:root {
  --bg: #0f1419;
  --panel: #1a222c;
  --text: #e8eef4;
  --muted: #93a1b0;
  --accent: #3dd6c6;
  --danger: #ff6b6b;
  --border: #2a3542;
  --font: "IBM Plex Sans", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  background:
    radial-gradient(1200px 600px at 10% -10%, #1d3a3a 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #243049 0%, transparent 50%),
    var(--bg);
  color: var(--text);
}
.wrap { max-width: 960px; margin: 0 auto; padding: 2rem 1.25rem 4rem; }
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}
.mark { font-weight: 700; letter-spacing: 0.02em; }
.muted { color: var(--muted); }
.panel {
  background: color-mix(in srgb, var(--panel) 92%, black);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}
h1, h2 { margin: 0 0 0.75rem; font-weight: 650; }
label { display: block; margin: 0.75rem 0 0.35rem; color: var(--muted); font-size: 0.9rem; }
input, textarea, select, button {
  font: inherit;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #10161d;
  color: var(--text);
  padding: 0.65rem 0.8rem;
  width: 100%;
}
button {
  width: auto;
  cursor: pointer;
  background: var(--accent);
  color: #06221f;
  border: none;
  font-weight: 650;
  margin-top: 0.85rem;
}
button.secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
button.danger { background: var(--danger); color: #1a0505; }
.row { display: flex; gap: 0.75rem; flex-wrap: wrap; align-items: end; }
.row > * { flex: 1; min-width: 140px; }
.hidden { display: none !important; }
.error { color: var(--danger); margin-top: 0.75rem; }
table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { text-align: left; padding: 0.65rem 0.4rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
.actions { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.actions button { margin-top: 0; padding: 0.4rem 0.65rem; font-size: 0.85rem; }
code { font-size: 0.85em; }