:root {
  --glass: rgba(255,255,255,0.08);
  --border: rgba(255,255,255,0.15);
  --accent: #00ffd0;
  --text: #f1f5f9;
}
body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  color: var(--text);
  background: var(--bg, radial-gradient(circle at top, #0f172a, #020617));
  min-height: 100vh;
}
.wave-bg {
  position: fixed;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: -1;
}
.panel {
  max-width: 1200px;
  margin: 40px auto;
  padding: 24px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 18px;
  backdrop-filter: blur(18px);
  box-shadow: 0 20px 60px rgba(0,0,0,.4);
}
.header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}
.header img { height: 42px; }
.header h1 { font-size: 22px; font-weight: 600; }
.dns-card {
  background: rgba(0,0,0,.35);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 12px;
}
.dns-card.active { outline: 2px solid var(--accent); }
input, select, button {
  background: rgba(0,0,0,.45);
  color: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
}
button.primary {
  background: linear-gradient(135deg, #00ffd0, #38bdf8);
  color: #020617;
  font-weight: 600;
  border: none;
}
button:hover { opacity: .9; }