:root {
  --bg: #0f172a;
  --panel: #111827;
  --panel-2: #0b1220;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --primary: #4f46e5;
  --primary-2: #6366f1;
  --danger: #ef4444;
  --ok: #22c55e;
  --warn: #f59e0b;
  --radius: 12px;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica Neue, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 800px at 10% -10%, #1f2937, transparent),
              radial-gradient(800px 600px at 100% 0%, #0b1324, transparent),
              var(--bg);
  color: var(--text);
}

.container {
  width: min(100%, 980px);
  margin-inline: auto;
  padding: 24px 16px;
}

header h1 { margin: 0 0 4px 0; font-weight: 700; letter-spacing: 0.3px; }
.subtitle { margin: 0; color: var(--muted); }

.card {
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  border: 1px solid #1f2937;
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.25), inset 0 1px 0 rgba(255,255,255,0.03);
}

h2 { margin: 0 0 12px 0; font-size: 1.1rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
}

.field { grid-column: span 2; }
.field label { display: block; font-size: 0.85rem; color: var(--muted); margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #243042;
  background: #0b1220;
  color: var(--text);
}

.actions { display: flex; align-items: center; gap: 10px; margin-top: 12px; }
.spacer { flex: 1; }

button {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 10px 14px;
  background: #1f2937;
  color: var(--text);
  cursor: pointer;
}
button.primary { background: linear-gradient(180deg, var(--primary-2), var(--primary)); border-color: #3b34c2; }
button.ghost { background: transparent; border-color: #334155; color: var(--muted); }
button.danger { background: linear-gradient(180deg, #ef4444, #dc2626); border-color: #b91c1c; }
button:disabled { opacity: 0.6; cursor: not-allowed; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead th { text-align: left; font-weight: 600; color: var(--muted); border-bottom: 1px solid #243042; padding: 8px; }
tbody td { padding: 10px 8px; border-bottom: 1px solid #182033; }
tfoot th { padding: 10px 8px; border-top: 1px solid #243042; }

.num { text-align: right; }
.muted { color: var(--muted); }

.tag {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 0.8rem;
  border: 1px solid #2a3347;
}
.tag.get { background: rgba(34,197,94,0.12); border-color: #14532d; color: #86efac; }
.tag.give { background: rgba(239,68,68,0.12); border-color: #7f1d1d; color: #fca5a5; }

.settlement { margin: 0; padding-left: 18px; }
.settlement li { margin: 8px 0; }

.footer { padding-top: 8px; padding-bottom: 40px; }

@media (max-width: 720px) {
  .grid { grid-template-columns: 1fr; }
  .field { grid-column: auto; }
}