:root {
  --bg: #0f0f0f;
  --card: #1a1a1a;
  --border: #2a2a2a;
  --text: #e5e5e5;
  --muted: #888;
  --accent: #6c5ce7;
  --accent-hover: #7c6cf7;
  --success: #00b894;
  --error: #e74c3c;
  --radius: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  width: 100%;
  max-width: 420px;
  padding: 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.logo {
  text-align: center;
  margin-bottom: 24px;
}

.logo h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.logo span { color: var(--accent); }

.logo p {
  color: var(--muted);
  font-size: 14px;
  margin-top: 4px;
}

.steps-indicator {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  justify-content: center;
}

.steps-indicator .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  transition: background 0.3s;
}

.steps-indicator .dot.active { background: var(--accent); }
.steps-indicator .dot.done { background: var(--success); }

.step { display: none; }
.step.active { display: block; }

label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 6px;
  font-weight: 500;
}

input {
  width: 100%;
  padding: 12px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  outline: none;
  transition: border-color 0.2s;
}

input:focus { border-color: var(--accent); }
input::placeholder { color: #555; }

.btn {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 16px;
  transition: background 0.2s, opacity 0.2s;
}

.btn:hover { background: var(--accent-hover); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.status {
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  display: none;
}

.status.error {
  display: block;
  background: rgba(231, 76, 60, 0.1);
  color: var(--error);
  border: 1px solid rgba(231, 76, 60, 0.2);
}

.status.success {
  display: block;
  background: rgba(0, 184, 148, 0.1);
  color: var(--success);
  border: 1px solid rgba(0, 184, 148, 0.2);
}

.status.info {
  display: block;
  background: rgba(108, 92, 231, 0.1);
  color: var(--accent);
  border: 1px solid rgba(108, 92, 231, 0.2);
}

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
  margin-right: 6px;
}

@keyframes spin { to { transform: rotate(360deg); } }

.result-box {
  margin-top: 16px;
  padding: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 12px;
  max-height: 300px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
  color: var(--muted);
  display: none;
}