:root {
  --bg: #0B0E14;
  --panel: #131825;
  --panel-2: #1A2030;
  --border: #2A3142;
  --border-soft: #1C2230;
  --text: #E8ECF4;
  --text-2: #C5CCDA;
  --muted: #8A94A8;
  --dim: #4A5468;
  --pos: #22C55E;
  --pos-dim: #16A34A;
  --neg: #EF4444;
  --neg-dim: #DC2626;
  --spot: #FACC15;
  --accent: #3B82F6;
  --radius: 8px;
  --font-ui: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, Menlo, Consolas, monospace;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.mono { font-family: var(--font-mono); }
.pos { color: var(--pos); }
.neg { color: var(--neg); }
.spot-c { color: var(--spot); }
.muted { color: var(--muted); }

/* ---------- Header ---------- */
.site-header {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 12px 24px;
  border-bottom: 1px solid var(--border-soft);
  background: rgba(11, 14, 20, 0.92);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(6px);
}

.logo {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}
.logo em { color: var(--pos); font-style: normal; }

.tool-toggle {
  display: flex;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-left: 8px;
}
.tool-toggle a {
  padding: 7px 16px;
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  transition: color .15s, background .15s;
  white-space: nowrap;
}
.tool-toggle a:hover { color: var(--text-2); }
.tool-toggle a.active {
  background: #1D2B3F;
  color: var(--text);
}

/* Data-source label + one-click switch (Yahoo <-> marketdata.app) */
.source-toggle {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: inherit;
  font-size: 12px;
  color: var(--dim);
  background: none;
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  padding: 4px 11px;
  cursor: pointer;
  transition: border-color .15s, color .15s;
}
.source-toggle:hover { border-color: var(--border); color: var(--text-2); }
.source-toggle .src-switch { color: var(--accent); font-weight: 600; }
.source-toggle:hover .src-switch { text-decoration: underline; }
/* highlight the whole label green when the new marketdata.app feed is live */
.source-toggle[data-src="md"] { color: var(--pos); border-color: rgba(34, 197, 94, .4); }
.source-toggle[data-src="md"] .src-name { color: var(--pos); }

/* ---------- Layout ---------- */
.page { flex: 1; width: 100%; max-width: 1240px; margin: 0 auto; padding: 24px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 16px;
  position: relative;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 16px;
}

/* ---------- Controls ---------- */
.input, select.input {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 14px;
  padding: 8px 12px;
  outline: none;
  min-width: 0;
}
.input:focus { border-color: var(--accent); }
.input::placeholder { color: var(--dim); font-family: var(--font-ui); }

.btn {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-2);
  font-family: var(--font-ui);
  font-size: 13px;
  padding: 8px 14px;
  cursor: pointer;
  transition: background .15s, border-color .15s;
}
.btn:hover { border-color: var(--accent); color: var(--text); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn:disabled { opacity: .45; cursor: default; }

.seg {
  display: flex;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.seg button {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 13px;
  font-family: var(--font-ui);
  padding: 8px 14px;
  cursor: pointer;
}
.seg button.active { background: #1D2B3F; color: var(--text); }

.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 14px;
  cursor: pointer;
  transition: all .15s;
  user-select: none;
}
.chip:hover { border-color: var(--accent); }
.chip.active {
  background: rgba(59, 130, 246, 0.15);
  border-color: var(--accent);
  color: var(--text);
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.35);
  cursor: grab;
  transition: box-shadow .15s, transform .1s;
}
input[type="range"]::-webkit-slider-thumb:hover { box-shadow: 0 0 0 5px rgba(59, 130, 246, 0.18); }
input[type="range"]:active::-webkit-slider-thumb { cursor: grabbing; transform: scale(1.1); }
input[type="range"]::-moz-range-thumb {
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  cursor: grab;
  transition: box-shadow .15s;
}
input[type="range"]::-moz-range-thumb:hover { box-shadow: 0 0 0 5px rgba(59, 130, 246, 0.18); }

/* ---------- Stats bar ---------- */
.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  font-size: 12px;
  color: var(--muted);
  align-items: baseline;
}
.stats .v { font-family: var(--font-mono); font-size: 14px; color: var(--text); }

/* ---------- Tables ---------- */
.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th {
  text-align: right;
  font-weight: 500;
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .04em;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border-soft);
}
.tbl td {
  text-align: right;
  font-family: var(--font-mono);
  padding: 6px 8px;
  border-bottom: 1px solid var(--border-soft);
}
.tbl th:first-child, .tbl td:first-child { text-align: left; }

/* ---------- Landing ---------- */
.hero { text-align: center; padding: 64px 16px 48px; }
.hero h1 { font-size: 40px; font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
.hero h1 em { color: var(--pos); font-style: normal; }
.hero p { color: var(--muted); max-width: 560px; margin: 16px auto 28px; font-size: 16px; }

.tool-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}
.tool-card {
  display: block;
  background: var(--panel);
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  padding: 24px;
  text-decoration: none;
  color: var(--text);
  transition: border-color .2s, transform .2s;
}
.tool-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.tool-card h2 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.tool-card p { color: var(--muted); font-size: 14px; margin-bottom: 16px; }
.tool-card .cta { color: var(--accent); font-size: 13px; }
.tool-card svg { width: 100%; height: 110px; margin-bottom: 14px; }

.explainer { max-width: 720px; margin: 64px auto 0; }
.explainer h2 { font-size: 22px; margin-bottom: 12px; }
.explainer h3 { font-size: 16px; margin: 24px 0 8px; }
.explainer p { color: var(--text-2); font-size: 14px; margin-bottom: 12px; }

/* ---------- Pricer layout ---------- */
/* compact legs editor full-width on top, then the chart (~70%) and the live
   readout (~30%) side by side so P/L stays visible while scrubbing the chart */
.chart-panel { position: relative; }

.pricer-legs { padding: 12px 16px; margin-bottom: 14px; }

.pricer-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 16px;
  align-items: start;
  margin-bottom: 10px;
}

.iv-rate-row {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  margin-top: 10px;
}

.pin-badge {
  position: absolute;
  top: 10px;
  right: 14px;
  z-index: 6;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(58, 46, 10, 0.92);
  color: #FACC15;
  border: 1px solid rgba(250, 204, 21, 0.4);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 11px;
  font-family: var(--font-mono);
  cursor: pointer;
}
.pin-badge:hover { background: rgba(58, 46, 10, 1); }

.y-zoom {
  position: absolute;
  bottom: 38px;
  right: 16px;
  z-index: 6;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.y-zoom button {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(19, 24, 37, 0.86);
  color: var(--text-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
}
.y-zoom button:hover { background: var(--panel); color: var(--text); border-color: var(--accent); }

.leg-row {
  display: grid;
  grid-template-columns: 64px 64px 1fr 1fr 52px 58px 28px;
  gap: 6px;
  align-items: center;
  margin-bottom: 6px;
}
.leg-row .input, .leg-row select { font-size: 12px; padding: 6px 8px; }
.leg-price { font-size: 12px; text-align: right; color: var(--muted); white-space: nowrap; }

.net-price { font-size: 13px; font-family: var(--font-mono); }
.net-price b { font-size: 15px; font-weight: 600; }
.leg-remove {
  background: none; border: none; color: var(--dim);
  cursor: pointer; font-size: 16px; line-height: 1;
}
.leg-remove:hover { color: var(--neg); }

.greeks-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 8px;
}
.greek {
  background: var(--panel-2);
  border-radius: var(--radius);
  padding: 8px 10px;
  text-align: center;
}
.greek .l { font-size: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.greek .n { font-family: var(--font-mono); font-size: 14px; }

.result-big { font-family: var(--font-mono); font-size: 24px; font-weight: 600; }

/* ---------- Charts ---------- */
/* touch-action: pan-y lets a one-finger drag scroll the page past the chart,
   while two-finger pinch is left for the chart's own zoom (mobile). */
.chart { width: 100%; border-radius: 6px; cursor: crosshair; touch-action: pan-y; }
.chart > div, .chart canvas { touch-action: pan-y !important; }
#gexChart { height: 600px; }
#priceChart { height: 44vh; min-height: 330px; max-height: 560px; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border-soft);
  padding: 20px 24px;
  font-size: 12px;
  color: var(--dim);
  text-align: center;
}
.site-footer a { color: var(--muted); }

.loading-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--muted);
  font-size: 13px;
  background: rgba(11, 14, 20, 0.72);
  backdrop-filter: blur(2px);
  border-radius: var(--radius);
  z-index: 5;
}
.loading-overlay::before {
  content: '';
  width: 30px;
  height: 30px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: sb-spin 0.7s linear infinite;
}
@keyframes sb-spin { to { transform: rotate(360deg); } }

.err {
  background: rgba(239, 68, 68, .08);
  border: 1px solid rgba(239, 68, 68, .35);
  color: #FCA5A5;
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 12px;
}

/* ---------- Play (paper betting) ---------- */
.play-hero { text-align: center; padding: 40px 16px 28px; }
.play-hero h1 { font-size: 32px; font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
.play-hero h1 em { color: var(--pos); font-style: normal; }
.play-hero p { color: var(--muted); max-width: 620px; margin: 14px auto 0; font-size: 15px; }
.play-hero p b { color: var(--text-2); }

.auth-card { max-width: 380px; margin: 20px auto 40px; }
.auth-seg { margin-bottom: 14px; }
.auth-seg button { flex: 1; }
#authForm { display: flex; flex-direction: column; gap: 10px; }
.auth-note { font-size: 11px; margin-top: 12px; text-align: center; }

.play-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.play-id { display: flex; align-items: baseline; gap: 10px; }
.play-user { font-size: 15px; font-weight: 600; }
.play-stars { color: var(--spot); font-size: 13px; }
.play-balance {
  display: flex; align-items: baseline; gap: 8px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 14px;
}
.play-balance .l { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.play-balance .v { font-size: 15px; font-weight: 600; color: var(--pos); }

.countdown-chip {
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  padding: 5px 14px;
}
.countdown-chip b { color: var(--text); font-weight: 600; }
.countdown-chip.urgent { border-color: rgba(239, 68, 68, .5); color: #FCA5A5; }
.countdown-chip.urgent b { color: #FCA5A5; }
.play-topbar #logoutBtn { margin-left: auto; }

.claim-toast {
  background: rgba(34, 197, 94, .1);
  border: 1px solid rgba(34, 197, 94, .4);
  color: var(--pos);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 12px;
}

.play-tabs { margin-bottom: 14px; display: inline-flex; }

#viewBoard, #viewMybets, #viewLeaderboard { overflow-x: auto; }
.play-board td { white-space: nowrap; }
.play-name { font-family: var(--font-ui); font-size: 11px; }
.play-call { min-width: 118px; }
.bet-btn {
  width: 32px; height: 28px;
  margin-left: 4px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  font-size: 12px;
  cursor: pointer;
  transition: all .12s;
}
.bet-up   { color: var(--pos); }
.bet-flat { color: var(--spot); }
.bet-down { color: var(--neg); }
.bet-up:hover   { border-color: var(--pos); background: rgba(34, 197, 94, .12); }
.bet-flat:hover { border-color: var(--spot); background: rgba(250, 204, 21, .12); }
.bet-down:hover { border-color: var(--neg); background: rgba(239, 68, 68, .12); }
.mybet-chip {
  font-family: var(--font-mono);
  font-size: 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 10px;
  white-space: nowrap;
}

/* board range cards */
.play-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 14px;
}
.play-card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  transition: border-color .15s;
}
.play-card:hover { border-color: rgba(59, 130, 246, .45); }
.pc-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin-bottom: 6px; }
.pc-sym { min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pc-sym b { font-size: 15px; letter-spacing: .02em; }
.pc-name { color: var(--muted); font-size: 11px; margin-left: 8px; }
.pc-quote { display: flex; align-items: baseline; gap: 8px; flex: none; }
.pc-last { font-size: 15px; font-weight: 600; }
.pc-chg { font-size: 12px; font-family: var(--font-mono); }

.pc-chart { display: block; width: 100%; height: auto; }
.pc-chart text { font-family: var(--font-mono); }
.pc-grid { stroke: rgba(255, 255, 255, .055); }
.pc-tick { fill: var(--muted); font-size: 9.5px; text-anchor: end; }
.pc-col { fill: var(--muted); font-size: 8.5px; letter-spacing: .08em; text-anchor: middle; }
.pc-zone { cursor: pointer; transition: fill .12s; }
.pc-up   { fill: rgba(34, 197, 94, .07); }
.pc-flat { fill: rgba(250, 204, 21, .08); }
.pc-down { fill: rgba(239, 68, 68, .07); }
.pc-up:hover   { fill: rgba(34, 197, 94, .17); }
.pc-flat:hover { fill: rgba(250, 204, 21, .18); }
.pc-down:hover { fill: rgba(239, 68, 68, .17); }
.pc-zone.picked { stroke-width: 1.5; }
.pc-up.picked   { fill: rgba(34, 197, 94, .18); stroke: var(--pos); }
.pc-flat.picked { fill: rgba(250, 204, 21, .2);  stroke: var(--spot); }
.pc-down.picked { fill: rgba(239, 68, 68, .18); stroke: var(--neg); }
.has-bet .pc-zone { cursor: default; }
.pc-edge { stroke-width: 1; stroke-dasharray: 4 3; }
.pc-edge-up { stroke: rgba(34, 197, 94, .55); }
.pc-edge-dn { stroke: rgba(239, 68, 68, .55); }
.pc-edget { font-size: 9px; text-anchor: end; }
.pc-edget.up { fill: var(--pos); }
.pc-edget.dn { fill: var(--neg); }
.pc-zlab { font-size: 9px; opacity: .75; pointer-events: none; }
.pc-zlab.up { fill: var(--pos); }
.pc-zlab.dn { fill: var(--neg); }
.pc-zlab.fl { fill: var(--spot); }
.pc-prev { fill: rgba(138, 148, 168, .16); stroke: rgba(138, 148, 168, .45); }
.pc-prevclose { stroke: #C9D3E6; stroke-width: 1.5; }
.pc-wick { stroke: rgba(255, 255, 255, .28); stroke-width: 3; stroke-linecap: round; }
.pc-pricel { stroke: rgba(255, 255, 255, .35); stroke-dasharray: 1 3; }
.pc-dot { fill: #fff; }
.pc-chipbg { fill: var(--panel); stroke: var(--border); }
.pc-chipt { fill: #fff; font-size: 9.5px; font-weight: 600; text-anchor: middle; }

.pc-actions { display: flex; gap: 6px; margin-top: 10px; align-items: stretch; }
.pc-actions .mybet-chip { flex: 1; text-align: center; padding: 8px 10px; }
.pcbet {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; gap: 1px;
  padding: 6px 4px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel);
  cursor: pointer;
  transition: all .12s;
}
.pcbet .a { font-size: 12px; font-weight: 600; }
.pcbet .p { font-family: var(--font-mono); font-size: 9.5px; color: var(--muted); }
.pcbet.bet-up .a   { color: var(--pos); }
.pcbet.bet-flat .a { color: var(--spot); }
.pcbet.bet-down .a { color: var(--neg); }
.pc-fallback { color: var(--muted); font-size: 10px; margin-top: 8px; }
.pc-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--accent);
  border: 1px solid rgba(59, 130, 246, .45);
  border-radius: 4px;
  padding: 1px 4px;
  align-self: center;
}
.play-card.editable .pc-zone { cursor: pointer; }
.pc-editbtn { padding: 6px 12px; font-size: 12px; flex: none; }

.play-note { font-size: 11px; margin-top: 12px; }
.play-h3 { font-size: 14px; margin: 18px 0 8px; color: var(--text-2); }
.play-statcards { margin-bottom: 6px; }
.lb-me td { background: rgba(59, 130, 246, 0.08); }

/* bet slip modal */
.modal-backdrop[hidden] { display: none; }
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(5, 7, 12, 0.72);
  backdrop-filter: blur(2px);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
  padding: 16px;
}
.modal { width: 100%; max-width: 400px; padding: 20px; }
.modal h3 { font-size: 17px; margin-bottom: 12px; }
.slip-summary { font-size: 13px; color: var(--text-2); display: flex; flex-direction: column; gap: 4px; margin-bottom: 16px; }
.slip-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; display: block; margin-bottom: 6px; }
.slip-stake-row { display: flex; gap: 6px; margin-bottom: 10px; }
.slip-stake-row .input { width: 90px; }
.slip-stake-row .btn { padding: 8px 10px; font-family: var(--font-mono); font-size: 12px; }
.slip-payout { font-size: 12px; margin-bottom: 14px; min-height: 18px; }
.slip-actions { display: flex; justify-content: flex-end; gap: 8px; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .pricer-main { grid-template-columns: 1fr; }
  #gexChart { height: 480px; }
  #priceChart { height: 40vh; min-height: 300px; }
  .page { padding: 16px; }
  .hero h1 { font-size: 30px; }
}
@media (max-width: 560px) {
  .site-header { padding: 10px 12px; gap: 10px; }
  .source-toggle { display: none; }
  .tool-toggle a { padding: 7px 10px; font-size: 12px; }
  .leg-row { grid-template-columns: 52px 52px 1fr 1fr 40px 52px 24px; }
  #gexChart { height: 420px; }
}