:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --bg: #f4f6fb;
  --card-bg: #ffffff;
  --text: #1f2430;
  --muted: #6b7280;
  --error: #dc2626;
  --success: #16a34a;
  --border: #e2e5eb;
  --radius: 10px;
}

* { box-sizing: border-box; }

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

.auth-wrap {
  max-width: 420px;
  margin: 60px auto;
  padding: 0 16px;
}

.auth-wrap h1 {
  text-align: center;
  font-size: 22px;
  margin-bottom: 24px;
  color: var(--primary-dark);
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.card h2 {
  margin-top: 0;
  font-size: 18px;
}

label {
  display: block;
  margin-bottom: 14px;
  font-size: 14px;
  color: var(--muted);
}

input, select {
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  color: var(--text);
}

button {
  width: 100%;
  padding: 11px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

button:hover { background: var(--primary-dark); }

.alert {
  padding: 10px 14px;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 14px;
}

.alert-error { background: #fee2e2; color: var(--error); }
.alert-success { background: #dcfce7; color: var(--success); }

p { text-align: center; font-size: 14px; color: var(--muted); }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }