:root {
  --bg: #0f1115;
  --panel: #171a21;
  --line: #2a2f3a;
  --muted: #8b93a7;
  --brand: #f59e0b;
  --brand-2: #fbbf24;
  --text: #f3f4f6;
}
* {
  box-sizing: border-box;
}
[hidden] {
  display: none !important;
}
html,
body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Poppins', system-ui, -apple-system, 'Segoe UI', sans-serif;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
}
.logo {
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.02em;
}
.logo span {
  color: var(--brand);
}
.muted {
  color: var(--muted);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: 14px;
  padding: 14px 22px;
  font: inherit;
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.1s;
}
.btn:active {
  transform: scale(0.97);
}
.btn-primary {
  background: var(--brand);
  color: #111;
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}
.center {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  text-align: center;
}
.spinner {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 4px solid rgba(255, 255, 255, 0.15);
  border-top-color: var(--brand);
  animation: spin 0.9s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}