:root {
  --bg: #0b1220;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-2: rgba(255, 255, 255, 0.09);
  --border: rgba(255, 255, 255, 0.12);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.68);
  --brand: #38bdf8;
  --ok: #22c55e;
  --warn: #f59e0b;
  --bad: #ef4444;
  --shadow: rgba(0, 0, 0, 0.25);
  --radius: 14px;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  color: var(--text);
  background: radial-gradient(1200px 600px at 20% 10%, rgba(56, 189, 248, 0.18), transparent 55%),
              radial-gradient(1000px 700px at 80% 20%, rgba(34, 197, 94, 0.14), transparent 50%),
              radial-gradient(1200px 800px at 40% 90%, rgba(245, 158, 11, 0.10), transparent 50%),
              var(--bg);
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 18px;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.95), rgba(34, 197, 94, 0.85));
  box-shadow: 0 10px 30px var(--shadow);
}

.h1 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.4px;
}

.sub {
  font-size: 13px;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 860px) {
  .grid.two { grid-template-columns: 1fr 1fr; }
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(10px);
}

.card h2 {
  margin: 0 0 10px;
  font-size: 16px;
}

.card p {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.row {
  display: flex;
  gap: 10px;
  align-items: center;
}

.row.stack {
  flex-direction: column;
  align-items: stretch;
}

label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}

input, select, textarea {
  width: 100%;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  outline: none;
}

input:focus, select:focus, textarea:focus {
  border-color: rgba(56, 189, 248, 0.7);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.18);
}

button {
  cursor: pointer;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.2px;
}

button.primary {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.95), rgba(34, 197, 94, 0.85));
  border-color: transparent;
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.kv {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 10px;
  margin-top: 8px;
}

.kv div {
  padding: 10px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.kv .k {
  color: var(--muted);
  font-size: 12px;
}

.kv .v {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
  word-break: break-word;
}

.notice {
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.35;
}

.notice.ok { border-color: rgba(34, 197, 94, 0.35); color: rgba(34, 197, 94, 0.95); }
.notice.warn { border-color: rgba(245, 158, 11, 0.35); color: rgba(245, 158, 11, 0.95); }
.notice.bad { border-color: rgba(239, 68, 68, 0.35); color: rgba(239, 68, 68, 0.95); }

.footer {
  margin-top: 22px;
  color: var(--muted);
  font-size: 12px;
}

.code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
}