:root {
  --bg: #f7f2ea;
  --card: #fffdf9;
  --text: #2b2118;
  --muted: #7a6a5a;
  --border: #e6dccd;
  --accent: #b5652b;
  --accent-soft: #f3e3d3;
  --input-bg: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1713;
    --card: #25201b;
    --text: #f1e9df;
    --muted: #a8998a;
    --border: #3a322a;
    --accent: #e08a4c;
    --accent-soft: #3a2a1d;
    --input-bg: #1e1a16;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

h1 { font-size: 1.6rem; margin: 0 0 4px; }
h2 { font-size: 1rem; margin: 0 0 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
.sub { margin: 0 0 20px; color: var(--muted); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  margin-bottom: 16px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.field { display: flex; flex-direction: column; gap: 4px; font-size: .9rem; }
.field.hidden { display: none; }

.input {
  display: flex;
  align-items: center;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0 12px;
}
.input:focus-within { border-color: var(--accent); }
.input input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 1.1rem;
  padding: 10px 0;
  outline: none;
}
.input em { font-style: normal; color: var(--muted); }

.segmented {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 14px;
}
.segmented label {
  padding: 8px 14px;
  cursor: pointer;
  font-size: .9rem;
}
.segmented input { position: absolute; opacity: 0; pointer-events: none; }
.segmented label:has(input:checked) { background: var(--accent); color: #fff; }

.presets { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 14px; font-size: .9rem; color: var(--muted); }
.presets button {
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text);
  border-radius: 999px;
  padding: 4px 12px;
  font: inherit;
  cursor: pointer;
}
.presets button.active { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }

table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { padding: 10px 6px; text-align: right; border-bottom: 1px solid var(--border); }
th:first-child, td:first-child { text-align: left; }
thead th { font-size: .8rem; color: var(--muted); font-weight: 600; }
tbody td:last-child { font-size: 1.25rem; font-weight: 700; }
tfoot th { border-bottom: 0; font-size: 1.05rem; }

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin-top: 16px;
}
.stats div {
  background: var(--accent-soft);
  border-radius: 10px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
}
.stats span { font-size: .8rem; color: var(--muted); }
.stats strong { font-size: 1.3rem; font-variant-numeric: tabular-nums; }
.stats small { font-size: .72rem; color: var(--muted); }

.link {
  margin-top: 14px;
  background: none;
  border: 0;
  padding: 0;
  color: var(--accent);
  font: inherit;
  font-size: .9rem;
  cursor: pointer;
  text-decoration: underline;
}

footer { color: var(--muted); font-size: .85rem; text-align: center; }

.tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  margin: 0 0 16px;
  padding-bottom: 4px;
  scrollbar-width: thin;
}
.tabs button {
  flex: 0 0 auto;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 14px;
  font: inherit;
  font-size: .9rem;
  cursor: pointer;
  white-space: nowrap;
}
.tabs button[aria-selected="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }

.panel[hidden],
.stats[hidden] { display: none; }

.select {
  width: 100%;
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
  margin-bottom: 14px;
}

td small { display: block; font-size: .75rem; font-weight: 400; color: var(--muted); }

.note {
  color: var(--muted);
  font-size: .88rem;
  margin: 0 0 16px;
  padding: 0 4px;
}