:root {
  --bg: #0f1419;
  --panel: #171e26;
  --panel-2: #1f2832;
  --line: #2b3744;
  --text: #e7edf3;
  --muted: #93a1ad;
  --keep: #4f9dde;     /* blue  */
  --sell: #4cc38a;     /* green */
  --warn: #e0b341;
  --accent: #6ea8fe;
  --danger: #e06c6c;
  --radius: 12px;
  --shadow: 0 1px 0 rgba(255,255,255,.03), 0 8px 24px rgba(0,0,0,.25);
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: radial-gradient(1200px 600px at 80% -10%, #1b2a3a 0%, var(--bg) 55%) fixed;
  color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}
.wrap { width: min(1180px, 92vw); margin: 0 auto; }

.topbar { padding: 22px 0 6px; }
.topbar h1 { margin: 0; font-size: 1.5rem; letter-spacing: .2px; }
.topbar .sub { margin: 2px 0 0; color: var(--muted); }

.card {
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel-2) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin: 14px 0;
}
.card h2 { margin: 0 0 10px; font-size: 1rem; font-weight: 600; }
.card h2 .hint, .hint { color: var(--muted); font-weight: 400; font-size: .82rem; }

/* Verdict banner */
.verdict { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.verdict .big { font-size: 1.5rem; font-weight: 700; }
.verdict .who-keep { color: var(--keep); }
.verdict .who-sell { color: var(--sell); }
.verdict .delta { color: var(--muted); }
.verdict .note { color: var(--muted); font-size: .88rem; width: 100%; }

/* Layout: inputs left, results right; stacks on mobile */
.layout { display: grid; grid-template-columns: 320px 1fr; gap: 16px; align-items: start; }
@media (max-width: 860px) { .layout { grid-template-columns: 1fr; } }

.inputs {
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel-2) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 8px 14px 16px;
  position: sticky; top: 12px;
}
@media (max-width: 860px) { .inputs { position: static; } }

.inputs fieldset { border: 0; border-top: 1px solid var(--line); margin: 0; padding: 12px 0 4px; }
.inputs fieldset:first-of-type { border-top: 0; }
.inputs legend { color: var(--accent); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; padding: 8px 0 2px; }

.field { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 8px; margin: 7px 0; }
.field label { color: var(--text); font-size: .9rem; }
.field .suffix { color: var(--muted); font-size: .8rem; }
.field input[type="number"], .field input[type="text"] {
  width: 110px; text-align: right;
  background: #0e141b; color: var(--text);
  border: 1px solid var(--line); border-radius: 8px;
  padding: 6px 8px; font: inherit;
}
.field input:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: transparent; }
.field input.invalid { border-color: var(--danger); }
.field .help { grid-column: 1 / -1; color: var(--muted); font-size: .76rem; margin: -2px 0 2px; }

.toggle { grid-template-columns: 1fr auto; }
.toggle input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--accent); }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.seg button { background: #0e141b; color: var(--muted); border: 0; padding: 6px 10px; font: inherit; cursor: pointer; }
.seg button.on { background: var(--accent); color: #08111c; font-weight: 600; }

.chartbox { position: relative; height: 300px; }
@media (max-width: 860px) { .chartbox { height: 240px; } }

.tablebox { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: .82rem; }
th, td { padding: 6px 8px; text-align: right; white-space: nowrap; border-bottom: 1px solid var(--line); }
th:first-child, td:first-child { text-align: left; position: sticky; left: 0; background: var(--panel-2); }
thead th { color: var(--muted); font-weight: 600; position: sticky; top: 0; background: var(--panel-2); }
tbody tr:hover td { background: rgba(110,168,254,.06); }
td.neg { color: var(--danger); }
td.pos { color: var(--sell); }
tr.final td { font-weight: 700; border-top: 2px solid var(--line); }

.disclaimer { color: var(--muted); font-size: .8rem; margin: 18px 0 40px; }
.warnbar { color: #08111c; background: var(--warn); border-radius: 8px; padding: 8px 12px; margin: 10px 0 0; font-size: .85rem; }