:root {
  --bg: #0b1220;
  --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);
  --shadow: 0 20px 60px rgba(0,0,0,0.35);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: radial-gradient(1200px 700px at 20% 10%, rgba(89, 131, 255, 0.25), transparent 60%),
              radial-gradient(900px 600px at 90% 40%, rgba(56, 255, 184, 0.16), transparent 55%),
              var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  padding: 24px;
}

.card {
  width: min(520px, 100%);
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: 18px;
  padding: 22px 20px;
  backdrop-filter: blur(10px);
}

h1 {
  margin: 0 0 10px 0;
  font-size: 20px;
  letter-spacing: 0.2px;
}

.hint {
  margin: 0 0 16px 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.form {
  display: grid;
  gap: 10px;
}

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

.input {
  width: 100%;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.25);
  color: var(--text);
  outline: none;
}

.input:focus {
  border-color: rgba(89,131,255,0.65);
}

.button {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(89,131,255,0.35);
  background: rgba(89,131,255,0.18);
  color: var(--text);
  cursor: pointer;
  font-weight: 600;
}

.button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.status {
  margin-top: 14px;
  font-size: 13px;
  color: var(--muted);
  min-height: 18px;
}

.status.ok { color: rgba(120, 255, 190, 0.95); }
.status.err { color: rgba(255, 140, 140, 0.95); }