:root {
  --bg: #f3f4f1;
  --surface: #ffffff;
  --ink: #121417;
  --muted: #6b7280;
  --line: #d9ded7;
  --accent: #1f4d3a;
  --accent-soft: #e1eee8;
  --danger: #a13b2f;
  --shadow: 0 18px 45px rgba(18,20,23,.08);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
}
.app-shell { max-width: 1440px; margin: 0 auto; padding: 24px; }
.topbar {
  display: flex; justify-content: space-between; gap: 20px; align-items: flex-start;
  padding: 24px; background: var(--surface); border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow);
}
.eyebrow { margin: 0 0 6px; color: var(--accent); font-weight: 800; letter-spacing: .04em; text-transform: uppercase; font-size: 12px; }
h1, h2, h3 { margin: 0; }
h1 { font-size: 30px; }
h2 { font-size: 24px; }
h3 { font-size: 16px; }
p { color: var(--muted); margin: 8px 0 0; }
.api-box { display: grid; grid-template-columns: 70px 260px 110px 180px auto; gap: 8px; align-items: center; }
label { display: grid; gap: 6px; color: #374151; font-size: 13px; font-weight: 700; }
input, select {
  width: 100%; padding: 12px 13px; border: 1px solid var(--line); border-radius: 12px; background: #fff; font-size: 14px;
}
button { border: 0; border-radius: 12px; padding: 12px 16px; font-weight: 800; cursor: pointer; }
.primary { background: var(--accent); color: #fff; }
.ghost { background: var(--accent-soft); color: var(--accent); border: 1px solid #b8d2c6; }
.small { padding: 10px 14px; }
.tabs { display: flex; gap: 8px; margin: 18px 0; flex-wrap: wrap; }
.tabs button { background: #fff; border: 1px solid var(--line); color: #374151; }
.tabs button.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.panel { display: none; padding: 24px; background: var(--surface); border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow); }
.panel.active { display: block; }
.section-head { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; margin-bottom: 18px; }
.status-pill { background: #101827; color: #fff; padding: 12px 16px; border-radius: 999px; font-weight: 800; }
.button-grid { display: grid; gap: 10px; margin-bottom: 12px; }
.button-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.button-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.choice { background: #fff; border: 1px solid var(--line); font-size: 16px; }
.choice.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.card-form, .mini-panel, .table-card, .kpi-input {
  padding: 18px; border: 1px solid var(--line); background: #fbfcfb; border-radius: 18px; margin: 14px 0;
}
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-bottom: 12px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-bottom: 12px; }
.exchange-grid, .parallel, .split-panels { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.hidden { display: none; }
.result-box { white-space: pre-wrap; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px; color: #1f2937; background: #f8fafc; border: 1px solid #e5e7eb; border-radius: 16px; padding: 14px; min-height: 48px; margin-top: 14px; overflow: auto; }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin: 16px 0; }
.metric-card { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 18px; }
.metric-card strong { display: block; font-size: 28px; margin-top: 8px; }
.metric-card span { color: var(--muted); font-weight: 700; }
.date-tools { display: flex; gap: 8px; align-items: center; }
.kpi-input { display: grid; grid-template-columns: 160px 1fr 1fr auto; gap: 10px; align-items: center; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { border-bottom: 1px solid var(--line); padding: 10px; text-align: left; vertical-align: top; }
th { color: var(--muted); font-size: 12px; text-transform: uppercase; }
.badge { display: inline-block; padding: 4px 8px; border-radius: 999px; background: #edf2ee; color: #294836; font-weight: 800; font-size: 12px; }
.badge.danger { background: #f6e6e3; color: var(--danger); }
@media (max-width: 980px) {
  .topbar, .section-head { flex-direction: column; }
  .api-box, .grid-4, .grid-2, .exchange-grid, .parallel, .split-panels, .cards, .kpi-input { grid-template-columns: 1fr; }
  .button-grid.two, .button-grid.three { grid-template-columns: 1fr; }
}