:root {
  --purple: #7b68ae;
  --gold: #d4af37;
  --cream: #faf8f5;
  --ink: #2c2c2c;
  --indigo: #1a0a2e;
  --line: #e6e1d8;
  --muted: #6b675f;
  --level: #7b68ae;
  --outflow: #d4af37;
  --inflow: #4a8fb5;
  --storage: #6a9a6a;
  --precip: #7a8ba8;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: "Quicksand", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-weight: 400;
  line-height: 1.5;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

code {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
  background: rgba(123, 104, 174, 0.08);
  padding: 1px 5px;
  border-radius: 4px;
}

/* ---------- header ---------- */
.site-header {
  background: linear-gradient(135deg, var(--indigo) 0%, #2b1746 60%, #3d2260 100%);
  color: var(--cream);
  padding: 44px 0 34px;
}
.site-header h1 {
  margin: 0 0 6px;
  font-size: 2rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}
.site-header .sub {
  margin: 0;
  color: #cfc4e2;
  font-size: 0.98rem;
}
.site-header code { background: rgba(212, 175, 55, 0.16); color: #f0dca6; }

/* ---------- cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin: 26px 0 22px;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px 12px;
  border-top: 3px solid var(--purple);
}
.card.outflow { border-top-color: var(--gold); }
.card.inflow  { border-top-color: var(--inflow); }
.card.storage { border-top-color: var(--storage); }
.card.precip  { border-top-color: var(--precip); }
.card .label {
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--muted);
}
.card .value {
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-size: 1.5rem;
  font-weight: 600;
  margin: 4px 0 0;
  line-height: 1.15;
}
.card .unit { font-size: 0.8rem; color: var(--muted); font-weight: 400; white-space: nowrap; }
.card .delta { font-size: 0.78rem; color: var(--muted); margin-top: 3px; }
.card .delta.up   { color: #3f7d4f; }
.card .delta.down { color: #a3472f; }

/* ---------- panels ---------- */
.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px 22px 16px;
  margin-bottom: 22px;
}
.panel h2 {
  margin: 0 0 4px;
  font-size: 1.12rem;
  font-weight: 500;
}
.panel .muted { color: var(--muted); font-weight: 400; font-size: 0.85rem; }
.panel-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 6px;
}
.hint { margin: 0; color: var(--muted); font-size: 0.84rem; }
.controls { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 10px; }
.controls label.inline {
  display: flex;
  flex-direction: column;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  gap: 3px;
}
.controls select, .controls button {
  font-family: inherit;
  font-size: 0.85rem;
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--cream);
  color: var(--ink);
  cursor: pointer;
}
.controls button {
  background: var(--purple);
  color: #fff;
  border-color: var(--purple);
  font-weight: 500;
}
.controls button:hover { background: #6a5a9b; }
.controls button:disabled { opacity: 0.6; cursor: default; }
.fine { font-size: 0.78rem; color: var(--muted); margin: 8px 0 0; }

.chart { width: 100%; height: 420px; }

/* ---------- table ---------- */
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
th, td {
  text-align: right;
  padding: 7px 10px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
th:first-child, td:first-child { text-align: left; }
thead th {
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
  border-bottom: 2px solid var(--line);
}
tbody tr:hover { background: #f6f3ee; }
td.num { font-family: "JetBrains Mono", ui-monospace, Menlo, monospace; font-size: 0.82rem; }

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 10px;
  padding: 22px 0 34px;
  color: var(--muted);
  font-size: 0.8rem;
}
.site-footer a { color: var(--purple); }

@media (max-width: 640px) {
  .chart { height: 320px; }
  .site-header h1 { font-size: 1.5rem; }
  .panel { padding: 16px 14px 12px; }
}