:root {
  --bg0: #0b1020;
  --bg1: #0f172a;
  --card: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.12);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.7);
  --accent: #7c3aed;
  --danger: #ef4444;
  --focus: rgba(124, 58, 237, 0.45);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji",
    "Segoe UI Emoji";
  color: var(--text);
  background: radial-gradient(1200px 800px at 20% 10%, rgba(124, 58, 237, 0.25), transparent 55%),
    radial-gradient(900px 700px at 90% 20%, rgba(59, 130, 246, 0.18), transparent 50%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  min-height: 100vh;
}

.container {
  width: min(920px, calc(100% - 32px));
  margin: 32px auto 80px;
}

h1 {
  margin: 0 0 6px;
  font-size: 28px;
  letter-spacing: -0.01em;
}

h2 {
  margin: 0 0 10px;
  font-size: 16px;
  color: var(--muted);
  font-weight: 600;
}

p {
  margin: 0 0 16px;
}

.muted {
  color: var(--muted);
}

.small {
  font-size: 13px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  margin: 14px 0;
}

label {
  display: block;
  margin: 10px 0;
  font-size: 13px;
  color: var(--muted);
}

input {
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.18);
  color: var(--text);
  outline: none;
}

input:focus {
  border-color: rgba(124, 58, 237, 0.55);
  box-shadow: 0 0 0 4px var(--focus);
}

.row {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  align-items: center;
  flex-wrap: wrap;
}

button {
  cursor: pointer;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 10px;
  font-weight: 600;
}

button.primary {
  background: linear-gradient(90deg, rgba(124, 58, 237, 0.9), rgba(59, 130, 246, 0.75));
  border-color: rgba(124, 58, 237, 0.55);
}

button.danger {
  background: rgba(239, 68, 68, 0.14);
  border-color: rgba(239, 68, 68, 0.35);
}

a.link {
  color: rgba(147, 197, 253, 0.95);
  text-decoration: none;
  font-weight: 600;
}

a.link:hover {
  text-decoration: underline;
}

details {
  margin-top: 14px;
}

details > summary {
  cursor: pointer;
  color: var(--muted);
  font-weight: 600;
}

details > summary:hover {
  color: rgba(255, 255, 255, 0.88);
}

.pre {
  margin: 10px 0 0;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.2);
  overflow: auto;
  max-height: 520px;
  font-size: 12px;
  line-height: 1.45;
}