:6px 4px; background:rgba(255,255,255,.06); border-bottom:1px solid rgba(255,255,255,.08); }
.optBtn { width:100%; border:0; border-radius:0; box-shadow:none; display:flex; justify-content:space-between; gap:6px; padding:8px 8px; font-size:12px; background:rgba(255,255,255,.025); }
.optBtn.call { color:var(--green); }
.optBtn.put { color:var(--red); border-top:1px solid rgba(255,255,255,.08); }
.optBtn .small { color:#a9bfd0; font-size:10px; display:block; text-align:right; }
.optBtn:hover { transform:none; background:rgba(0,229,255,.09); }
.atm .strikeHead { color:#06101b; background:linear-gradient(135deg, var(--cyan), var(--green)); }

#controls { display:flex; align-items:center; justify-content:space-between; gap:16px; padding:0 12px; color:#9bb0c2; font-size:12px; background:rgba(2,7,13,.74); border-top:1px solid rgba(255,255,255,.08); }
#highScoreLine { white-space:nowrap; }
.endStats { display:grid; grid-template-columns:repeat(2, minmax(150px, 1fr)); gap:10px; margin:16px 0 20px; }
.endStats div { border:1px solid rgba(255,255,255,.10); background:rgba(255,255,255,.05); border-radius:16px; padding:12px; }
.endStats span { display:block; color:var(--muted); font-size:11px; text-transform:uppercase; letter-spacing:.12em; }
.endStats b { display:block; font-size:22px; margin-top:5px; }

@media (max-width: 1180px) {
  #sonicPanel { width:360px; }
  #positionPanel { max-width:calc(100vw - 400px); }
  #optionChain { grid-template-columns: repeat(6, minmax(100px, 1fr)); overflow:auto; }
  .hudGrid { min-width:500px; grid-template-columns: repeat(5, minmax(70px, 1fr)); }
}
@media (max-width: 900px) {
  #app { grid-template-rows: 120px 1fr 48px; }
  #topbar { align-items:flex-start; flex-direction:column; gap:10px; }
  .hudGrid { min-width:0; width:100%; }
  #sonicPanel { top:94px; right:10px; left:10px; width:auto; }
  #positionPanel { left:10px; right:10px; bottom:180px; width:auto; max-width:none; }
  .settingsGrid { grid-template-columns:1fr; }
  #optionChain { grid-template-columns: repeat(4, minmax(100px, 1fr)); overflow:auto; }
}