:root {
  --bg: #f4f8fb;
  --card: #ffffff;
  --ink: #12263a;
  --muted: #5b6b7c;
  --accent: #0b7fab;
  --accent-ink: #ffffff;
  --sun: #f7b32b;
  --error: #b42318;
  --line: #dde6ee;
}
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--ink); }
.site-header { display: flex; flex-wrap: wrap; align-items: baseline; gap: 12px 24px; padding: 20px 32px; background: var(--ink); color: #fff; }
.brand { font-size: 1.35rem; font-weight: 700; display: flex; align-items: center; gap: 10px; }
.sun { width: 18px; height: 18px; border-radius: 50%; background: var(--sun); box-shadow: 0 0 0 4px rgba(247, 179, 43, .25); }
.tagline { color: #c9d6e2; font-size: .95rem; }
.layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px; max-width: 1100px; margin: 32px auto; padding: 0 16px; }
@media (max-width: 800px) { .layout { grid-template-columns: 1fr; } }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 24px; }
h1 { margin: 0 0 16px; font-size: 1.4rem; }
h2 { margin: 0 0 8px; font-size: 1.2rem; }
h3 { margin: 20px 0 8px; font-size: 1rem; color: var(--muted); }
label { display: block; margin: 0 0 14px; font-weight: 600; }
label.inline { display: inline-flex; align-items: center; gap: 6px; margin-right: 16px; font-weight: 500; }
fieldset { border: 0; margin: 0 0 14px; padding: 0; }
legend { font-weight: 600; margin-bottom: 6px; }
input[type=number], input:not([type]), input[inputmode], select { display: block; width: 100%; margin-top: 6px; padding: 10px 12px; font: inherit; border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--ink); }
button { margin-top: 6px; padding: 12px 20px; font: inherit; font-weight: 700; color: var(--accent-ink); background: var(--accent); border: 0; border-radius: 8px; cursor: pointer; }
button:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid rgba(11, 127, 171, .35); outline-offset: 2px; }
.error { color: var(--error); font-weight: 600; }
.total { font-size: 2.6rem; font-weight: 800; color: var(--accent); }
.total small { font-size: 1rem; color: var(--muted); font-weight: 600; margin-left: 4px; }
table { width: 100%; border-collapse: collapse; }
td { padding: 6px 0; border-bottom: 1px solid var(--line); }
td.amount { text-align: right; font-variant-numeric: tabular-nums; }
.one-time-total { margin-top: 8px; text-align: right; }
.meta { margin-top: 20px; color: var(--muted); font-size: .85rem; }
code { font-size: .85rem; }