:root {
  --bg: #0e1024;
  --card: #161a3a;
  --accent: #6f7cff;
  --neon: #2bff88;
  --danger: #ff4d6d;
  --text: #e6e8ff;
  --muted: #9aa0ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at top, #15194a, var(--bg));
  font-family: Inter, system-ui, sans-serif;
  color: var(--text);
}

.container {
  max-width: 900px;
  margin: auto;
  padding: 20px;
}

h1 {
  text-align: center;
  font-weight: 600;
  letter-spacing: 1px;
}

h2, h3 {
  margin-top: 0;
}

.card {
  background: linear-gradient(180deg, #1a1f4f, var(--card));
  border-radius: 12px;
  padding: 16px;
  margin-top: 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,.3);
}

.center {
  text-align: center;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--card);
  padding: 10px 14px;
  border-radius: 10px;
  margin-bottom: 10px;
}

textarea {
  width: 100%;
  margin-top: 6px;
  background: #0d1030;
  border: 1px solid #2a2f6a;
  border-radius: 8px;
  color: var(--text);
  padding: 8px;
  resize: none;
}

textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.list {
  padding-left: 16px;
}

.list li {
  margin-bottom: 10px;
}

.btn {
  border: none;
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
  font-weight: 500;
}

.btn.primary {
  background: var(--accent);
  color: #fff;
}

.btn.secondary {
  background: #2a2f6a;
  color: var(--text);
}

.btn.neon {
  background: var(--neon);
  color: #002412;
  box-shadow: 0 0 12px rgba(43,255,136,.4);
}

.btn.danger {
  background: var(--danger);
  color: #fff;
}

.btn.ghost {
  background: transparent;
  border: 1px solid var(--muted);
  color: var(--muted);
}

.btn:hover {
  opacity: .9;
}

.success {
  color: var(--neon);
}

.warn {
  color: #ffcc00;
}

.danger {
  border: 1px solid rgba(255,77,109,.4);
}

.hidden {
  display: none;
}

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