:root {
  --bg: #f4f1ec;
  --card: #ffffff;
  --ink: #1f2328;
  --muted: #6b7280;
  --line: #e7e2da;
  --accent: #2f6f5e;
  --accent-ink: #ffffff;
  --warn-bg: #fdf3e7;
  --warn-ink: #8a4b0f;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171a;
    --card: #1e2125;
    --ink: #e8e6e3;
    --muted: #9aa0a6;
    --line: #2d3136;
    --accent: #5fb49c;
    --accent-ink: #0f1a17;
    --warn-bg: #33261a;
    --warn-ink: #f0b87a;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: start center;
  padding: 12vh 16px 32px;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.card {
  width: 100%;
  max-width: 440px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 32px 28px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

h1 { margin: 0 0 4px; font-size: 1.5rem; letter-spacing: -0.01em; }
.sub { margin: 0 0 24px; color: var(--muted); }

.search { display: flex; gap: 8px; }
.search input {
  flex: 1;
  min-width: 0;
  padding: 12px 14px;
  font: inherit;
  color: inherit;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.search input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.search button {
  padding: 12px 18px;
  font: inherit;
  font-weight: 600;
  color: var(--accent-ink);
  background: var(--accent);
  border: 0;
  border-radius: 10px;
  cursor: pointer;
}
.search button:hover { filter: brightness(1.08); }

.notice {
  margin: 20px 0 0;
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--warn-bg);
  color: var(--warn-ink);
}

.result { margin: 24px 0 0; }
.row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}
.row dt { color: var(--muted); }
.row dd { margin: 0; font-weight: 600; text-align: right; }

.sr-only {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

.total {
  margin: 24px 0 0;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
}
.total-label { color: var(--muted); font-size: 0.9rem; }
.total-value { margin: 2px 0 12px; font-size: 1.25rem; color: var(--muted); }
.total-value strong { font-size: 2.25rem; color: var(--ink); letter-spacing: -0.02em; }
.bar {
  height: 8px;
  border-radius: 999px;
  background: var(--line);
  overflow: hidden;
}
.bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
}
.total + .result { margin-top: 12px; }