* { margin: 0; padding: 0; box-sizing: border-box; }
    body {
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      font-family: 'Nunito Sans', sans-serif;
    }
    .login-container {
      background: #121212;
      border-radius: 16px;
      padding: 38px 32px;
      width: 100%;
      max-width: 440px;
      box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5), 0 0 100px rgba(222, 0, 57, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .logo {
      text-align: center;
      margin-bottom: 28px;
    }
    .rts-lockup {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.8rem;
      flex-wrap: wrap;
    }
    .rts-mark {
      font-family: 'Bebas Neue', sans-serif;
      letter-spacing: 0.04em;
      line-height: 1;
      text-transform: uppercase;
      font-size: 3rem;
    }
    .rts-mark .w { color: #fff; }
    .rts-mark .r { color: #de0039; }
    .rts-ed {
      display: inline-flex;
      align-items: center;
      font-family: 'Bebas Neue', sans-serif;
      letter-spacing: 0.02em;
      font-size: 2.4rem;
      line-height: 1;
      color: #d2d5dd;
      border: 1px solid #2f333f;
      padding: 6px 14px 2px;
      background: rgba(255, 255, 255, 0.04);
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-group label {
      display: block;
      color: #888;
      font-size: 0.85rem;
      margin-bottom: 8px;
      text-transform: uppercase;
      letter-spacing: 1px;
    }
    .form-group input {
      width: 100%;
      padding: 11px 16px;
      background: rgba(0, 0, 0, 0.3);
      border: 2px solid rgba(255, 255, 255, 0.1);
      border-radius: 10px;
      color: #fff;
      font-size: 1rem;
      transition: all 0.3s ease;
    }
    .form-group input:focus {
      outline: none;
      border-color: #de0039;
      box-shadow: 0 0 20px rgba(222, 0, 57, 0.2);
    }
    .form-group input::placeholder {
      color: #555;
    }
    .login-btn {
      width: 100%;
      padding: 12px;
      background: linear-gradient(135deg, #de0039 0%, #a80025 100%);
      border: none;
      border-radius: 10px;
      color: #fff;
      font-size: 1rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 2px;
      cursor: pointer;
      transition: all 0.3s ease;
      margin-top: 10px;
    }
    .login-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 30px rgba(222, 0, 57, 0.4);
    }
    .login-btn:disabled {
      opacity: 0.6;
      cursor: not-allowed;
      transform: none;
    }
    .error-msg {
      background: rgba(222, 0, 57, 0.1);
      border: 1px solid #de0039;
      color: #ff6b6b;
      padding: 12px 15px;
      border-radius: 8px;
      margin-bottom: 20px;
      font-size: 0.9rem;
      display: none;
    }
    .error-msg.show {
      display: block;
    }
    .footer {
      text-align: center;
      margin-top: 20px;
      color: #ffffff;
      font-size: 0.9rem;
    }