:root {
  color-scheme: light;
  --bg: #ffffff;
  --surface: #fafafa;
  --border: #d9dce1;
  --text: #16181d;
  --text-dim: #6b7280;
  --accent: #1a56db;
  --danger: #b3261e;
  --danger-bg: #fdf1f0;
  --success-bg: #f0f7f0;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  min-height: 100vh;
}

.mono {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.eyebrow {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin: 0 0 10px;
}

.wordmark {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--text);
}

.card {
  width: 100%;
  max-width: 400px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 32px;
}

.header {
  text-align: center;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.subtitle {
  color: var(--text-dim);
  font-size: 14px;
  margin: 10px 0 0;
  line-height: 1.5;
}

.track-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.track-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  padding: 14px 16px;
  cursor: pointer;
}

.track-btn:hover {
  border-color: var(--text-dim);
  background: var(--surface);
}

.track-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.track-info { display: flex; flex-direction: column; gap: 3px; }

.track-label {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

.track-name {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
}

.track-arrow {
  color: var(--text-dim);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
}

.footnote {
  margin-top: 20px;
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.5;
}

/* Forms */
form { margin-top: 0; }

.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.field input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 10px 12px;
  color: var(--text);
  font-size: 15px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

.field input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

.submit-btn {
  width: 100%;
  border: 1px solid var(--text);
  border-radius: 4px;
  padding: 11px 14px;
  font-size: 15px;
  font-weight: 500;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  cursor: pointer;
  color: #ffffff;
  background: var(--text);
  margin-top: 4px;
}

.submit-btn:hover { background: #000000; border-color: #000000; }
.submit-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.back-link {
  display: inline-block;
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-dim);
  text-decoration: none;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

.back-link:hover { color: var(--text); text-decoration: underline; }

.message {
  font-size: 13px;
  border-radius: 4px;
  padding: 10px 12px;
  margin-bottom: 16px;
  display: none;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  border: 1px solid transparent;
}

.message.error {
  display: block;
  background: var(--danger-bg);
  border-color: #f0c9c6;
  color: var(--danger);
}

.message.success {
  display: block;
  background: var(--success-bg);
  border-color: #cfe4cf;
  color: #276b27;
}

.welcome-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.account-meta {
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 12px 14px;
  margin-top: 20px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 13px;
  text-align: left;
}

.account-meta div { display: flex; justify-content: space-between; padding: 4px 0; }
.account-meta span:first-child { color: var(--text-dim); }