:root {
  --trust-black: #1C252B;
  --white: #FFFFFF;
  --fresh-green: #CFFC54;
  --friendly-purple: #D6DAF3;
  --honest-green: #DAE4D7;
  --expert-green: #597A77;
  --bold-orange: #FF5C00;
  --muted: rgba(255,255,255,.68);
  --panel: rgba(255,255,255,.065);
  --border: rgba(218,228,215,.18);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 12% 8%, rgba(207,252,84,.14), transparent 30rem),
    radial-gradient(circle at 92% 16%, rgba(255,92,0,.12), transparent 22rem),
    linear-gradient(135deg, #141d22, var(--trust-black));
}
.shell { width: min(1320px, calc(100% - 32px)); margin: 0 auto; padding: 24px 0 48px; }
.topbar { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; color: var(--muted); margin: 0 4px 16px; font-size: .9rem; }
.topbar a { color: var(--fresh-green); text-decoration: none; font-weight: 900; }
.hero { display: flex; justify-content: space-between; gap: 20px; align-items: stretch; margin-bottom: 18px; }
.hero > div:first-child, .score-card, .panel { border: 1px solid var(--border); background: var(--panel); border-radius: 28px; box-shadow: 0 24px 80px rgba(0,0,0,.22); }
.hero > div:first-child { flex: 1; padding: 30px; }
.eyebrow { margin: 0 0 8px; color: var(--fresh-green); text-transform: uppercase; font-size: .72rem; font-weight: 900; letter-spacing: .15em; }
h1 { font-size: clamp(2.4rem, 7vw, 5.8rem); line-height: .88; margin: 0 0 16px; }
h2 { margin: 0; font-size: 1.05rem; }
.lede { color: var(--muted); max-width: 780px; line-height: 1.55; margin: 0; font-size: 1.05rem; }
.score-card { min-width: 280px; padding: 26px; display: grid; align-content: center; }
.score-card span, .score-card small { color: var(--muted); }
.score-card strong { font-size: 2.35rem; color: var(--fresh-green); margin: 6px 0; }
.grid { display: grid; grid-template-columns: 360px minmax(0, 1fr); gap: 18px; margin-bottom: 18px; }
.panel { padding: 22px; }
.panel-head { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-bottom: 16px; }
label { display: grid; gap: 8px; color: var(--honest-green); font-weight: 800; margin-bottom: 16px; }
input, select { width: 100%; border: 1px solid var(--border); border-radius: 14px; padding: 12px 13px; background: rgba(0,0,0,.24); color: var(--white); }
input[type="range"] { accent-color: var(--fresh-green); padding: 0; }
button { border: 0; border-radius: 14px; padding: 12px 14px; background: var(--fresh-green); color: var(--trust-black); font-weight: 900; cursor: pointer; }
button:hover { filter: brightness(1.04); transform: translateY(-1px); }
button.secondary { background: var(--friendly-purple); }
button.ghost { background: transparent; color: var(--white); border: 1px solid var(--border); }
.custom-setup { border: 1px solid var(--border); border-radius: 20px; padding: 14px; margin: -4px 0 16px; background: rgba(0,0,0,.16); }
.custom-setup label { margin-bottom: 12px; }
.mini-heading { margin: 0 0 12px; color: var(--fresh-green); font-size: .78rem; text-transform: uppercase; letter-spacing: .12em; font-weight: 900; }
.input-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.custom-summary { color: var(--muted); line-height: 1.4; margin: 2px 0 0; font-size: .88rem; }
.button-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.strategy-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 14px; }
.strategy-buttons button { background: rgba(218,228,215,.12); color: var(--white); border: 1px solid var(--border); }
.note { color: var(--muted); line-height: 1.45; margin: 18px 0 0; font-size: .9rem; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.stats article { border: 1px solid var(--border); background: rgba(255,255,255,.045); border-radius: 20px; padding: 16px; }
.stats span { display: block; color: var(--fresh-green); font-size: 1.35rem; font-weight: 900; }
.stats small { color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
.chart-wrap { border: 1px solid var(--border); border-radius: 22px; background: rgba(0,0,0,.18); padding: 12px; overflow: hidden; }
canvas { display: block; width: 100%; height: auto; }
.result-strip { display: grid; grid-template-columns: .8fr 1.2fr; gap: 12px; margin-top: 16px; }
.result-strip > div { border-radius: 18px; border: 1px solid var(--border); background: rgba(255,255,255,.045); padding: 16px; }
.result-strip strong { color: var(--white); }
.trade-log { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; max-height: 360px; overflow: auto; padding-right: 4px; }
.trade { border: 1px solid var(--border); border-radius: 16px; padding: 12px; background: rgba(255,255,255,.045); }
.trade.win { border-color: rgba(207,252,84,.42); }
.trade.loss { border-color: rgba(255,92,0,.42); }
.trade strong { color: var(--fresh-green); }
.trade.loss strong { color: var(--bold-orange); }
.trade small { display: block; color: var(--muted); margin-top: 4px; }
.bust { color: var(--bold-orange) !important; }
@media (max-width: 900px) {
  .hero, .grid, .result-strip { grid-template-columns: 1fr; display: grid; }
  .score-card { min-width: 0; }
  .stats { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .stats, .button-row, .strategy-buttons, .input-pair { grid-template-columns: 1fr; }
  .shell { width: min(100% - 20px, 1320px); }
}
.panel-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.explainer { margin-top: 18px; }
.explainer p, .explainer li { color: var(--muted); line-height: 1.55; }
.explainer ul { margin: 12px 0 0; padding-left: 1.2rem; }
.explainer strong { color: var(--white); }
.footer { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; color: var(--muted); padding: 20px 4px 0; font-size: .9rem; }
button:disabled { opacity: .5; cursor: not-allowed; transform: none; }