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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(180deg, #f8f9fc 0%, #eef1f7 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  color: #1a1f36;
  padding: 20px;
}

.auth-card {
  background: #ffffff;
  border-radius: 12px;
  padding: 36px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  border: 1px solid #e8ebf2;
}

.auth-card h1 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 8px;
  color: #0f172a;
}

.auth-card .sub {
  color: #6b7380;
  font-size: 13px;
  margin-bottom: 24px;
}

.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: #374151;
  margin-bottom: 6px;
}

.field label .hint {
  color: #9ca3af;
  font-weight: 400;
  font-size: 12px;
}

.field input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #d8dde6;
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.field input:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.btn {
  display: block;
  width: 100%;
  padding: 10px 16px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
  font-family: inherit;
}

.btn-primary {
  background: #2563eb;
  color: white;
}

.btn-primary:hover { background: #1d4ed8; }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.err {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
  padding: 10px 12px;
  border-radius: 6px;
  font-size: 13px;
  margin-bottom: 14px;
}

.msg {
  padding: 10px 12px;
  border-radius: 6px;
  font-size: 13px;
  margin-bottom: 14px;
}

.msg.ok {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #166534;
}

.msg.err {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
}

.footer-links {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #eef0f4;
  text-align: center;
  font-size: 13px;
  color: #6b7380;
}

.footer-links a {
  color: #2563eb;
  text-decoration: none;
  margin: 0 4px;
}

.footer-links a:hover { text-decoration: underline; }