:root {
  --bg: #0f1419;
  --card: #1a222c;
  --text: #e8eef4;
  --muted: #8b9aab;
  --accent: #3dd68c;
  --danger: #ff6b6b;
  --line: #2a3542;
  --input: #121820;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: radial-gradient(1200px 600px at 10% -10%, #1c3a2e 0%, transparent 50%),
              radial-gradient(900px 500px at 100% 0%, #1a2a40 0%, transparent 45%),
              var(--bg);
  color: var(--text);
  min-height: 100vh;
}
.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.brand { color: var(--text); text-decoration: none; font-weight: 700; letter-spacing: 0.02em; }
nav a { color: var(--muted); margin-left: 1rem; text-decoration: none; }
nav a:hover { color: var(--accent); }
.wrap { max-width: 960px; margin: 0 auto; padding: 1.5rem; }
.card {
  background: color-mix(in srgb, var(--card) 92%, transparent);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.25rem 1.4rem;
  margin-bottom: 1.25rem;
}
h1, h2 { margin: 0 0 0.5rem; }
.muted { color: var(--muted); font-size: 0.95rem; }
.stack { display: grid; gap: 0.75rem; margin-top: 1rem; }
label { display: grid; gap: 0.35rem; font-size: 0.9rem; color: var(--muted); }
input {
  background: var(--input);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  padding: 0.65rem 0.75rem;
  font-size: 1rem;
}
button, .btn {
  display: inline-block;
  background: var(--accent);
  color: #062016;
  border: 0;
  border-radius: 8px;
  padding: 0.65rem 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}
button.danger { background: var(--danger); color: #fff; }
.row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1rem; align-items: center; }
.flash { padding: 0.75rem 1rem; border-radius: 8px; margin-bottom: 1rem; }
.flash.ok { background: #143528; color: #b6f0d0; }
.flash.err { background: #3a1c1c; color: #ffc9c9; }
.ok-box { border: 1px solid #2f6b4f; border-radius: 10px; padding: 1rem; background: #12261c; }
.stats { display: flex; gap: 1rem; margin-top: 1rem; flex-wrap: wrap; }
.stat {
  flex: 1;
  min-width: 140px;
  background: var(--input);
  border-radius: 10px;
  padding: 1rem;
  border: 1px solid var(--line);
}
.stat .num { font-size: 2rem; font-weight: 700; color: var(--accent); }
.stat .lbl { color: var(--muted); font-size: 0.85rem; }
.placeholder {
  border: 1px dashed var(--line);
  border-radius: 10px;
  padding: 1.5rem;
  color: var(--muted);
  text-align: center;
  margin-top: 0.75rem;
}
table { width: 100%; border-collapse: collapse; margin-top: 0.75rem; font-size: 0.92rem; }
th, td { text-align: left; padding: 0.55rem 0.4rem; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }
code { font-size: 0.85rem; }