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

  body {
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #0a1628;
    font-family: 'Geist Sans', 'SF Pro Display', 'Helvetica Neue', sans-serif;
    color: #e2e8f0;
  }

  .login-card {
    width: 100%;
    max-width: 360px;
    padding: 40px 32px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
  }

  .login-card h1 {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #64748b;
    margin-bottom: 32px;
    text-align: center;
  }

  .login-card label {
    display: block;
    font-size: 13px;
    color: #94a3b8;
    margin-bottom: 8px;
  }

  .login-card input[type="password"] {
    width: 100%;
    padding: 10px 14px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: #e2e8f0;
    font-size: 15px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
  }
  .login-card input[type="password"]:focus {
    border-color: rgba(255, 255, 255, 0.25);
  }

  .login-card button {
    width: 100%;
    margin-top: 20px;
    padding: 10px 0;
    background: #e2e8f0;
    color: #0a1628;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.1s;
  }
  .login-card button:hover { opacity: 0.9; }
  .login-card button:active { transform: scale(0.98); }
  .login-card button:disabled { opacity: 0.5; cursor: not-allowed; }

  .error-msg {
    margin-top: 16px;
    font-size: 13px;
    color: #ef4444;
    text-align: center;
    min-height: 20px;
  }

  @keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-6px); }
    40%, 80% { transform: translateX(6px); }
  }
  .shake { animation: shake 0.4s ease; }