:root {
  --bg: #f3efe6;
  --bg-accent: #e7e0d2;
  --ink: #1c1915;
  --muted: #5c564c;
  --line: #cfc6b6;
  --card: #fffdf8;
  --accent: #0b6e4f;
  --accent-soft: #d7eee4;
  --warn: #8a4b08;
  --best: #0b6e4f;
  --shadow: 0 10px 30px rgba(28, 25, 21, 0.06);
  --radius: 14px;
  --font: "IBM Plex Sans", sans-serif;
  --mono: "IBM Plex Mono", monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(circle at 10% -10%, #f7f2e6 0%, transparent 40%),
    radial-gradient(circle at 90% 0%, #dfece6 0%, transparent 35%),
    linear-gradient(180deg, #f7f3ea 0%, var(--bg) 45%, #ebe4d7 100%);
  min-height: 100vh;
}

.page {
  width: min(1200px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
}

.header h1 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  letter-spacing: -0.03em;
}

.subtitle {
  margin: 0.4rem 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.meta {
  margin: 0.55rem 0 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.82rem;
}

.panel {
  margin-top: 1.25rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem 1.35rem 1.4rem;
}

.panel h2 {
  margin: 0 0 1rem;
  font-size: 1.15rem;
}

.panel h3 {
  margin: 1.1rem 0 0.7rem;
  font-size: 0.95rem;
}

.grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

label span {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--muted);
  font-size: 0.86rem;
}

input[type="number"] {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.7rem 0.8rem;
  font: 500 1rem var(--mono);
  color: var(--ink);
  background: #fff;
}

input[type="number"]:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 35%, white);
  border-color: var(--accent);
}

input[readonly] {
  background: var(--bg-accent);
}

.hint {
  margin: 0.7rem 0 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.45;
}

.hint.warn {
  color: var(--warn);
  font-weight: 500;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem 1.2rem;
  margin-top: 1.1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.check {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.92rem;
}

.breakdown-grid {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.breakdown-card {
  background: linear-gradient(180deg, #fff 0%, #f7f3ea 100%);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.9rem 1rem;
}

.breakdown-card h3 {
  margin: 0 0 0.6rem;
  font-size: 0.95rem;
}

.breakdown-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.breakdown-card li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.28rem 0;
  border-bottom: 1px dashed var(--line);
  font-family: var(--mono);
  font-size: 0.88rem;
}

.breakdown-card li:last-child {
  border-bottom: 0;
  font-weight: 600;
}

.results-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}

.results-head p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.table-wrap {
  overflow-x: auto;
  margin-top: 0.5rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th, td {
  padding: 0.65rem 0.55rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

td.num, th.num {
  text-align: right;
  font-family: var(--mono);
}

tbody tr:hover {
  background: #f7f3ea;
}

tbody tr.best {
  background: var(--accent-soft);
}

tbody tr.best td:last-child,
tbody tr.best .total {
  color: var(--best);
  font-weight: 700;
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  background: var(--bg-accent);
  font-size: 0.75rem;
  font-weight: 600;
}

.badge.z4 { background: #e4eef8; }
.badge.z2 { background: #e8f0e4; }
.badge.z1 { background: #f1e8da; }

.footer {
  margin-top: 1.5rem;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

@media (max-width: 900px) {
  .grid,
  .grid-4,
  .breakdown-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .page {
    width: min(100% - 1rem, 1200px);
    padding-top: 1.2rem;
  }

  .grid,
  .grid-2,
  .grid-4,
  .breakdown-grid {
    grid-template-columns: 1fr;
  }
}