:root {
  color-scheme: dark;
  --bg: #0b0b0d;
  --card-bg: #16161a;
  --text: #f2f2f4;
  --text-muted: #9a9aa2;
  --accent: #7c5cff;
  --accent-hover: #6a4be0;
  --border: #2a2a30;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
  margin: 0;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.card {
  width: 100%;
  max-width: 380px;
  text-align: center;
  padding: 40px 32px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
}

.logo {
  margin: 0 0 8px;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 0 0 32px;
  color: var(--text-muted);
  font-size: 15px;
}

.message {
  margin: 0 0 32px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.5;
}

.user-email {
  margin: 0 0 20px;
  font-size: 14px;
  color: var(--text-muted);
  word-break: break-all;
}

.btn {
  display: block;
  width: 100%;
  padding: 14px 20px;
  margin-bottom: 12px;
  border: none;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease;
}

.btn:last-child {
  margin-bottom: 0;
}

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

.btn-primary:hover {
  background: var(--accent-hover);
}

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

.btn-secondary:hover {
  background: #1f1f24;
}

.link-btn {
  box-sizing: border-box;
}

#account {
  margin-top: 8px;
}