:root {
  --bg: #f6f8fc;
  --card: #ffffff;
  --text: #1a1a1a;
  --muted: #5b6472;
  --primary: #2b6fff;
  --border: #e8ebf0;
  --shadow: 0 10px 30px rgba(0,0,0,0.06);
  --radius: 14px;
}

/* PAGE CENTER */
.auth-body {
  margin: 0;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #eef3ff, var(--bg));
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial;
}

/* CARD */
.auth-card {
  width: 360px;
  background: var(--card);
  padding: 40px;
  border-radius: 18px;
  box-shadow: var(--shadow);
  text-align: center;
}

/* TITLE */
.auth-card h1 {
  margin: 0 0 8px;
  font-size: 26px;
}

.auth-card p {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 20px;
}

/* INPUTS */
.auth-card input {
  width: 100%;
  padding: 12px;
  margin: 8px 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  font-size: 14px;
}

.auth-card input:focus {
  border-color: var(--primary);
}

/* BUTTON */
.auth-card button {
  width: 100%;
  margin-top: 12px;
  padding: 12px;
  border: none;
  border-radius: var(--radius);
  background: var(--primary);
  color: white;
  font-weight: 500;
  cursor: pointer;
  transition: 0.2s;
}

.auth-card button:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

/* SWITCH LINK */
.auth-switch {
  margin-top: 15px;
  font-size: 13px;
  color: var(--muted);
}

.auth-switch a {
  color: var(--primary);
  text-decoration: none;
}

/* ERROR MESSAGE */
.auth-message {
  color: red;
  font-size: 13px;
  margin-bottom: 10px;
}