/* Terminal theme: black screen, amber labels, white figures, yellow inputs, green / red signs. */
:root {
  --bg: #000;
  --panel: #0a0a0a;
  --panel-2: #141414;
  --line: #2a2a2a;
  --amber: #ff9e1b;
  --amber-dim: #b36b00;
  --yellow: #ffd24d;
  --text: #e9e9e9;
  --muted: #8c8c8c;
  --blue: #5fa8ff;
  --up: #3ddc84;
  --down: #ff5c5c;
  --up-bg: rgba(61, 220, 132, 0.14);
  --down-bg: rgba(255, 92, 92, 0.14);
  --input-bg: #1d1a10;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 13px/1.45 "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  font-variant-numeric: tabular-nums;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { font-weight: 600; margin: 0; }
h2 { color: var(--amber); font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; }
p { margin: 0.4em 0; }
.muted { color: var(--muted); }
.amber { color: var(--amber); }
.up { color: var(--up); }
.down { color: var(--down); }
.small { font-size: 11.5px; }
.nowrap { white-space: nowrap; }

/* ---- top bar and function tabs ---- */
.topbar {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  background: var(--amber); color: #000; padding: 4px 12px; font-weight: 700;
}
.topbar .brand { letter-spacing: 0.08em; }
.topbar .fn { background: #000; color: var(--amber); padding: 0 6px; }
.topbar .clock { margin-left: auto; font-weight: 500; }
.tabs { display: flex; flex-wrap: wrap; gap: 2px; background: var(--panel-2); border-bottom: 1px solid var(--line); padding: 0 8px; }
.tabs a, .tabs button {
  color: var(--amber); background: none; border: 0; font: inherit; padding: 6px 12px; cursor: pointer;
  border-bottom: 2px solid transparent; text-decoration: none;
}
.tabs a:hover, .tabs button:hover { background: #1f1f1f; }
.tabs .active { color: #000; background: var(--amber); }
.tabs .code { font-weight: 700; margin-right: 6px; }
.subtabs { background: var(--bg); border-bottom: 1px solid var(--line); }
.subtabs button { padding: 4px 12px; }

main { padding: 12px 16px 32px; max-width: 1680px; margin: 0 auto; }
.page-title { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }
.page-title h1 { color: var(--amber); font-size: 18px; }

/* ---- panels and layout ---- */
.panel { background: var(--panel); border: 1px solid var(--line); padding: 10px 12px; min-width: 0; }
.panel > h2 { margin-bottom: 6px; }
.grid { display: grid; gap: 10px; }
.cols-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 480px), 1fr)); }
.cols-3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }
.hedge-layout { grid-template-columns: minmax(0, 2fr) minmax(0, 3fr); }
@media (max-width: 1100px) { .hedge-layout { grid-template-columns: minmax(0, 1fr); } }
.stack > * + * { margin-top: 10px; }
.row { display: flex; gap: 10px 16px; flex-wrap: wrap; align-items: center; }

/* ---- inputs ---- */
input, select, button { font: inherit; }
input[type="number"], input[type="text"], input[type="search"], select {
  background: var(--input-bg); color: var(--yellow); border: 1px solid #4a3d16; padding: 3px 6px; border-radius: 0;
}
input:focus, select:focus { outline: 1px solid var(--amber); border-color: var(--amber); }
input[type="number"] { width: 7em; text-align: right; }
label { color: var(--amber); }
.btn {
  background: #1c1c1c; color: var(--amber); border: 1px solid #3a3a3a; padding: 3px 10px; cursor: pointer;
}
.btn:hover { border-color: var(--amber); }
.btn.on { background: var(--amber); color: #000; border-color: var(--amber); }
.seg { display: inline-flex; flex-wrap: wrap; gap: 2px; }

/* ---- tables ---- */
.table-wrap { overflow: auto; max-width: 100%; border: 1px solid var(--line); }
.table-wrap.tall { max-height: 70vh; }
table { border-collapse: collapse; width: 100%; }
th, td { padding: 3px 7px; white-space: nowrap; text-align: right; border-bottom: 1px solid #181818; }
.sticky-first td:first-child, .sticky-first th:first-child { position: sticky; left: 0; z-index: 2; background: #0a0a0a; }
.sticky-first th:first-child { z-index: 3; background: #1a1a1a; }
td.extrap { color: var(--muted) !important; background: none !important; font-style: italic; }
th { position: sticky; top: 0; z-index: 1; background: #1a1a1a; color: var(--amber); font-weight: 500; cursor: default; }
th.sortable { cursor: pointer; }
th.sorted::after { content: " ▾"; }
th.sorted.asc::after { content: " ▴"; }
th .unit { color: var(--muted); font-size: 11px; }
td.l, th.l { text-align: left; }
tbody tr:hover td { background: #161616; }
tr.hl td { background: #262010; }
td.edit { padding: 0 2px; }
td.edit input { width: 100%; min-width: 4.8em; border-color: #2e2711; background: transparent; padding: 2px 6px; }
td.edit input:hover { border-color: #5c4a14; }
td.edit input.changed { color: #fff; background: #3a2a00; }
td.pos { color: var(--up); }
td.neg { color: var(--down); }
.th-group { text-align: center; border-bottom: 1px solid var(--amber-dim); }

/* ---- tiles ---- */
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 6px; }
.tile { background: var(--panel-2); border-left: 2px solid var(--amber); padding: 6px 8px; }
.tile .k { color: var(--amber); font-size: 11px; text-transform: uppercase; }
.tile .v { font-size: 16px; }
.tile .n { color: var(--muted); font-size: 11px; }

/* ---- highlighted rows ---- */
tr.ctd td { border-top: 1px solid var(--amber); border-bottom: 1px solid var(--amber); }
tr.ctd td:first-child, .sticky-first tr.ctd td:first-child { background: var(--amber); color: #000; font-weight: 700; }
tr.upcoming td { background: rgba(61, 220, 132, 0.07); }

/* ---- curve editor ---- */
.curve-editor svg { width: 100%; height: auto; display: block; touch-action: none; user-select: none; }
.curve-editor .dot { cursor: ns-resize; }
.curve-editor .dot:hover circle, .curve-editor .dot.sel circle { stroke: #fff; stroke-width: 2; }

.plot { width: 100%; min-height: 260px; }
.note { color: var(--muted); font-size: 11.5px; }
.status { position: sticky; bottom: 0; background: #0d0d0d; border-top: 1px solid var(--line); padding: 3px 16px; color: var(--muted); font-size: 11px; display: flex; gap: 16px; flex-wrap: wrap; }
.status .bad { color: var(--down); }
details > summary { color: var(--amber); cursor: pointer; }
details.method { margin-top: 12px; }
details.method li { margin: 3px 0; }

@media (max-width: 640px) {
  main { padding: 10px 12px 28px; }
  .topbar .clock { margin-left: 0; }
}