:root {
  --bg: #f6f7f9; --panel: #fff; --ink: #11151c; --muted: #5d6673; --line: #e3e6eb;
  --blue: #2271e3; --deep: #0f3bc4; --pale: #eaf1fd; --int: #f0a33a; --bad: #b42318; --bad-soft: #fdecea;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1216; --panel: #161a20; --ink: #e7eaee; --muted: #98a2ae; --line: #262c34; --blue: #7aa2ff; --deep: #a9c2ff; --pale: #1b2540; --int: #e8b44a; --bad: #ff7b6e; --bad-soft: #341815; color-scheme: dark; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 var(--sans); }
a { color: var(--blue); }
h1, h2, h3 { letter-spacing: -0.02em; line-height: 1.15; }

.top { display: flex; align-items: center; gap: 8px 20px; flex-wrap: wrap; padding: 14px 20px; background: var(--panel); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); text-decoration: none; font-size: 18px; }
.logo { width: 24px; height: 24px; border-radius: 6px; background: var(--blue) url(../favicon.svg) center / cover; }
.tag { margin: 0; color: var(--muted); font-size: 14px; flex: 1; min-width: 220px; }
.top nav a { font-size: 14px; text-decoration: none; }
.foot { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 6px 24px; padding: 18px 20px 28px; color: var(--muted); font-size: 13px; }
.loading { padding: 40px 20px; color: var(--muted); }

main { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.hero { padding: 36px 0 20px; max-width: 760px; }
.hero h1 { font-size: clamp(28px, 4.4vw, 46px); margin: 0 0 12px; }
.hl { color: var(--blue); }
.lead { color: var(--muted); font-size: 17px; margin: 0; }

.grid { display: grid; grid-template-columns: minmax(300px, 380px) minmax(0, 1fr); gap: 20px; align-items: start; }
@media (max-width: 900px) { .grid { grid-template-columns: 1fr; } }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 18px; min-width: 0; }

.form { display: grid; gap: 12px; position: sticky; top: 12px; }
@media (max-width: 900px) { .form { position: static; } }
label { display: grid; gap: 4px; font-size: 13.5px; color: var(--muted); font-weight: 550; }
input, select { font: inherit; color: var(--ink); background: var(--bg); border: 1px solid var(--line); border-radius: 9px; padding: 9px 10px; min-height: 42px; width: 100%; }
input:focus-visible, select:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.more summary { cursor: pointer; color: var(--blue); font-weight: 600; font-size: 14px; padding: 4px 0; }
.more[open] { display: grid; gap: 12px; }
.extras { border: 1px dashed var(--line); border-radius: 10px; padding: 10px; display: grid; gap: 8px; margin: 0; }
.extras legend { font-size: 13.5px; color: var(--muted); font-weight: 550; padding: 0 4px; }
.extra { display: grid; grid-template-columns: 1fr 1fr auto; gap: 8px; align-items: end; }

button { font: inherit; font-weight: 600; font-size: 14px; border-radius: 999px; border: 1px solid var(--blue); background: var(--blue); color: #fff; padding: 9px 16px; min-height: 40px; cursor: pointer; }
@media (prefers-color-scheme: dark) { button { color: #0b1020; } }
button.ghost { background: transparent; color: var(--blue); }

.results { display: grid; gap: 16px; }
.figures { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
@media (max-width: 560px) { .figures { grid-template-columns: 1fr; } }
.figures > div { display: grid; gap: 2px; padding: 12px 14px; border-radius: 12px; background: var(--bg); }
.figures .truth { background: var(--pale); }
.k { font-size: 13px; color: var(--muted); font-weight: 600; }
.v { font-size: clamp(22px, 2.6vw, 30px); font-weight: 700; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.truth .v { color: var(--blue); }
.s { font-size: 13px; color: var(--muted); }
.callout { margin: 0; padding: 12px 14px; border-left: 4px solid var(--int); background: var(--bg); border-radius: 8px; }
.problems { padding: 12px 14px; border-radius: 10px; background: var(--bad-soft); color: var(--bad); }
.problems ul { margin: 6px 0 0; padding-left: 20px; }

.chart { margin: 0; }
.chart svg { width: 100%; height: 180px; display: block; background: var(--bg); border-radius: 10px; }
.bp { fill: var(--blue); opacity: 0.35; }
.bi { fill: var(--int); opacity: 0.8; }
polyline.bal { fill: none; stroke: var(--blue); stroke-width: 2.5; vector-effect: non-scaling-stroke; }
.chart figcaption { display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: center; font-size: 13px; color: var(--muted); margin-top: 6px; }
.sw { display: inline-block; width: 12px; height: 12px; border-radius: 3px; }
.sw.bal { background: var(--blue); height: 3px; }
.sw.bp { background: var(--blue); opacity: 0.35; }
.sw.bi { background: var(--int); }

.actions { display: flex; gap: 10px; flex-wrap: wrap; }
.table { border: 1px solid var(--line); border-radius: 10px; overflow: hidden; font-size: 14px; }
.tbody { max-height: 420px; overflow: auto; }
.tr { display: grid; grid-template-columns: 3rem 7.5rem repeat(4, minmax(0, 1fr)); gap: 8px; padding: 0 12px; height: 34px; align-items: center; border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums; }
.tr span:nth-child(n+3) { text-align: right; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.th { background: var(--bg); color: var(--muted); font-weight: 600; font-size: 12.5px; }
@media (max-width: 560px) { .table { overflow-x: auto; } .tr { grid-template-columns: 2.4rem 6.5rem repeat(4, 6.5rem); width: max-content; min-width: 100%; } .tbody { overflow-x: visible; } }
.note { margin: -8px 0 0; font-size: 13px; color: var(--muted); }

.explain { padding: 40px 0 20px; }
.explain h2 { font-size: 26px; margin: 0 0 14px; }
.cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
@media (max-width: 760px) { .cols { grid-template-columns: 1fr; } }
.cols h3 { margin: 0 0 6px; font-size: 17px; }
.cols p { margin: 0; color: var(--muted); }

#blazor-error-ui { display: none; position: fixed; inset: auto 0 0 0; padding: 12px 20px; background: var(--bad-soft); color: var(--bad); z-index: 10; }
#blazor-error-ui.show, .blazor-error-boundary { display: block; }
.hint { margin: 4px 0 0; font-size: 13px; color: var(--muted); }